JP2023160988A - Power control system, apparatus, control method, and program - Google Patents

Abstract

To more flexibly control the stop and start-up of apparatuses in a predetermined area.SOLUTION: A first power control device 10 includes: apparatuses 30 in a predetermined area; and a first power control device 10. When the first power control device 10 stops the apparatuses 30 in response to the occurrence of a predetermined event, it transmits a stop instruction including an event ID corresponding to the predetermined event to the apparatuses 30. When the first power control device 10 starts up the apparatuses 30 that are stopped in response to the occurrence of the predetermined event, it transmits a start-up instruction including the event ID corresponding to the predetermined event to the apparatuses 30. When the event ID included in the start-up instruction received while the apparatus 30 are stopped in accordance with the stop instruction matches the event ID included in the stop instruction, the apparatuses begin the start-up. When the event ID included in the start-up instruction received while the apparatus 30 are stopped in accordance with the stop instruction does not match the event ID included in the stop instruction, the apparatuses stay in the stopped state.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a power control system, equipment, control method, and program.

In recent years, electric power companies that manage electricity supply and demand within a given area have been required to submit electricity procurement plans to wide-area organizations and, in accordance with this procurement plan, have actual values for the planned area be shared at the same time. . There is a system that controls power demand within a predetermined area (for example, see Patent Document 1).

JP 2019-126157 Publication

In the above-described system, a power control device that controls power in a predetermined area controls stopping and starting of devices in response to occurrence of an event such as a failure of a device in the predetermined area. When a device is stopped in response to the occurrence of an event, it is desirable to start the device as soon as the event that caused the device to stop is resolved. In other words, it is desirable to be able to more flexibly control the stopping and starting of devices.

An object of the present disclosure is to provide a power control system, equipment, control method, and program that can more flexibly control stopping and starting of equipment within a predetermined area.

A power control system according to an embodiment includes a device in a predetermined area and a power control device that controls power in the predetermined area, and the power control device controls the device in response to the occurrence of a predetermined event. When stopping the device, a stop instruction including an identifier corresponding to the predetermined event is sent to the device, and when starting the stopped device in response to the occurrence of the predetermined event, an identifier corresponding to the predetermined event is sent to the device. and the device starts startup if an identifier included in the startup instruction received while the device is stopped according to the stop instruction matches an identifier included in the stop instruction. However, if the identifier included in the startup instruction received while the device is stopped according to the stop instruction does not match the identifier included in the stop instruction, the device maintains the stopped state.

Further, the device according to one embodiment is a device in a predetermined area where a power control device controls power, and the device is configured to receive a signal transmitted from the power control device to cause the device to stop in response to the occurrence of the predetermined event. a control unit configured to stop the device upon receiving a stop instruction including an identifier corresponding to the predetermined event; When receiving a startup instruction that is transmitted and includes an identifier corresponding to the predetermined event and instructs to start up the device that was stopped in response to the occurrence of the predetermined event, the identifier included in the stop instruction and the start instruction are received. If the identifier included in the startup instruction received while the device is started and stopped according to the stop instruction does not match the identifier included in the stop instruction, Maintaining the stopped state of the equipment.

Further, a method for controlling equipment according to an embodiment is a method for controlling equipment within a predetermined area where a power control device controls power, the method being a method for controlling equipment in a predetermined area where power is controlled by a power control device, and in response to occurrence of the predetermined event that is transmitted from the power control device. instructs the device to stop, and upon receiving a stop instruction including an identifier corresponding to the predetermined event, causes the device to stop, and while the device is stopped according to the stop instruction, is transmitted from the power control device, Instructing to start up the device that has been stopped in response to the occurrence of the predetermined event, and upon receiving a start instruction including an identifier corresponding to the predetermined event, an identifier included in the stop instruction and an identifier included in the start instruction. If the identifiers match, start the device, and if the identifier included in the startup instruction received while stopping according to the stop instruction does not match the identifier included in the stop instruction, start the device. Stay stopped.

