JP6075584B2 - Control device, energy management system, control method, and program - Google Patents

Description

  The present invention relates to a control device, an energy management system, a control method, and a program.

  In recent years, commercialization of demand response (DR), which is a mechanism for stably supplying power, has been promoted. This demand response is an incentive system that encourages consumers to suppress demand or shift demand in order to maintain a power demand balance.

  Demand response can be roughly divided into those based on electricity charges and those based on incentives. Demand response based on electricity charges encourages consumers to shift their peaks through electricity price menus (hourly charges, critical peak charges, real-time charges, etc.). Further, incentive-based demand response prompts a peak shift or peak cut by paying a consumer a bonus for load suppression.

  As a prior art related to such a demand response, for example, Patent Document 1 discloses a DR countermeasure proposal device that can perform device control in accordance with a consumer's preference. When this DR countermeasure proposal device receives the DR command (suppression command for power reduction) sent from the DR server, it stops the home device (home appliance) so as to satisfy the power reduction.

JP2013-031355A

  Although the technique of said patent document 1 can perform electric power suppression of a commercial power system according to DR instruction | command, since it is what stops a household appliance, a resident's comfort may be impaired remarkably. was there.

  The present invention has been made in view of the above situation, and can maintain a resident's comfort while appropriately controlling power in a commercial power system, an energy management system, a control method, and a program The purpose is to provide.

In order to achieve the above object, a control device according to the present invention provides:
A control device for controlling home appliances that consume power supplied from an electric power system and a storage battery,
A receiving unit that receives the suppression command of the power system transmitted from the outside;
In accordance with the suppression command received by the receiving unit, an instruction unit for instructing discharge of the storage battery,
An acquisition unit that acquires the remaining amount of electricity stored in the storage battery instructed to be discharged by the instruction unit;
A control unit that suppresses the power consumed by the home appliance based on the remaining power amount acquired by the acquisition unit , and
The suppression command received by the receiving unit includes a suppression end time,
The control unit predicts the remaining amount of power storage based on the suppression end time, and suppresses the power consumed by the home appliance based on the predicted remaining power storage amount .

  ADVANTAGE OF THE INVENTION According to this invention, the electric power suppression of a commercial power grid | system can be performed appropriately, maintaining a resident's comfort.

It is a block diagram which shows an example of a structure of the energy management system which concerns on Embodiment 1 of this invention. It is a block diagram which shows an example of a structure of a control apparatus. It is a graph which shows the change of the accumulation | storage remaining amount at the time of suppressing the power consumption of household appliances according to an electrical storage residual amount and a threshold value. It is a graph which shows the change of the accumulation | storage remaining amount at the time of suppressing the power consumption of household appliances according to prediction of the electrical storage residual amount. It is a schematic diagram which shows an example of DR command memorize | stored in a memory | storage part. It is a schematic diagram which shows an example of the priority table memorize | stored in a memory | storage part. It is a flowchart which shows an example of a control process. It is a sequence diagram which shows the flow of a specific process in case a storage battery (electric vehicle) is connected. It is a sequence diagram which shows the flow of a specific process in case the storage battery (electric vehicle) is not connected. It is a block diagram which shows an example of a structure of the energy management system which concerns on Embodiment 2 of this invention. It is a graph which shows the change of accumulation | storage residual amount in case a storage battery is charged suitably.

  Embodiments of the present invention will be described below. In the following, for ease of understanding, an embodiment in which the present invention is applied to a control device will be described. However, the present invention can be similarly applied to information processing devices such as various computers, PDAs, and mobile phones. it can. That is, the embodiment described below is for explanation, and does not limit the scope of the present invention. Therefore, those skilled in the art can employ embodiments in which each or all of these elements are replaced with equivalent ones, and these embodiments are also included in the scope of the present invention.

