JP7018585B2 - Monitoring method, program and demand monitoring system - Google Patents

Description

The present disclosure relates generally to monitoring methods, programs and demand monitoring systems, and more particularly to monitoring methods, programs and demand monitoring systems that predict the amount of power used in a facility.

Conventionally, when an alert indicating that the maximum demand power (power consumption) is imminent or has reached the set value (target demand value) within a unit time (demand time limit) is received from the power demand device, the unit is according to the content of the alert. There is known a demand controller that switches the operation so that the maximum power consumption amount in time does not exceed the set value (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2017-225262

By the way, in Patent Document 1, when the maximum demand power is imminent or reaches the set value, the operation is switched so that the maximum demand power amount does not exceed the set value. In this case, the timing of control to prevent the maximum demand power amount from exceeding the set value may be delayed. As a result, the maximum power demand may exceed the set value.

The present disclosure has been made in view of the above problems, and an object of the present invention is to provide a monitoring method, a program, and a demand monitoring system that can take measures to suppress an increase in power consumption at an earlier timing.

The monitoring method according to one aspect of the present disclosure is used in a demand monitoring system that monitors the amount of electric power used in a facility and performs demand control. The monitoring method includes a singular point prediction step and an electric energy prediction step. The singular point prediction step predicts the presence or absence of a singular point related to a change in power consumption in the demand control . When the singularity prediction step determines that the singularity exists, the electric energy prediction step predicts the facility electric energy based on the electric energy obtained based on the singularity. In the singularity prediction step, among the actual values of the predetermined period, a plurality of actual values in the same time zone as the current demand time period are used, and in the demand time period including the present time, in the past after the measurement time corresponding to the present time. The ratio of the singular point is determined, and the determined ratio is used to determine whether or not the singular point is present after the measurement time corresponding to the present time.

The program according to one aspect of the present disclosure is a program for causing a computer to execute the monitoring method.

The demand monitoring system according to one aspect of the present disclosure monitors the amount of electric power used in the facility and performs demand control. The demand monitoring system includes a singular point prediction unit and a power quantity prediction unit. The singular point prediction unit predicts the presence or absence of a singular point related to a change in power consumption in the demand control . When the singularity prediction unit determines that the singularity exists, the electric energy prediction unit predicts the electric energy of the facility based on the electric energy obtained based on the singularity. The singularity prediction unit uses a plurality of actual values in the same time zone as the current demand time zone among the actual values of the predetermined period, and in the demand time period including the present time, in the past after the measurement time corresponding to the present time. The ratio of the singular point is obtained, and the obtained ratio is used to determine whether or not the singular point is present after the measurement time corresponding to the present time.

According to the present disclosure, it is possible to take measures to suppress the increase in power consumption at an earlier timing.

FIG. 1 is a diagram illustrating a configuration of a demand monitoring system according to an embodiment of the present disclosure. FIG. 2 is a diagram illustrating a configuration of a management system including the same demand monitoring system. FIG. 3 is a diagram illustrating the operation of the same demand monitoring system.

The embodiments and modifications described below are merely examples of the present disclosure, and the present disclosure is not limited to the embodiments and modifications. Other than the following embodiments and modifications, various changes can be made according to the design and the like as long as they do not deviate from the technical idea of the present disclosure.

(Embodiment)
Hereinafter, the demand monitoring system, the monitoring method, and the program according to the present embodiment will be described with reference to FIGS. 1 to 3.

(1) Overview In the present embodiment, a demand monitoring system 1 having a function of controlling equipment installed in a facility based on a power amount measured in the facility (facility power amount) and a predetermined target demand value. Will be explained.

As shown in FIG. 2, the management system 2 of the present embodiment includes a monitoring device 10 as a demand monitoring system 1, a measuring device 21, and a control device 25. The term "facility" as used herein means a facility such as a building that receives electric power, and is used not only from a facility that receives electric power from an electric power company such as an electric power company but also from a power generation facility such as a solar power generation facility. Includes facilities that receive electricity.

The demand monitoring system 1 predicts the amount of power (facility power amount) used in the facility 5 in the demand time period (for example, 30 minutes), and controls the device 50 capable of demand control according to the predicted result. I do.

The management system 2 provided in the facility 5 acquires power usage data (power consumption) in the facility 5. Specifically, the management system 2 acquires the amount of power used as usage data for the plurality of branch circuits in the facility 5. A device 50 (electrical device) is connected to each of the plurality of branch circuits in the facility 5. The device 50 is, for example, a device provided in the facility 5 and is an electric device that uses electric power. The equipment 50 is, for example, lighting equipment 50a to 50c, air conditioning equipment 50d to 50e, and the like.

The demand monitoring system 1 includes actual values of past power consumption in facility 5, operation schedule of equipment 50 in demand time period including measurement time, correlation information showing correlation between outside air temperature and power consumption, and event information. At least one of them is acquired as additional information. Details of the operation schedule, correlation information, and event information will be described later.