Further, the program according to one embodiment is transmitted from the power control device to a computer of a device within a predetermined area where the power control device controls power, and causes the device to stop in response to the occurrence of the predetermined event. Upon receiving a stop instruction including an identifier corresponding to the predetermined event, the device is stopped according to the stop instruction, and while the device is stopped according to the stop instruction, the device is sent from the power control device and receives the predetermined event. instructs to start the device that was stopped in response to the occurrence of the event, and when a start instruction including an identifier corresponding to the predetermined event is received, the identifier included in the stop instruction and the identifier included in the start instruction match. If the identifier included in the startup instruction received while the device is started and stopped according to the stop instruction does not match the identifier included in the stop instruction, the device remains stopped. and execute the process.

According to one embodiment, it is possible to provide a power control system, a control method, and a program that can more flexibly control stopping and starting of devices within a predetermined area.

1 is a diagram showing a configuration example of a power control system according to an embodiment of the present invention. FIG. 2 is a diagram showing a configuration example of a first power control device shown in FIG. 1. FIG. FIG. 2 is a diagram showing a configuration example of a second power control device shown in FIG. 1. FIG. FIG. 2 is a diagram showing an example of the configuration of the device shown in FIG. 1. FIG. 2 is a sequence diagram showing an example of the operation of the power control system shown in FIG. 1. FIG. 2 is a sequence diagram showing another example of the operation of the power control system shown in FIG. 1. FIG.

Hereinafter, a power control system, a power control device, a device, a control method, and a program according to one embodiment will be described with reference to the drawings.

FIG. 1 is a diagram showing a configuration example of a power control system 1 according to an embodiment. The power control system 1 according to the present embodiment may configure, for example, an AEMS (Area Energy Management System) that controls power in a predetermined area such as a municipal unit.

As shown in FIG. 1, the power control system 1 according to the present embodiment includes a first power control device 10, a second power control device 20, and a device 30. The first power control device 10 is connected to the second power control device 20. The second power control device 20 is connected to the device 30 via a gateway (GW) 40. The device 30 is provided within a predetermined area where the power control system 1 controls power. Device 30 includes, for example, a solar cell 30A, a power meter 30B, and a power storage device 30C. Although FIG. 1 shows an example in which the second power control device 20 and the device 30 are connected via the GW 40, the present invention is not limited to this. The second power control device 20 and the device 30 may be connected without going through the GW 40.

The first power control device 10 formulates a power procurement plan for a predetermined area, and controls the power in the predetermined area in units of a predetermined period (hereinafter referred to as "demand section") according to the drawn up procurement plan. It is a power control device. The first power control device 10 subtracts the power generation forecast from the power demand forecast in a predetermined area, adds or subtracts a value according to the charging plan and the discharging plan, and creates a procurement plan. The charging plan and the discharging plan are, for example, plans for charging and discharging the power storage device 30C in order to perform peak cutting or peak shifting of power in a predetermined area. The demand period is, for example, 30 minutes.

Further, the first power control device 10 generates a control instruction that instructs the operation of the device 30. For example, first power control device 10 generates a control instruction that instructs charging and discharging of power storage device 30C. Further, the first power control device 10 generates a control instruction (hereinafter referred to as a "stop instruction") to instruct the device 30 to stop, for example, in response to the occurrence of an event such as a failure of the device 30. Further, the first power control device 10 generates, for example, a control instruction (hereinafter referred to as a "startup instruction") that instructs to start up the stopped device 30. The first power control device 10 transmits the generated control instruction to the device 30 via the second power control device 20. The control instructions are transmitted to the device 30 according to a protocol based on the OpenADR (Automated Demand Response) standard, for example.

FIG. 2 is a diagram showing a configuration example of the first power control device 10. As shown in FIG.

The first power control device 10 shown in FIG. 2 includes a storage section 11, a communication section 12, and a control section 13.

The storage unit 11 is a memory that stores various information necessary for the operation of the first power control device 10. The storage unit 11 may store a program according to an embodiment. The storage unit 11 may store various data such as calculation results by the control unit 13. The storage unit 11 can be configured by, for example, a semiconductor memory or a magnetic disk, but is not limited to these, and can be configured by any storage device. The storage unit 11 may be a storage medium such as a memory card inserted into the first power control device 10. The storage unit 11 may be an internal memory of a CPU (Central Processing Unit) used as the control unit 13 described later.