(Embodiment 1)
FIG. 1 is a block diagram illustrating an example of a configuration of an energy management system 1 according to Embodiment 1 of the present invention. As an example, the energy management system 1 is a system constructed in a house or the like, and includes a distribution board 10, a plurality of home appliances 20, a power conditioner 30, an electric vehicle 40 (storage battery 50), and a control. Device 100.

  The distribution board 10 distributes the electric power supplied from an electric power company to each household appliance 20 via the electric power line E1 extended from a commercial power grid. As will be described later, power from the storage battery 50 can be supplied to the power line E <b> 1 via the power conditioner 30. Therefore, the distribution board 10 distributes the electric power supplied from the commercial power system and the storage battery 50 via the power line E1 via each power line E2.

  The home appliance 20 includes, for example, an air conditioner, lighting, a ventilation fan, a television, a refrigerator, a rice cooker, an IH (Induction Heating) cooker, and the like, and operates by consuming electric power supplied through the power line E2. Moreover, the household appliances 20 are provided with the wireless communication unit, for example, and can communicate with the control apparatus 100 so that it may mention later. As will be described later, each home appliance 20 is set in advance by the user in a priority order in which operation is desired.

  The power conditioner 30 controls charging / discharging (charging and discharging) of the storage battery 50. For example, at the time of charging, the power conditioner 30 converts electric power (AC power) supplied from the commercial power system via the power line E1 into DC power, and supplies the DC power to the electric vehicle 40 via the power line E3. 50 is charged. On the other hand, at the time of discharging, the power conditioner 30 converts electric power (DC power) supplied from the electric vehicle 40 (storage battery 50) via the power line E3 into AC power, and supplies it to the distribution board 10 via the power line E1. Supply that power. In addition, the power conditioner 30 detects the remaining amount of power stored in the storage battery 50 and also detects whether or not the electric vehicle 40 is connected to the power line E3. In addition, the power conditioner 30 includes, for example, a wireless communication unit, and can communicate with the control device 100 as described later.

  The electric vehicle 40 includes, for example, an EV (Electric Vehicle), a PHEV (Plug-in Hybrid Electric Vehicle), and the like. The electric vehicle 40 is detachably connected to the power conditioner 30 via the power line E3. The electric vehicle 40 includes a storage battery 50 described below.

  The storage battery 50 is made of, for example, a lithium ion secondary battery, and can store a certain amount of electric power. The storage battery 50 is controlled by the power conditioner 30 to charge and discharge. In addition, although this embodiment demonstrates the case where the storage battery 50 mounted in the electric vehicle 40 is used, even if it is the stationary storage battery 50, it is not restricted to the storage battery 50 mounted in such an electric vehicle 40. Good. In that case, the storage battery 50 is directly connected to the power conditioner 30 via the power line E3.

  The control apparatus 100 is comprised from a HEMS (Home Energy Management System) controller etc., for example, and controls the energy management system 1 whole. The control device 100 is communicably connected to an external network 90 such as the Internet. As illustrated in FIG. 2, the control device 100 includes an external communication unit 110, an arithmetic processing unit 120, a storage unit 130, a time measuring unit 140, and an internal communication unit 150.

  The external communication unit 110 includes, for example, a wired communication unit, is controlled by the arithmetic processing unit 120, and can communicate with a DR (Demand Response) server (not shown) via the external network 90. As an example, the DR server transmits a DR command, which is a suppression command for power reduction, to the control device 100. Details of the DR command will be described later. Note that the DR command may be received via a smart meter or the like instead of the external communication unit 110.

  The arithmetic processing unit 120 includes, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The arithmetic processing unit 120 reads a program stored in a ROM or the like (more specifically, a program such as a control process to be described later) into the RAM, and is executed by the CPU, whereby the receiving unit 121 and the instruction unit described below are executed. 122, the acquisition part 123, and the control part 124 are implement | achieved.

  The receiving unit 121 receives a DR command transmitted from an external DR server via the external communication unit 110. This DR command is a suppression command for reducing the power of the commercial power system, and includes, as an example, information on the power suppression amount, the start time, and the end time. The receiving unit 121 stores the received DR command in the storage unit 130.

