Electricity supply and demand management system and electricity supply and demand management method

Abstract

To use a distribution type power source to efficiently manage power supply and demand.SOLUTION: A power supply and demand management system for managing power supply and demand of a balance group by a plurality of dispersion type power sources and a generator includes a first management device for managing overall power supply and demand of the balance group, and a second management device for managing power supply and demand that is a lower level hierarchical layer of the balance group and manages the power supply and demand in a virtual power plant that operates a plurality of distribution type power sources as a virtual power plant. The first management device cooperates with the second management device to transmit a control command to the second management device so as to match the power demand and supply in the balance group in a predetermined unit period according to a demand prediction value and a suppliable prediction value based on an actual supply and demand value acquired from the second management device and generator simulation data indicating the characteristics of a generator in the virtual power plant.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to an electricity supply and demand management system and an electricity supply and demand management method. [Background technology]

[0002] Electricity retailers are required to match the demand of their customers, who are under their management, with the amount of electricity generated by generators or the amount of electricity they have procured, every 30 minutes, and there is a concept called BG (Balancing Group) to facilitate this management. Furthermore, the number of small power sources installed on the customer side has been increasing in recent years, and a VPP (Virtual Power Plant) has become known in which a business operator called an aggregator collectively monitors and controls the power of these individual power sources, treating them as if they were a single power plant (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2022-89659 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with conventional technology, it is difficult for electricity retailers to handle a wide variety of distributed power sources, and there is a need for a system that can monitor and control everything from BGs to individual distributed power sources in an integrated manner.

[0005] The present disclosure has been made to solve the above problems, and its purpose is to provide an electricity supply and demand management system and an electricity supply and demand management method that can efficiently manage electricity supply and demand using distributed power sources. [Means for solving the problem]

[0006] In order to solve the above problems, the present disclosure provides an electricity supply and demand management system that manages the supply and demand of electricity in a balance group consisting of a plurality of distributed power sources and generators, the system comprising: a first management device that manages the supply and demand of electricity for the entire balance group; and a second management device that is a lower hierarchical level of the balance group and manages the supply and demand of electricity in a virtual power plant that operates a plurality of distributed power sources as a virtual power plant, and the first management device cooperates with the second management device to send control commands to the second management device so as to match the supply and demand of electricity in the balance group within a predetermined unit period, in accordance with a demand forecast value and a supply availability forecast value based on actual supply and demand values ​​acquired from the second management device, and generator simulation data that indicates the characteristics of the generator as a generator in the virtual power plant.

[0007] The present disclosure also provides an electricity supply and demand management method for managing the electricity supply and demand of a balance group in an electricity supply and demand management system including a first management device that manages the overall electricity supply and demand of a balance group consisting of a plurality of distributed power sources and generators, and a second management device that is a lower hierarchical level of the balance group and manages the electricity supply and demand in a virtual power plant that operates a plurality of distributed power sources as a virtual power plant, wherein the first management device cooperates with the second management device to send a control command to the second management device so as to match the electricity demand and supply in the balance group within a predetermined unit period, based on a demand forecast value and a supply availability forecast value based on actual supply and demand values ​​acquired from the second management device, and generator simulation data that indicates the characteristics of the generator as a generator in the virtual power plant. [Effects of the Invention]

[0008] According to the present disclosure, power supply and demand can be managed efficiently using distributed power sources. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a functional block diagram illustrating an example of a power supply and demand management system according to an embodiment of the present invention. [Figure 2]FIG. 2 is a block diagram illustrating an example of a local EMS according to the present embodiment. [Figure 3] FIG. 1 is a diagram illustrating an outline of the operation of a power supply and demand management system according to an embodiment of the present invention. [Figure 4] 4 is a flowchart showing an example of the operation of the BG supply and demand management device in this embodiment. [Figure 5] 4 is a flowchart showing an example of the operation of the VPP supply and demand management device in this embodiment. [Figure 6] 10 is a flowchart showing an example of a redistribution process of the VPP supply and demand management device in this embodiment. [Figure 7] 4 is a flowchart showing an example of the operation of the DEP device in this embodiment. [Figure 8] 5 is a flowchart illustrating an example of an operation of a local EMS device in the present embodiment. [Figure 9] 1 is a diagram illustrating an example of the hardware configuration of each device in a power supply and demand management system according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an electric power supply and demand management system and an electric power supply and demand management method according to an embodiment of the present disclosure will be described with reference to the drawings.

[0011] FIG. 1 is a functional block diagram showing an example of an electricity supply and demand management system 1 according to this embodiment. As shown in FIG. 1, the power supply and demand management system 1 includes a BG supply and demand management device 10, a VPP supply and demand management device 20, a DEP device 30, a local EMS device 40, a group of power supply control devices (3, 4), and a group of distributed power sources 5.

[0012] The BG supply and demand management device 10 and the external server 2, and the VPP supply and demand management device 20 and the external server 2, can be connected via a network NW1. In addition, the BG supply and demand management device 10 and the VPP supply and demand management device 20, the VPP supply and demand management device 20 and the DEP device 30, and the DEP device 30 and the local EMS device 40 are connected via dedicated lines or a network (e.g., the Internet).