The communication unit 12 is a communication interface having various communication functions including wireless communication. The communication unit 12 realizes communication using various communication methods such as LTE (Long Term Evolution). The communication unit 12 may include, for example, a modem whose communication method is standardized by the International Telecommunication Union Telecommunication Standardization Sector (ITU-T). The communication unit 12 may realize wireless communication using various methods such as WiFi (Wireless Fidelity) or Bluetooth (registered trademark). Various types of information transmitted and received by the communication unit 12 may be stored in the storage unit 11. The communication unit 12 may include an antenna for transmitting and receiving radio waves, a suitable RF (Radio Frequency) unit, and the like. Since the communication unit 12 can be configured using a known technique for performing wireless communication, a more detailed description of the hardware will be omitted.

The communication unit 12 transmits a control instruction to the second power control device 20 under the control of the control unit 13 . The communication unit 12 may transmit the procurement plan, demand forecast, and power generation forecast to the second power control device 20 under the control of the control unit 13 . The communication unit 12 may receive performance data indicating the actual value of power demand by the device 30 from the second power control device 20 and output it to the control unit 13 .

The control unit 13 is a controller that controls the operation of the first power control device 10 as a whole. Control unit 13 may include at least one processor, such as a CPU, to provide control and processing capabilities to perform various functions. The control unit 13 may be implemented by one processor or by multiple processors. Control unit 13 may be realized as a single integrated circuit. A processor may be implemented as a plurality of communicatively connected integrated and discrete circuits. The control unit 13 may be configured as a CPU and a program executed by the CPU. The programs executed by the control unit 13 and the results of the processes executed by the control unit 13 may be stored in the storage unit 11.

The control unit 13 may formulate a power procurement plan according to the power demand forecast and power generation forecast in a predetermined area. Control unit 13 controls charging and discharging of power storage device 30C for each demand section according to the procurement plan. The control unit 13 may cause the communication unit 12 to transmit the procurement plan, demand forecast, and power generation forecast to the second power control device 20. The control unit 13 sends control instructions for the device 30, such as a control instruction to control charging and discharging of the power storage device 30C, a stop instruction to stop the device 30, and a start instruction to start the device 30, to the communication unit 12. It is transmitted to the second power control device 20.

Referring again to FIG. 1, the second power control device 20 is configured to have an integrated power control system that adjusts the power demand in a predetermined area so as to reduce the inconsistency (imbalance) between the actual power demand in the predetermined area and the procurement plan. This is a power control device that performs balance adjustment. The second power control device 20 performs imbalance adjustment based on the error between the procurement plan and the actual value of power demand in a predetermined area, depending on whether the procurement plan can be achieved without controlling the charging and discharging of the power storage device 30C. Determine whether or not to do so. When determining that imbalance adjustment is to be performed, second power control device 20 controls charging and discharging of power storage device 30C in units of a predetermined period (for example, one minute) that is shorter than the demand interval.

Further, the second power control device 20 receives a control instruction for the device 30 transmitted from the first power control device 10, and transmits it to the device 30 via the GW 40. The second power control device 20 also receives the actual value (actual data) of the power demand in the device 30, which is transmitted from the device 30 via the GW 40 at predetermined time intervals (for example, one minute). The second power control device 20 may collect performance data acquired from each device 30 for a predetermined period of time (for example, 30 minutes) and transmit it to the first power control device 10.

FIG. 3 is a diagram showing a configuration example of the second power control device 20. As shown in FIG.

The second power control device 20 shown in FIG. 3 includes a storage section 21, communication sections 22 and 23, and a control section 24.

The storage unit 21 is a memory that stores various information necessary for the operation of the second power control device 20. The storage unit 21 may store various data such as calculation results by the control unit 24. The storage unit 21 can be configured by, for example, a semiconductor memory or a magnetic disk, but is not limited to these, and can be configured by any storage device. The storage unit 21 may be a storage medium such as a memory card inserted into the second power control device 20. The storage unit 21 may be an internal memory of a CPU used as a control unit 24, which will be described later.