  The instruction unit 122 instructs the power conditioner 30 to discharge the storage battery 50 in accordance with the DR command. For example, the instruction unit 122 instructs the power conditioner 30 to discharge the storage battery 50 through the internal communication unit 150 when the time measured by the time measuring unit 140 is the start time included in the DR command. In addition, when the time counted by the timing unit 140 reaches the end time included in the DR command, the instruction unit 122 instructs the power conditioner 30 to stop discharging (charging, etc.) of the storage battery 50 through the internal communication unit 150.

  The acquisition unit 123 sequentially acquires the remaining amount of power stored in the storage battery 50 from the power conditioner 30. For example, the acquisition unit 123 transmits a storage state GET request, which is request information, to the power conditioner 30 through the internal communication unit 150, and receives information including the remaining storage amount returned from the power conditioner 30. In addition, when the electric vehicle 40 is not connected to the power line E3 (such as when going out using the electric vehicle 40), when the storage state GET request is transmitted to the power conditioner 30, the power conditioner 30 indicates that there is no storage battery. Reply with the information shown. For this reason, the acquisition part 123 can also acquire the presence or absence of the connection of the electric vehicle 40 (storage battery 50).

  The control unit 124 suppresses the power consumed by the home appliance 20 based on the remaining amount of electricity stored by the acquisition unit 123. For example, the control unit 124 transmits a power saving instruction, which is instruction information, to the home appliance 20 through the internal communication unit 150, and suppresses the power consumed by the home appliance 20. In addition, the priority order in which operation is desired for each home appliance 20 is set in advance by the user, and is stored in the storage unit 130 as a priority order table to be described later. The control unit 124 transmits power saving instructions in the order of the home appliances 20 having the lowest priority order, and suppresses power consumption.

  More specifically, control unit 124 suppresses the power consumed by home appliance 20 based on the relationship between the remaining amount of electricity stored in storage battery 50 and a predetermined threshold value. For example, as illustrated in the graph of FIG. 3, when power suppression is started at time T <b> 1, the control unit 124 starts comparing the remaining power storage amount with the threshold 1. And if the electrical storage residual amount falls below the threshold value 1 at the time T2, the control part 124 will transmit a power-saving instruction | indication to the household appliances 20 with the lowest priority, and will suppress power consumption. Thereafter, the control unit 124 starts comparing the remaining power storage amount with the threshold value 2. And if the electrical storage residual amount falls below the threshold value 2 at the time T3, the control part 124 will transmit a power-saving instruction | indication to the household appliances 20 with the next lowest priority, and will suppress power consumption. When the power suppression ends at time T4, the control unit 124 transmits a power saving cancellation instruction to each home appliance 20 that has transmitted the power saving instruction.

  In addition, the control part 124 may suppress the power consumption of the household appliances 20 without using such a threshold value. For example, the remaining amount of electricity stored at the end time of power suppression may be predicted from a change in the remaining amount of electricity stored in a certain period, and the power consumption of the home appliance 20 may be suppressed based on the predicted remaining amount of electricity stored. For example, as shown in the graph of FIG. 4, when power suppression is started at time T <b> 5, the control unit 124 plots (accumulates) the remaining amount of electricity stored for a certain period (period TP in the figure). Then, at time T6, the remaining amount of electricity stored along the prediction line L1 is predicted. At that time, when it is predicted that the remaining amount of power storage will be exhausted before the end time of power suppression, the control unit 124 transmits a power saving instruction to the household electrical appliance 20 having the lowest priority, and suppresses power consumption. Thereafter, the control unit 124 similarly plots the remaining amount of electricity stored for a certain period, and predicts the remaining amount of electricity stored along the prediction line L2 at time T7. At that time, when it is predicted that the remaining amount of power storage will be exhausted before the power suppression end time, the control unit 124 transmits a power saving instruction to the home appliance 20 having the second lowest priority, and suppresses power consumption. Thereafter, the control unit 124 similarly plots the remaining amount of electricity stored for a certain period, and predicts the remaining amount of electricity stored along the prediction line L3 at time T8. At that time, when it is predicted that there is a remaining power storage at the end time of power suppression, the control unit 124 does not transmit a power saving instruction. When the power suppression ends at time T9, the control unit 124 transmits a power saving cancellation instruction to each home appliance 20 that has transmitted the power saving instruction.