The demand monitoring system 1 predicts the facility electric energy, which is the total amount of electric energy used in the facility 5 in the demand time period, based on the total electric energy used and the additional information acquired from each branch circuit. When the demand monitoring system 1 determines that the predicted facility power consumption exceeds the target demand value, the demand monitoring system 1 is provided with respect to the device 50 provided in the facility 5 so that the power consumption within the demand time limit is reduced. To control. For example, when the device 50 to be controlled is a lighting device, the lighting device is turned off. Here, the demand time limit is a period determined by an agreement with the power supply side, and is a period required for measuring the power consumption to be compared with the demand target value. Further, the demand control is a control for preventing the power consumption from exceeding the target demand value in the demand time limit.

Further, the demand monitoring system 1 is configured to be able to communicate with the server 3 and the information terminal 6 outside the facility 5 via the router 7 and the network NT1 such as the Internet.

(2) Configuration (2-1) Configuration of management system As shown in FIG. 2, the management system 2 includes a monitoring device 10 as a demand monitoring system 1, a measuring device 21, current sensors 23a to 23j, and a control device. 25 and. Further, the facility 5 is provided with a power receiving / transforming facility 61 (cubicle) electrically connected to the system power supply 9.

The measuring device 21 is electrically connected to the current sensors 23a to 23j. The current sensor 23a is provided on the primary side of the power receiving / transforming equipment 61, and measures the value of the current flowing through the trunk line. The current sensors 23b to 23j are provided corresponding to the plurality of branch breakers 62, and measure the value of the current flowing through the plurality of branch circuits. The "branch circuit" here means each circuit branched from the main line by the power receiving / transforming equipment 61 and the plurality of branch breakers 62. The branch circuit includes wiring connected to the branch breaker 62, equipment 50 such as lighting equipment and cooking appliances, an outlet, a wall switch, and the like.

The measuring device 21 measures at least one of the power consumption and the electric energy consumption in the facility 5 by using the outputs of the electrically connected current sensors 23a to 23j. The measuring device 21 outputs the measured measured value (measured value) to the monitoring device 10. Here, the actually measured value may be power consumption representing instantaneous power consumption, or may be power consumption amount representing power consumption (usage amount) in a certain period of time. Further, the measured value may be both the power consumption and the power consumption amount. In the present embodiment, as an example, the measured value is the power consumption obtained by integrating the power consumption for each fixed time (for example, every 1 minute from the hour) in the demand time limit. For example, the measuring device 21 measures the value of the electric power used by each of the plurality of devices 50 for each device 50. Further, the measuring device 21 measures the value of the amount of electric power flowing through the power receiving / transforming equipment 61.

When the power consumption exceeds the target demand value in the facility 5, the measuring device 21 notifies that the power consumption exceeds the target demand value.

The monitoring device 10 performs demand control for at least one of the plurality of devices 50 based on the measurement result of the measuring device 21.

When the facility power amount exceeds the target demand value even when the demand control is performed in the demand time period including the measurement time point, the monitoring device 10 for, for example, with respect to the device 50 scheduled for operation in the demand time period. Change the operation schedule, etc. As a result, the amount of electric power used within the demand time limit can be reduced.

The control device 25 executes demand control for at least one of the plurality of devices 50 based on the control content transmitted from the monitoring device 10.

(2-2) Monitoring device Here, the configuration of the monitoring device 10 will be described.

As shown in FIG. 1, the monitoring device 10 includes a first communication unit 11, a second communication unit 12, a third communication unit 13, a storage unit 14, and a control unit 15.

The monitoring device 10 has, for example, a computer system having a processor and a memory. Then, the processor executes the program stored in the memory, so that the computer system functions as the control unit 15. The program executed by the processor is recorded in advance in the memory of the computer system here, but may be recorded in a non-temporary recording medium such as a memory card and provided, or provided through a telecommunications line such as the Internet. May be done.

The first communication unit 11 has a communication interface for communicating with the measuring device 21. The communication between the first communication unit 11 and the measuring device 21 may be wired or wireless.

The second communication unit 12 has a communication interface for communicating with the control device 25. The communication between the second communication unit 12 and the control device 25 may be wired or wireless.

The third communication unit 13 has a communication interface for communicating with the router 7. The third communication unit 13 can communicate with the server 3 via the router 7 and the network NT1. The communication between the third communication unit 13 and the router 7 may be wired or wireless.

The storage unit 14 is composed of a device selected from a ROM (Read Only Memory), a RAM (Random Access Memory), an EEPROM (Electrically Erasable Programmable Read Only Memory), and the like.

The storage unit 14 stores the amount of electric power measured in the past predetermined period (for example, one year). Specifically, the storage unit 14 stores the electric energy (actual value) for the past one year measured by the power receiving / transforming equipment 61.

The storage unit 14 stores the operation schedule of the device 50 for each of the plurality of devices 50 provided in the facility 5. The operation schedule includes the operation start time, the operation end time, and the amount of power consumed at the start of the operation (start power amount) of the corresponding device 50.

The storage unit 14 stores correlation information representing the relationship between the outside air temperature and the power consumption measured by the power receiving / transforming facility 61 at predetermined periods (for example, every month or every season).

