JP2013024471A - Controller for facility equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a controller which achieves both of securing responsiveness to an energy consumption suppressing request, and harmonization of achievement of energy consumption suppressing target with user's comfort, when an object receives an energy consumption suppressing request from an energy supplier.SOLUTION: A controller 30 for facility equipment includes a reception part 31, a first adjustment control section 36c, and a second adjustment control section 36d. The reception part receives the energy consumption suppressing request from the energy supplier. The first adjustment control section suppresses energy consumption at a predetermined level for a predetermined time right after the energy consumption suppression request. The second adjustment control section suppresses energy consumption at a level corresponding to the suppressing request for a predetermined subsequent time. Energy adjustment control is performed differently right after the reception of the energy consumption suppressing request and after that, so as to achieve both of securing responsiveness and the harmonization of achievement of energy consumption suppressing target with user's comfort, with ease.

Description

  The present invention relates to a control device for equipment.

  In recent years, there has been a widespread movement in which energy suppliers work on a plurality of properties that are users to control energy consumption during times of high energy demand and to efficiently operate energy supply facilities.

  For example, in Patent Document 1 (Japanese Patent Application Laid-Open No. 2005-107901), a power supplier monitors the usage status of a user's electrical equipment, and when the power supply and demand is tight, the needs of the power supplier and the user's predetermined electricity A system has been proposed in which a user's electrical device is stopped based on a priority order regarding the stop of the device.

  When the energy supply and demand is tight, it is necessary for the user's equipment to respond promptly to the energy suppression request from the energy supplier in order to reliably avoid the situation where the energy demand exceeds the supply amount. It is also desirable for the user to ensure the responsiveness to the suppression request in order to avoid the increase in energy price and the payment of penalty due to not responding to the suppression request.

  On the other hand, once the responsiveness is ensured, it is important to secure the comfort of the user while suppressing the energy consumption within the target value.

  On the other hand, in the system of Patent Document 1, since the energy consumption is uniformly controlled, it tends to be difficult to simultaneously satisfy responsiveness ensuring, energy consumption suppression, and user comfort. There is. For example, in the system of Patent Document 1, if control is performed to immediately stop the equipment, responsiveness is easily ensured. However, if the facility equipment continues to be stopped, the user's comfort may be impaired even though the user sets the priority order for stopping the equipment.

  An object of the present invention is to control equipment that facilitates both ensuring responsiveness, achieving the goal of reducing energy consumption, and harmonizing user comfort when a property accepts an energy suppression request from an energy supplier. To provide an apparatus.

  A control device according to a first aspect of the present invention is a control device that controls equipment, and includes a reception unit, a first adjustment control unit, and a second adjustment control unit. The reception unit receives an energy suppression request from a management device of an energy supplier that supplies energy to the equipment. The first adjustment control unit suppresses the energy consumption amount of the facility device with a predetermined intensity during the first predetermined time when the suppression request is received. A 2nd adjustment control part suppresses energy consumption with the intensity | strength according to the suppression request | requirement for 2nd predetermined time after progress of 1st predetermined time.

  Here, different energy adjustment control is executed immediately after receiving the energy suppression request and thereafter. Energy adjustment control that facilitates both ensuring responsiveness immediately after receiving an energy suppression request, achieving the goal of suppressing energy consumption after ensuring responsiveness, and harmonizing user comfort is facilitated.

  The control apparatus which concerns on the 2nd viewpoint of this invention is a control apparatus which concerns on a 1st viewpoint, Comprising: A reception part receives energy suppression request | requirement amount with an energy suppression request | requirement from the management apparatus of an energy supplier. The first adjustment control unit suppresses the energy consumption more than the energy suppression request amount. The energy suppression requirement amount is a target value of the energy consumption that should suppress the energy consumption per unit time below that value.

  Here, immediately after reception of the suppression request, the energy consumption is suppressed to be equal to or greater than the energy suppression request amount, thereby ensuring responsiveness to the request.

  The control apparatus which concerns on the 3rd viewpoint of this invention is a control apparatus which concerns on a 2nd viewpoint, Comprising: The calculation part which calculates the 1st energy suppression possible amount which equipment can suppress according to 1 or several conditions, 1st It further includes a presentation unit that presents the energy suppression possible amount to the management device. The reception unit receives a value based on one of the first energy suppression possible amounts from the management device as an energy suppression request amount.

  Here, the control device calculates one or a plurality of first energy suppression possible amounts and presents them to the management device. On the other hand, a value based on one first energy suppression possible amount is presented from the management device as an energy suppression required amount. By trying to communicate in both directions, the operation of the equipment according to the reality can be easily realized.

  Furthermore, when the management apparatus is presented with a plurality of first energy suppression possible amounts, the energy supplier can have a range of choices in the energy suppression request amount.

  A control device according to a fourth aspect of the present invention is the control device according to the third aspect, and further includes a determination unit, a recalculation unit, and a distribution unit. The determination unit determines the condition at the time when the first energy suppression possible amount corresponding to the received energy suppression request amount is calculated when the suppression request is received. The recalculation unit calculates the second energy suppression possible amount under the same condition as the condition determined by the determination unit. The distribution unit compares the energy suppression requirement amount with the second energy suppression possible amount, and when the energy suppression requirement amount is larger, the energy consumption is suppressed by the difference between the energy suppression requirement amount and the second energy suppression possible amount. Are allocated to equipment.

  Here, the distribution is performed when the energy suppression request amount cannot be satisfied under the conditions at the time of calculating the first energy suppression possible amount due to the difference in the operation status of the equipment between the calculation of the first energy suppression possible amount and the reception of the suppression request. Allocate equipment to reduce energy consumption that the department cannot satisfy. Flexible energy adjustment control suitable for the current situation is realized.

  A control device according to a fifth aspect of the present invention is the control device according to any one of the first to fourth aspects, wherein the first adjustment control unit is the strongest in the first predetermined time immediately after the suppression request. Suppress energy. Thereafter, the intensity of energy suppression is weakened until the end of the first predetermined time.

  Here, in the first predetermined time, a time for strongly suppressing the energy consumption with the highest priority on responsiveness and a transition time for weakening the suppression of the energy consumption are provided. It becomes easy to smoothly shift from control for ensuring responsiveness to control that achieves the goal of energy consumption suppression and the user's comfort.

  A control device according to a sixth aspect of the present invention is the control device according to any one of the first to fifth aspects, further comprising a responsiveness determination unit and a first predetermined time adjustment unit. The responsiveness determining unit determines whether the intensity of energy suppression by the first adjustment control unit has reached a predetermined intensity. The first predetermined time adjustment unit adjusts the first predetermined time to a necessary and sufficient length that can reach the predetermined intensity based on the determination result of the responsiveness determination unit.

  Here, it is possible to shorten the first predetermined time as much as possible within a range in which responsiveness can be ensured. As the first predetermined time is shorter, the user's comfort is less likely to be impaired.

  A control device according to a seventh aspect of the present invention is the control device according to any one of the first to sixth aspects, wherein the first predetermined time is 10 minutes or less.

  Here, by setting the first predetermined time to 10 minutes or less, even if energy adjustment control specialized in ensuring responsiveness is executed for the first predetermined time, the user's comfort is hardly impaired.

  In the control device according to the first aspect of the present invention, when receiving the energy consumption suppression request, the energy adjustment control immediately after receiving the energy suppression request and the energy adjustment control after the lapse of a predetermined time are individually provided. Thus, it is possible to realize energy adjustment control that satisfies both of ensuring responsiveness to a suppression request, achieving the goal of suppressing energy consumption after ensuring responsiveness, and harmonizing user comfort.

  In the control device according to the second aspect of the present invention, immediately after receiving the suppression request, the energy consumption is suppressed more than the energy suppression request amount, thereby ensuring responsiveness to the request.

  In the control device according to the third aspect of the present invention, communication between the control device and the management device is bidirectionally facilitated, and the operation of the equipment according to the reality is facilitated. Further, when the control device presents a plurality of energy suppression possible amounts to the management device, it is possible to give diversity to the suppression request amount.

  In the control device according to the fourth aspect of the present invention, even when the operation status of the equipment is different between the time when the first energy suppression possible amount is calculated and the time when the suppression request is received, it is flexible enough to satisfy the energy suppression required amount. Energy consumption is reduced.

  In the control device according to the fifth aspect of the present invention, within the first predetermined time, a time for strongly suppressing the energy consumption with the highest priority on responsiveness and a transition time for weakening the suppression of the subsequent energy consumption are provided. . It becomes easy to smoothly shift from control for ensuring responsiveness to control that achieves the goal of energy consumption suppression and the user's comfort.

  In the control devices according to the sixth and seventh aspects of the present invention, the user's comfort is hardly impaired by shortening the first predetermined time within a range in which responsiveness can be ensured.