  Returning to FIG. 2, the storage unit 130 includes a RAM, a flash memory, and the like, and stores information necessary for the operation of the control device 100. For example, the storage unit 130 stores a DR command 131 as shown in FIG. This DR command 131 is a suppression command for reducing the power of the commercial power system received by the receiving unit 121 from the external DR server, and includes information on the power suppression amount, the start time, and the end time. ing. The storage unit 130 also stores a priority order table 132 as shown in FIG. This priority table 132 is set in advance by the user, and the information on the home appliances 20 is arranged in descending order of priority in which operation is desired. The address in the figure is used for transmitting a power saving instruction or the like. In addition to this, the storage unit 130 stores the value of the threshold (threshold 1, threshold 2) described in FIG. 3 described above, and the value of the remaining power stored in each period TP described in FIG. 4 described above. Also remember.

  Returning to FIG. 2, the timekeeping unit 140 includes, for example, an RTC (Real-Time Clock) and the like, and measures the current time.

  The internal communication unit 150 includes, for example, a wireless communication unit and the like, and is controlled by the arithmetic processing unit 120 to communicate with the power conditioner 30 and each home appliance 20.

  The operation of the control device 100 having such a configuration will be described with reference to FIG. FIG. 7 is a flowchart illustrating an example of a control process performed by the control device 100 (arithmetic processing unit 120).

  First, the arithmetic processing unit 120 stands by until a DR command is received (step S201). That is, the receiving unit 121 determines whether or not a DR command transmitted from an external DR server has been received via the external communication unit 110, and when determining that it has not been received (step S201; No), It is determined whether or not a DR command is received. On the other hand, when it is determined that a DR command has been received (step S201; Yes), the arithmetic processing unit 120 stores the received DR command in the storage unit 130 (step S202). That is, the DR command 131 as shown in FIG. 5 described above is stored in the storage unit 130.

  The arithmetic processing unit 120 determines whether or not there is the storage battery 50 (step S203). That is, the acquisition unit 123 transmits a power storage state GET request to the power conditioner 30 through the internal communication unit 150, and the storage battery 50 is sent to the power conditioner 30 via the power line E3 according to information returned from the power conditioner 30. Determine if connected. For example, the acquisition unit 123 determines that there is the storage battery 50 when the returned information is the remaining power storage amount. On the other hand, when the returned information indicates that there is no storage battery, the acquisition unit 123 determines that there is no storage battery 50.

  If it is determined that there is the storage battery 50 (step S203; Yes), the arithmetic processing unit 120 waits until the power suppression start time (step S204). That is, the arithmetic processing unit 120 waits until the time measured by the time measuring unit 140 reaches the start time included in the DR command (DR command 131 in FIG. 5).

  When the time counted by the time measuring unit 140 becomes the start time (step S204; Yes), the arithmetic processing unit 120 instructs the storage battery 50 to be discharged (step S205). That is, the instruction unit 122 instructs the power conditioner 30 to discharge the storage battery 50 through the internal communication unit 150.

  The arithmetic processing unit 120 monitors the remaining amount of electricity stored in the storage battery 50 (step S206). That is, the acquisition unit 123 transmits a power storage state GET request to the power conditioner 30 through the internal communication unit 150 and monitors the remaining power storage amount returned from the power conditioner 30. For example, when suppressing the power consumption of the home appliance 20 based on the relationship between the remaining amount of electricity stored and the threshold, the arithmetic processing unit 120 sets the remaining amount of electricity stored as a threshold (threshold 1, threshold) as shown in FIG. The remaining amount of electricity stored in the storage battery 50 is monitored while comparing with 2). Moreover, when suppressing the power consumption of the household appliances 20 based on the estimated remaining power amount, the arithmetic processing unit 120 is predicting the remaining power amount at the end time of power suppression as illustrated in FIG. 4 described above. Then, the remaining amount of electricity stored in the storage battery 50 is monitored.