The storage unit 14 stores information (event information) regarding the event carried out at the facility 5, in other words, the usage status of the facility 5. Event information includes the start date and time, end date and time of the event, and the number of participants. The storage unit 14 stores the number of devices 50 (for example, air-conditioning devices) used according to the number of participants and the amount of starting power per device.

As shown in FIG. 1, the control unit 15 includes a first acquisition unit 101, a second acquisition unit 102, a singular point prediction unit 103, an electric energy prediction unit 104, a determination unit 105, an electric energy control unit 106, and a demand control unit 107. To prepare for.

The first acquisition unit 101 acquires at least one of the actual value, operation schedule, correlation information, and event information for the past year stored in the storage unit 14 as additional information.

The second acquisition unit 102 acquires the measurement result from the measuring device 21 via the first communication unit 11. Here, the measurement result includes the power consumption of each device 50 and the power consumption of the facility 5 (power consumption of the power receiving / transforming facility 61). The second acquisition unit 102 stores the power consumption of the power receiving / transforming equipment 61 in the storage unit 14.

The singularity prediction unit 103 uses additional information to predict the presence or absence of a singularity. That is, the singular point prediction unit 103 uses additional information to predict whether or not a singular point exists in the remaining time zone of the demand time period including the time point measured this time. Here, the singular point is the time when the power consumption fluctuates abruptly. For example, when the increase in the power consumption measured this time with respect to the power consumption measured last time is equal to or more than the specified value, the time point measured last time becomes a singular point.

For example, when the first acquisition unit 101 acquires the actual value for the past one year as additional information, the singular point prediction unit 103 is the same as the current demand time limit among the actual values for the past one year. Get multiple actual values in the time zone. The singularity prediction unit 103 uses the acquired plurality of actual values to obtain the ratio of singular points existing in the past after the measurement time point corresponding to the present time in the demand time period including the present time. The singular point prediction unit 103 determines whether or not a singular point exists after the measurement time point corresponding to the present time using the obtained ratio. When the singular point prediction unit 103 determines that the singular point exists after the measurement time corresponding to the present time, the singular point prediction unit 103 predicts that the singular point exists. When the singular point prediction unit 103 determines that the singular point does not exist after the measurement time corresponding to the present time, the singular point prediction unit 103 predicts that the singular point does not exist.

When the first acquisition unit 101 acquires the operation schedule as additional information, the singular point prediction unit 103 uses the operation schedule to set the device 50 whose operation is started from the present time within the current demand time limit. Identify. The singularity prediction unit 103 acquires the starting power amount of the specified device 50. The singularity prediction unit 103 obtains the sum of the starting power amounts of all the specified devices 50. The singularity prediction unit 103 uses the obtained sum to determine whether or not a singularity exists after the measurement time point corresponding to the present time. The singular point prediction unit 103 determines (predicts) that a singular point exists when the obtained sum is equal to or greater than the above-mentioned specified value. The singular point prediction unit 103 determines (predicts) that the singular point does not exist when the obtained sum is not equal to or more than the above-mentioned specified value.

When the first acquisition unit 101 acquires the correlation information as additional information, the singularity prediction unit 103 has the correlation information (correspondence correlation information) corresponding to the period including the present time among a plurality of predetermined periods and the current. The outside air temperature is used to predict the power consumption after the present time within the current demand time limit. The singularity prediction unit 103 acquires the corresponding electric energy corresponding to the current outside air temperature from the corresponding correlation information. The singularity prediction unit 103 uses the acquired corresponding electric energy to determine whether or not a singularity exists after the measurement time corresponding to the present time. The singular point prediction unit 103 determines (predicts) that a singular point exists when the corresponding electric energy is equal to or more than the above-mentioned specified value. The singular point prediction unit 103 determines (predicts) that the singular point does not exist when the corresponding electric energy is not equal to or more than the above-mentioned specified value.

When the first acquisition unit 101 acquires the event information as additional information, the singularity prediction unit 103 uses the event information to determine the number of participants in the event starting from the present time within the current demand time limit. Identify. The singularity prediction unit 103 acquires the number of devices 50 (for example, air-conditioning devices) and the starting power amount per device according to the specified number of participants from the storage unit 14. The singularity prediction unit 103 multiplies the acquired number by the start power amount to calculate the increment of the power consumption at the start of the event. The singular point prediction unit 103 uses the calculated increment to determine whether or not a singular point exists after the measurement time point corresponding to the present time. The singular point prediction unit 103 determines (predicts) that a singular point exists when the calculated increment is equal to or greater than the above-mentioned specified value. The singularity prediction unit 103 determines (predicts) that the singularity does not exist when the calculated increment is not equal to or greater than the above-mentioned specified value.

When the first acquisition unit 101 acquires two or more of the actual value, operation schedule, correlation information, and event information for the past year as additional information, a singular point is obtained for each additional information. Predict the presence or absence.

The electric energy prediction unit 104 predicts the amount of facility electric power to be consumed in the future in the demand time period including the time when the measurement result is measured.