Schematic configuration diagram of the entire system according to the first embodiment Schematic configuration diagram of a power company management apparatus according to the first embodiment The schematic block diagram of the control apparatus of the equipment apparatus which concerns on 1st Embodiment. Example (intensity) of conditions stored in the first condition storage area according to the first and second embodiments Example of conditions stored in the first condition storage area according to the first and second embodiments (control schedule) Example (intensity) of conditions stored in the second condition storage area according to the first and second embodiments Examples of conditions stored in the second condition storage area according to the first and second embodiments (control schedule) Example of first adjustment control according to first and second embodiments Examples of conditions that change depending on the state at the time of calculation according to the first and second embodiments Flowchart of presentation to the energy supplier of the first energy suppression possible amount according to the first embodiment Flow chart of energy adjustment control according to the first embodiment Schematic block diagram of a control device for equipment according to Modification 1C Schematic block diagram of a control device for equipment according to Modification 1D Schematic configuration diagram of the entire system according to the second embodiment Schematic configuration diagram of a power company management apparatus according to the second embodiment Schematic block diagram of a control device for equipment according to the second embodiment Example of information stored in the lowest unit price storage area according to the second embodiment Example of information stored in predicted price storage area according to second embodiment Flowchart of candidate time zone determination, predicted energy amount / predicted energy price calculation, and first energy suppression possible amount calculation according to the second embodiment Flow chart of energy adjustment control according to the second embodiment

<First Embodiment>
Hereinafter, the energy management system 100 according to the first embodiment will be described with reference to the drawings.

(1) Overall Configuration of Energy Management System 100 FIG. 1 shows an energy management system 100 according to the present embodiment. In the energy management system 100, power is supplied from the power company 1 to A and B as the property 2. The properties A and B are buildings where one or a plurality of equipment such as office buildings, tenant buildings, factories, and ordinary homes are installed. In FIG. 1, only two properties A and B are listed as properties that the electric power company 1 supplies power, but the number of properties is not limited to two.

  The electric power company 1 has a management device 10. The properties A and B are control devices 30 and 30 for equipment, air conditioners 40, 40,... As a plurality of equipment, and power supplies 6 that supply power to the air conditioners 40, 40,. 6 and power meters 7 and 7 for measuring the amount of power supplied from the power sources 6 and 6 to the air conditioners 40, 40,. The management device 10 and the control devices 30 and 30 are connected via the Internet 80a. In addition, the control device 30 and the air conditioners 40, 40,... In the same property are connected via a dedicated control line 80b.

  The air conditioners 40, 40 ... connect the outdoor units 41, 41 ..., the indoor units 42, 42 ..., and the outdoor units 41, 41 ... and the indoor units 42, 42 ..., respectively. It has refrigerant piping (not shown). The air conditioners 40, 40... May be multi-type or pair-type.

The control devices 30 and 30 of the property A and B transmit one or more first energy suppression possible amounts, which will be described later, to the electric power company 1 together with the length of the suppression possible time. The first energy suppression possible amount is the energy consumption per unit time that can be achieved at least during the suppression possible time, and is the maximum power [kW] in this embodiment. That is, the air conditioners 40, 40... Report to the management device 10 that the maximum power [kW] can be reduced to the first energy suppression possible amount at least during the suppression possible time. Note that the first energy suppression amount is not only physically achievable, but even if the energy consumption is suppressed to that amount during the suppression time, the effect on the user's indoor environment is within the allowable range. It is a value that can be suppressed. To suppress the influence on the user's indoor environment within an allowable range is, for example, to suppress the deviation between the indoor environment state values such as room temperature, humidity, illuminance, and ventilation and the target values of these state values within a predetermined range. The electric power company management device 10 selects one set from among a plurality of combinations of the first energy suppression amount and the suppression time that have been transmitted for each property, and the energy suppression request amount and Determine the suppression request time. The energy suppression request amount and the suppression request time are distributed together with the suppression request to the control devices 30 and 30 of the properties A and B via the Internet 80a. In addition, when the property A and B cannot reduce the energy consumption to the amount required for energy suppression, for example, a penalty such as an additional fee or payment of a penalty is imposed.

(2) Configuration of Each Device Hereinafter, the management device 10 and the control devices 30 and 30 included in the energy management system 100 will be described.

(2-1) Configuration of Management Device 10 FIG. 2 shows a schematic configuration diagram of the management device 10.

  The management device 10 includes a communication unit 11, a display unit 12, an input unit 13, a storage unit 14, and a control unit 15.

(2-1-1) Communication unit 11
The communication unit 11 is a network interface that enables the management apparatus 10 to be connected to the Internet 80a.

(2-1-2) Display unit 12
The display unit 12 is mainly composed of a display.

(2-1-3) Input unit 13
The input unit 13 mainly includes operation buttons, a keyboard, a mouse, and the like.

(2-1-4) Storage unit 14
The storage unit 14 is mainly composed of a hard disk. In the storage unit 14, combinations of the first energy suppression possible amount and the suppression possible time transmitted from the control devices 30 and 30 of the property A and B are stored for each property.

(2-1-5) Control unit 15
The control unit 15 mainly includes a CPU, a ROM, and a RAM. As shown in FIG. 2, the control unit 15 reads and executes the program stored in the above-described storage unit 14 to mainly perform the suppression determination unit 15a, the selection determination unit 15b, the suppression request transmission unit 15c, and the transmission. It functions as the request unit 15d.

(2-1-5-1) Suppression determining unit 15a
The suppression determination unit 15a predicts the supply amount and the demand amount of power, and if it is determined that the demand amount may exceed the supply amount after a predetermined time, the energy consumption amount of the property A and B is determined. Decide to request suppression. At the same time, the energy management system 100 as a whole determines the time to be suppressed and the allowable power demand.

(2-1-5-2) Selection determination unit 15b
The selection determination unit 15b selects a combination of the energy suppression request amount and the suppression request time for each property based on the information stored in the storage unit 14 and the time and reduction amount determined by the determination unit 15a. The selection is made such that the power when all the properties use the energy suppression request amount during the suppression request time and the allowable power demand determined by the suppression determination unit 15a are closest. Thereafter, the selection determination unit 15b performs correction so that the power when all the properties use the energy suppression request amount during the suppression request time matches the allowable power demand determined by the suppression determination unit 15a.

  More specifically, in this embodiment, the energy suppression request amount (Pr (A)) of the property A is the first energy selected by the selection determining unit 15b from the first energy suppression possible amount presented by the property A. Suppressable amount (Pc (A)) and total power (Σ (Pc)) when all properties supplied by the power company 1 use the first energy suppressible amount selected by the selection determination unit 15b The electric power company 1 is expressed by the following equation using the electric power demand (Pa) that can be tolerated during the suppression request time.

(Formula 1) Pr (A) = Pc (A) × (Pa ÷ Σ (Pc))
In other words, the amount of energy suppression required for property A is based on one of the first energy-suppressable amounts presented from property A, and the total power consumption of all properties that receive power supply from power company 1 is It is calculated so as not to exceed an allowable power demand amount during the suppression request time.

  If (Pa ÷ Σ (Pc))> 1 in Equation 1, instead of using Equation 1 to determine the required energy suppression amount, the required energy suppression amount Pr (A) = selection determining unit 15b It is good also as the selected 1st energy suppression possible amount Pc (A).

  In the present embodiment, the suppression request time coincides with one suppression possible time selected by the selection determination unit 15b. However, the suppression request time may also be calculated by the selection determination unit 15b based on the selected one suppression possible time.

(2-1-5-3) Suppression request transmitter 15c
The suppression request transmission unit 15c causes the communication unit 11 to output the energy suppression request amount and the suppression request time determined by the selection determination unit 15b to the properties A and B together with the energy consumption suppression request.

(2-1-5-4) Transmission request unit 15d
The transmission request unit 15d requests the properties A and B to transmit the first energy suppression possible amount. By requesting the transmission of the first energy suppression possible amount immediately before the suppression request, the first energy suppression possible amount close to the amount that can be actually suppressed by the user is grasped. As a result, it is easy to determine an appropriate energy suppression requirement.

(2-2) Configuration of Control Device 30 FIG. 3 shows a schematic configuration diagram of the control device 30. Hereinafter, the control device 30 installed in the property A will be described, but the control device 30 installed in the property B has the same configuration.

  The control device 30 includes a communication unit 31, an output unit 32, an input unit 33, a time management unit 34, a storage unit 35, and a control unit 36.

(2-2-1) Communication unit 31
The communication unit 31 is mainly a network interface that enables the control device 30 to be connected to the Internet 80a. The communication unit 31 performs two-way communication between the control device 30 and the management device 10 via the Internet 80a.

(2-2-2) Output unit 32
The output unit 32 is mainly composed of a display. In the output unit 32, the operation mode of the air conditioners 40, 40,... (For example, ON / OFF of the air conditioner, operation mode (cooling mode / heating mode), wind direction, air volume, suction temperature, and set temperature) is set. A screen is displayed. Further, the current power, the required amount of energy suppression, the amount of power actually reduced by energy adjustment control stored in the control information storage area 35f described later, the predicted power or the predicted power amount stored in the predicted amount storage area 35g, and The predicted energy price, the first energy suppression possible amount calculated by the calculation unit 36e, the second energy suppression possible amount calculated by the recalculation unit 36h, and the like are displayed.

(2-2-3) Input unit 33
The input unit 33 mainly includes an operation button and a touch panel that covers the display. Various commands from the user to the air conditioners 40, 40... Are input such as start / stop signals of the air conditioners 40, 40.

