JP6692316B2 - Control device, control method, and control program - Google Patents

Description

  Embodiments of the present invention relate to a control device, a control method, and a control program.

  In recent years, smart electric energy meters (hereinafter, smart meters) that digitally measure electric power and have a communication function have become widespread. An electric power company can remotely operate a smart meter for various purposes such as measuring the amount of electric power with a smart meter at a customer's house and stopping and restoring power supply via a dedicated network. ..

  In addition, a smart meter uses a communication protocol called ECHONET Lite on a transmission medium such as a 920 MHz band radio or PLC (Power Line Communication) from a HEMS controller owned by a customer in a customer's house to use an instantaneous value. It is possible to acquire the data provided by smart meters such as and the integrated value.

  In consideration of the spread of such a communication environment, a mechanism called VPP (Virtual Power Plant), which utilizes equipment such as energy equipment of customers as a system adjustment capacity, has been attracting attention as a national energy policy.

  In VPP, power generation equipment, storage batteries, fuel cells, solar power generation, negative watt devices (such as load home appliances) placed on the customer's house or on the land of the contractor based on a contract with the customer via an intermediary called an aggregator. We aim to realize a virtual power plant that can utilize the surplus power from the customer side as a function to adjust the system by constructing a network system that controls the power supply.

  Specifically, in the VPP, based on a request from a power company, an aggregator instructs a device held by a contractor to charge (consumer) and discharge (generate power), and to supply power (amount) as necessary. Provide a mechanism to commit the to the system. The aggregator is connected to the energy equipment via the HEMS controller in the house.

  The VPP also provides a mechanism for the supply side to adjust the supply and reception by controlling the power consumption on the demand side. In this case, the aggregator issues a power consumption control request (DR: Demand Response) command to the HEMS controller of the customer so that the aggregator closes the gap between the demand and the supply based on a request from the power company on the supply side. Then, the power consumption of the consumer device is controlled.

  For example, when the reverse flow rate due to solar power generation excessively increases in a certain area, the electric power company raises the electric power value to the customer at the designated time to increase the demand for the target electric power amount. Reserve issuance of the DR command. Upon receiving the reservation to issue the DR command, the HEMS controller of the customer issues a DR command for switching the power value of the electric device in the customer's house to the requested power value and notifies the electric device. After that, when the consumption of the predetermined amount of power is increased, the HEMS controller determines that the target has been achieved, and instructs the electric device to end the DR command.

Demand Response (Negawatt Trading) Handbook, [online], [Search March 17, 2017], Internet <URL: http://www.meti.go.jp/press/2016/12/20161228004/20161228004-1 .pdf>

  By the way, when the DR command end instruction is not delivered to the electric device due to a communication failure or the like, the electric power value of the electric device remains increased, so that the electric power amount exceeding the target electric power amount is consumed. Will be done. In such a case, there is a problem that a higher-level device such as an aggregator may not be able to grasp the excess power consumption amount that has occurred due to a communication failure or the like.

  The control device of the embodiment is a control device that controls power consumption of a consumer's device, and receives a power consumption control request to increase the power consumption of the device within a predetermined period by a predetermined power amount. In this case, based on the power consumption control request, an issuing unit that issues a command for instructing an operation to increase the power consumption of the device; the consumption of the device when a predetermined period has elapsed since the command was issued. An instruction unit for instructing the end of the operation for increasing the power; calculating a difference between the power consumption when the device instructs the operation for increasing the power consumption and the power consumption when instructing the end of the operation for increasing the power consumption A calculating unit; and a notifying unit that notifies the external higher-level device of the excess power consumption amount when the difference is larger than the predetermined power amount.

  With the control device, the control method, and the control program according to the embodiment, the host device can grasp the excess power consumption amount caused by the cause of the communication failure or the like.

FIG. 1 is a diagram illustrating a configuration example of a communication system according to the first embodiment. FIG. 2 is a diagram illustrating an example of the configuration of the HEMS controller according to the first embodiment. FIG. 3 is a diagram illustrating an example of data stored in the DR command storage unit. FIG. 4 is a sequence diagram showing an example of operation in the communication system according to the first exemplary embodiment.