The communication unit 22 is a communication interface having a communication function using a communication method corresponding to the communication method of the communication unit 12.

The communication unit 22 receives the control instruction transmitted from the first power control device 10 and outputs it to the control unit 24 . The communication unit 22 may receive the procurement plan, demand forecast, and power generation forecast transmitted from the first power control device 10 and output them to the control unit 24 . Under the control of the control unit 24, the communication unit 22 may compile performance data of the power demand of the devices 30 for a predetermined period of time (for example, 30 minutes) and transmit it to the first power control device 10.

The communication unit 23 is a communication interface having various communication functions including wireless communication. The communication unit 23 realizes communication using various communication methods such as LTE, for example. The communication unit 23 may include, for example, a modem whose communication method is standardized by ITU-T. The communication unit 23 may implement wireless communication using various methods such as WiFi or Bluetooth (registered trademark). Various types of information transmitted and received by the communication unit 23 may be stored in the storage unit 21. The communication unit 23 may include an antenna for transmitting and receiving radio waves, a suitable RF unit, and the like. Since the communication unit 23 can be configured using a known technique for performing wireless communication, a more detailed description of the hardware will be omitted. In addition, in this embodiment, although the communication part 22 and the communication part 23 are described separately, it is not limited to this. The communication unit 22 and the communication unit 23 may be composed of one communication module.

The communication unit 23 transmits control instructions to the device 30 under the control of the control unit 24 . The communication unit 23 may also receive power demand performance data transmitted from the device 30 via the GW 40 and output it to the control unit 24 .

The control unit 24 is a controller that controls the operation of the second power control device 20 as a whole. Control unit 24 may include at least one processor, such as a CPU, to provide control and processing power to perform various functions. The control unit 24 may be implemented by one processor or by multiple processors. Control unit 24 may be implemented as a single integrated circuit. A processor may be implemented as a plurality of communicatively connected integrated and discrete circuits. The control unit 24 may be configured as a CPU and a program executed by the CPU. The program executed by the control unit 24 and the results of the processing executed by the control unit 24 may be stored in the storage unit 21.

When a control instruction is output from the communication section 22 to the device 30, the control section 24 causes the communication section 23 to transmit the control instruction to the device 30 via the GW 40. When the communication unit 23 outputs the performance data of the power demand in the device 30, the control unit 24 may compile the performance data for a predetermined period of time and cause the communication unit 22 to transmit the data to the first power control device 10.

The control unit 24 may determine whether to perform imbalance adjustment based on the procurement plan and actual power demand data (actual value). When determining that the imbalance adjustment is to be performed, the control unit 24 controls charging and discharging of the power storage device 30C in units of a predetermined period (for example, one minute) that is shorter than that of the first power control device 10.

Referring to FIG. 1 again, the device 30 is connected to the second power control device 20 via the GW 40. The device 30 transmits actual power demand data in the device 30 to the second power control device 20 via the GW 40 at predetermined time intervals (for example, every minute). As described above, device 30 includes, for example, solar cell 30A, power meter 30B, and power storage device 30C.

The solar cell 30A converts sunlight energy into DC power. The solar cell 30A is configured such that, for example, power generation units having photoelectric conversion cells are connected in a matrix and output a predetermined direct current. The type of solar cell 30A is not limited as long as it can be photoelectrically converted, such as a silicon-based polycrystalline solar cell, a silicon-based single-crystalline solar cell, or a thin film solar cell such as CIGS.

Power meter 30B measures the amount of power consumed or supplied by the load.

The power storage device 30C includes a storage battery such as a lithium ion battery or a nickel hydride battery. The power storage device 30C can supply power by discharging the charged power. Further, the power storage device 30C can be charged with power supplied from the power system, the solar battery 30A, or the like. The power storage device 30C can be charged and discharged according to control instructions transmitted from the second power control device 20.