When the singular point prediction unit 103 predicts that the singular point does not exist, the electric energy prediction unit 104 uses the measurement result measured last time and the measurement result measured this time to consume the power consumption at the facility 5. Calculate the amount of increase in. Based on the calculated increase amount, the electric energy prediction unit 104 obtains a linear equation (hereinafter referred to as "first linear equation") that passes through the value of the electric energy consumption in the facility 5 which is the measurement result measured this time.

When the singular point prediction unit 103 predicts that a singular point exists, the electric energy prediction unit 104 first adds the increment of the electric energy corresponding to the singular point to the measurement result measured this time and obtains the added result. calculate. The electric energy prediction unit 104 calculates the amount of increase in the electric energy consumption in the facility 5 by using the result measured last time and the result after addition. The electric energy prediction unit 104 obtains a linear equation (hereinafter referred to as “second linear equation”) that passes through the result after addition based on the calculated increase amount.

The determination unit 105 uses the prediction result of the electric energy prediction unit 104, that is, the first linear formula or the second linear formula obtained by the electric energy prediction unit 104, and the facility is within the demand time period including the time when the measurement result is measured. Determine if the amount of power exceeds the target demand value in the future. For example, in the determination unit 105, the straight line represented by the first straight line formula or the second straight line formula obtained by the electric energy prediction unit 104 intersects the straight line (horizontal line) representing the target demand value within the demand time limit. In that case, it is determined that the amount of facility power exceeds the future target demand value within the demand time limit.

Further, when the determination unit 105 determines that the facility electric energy exceeds the future target demand value, the determination unit 105 determines whether or not the facility electric energy becomes equal to or less than the future target demand value within the demand time limit by the demand control. The determination unit 105 calculates an integral value (first value) from the time measured this time to the end of the demand time period using the first linear formula or the second linear formula. The determination unit 105 obtains a third linear equation from the time measured this time to the end of the demand time limit, assuming that the facility power amount just reaches the target demand value at the end of the demand time limit. The determination unit 105 calculates an integral value (second value) from the time measured this time to the end of the demand time limit using the third linear equation. The determination unit 105 calculates the difference value between the first value and the second value as the first reduced electric energy. The determination unit 105 calculates the amount of power that can be reduced (second reduced power amount) by executing the demand control. The determination unit 105 compares the first reduced electric energy amount and the second reduced electric energy amount. When the second reduced power amount is equal to or more than the first reduced power amount, the determination unit 105 determines that the facility power amount will be equal to or less than the future target demand value within the demand time limit by the demand control. When the second reduced power amount is smaller than the first reduced power amount, the determination unit 105 determines that the facility power amount does not fall below the future target demand value within the demand time limit by the demand control.

When the determination unit 105 determines that the facility power amount will not be less than or equal to the future target demand value within the demand time limit by the demand control, the power amount control unit 106 performs a process for suppressing an increase in the power consumption amount within the demand time limit. ..

Specifically, the electric energy control unit 106 stops the operation start in the demand time limit for the device 50 scheduled to start the operation in the demand time limit. Specifically, the electric energy control unit 106 sets the operation start time of the operation schedule corresponding to the device 50 scheduled to start operation within the demand time limit to a time not included in the demand time limit, for example, the next demand time limit. Change to the time included in. That is, the electric energy control unit 106 changes the operation start time of the device 50 scheduled to start operation within the demand time limit to the next demand time limit or later.

The electric energy control unit 106 may change the monitoring lock time when the determination unit 105 determines that the facility electric energy amount does not become equal to or less than the future target demand value within the demand time limit by the demand control. Here, the monitoring lock time is a period of the demand time period in which demand control is not performed. In the monitoring lock time, the amount of facility power is predicted.

The monitoring lock time can be set from 1 minute to 10 minutes. When the determination unit 105 determines that the facility power amount will not be less than or equal to the future target demand value within the demand time limit by the demand control within the monitoring lock time, the electric energy control unit 106 sets the monitoring lock time from the currently set time. Also set a short time. As a result, the start timing of the demand control can be advanced, so that the increase in the power consumption can be suppressed from the early stage of the demand time limit.

The demand control unit 107 performs demand control for the device 50 via the control device 25. The demand control unit 107 performs demand control on at least one of the plurality of devices 50 according to a predetermined demand schedule including the order of the demand control.

(3) Operation Here, the operation of the monitoring device 10 will be described with reference to FIG.

The first acquisition unit 101 acquires at least one of the actual value, operation schedule, correlation information, and event information for the past year from the storage unit 14 as additional information. (Step S1).

The second acquisition unit 102 acquires the measurement result from the measuring device 21 (step S2).

The singularity prediction unit 103 determines (predicts) whether or not a singularity exists by using additional information (step S3).

When the singular point prediction unit 103 determines that a singular point exists (“Yes” in step S3), the electric energy prediction unit 104 performs the first prediction process, and the future is in the demand time limit including the time when the measurement result is measured. Predict the amount of facility power consumed (step S4). Specifically, the electric energy prediction unit 104 calculates the result after addition by adding the increment of the electric energy corresponding to the singular point to the measurement result measured this time. The electric energy prediction unit 104 predicts the electric energy of the facility at the facility 5 by using the result measured last time and the result after addition.