(2-2-4) Time management unit 34
The time management unit 34 includes a clock that is substantially synchronized with the management apparatus 10 of the electric power company, and performs time management of various controls executed by the control apparatus 30.

(2-2-5) Storage unit 35
The storage unit 35 is mainly composed of a hard disk. The storage unit 35 stores a program that can be read and executed by the control unit 36 described later. The storage unit 35 includes an operation status storage area 35a, a first adjustment control storage area 35b, a first condition storage area 35c, a request storage area 35d, a transmission storage area 35e, a control information storage area 35f, a predicted amount storage area 35g, A second condition storage area 35h is included.

(2-2-5-1) Operation status storage area 35a
The operating status storage area 35a stores the status of the air conditioners 40, 40... And the energy consumption measured by the power meter 7 acquired by the operating status grasping unit 36a described later as the operating status.

(2-2-5-2) First adjustment control storage area 35b
The first adjustment control storage area 35b stores information related to energy adjustment control (hereinafter referred to as first adjustment control) executed by a first adjustment control unit 36c described later. The information related to the first adjustment control is, for example, information related to the execution time of the first adjustment control and the intensity of energy consumption suppression. The stored information will be described later together with the description regarding the first adjustment control unit 36c.

(2-2-5-3) First condition storage area 35c
The first condition storage area 35c stores conditions used by the calculation unit 36e described later to calculate the first energy suppression possible amount. In the present embodiment, as shown in FIG. 4, the length of the control time during which the energy adjustment control is executed and the energy consumption reduction rate are stored in association with each other. However, the conditions to be stored are not limited to this.

  For example, at least one of the time when the energy adjustment control is executed, the predicted power or power amount, the predicted energy price, the state value of the indoor environment, the environmental condition, and the operating state of the air conditioners 40, 40. Further, the energy suppression strength may be stored in association with each other. The state value of the indoor environment is, for example, room temperature, humidity, illuminance, and ventilation. The environmental conditions are, for example, the weather, the outside air temperature, and the brightness. The operating state of equipment is, for example, equipment ON / OFF and energy consumption.

  The condition may not relate to the energy suppression strength but may relate to the energy adjustment control method. For example, as shown in FIG. 5, it relates to a control schedule in which some outdoor units of the air conditioners 40, 40... Are turned off and the air conditioners 40, 40. May be. FIG. 5 shows an example in which the total control time is 60 minutes, but a plurality of such control schedules may be prepared for each total control time, for example.

  In the present embodiment, the condition stored in the first condition storage area 35c is allowed to have an influence on the user's indoor environment, for example, room temperature and humidity, even if the energy adjustment control is executed using this condition. It is predetermined so as to be within the range. However, the conditions do not need to be fixed, and may be updated by the user inputting from the input unit 33. Further, for example, it is changed depending on the time when the energy adjustment control is executed, the predicted power, the predicted power amount, the predicted energy price, the state value of the indoor environment, the environmental condition, the operating state of the equipment, etc. Also good.

(2-2-5-4) Request storage area 35d
In the request storage area 35d, the energy suppression request amount and the suppression request time distributed from the management device 10 are stored.

(2-2-5-5) Transmission storage area 35e
The transmission storage area 35e stores the combination of the first energy suppression possible amount and the calculation condition transmitted to the management apparatus 10 most recently. The first energy suppression possible amount will be described later.

(2-2-5-6) Control information storage area 35f
In the control information storage area 35f, information on the execution time of the energy adjustment control of the air conditioners 40, 40... Executed by the first adjustment control unit 36c and the second adjustment control unit 36d described later and the contents of the energy adjustment control. Remember. The information related to the execution time of the energy adjustment control includes information on the start time and end time of the executed energy adjustment control. The information related to the content of the energy adjustment control includes, for example, the received energy suppression request amount, the second energy suppression possible amount calculated by the recalculation unit 36h described later, and the amount of power actually reduced during the energy adjustment control. included.

(2-2-5-7) Prediction amount storage area 35g
In the predicted amount storage area 35g, predicted power and predicted power amount for each predetermined time (every hour in the present embodiment) for a predetermined period (one day in the present embodiment) predicted by the prediction unit 36b described later. And the predicted energy price is stored.

(2-2-5-8) Second condition storage area 35h
In the second condition storage area 35h, the second adjustment control unit 36d described later executes energy adjustment control (hereinafter referred to as second adjustment control) when the required energy suppression amount is larger than the second energy suppression possible amount described later. The conditions to be used when doing this are stored. Specifically, conditions that can further suppress the energy consumption are stored as compared with the conditions of the first condition storage area 35c.

  If the condition relates to the intensity of energy suppression, and FIG. 4 is stored in the first condition storage area 35c, for example, the intensity of suppression is increased by a predetermined ratio (50% in FIG. 6) as shown in FIG. The condition is stored in the second condition storage area 35h.

  If the condition is related to the control schedule and FIG. 5 is stored in the first condition storage area 35c, for example, as shown in FIG. 7, the condition in which the number of air conditioners to be stopped is increased as compared to FIG. Is done.

  In the present embodiment, the conditions stored in the second condition storage area 35h are set in advance. However, the conditions may be those that can be updated by the user through the input unit 33. For example, the time when the energy adjustment control is executed, the predicted power or the predicted power amount, the predicted energy price, the indoor environment May be changed on the basis of the state value, the environmental condition, and the operating status of the air conditioners 40, 40.

(2-2-6) Control unit 36
The control unit 36 mainly includes a CPU, a ROM, and a RAM. The control unit 36 reads and executes the program stored in the storage unit 35 described above, thereby mainly operating state grasping unit 36a, prediction unit 36b, first adjustment control unit 36c, as shown in FIG. It functions as a second adjustment control unit 36d, a calculation unit 36e, a presentation unit 36f, a determination unit 36g, and a recalculation unit 36h.

(2-2-6-1) Driving status grasping part 36a
The operating status grasping unit 36a acquires the status of the air conditioners 40, 40... And the energy consumption measured by the power meter 7 as the operating status of the air conditioners 40, 40. The status of the air conditioners 40, 40... Includes, for example, ON / OFF of the air conditioner, operation mode (cooling mode / heating mode), suction temperature, set temperature, operating time, operating rate, and operating time. Driving capacity (%) is included. Here, the operating capacity (%) is the capacity of the air conditioners 40, 40 (more precisely, the compressor) to be operated with respect to the rated capacity of the air conditioners 40, 40,. Means that The operating condition grasping unit 36a receives the time from the time management unit 34 and presents the status and energy consumption of the air conditioners 40, 40... At a predetermined time interval (in this embodiment, every 5 minutes). Acquired by communicating with the machines 40, 40... The value acquired by the driving status grasping unit 36a is stored in the above-described driving status storage area 35a together with the date and time of data acquisition.

(2-2-6-2) Prediction unit 36b
The prediction unit 36b predicts electric power, electric energy, and electric power price for a predetermined period (one day in this embodiment). In the present embodiment, past performance values are used as they are as the predicted power, power amount, and power price. The predicted power, power amount, and power price are stored in the predicted amount storage area 35g.

  Specifically, in this embodiment, the maximum value of the hourly power from 9 am on the previous day to 9:00 am on the current day and the information on the amount of power per hour are obtained from 9 am on the day to 9 am on the next day. It is used as it is as the electric power and electric energy every hour until the hour. The power price is calculated by multiplying the hourly power amount of the previous day by the power unit price. In the present embodiment, the information is hourly, but the power and the amount of power may be predicted at shorter time intervals or longer time intervals.

  Note that the prediction method is not limited to the above method. For example, power by hour, power amount, and power price may be calculated statistically from information for the past week. Further, instead of or in addition to past information, for example, power, power amount, and power price may be predicted based on data such as weather forecast for the day.

(2-2-6-3) First adjustment control unit 36c
The first adjustment control unit 36c executes energy adjustment control (first adjustment control) for a first predetermined time using the conditions stored in the first adjustment control storage area 35b.

  In the present embodiment, as the first adjustment control, a control for setting the allowable driving capacity to a predetermined value for a first predetermined time is executed. The allowable operating capacity refers to an operating capacity (%) that is allowed during energy adjustment control. The operating capacity means the capacity of the air conditioners 40, 40... (More precisely, mainly the compressor) is operating with respect to the rated capacity of the air conditioners 40, 40. To do. For example, if the rated capacity of the air conditioners 40, 40... Is 100 kW and the allowable operation capacity is 40%, an operation in which the electric power exceeds 40 kW cannot be executed.

  In the present embodiment, the first predetermined time is 4 minutes. For the first two minutes, the operation is performed with an allowable driving capacity (for example, 40%) set so as to be surely lower than the value regardless of the amount of requested energy suppression. Thereafter, for 2 minutes, the allowable driving capacity is gradually increased within a range that does not exceed a target amount of second adjustment control described later. The length of the first predetermined time is an example. However, the first predetermined time is preferably within 10 minutes so as not to significantly impair the user's comfort.

  Explain further with examples. For example, the rated capacity of the air conditioners 40, 40... Is 100 kW, and the target value of the second adjustment control is 85 kW. In this case, as shown in FIG. 8, the permissible operating capacity is first reduced to 40% and maintained for 2 minutes, and then the permissible operating capacity is increased by 20% per minute to 80% permissible capacity over the next 2 minutes. Go.