[0013] In addition, the BG supply and demand management device 10 and the power supply control device group 3, the VPP supply and demand management device 20 and the power supply control device group 4, and the local EMS device 40 and the distributed power supply group 5 are connected via dedicated lines or a network (e.g., the Internet).

[0014] The external server 2 is a server device that provides various external services, and is represented here as one server device. The various services include, for example, a service that provides weather information (weather forecast information and performance information), a simple command system that outputs DR commands (demand response commands), and a market trading system.

[0015] The power supply control device group 3 is a group of devices that control the distributed power supplies that are directly managed by the BG supply and demand management device 10. The power supply control device group 4 is a group of devices that control the distributed power supplies that are directly managed by the VPP supply and demand management device 20 . The distributed power supply group 5 is a group of power supplies managed by the local EMS device 40 .

[0016] A BG supply and demand management device 10 (an example of a first management device) manages the supply and demand of electricity in the highest EMS (Energy Management System) hierarchy (first hierarchy), which is the highest hierarchy of a BG (Balance Group) consisting of multiple distributed power sources and generators. The BG supply and demand management device 10 cooperates with a VPP supply and demand management device 20 to transmit control commands to the VPP supply and demand management device 20 so as to match the supply and demand of electricity in the BG within a predetermined unit period (e.g., 30 minutes) based on demand forecast values ​​and supply availability forecast values ​​(e.g., renewable energy power generation forecast and controllable amount forecast) based on actual supply and demand values ​​acquired from the VPP supply and demand management device 20, and on generator simulation data indicating the characteristics of the generator in the VPP. Here, a VPP (Virtual Power Plant) is a concept in which an operator called an aggregator aggregates any number of power sources (multiple distributed power sources) to monitor and control the power and treat them as if they were a single power plant. This refers to a virtual power plant in which multiple distributed power sources are operated as a virtual power plant.

[0017] Specifically, the BG supply and demand management device 10 transmits a control command (first control command) to the VPP supply and demand management device 20 at 5-minute intervals (second unit period intervals) shorter than 30 minutes so as to match the supply and demand of electricity in the BG for a predetermined 30-minute period (first unit period) based on the actual supply and demand values ​​acquired from the VPP supply and demand management device 20. The BG supply and demand management device 10 also directly manages a portion of the demand and power generation that does not belong to the second management device. The BG supply and demand management device 10 also includes an inter-device transmission / reception unit 11, a NW (network) communication unit 12, a device storage unit 13, and a device control unit 14.

[0018] The inter-device transmission / reception unit 11 is a functional unit realized by a communication device such as a network adapter. The inter-device transmission / reception unit 11 transmits and receives information to and from the VPP supply and demand management device 20 via a dedicated line or a network (e.g., the Internet) to cooperate with the VPP supply and demand management device 20. The inter-device transmission / reception unit 11 receives, for example, actual values, variable amounts of power, costs, and predicted values ​​from the VPP supply and demand management device 20. The inter-device transmission / reception unit 11 also transmits control commands to the VPP supply and demand management device 20 and the power supply control device group 3.

[0019] The NW communication unit 12 is a functional unit realized by a communication device such as a network adapter. The NW communication unit 12 is connected to the network NW1 and performs communication between the BG supply and demand management device 10 and the external server 2. The NW communication unit 12 is used, for example, to receive weather information from the external server 2, receive DR commands, and perform electricity market transactions.

[0020] The device storage unit 13 stores various information used by the BG supply and demand management device 10. The device storage unit 13 includes a master information storage unit 131, an actual value storage unit 132, a weather information storage unit 133, a predicted value storage unit 134, and a plan information storage unit 135.

[0021] The master information storage unit 131 stores master information of various power sources managed by the BG supply and demand management device 10. The master information includes the maximum output, minimum output, rate of change, fuel type, power generation cost, start-up pattern, stop pattern, cost information, etc. The cost information includes cost information (electricity price index, adjusted unit price, etc.) when charging the power source as a power storage device. The master information storage unit 131 stores, for example, identification information of various power sources in association with the master information.

[0022] The performance value storage unit 132 stores, for example, the control performance (actual supply and demand values) of each power generator and VPP collected at five-minute intervals by the performance collection unit 141, which will be described later. The performance value storage unit 132 stores, for example, identification information of each power generator and VPP, control date and time information, and control performance values ​​(actual supply and demand values) in association with each other.

[0023] The weather information storage unit 133 stores weather information acquired from the external server 2 via the NW communication unit 12. The weather information includes weather forecast information and actual information, such as forecast values ​​and actual values ​​of weather, temperature, humidity, sunshine hours, etc.

[0024] The predicted value memory unit 134 stores, for example, predicted information predicted by the prediction processing unit 142 described later (for example, demand forecasts outside the management of the upper EMS (outside the management of the VPP supply and demand management device 20), renewable energy power generation forecasts, and controllable amount forecasts), as well as predicted information obtained from the VPP supply and demand management device 20 at 5-minute intervals.