When the singular point prediction unit 103 determines that the singular point does not exist (“No” in step S3), the electric energy prediction unit 104 performs the second prediction process, and in the demand time period including the time when the measurement result is measured. Predict the amount of facility power consumed in the future (step S5). Specifically, the electric energy prediction unit 104 predicts the facility electric energy at the facility 5 by using the measurement result measured last time and the measurement result measured this time.

The determination unit 105 determines whether or not the facility power amount exceeds the future target demand value within the demand time limit based on the prediction result by the first prediction process or the second prediction process (step S6).

When the determination unit 105 determines that the facility power amount exceeds the target demand value in the future (“Yes” in step S6), the determination unit 105 determines whether or not it can be suppressed by demand control (step S7). The determination unit 105 determines whether or not the facility power amount will be equal to or less than the future target demand value within the demand time limit by the demand control. Specifically, the determination unit 105 calculates the first reduced power amount that needs to be reduced in order to keep the facility power amount below the target demand value. The determination unit 105 calculates the second reduced electric energy when the demand control is executed. When the second reduced power amount is equal to or more than the first reduced power amount, the determination unit 105 determines that the facility power amount will be equal to or less than the future target demand value within the demand time limit by the demand control. When the second reduced power amount is smaller than the first reduced power amount, the determination unit 105 determines that the facility power amount does not fall below the future target demand value within the demand time limit by the demand control.

When the determination unit 105 determines that the control by the demand control is not possible (“No” in step S7), the electric energy control unit 106 is a process for suppressing an increase in the electric energy amount within the demand time limit. Perform processing (step S8). For example, the electric energy control unit 106 changes the operation start time of the device 50 scheduled to start operation within the demand time limit to the next demand time limit or later. Alternatively, the electric energy control unit 106 changes the monitoring lock time. Here, the process of changing the operation start time of the device 50 whose operation is scheduled to start within the demand time limit by the electric energy control unit 106 after the next demand time limit corresponds to the device control step of the present disclosure. Further, the process of changing the monitoring lock time by the electric energy control unit 106 corresponds to the time length control step of the present disclosure.

When the determination unit 105 determines that control by demand control is possible (“Yes” in step S7), the demand control unit 107 controls the device 50 capable of demand control via the control device 25. (Step S9). Specifically, the demand control unit 107 controls at least one device 50 capable of demand control according to a predetermined demand schedule.

(4) Advantages As described above, in the monitoring device 10 of the embodiment, the singular point prediction unit 103 predicts the presence or absence of the singular point in the remaining time zone of the demand time period by using the additional information. Further, when the singular point exists, the electric energy prediction unit 104 predicts the facility electric energy in the remaining time zone in consideration of the singular point. That is, when the monitoring device 10 has a singular point, the presence of the singular point is taken into consideration when predicting the facility power amount within the demand time limit, so that the facility power is earlier than the conventional one. It is possible to determine whether the amount exceeds the target demand value. As a result, the monitoring device 10 can take measures to suppress an increase in power consumption at an earlier timing as compared with the conventional case.

Further, the singular point prediction unit 103 uses at least one of the past actual results (for example, the actual value for one year), the operation schedule, the correlation information, and the event information when predicting the existence of the singular point. Therefore, the accuracy of predicting the existence of a singular point can be improved.

(5) Modification example (5-1) Modification example 1
In the embodiment, the monitoring device 10 is a demand monitoring system 1, and the monitoring device 10 is a storage unit 14, a first acquisition unit 101, a singular point prediction unit 103, a power amount prediction unit 104, a judgment unit 105, and a power amount control unit 106. And the demand control unit 107 is provided. However, it is not limited to this configuration.

The server 3 is a demand monitoring system 1, and the server 3 has a storage unit 14, a first acquisition unit 101, a singular point prediction unit 103, a power amount prediction unit 104, a judgment unit 105, a power amount control unit 106, and a demand control unit 107. You may prepare.

Alternatively, the storage unit 14, the first acquisition unit 101, the singularity prediction unit 103, the electric energy prediction unit 104, the determination unit 105, the electric energy control unit 106, and the demand control unit 107 include a plurality of monitoring devices 10 and a server 3. It may be distributed in the device.

(5-2) Modification 2
In the embodiment, the monitoring device 10 is configured to predict the presence or absence of a singular point within the same demand time limit as the time of measurement, but is not limited to this configuration.

The monitoring device 10 may predict the presence or absence of a singular point after the next demand time limit.

For example, when the power amount control unit 106 of the monitoring device 10 predicts that a singular point exists in the next demand time period, the power amount control unit 106 shortens the monitoring lock time in the next demand time period. Alternatively, the electric energy control unit 106 changes the operation schedule so that the device 50, which starts operation in the next demand time period, starts operation in another demand time period. As a result, the amount of electric power is suppressed in the next demand time limit.