  In the present embodiment, the information related to the first adjustment control stored in the first adjustment control storage area 35b is information related to the length of the first predetermined time and the intensity of energy consumption suppression. It is determined in advance so as to ensure a quick response to the suppression request and to respond reliably. However, the information regarding the first adjustment control does not need to be fixed, and may be updated by the user inputting from the input unit 33. Further, for example, the first adjustment control based on the time when the energy adjustment control is executed, the predicted power or the predicted power amount, the predicted energy price, the indoor environment, the environmental conditions, the operating status of the air conditioners 40, 40. The information regarding may be automatically updated.

  Moreover, the intensity | strength of the suppression memorize | stored may be managed not with permissible driving capability but with permissible power consumption [kW], for example. Further, the information is not a numerical value, and may be a control method such as thermo-off the outdoor unit, for example.

(2-2-6-4) Second adjustment control unit 36d
The second adjustment control unit 36d executes second adjustment control that differs depending on the magnitude relationship between the energy suppression request amount and a second energy suppression possible amount described later. However, in any case, control is performed such that the energy consumption does not exceed a target value described later. The second adjustment control is executed for a second predetermined time (suppression request time-first predetermined time during which the first adjustment control is executed).

(A) In the case where the second energy suppression possible amount ≦ the energy suppression required amount When the second energy suppression possible amount is equal to or less than the energy suppression required amount, that is, on the condition used for calculating the second energy suppression possible amount, When it is likely to be reduced below the required energy suppression amount, suppression control is executed under the conditions used for calculating the second energy suppression possible amount, with the second energy suppression possible amount described later as a target value.

  For example, if the condition is to reduce the current energy consumption by 10% over 30 minutes, the energy consumption of the air conditioners 40, 40... Is reduced by 10% compared to before the start of the second adjustment control. Two adjustment control is executed.

(B) When second energy suppression possible amount> energy suppression required amount When the second energy suppression possible amount is larger than the energy suppression required amount, that is, under the conditions used for calculating the second energy suppression possible amount, the maximum power If the energy suppression requirement amount cannot be reduced below the energy suppression requirement amount, the suppression control is executed using the energy suppression requirement amount as a target value and using the conditions in the second condition storage area 35h. The condition of the second condition storage area 35h is determined in advance so that the energy consumption can be reduced below the required energy suppression amount by using the condition.

(2-2-6-5) Calculation unit 36e
The calculation unit 36e calculates the first energy suppression possible amount using the condition stored in the first condition storage area 35c. The calculated first energy suppression possible amount is stored in the transmission storage area 35e together with the calculation condition.

  When the condition is the intensity of energy suppression, the first energy suppression possible amount is calculated as follows, for example. In this embodiment, for example, as shown in FIG. 4, a plurality of combinations of the control time length and the energy consumption reduction rate are stored as conditions.

  First, the calculation unit 36e calls the energy consumption (electric power) [kW] per unit time immediately before the calculation of the first energy adjustable amount from the operation state storage area 35a. At the same time, the calculation unit 36e calls the conditions stored in the first condition storage area 35c. Thereafter, the calculation unit 36e calculates the first energy suppression possible amount P1 for each condition. The 1st energy suppression possible quantity P1 is represented by the following formula | equation.

(Formula 2) P1 = p × (1-k)
Here, p represents the power [kW] immediately before the calculation of the first energy suppression possible amount, and k represents the energy consumption reduction rate [%]. Note that the predicted power stored in the predicted amount storage area 35g may be used for p instead of the power immediately before the calculation of the first energy suppression possible amount.

  The case where the electric power immediately before the calculation of the first energy suppression possible amount is used for the calculation of P1 will be described with specific examples.

  For example, it is assumed that the power immediately before the calculation of the first energy suppression possible amount called from the driving situation storage area 35a is 100 kW, and FIG. 4 is stored in the first condition storage area 35c. At this time, the first energy suppression possible amount P1 is calculated as 80 kW, 90 kW, and 95 kW for the control time of 30 minutes, 60 minutes, and 120 minutes, respectively.

  P1 may be weighted as in the following equation.

(Formula 3) P1 = p * (1-k) * m1 * m2 * ... * mN
Here, m1, m2,..., MN are, for example, the time when the energy adjustment control is performed, the predicted power, the predicted power amount, the predicted energy price, the state value of the indoor environment, the environmental condition, and the air conditioners 40, 40. Is a weighting factor relating to the operating state. The number of weighting factors may be one or plural.

  On the other hand, when the condition relates to a method of energy adjustment control, the first energy suppression possible amount is calculated as follows, for example.

  The calculation part 36e calls the control method memorize | stored in the 1st condition storage area 35c of air conditioner 40,40 ... as a condition, and calculates the 1st energy suppression possible amount which can be suppressed minimum. For example, the first energy suppression possible amount P1 can be expressed by Expression 4.

(Formula 4) P1 = Max (a1t × R1 + a2t × R2 +... + AXt × RX)
Here, R1, R2,... RX is the rated capacity [kW] of each of the X air conditioners 40, 40. aXt is determined by On / Off of an air conditioner (more precisely, an outdoor unit) in a certain time zone t, and is defined as 1 during On and 0 during Off.

  Specifically, the case where the control schedule of FIG. 5 is stored as a condition in the first condition storage area 35c will be described as an example.

  In FIG. 5, there are four time zones every 15 minutes. When (a1 × R1 + a2 × R2 +... + A7 × R7) is calculated for each time zone, 70 kW, 80 kW, 75 kW, and 75 kW are calculated. Since the maximum value is 80 kW, the first energy suppression possible amount P1 is calculated as 80 kW.

  Equation 4 may be weighted similarly to Equation 3. Description is omitted.

(2-2-6-6) Presentation unit 36f
The presentation unit 36f presents the management apparatus 10 with one or more first energy suppression possible amounts calculated by the calculation unit 36e along with the suppression possible time.

(2-2-6-7) Discriminator 36g
The determination unit 36g determines a condition when the first energy suppression possible amount corresponding to the energy suppression request amount distributed from the management device 10 is calculated. Specifically, information closest to the distributed information is selected from the information stored in the transmission storage area 35e, and the calculation condition of the corresponding first energy suppression possible amount is determined.

  Specifically, for example, it is assumed that information of 30 minutes / 80 kW, 60 minutes / 90 kW, and 120 minutes / 95 kW is stored in the transmission storage area 35 e as a combination of the suppression possible time and the first energy suppression possible amount. On the other hand, it is assumed that the delivered suppression request time and energy suppression request amount are 30 minutes / 75 kW. In this case, the controllable time and the control request time coincide with each other, and the first energy controllable amount and the energy control request amount that are 30 minutes / 80 kW are selected by the determination unit 36g. Further, the determination unit 36g determines the condition under which the first energy suppression possible amount of 80 kW is calculated from the information stored in the transmission storage area 35e.

(2-2-6-8) Recalculation unit 36h
The recalculation unit 36h calculates the second energy suppression possible amount under the same conditions as those determined by the determination unit 36g. The same condition as the condition determined by the determination unit 36g is a condition in which the condition at the time of calculating the second energy suppressible amount is reflected in the condition at the time of calculating the first energy suppressible amount corresponding to the required energy suppression amount. is there. Therefore, both conditions may not match.

  Specific examples will be described.

  For example, it is assumed that the first condition storage area 35c stores the conditions related to the energy consumption suppression rate shown in FIG. 9 and the outside air temperature is 35 ° C. when the first energy suppression possible amount is calculated. In this case, at the time of calculating the first energy suppression possible amount, the suppression rate of the energy consumption with respect to each control time is 20%, 10%, and 5%. On the other hand, for example, it is assumed that the outside temperature at the time of calculating the second energy suppression possible amount is 40 ° C. In this case, the suppression rate of energy consumption is 16%, 8%, and 4% for each control time.

  Therefore, when the management apparatus 10 selects the first energy suppression possible amount corresponding to the control time of 60 minutes and determines the energy suppression request amount based on the value for the presentation of the first energy suppression possible amount, the first The energy consumption suppression rate was 10% when calculating the energy suppressible amount, but 8% when calculating the second energy suppressible amount.

  In addition, the calculation method itself of the 2nd energy suppression possible amount is the same as that of the calculation part 36e.

  For example, as in the present embodiment, when the condition is an energy consumption suppression rate, the second energy suppression possible amount P2 is calculated by the following Expression 5 or Expression 6.

(Formula 5) P2 = p ′ × (1−k ′)
(Expression 6) P2 = p ′ × (1−k ′) × m1 ′ × m2 ′... × mN ′
Here, p ′ is the power [kW] immediately before the second energy suppression possible amount calculation. k ′ is the energy consumption suppression rate under the same conditions as those determined by the determination unit 36g. mN ′ is a weighting factor. If the weighting factor mN ′ in Equation 6 varies depending on the state at the time of calculation, the weighting factor mN ′ may also be different from the weighting factor mN at the time of calculating the first energy suppression possible amount.

(3) Control Process Performed by Energy Management System 100 FIG. 10 is a flowchart showing a flow of presentation of the first energy suppression possible amount in the control device 30 to the management device 10. FIG. 11 is a flowchart showing a flow of energy adjustment control processing in the control device 30. The processes shown in FIGS. 10 and 11 are independent of each other. Hereinafter, the flow of processing in the control device 30 that controls the air conditioners 40, 40... Will be described with reference to FIGS.