[0025] The plan information storage unit 135 stores charge / discharge plans for each power generator and VPP generated every 30 minutes by the power generation planning unit 144, which will be described later. The plan information storage unit 135 stores, for example, identification information for each power generator and VPP to be controlled in association with plan information indicating the charge / discharge plan.

[0026] The device control unit 14 is a functional unit realized by, for example, causing a processor including a CPU (Central Processing Unit) to execute a program stored in the device storage unit 13. The device control unit 14 executes various processes of the BG supply and demand management device 10. The device control unit 14 includes a performance collection unit 141, a prediction processing unit 142, a master management unit 143, a power generation planning unit 144, and a control collaboration unit 145.

[0027] The result collection unit 141 collects the control results of each generator and VPP, for example, at five-minute intervals. The result collection unit 141 collects the control results of each generator and VPP at five-minute intervals via the inter-device transmission / reception unit 11, and stores, for example, the identification information of each generator and VPP, the date and time information of control, and the control result value in association with each other in the result value storage unit 132.

[0028] The prediction processing unit 142 (an example of a first prediction processing unit) predicts the predicted demand value and the predicted supply availability value of power in the BG based on the actual supply and demand values ​​(control results) in response to a control command (first control command) to the VPP supply and demand management device 20, collected at five-minute intervals. The prediction processing unit 142 performs demand prediction, renewable energy power generation prediction, and controllable amount prediction for an area not managed by a higher-level EMS (not managed by the VPP supply and demand management device 20), for example, based on the actual supply and demand values ​​collected by the result collection unit 141, the master information stored in the master information storage unit 131, and the weather information stored in the weather information storage unit 133. In other words, the prediction processing unit 242 predicts the predicted demand value and the predicted supply availability value for power demand and power generation that do not belong to each VPP and are directly managed by the BG supply and demand management device 10. The prediction processing unit 142 stores the predicted values ​​in the predicted value storage unit 134.

[0029] The master management unit 143 manages master information of various power sources. The master management unit 143 periodically acquires master information of various power sources via the inter-device transmission / reception unit 11, and stores and manages the acquired master information in the master information storage unit 131. For example, when the configuration of various power sources is changed, the master management unit 143 acquires the latest master information and updates the master information stored in the master information storage unit 131. In other words, the master management unit 143 updates the master information stored in the master information storage unit 131 in response to addition, deletion, change, etc. of various power sources.

[0030] The power generation planning unit 144 (an example of a first planning unit) generates an operation plan for every 30 minutes based on the demand forecast value and supply availability forecast value predicted by the prediction processing unit 142. The power generation planning unit 144, for example, acquires generator simulation data indicating the characteristics of a generator in the VPP from the VPP supply and demand management device 20 via the inter-device transmission and reception unit 11. The power generation planning unit 144 generates a charge and discharge plan for every 30 minutes (every 30 minutes) for each generator and VPP based on the forecast information stored in the forecast value storage unit 134 (the forecast information predicted by the prediction processing unit 142 and the forecast information acquired from the VPP supply and demand management device 20), the master information stored in the master information storage unit 131, and the generator simulation data.

[0031] The power generation planning unit 144 stores the generated charge / discharge plan for every 30 minutes in the plan information storage unit 135. Furthermore, the power generation planning unit 144 transmits the charge / discharge plan for each VPP to the VPP supply and demand management device 20 via the inter-device transmission / reception unit 11 to cooperate with the VPP supply and demand management device 20.

[0032] The control collaborator 145 (an example of a first control command unit) transmits control commands (first control commands) to the VPP supply and demand management device 20 at five-minute intervals (five-minute cycles) based on the 30-minute operation plan generated by the power generation planning unit 144. The control collaborator 145 generates control commands (first control commands) at five-minute intervals (five-minute cycles) for each power generator and VPP based on the control result values ​​(supply and demand result values) stored in the result value storage unit 132, the master information stored in the master information storage unit 131, and the 30-minute charge and discharge plan stored in the plan information storage unit 135.

[0033] The control linking unit 145 transmits the generated control commands at five-minute intervals (five-minute cycles) to the power supply control device group 3 and the VPP supply and demand management device 20 via the inter-device transmitting and receiving unit 11. The control linking unit 145 transmits the commands to the VPP supply and demand management device 20 via the inter-device transmitting and receiving unit 11, for example, on a VPP basis, to link with the VPP supply and demand management device 20.

[0034] The VPP supply and demand management device 20 (an example of a second management device) manages the supply and demand of electricity in an upper EMS hierarchy (second hierarchy) that is a hierarchy lower than the highest EMS hierarchy of the BG supply and demand management device 10. In other words, the VPP supply and demand management device 20 is a hierarchy lower than the BG, and manages the supply and demand of electricity in a VPP that operates multiple distributed power sources as a virtual power plant.