Further, even if the monitoring device 10 predicts the facility power amount of the next day by using a plurality of measured values measured in the same or similar weather as the weather indicated by the weather forecast of the next day among the past measured values. good. For example, using multiple measured values measured in the same or similar weather as the weather shown in the next day's weather forecast, the average value for each measurement time point is calculated, and the transition of the next day's electric energy (facility electric energy) is calculated. Predict. The monitoring device 10 changes the operation schedule of the next day or changes the setting of the management lock time based on the predicted transition of the electric energy amount.

Further, the monitoring device 10 predicts the day of the week where the singular point exists, the time zone (or time) where the singular point exists, or the month and day (singular day) where the singular point exists, based on the past measured values. May be good. The electric energy control unit 106 changes the operation schedule or sets the management lock time on the day of the week when the singular point exists, the time zone (or time) where the singular point exists, or the singular day when the singular point exists. Change it.

(5-3) Modification 3
In the embodiment, the singularity prediction unit 103 uses the increment of the electric energy predicted based on the additional information to predict the presence or absence of the singularity, but is not limited to this configuration.

The singular point prediction unit 103 may predict the presence or absence of a singular point without obtaining an increase in electric energy. For example, if there is a device 50 whose operation is scheduled to start within the current demand time limit using the operation schedule, it is predicted that a singular point exists. The singularity prediction unit 103 predicts that a singularity exists when the event is scheduled to be started within the current demand time limit using the event information.

The electric energy prediction unit 104 predicts an increase in electric energy when the singular point prediction unit 103 predicts that a singular point exists. For example, the electric energy prediction unit 104 uses an operation schedule to obtain an increase in electric energy based on the start electric energy of the device 50 scheduled to start operation within the current demand time limit. Further, the electric energy prediction unit 104 uses the event information to obtain an increase in the electric energy based on the number of participants in the event scheduled to be started within the current demand time limit. The electric energy prediction unit 104 predicts the facility electric energy using the previous measurement result and the result of adding the obtained increment to the current measurement result.

(5-4) Modification 4
In the embodiment, the singular point is, for example, the time point measured last time when the increase in the amount of power consumption measured this time is equal to or more than the specified value with respect to the power consumption measured last time. As an example, the singular point may be the time point measured last time when the decrease in the amount of power consumption measured this time with respect to the power consumption measured last time is equal to or more than the specified value. Hereinafter, the time point measured last time when the decrease in the amount of power consumption measured this time with respect to the power consumption measured last time is equal to or more than the specified value is referred to as a singular point for reduction.

When the electric energy control unit 106 is predicted to have a singularity for reduction, for example, the device 50 scheduled to start operation in the next demand time period starts operation in the current demand time period. Change the operation schedule. Further, when it is predicted that the reduction singularity exists within the monitoring lock time, the electric energy control unit 106 changes the set time so as to extend the monitoring lock time.

(5-5) Modification 5
In the embodiment, the electric energy control unit 106 operates when the determination unit 105 determines that the control is impossible, but the configuration is not limited to this.

When the facility power amount predicted by the power amount prediction unit 104 exceeds the target demand value, the power amount control unit 106 may operate.

(5-6) Modification 6
In the embodiment, the monitoring device 10 stores information representing the relationship between the outside air temperature and the power consumption measured by the power receiving / transforming facility 61 as correlation information, and is used for predicting the presence / absence of a singular point. , Not limited to this configuration.

The monitoring device 10 may store information representing the relationship between the humidity information representing the humidity in the facility 5 and the power consumption measured by the power receiving / transforming facility 61 as correlation information and use it for predicting the power amount. In this case, the singularity prediction unit 103 uses the correlation information (correspondence correlation information) corresponding to the period including the current time among the plurality of predetermined periods and the humidity information indicating the current humidity, and is used after the current time within the current demand time limit. Predict the amount of power consumption. The singularity prediction unit 103 acquires the corresponding electric energy corresponding to the current humidity from the corresponding correlation information. The singularity prediction unit 103 uses the acquired corresponding electric energy to determine whether or not a singularity exists after the measurement time corresponding to the present time. The singular point prediction unit 103 determines (predicts) that a singular point exists when the corresponding electric energy is equal to or more than the above-mentioned specified value. The singular point prediction unit 103 determines (predicts) that the singular point does not exist when the corresponding electric energy is not equal to or more than the above-mentioned specified value.

Alternatively, the monitoring device 10 may store information representing the relationship between both the outside air temperature and humidity information and the power consumption measured by the power receiving / transforming facility 61 as correlation information and use it for predicting the power amount. In this case, the singularity prediction unit 103 uses the correlation information (correspondence correlation information) corresponding to the period including the present time among the plurality of predetermined periods, the humidity information indicating the current humidity, and the current outside air temperature to obtain the current demand. Predict the amount of power consumption after the present time within the time limit. The singularity prediction unit 103 acquires the corresponding electric energy corresponding to both the current humidity and the outside air temperature from the corresponding correlation information. The singularity prediction unit 103 uses the acquired corresponding electric energy to determine whether or not a singularity exists after the measurement time corresponding to the present time. The singular point prediction unit 103 determines (predicts) that a singular point exists when the corresponding electric energy is equal to or more than the above-mentioned specified value. The singular point prediction unit 103 determines (predicts) that the singular point does not exist when the corresponding electric energy is not equal to or more than the above-mentioned specified value.

