WO2018181732A1 - Power supply control method, second provider server, and control device - Google Patents

Abstract

A power supply control method comprises: a step A in which, of power of reverse power flow with respect to an electric power system from a facility provided with a distributed power supply, a first provider server manages power to which a first price applies; a step B in which, of the power of the reverse power flow, a second provider server manages power to which a second price applies; a step C in which a first message instructing execution of a specific discharge operation, which is a discharge operation of the distributed power supply for which the reverse power flow is allowed, is transmitted from the second provider server to a control device for controlling the distributed power supply; and a step D in which a second message notifying that instructions have been issued to execute the specific discharge operation is transmitted from the second provider server to the first provider server. The second price is applied to the power of the reverse power flow that is generated by execution of the specific discharge operation.

Description

Power control method, second operator server, and control device

The present invention is a technology relating to a power control method, a second operator server, and a control device.

2. Description of the Related Art In recent years, in order to maintain the power supply / demand balance of a power system, a technique for suppressing a tidal flow from the power system to the facility or a reverse flow from the facility to the power system is known (for example, Patent Documents 1 and 2). . Specifically, the tide flow rate or the reverse tide flow rate is suppressed by transmitting a control message to the control device from an operator such as a power transmission / distribution operator, a power generation operator, or a retailer.

JP 2013-169104 A JP 2014-128107 A

The power control method according to the first feature includes a step A in which a first operator server manages power to which a first price is applied among power in reverse power flow from a facility provided with a distributed power source to a power system, Of the reverse flow power, the second business server manages the power to which the second price is applied, and the reverse power flow to the control device that controls the distributed power source from the second business server. Transmitting a first message instructing execution of a specific discharge operation, which is a discharge operation of the distributed power source, which is permitted, and the specific discharge from the second operator server to the first operator server And a step D of transmitting a second message notifying that the execution of the operation has been instructed. The second price is applied to the reverse power flow generated by the execution of the specific discharge operation.

The second operator server according to the second feature includes a first operator server that manages the power to which the first price is applied out of the reverse power flow from the facility where the distributed power source is provided to the power system. In the system, the power to which the second price is applied is managed out of the reverse flow power. The second operator server transmits a first message instructing the control device that controls the distributed power supply to execute a specific discharge operation that is a discharge operation of the distributed power supply that allows the reverse power flow. 1 transmission part, and a 2nd transmission part which transmits the 2nd message which notifies that execution of the said specific discharge operation was instruct | indicated with respect to the said 1st provider server. The second price is applied to the reverse power flow generated by the execution of the specific discharge operation.

A control device according to a third feature includes: a first operator server that manages power to which a first price is applied among power in a reverse power flow from a facility provided with a distributed power source; and the power in the reverse power flow Among these, in a power supply control system provided with the 2nd provider server which manages the electric power to which a 2nd price is applied, the said distributed power supply is controlled. The control device receives from the second operator server a first message instructing execution of a specific discharge operation that is a discharge operation of the distributed power source in which the reverse power flow is allowed, and the first message And a control unit that executes the specific discharge operation. The second price is applied to the reverse power flow generated by the execution of the specific discharge operation.

FIG. 1 is a diagram illustrating a power supply control system 100 according to the embodiment. FIG. 2 is a diagram illustrating a facility 300 according to the embodiment. FIG. 3 is a diagram illustrating the second operator server 200 according to the embodiment. FIG. 4 is a diagram illustrating the local control device 360 according to the embodiment. FIG. 5 is a diagram for explaining the applied price according to the embodiment. FIG. 6 is a diagram illustrating a power control method according to the embodiment. FIG. 7 is a diagram illustrating a power control method according to the first modification.

In recent years, in the case where distributed power sources such as solar cell devices and storage battery devices coexist, in addition to the reverse power flow from the solar cell device to the power system, studies have been started on the amount of reverse power from the distributed power source to the power system. . Under such circumstances, it is necessary to consider various items in order to appropriately perform the reverse tide amount from the distributed power source to the power system.

The present invention provides a power supply control method, a second operator server, and a control device that enable an appropriate amount of reverse power flow from a distributed power supply to a power system.

Hereinafter, embodiments will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals.

However, it should be noted that the drawings are schematic and ratios of dimensions may differ from actual ones. Therefore, specific dimensions and the like should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships or ratios are included between the drawings.