  First, FIG. 10 will be described.

  In this embodiment, step S101 is performed every day at 10 am. In step S101, the first energy suppression possible amount is calculated by the calculation unit 36e based on the power immediately before 10:00 am and the condition stored in the first adjustment control storage area 35b. Note that the predicted power calculated in step S103 may be used to calculate the first energy suppression possible amount, but in this case, step S103 is executed first, and the start time of step S101 is the same as that of step S103. After the end (for example, 10:10 am).

  In step S102, the first energy suppression possible amount is presented to the management apparatus 10 by the presentation unit 36f. At the same time, the calculated first energy suppression possible amount is stored in the transmission storage area 35e.

  In step S103, after 10:00 am (10:05 am in the present embodiment), the prediction unit 36b calls information from 10:00 am on the previous day to 10:00 am on the current day from the driving state storage area 35a, Predict power, power amount and power price from 10:00 to 10:00 am the next day. The predicted amount is stored in the predicted amount storage area 35g.

  If it is 10:00, S101 will be performed again.

  On the other hand, even if it is not 10:00 am, when there is a transmission request for the first energy suppression possible amount from the management device 10, the first energy suppression possible amount is calculated in step S106. Thereafter, in step S107, the presentation unit 36f presents the first energy suppression possible amount to the management device 10.

  When there is no transmission request, it waits until 10:00.

  Next, FIG. 11 will be described.

  In step S111, the communication unit 31 receives an energy consumption suppression request from the management device 10 together with the energy suppression request amount, and stores the request in the request storage area 35d. The timing of the suppression request is irregular.

  In step S112, the first adjustment control unit 36c immediately starts the first adjustment control based on the conditions in the first adjustment control storage area 35b. At this time, the start time of the energy adjustment control is stored in the control information storage area 35f.

  In step S113, based on the energy suppression request amount and the suppression request time distributed from the management apparatus 10, the determination unit 36g determines a calculation condition for the first energy suppression possible amount corresponding to the energy suppression request amount.

  In step S114, the recalculation unit 36h calculates the second energy suppression possible amount (P2 in FIG. 11) under the same conditions as those determined in step S113.

  In step S115, the time control unit 34 determines whether the first predetermined period has elapsed from the start of the first adjustment control, and determines the end of the first adjustment control.

  In step S116, the energy suppression request amount (D in FIG. 11) stored in the request storage area 35d is compared with the second energy suppression possible amount (P2).

  If the result of step S116 is the second energy suppression possible amount (P2) ≦ the energy suppression required amount (D), in step S117, the second energy suppression possible amount (P2) is set as the target value, and the end of the second predetermined time is reached. Until the second adjustment control is executed.

  On the other hand, if the second energy suppression possible amount (P2)> the energy suppression request amount (D), the second adjustment is made until the end of the second predetermined time in step S118 with the energy suppression request amount (D) as the target value. Control is executed.

  In S119 and S120, the energy adjustment control end time and the amount of power reduced through the first adjustment control and the second adjustment control are stored in the control information storage area 35f.

(4) Features (4-1)
In the present embodiment, the control device 30 controls the air conditioners 40, 40..., And includes a communication unit 31, a first adjustment control unit 36c, and a second adjustment control unit 36d. The communication unit 31 receives an energy suppression request from the management device 10 of the energy supplier that supplies energy to the equipment. The first adjustment control unit 36c suppresses the energy consumption of the air conditioners 40, 40,... With a predetermined intensity during the first predetermined time when the suppression request is received. The second adjustment control unit 36d suppresses the energy consumption with the intensity according to the suppression request for the second predetermined time after the first predetermined time has elapsed.

  Different energy adjustment control is executed immediately after receiving an energy suppression request and thereafter. Ensuring energy adjustment control that makes it possible to achieve both responsiveness immediately after receiving an energy suppression request, achieving the goal of suppressing energy consumption after ensuring responsiveness, and harmony of user comfort is achieved.

(4-2)
In the present embodiment, the communication unit 31 receives the energy suppression request amount together with the energy suppression request from the energy supplier management device 10. The first adjustment control unit 36c suppresses the energy consumption more than the energy suppression request amount. The energy suppression requirement amount is a target value of the energy consumption amount that should suppress the energy consumption amount per unit time below that.

  Immediately after receiving the suppression request, the energy consumption is suppressed more than the energy suppression request amount, thereby ensuring responsiveness to the request.

(4-3)
In the present embodiment, the calculation unit 36e that calculates the first energy suppression possible amount that can be suppressed by the air conditioners 40, 40... According to one or more conditions, and the first energy suppression possible amount are presented to the management device 10. A presentation unit 36f is further provided. The communication unit 31 receives a value based on one of the first energy suppression possible amounts from the management device 10 as the energy suppression request amount.

  When the management device 10 and the control device 30 communicate in both directions, the operation of the air conditioners 40, 40.

  Furthermore, when the management apparatus 10 is presented with a plurality of first energy suppression possible amounts, the energy supplier can have a range of choices in the energy suppression required amount.

(4-4)
In the present embodiment, the first adjustment control unit 36c suppresses energy most strongly in the first predetermined time immediately after the suppression request. Thereafter, the intensity of energy suppression is reduced until the end of the first predetermined time.

  As a result, in the first predetermined time, a time for strongly suppressing the energy consumption with the highest priority on responsiveness and a transition time for weakening the suppression of the energy consumption are provided. It becomes easy to smoothly shift from the first adjustment control for ensuring the responsiveness to the second adjustment control for achieving harmony between the achievement of the energy consumption suppression target and the user comfort.

(4-5)
In the present embodiment, the first predetermined time during which the first adjustment control is executed is 10 minutes or less.

  Here, by setting the first predetermined time to 10 minutes or less, even if energy adjustment control specialized in ensuring responsiveness is executed for the first predetermined time, the user's comfort is hardly impaired.

(5) Modification (5-1) Modification 1A
The calculation unit 36e and the recalculation unit 36h use the formula 2, the formula 3, the formula 5 or the formula 6 to calculate the first energy suppression possible amount or the second energy suppression possible amount to the power (kW) immediately before the calculation. Instead, for example, an average value of energy consumption per unit time for 30 minutes immediately before calculation may be used. By referring to the driving situation for a certain period, it is possible to calculate an energy adjustable amount closer to the actual value.

(5-2) Modification 1B
The control device 30 may not include the presentation unit 36f. In this case, the suppression request amount is distributed according to a contract determined between the power company and the contract between the power company and the user. The energy adjustment control in this case is executed as follows, for example.

  During the first predetermined time immediately after receiving the suppression request, the first adjustment control unit 36c executes energy adjustment control in the same manner as in the first embodiment. The calculation unit 36e calculates the first energy suppression possible amount and compares it with the presented energy suppression request amount. Then, the calculation unit 36e finds a condition in which the first energy suppression possible amount <the energy suppression required amount can be satisfied from the first condition storage area 35c. The second adjustment control unit 36d executes energy adjustment control using the found condition after the end of the first adjustment control. In this case, the determination unit 36g and the recalculation unit 36h are also unnecessary.

(5-3) Modification 1C
As shown in FIG. 12, the control device 30 may include a responsiveness determination unit 36i and a first predetermined time adjustment unit 36j, and may change the length of the first predetermined time.

  More specifically, the responsiveness determination unit 36i determines whether the intensity of energy suppression by the first adjustment control unit has reached a predetermined intensity based on the information in the driving situation storage area 35a. Thereafter, the first predetermined time adjustment unit 36j adjusts the first predetermined time to a necessary and sufficient length that can reach the predetermined intensity based on the determination result of the responsiveness determination unit. In this case, the driving condition grasping unit 36a communicates with the air conditioners 40, 40,... And the power meter 7 at a shorter interval, for example, an interval of 30 seconds, rather than every 5 minutes, and collects information. The first predetermined time is changed by, for example, the first predetermined time adjusting unit 36j updating the first predetermined time stored in the first adjustment control storage area 35b. Also, instead of storing the first predetermined time as a numerical value in the first adjustment control storage area 35b, the first predetermined time adjustment unit 36j determines that the responsiveness determination unit 36i determines that the responsiveness is ensured. You may order the 1st adjustment control part 36c to cancel | release 1st adjustment control so that 1 adjustment control may be complete | finished.

  By making the first predetermined time as short as possible, the user's comfort is less likely to be impaired.

(5-4) Modification 1D
The control device 30 may include a distribution unit 36k as shown in FIG.

  In the first embodiment, when the required energy suppression amount exceeds the second energy suppression possible amount, the second adjustment control is executed based on the condition stored in the second condition storage area 35h.

  On the other hand, the distribution unit 36k separately uses the energy consumption of the difference ΔP (= D−P2) between the energy suppression request amount (D) and the second energy suppression possible amount (P2) separately from the air conditioners 40, 40. Perform distribution of restraints. Thus, more appropriate energy adjustment control is realized separately for the air conditioners 40, 40.

  As a distribution method, for example, ΔP may be distributed to the air conditioners 40, 40... (More accurately, outdoor units) by equal amounts or with a predetermined weight.