  The arithmetic processing unit 120 determines whether or not power suppression is necessary from the monitored remaining power amount (step S207). For example, when the arithmetic processing unit 120 suppresses the power consumption of the home appliance 20 based on the relationship between the remaining power storage and the threshold value, the arithmetic processing unit 120 determines that the remaining power storage is as shown in FIG. When it falls below the threshold (threshold 1, threshold 2), it is determined that power suppression is necessary. Moreover, when suppressing the power consumption of the household appliances 20 based on the estimated remaining power storage amount, the arithmetic processing unit 120 has the remaining power storage amount before the power suppression end time, as illustrated in FIG. 4 described above. When it is predicted that it will disappear, it is determined that power suppression is necessary.

  If the arithmetic processing unit 120 determines that power suppression is not necessary (step S207; No), the processing proceeds to step S209 described later. On the other hand, when it is determined that power suppression is necessary (step S207; Yes), the arithmetic processing unit 120 issues a power saving instruction (step S208). That is, the control unit 124 refers to the above-described priority order table 132 shown in FIG. 6 stored in the storage unit 130, and transmits a power saving instruction to the household electrical appliance 20 with a low priority order to suppress power consumption.

  The arithmetic processing unit 120 determines whether or not the power suppression end time has come (step S209). That is, the arithmetic processing unit 120 determines whether or not the time measured by the time measuring unit 140 has reached the end time included in the DR command (DR command 131 in FIG. 5). If it is determined that the end time has not come (step S209; No), the arithmetic processing unit 120 returns the process to step S206, and repeatedly executes the above-described steps S206 to S209.

  On the other hand, when it is determined that the end time has come (step S209; Yes), the arithmetic processing unit 120 instructs to stop discharging (step S210). That is, the instruction unit 122 instructs the power conditioner 30 to stop discharging the storage battery 50 through the internal communication unit 150.

  Moreover, when it determines with there being no storage battery 50 in step S203 mentioned above (step S203; No), the arithmetic processing part 120 waits until the start time of electric power suppression (step S211). When the start time comes (step S211; Yes), the arithmetic processing unit 120 refers to the priority table 132 shown in FIG. 6 described above and issues a power saving instruction (step S212). That is, the control unit 124 transmits a power saving instruction to the household electrical appliance 20 with a low priority in the priority order table 132 and suppresses power consumption. For example, the control unit 124 transmits a power saving instruction to a predetermined number (three as an example) of household electrical appliances 20 in order from the lowest priority to suppress power consumption.

  Thereafter, the arithmetic processing unit 120 stands by until the power suppression end time (step S213). When the end time is reached, the arithmetic processing unit 120 proceeds to step S214.

  Finally, the arithmetic processing unit 120 instructs power saving cancellation (step S214). That is, the control unit 124 transmits a power saving cancellation instruction to each home appliance 20 that has transmitted the power saving instruction.

  Hereinafter, operation | movement of the energy management 1 whole is demonstrated with reference to the sequence diagram of FIG.

  Initially, with reference to FIG. 8, the flow of a specific process in case the storage battery 50 (electric vehicle 40) is connected to the power line E3 is demonstrated. First, when a DR command is transmitted to the control device 100 (Sq301), the control device 100 transmits a storage state GET request to the power conditioner 30 (Sq302). The power conditioner 30 returns “remaining power storage amount: high” indicating that there is a battery (Sq303). Thereby, the control apparatus 100 discriminate | determines that the storage battery 50 (electric vehicle 40) is connected to the power line E3. Note that “remaining power storage amount: large” or the like returned by the power conditioner 30 is for ease of explanation, and actually a specific value is returned.