FIG. 4 is a diagram showing an example of the configuration of the device 30. As described above, the equipment 30 includes various equipment such as a solar cell 30A, a power meter 30B, and a power storage device 30C. In FIG. 4, only the configuration common to various types of equipment 30 is shown.

The device 30 shown in FIG. 4 includes a storage section 31, a communication section 32, and a control section 33.

The storage unit 31 is a memory that stores various information necessary for the operation of the device 30. The storage unit 31 may store a program according to an embodiment. The storage unit 31 may store various data such as calculation results by the control unit 33. The storage unit 31 can be configured with, for example, a semiconductor memory or a magnetic disk, but is not limited to these, and can be configured with any storage device. The storage unit 31 may be a storage medium such as a memory card inserted into the device 30. The storage unit 31 may be an internal memory of a CPU used as a control unit 33, which will be described later.

The communication unit 32 is a communication interface that has a communication function using a communication method that supports communication with the communication unit 23 via the GW 40.

The communication unit 32 receives the control instruction transmitted from the second power control device 20 and outputs it to the control unit 33. Under the control of the control unit 33, the communication unit 32 may transmit performance data of the power demand in the device 30 to the second power control device 20 via the GW 40 at predetermined time intervals (for example, every minute).

The control unit 33 is a controller that controls the operation of the entire device 30. Control unit 33 may include at least one processor, such as a CPU, to provide control and processing capabilities to perform various functions. The control unit 33 may be implemented by one processor or by multiple processors. The control unit 33 may be realized as a single integrated circuit. A processor may be implemented as a plurality of communicatively connected integrated and discrete circuits. The control unit 33 may be configured as a CPU and a program executed by the CPU. The program executed by the control unit 33 and the results of the processing executed by the control unit 33 may be stored in the storage unit 31.

The control unit 33 receives the control instructions transmitted from the second power control device 20 and operates according to the received control instructions. For example, when the control unit 33 receives a stop instruction as a control instruction, it stops the device 30. Moreover, when the control unit 33 receives a startup instruction while stopping the device 30 according to the stop instruction, it starts the device 30. Further, the control unit 33 may cause the communication unit 32 to transmit actual power demand data of the device 30 to the second power control device 20 at predetermined time intervals.

FIG. 5 is a sequence diagram showing an example of the operation of the power control system 1 according to the present embodiment, and is a diagram for explaining a method of controlling the first power control device 10 as a power control device and the equipment 30.

When the operator of the power control system 1 notifies the occurrence of an event such as a failure of the device 30 (step S101), the first power control device 10 generates a stop instruction to stop the device 30. The first power control device 10 includes an event ID, which is an identifier corresponding to the event that caused the device 30 to stop, in the stop instruction. Further, the first power control device 10 may include a stop period during which the device 30 is stopped in the stop instruction. The stop period is specified by the operator, for example. The first power control device 10 transmits the generated stop instruction to the second power control device 20 (step S102).

The second power control device 20 receives the stop instruction transmitted from the first power control device 10, and transfers it to the device 30 (step S103).

Upon receiving the stop instruction transmitted from the second power control device 20, the device 30 transmits a reception response to the stop instruction to the second power control device 20 (step S104). Furthermore, the device 30 stops its operation in accordance with the stop instruction (step S105).

The second power control device 20 receives the reception response to the stop instruction transmitted from the device 30, and transfers it to the first power control device 10 (step S106).

When the operator notifies that the event that caused the device 30 to stop is resolved (for example, the repair of the failed device 30 is completed) (step S107), the first power control device 10 controls the device 30 that has been stopped. Generate a startup instruction that instructs startup. Here, the first power control device 10 includes in the activation instruction an event ID corresponding to an event that caused the device 30 to stop and has already been resolved. That is, when the first power control device 10 stops and starts the device 30 due to the occurrence of a predetermined event and the cancellation of the event, the first power control device 10 includes the event ID corresponding to the predetermined event in the stop instruction and the start instruction. The first power control device 10 transmits the generated startup instruction to the second power control device 20 (step S108).

The second power control device 20 receives the activation instruction transmitted from the first power control device 10, and transfers it to the device 30 (step S109).