  In addition, the distribution unit 36k determines the user's pleasure / discomfort using, for example, the degree of deviation from the set temperature based on the information in the operation status storage area 35a, and the energy consumption amount varies depending on the indoor unit or the outdoor unit. The suppression amount may be distributed. In addition, in order to satisfy the energy suppression requirement amount, it is always determined to be equal to or greater than ΔP when the respective distribution amounts (including those that increase) are integrated. Specifically, the distribution unit 36k instructs the second adjustment control unit 36d to increase, for example, the rate of suppression of energy consumption for the outdoor unit in charge of the space where the user's comfort can be maintained. In addition, the distribution unit 36k instructs the indoor unit in charge of the space to control to increase the set temperature (at the time of cooling).

  In addition, for example, priorities are given to the air conditioners 40, 40,... In the order of least influence on the user's comfort, and the air conditioners 40, 40,. By doing so, ΔP may be distributed.

(5-5) Modification 1E
The first adjustment control unit 36c and the second adjustment control unit 36d do not have to execute the energy adjustment control when there is a possibility that the comfort cannot be ensured by executing the energy adjustment control. For example, when the measured values of temperature and humidity do not reach the set values and are deviating from the set values more than predetermined, even though they are currently operating with a driving capacity of 100% Does not have to execute the energy adjustment control. In addition, for example, the energy adjustment control command may not be executed for a certain period of time after the start of operation.

(5-6) Modification 1F
The air conditioners 40, 40... Are examples of equipment, and for example, lighting, ventilation fans, and combinations thereof may be controlled by the control device 30. Thereby, it is possible to apply this control apparatus with respect to a wide installation. At this time, the influence on the indoor environment of the user being within the allowable range means that when the equipment is lighting, for example, the illuminance is maintained within the allowable range. In the case of a ventilation fan, for example, it means that the ventilation amount is maintained in an allowable range.

  Therefore, for example, the conditions of the first condition storage area 35c may be set for the illuminance and the ventilation amount.

(5-7) Modification 1G
In the first embodiment, the condition of the second adjustment control is automatically selected. However, the user may select the condition of the second adjustment control.

  For example, when the suppression request is delivered, instead of calculating the second energy suppression possible amount, the calculation unit 36e calculates the first energy suppression possible amount for each of the plurality of conditions stored in the first condition storage area 35c. . The calculated first energy suppression possible amount is presented to the output unit 32. The user sees this result and selects the condition and the energy suppression possible amount that are closest to his / her needs while satisfying the required energy suppression amount, and inputs the selected condition from the input unit 33. The second adjustment control unit 36d executes second adjustment control based on the conditions input by the user.

Second Embodiment
Next, an energy management system 200 according to the second embodiment will be described (see FIG. 14). Since there are many common points with the first embodiment, only differences from the first embodiment will be described below.

(1) Overall Configuration of Energy Management System 200 FIG. 14 shows an energy management system 200 according to this embodiment. In the energy management system 200, power is supplied from S and T as the power company 1 to A and B as the property 2. Although two electric power companies, S and T, are illustrated, the number of electric power companies is not limited to two. The number of electric power companies may be more than two or one. The properties A and B are the same as in the first embodiment. The system configuration is the same except for the management devices 210 and 210 and the control devices 230 and 230.

  In the second embodiment, the management devices 210 and 210 of the power companies S and T are connected to the control devices 230 and 230 of the property A and B via the Internet 80a at predetermined time intervals (in this embodiment, one day). At intervals, energy unit price information is transmitted. For example, the management devices 210 and 210 distribute unit price information from 9:00 am on that day to 9:00 am on the next day at 7:00 am. The unit price information is information indicating an energy unit price for each time zone. The energy unit price varies depending on the time zone, and is usually determined by the electric power companies S and T so that the energy unit price is high when the energy demand is high and the energy unit price is low when the energy demand is low. The electric power companies S and T do not force the adjustment of energy consumption for the properties A and B by distributing the unit price information. However, the distribution of unit price information is a kind of energy suppression request because the properties A and B are motivated to adjust energy consumption.

(2) Configuration of Each Device Hereinafter, the management devices 210 and 210 and the control devices 230 and 230 included in the energy management system 200 will be described.

(2-1) Configuration of Management Device 210 FIG. 15 shows a schematic configuration diagram of the management device 210. Hereinafter, although the management apparatus 210 installed in the electric power company S is demonstrated, the management apparatus 210 installed in the electric power company T is also the same structure.

  The management device 210 includes a communication unit 211, a display unit 212, an input unit 213, a storage unit 214, and a control unit 215. Here, 211, 212, and 213 have the same configuration as 11, 12, and 13 of the first embodiment. Therefore, hereinafter, the storage unit 214 and the control unit 215 will be described.

(2-1-1) Storage unit 214
The storage unit 214 is mainly composed of a hard disk. The storage unit 214 stores unit price information of energy transmitted to the properties A and B. The unit price information may be different between the properties A and B depending on the contract contents.

(2-1-2) Control unit 215
The control unit 215 mainly includes a CPU, a ROM, and a RAM. The control unit 215 reads out and executes the program stored in the storage unit 214, thereby causing the communication unit 211 to communicate with each of the properties A and B at a predetermined time interval (one day interval in the present embodiment). Output unit price information for each time zone.

(2-2) Configuration of Control Devices 230 and 230 FIG. 16 shows a schematic configuration diagram of the control devices 230 and 230. Hereinafter, the control device 230 installed in the property A will be described, but the control device 230 installed in the property B has the same configuration.

  The control device 230 includes a communication unit 231, an output unit 232, an input unit 233, a time management unit 234, a storage unit 235, and a control unit 236. Here, 233 and 234 have the same configuration as 33 and 34 in the first embodiment. Therefore, the communication unit 231, the output unit 232, the storage unit 235, and the control unit 236 will be described below.

(2-2-1) Communication unit 231
The communication unit 231 is mainly a network interface that enables the control device 230 to be connected to the Internet 80a. The communication unit 231 receives unit price information output from the management devices 210 and 210 of the power companies S and T via the Internet 80a at a predetermined time interval (one day interval in the present embodiment). The received information is stored in a unit price storage area 235j described later.

(2-2-2) Output unit 232
The output unit 232 is mainly composed of a display. In the output unit 232, the operation mode of the air conditioners 40, 40,... (For example, ON / OFF of the air conditioner, operation mode (cooling mode / heating mode), wind direction, air volume, suction temperature, and set temperature) is set. A screen is displayed. Further, the current power, the amount of power actually reduced by energy adjustment control stored in the control information storage area 235f described later, and the first and second energy adjustable amounts calculated by the calculation unit 236e and the recalculation unit 236h , And their corresponding energy prices are displayed. Further, a predicted power, a predicted power amount, a predicted energy price, and the like stored in a predicted amount storage area 235g and a predicted price storage area 235l described later are also displayed.

(2-2-3) Storage unit 235
The storage unit 235 is mainly composed of a hard disk. The storage unit 235 stores a program that can be read and executed by the control unit 236 described later. In addition, the storage unit 235 includes an operation status storage area 235a, a first adjustment control storage area 235b, a first condition storage area 235c, a request storage area 235d, a first possible amount storage area 235e, a control information storage area 235f, and a predicted amount storage. An area 235g, a second condition storage area 235h, a candidate time zone storage area 235i, a unit price storage area 235j, a cheapest unit price storage area 235k, and a predicted price storage area 235l are provided. 235a, 235b, 235f, and 235g have the same configuration as 35a, 35b, 35f, and 35g of the first embodiment. Here, the first condition storage area 235c, the request storage area 235d, the first possible amount storage area 235e, the second condition storage area 235h, the candidate time zone storage area 235i, the unit price storage area 235j, the cheapest unit price storage area 235k, and The predicted price storage area 235l will be described.

(2-2-3-1) First condition storage area 235c
The first condition storage area 235c stores information used by the calculation unit 236e and the recalculation unit 236h, which will be described later, to calculate the first energy suppression possible amount and the second energy suppression possible amount.

  The summary regarding the contents of the conditions is the same as that of the first condition storage area 35c of the first embodiment.

(2-2-3-2) Request storage area 235d
In the present embodiment, a maximum power amount [kWh / hour] that is allowed to be used for a predetermined period (for example, 1 hour) is stored in the request storage area 235d as an energy suppression request amount. For example, in the request storage area 235d, an energy suppression request amount is stored in which the maximum power amount per unit time is 80 [kWh / hour] or less during energy consumption suppression.

  However, the energy suppression request amount is not limited to the maximum power amount [kWh / hour] that is allowed to be used in a predetermined period (for example, 1 hour), and is allowed to be used in the maximum power [kW] or a predetermined period, for example. It may be the maximum energy price [yen / hour] corresponding to the maximum electric energy.

  Further, although the energy suppression request amount is a fixed value in the present embodiment, the energy suppression request amount may be updated by a user input from the input unit 233. Moreover, you may update the set energy suppression request | requirement amount using the 1st energy suppression possible amount mentioned later.

(2-2-3-3) First possible amount storage area 235e
In the first possible amount storage area 235e, a first energy suppression possible amount calculated by a calculation unit 236e described later is stored. The first energy suppression possible amount will be described later.