[Embodiment]
(Power control system)
Hereinafter, a power supply control system according to the embodiment will be described.

As shown in FIG. 1, the power supply control system 100 includes a second operator server 200, a facility 300, and a first operator server 400. In FIG. 1, as the facility 300, a facility 300A to a facility 300C are illustrated.

Each facility 300 is connected to the power system 110. In the following, the flow of power from the power system 110 to the facility 300 is referred to as tidal current, and the flow of power from the facility 300 to the power system 110 is referred to as reverse power flow.

The second operator server 200, the facility 300, and the first operator server 400 are connected to the network 120. The network 120 may provide a line between the second company server 200 and the facility 300 and a line between the second company server 200 and the first company server 400. The network 120 is, for example, the Internet. The network 120 may provide a dedicated line such as a VPN (Virtual Private Network).

The second company server 200 manages the power to which the second price is applied in the reverse power flow from the storage battery device 320 to the power system 110. The second business server 200 is a server managed by a second business such as a power generation business or a retail business. In addition, the second operator may be an aggregator, an operator that provides adjustment power, an agent that performs power market transactions, and the like. Details of the second operator server 200 will be described later (see FIG. 3).

The second operator server 200 transmits a control message instructing control of the distributed power source (for example, the solar cell device 310 or the storage battery device 320) provided in the facility 300 to the local control device 360 provided in the facility 300. May be. For example, the second operator server 200 may transmit a power flow control message (for example, DR; Demand Response) requesting power flow control, or may transmit a reverse power flow control message requesting reverse power flow control. Good. Further, the second operator server 200 may transmit a power control message for controlling the operating state of the distributed power source. The degree of control of the tidal current or the reverse tidal current may be represented by an absolute value (for example, OO kW) or a relative value (for example, OO%). Or the control degree of a tidal current or a reverse tidal current may be represented by two or more levels. The degree of control of the tidal current or reverse power flow may be represented by a power rate (RTP: Real Time Pricing) determined by the current power supply / demand balance, or a power rate (TOU: Time Of Use) determined by the past power supply / demand balance May be represented by

The facility 300 includes a solar cell device 310, a storage battery device 320, a load device 330, a power meter 340, a power meter 350, and a local control device 360, as shown in FIG.

The solar cell device 310 is a distributed power source that generates power in response to light such as sunlight. The solar cell device 310 is an example of a distributed power source that allows reverse power flow to the power system 110. The solar cell device 310 includes, for example, a PCS (Power Conditioning System) and a solar panel.

The storage battery device 320 is a distributed power source that charges and discharges power. The storage battery device 320 is basically a distributed power source in which a discharge operation with a reverse power flow to the power system 110 is limited. On the other hand, the storage battery device 320 is a distributed power source that can be instructed to perform a discharge operation (hereinafter, specific discharge operation) in which reverse power flow to the power system 110 is allowed. The storage battery device 320 includes, for example, a PCS and a storage battery cell. The solar battery device 310 and the storage battery device 320 may be a power source used for VPP (Virtual Power Plant).

The load device 330 is a device that consumes power. The load device 330 is, for example, an air conditioning device, a lighting device, or an AV (Audio Visual) device.

The power meter 340 measures the amount of power flow from the power system 110 to the facility 300 and the amount of reverse power flow from the facility 300 to the power system 110. The power meter 340 is, for example, a smart meter that belongs to the first operator server 400.

The wattmeter 350 measures the amount of power generated by the solar cell device 310. The wattmeter 350 is, for example, a meter with a certification certified by a third party.

The local control device 360 is a device (EMS; Energy Management System) that manages the power of the facility 300. The local control device 360 may control the operation state of the solar cell device 310 or may control the operation state of the storage battery device 320 provided in the facility 300. Details of the local control device 360 will be described later (see FIG. 4).

In the embodiment, communication between the second operator server 200 and the local control device 360 is performed according to the first protocol. On the other hand, communication between the local control device 360 and the distributed power supply (solar cell device 310 or storage battery device 320) is performed according to a second protocol different from the first protocol. As the first protocol, for example, a protocol compliant with Open ADR (Automated Demand Response) or a unique dedicated protocol can be used. As the second protocol, for example, a protocol conforming to ECHONET Lite, SEP (Smart Energy Profile) 2.0, KNX, or an original dedicated protocol can be used. Note that the first protocol and the second protocol only need to be different. For example, even if both are unique dedicated protocols, they may be protocols created according to different rules.