(5-7) Modification 7
In the above embodiment, the monitoring device 10 and the measuring device 21 are configured as separate devices, but the configuration is not limited to this.

The monitoring device 10 and the measuring device 21 may be configured as one device.

(5-8) Other Modifications The above embodiment is only one of the various embodiments of the present disclosure. The above embodiment can be variously modified according to the design and the like as long as the object of the present disclosure can be achieved. Further, the same function as the demand monitoring system 1 may be realized by a monitoring method, a computer program, a non-temporary recording medium on which the program is recorded, or the like. The monitoring method according to one aspect is used in the demand monitoring system 1 that monitors the facility electric energy, which is the electric energy used in the facility 5, and performs demand control. The monitoring method includes a singular point prediction step and an electric energy prediction step. The singularity prediction step predicts the presence or absence of a singularity. In the electric energy prediction step, when it is determined in the singular point prediction step that a singular point exists, the facility electric energy is predicted using the electric energy obtained based on the singular point. The program according to one aspect is a program for making a computer system function as the above-mentioned monitoring method.

The execution subject of the demand monitoring system 1 or the monitoring method in the present disclosure includes a computer system. The computer system has a processor and memory as hardware. When the processor executes the program recorded in the memory of the computer system, the function as the execution subject of the demand monitoring system 1 or the monitoring method in the present disclosure is realized. The program may be pre-recorded in the memory of the computer system, but may be provided through a telecommunication line. Further, the program may be recorded and provided on a non-temporary recording medium such as a memory card, an optical disk, or a hard disk drive that can be read by a computer system. The processor of a computer system is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large scale integrated circuit (LSI). A plurality of electronic circuits may be integrated on one chip, or may be distributed on a plurality of chips. A plurality of chips may be integrated in one device, or may be distributed in a plurality of devices.

The demand monitoring system 1 which is a computer system may be a system composed of one or a plurality of computers. For example, at least a part of the functions of the demand monitoring system 1 may be realized by the cloud (cloud computing).

(summary)
As described above, the monitoring method of the first aspect is used in the demand monitoring system (1) that monitors the amount of electric power used in the facility (5) and performs demand control. The monitoring method includes a singular point prediction step and an electric energy prediction step. The singularity prediction step predicts the presence or absence of a singularity. When the power amount prediction step determines that a singular point exists in the singular point prediction step, the facility power amount is predicted based on the power amount obtained based on the singular point.

According to the first aspect, when a singular point exists, the existence of the singular point is taken into consideration when predicting the facility electric energy within the demand time limit, so that the facility electric power is earlier than the conventional one. It is possible to determine whether the amount exceeds the target demand value. As a result, it is possible to take measures to suppress the increase in power consumption at an earlier timing as compared with the conventional case.

In the monitoring method of the second aspect, in the first aspect, the singular point prediction step predicts the presence or absence of a singular point based on the actual value of the past electric energy.

According to the second aspect, the past actual value is used for predicting the presence or absence of the singular point. It is unlikely that the amount of electricity used will change significantly within the same period (eg, the same month, the same season, etc.). Therefore, the accuracy of the prediction can be improved by using the past actual value for predicting the existence of the singular point.

In the monitoring method of the third aspect, in the first or second aspect, the singularity prediction step predicts the presence or absence of the singularity based on the operation schedule of the device (50).

According to the third aspect, by using the operation schedule for predicting the existence of the singular point, it is possible to know whether or not there is a device (50) whose operation will be started in the future within the current demand time limit. .. As a result, it is possible to know the future increase in power consumption within the current demand time limit, so that the accuracy of prediction can be improved.

In the monitoring method of the fourth aspect, in any one of the first to third aspects, the singularity prediction step is based on the relationship between at least one of the outside air temperature and humidity information and the power consumption, and the presence of the singularity. Predict the presence or absence of.

According to the fourth aspect, the relationship between the outside air temperature and the power consumption is used to predict the presence or absence of the singular point. At the same outside temperature, the amount of electricity used is unlikely to change significantly. Therefore, by using the relationship between the outside air temperature and the power consumption to predict the presence or absence of a singular point, the accuracy of the prediction can be improved.

In the monitoring method of the fifth aspect, in any one of the first to fourth aspects, the singularity prediction step predicts the presence or absence of a singularity based on the event information regarding the event performed at the facility (5). do.

According to the fifth aspect, by using the event information for predicting the existence of the singular point, it is possible to know whether or not there is an event to be performed in the future within the current demand time limit. As a result, it is possible to predict future increases in power consumption due to events occurring within the current demand time limit. As a result, it is possible to know the future increase in power consumption within the current demand time limit, so that the accuracy of prediction can be improved.