When the device 30 receives the startup instruction transmitted from the second power control device 20, it transmits a reception response to the startup instruction to the second power control device 20 (step S110). The second power control device 20 receives the reception response transmitted from the device 30, and transfers it to the first power control device 10 (step S111).

When the device 30 receives a startup instruction while being stopped according to the stop instruction, it determines whether the event ID included in the stop instruction and the event ID included in the startup instruction match. It is determined whether the event ID included in the stop instruction and the event ID included in the start instruction match (step S112). If the event ID included in the stop instruction and the event ID included in the startup instruction match (step S112: Yes), the device 30 starts startup (step S113). Note that if the stop instruction includes a stop period, the device 30 starts to start up when the stop period expires. However, even if the device 30 is within the stop period, if the event ID included in the stop instruction and the event ID included in the start instruction match, the device 30 starts starting.

If the event ID included in the stop instruction and the event ID included in the start instruction do not match (step S112: No), the device 30 maintains the stopped state (step S114). When the device 30 receives the startup instruction from the second power control device 20 (step S109), the device 30 repeats the processing of step S110 and step S112.

As described above, in the control method for the first power control device 10 according to the present embodiment, when stopping the device 30 in response to the occurrence of a predetermined event, a stop instruction including an identifier (event ID) corresponding to the predetermined event is sent. It includes a step of transmitting to the device 30 (step S102). Further, in the control method of the first power control device 10 according to the present embodiment, when starting the device 30 that has been stopped in response to the occurrence of a predetermined event, the startup includes an identifier (event ID) corresponding to the predetermined event. It includes the step of transmitting the instruction to the device 30 (step 107).

Furthermore, the method for controlling the device 30 according to this embodiment includes the step of stopping the device 30 upon receiving a stop instruction including an identifier (event ID) corresponding to a predetermined event (step 105). Further, in the method for controlling the device 30 according to the present embodiment, when a startup instruction including an identifier (event ID) corresponding to a predetermined event is received while the device 30 is stopped according to the stop instruction, the identifier (event ID) included in the stop instruction is received. If the event ID) and the identifier (event ID) included in the activation instruction match, activation of the device 30 is started.

Conventionally, when stopping the device 30 due to the occurrence of an event such as a failure of the device 30, an operator sets a stop period for stopping the device 30, and a stop instruction including the set stop period is sent to the device 30. The device 30 stops operating during the stop period included in the stop instruction. Here, in general, it is difficult to accurately estimate the time until the event that caused the device 30 to stop is resolved. Therefore, for example, even after the event that caused the device 30 to stop is resolved, the device 30 may remain stopped. Further, for example, the device 30 may start operating even though the event that caused the device 30 to stop has not been resolved.

On the other hand, in this embodiment, if the event ID included in the stop instruction and the event ID included in the start instruction match, the device 30 starts starting. Therefore, it is possible to start the device 30 at any timing regardless of the set stop period, so it is possible to more flexibly control the stop and start of the device 30 within a predetermined area.

In the power control system 1 as shown in FIG. 1, as described above, it is required to achieve the procurement plan without causing an imbalance. On the other hand, in the power control system 1 as shown in FIG. 1, a power rate is imposed according to the peak of power demand in a predetermined area. Therefore, it is necessary to cut or shift peak power demand in order to prevent increases in power rates. If we try to solve these problems using individual measures, the measures for each problem may conflict with each other. Below, the operation of the power control system 1 for preventing an increase in the cost of power charges and occurrence of shift imbalance due to peak power demand will be described with reference to the sequence diagram shown in FIG. 6.

The first power control device 10 creates a procurement plan according to the demand forecast and the power generation forecast (step S201).

The first power control device 10 determines whether a peak of a predetermined value or more occurs in power demand based on the procurement plan (step S202).

If it is determined that a peak occurs in the power demand (step S202: Yes), the first power control device 10 determines that a peak cut is necessary, and controls charging and discharging of the power storage device 30C in order to perform the peak cut. A peak cut operation instruction is formulated (step S203).