The first provider server 400 manages the power to which the first price is applied, out of the reverse power flow from the storage battery device 320 to the power system 110. The first operator server 400 is an entity that provides an infrastructure such as the power grid 110, and is a server managed by a first operator such as a power transmission and distribution operator, for example.

Here, the first price is a price to which a fixed price purchase system (FIT; Feed-in Tariff) is applied (that is, a power selling price for the user). Examples of the first price include a power selling price (PV) in which so-called push-up control is not allowed, and a power selling price (W power generation) in which so-called push-up control is allowed. The charge system for the first price may be different from the charge system for the second price described above. However, the above-described second price may be the same as the power selling price (W power generation) in which so-called push-up control is allowed. The above-described second price may be determined by the above-described second operator. The second price described above may be lower than the first price.

(Second operator server)
Below, the 2nd provider server which concerns on embodiment is demonstrated. As illustrated in FIG. 3, the second operator server 200 includes a management unit 210, a communication unit 220, and a control unit 230. The second operator server 200 is an example of a VTN (Virtual Top Node).

The management unit 210 is configured by a storage medium such as a non-volatile memory and / or an HDD, and manages data related to the facility 300. The data regarding the facility 300 includes, for example, the type of the distributed power source (solar cell device 310 or storage battery device 320) provided in the facility 300, the specifications of the distributed power source (solar cell device 310 or storage battery device 320) provided in the facility 300, and the like. . The spec may be the rated generated power of the solar cell device 310, the rated output power of the storage battery device 320, or the like.

The communication unit 220 includes a communication module, and communicates with the local control device 360 and the first operator server 400 via the network 120. As described above, the communication unit 220 performs communication according to the first protocol. For example, the communication unit 220 transmits a message to the local control device 360 according to the first protocol. The communication unit 220 receives a message response from the local control device 360 according to the first protocol.

In the embodiment, the communication unit 220 includes a first transmission unit that transmits, to the local control device 360, a first message that instructs execution of a specific discharge operation that is a discharge operation of the storage battery device 320 in which reverse power flow is allowed. Constitute. The communication unit 220 constitutes a second transmission unit that transmits a second message notifying the first operator server 400 that the execution of the specific discharge operation has been instructed. Here, the second price is applied to the reverse power flow generated by the execution of the specific discharge operation.

The first message may include an information element indicating a time interval in which the specific discharge operation is performed. For example, the first message may include an information element indicating the start time (for example, 16:00) of the specific discharge operation and the duration (for example, 3 hours) of the specific discharge operation. The first message may include an information element indicating a start time (for example, 16:00) of the specific discharge operation and an end time (for example, 19:00) of the specific discharge operation. The first message may include an information element indicating an execution schedule of the specific discharge operation. The execution schedule includes a time zone in which the specific discharge operation is executed (for example, 8:00 to 10:00 and 16:00 to 19:00) and a time zone in which the specific discharge operation is not executed (for example, 10:00 to 16: 00). The specific discharge operation may be set, for example, in a time interval in which the power demand in the power system 110 is larger than a threshold value.

The second message may include an information element indicating a time interval in which the specific discharge operation is performed. For example, the second message may include an information element indicating the start time of the specific discharge operation and the duration of the specific discharge operation. The second message may include an information element indicating the start time of the specific discharge operation and the end time of the specific discharge operation. The second message may include an information element indicating the execution schedule of the specific discharge operation. As described above, the execution schedule is a schedule indicating a combination of a time zone in which the specific discharge operation is executed and a time zone in which the specific discharge operation is not executed.

Here, by executing the specific discharge operation, the expected power amount of the reverse power flow managed by the second operator server 200 increases, and the expected power amount of the reverse power flow managed by the first operator server 400 decreases. Therefore, the second message may include identification information for identifying the facility 300 in which the storage battery device 320 instructed to perform the specific discharge operation is provided. The second message may include identification information for identifying an administrator who manages the storage battery device 320 instructed to execute the specific discharge operation. The administrator may be an individual or a corporation. The second message may include an information element that specifies the amount of reverse flow power associated with the specific discharge operation. By including these information elements in the second message, the first operator server 400 can grasp the amount of decrease in the expected power amount of the reverse power flow managed by the first operator server 400.