The monitoring method of the sixth aspect further includes a device control step in any one of the first to fifth aspects. The device control step corresponds to the operation target device whose operation is started in the demand time when the facility power amount predicted in the power amount prediction step is equal to or more than the target demand value in the demand time period which is the prediction target period. Stops the start of operation.

According to the sixth aspect, since the start of the operation is stopped for the operation target device to which the operation is started, the possibility that the power consumption amount suddenly increases can be reduced.

In the monitoring method of the seventh aspect, in the sixth aspect, the device control step changes the operation start of the operation target device (device 50) after the next demand time limit.

According to the seventh aspect, it is possible to reduce the possibility that the power consumption suddenly increases within the demand time limit when the operation is scheduled to start.

The monitoring method of the eighth aspect further includes a time length control step in any one of the first to seventh aspects. The time length control step changes the time length of the monitoring lock time in which demand control is suppressed when the facility power amount predicted in the power amount prediction step exceeds the target demand value in the demand time period which is the prediction target period. ..

According to the eighth aspect, the time length of the monitoring lock time is changed. For example, by shortening the time length of the monitoring lock time, the demand control can be started at an earlier timing than in the conventional case.

The program of the ninth aspect is a program for causing a computer to execute the monitoring method of any one of the first to eighth aspects.

According to the ninth aspect, it is possible to determine whether or not the facility power amount exceeds the target demand value at an earlier timing than in the conventional case. As a result, it is possible to take measures to suppress the increase in power consumption at an earlier timing as compared with the conventional case.

The demand monitoring system (1) of the tenth aspect monitors the amount of electric power used in the facility (5) and performs demand control. The demand monitoring system (1) includes a singular point prediction unit (103) and an electric energy prediction unit (104). The singularity prediction unit (103) predicts the presence or absence of a singularity. When the singular point prediction unit (103) determines that a singular point exists, the electric energy prediction unit (104) predicts the electric energy of the facility electric energy based on the electric energy obtained based on the singular point.

According to the tenth aspect, it is possible to determine whether or not the facility power amount exceeds the target demand value at an earlier timing than in the conventional case. As a result, it is possible to take measures to suppress the increase in power consumption at an earlier timing as compared with the conventional case.

1 Demand monitoring system 5 Facilities 50 Equipment 50a-50c Lighting equipment 50d-50e Air-conditioning equipment 103 Singular point prediction unit 104 Electric energy prediction unit 105 Judgment unit 106 Electric energy control unit 107 Demand control unit

Claims (10)

It is a monitoring method used in a demand monitoring system that monitors the amount of power used in a facility and controls demand.
A singular point prediction step for predicting the existence or nonexistence of a singular point related to a change in power consumption in the demand control ,
When it is determined in the singularity prediction step that the singularity exists, it includes a power amount prediction step of predicting the facility power amount based on the power amount obtained based on the singularity.
In the singularity prediction step,
Percentage of the actual values for a predetermined period in which the singularity exists in the past after the measurement time corresponding to the current time in the demand time including the current time using multiple actual values in the same time zone as the current demand time. And use the obtained ratio to determine whether or not the singularity exists after the measurement time corresponding to the present time.
Monitoring method. The singularity prediction step is
Predict the existence of the singular point based on the actual value of the past electric energy.
The monitoring method according to claim 1. The singularity prediction step is
Predicting the presence or absence of the singularity based on the operation schedule of the device,
The monitoring method according to claim 1 or 2. The singularity prediction step is
The presence or absence of the singularity is predicted based on the relationship between at least one of the outside air temperature and humidity information and the power consumption.
The monitoring method according to any one of claims 1 to 3. The singularity prediction step is
Predict the presence or absence of the singularity based on event information about events taking place at the facility.
The monitoring method according to any one of claims 1 to 4. When the facility power amount predicted in the power amount prediction step is equal to or greater than the target demand value in the demand time period, which is the prediction target period, the operation is started for the operation target device whose operation is started in the demand time period. Further includes device control steps to be discontinued,
The monitoring method according to any one of claims 1 to 5. The device control step is
The operation start of the operation target device is changed after the next demand time limit.
The monitoring method according to claim 6. When the facility power amount predicted in the power amount prediction step exceeds the target demand value in the demand time period which is the prediction target period, the time length control step for changing the time length of the monitoring lock time in which the demand control is suppressed is performed. , Including more,
The monitoring method according to any one of claims 1 to 7. A program for causing a computer to execute the monitoring method according to any one of claims 1 to 8. It is a demand monitoring system that monitors the amount of power used in the facility and controls the demand.
A singular point prediction unit that predicts the existence of a singular point related to a change in power consumption in the demand control, and a singular point prediction unit.
When the singularity prediction unit determines that the singularity exists, it is provided with a power amount prediction unit that predicts the power amount of the facility power amount based on the power amount obtained based on the singularity.
The singularity prediction unit
Percentage of the actual values for a predetermined period in which the singularity exists in the past after the measurement time corresponding to the current time in the demand time including the current time using multiple actual values in the same time zone as the current demand time. And use the obtained ratio to determine whether or not the singularity exists after the measurement time corresponding to the present time.
Demand monitoring system.

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