  The HEMS controller 14 according to the embodiment described below includes an issuing unit 142a, an instruction unit 142b, a calculation unit 142c, and a notification unit 142d. When the issuing unit 142a receives the power consumption control request to increase the power consumption of the electric device 16 within the predetermined period by the predetermined power amount, the issuing unit 142a consumes the electric device 16 based on the power consumption control request. Issue a DR command to instruct the operation to increase the power. The instruction unit 142b instructs the end of the operation of increasing the power consumption of the electric device 16 when a predetermined period has elapsed since the DR command was issued. The calculation unit 142c calculates the difference between the power consumption amount when the electric device 16 instructs the operation to increase the power consumption and the power consumption amount when the end of the operation to increase the power consumption is instructed. When the difference is larger than the predetermined power amount, the notification unit 142d notifies the aggregator 12 of the excess power consumption amount.

  Further, the notification unit 142d according to the embodiment described below notifies the excess power consumption amount and the cause of the excess of the power consumption amount.

  The control method according to the embodiment described below is a control method executed by the HEMS controller 14, and includes an issuing step, an instructing step, a calculating step, and a notifying step. In the issuing step, when the power consumption control request for increasing the power consumption of the electric device 16 within the predetermined period by the predetermined power amount is received, the power consumption of the electric device 16 is determined based on the power consumption control request. A DR command is issued to instruct a raising operation. The instructing step instructs the end of the operation of increasing the power consumption of the electric device 16 when a predetermined period has elapsed since the DR command was issued. The calculation step calculates a difference between the power consumption when the electric device 16 gives an instruction to increase the power consumption and the power consumption when giving an instruction to end the operation to increase the power consumption. The notification step notifies the aggregator 12 of the excess power consumption amount when the difference is larger than the predetermined power amount.

  Further, the control program according to the embodiment described below executes an issuing procedure, an instruction procedure, a calculation procedure, and a notification procedure. The issuing procedure is such that when a power consumption control request to increase the power consumption of the electric device 16 within a predetermined period by a predetermined power amount is received, the power consumption of the electric device 16 is based on the power consumption control request. A DR command is issued to instruct a raising operation. The instruction procedure gives an instruction to end the operation of increasing the power consumption of the electric device 16 when a predetermined period has elapsed since the DR command was issued. The calculation procedure calculates a difference between the power consumption when the electric device 16 gives an instruction to increase the power consumption and the power consumption when giving an instruction to end the operation to increase the power consumption. The notification procedure notifies the aggregator 12 of the excess power consumption amount when the difference is larger than the predetermined power amount.

  Hereinafter, a communication system according to an embodiment will be described with reference to the drawings. In the embodiments, the same reference numerals are given to the same parts, and duplicate explanations are omitted.

(First embodiment)
First, the communication system according to the first embodiment will be described with reference to FIGS.

[Communication system configuration]
FIG. 1 is a diagram illustrating a configuration example of a communication system 1 according to the first embodiment. The communication system 1 includes a server device of an electric power company (hereinafter referred to as an electric power company) 11, a server device of an aggregator (hereinafter referred to as an aggregator) 12, an EMS (Energy Management System) cloud 13, a HEMS controller 14, a smart meter (electric power measurement). Container 15, an electric device 16, and a storage battery 17. In the example of FIG. 1, the HEMS controller 14, the smart meter 15, the electric device 16, and the storage battery 17 are installed in the contractor's house H.

  The electric power company 11 is a server device of the electric power company. The aggregator 12 is a server device that acts as an intermediary between a power company and a contractor, and executes control instructions for the electric device 16 and the storage battery 17. For example, the aggregator 12 requests the HEMS controller 14 to reserve the issuance of the DR command to increase the power consumption of the electric device 16 within the predetermined period by the predetermined power amount.

  The EMS cloud 13 collects power data and the like acquired from the contractor's HEMS controller 14. The EMS cloud 13 provides the contractor with a graph (visualization) of the amount of power used and a remote control function of the device. The EMS cloud 13 has a function of collectively committing surplus power of a contractor (consumer) to the aggregator 12 as a control target.

  When the HEMS controller 14 receives the issuance reservation of the DR command for increasing the power consumption of the electric device 16, the HEMS controller 14 issues the DR command for increasing the power consumption value of the electric device 16 at the designated time and sends the DR command to the electric device 16. Notice. Further, the HEMS controller 14 instructs the end of the operation of increasing the power consumption of the electric device 16 when a predetermined period has elapsed since the DR command was issued. Further, the HEMS controller 14 calculates the difference between the power consumption amount when the electric device 16 instructs the operation of increasing the power consumption and the power consumption amount when the end of the operation of increasing the power consumption is instructed. Then, when the difference is larger than the predetermined power amount, the HEMS controller 14 notifies the aggregator 12 of the excess power consumption amount.