The control unit 230 is configured by a memory, a CPU, and the like, and controls each configuration provided in the second operator server 200. For example, the control unit 230 instructs the local control device 360 provided in the facility 300 to control the distributed power source (the solar cell device 310 or the storage battery device 320) provided in the facility 300 by transmitting a control message. As described above, the control message may be a power flow control message, a reverse power flow control message, or a power control message.

In the embodiment, the control unit 230 generates power generated by a distributed power source (for example, the solar battery device 310) different from the storage battery device 320, power consumption of the load device 330 provided in the facility 300, and power traded in the power system. Whether or not to transmit the first message may be determined based on at least one of the prices (hereinafter referred to as power market price). The power market price may be the second price.

For example, the control unit 230 may determine to transmit the first message when the amount of power generated by the solar cell device 310 is equal to or less than a predetermined threshold. The control unit 230 may determine to transmit the first message when the power consumption amount of the load device 330 provided in the facility 300 is equal to or greater than a predetermined threshold. The control unit 230 may determine to transmit the first message when the power market price (the power selling price of the reverse power flow or the power purchasing price of the power of the power flow) is equal to or greater than a predetermined threshold. The control unit 230 may determine to transmit the first message when the value obtained by subtracting the power consumption amount of the load device 330 from the power generation amount of the solar cell device 310 is equal to or less than a predetermined threshold value. According to such a configuration, the power system 110 is stabilized within the scope of the responsibility of the second operator server 200 while reducing the disadvantages experienced by the user by applying the second price instead of the first price. be able to.

(Local control device)
Hereinafter, a local control device according to the embodiment will be described. As illustrated in FIG. 4, the local control device 360 includes a first communication unit 361, a second communication unit 362, and a control unit 363. The local control device 360 is an example of a VEN (Virtual End Node).

The first communication unit 361 includes a communication module, and communicates with the second operator server 200 via the network 120. As described above, the first communication unit 361 performs communication according to the first protocol. For example, the first communication unit 361 receives a message from the second operator server 200 according to the first protocol. The first communication unit 361 transmits a message response to the second operator server 200 according to the first protocol.

In the embodiment, the first communication unit 361 constitutes a receiving unit that receives the first message described above from the second operator server 200. The first communication unit 361 may transmit a message including at least the reverse flow history information that occurs in a time period other than the time period in which the specific discharge operation is performed. Such a message may include performance information of reverse power flow that occurs in a time interval in which the specific discharge operation is performed.

The 2nd communication part 362 is comprised by the communication module, and communicates with a distributed power supply (the solar cell apparatus 310 or the storage battery apparatus 320). As described above, the second communication unit 362 performs communication according to the second protocol. For example, the second communication unit 362 transmits a message to the distributed power source according to the second protocol. The second communication unit 362 receives a message response from the distributed power source according to the second protocol.

The control unit 363 includes a memory and a CPU, and controls each component provided in the local control device 360. Specifically, in order to control the power of the facility 300, the control unit 363 instructs the device to set the operating state of the distributed power supply by transmitting a message and receiving a message response according to the second protocol. In order to manage the power of the facility 300, the control unit 363 may instruct the distributed power source to report information on the distributed power source by transmitting a message and receiving a message response according to the second protocol.

In the embodiment, the control unit 363 performs a specific discharge operation, which is a discharge operation of the storage battery device 320 in which reverse power flow is allowed, according to the first message.

The control unit 363 may manage the performance information described above. The performance information may include information for specifying whether or not a reverse power flow has occurred due to the execution of the specific discharge operation. For example, the performance information is information that the amount of power of reverse power flow without specific discharge operation from 10:00 to 16:00 is OOkWh. The performance information may include information that the amount of power of the reverse power flow accompanied by the specific discharge operation is OO kWh from 16:00 to 19:00. The performance information may include the amount of power that is totaled every predetermined time (for example, 30 minutes). Such a power amount includes at least a reverse power flow power amount and may include a power flow power amount. Such an electric energy may be, for example, an electric energy measured by the wattmeter 340 or an entire electric energy of the facility 300.