[0035] The VPP supply and demand management device 20 sends a control command (second control command) to a local EMS hierarchy (third hierarchy), which is a hierarchy lower than the upper EMS hierarchy, at one-minute intervals (third unit period intervals) shorter than five minutes so that the control command (first control command) can be achieved at five-minute intervals. The VPP supply and demand management device 20 also includes an inter-device transmission / reception unit 21, a NW communication unit 22, a device storage unit 23, and a device control unit 24.

[0036] The inter-device transmission / reception unit 21 is a functional unit realized by a communication device such as a network adapter. The inter-device transmission / reception unit 21 transmits and receives information to and from the BG supply and demand management device 10 and the DEP device 30 via a dedicated line or a network (e.g., the Internet), and cooperates with the VPP supply and demand management device 20 and the DEP device 30. The inter-device transmission / reception unit 21 transmits, for example, actual values, variable amounts of power, costs, predicted values, etc. to the BG supply and demand management device 10. The inter-device transmission / reception unit 21 also receives control commands from the BG supply and demand management device 10.

[0037] Furthermore, the inter-device transmission / reception unit 21 receives, for example, performance values ​​(performance values ​​of the local EMS 400) from the DEP device 30. Furthermore, the inter-device transmission / reception unit 21 transmits control commands to the DEP device 30 and the power supply control device group 4.

[0038] The NW communication unit 22 is a functional unit realized by a communication device such as a network adapter. The NW communication unit 22 connects to the network NW1 and performs communication between the VPP supply and demand management device 20 and the external server 2. The NW communication unit 22 is used, for example, to receive weather information from the external server 2, receive DR commands, and the like.

[0039] The device storage unit 23 stores various information used by the VPP supply and demand management device 20. The device storage unit 23 includes a master information storage unit 231, an actual value storage unit 232, a weather information storage unit 233, a predicted value storage unit 234, a generator simulation data storage unit 235, and a control plan storage unit 236.

[0040] The master information storage unit 231 stores master information of various devices managed by the VPP supply and demand management device 20. The master information includes device master information of each device (rated output, power outage capacity, control availability time period, battery protection settings), consumer contract master information (contracted power (forward flow or reverse flow), adjustment contract plan (flat rate or metered rate), adjustment contract metered price, electricity rate menu, voltage class, area (demand location information)), etc. The master information storage unit 231 stores, for example, identification information of various devices in association with the master information.

[0041] The performance value storage unit 232 stores, for example, the control performance (actual supply and demand values) of each local EMS 400 collected at one-minute intervals by the performance collection unit 241 (described later). The performance value storage unit 232 stores, for example, the identification information of each local EMS device 40, the date and time information of the control, and the control performance value (actual supply and demand values) in association with each other.

[0042] The weather information storage unit 233 stores weather information acquired from the external server 2 via the NW communication unit 22. The weather information includes weather forecast information and actual information, such as forecast values ​​and actual values ​​of weather, temperature, humidity, sunshine hours, etc.

[0043] The predicted value storage unit 234 stores, for example, prediction information predicted by the prediction processing unit 242 described later (for example, a demand forecast, a renewable energy power generation forecast, and a controllable amount forecast for a VPP managed by the VPP supply and demand management device 20).

[0044] The generator simulation data storage unit 235 stores generator simulation data modeled by a generator simulation processing unit 244, which will be described later. Here, the generator simulation data is data in which multiple distributed power sources are simulated as virtual generators, and is information that indicates the characteristics of the generators in the VPP.

[0045] The control plan storage unit 236 stores operation plans and minute-by-minute control commands for each local EMS 400 generated every five minutes by a control plan unit 245 (described later). The plan information storage unit 135 stores, for example, identification information of the local EMS 400 (local EMS device 40) to be controlled, in association with control plan information indicating a charge / discharge plan (operation plan) and control commands.

[0046] The device control unit 24 is a functional unit realized, for example, by causing a processor including a CPU to execute a program stored in the device storage unit 13. The device control unit 24 executes various processes of the VPP supply and demand management device 20. The device control unit 24 includes a performance collection unit 241, a prediction processing unit 242, a master management unit 243, a generator simulation processing unit 244, a control planning unit 245, and a control coordination unit 246.

[0047] The result collection unit 241 collects, for example, at one-minute intervals, the control results of each local EMS 400. The result collection unit 241 collects, at one-minute intervals, the control results of each local EMS 400 (third hierarchical layer) via the inter-device transmission / reception unit 21, and stores, for example, the identification information of each local EMS 400, the date and time information of the control, and the control result value in the result value storage unit 232 in association with each other.

[0048] The prediction processing unit 242 (an example of a second prediction processing unit) predicts the predicted demand value and the predicted supply availability value of power in the upper EMS hierarchy based on the actual supply and demand values ​​in response to the control command (second control command) collected at one-minute intervals (intervals of a third unit period). The prediction processing unit 242 predicts the predicted demand value and the predicted supply availability value of power in each VPP based on the actual supply and demand values ​​(control results) in response to the control command (second control command) to the local EMS 400 collected at one-minute intervals, for example.