If it is determined that a peak does not occur in the power demand (step S202: No), and after formulating a peak cut operation instruction, the first power control device 10 determines whether the power purchase fee is higher than a predetermined value. Determination is made (step S204).

If it is determined that the electricity purchase fee is high (step S204: Yes), the first power control device 10 determines that a peak shift is necessary, and controls charging and discharging of the power storage device 30C in order to perform the peak shift. A peak shift operation instruction is formulated (step S205).

If it is determined that the power rate is not higher than the predetermined value (step S204: No), and after formulating the peak shift operation instruction, the first power control device 10 determines whether both peak cut and peak shift are necessary. It is determined whether or not (step S206).

If it is determined that both a peak cut and a peak shift are necessary (step S206: Yes), the first power control device 10 determines the economic effect of implementing the peak cut operation instruction and the implementation of the peak shift operation instruction. Estimate the economic effects of doing so. The first power control device 10 determines to implement the operation instruction that is economically effective (step S207).

If it is determined that at least one of the peak cut and the peak shift is not necessary (step S206: No), the first power control device 10 determines to implement the planned operation instruction.

The first power control device 10 transmits a control instruction corresponding to the operation instruction determined to be executed to the second power control device 20 (step S208). This control instruction is for controlling charging and discharging of power storage device 30C in order to perform peak cutting or peak shifting. Further, the first power control device 10 transmits the procurement plan, demand forecast, power generation forecast, and prediction error information to the second power control device 20.

Upon receiving the control instruction from the first power control device 10, the second power control device 20 transfers the received control instruction to the power storage device 30C (step S209). Thereby, charging and discharging of power storage device 30C is controlled according to the control instruction, and peak cut or peak shift is performed.

Power meter 30B and power storage device 30C each transmit power demand performance data to second power control device 20 at predetermined time intervals (for example, 1 minute) (steps S210, S211).

The second power control device 20 determines whether imbalance adjustment is necessary based on the procurement plan and the performance data received from each device 30 (step S212).

When determining that imbalance adjustment is necessary (step S212), second power control device 20 transmits a control instruction to control charging and discharging of power storage device 30C to power storage device 30C (step S213). This control instruction is for controlling charging and discharging of power storage device 30C in order to perform imbalance adjustment. If it is determined that imbalance adjustment is not necessary (step S212: No), the second power control device 20 adjusts the imbalance based on the performance data transmitted from the device 30 at predetermined intervals (for example, every minute). Repeat the determination as to whether or not adjustment is necessary.

In FIG. 6, after the first power control device 10 performs charging and discharging control of the power storage device 30C for peak cut or peak shift, the second power control device 20 controls the power storage device 30C for imbalance adjustment. Charge/discharge control is performed. Therefore, it is possible to prevent an increase in power charges and an imbalance due to peak power demand.

As described above, in this embodiment, the power control system 1 includes the devices 30 within a predetermined area and the first power control device 10 as a power control device. When stopping the device 30 in response to the occurrence of a predetermined event, the first power control device 10 transmits a stop instruction including an identifier (event ID) corresponding to the predetermined event to the device 30. Furthermore, when starting the device 30 that has been stopped in response to the occurrence of a predetermined event, the first power control device 10 transmits a startup instruction including an identifier (event ID) corresponding to the predetermined event to the device 30. If the identifier (event ID) included in the activation instruction received while the device 30 is stopped according to the stop instruction matches the identifier (event ID) included in the stop instruction, the device 30 starts activation.

By starting the device 30 when the identifier (event ID) included in the stop instruction matches the identifier (event ID) included in the start instruction, the device 30 can start starting at an arbitrary timing. . Therefore, stopping and starting the devices 30 within a predetermined area can be controlled more flexibly.

Although the embodiments described above have been described as representative examples, it will be apparent to those skilled in the art that many modifications and substitutions can be made within the spirit and scope of this disclosure. Therefore, the present disclosure should not be construed as being limited by the embodiments described above, and various modifications and changes are possible without departing from the scope of the claims. For example, it is possible to combine a plurality of configuration blocks described in the configuration diagram of the embodiment into one, or to divide one configuration block.