Here, the time interval other than the time interval in which the specific discharge operation is performed is a time interval in which the above-described first price should be applied to the reverse power flow. The performance information is used for verifying whether or not there is no problem in applying the first price to the reverse flow power generated in such a time interval. For example, a price lower than the first price may be applied to power that does not accompany performance information in reverse power flow that occurs in a time period other than the time period in which the specific discharge operation is performed. The price lower than the first price may be the second price. “No record information” may be a lack of record information, and the time managed by the second provider server 200 or the first provider server 400 and the time included in the record information are asynchronous (mismatch). It may be. Furthermore, “without actual information” may be a mismatch between the measurement result of the wattmeter 340 (for example, smart meter) and the actual information.

The electric power that is not accompanied by the above-described performance information may be treated as electric power managed by the second operator server 200 in order to stabilize the electric power system 110. Specifically, since the first price is not applied to the power without the performance information, the power without the performance information is not treated as the power managed by the first business server 400 and the second business server 200 Treated as a management target.

(Applicable price)
Hereinafter, an example of the applicable price according to the embodiment will be described. As shown in FIG. 5, the discharge operation of the storage battery device 320 includes a specific discharge operation that is a discharge operation in which reverse power flow is allowed, and a normal discharge operation in which reverse power flow is not allowed. The normal discharging operation may be classified according to whether or not the storage battery device 320 is allowed to assist reverse power flow from the solar cell device 310 to the power system 110 (BAT assistance).

As shown in FIG. 5, the control (BAT control) of the storage battery device 320 is classified according to a specific discharge operation and a normal discharge operation.

In FIG. 5, the first control is a control that allows the discharge operation of the storage battery device 320 within a range that does not exceed the amount of power obtained by removing the amount of power generated by the solar cell device 310 (PV power generation amount) from the amount of power consumed by the load device 330. It is. In the third control, standby operation or charging operation of the storage battery device 320 may be allowed.

2nd control is control which suppresses the discharge operation of the storage battery apparatus 320. FIG. In the second control, the standby operation or the charging operation of the storage battery device 320 may be allowed.

3rd control is control which accept | permits the discharge operation of the storage battery apparatus 320 in the range which does not exceed the electric power consumption of the load apparatus 330. FIG. According to such a discharge operation, reverse power flow from the facility 300 to the power system 110 is promoted within a range not exceeding the amount of power generated by the solar cell device 310 (so-called push-up control).

4th control is control which accept | permits the discharge operation of the storage battery apparatus 320 in the range which does not exceed the electric power consumption of the load apparatus 330. FIG. According to such a discharge operation, the reverse power flow from the facility 300 to the power system 110 increases (so-called push-up control) within a range that does not exceed the amount of power generated by the solar cell device 310.

The fifth control is control that allows the storage battery device 320 to perform a discharge operation regardless of the amount of power generated by the solar cell device 310 (PV power generation amount) and the amount of power consumed by the load device 330. Such a discharge operation may be an operation of discharging a constant power (rated power). In the fifth control, the standby operation or the charging operation of the storage battery device 320 may be allowed.

Here, No. According to the control No. 1, the first price (PV) in which the so-called push-up control is not allowed is applied to the reverse power flow. No. According to the control 2, the first price (W power generation) in which so-called push-up control is allowed is applied to the reverse power flow. No. According to the control 3, the second price is applied to the reverse power flow. As described above, the second price may be the same as the first price (W power generation).

(Power control method)
Hereinafter, a power control method according to the embodiment will be described.

As shown in FIG. 6, in step S10, the second operator server 200 determines whether or not to transmit the first message. The second provider server 200 is configured to generate power generated by a distributed power source (for example, the solar battery device 310) different from the storage battery device 320, power consumption of the load device 330 provided in the facility 300, and power sold in the power system. Whether or not to transmit the first message may be determined based on at least one of the prices (power market prices). Here, a case where the second operator server 200 determines to transmit the first message will be described.

In step S <b> 11, the second operator server 200 transmits a first message instructing the local control device 360 to execute a specific discharge operation that is a discharge operation of the storage battery device 320 in which reverse power flow is allowed.

In step S12, the second operator server 200 transmits a second message notifying the first operator server 400 that the execution of the specific discharge operation has been instructed.