[0049] The prediction processing unit 242 performs VPP demand prediction, renewable energy power generation prediction, and controllable amount prediction based on, for example, the supply and demand result values ​​collected by the result collection unit 241, the master information stored in the master information storage unit 231, and the weather information stored in the weather information storage unit 233. The prediction processing unit 242 stores the predicted values ​​in the predicted value storage unit 234. Furthermore, the prediction processing unit 242 transmits the predicted value to the BG supply and demand management device 10 in VPP units to cooperate with the device.

[0050] The master management unit 243 manages master information for various devices. The master management unit 243 periodically acquires master information for various devices via the inter-device transmission / reception unit 21 and stores and manages the acquired master information in the master information storage unit 231. For example, when the configuration of various devices in the VPP is changed, the master management unit 243 acquires the latest master information and updates the master information stored in the master information storage unit 231. In other words, the master management unit 243 updates the master information stored in the master information storage unit 231 in response to addition, deletion, change, etc. of various devices in the VPP.

[0051] The generator simulation processing unit 244 models each distributed power source as a virtual power plant based on the control results (actual supply and demand values) stored in the actual value memory unit 232 and the master information stored in the master information memory unit 231 so that the top-level EMS (BG supply and demand management device 10) can handle them.

[0052] The generator simulation processing unit 244 stores the generated generator simulation data in the generator simulation data storage unit 235. The generator simulation processing unit 244 also transmits the generator simulation data to the BG supply and demand management device 10 via the inter-device transmission / reception unit 21 to cooperate with the BG supply and demand management device 10.

[0053] The control planning unit 245 (an example of a second planning unit) generates an operation plan for every five minutes based on the demand forecast value and the supply availability forecast value predicted by the prediction processing unit 242. The control planning unit 245 acquires control commands at five-minute intervals from the VPP supply and demand management device 20 via the inter-device transmission / reception unit 11. The control planning unit 245 generates an operation plan for every five minutes (five-minute cycle) for each local EMS 400 based on the forecast information (forecast information predicted by the prediction processing unit 242) stored in the forecast value storage unit 234, the master information stored in the master information storage unit 131, and the control commands at five-minute intervals acquired from the BG supply and demand management device 10.

[0054] The control plan unit 245 generates control commands to each local EMS 400 at one-minute intervals based on the operation plan. In addition, the control plan unit 245 stores the operation plan and control commands of each local EMS 400 in the control plan storage unit 236 .

[0055] The control coordination unit 246 (an example of a second control command unit) coordinates by transmitting a control command (second control command) to each local EMS 400 at one-minute intervals based on the five-minute operation plan generated by the control planning unit 245. The control coordination unit 246 transmits the control command to each local EMS 400 via the DEP device 30. The control coordination unit 246 transmits the control command at one-minute intervals (one-minute cycle) to the power supply control device group 4 and the DEP device 30 via the inter-device transmission / reception unit 21.

[0056] In FIG. 1, a system configured from the VPP supply and demand management device 20 and the power supply control device group 4 will be described as a host EMS 200.

[0057] A DEP (Digital Energy Platform) device 30 (an example of a cooperating device) receives, from multiple local EMS devices 40, actual supply and demand values ​​(control actual values) corresponding to control commands (third control commands) for controlling each device in the local EMS 400, converts the received actual supply and demand values ​​into a format compatible with the VPP supply and demand management device 20, and transfers them to the VPP supply and demand management device 20 at one-minute intervals for each local EMS device 40. The DEP device 30 also transfers control commands (second control commands) received from the VPP supply and demand management device 20 to the corresponding local EMS device 40 at one-minute intervals. The DEP device 30 cooperates with another system, for example, a distributed power source monitoring and control platform (local EMS 400), and performs protocol conversion and the like between the distributed power source monitoring and control platform (local EMS 400) and the VPP supply and demand management device 20. The DEP device 30 includes an inter-device transmission / reception unit 31 and a device control unit 32.

[0058] The inter-device transmission / reception unit 31 is a functional unit realized by a communication device such as a network adapter, etc. The inter-device transmission / reception unit 31 transmits and receives information to and from the VPP supply and demand management device 20 and the local EMS device 40 via a dedicated line or a network (e.g., the Internet), and establishes cooperation between the VPP supply and demand management device 20 and the local EMS device 40.

[0059] The device control unit 32 is a functional unit realized by, for example, causing a processor including a CPU to execute a program stored in a storage unit (not shown). The device control unit 32 executes various processes of the DEP device 30. The device control unit 32 includes a performance collection unit 321, a higher-level collaboration unit 322, and a local collaboration unit 323.

[0060] The result collection unit 321, for example, constantly collects control results transmitted from each local EMS 400. The result collection unit 321 collects the control results of each local EMS 400 (third layer) via the inter-device transmission / reception unit 31.

[0061] The upper level collaboration unit 322 converts the control results collected by the result collection unit 321 from each local EMS 400 into a protocol suitable for the VPP supply and demand management device 20, and transmits the control results per minute to the VPP supply and demand management device 20 for collaboration. The upper level collaboration unit 322 transmits the control results per minute to the VPP supply and demand management device 20 via the inter-device transmission / reception unit 31.