  When the power suppression is started (when the power suppression start time is reached), the control device 100 transmits a discharge instruction to the power conditioner 30 (Sq304). Thereafter, control device 100 transmits a storage state GET request to power conditioner 30 (Sq305). The power conditioner 30 returns “remaining power storage amount: medium” (Sq306). When it is necessary to suppress power due to this remaining power storage (for example, when the remaining power storage falls below a threshold or when it is predicted that there will be no remaining power storage before the power suppression end time), the control device 100 Transmits a power saving instruction to the household electric appliance 20 whose priority is set to low (Sq307). This power saving instruction includes specific numerical values such as “20% power saving”, for example. In the case of “100% power saving”, the home appliance 20 is instructed to turn off the power.

  Similarly, control device 100 transmits a storage state GET request to power conditioner 30 (Sq308). The power conditioner 30 returns “remaining power storage amount: small” (Sq309). When it is necessary to suppress the power again due to the remaining amount of power, the control device 100 transmits a power saving instruction to the household electrical appliance 20 whose priority is set to medium (Sq310).

  Furthermore, the control device 100 transmits a storage state GET request to the power conditioner 30 (Sq311). The power conditioner 30 returns “remaining power storage: minimum” (Sq312). When it is necessary to suppress power again due to the remaining amount of electricity stored, the control device 100 transmits a power saving instruction to the home appliance 20 whose priority is set to high (Sq313).

  When the power suppression ends (when the power suppression end time is reached), the control device 100 transmits a discharge stop instruction to the power conditioner 30 (Sq314). And the control apparatus 100 transmits a power saving cancellation | release instruction | indication with respect to each household appliance 20 which transmitted the power saving instruction | indication (Sq315-Sq317).

  Next, a specific processing flow when the storage battery 50 (electric vehicle 40) is not connected to the power line E3 will be described with reference to FIG. First, when a DR command is transmitted to the control device 100 (Sq401), the control device 100 transmits a storage state GET request to the power conditioner 30 (Sq402). The power conditioner 30 returns “no storage battery” (Sq403). Thus, control device 100 determines that storage battery 50 (electric vehicle 40) is not connected to power line E3.

  When the power suppression is started, for example, the control device 100 transmits a power saving instruction to a predetermined number (three as an example) of the household electrical appliances 20 in order from the lowest priority (Sq404 to Sq406). ).

  When the power suppression ends, the control device 100 transmits a power saving cancellation instruction to each home appliance 20 that has transmitted the power saving instruction (Sq407 to Sq409).

  By such control processing, after the power suppression by the DR command is started, the insufficient power can be supplied to the home appliance 20 by discharging the storage battery 50. When the remaining power storage amount of the storage battery 50 decreases, the control device 100 saves power sequentially from the home appliances 20 with the lowest priority based on the degree of the remaining power storage and the preset priority order of each home appliance 20. By giving instructions, power consumption is reduced without compromising comfort. As a result, it is possible to appropriately suppress the power of the commercial power system while maintaining the comfort of the resident.

(Embodiment 2)
In the above embodiment, the case where no power generation is performed on the system side has been described. However, a power generation module that generates power based on natural energy may be added to the system. Hereinafter, with reference to FIG. 10, the energy management system 2 which concerns on Embodiment 2 of this invention is demonstrated.

  As illustrated, the energy management system 2 includes a distribution board 10, a plurality of home appliances 20, a power conditioner 70, an electric vehicle 40 (storage battery 50), a solar power generation module 60, and a control device 100. . That is, the energy management system 2 adds the photovoltaic power generation module 60 to the energy management system 1 in FIG. 1 described above, and changes the power conditioner 30 to the power conditioner 70. Other configurations are the same as described above.

  The photovoltaic power generation module 60 is a photovoltaic power generation device that converts light energy into electric power. The electric power generated by the solar power generation module 60 is supplied to the power conditioner 70 through the power line E4. The solar power generation module 60 is an example, and may be a power generation module that generates power using natural energy such as wind power, geothermal heat, or tidal power.