In step S13, the local control device 360 executes a specific discharge operation in response to the first message.

In step S <b> 14, the local control device 360 may transmit a message including at least reverse performance record information generated in a time period other than the time period in which the specific discharge operation is performed to the second operator server 200. .

In step S <b> 15, the second operator server 200 transmits a message including performance information received from the local control device 360 to the first operator server 400.

(Function and effect)
In the embodiment, the second operator server 200 transmits, to the local control device 360, a first message instructing execution of a specific discharge operation that is a discharge operation of the storage battery device 320 in which reverse power flow is allowed. According to such a configuration, in an environment where the application of the first price is permitted due to the limitation of the discharge operation accompanied by the reverse power flow to the power system 110, the power supply used for the VPP is not permitted without limitation of the specific discharge operation. As a result, the storage battery device 320 can be used effectively. On the other hand, the second operator server 200 transmits a second message notifying the first operator server 400 that the execution of the specific discharge operation has been instructed. According to such a configuration, the first operator server 400 can grasp the decrease in the expected power amount of the reverse power flow managed by the first operator server 400.

[Modification 1]
Hereinafter, Modification Example 1 of the embodiment will be described. In the following, differences from the embodiment will be described.

In the first modification, when the second operator server 200 receives a request message for requesting execution of the specific discharge operation from the local control device 360, the second operator server 200 determines whether or not to transmit the first message.

The local control device 360 generates power generated by a distributed power source (for example, the solar battery device 310) different from the storage battery device 320, power consumption of the load device 330 provided in the facility 300, and the price of power sold and sold in the power system ( Whether or not to transmit the request message may be determined based on at least one of (electric power market price). The logic for determining whether or not the local control device 360 transmits the request message overlaps with at least a part of the logic for determining whether or not the second operator server 200 according to the embodiment transmits the first message. May be.

(Power control method)
Hereinafter, a power control method according to the first modification will be described.

As shown in FIG. 7, in step S <b> 20, the local control device 360 determines whether to send a request message for requesting execution of the specific discharge operation to the second operator server 200. Here, a case where the local control device 360 determines to transmit a request message will be described.

In step S21, the local control device 360 transmits a request message for requesting execution of the specific discharge operation to the second operator server 200.

In step S22, the second operator server 200 transmits a first message instructing the local control device 360 to execute a specific discharge operation that is a discharge operation of the storage battery device 320 in which reverse power flow is allowed. Here, the 2nd provider server 200 may refuse the execution request of specific discharge operation.

In step S23, the second operator server 200 transmits a second message notifying the first operator server 400 that the execution of the specific discharge operation has been instructed.

In step S24, the local control device 360 executes a specific discharge operation in response to the first message.

In step S <b> 25, the local control device 360 may transmit a message including at least the reverse flow history information generated in the time interval other than the time interval in which the specific discharge operation is performed to the second operator server 200. .

In step S26, the second operator server 200 transmits a message including the record information received from the local control device 360 to the first operator server 400.

[Other Embodiments]
Although the present invention has been described with reference to the above-described embodiments, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

In the embodiment, the solar battery device 310 is exemplified as the distributed power source provided together with the storage battery device 320. However, the embodiment is not limited to this. The distributed power source may be a distributed power source that uses natural energy such as wind power or geothermal heat.

In the embodiment, the case where the storage battery device 320 is provided as a distributed power source is illustrated. However, the distributed power source may be a fuel cell device. The distributed power supply may be a power supply used for VPP.

Although not specifically mentioned in the embodiment, the local control device 360 provided in the facility 300 may not necessarily be provided in the facility 300. For example, some of the functions of the local control device 360 may be provided by a cloud server provided on the Internet. That is, it may be considered that the local control device 360 includes a cloud server.

In the embodiment, the case where the local control device 360 is an EMS is exemplified. However, the embodiment is not limited to this. The local control device 360 may be a PCS provided in the storage battery device 320 or a remote controller that controls the PCS provided in the storage battery device 320.

As described in the embodiment, the second price is applied to the reverse power flow generated by executing the specific discharge operation. The entity that applies the second price may be considered as the second operator server 200, or may be considered as the operator who manages the second operator server 200. That is, it is sufficient that an agreement such as a contract exists between the business operator who manages the second business operator server 200 and the manager who manages the storage battery device 320.