[0062] The local collaboration unit 323 collaborates by transmitting the control command received from the VPP supply and demand management device 20 to each local EMS 400 (local EMS device 40) at one-minute intervals. The local collaboration unit 323 transmits the control command every minute to each local EMS 400 (local EMS device 40) via the inter-device transmission / reception unit 31. Furthermore, the local cooperation unit 323 receives master information from the VPP supply and demand management device 20 at any time, and transmits the master information to each local EMS 400 (local EMS device 40). It is noted that the DEP device 30 may not perform the above-described protocol conversion, and the protocol conversion may be performed by either or both of the distributed power supply monitoring and control platform (local EMS 400) and the VPP supply and demand management device 20.

[0063] The local EMS device 40 (an example of a third management device) is a management device that manages equipment including distributed power sources in the local EMS hierarchy, and transmits control commands (third control commands) to equipment including distributed power sources at intervals of seconds shorter than one minute (at intervals of a fourth unit period, for example, one to twenty seconds) so that the control commands (second control commands) from the VPP supply and demand management device 20 can be achieved at one-minute intervals.

[0064] The local EMS device 40 also includes a performance record collection unit 421 , a control planning unit 422 , and a control cooperation unit 423 . In FIG. 1, a system configured from the local EMS device 40 and the distributed power sources 5 will be described as a local EMS 400.

[0065] The inter-device transmission / reception unit 41 is a functional unit realized by a communication device such as a network adapter, etc. The inter-device transmission / reception unit 41 transmits and receives information to and from the DEP device 30 via a dedicated line or a network (e.g., the Internet), and cooperates with the VPP supply and demand management device 20 and the local EMS device 40.

[0066] The device control unit 42 is a functional unit realized by, for example, causing a processor including a CPU to execute a program stored in a storage unit (not shown). The device control unit 42 executes various processes of the local EMS device 40. The device control unit 42 includes a performance collection unit 421, a control planning unit 422, and a control cooperation unit 423.

[0067] The result collection unit 421 collects, for example, from each device of each local EMS 400, information indicating control results (actual power amount at the power receiving point (forward flow or reverse flow), actual power generation amount, chargeable amount (kWh), dischargeable amount (kWh), etc.), device status (for example, operating status, fault status, and connection status), and mask information (rated output, power outage capacity, etc.). Note that if the mask information of each device cannot be obtained, the result collection unit 421 receives communication from the higher level (VPP supply and demand management device 20). Furthermore, the result collection unit 421 transmits the collected result values ​​to the VPP supply and demand management device 20 via the DEP device 30 at one-minute intervals.

[0068] The control planning unit 422 (an example of a third planning unit) generates an operation plan for each device at one-minute intervals based on the control performance values ​​collected by the performance collection unit 421, the master information, and the control commands at one-minute intervals obtained from the VPP supply and demand management device 20, and generates control commands for each device at intervals of several seconds to 20 seconds based on the operation plan.

[0069] The control coordinator 423 (an example of a third control command unit) transmits the control command (third control command) generated by the control planning unit 422 to each device of each local EMS 400 at intervals of several to 20 seconds to coordinate with the devices. The control coordinator 246 transmits the control command to each local EMS 400 via the DEP device 30. The control coordinator 246 transmits the control command at one-minute intervals (one-minute cycle) to the power supply control device group 4 and the DEP device 30 via the inter-device transmitter / receiver 21.

[0070] FIG. 2 is a block diagram showing an example of the local EMS 400 in this embodiment. In the example shown in FIG. 2, the local EMS 400 includes an ICE terminal 40a, a storage battery 5a, a solar power generation system 5b, and an EV (Electric Vehicle) 5c.

[0071] The ICE terminal 40a can communicate with the power receiving point (smart meter), the storage battery 5a, the solar power generation device 5b, and the EV 5c, and can collect information from these devices and execute control. 2, an ICE terminal 40a is an example of the above-mentioned local EMS device 40. In addition, in FIG. 2, a storage battery 5a, a solar power generation device 5b, and an EV 5c correspond to the above-mentioned distributed power generation group 5.

[0072] Next, the operation of the power supply and demand management system according to this embodiment will be described with reference to the drawings. FIG. 3 is a diagram showing an outline of the operation of the power supply and demand management system 1 according to this embodiment.

[0073] 3, the electricity supply and demand management system 1 includes a BG supply and demand management device 10 at the highest EMS hierarchical level, a VPP supply and demand management device 20 at an upper EMS hierarchical level, and a DEP device 30 / local EMS device 40 at a local EMS hierarchical level. Each of the management devices at the three hierarchical levels, the BG supply and demand management device 10, the VPP supply and demand management device 20, and the DEP device 30 / local EMS device 40, executes processes that cycle through "measurement," "prediction," "planning," and "control."

[0074] As shown in process S11, the BG supply and demand management device 10 executes the process of rotating the above cycle in a 30-minute cycle. In the BG supply and demand management device 10, in the "prediction" step, the prediction processing unit 142 predicts all renewable energy sources and consumers under the BG in group units. In addition, in the "planning" step, the power generation planning unit 144 formulates a 30-minute power generation plan (including VPP) that minimizes costs or maximizes profits for the entire BG (process S11).