  In addition to the function of the power conditioner 30 described above, the power conditioner 70 charges the storage battery 50 with the power generated by the solar power generation module 60. For example, the power conditioner 70 can charge the storage battery 50 with the power generated by the solar power generation module 60 even when the storage battery 50 is discharged.

  As described above, in the energy management system 2 of FIG. 10, power generation is possible on the system side. Therefore, as shown in the graph of FIG. 11, for example, as shown in the graph of FIG. It may increase. In the following, a case where the power consumption of the home appliance 20 is suppressed based on the relationship between the remaining amount of electricity stored in the storage battery 50 and the threshold value will be described. However, as shown in FIG. This is also applicable to the case where the power consumption of the home appliance 20 is suppressed based on the predicted remaining power storage amount. When power suppression is started at time T <b> 1 in FIG. 11, the control unit 124 starts comparing the remaining power storage amount with the threshold 1. It is assumed that the weather is initially bad (rainy weather etc.). And if the electrical storage residual amount falls below the threshold value 1 at the time T2, the control part 124 will transmit a power-saving instruction | indication to the household appliances 20 with the lowest priority, and will suppress power consumption. Thereafter, the control unit 124 starts not only the comparison between the remaining power storage and the threshold 2 but also the comparison between the remaining power storage and the threshold 1. When the weather improves and the remaining amount of power storage exceeds the threshold value 1 at time T3, the control unit 124 transmits a power saving cancellation instruction to the home appliance 20 that has transmitted the power saving instruction at time T2. After that, when the weather worsens and the remaining power level falls below the threshold value 1 again at time T4, the control unit 124 transmits a power saving instruction to the home appliance 20 having the lowest priority, and suppresses power consumption. When the power suppression ends at time T4, the control unit 124 transmits a power saving cancellation instruction to the home appliance 20 that has transmitted the power saving instruction.

  As described above, after the power suppression by the DR command is started, the insufficient power can be supplied to the home appliance 20 by discharging the storage battery 50. Similarly to the above, when the remaining power storage amount of the storage battery 50 decreases, the control device 100 causes the home appliance 20 with a low priority based on the degree of the remaining power storage and the preset priority of each home appliance 20. Power consumption is suppressed by issuing power saving instructions in order. And if the remaining electrical storage amount of the storage battery 50 increases, the control apparatus 100 will issue a power-saving cancellation | release instruction | indication. As a result, also in Embodiment 2 of the present invention, it is possible to appropriately suppress the power of the commercial power system while maintaining the comfort of the occupants.

  In the above-described embodiment, the case where the present invention is applied to the control device 100 and the like has been described. However, the present invention can be realized using a normal computer system without using a dedicated system. For example, a computer program for executing the above operation is stored and distributed on a computer-readable recording medium (flexible disk, CD-ROM, DVD-ROM, etc.), and the computer program is installed in the computer. Thus, the communication device 100 that executes the above-described processing may be configured. Alternatively, the control device 100 may be configured by storing the computer program in a storage device included in a server device on a communication network such as the Internet and downloading it by a normal computer system.

  Further, when the functions of the control device 100 are realized by sharing of an OS (operating system) and an application program or by cooperation between the OS and the application program, only the application program portion is stored in a recording medium or a storage device. May be.

  It is also possible to superimpose a computer program on a carrier wave and distribute it via a communication network. For example, the computer program may be posted on a bulletin board (BBS, Bulletin Board System) on a communication network, and the computer program distributed via the network. The computer program may be started and executed in the same manner as other application programs under the control of the OS, so that the above-described processing may be executed.

  The present invention can be suitably employed in a control device, an energy management system, a control method, and a program that can appropriately perform power suppression of a commercial power system while maintaining the comfort of a resident.