  The smart meter 15 measures the power supplied from the power system, that is, the power purchased from the power system and the power supplied to the power system side, that is, the sold power. The electric device 16 is an air conditioner, a lighting device, or the like installed in the contractor's house. Further, the electric device 16 increases the power consumption value based on the DR command from the HEMS controller 14. For example, taking the case where the electric device 16 is the air conditioner 16A as an example, the air conditioner 16A raises the power consumption value by raising the temperature of heating or lowering the temperature of cooling. The operating state and the power consumption value of the electric device 16 are acquired by the HEMS controller 14 at regular intervals (for example, 30 minutes) via a communication protocol such as ECHONET Lite.

  The storage battery 17 is a secondary battery (battery) installed in the contractor's house. For example, the storage battery 17 is charged by the electric power supplied from the electric power system or the electric power generated by the solar panel. Further, for example, the storage battery 17 supplies electric power to the electric device 16 installed in the contractor's house.

[Configuration of HEMS controller]
The configuration of the HEMS controller 14 will be described with reference to FIG. FIG. 2 is a diagram showing an example of the configuration of the HEMS controller 14 according to the first embodiment. The HEMS controller 14 includes a communication unit 141, a control unit 142, and a storage unit 143.

  The communication unit 141 is a network device for performing wireless communication processing and wired communication processing. Specifically, the communication unit 141 transmits / receives various information to / from the aggregator 12 and the like illustrated in FIG. 1 by wireless communication. For example, the communication unit 141 receives the VPP instruction from the aggregator 12 via the EMS cloud 13.

  The storage unit 143 is realized by, for example, a semiconductor memory device such as a RAM (Random Access Memory) or a flash memory (Flash Memory), or a storage device such as a hard disk or an optical disk. The storage unit 143 includes a DR command storage unit 143a.

  The DR command storage unit 143a stores information included in the DR command issue reservation request transmitted from the aggregator 12. For example, as illustrated in FIG. 3, the DR command storage unit 143a includes a “DR command ID” that is an identifier for the DR command, a “start time” that is a time at which control by the DR command is started, and control by the DR command. The “end time”, which is the time at which is ended, and the “power amount” indicating the target increased power amount in the DR command are stored in association with each other. The start time and the end time may be determined by the electric power company 11 or the aggregator 12 side, or may be determined by the HEMS controller 14 side.

  The DR command ID “G” in FIG. 3 is an identifier for the DR command reserved for issuance by the aggregator 12. Further, in the example of FIG. 3, the DR command storage unit 143a stores information about the DR command for increasing the power consumption amount of the power amount X [Wh] in the period from the start time t1 to the end time t2.

  The control unit 142 has an issuing unit 142a, an instruction unit 142b, a calculation unit 142c, and a notification unit 142d. The control unit 142 is, for example, an electronic circuit such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit) or an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array), and the HEMS controller 14 Execute the overall control of.

  When the issuing unit 142a receives a request to reserve the issuance of a DR command to increase the power consumption of the electric device 16 within a predetermined period by a predetermined power amount, the issuing unit 142a consumes the electric device 16 based on the request. Issue a DR command to instruct the operation to increase the power. For example, in the period from the start time t1 to the end time t2, the issuing unit 142a receives from the aggregator 12 a request to reserve the issuance of the DR command that increases the power consumption amount of the power amount X [Wh], and then starts the start time. At t1, the DR command for switching the electric power value x [W] of the electric device 16 to the electric power value y [W] is issued and the electric device 16 is notified. Note that how to switch the power value of the electric device 16 may be determined by the aggregator 12 or the EMS cloud 13, or may be determined by the HEMS controller 14.

  The instruction unit 142b instructs the end of the operation of increasing the power consumption of the electric device 16 when a predetermined period has elapsed since the DR command was issued. For example, the instruction unit 142b instructs the electric device 16 to end the operation of increasing the power consumption of the electric device 16 at the end time t2 designated by the aggregator 12. In addition, when the instruction unit 142b receives an end instruction from the EMS cloud 13, the instruction unit 142b may instruct the electric device 16 to end the operation of increasing the power consumption of the electric device 16.

  When it is confirmed that the operation of increasing the power consumption of the electric device 16 is not completed after the end time t2, the instruction unit 142b ends the operation of increasing the power consumption of the electric device 16. Instruct the electric device 16. That is, for example, the communication from the EMS cloud 13 to the HEMS controller 14 or the communication from the HEMS controller 14 to the electric device 16 has failed, and the electric device 16 has not received an instruction to end the operation of increasing the power consumption. In this case, the instruction unit 142b instructs the electric device 16 to end the operation for increasing the power consumption of the electric device 16 as soon as it is confirmed that the operation for increasing the power consumption of the electric device 16 has not ended. ..