In the embodiment, the case where the first protocol is a protocol conforming to Open ADR2.0 and the second protocol is a protocol conforming to ECHONET Lite is illustrated. However, the embodiment is not limited to this. The first protocol may be a protocol standardized as a protocol used for communication between the second operator server 200 and the local control device 360. The second protocol may be a protocol standardized as a protocol used in the facility 300.

Note that the entire content of Japanese Patent Application No. 2017-070095 (filed on Mar. 31, 2017) is incorporated herein by reference.

Claims (14)

Step A in which the first operator server manages the power to which the first price is applied among the reverse power flow from the facility where the distributed power source is provided to the power system,
Step B where the second operator server manages the power to which the second price is applied out of the reverse power flow,
A step C of transmitting a first message instructing execution of a specific discharge operation, which is a discharge operation of the distributed power source in which the reverse power flow is allowed, from the second provider server to the control device that controls the distributed power source When,
A step D for transmitting a second message notifying the execution of the specific discharge operation from the second operator server to the first operator server;
The power supply control method, wherein the second price is applied to the reverse flow power generated by the execution of the specific discharge operation. The power supply control method according to claim 1, wherein at least one of the first message and the second message includes an information element indicating a time interval in which the specific discharge operation is performed. The power supply control method according to claim 2, wherein at least one of the first message and the second message includes an information element indicating a start time of the specific discharge operation and a duration of the specific discharge operation. The power supply control method according to claim 2, wherein at least one of the first message and the second message includes an information element indicating a start time of the specific discharge operation and an end time of the specific discharge operation. The power supply control method according to claim 2, wherein at least one of the first message and the second message includes an information element indicating an execution schedule of the specific discharge operation. The power supply control method according to any one of claims 1 to 5, wherein the second message includes identification information for identifying the facility provided with the distributed power supply instructed to perform the specific discharge operation. The power supply control method according to any one of claims 1 to 6, wherein the second message includes identification information for identifying an administrator who manages the distributed power supply instructed to execute the specific discharge operation. The power supply control method according to any one of claims 1 to 7, wherein the second message includes an information element that specifies an amount of electric power of the reverse flow accompanying the specific discharge operation. The step C is based on at least one of the amount of power generated by a distributed power source different from the distributed power source, the amount of power consumed by load equipment provided in the facility, and the price of power sold and purchased in the power system, The power supply control method according to any one of claims 1 to 8, comprising a step of determining whether or not the second operator server transmits the first message. The step C includes a step of determining whether the second operator server transmits the first message when a request message for requesting execution of the specific discharge operation is received from the control device. The power supply control method according to any one of claims 1 to 8. The method further comprises a step (E) of transmitting a message including at least the actual information of the reverse power flow occurring in a time interval other than the time interval in which the specific discharge operation is performed from the control device to the second operator server. The power supply control method according to any one of claims 1 to 10. The price lower than the first price is applied to electric power not accompanied by the performance information among the reverse power flow generated in a time period other than the time period in which the specific discharge operation is performed. Power control method. In a power supply control system including a first provider server that manages power to which a first price is applied among power in reverse power flow from a facility provided with a distributed power source, second power in the reverse power flow. A second operator server for managing the power to which the price applies,
A first transmission unit that transmits a first message instructing execution of a specific discharge operation, which is a discharge operation of the distributed power source in which the reverse power flow is allowed, to the control device that controls the distributed power source;
A second transmitter that transmits a second message that notifies the first operator server that the execution of the specific discharge operation has been instructed;
The second operator server, wherein the second price is applied to the power of the reverse power flow generated by the execution of the specific discharge operation. The first company server that manages the power to which the first price is applied out of the reverse power flow from the facility where the distributed power source is provided, and the second price among the reverse power power is applied. In a power supply control system comprising a second operator server that manages power, a control device that controls the distributed power supply,
A receiving unit that receives a first message that instructs execution of a specific discharge operation that is a discharge operation of the distributed power source in which the reverse power flow is allowed, from the second provider server;
A controller that executes the specific discharge operation in response to the first message;
The control device, wherein the second price is applied to the power of the reverse power flow generated by the execution of the specific discharge operation.

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