  1, 2, Energy management system, 10 Distribution board, 20 Home appliance, 30, 70 Power conditioner, 40 Electric vehicle, 50 Storage battery, 60 Solar power generation module, 90 External network, 100 Control device, 110 External communication unit, 120 Arithmetic processing unit 121 reception unit 122 instruction unit 123 acquisition unit 124 control unit 130 storage unit 140 timing unit 150 internal communication unit

Claims (8)

A control device for controlling home appliances that consume power supplied from an electric power system and a storage battery,
A receiving unit that receives the suppression command of the power system transmitted from the outside;
In accordance with the suppression command received by the receiving unit, an instruction unit for instructing discharge of the storage battery,
An acquisition unit that acquires the remaining amount of electricity stored in the storage battery instructed to be discharged by the instruction unit;
A control unit that suppresses the power consumed by the home appliance based on the remaining power amount acquired by the acquisition unit , and
The suppression command received by the receiving unit includes a suppression end time,
The control unit predicts a remaining power amount based on the suppression end time, and suppresses power consumed by the home appliance based on the predicted remaining power amount.
Control apparatus. A plurality of the home appliances are used, and each home appliance has a preset order of preference for operation,
The said control part is a control apparatus of Claim 1 which suppresses the electric power which the said corresponding household appliances consume in order with the said low priority. The acquisition unit sequentially acquires the remaining power amount until the suppression end time ,
The control unit, on the basis of the relationship between the remaining power amount with a predetermined threshold value, suppresses the power which the home appliance consumes, the control device according to claim 1 or 2. Before SL control unit, based on a change of the remaining power amount in a certain period, it predicts the remaining power amount based on the suppression end time, the control device according to any one of claims 1 to 3. It further includes a power generation unit that generates power based on natural energy,
The power generation unit supplies the generated power to the storage battery for charging,
Wherein the control unit predicts the remaining power amount in the suppression end time, including power that will be charged by the power generation unit, the control apparatus according to any one of claims 1 to 4. An energy management system including a storage battery, a power conditioner that controls the storage battery, a home appliance that consumes power supplied from the power system and the storage battery, and a control device that controls the home appliance,
The controller is
A receiving unit that receives the suppression command of the power system transmitted from the outside;
In accordance with the suppression command received by the receiving unit, an instruction unit for instructing the power conditioner to discharge the storage battery,
An acquisition unit for acquiring from the power conditioner the remaining storage amount of the storage battery that the instruction unit has instructed to discharge;
A control unit that suppresses the power consumed by the home appliance based on the remaining power amount acquired by the acquisition unit , and
The suppression command received by the receiving unit includes a suppression end time,
The control unit predicts a remaining power amount based on the suppression end time, and suppresses power consumed by the home appliance based on the predicted remaining power amount.
D Nerugi over management systems. A control method of a control device for controlling home appliances that consume power supplied from an electric power system and a storage battery,
A reception step of receiving an instruction to suppress the power system transmitted from the outside;
Instructing to discharge the storage battery according to the suppression command received in the receiving step;
An acquisition step of acquiring a remaining power storage amount of the storage battery instructed to discharge in the instruction step;
A control step of suppressing the power consumed by the home appliance based on the remaining amount of electricity acquired in the acquisition step ,
The suppression command received in the receiving step includes a suppression end time,
In the control step, the remaining power level is predicted based on the suppression end time, and the power consumed by the home appliance is suppressed based on the predicted remaining power level,
Control method. A computer that controls home appliances that consume power supplied from the power system and storage battery,
A receiving unit that receives the suppression command of the power system, transmitted from the outside,
In accordance with the suppression command received by the receiving unit, an instruction unit for instructing discharge of the storage battery,
An acquisition unit for acquiring a remaining power storage amount of the storage battery instructed to be discharged by the instruction unit;
Based on the remaining amount of electricity acquired by the acquisition unit, function as a control unit that suppresses the power consumed by the home appliance ,
The suppression command received by the receiving unit includes a suppression end time,
The control unit predicts a remaining power amount based on the suppression end time, and suppresses power consumed by the home appliance based on the predicted remaining power amount.
Program.

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