(2-2-3-4) Second condition storage area 235h
The second condition storage area 235h stores conditions used by a second adjustment control unit 36d described later. The condition of the second condition storage area 235h is used when a second energy suppression possible amount described later is smaller than the energy suppression required amount. The condition of the energy adjustment control stored in the second condition storage area 235h is determined in advance so that the energy suppression request amount is the target, and in this embodiment, the power amount for a predetermined period is lower than the energy suppression request amount. . That is, conditions for suppressing the maximum power, the amount of power for a predetermined period, and the like are stored as compared with the first condition storage area 235c.

(2-2-3-5) Candidate time zone storage area 235i
The candidate time zone storage area 235i stores a candidate time zone in which the energy adjustment control of the air conditioners 40, 40,...

(2-2-3-6) Unit price storage area 235j
In the unit price storage area 235j, unit price information for each time zone received from the power company management devices 210 and 210 received by the communication unit 231 is stored. In addition, since the name of the power company that delivered the unit price information is also delivered along with the unit price information, even when unit price information is received from multiple power companies, it is possible to determine from which power company the unit price received. Remembered.

(2-2-3-7) Lowest unit price storage area 235k
The cheapest unit price storage area 235k stores unit price information of the lowest price created by the determination unit 236f described later.

(2-2-3-8) Forecast price storage area 235l
The predicted price storage area 235l stores information on the predicted energy price every predetermined time (in this embodiment, every hour) created by the determination unit 236f described later.

(2-2-4) Control unit 236
The control unit 236 mainly includes a CPU, a ROM, and a RAM. As shown in FIG. 16, the control unit 236 reads and executes the program stored in the storage unit 235, thereby mainly operating state grasping unit 236a, prediction unit 236b, first adjustment control unit 236c, It functions as the second adjustment control unit 236d, the calculation unit 236e, the determination unit 236f, the supplier company instruction unit 236g, and the recalculation unit 236h. 236a and 236c have the same configuration as 36a and 36c of the first embodiment, respectively. Therefore, the prediction unit 236b, the second adjustment control unit 236d, the calculation unit 236e, the determination unit 236f, the supplier company instruction unit 236g, and the recalculation unit 236h will be described below.

(2-2-4-1) Prediction unit 236b
In the present embodiment, for example, the energy consumption is predicted for the energy at 9:05 am. Other points are the same as those of the prediction unit 36b of the first embodiment.

(2-2-4-2) Second adjustment control unit 236d
The second adjustment control unit 236d executes different energy adjustment control (hereinafter referred to as second adjustment control) based on the result of the magnitude comparison between the energy suppression request amount and a second energy suppression possible amount described later. However, in any case, control is performed such that the energy consumption does not exceed a target value described later. The second adjustment control is executed for a second predetermined time (the length of the candidate time zone—the first predetermined time during which the first adjustment control is executed).

(A) In the case where the second energy suppression possible amount ≦ the energy suppression required amount When the second energy suppression possible amount is equal to or less than the energy suppression required amount, that is, on the condition used for calculating the second energy suppression possible amount, When it is likely to be reduced below the required energy suppression amount, the suppression control is executed under the conditions used for calculating the second energy suppression possible amount with the second energy suppression possible amount as a target value.

(B) When second energy suppression possible amount> energy suppression required amount When the second energy suppression possible amount is larger than the energy suppression required amount, that is, under the conditions used for calculating the second energy suppression possible amount, the maximum power If the energy suppression requirement amount cannot be reduced below the energy suppression requirement amount, the suppression control is executed using the energy suppression requirement amount as a target value and using the conditions of the second condition storage area 235h.

(2-2-4-3) Calculation unit 236e
The calculation unit 236e calculates the first energy suppression possible amount. The first energy suppression possible amount is the amount targeted by the energy suppression request amount. That is, in the present embodiment, the maximum electric energy allowed for one hour [kWh / hour]. On the other hand, for example, if the required amount of energy suppression is an allowable maximum power, the first energy suppression possible amount is also the maximum power [kW]. Further, for example, when the required energy suppression amount is the maximum power price allowed for one hour, the first energy suppression possible amount is also the maximum power price [yen / hour] allowed for one hour.

  When the required energy suppression amount is the maximum power amount allowed for one hour as in the present embodiment, the first energy suppression possible amount P1 is expressed by the following equation, for example. The condition of the first condition storage area 35c is a reduction rate of energy consumption, and is automatically determined according to the length of a candidate time zone described later.

(Expression 7) P1 [kWh / hour] = p × 1 [hour] × (1-k) ÷ 1 [hour]
Here, p represents power [kW] immediately before calculation of the first energy suppression possible amount, and k represents a reduction rate [%] of energy consumption.

  Further, for example, when the required energy suppression amount is the maximum power price allowed for one hour, the first energy suppression possible amount P1 is expressed by the following equation, for example.

(Formula 8) P1 [yen / hour] = Σ (p × (1−k) × cn × ΔTn)
Here, p is the power [kW] immediately before the first energy suppression possible amount calculation, k is the energy consumption reduction rate [%], and cn is the case where the energy unit price fluctuates for each time zone during one hour. , Energy unit price [yen / kWh] for the nth time zone, and ΔTn is the length [hour] of the nth time zone.

  Note that p may use the predicted power predicted by the prediction unit 236b instead of the power immediately before the calculation of the first energy suppression possible amount P1.

  The calculated first energy suppression possible amount is displayed on the output unit 232, so that the user can know in advance how much the energy suppression request amount is likely to be suppressed. Further, for example, the energy suppression request amount may be updated using the first energy suppression possible amount.

  The gist of the calculation unit 36e according to the other first embodiment also applies to the calculation unit 236e.

(2-2-4-4) Determination unit 236f
The determination unit 236f mainly performs two processes, that is, determination of a candidate time zone in which energy adjustment control is to be performed and calculation of a predicted energy price.

  The candidate time zone is determined as follows.

  The determination unit 236f uses the lowest unit price information created from the unit price information for one or more time zones received by the communication unit 231 to adjust the energy within a predetermined period (one day in the present embodiment). A candidate time zone in which control is to be executed is determined.

  The cheapest unit price information is information determined by the determination unit 236f as described below and stored in the cheapest unit price storage area 235k.

  The determination unit 236f compares the energy unit prices of the electric power companies when a plurality of unit price information exists in the same time zone, and determines the lowest unit price (lowest energy unit price) for each time zone. The determined lowest unit price information for each time zone is stored in the lowest unit price storage area 235k together with the name of the power company providing the lowest unit price as shown in FIG.

  In addition, in this embodiment, the determination unit 236f determines a time zone in which the energy unit price is maximum from among the lowest unit price information throughout the day as a candidate time zone.

  However, the candidate time zone is not limited to the time zone in which the energy unit price is maximum. For example, the determination unit 236f may select a time zone in which the energy unit price exceeds a predetermined value and determine it as a candidate time zone. Note that the predetermined value may be a fixed value, or may be a value that is appropriately input by the user from the input unit 233 and updated. The predetermined value may be a value that is appropriately calculated by the determination unit 236f from unit price information such as an average value or an intermediate value of energy unit prices.

  Hereinafter, a method for determining a candidate time zone will be described in detail by taking as an example a case where a time zone in which the energy unit price is maximum within a predetermined period is set as the candidate time zone. Here, a case where there are a plurality of electric power companies will be described.

  First, in the present embodiment, the determination unit 236f reads unit price information of a plurality of energy from 9:00 am on the current day to 9:00 am on the next day, which is present in the unit price storage area 235j, at 9:00 am. Then, the energy unit price of each electric power company is compared for each time zone, and the cheapest unit price information as shown in FIG. 17 is created and stored in the lowest unit price storage area 235k.

  In addition, the determination unit 236f determines, as a candidate time zone, a time zone in which the energy unit price is maximum during a predetermined period based on the information stored in the cheapest unit price storage area 235k. For example, in the example of FIG. 17, the determination unit 236f is a time zone in which the energy unit price is the maximum from 13:00 to 16:00 on the current day within a predetermined period (the period from 9 am to 9 am on the next day). Determines from 13:00 to 16:00 on that day as a candidate time zone.

  Next, the calculation process of the predicted energy price performed by the determination unit 236f will be described.

  The determination unit 236f calculates the product of the unit price information stored in the cheapest unit price storage area 235k and the power amount predicted by the prediction unit 236b. As a specific process, the determination unit 236f reads the unit price information stored in the cheapest unit price storage area 235k and the information on the predicted power amount stored in the predicted amount storage area 235g, and calculates the product by time. . The created information is stored in the predicted price storage area 235l. FIG. 18 is an example of information stored in the predicted price storage area 235l.

  By outputting the predicted energy price calculated in this way to the output unit 232, the user can know the price of energy predicted in advance.

  Further, the predicted energy price may be used for determining the candidate time zone. For example, in FIG. 18, you may determine from 13:00 to 15:00 when a prediction energy price becomes the maximum as a candidate time slot | zone.

(2-2-4-5) Supply company instruction section 236g
Based on the data stored in the cheapest unit price storage area 235k, the supply company instruction unit 236g gives an instruction to a switchboard (not shown) to purchase power from the cheapest power supply company according to time.