[0075] In "control," the control linking unit 145 transmits control commands to the power generators (including VPPs) in 5-minute increments to achieve 30-minute simultaneous equalization (matching power demand and supply) (process S12). In addition, in the "measurement" step, the result collection unit 141 collects the 5-minute results of the power generator (including the VPP).

[0076] Furthermore, as shown in process S13, the VPP supply and demand management device 20 executes a process of rotating the above cycle in five-minute cycles. In the VPP supply and demand management device 20, in the "prediction" step, the prediction processing unit 242 predicts renewable energy and demand for each individual consumer, and predicts the load for each power receiving point.

[0077] In addition, in "planning," the control planning unit 245 calculates the adjustable amount and adjustment cost for each consumer based on the prediction results, and formulates a 5-minute plan that minimizes costs in accordance with control commands from the BG (process S13). The prediction processing unit 242 transmits the predicted value to the BG supply and demand management device 10 to cooperate with it (process S14).

[0078] In addition, in the "control" step, the control coordinator 246 transmits control commands to each consumer in one-minute increments in order to achieve the five-minute control command from the BG (process S15). In addition, in the "measurement" step, the result collection unit 141 collects one-minute results of each customer.

[0079] Furthermore, the DEP device 30 / local EMS device 40 executes a process of rotating the above cycle in one-minute cycles. In the DEP device 30 / local EMS device 40, in the "planning" step, the control planning unit 422 formulates a distribution plan for power receiving point control commands to consumer-side devices.

[0080] In "control," the control cooperation unit 423 transmits a control command to control each device every 20 seconds (second control in the case of autonomous operation) based on the allocated plan (process S16). In addition, in the "measurement" step, the result collection unit 421 collects the 20-second results of each device (the results of second control in the case of independent operation). The record collection unit 421 transmits the collected record to the VPP supply and demand management device 20 to cooperate with it (process S17).

[0081] Next, with reference to FIG. 4, the operation of the BG supply and demand management device 10 in this embodiment will be described in detail. FIG. 4 is a flowchart showing an example of the operation of the BG supply and demand management device 10 in this embodiment.

[0082] 4, the result collection unit 141 of the BG supply and demand management device 10 acquires the control results of each power generator and VPP at five-minute intervals (step S101). The result collection unit 141 collects the control results of each power generator and VPP at five-minute intervals via the inter-device transmission / reception unit 11, and stores, for example, the identification information of each power generator and VPP, the date and time information of the control, and the control result value in the result value storage unit 132 in association with each other.

[0083] Next, the prediction processing unit 142 of the BG supply and demand management device 10 performs demand prediction, renewable energy power generation prediction, and controllable amount prediction based on the acquired actual value, master information, and weather information (step S102). The prediction processing unit 142 performs demand prediction, renewable energy power generation prediction, and controllable amount prediction for an area not managed by a higher-level EMS (not managed by the VPP supply and demand management device 20) based on, for example, the supply and demand actual value collected by the actual value collection unit 141, the master information stored in the master information storage unit 131, and the weather information stored in the weather information storage unit 133. The prediction processing unit 142 stores the predicted value in the predicted value storage unit 134.

[0084] Next, the BG supply and demand management device 10 acquires VPP power generation simulation data (generator simulation data) from the VPP supply and demand management device 20 (step S103). The power generation planning unit 144 of the BG supply and demand management device 10 acquires, for example, the VPP power generation simulation data (generator simulation data) from the VPP supply and demand management device 20 via the inter-device transmission and reception unit 11.

[0085] Next, the power generation planning unit 144 generates a charge / discharge plan for each power generator and VPP every 30 minutes based on the predicted value, master information, and VPP power generation simulation data (step S104). The power generation planning unit 144 generates a charge / discharge plan for each power generator and VPP every 30 minutes (30-minute cycle) based on the prediction information stored in the prediction value storage unit 134 (the prediction information predicted by the prediction processing unit 142 and the prediction information acquired from the VPP supply and demand management device 20), the master information stored in the master information storage unit 131, and the power generator simulation data. The power generation planning unit 144 stores the generated charge / discharge plans for each 30 minutes in the plan information storage unit 135.

[0086] Next, the control linking unit 145 of the BG supply and demand management device 10 transmits the charge and discharge plan for every 30 minutes to the VPP supply and demand management device 20 to link with it (step S105).

[0087] Next, the control linking unit 145 generates control commands for each power generator and VPP every 5 minutes based on the charge / discharge plan every 30 minutes (step S106).

[0088] Next, the control collaborator 145 transmits a control command every 5 minutes to the VPP supply and demand management device 20 in VPP units to collaborate (step S107). The control collaborator 145 transmits the control command every 5 minutes to the VPP supply and demand management device 20 via the inter-device transmitter / receiver 11. After processing step S107, the control collaborator 145 returns the processing to step S101, and repeats the processing from step S101 to step S107 every 30 minutes.