  The calculation unit 142c calculates the difference between the power consumption amount when the electric device 16 instructs the operation to increase the power consumption and the power consumption amount when the end of the operation to increase the power consumption is instructed. For example, the calculation unit 142c acquires from the distribution board (not shown) the power consumption amount W1 [Wh] when the electric device 16 gives an instruction to increase the power consumption, and terminates the operation for increasing the power consumption. The power consumption W2 [Wh] at the time of the instruction is also acquired from the distribution board. Then, the calculation unit 142c calculates the difference between the power consumption amount W1 [Wh] and the power consumption amount W2 [Wh].

  When the difference is larger than the predetermined power amount, the notification unit 142d notifies the aggregator 12 of the excess power consumption amount. For example, the notification unit 142d has a value obtained by subtracting the power consumption amount W1 [Wh] when instructing the operation to increase the power consumption from the power consumption amount W2 [Wh] when the operation to increase the power consumption is instructed. , DR command, when it is larger than the target amount of power increase X [Wh], the excess power consumption is notified to the aggregator 12. The notification unit 142d may notify the power company 11 and the EMS cloud 13 of the excess power consumption.

  Further, the notification unit 142d may notify the cause of the excess of the power consumption amount together with the excess power consumption amount. For example, the notification unit 142d instructs that the communication from the EMS cloud 13 to the HEMS controller 14 or the communication from the HEMS controller 14 to the electric device 16 fails, and the operation of increasing the power consumption of the electric device 16 ends. If is not received, the aggregator 12 is notified of the location where the communication failure has occurred. In addition, as another cause, for example, when the user turns off the power of the HEMS controller 14 and the electric device 16 is not instructed to finish the operation of increasing the power consumption, the power is turned on. The aggregator 12 is notified of the absence.

  As described above, the HEMS controller 14 notifies the aggregator 12 of the excess power consumption amount, so that the aggregator 12 can grasp the excess power consumption amount caused by the communication failure or the like. For example, the electric power company 11 and the aggregator 12 can make adjustments such as reducing the electricity charge in consideration of the electric power consumed by the user. Further, the HEMS controller 14 notifies the aggregator 12 of the cause of the excess of the power consumption so that the aggregator 12 can also grasp the cause of the excess of the power consumption.

[Processing procedure of communication system]
Next, an operation example in the communication system 1 will be described with reference to FIG. FIG. 4 is a sequence diagram showing an example of operation in the communication system according to the first exemplary embodiment. In the example of FIG. 14, the air conditioner 16A will be described as an example of the electric device 16. As shown in FIG. 4, the HEMS controller 14 of the communication system 1 requests the operating state and the power consumption value from the air conditioner 16A (step S101), grasps the state of the storage battery 17 (step S102), and then the EMS cloud. Information about the operating state and the power consumption value of the storage battery 17 is notified to the server 13 (step S103). Note that the processing of steps S101 to S103 is assumed to be performed regularly.

  The aggregator 12 requests the HEMS controller 14 via the EMS cloud 13 to issue a DR command reservation to increase the power consumption of the electric device 16 within a predetermined period by a predetermined power amount. (Step S104). When the HEMS controller 14 receives the issuance reservation of the DR command for increasing the power consumption of the electric device 16, the HEMS controller 14 issues the DR command for increasing the power consumption value of the electric device 16 at the designated time (step S105), and sends the electric device 16 to the electric device 16. The DR command is notified (step S106). For example, the HEMS controller 14 gives an instruction to start discharging the storage battery 17 at the start time t1.

  Then, at the end time, the EMS cloud 13 instructs the air conditioner 16A to end the operation of increasing the power consumption of the air conditioner 16A via the HEMS controller 14 (step S107), but here, the communication fails. The operation of increasing the power consumption of the air conditioner 16A cannot be stopped, and the operation is continued with the increased power consumption.

  After that, if it is confirmed that the operation of increasing the power consumption of the electric device 16 is not completed after the end time has passed, the HEMS controller 14 performs the end of the operation of increasing the power consumption of the electric device 16. The device 16 is instructed (step S108).

  Then, the HEMS controller 14 calculates the difference between the power consumption amount when the electric device 16 instructs the operation of increasing the power consumption and the power consumption amount when the end of the operation of increasing the power consumption is instructed (step S109).