(2-2-4-6) Recalculation unit 236h
The recalculation unit 236h calculates the second energy suppression possible amount under the conditions stored in the first condition storage area 235c.

  The calculation method is the same as that of the calculation unit 236e.

(3) Control Process Performed by Energy Management System 200 FIG. 19 is a flowchart mainly showing a flow of determination of candidate time zones in the control device 230. FIG. 20 is a flowchart showing the flow of processing of energy adjustment control in the control device 230. The processes shown in FIGS. 19 and 20 are independent of each other. Hereinafter, the flow of processing in the control device 30 that controls the air conditioners 40, 40... Will be described with reference to FIGS.

  First, FIG. 19 will be described.

  In this embodiment, step S201 is performed every day at 9:00 am. In step S201, the determination unit 236f reads unit price information from 9:00 am on the current day to 9:00 am on the next day from the unit price storage area 235j.

  The unit price information is distributed from the management devices 210 and 210 of one or more power companies S and T to the control device 230 of the property A at a predetermined time interval (one day interval in this embodiment). In the present embodiment, unit price information from 9:00 am on the current day to 9:00 am on the next day is distributed at 7:00 am. The distributed unit price information is stored in the unit price storage area 235j.

  In step S202, the determination unit 236f compares the energy unit price of each electric power company for each time zone based on the energy unit price information read in step S201, and determines the cheapest unit price for each time zone. When there is only one electric power company, the distributed unit price information is determined as the lowest unit price information as it is. The lowest unit price for each time zone is stored in the lowest unit price storage area 235k together with the name of the electric power company that presented the lowest unit price.

  In step S203, after 9 am (9:05 am in the present embodiment), the prediction unit 236b reads the past energy consumption from the operating state storage area 235a, and for a predetermined period (9 am on the current day in the present embodiment). Time-by-hour power and power amount prediction from the hour to the next day at 9:00 am is executed. The predicted power and the power amount are stored in the predicted amount storage area 235g.

  In step S204, the determination unit 236f uses the information on the lowest unit price information in the lowest unit price storage area 235k and the predicted power amount in the predicted amount storage area 235g to calculate the product of the unit price for each hour and the predicted power amount. Ask. As a result, for example, a table of predicted energy prices for each hour as shown in FIG. 18 is created. A table of predicted energy prices is stored in the predicted price storage area 235l.

  In step S205, the determination unit 236f determines a candidate time zone in which the energy unit price is the maximum in the predetermined period from 9 am on the current day to 9 am on the next day. For the determination, the lowest unit price information stored in the lowest unit price storage area 235k is used. The candidate time zone is not limited to one within the predetermined period. The start time and end time of the determined candidate time zone are stored in the candidate time zone storage area 235i. Instead of the energy unit price, the predicted energy amount stored in the predicted amount storage area 235g or the predicted energy price stored in the predicted price storage area 235l may be used for determining the candidate time zone.

  In step S206, the calculation unit 236e calculates the first energy suppression possible amount called from the first condition storage area 235c. The calculated first energy suppression possible amount is output to the output unit 232. For the calculation of the first energy suppression possible amount, for example, the predicted power calculated by the prediction unit 236b may be used instead of the power immediately before the calculation.

  In addition, the user can grasp | ascertain the standard of energy suppression possible amount achievement based on the output of 1st energy suppression possible amount. In addition, when the required amount of suppression energy suppression can be updated, the required amount of energy suppression may be updated with reference to the output.

  In step S207, the time of the time management unit 234 is used to determine whether the time has reached 9:00 am. When the time is 9:00 am, step S201 is executed, and the process waits until then.

  However, when the communication unit 231 receives an emergency change of energy unit price, the operations of steps S201, S202, S204, S205, and S206 are performed in steps S209, S210, S211, S212, and S213, respectively. Run. In step S209 to step S213, the time from the emergency unit price delivery reception time to 9:00 am the next time is set as a candidate time zone determination target.

  Next, FIG. 20 will be described.

  In step S221, the recalculation unit 236h uses the current time of the time management unit 234 and the information stored in the candidate time zone storage area 235i to determine whether the candidate time zone start time is reached within 5 minutes. Determine.

  In step S222, the recalculation unit 236h calculates the second energy suppression possible amount (P2 in FIG. 20) with reference to the driving situation storage area 235a and the first condition storage area 235c. In addition, instead of the power immediately before the calculation, the predicted power calculated by the prediction unit 236b may be used for calculating the first energy suppression possible amount.

  In step S223, the first adjustment control unit 236c determines whether the candidate time zone has reached the start time using the current time of the time management unit 234 and the information stored in the candidate time zone storage area 235i. If it has reached, the first adjustment control is immediately started based on the condition of the first adjustment control storage area 235b in step S224. At this time, the start time of the energy adjustment control is stored in the control information storage area 235f.

  In step S225, the end of the first adjustment control is determined.

  In step S226, the energy suppression request amount (D in FIG. 20) in the request storage area 235d is compared with the second energy suppression possible amount (P2) calculated by the recalculation unit 236h, and the energy adjustment of the second adjustment control unit 236d is performed. Determine the control content.

  If the result of step S226 is the second energy suppression possible amount (P2) ≦ the energy suppression required amount (D), in step S227 the second energy suppression possible amount (P2) is set as the target value and the end of the second predetermined time is reached. Until the second adjustment control is executed.

  On the other hand, the second energy suppression possible amount (P2)> the energy suppression required amount (D), and the second adjustment control is executed until the end of the second predetermined time with the energy suppression required amount (D) as the target value in step S218. Is done.

  In S229 and S230, the energy adjustment control end time and the electric energy reduced through the first adjustment control and the second adjustment control are stored in the control information storage area 235f.

(4) Features (4-1)
In this embodiment, an energy unit price is received as an energy suppression request. Different energy adjustment control is executed immediately after receiving an energy suppression request and thereafter. Energy adjustment control that facilitates both ensuring responsiveness immediately after receiving an energy suppression request, achieving the goal of suppressing energy consumption after ensuring responsiveness, and harmonizing user comfort is facilitated.

  In addition, since an electric power company sets a high energy unit price in a time zone in which it is desired to suppress energy, “immediately after receiving an energy suppression request” means immediately after an increase in energy unit price.

(5) Modified Examples The gist of modified examples 1A, 1C, 1D, 1E, 1F, and 1G according to the first embodiment also applies to the second embodiment.

DESCRIPTION OF SYMBOLS 1 Electric power company 2 Property 6 Power supply 7 Electric power meter 10 Management apparatus 30,230 Control apparatus 31,231 Communication part 32,232 Output part 33,233 Input part 36c, 236c 1st adjustment control part 36d, 236d 2nd adjustment control part 36e , 236e Calculation unit 36f Presentation unit 36i Responsiveness discrimination unit 36j First predetermined period adjustment unit 36k Distribution unit 40 Air conditioner 41 Outdoor unit 42 Indoor unit 80a Internet 80b Dedicated control line 100, 200 Energy management system

JP-A-2005-107901

Claims (7)

A control device (30, 230) for controlling the equipment (40),
From the energy supplier's management device (10, 210) that supplies energy to the facility equipment, a reception unit (31, 231) that receives an energy suppression request;
A first adjustment control unit (36c, 236c) that suppresses the energy consumption of the facility device at a predetermined intensity during a first predetermined time when the suppression request is received;
A second adjustment control unit (36d, 236d) that suppresses the energy consumption at an intensity according to the suppression request for a second predetermined time after the first predetermined time has elapsed;
A control device comprising: The reception unit (31) receives an energy suppression request amount together with the energy suppression request from the management device (10),
The first adjustment control unit (36c) suppresses the energy consumption more than the required energy suppression amount.
The control device (30) according to claim 1. A calculation unit (36e) that calculates a first energy suppression possible amount that can be suppressed by the facility device according to one or more conditions;
A presentation unit (36f) for presenting the first energy suppression possible amount to the management device;
Further comprising
The reception unit receives a value based on one of the first energy suppression possible amounts from the management device as the energy suppression request amount.
The control device according to claim 2. A determination unit (36g) for determining the condition at the time of calculating the first energy suppression possible amount corresponding to the received energy suppression request amount when receiving the suppression request;
A recalculation unit (36h) for calculating a second energy suppression possible amount under the same condition as the condition determined by the determination unit;
When the energy suppression request amount is compared with the second energy suppression possible amount, and the energy suppression request amount is greater, the energy consumption of the difference between the energy suppression request amount and the second energy suppression possible amount A distribution unit (36k) for allocating the suppression to the equipment,
Further comprising
The control device according to claim 3. The first adjustment control unit suppresses energy most strongly in the first predetermined time immediately after the suppression request, and then weakens the intensity of energy suppression until the end of the first predetermined time.
The control device according to claim 1. A responsiveness determining unit (36i) for determining whether the intensity of energy suppression by the first adjustment control unit has reached the predetermined intensity;
A first predetermined time adjustment unit (36j) that adjusts the first predetermined time to a necessary and sufficient length capable of reaching the predetermined intensity based on the determination result of the responsiveness determination unit.
Further comprising
The control device according to any one of claims 1 to 5. The first predetermined time is 10 minutes or less;
The control device according to any one of claims 1 to 6.

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