The embodiments described above are not limited to implementation as the power control system 1, the first power control device 10, the second power control device 20, and the equipment 30. For example, the embodiments described above may be implemented as a method of controlling a power control device such as the first power control device 10 and a method of controlling the device 30. Further, the embodiments described above may be implemented as a program executed on a computer such as the first power control device 10 or the device 30.

The Sustainable Development Goals (SDGs) are among the 17 international goals adopted at the United Nations Summit in September 2015. The power control system 1 according to one embodiment is designed to meet the goals of 17 goals of the SDGs, such as "7. Affordable and clean energy," "9. Create a foundation for industry and technological innovation," and "11. It can contribute to achieving goals such as ``creating cities where people can continue to live''.

1 Power control system 10 First power control device (power control device)
11 Storage unit 12 Communication unit 13 Control unit 20 Second power control device 21 Storage unit 22 Communication unit 23 Communication unit 24 Control unit 30 Device 31 Storage unit 32 Communication unit 33 Control unit 30A Solar cell 30B Power meter 30C Power storage device 40 Gateway

Claims (5)

equipment within a predetermined area,
and a power control device that controls power in the predetermined area,
The power control device includes:
When stopping the device in response to the occurrence of a predetermined event, transmitting a stop instruction including an identifier corresponding to the predetermined event to the device;
When starting a device that has been stopped in response to the occurrence of the predetermined event, transmitting a startup instruction including an identifier corresponding to the predetermined event to the device;
If the identifier included in the startup instruction received while the device is stopped according to the stop instruction matches the identifier included in the stop instruction, the device starts startup, and while stopped according to the stop instruction A power control system that maintains the device in a stopped state if an identifier included in a startup instruction received in the above does not match an identifier included in the stop instruction. The stop instruction includes a stop period for stopping the device,
The electric power source according to claim 1, wherein the device starts activation even within a stop period included in the stop instruction if an identifier included in the start instruction matches an identifier included in the stop instruction. control system. A device within a predetermined area in which a power control device controls power,
The control unit includes a control unit that is transmitted from the power control device and instructs the device to stop in response to the occurrence of the predetermined event, and stops the device when receiving the stop instruction including an identifier corresponding to the predetermined event. ,
The control unit is configured to respond to the predetermined event by instructing to start the stopped device in response to the occurrence of the predetermined event that is transmitted from the power control device while the device is being stopped according to the stop instruction. When a startup instruction including an identifier is received, if the identifier included in the stop instruction and the identifier included in the startup instruction match, the device is started to start, and the device is received while the device is stopped according to the stop instruction. A device that maintains a stopped state of the device if an identifier included in the start instruction does not match an identifier included in the stop instruction. A method for controlling equipment within a predetermined area in which a power control device controls power, the method comprising:
transmitting from the power control device, instructing the device to stop in response to the occurrence of the predetermined event, and upon receiving a stop instruction including an identifier corresponding to the predetermined event, stopping the device;
a startup instruction that is transmitted from the power control device while being stopped according to the stop instruction, instructs to start the stopped device in response to the occurrence of the predetermined event, and includes an identifier corresponding to the predetermined event; If the identifier included in the stop instruction and the identifier included in the start instruction match, the device is started to start, and the identifier included in the start instruction received while the device is stopped according to the stop instruction is A control method that maintains a stopped state of the device when an identifier included in the stop instruction does not match an identifier included in the stop instruction. to the computers of equipment within a predetermined area where the power control device controls power;
processing that is transmitted from the power control device and instructs the device to stop in response to the occurrence of the predetermined event, and upon receiving the stop instruction including an identifier corresponding to the predetermined event, stops the device;
a startup instruction that is transmitted from the power control device while being stopped according to the stop instruction, instructs to start the stopped device in response to the occurrence of the predetermined event, and includes an identifier corresponding to the predetermined event; If the identifier included in the stop instruction and the identifier included in the start instruction match, the device is started to start, and the identifier included in the start instruction received while the device is stopped according to the stop instruction is If the identifier included in the stop instruction does not match the identifier included in the stop instruction, the program maintains the stopped state of the device.

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