  Then, if the difference is larger than the predetermined power amount, the HEMS controller 14 notifies the aggregator 12 of the excess power consumption amount via the EMS cloud 13 (step S110). For example, the HEMS controller 14 has a value obtained by subtracting the power consumption amount W1 [Wh] when instructing the operation of increasing the power consumption from the power consumption amount W2 [Wh] when instructing to end the operation of increasing the power consumption. , DR command, when it is larger than the target amount of power increase X [Wh], the excess power consumption is notified to the aggregator 12. Further, the HEMS controller 14 may notify the cause of the excess of the power consumption amount together with the excess power consumption amount.

[Effects of First Embodiment]
As described above, the HEMS controller 14 according to the first embodiment includes the issuing unit 142a, the instruction unit 142b, the calculation unit 142c, and the notification unit 142d. When the issuing unit 142a receives the power consumption control request to increase the power consumption of the electric device 16 within the predetermined period by the predetermined power amount, the issuing unit 142a consumes the electric device 16 based on the power consumption control request. Issue a DR command to instruct the operation to increase the power. The instruction unit 142b instructs the end of the operation of increasing the power consumption of the electric device 16 when a predetermined period has elapsed since the DR command was issued. The calculation unit 142c calculates the difference between the power consumption amount when the electric device 16 instructs the operation of increasing the power consumption and the power consumption amount when the end of the operation of increasing the power consumption is instructed. When the difference is larger than the predetermined power amount, the notification unit 142d notifies the aggregator 12 of the excess power consumption amount.

  Therefore, in the HEMS controller 14 according to the first embodiment, the aggregator 12 can recognize the excess power consumption amount that has occurred due to a communication failure or the like. That is, the HEMS controller 14 notifies the aggregator 12 of the excess power consumption amount, so that the aggregator 12 can recognize the excess power consumption amount caused by the communication failure or the like. For example, the electric power company 11 and the aggregator 12 can make adjustments such as reducing the electricity charge in consideration of the electric power consumed by the user.

  Further, the notification unit 142d of the HEMS controller 14 notifies the excess power consumption and the cause of the excess of the power consumption. For this reason, the aggregator 12 can also grasp the cause of the excess of the power consumption.

  Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It is obvious to those skilled in the art that various changes or improvements can be added to the above-described embodiment. It is also apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

1 Communication System 11 Electric Power Company 12 Aggregator 13 EMS Cloud 14 HEMS Controller 15 Smart Meter 16 Electric Device 17 Storage Battery 141 Communication Unit 142 Control Unit 142a Issuing Unit 142b Instructing Unit 142c Computing Unit 142d Notification Unit 143 Storage Unit 143a DR Command Storage Unit

Claims (4)

A control device for controlling power consumption of equipment of a consumer,
When a power consumption control request for increasing the power consumption of the device within a predetermined period by a predetermined power amount is received, an operation to increase the power consumption of the device is instructed based on the power consumption control request. An issuer that issues commands;
An instruction unit for instructing to end the operation for increasing the power consumption of the device when a predetermined period has elapsed since the command was issued;
A calculation unit for calculating a difference between the power consumption when the device gives an instruction to increase the power consumption and the power consumption when giving an instruction to end the operation to increase the power consumption;
If the difference is larger than the predetermined power amount, a notification unit that notifies the external higher level device of the excess power consumption amount;
A control device comprising:   The control device according to claim 1, wherein the notification unit notifies the excess power consumption amount and a cause of the excess power consumption amount. A control method executed by a control device,
When a power consumption control request for increasing the power consumption of a consumer's device within a predetermined period by a predetermined power amount is received, an operation of increasing the power consumption of the device based on the power consumption control request is performed. An issuing step of issuing a command to instruct;
An instructing step for instructing to end the operation for increasing the power consumption of the device when a predetermined period has elapsed since the command was issued;
A step of calculating a difference between the power consumption when the device gives an instruction to increase the power consumption and the power consumption when giving an instruction to end the operation to increase the power consumption;
If the difference is larger than the predetermined power amount, a notification step of notifying the external higher level device of the excess power consumption amount;
Control method including. On the computer,
When a power consumption control request for increasing the power consumption of a consumer's device within a predetermined period by a predetermined power amount is received, an operation of increasing the power consumption of the device based on the power consumption control request is performed. An issuing procedure for issuing a command to instruct;
An instruction procedure for instructing to end the operation for increasing the power consumption of the device when a predetermined period has elapsed since the command was issued;
A calculation procedure for calculating a difference between the power consumption when the device gives an instruction to increase the power consumption and the power consumption when giving an instruction to end the operation to increase the power consumption;
If the difference is larger than the predetermined power amount, a notification procedure of notifying the external higher level device of the excess power consumption amount;
A control program to execute.

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