[0089] Next, with reference to FIG. 5, the operation of the VPP supply and demand management device 20 in this embodiment will be described in detail. FIG. 5 is a flowchart showing an example of the operation of the VPP supply and demand management device 20 in this embodiment.

[0090] 5, the result collection unit 241 of the VPP supply and demand management device 20 acquires the result values ​​of each local EMS device 40 at one-minute intervals via the DEP device 30 (step S201). The result collection unit 241 collects the control results of each local EMS device 40 at one-minute intervals via the inter-device transmission / reception unit 21, and stores, for example, the identification information of each local EMS 400, the date and time information of the control, and the control result value in association with each other in the result value storage unit 232.

[0091] Next, the prediction processing unit 242 of the VPP supply and demand management device 20 executes demand prediction, renewable energy power generation prediction, and controllable amount prediction based on the acquired actual value, master information, and weather information (step S202). The prediction processing unit 242 performs demand prediction, renewable energy power generation prediction, and controllable amount prediction based on, for example, the supply and demand actual value collected by the actual value collection unit 241, the master information stored in the master information storage unit 231, and the weather information stored in the weather information storage unit 233. The prediction processing unit 242 stores the predicted predicted value in the predicted value storage unit 234.

[0092] Next, the generator simulation processing unit 244 of the VPP supply and demand management device 20 aggregates the distributed power sources based on the acquired performance values ​​and master information, generates VPP power generation simulation data (generator simulation data), and transmits the data to the BG supply and demand management device 10 for collaboration (step S203). The generator simulation processing unit 244 transmits the VPP power generation simulation data (generator simulation data) to the BG supply and demand management device 10 via the inter-device transmission and reception unit 21. In addition, the generator simulation processing unit 244 stores the generated VPP power generation simulation data (generator simulation data) in the generator simulation data storage unit 235.

[0093] Next, the VPP supply and demand management device 20 cooperates by transmitting the predicted value in VPP units to the BG supply and demand management device 10 (step S204). The prediction processing unit 242 transmits the predicted value to the BG supply and demand management device 10 via the inter-device transmission and reception unit 21.

[0094] Next, the control planning unit 245 of the VPP supply and demand management device 20 receives command values ​​in VPP units at 5-minute intervals from the BG supply and demand management device 10 (step S205). The control planning unit 245 receives command values ​​in VPP units from the BG supply and demand management device 10 via the inter-device transmission / reception unit 21.

[0095] Next, the control planning unit 245 generates a control command for each minute of each local EMS device 40 based on the actual value, the predicted value, the master information, and the command value (step S206).

[0096] Next, the control coordination unit 246 of the VPP supply and demand management device 20 transmits a one-minute control command to the local EMS device 40 via the DEP device 30 to coordinate with the local EMS device 40 (step S207). The control coordination unit 246 transmits the one-minute control command to the DEP device 30 via the inter-device transmission / reception unit 21.

[0097] Next, the control collaborator 246 transmits the control results of each VPP in response to the control command value at a 5-minute cycle from the BG supply and demand management device 10 to the BG supply and demand management device 10 to collaborate (step S208). The control collaborator 246 transmits the control results of each VPP to the BG supply and demand management device 10 via the inter-device transmitter / receiver 21. After processing step S208, the control collaborator 246 returns the process to step S201, and repeats the processes from step S201 to step S208 at a 5-minute cycle.

[0098] Next, the redistribution process of the VPP supply and demand management device 20 will be described with reference to FIG. FIG. 6 is a flowchart showing an example of the reallocation process of the VPP supply and demand management device 20 in this embodiment.

[0099] As shown in FIG. 6, first, the performance record collector 241 of the VPP supply and demand management device 20 collects performance values ​​of each local EMS device 40 via the DEP device 30 at one-minute intervals (step S211).

[0100] Next, the control planning unit 245 of the VPP supply and demand management device 20 estimates the overall VPP performance for the 30-minute period based on the collected performance values, and calculates the shortage amount relative to the command value (step S212).

[0101] Next, the control planning unit 245 determines whether the shortage exceeds a preset threshold (step S213). If the shortage exceeds the preset threshold (step S211: YES), the control planning unit 245 proceeds to step S214. If the shortage does not exceed the preset threshold (step S211: NO), the control planning unit 245 ends the process.

[0102] In step S214, the control planning unit 245 calculates the reliability based on the response performance of each resource (each power source and VPP).

[0103] Next, the control planning unit 245 reduces the control allocation amount of the resource with low reliability and outputs a control command to reallocate it (step S215). The control planning unit 245 generates the control command to reallocate it, and the control collaborating unit 246 transmits the control command to reallocate it to the local EMS device 40 via the inter-device transmitting / receiving unit 21 and the DEP device 30. After the processing of step S215, the control collaborating unit 246 ends the processing.

[0104] Next, the operation of the DEP device 30 in this embodiment will be described in detail with reference to FIG. FIG. 7 is a flowchart showing an example of the operation of the DEP device 30 in this embodiment.

[0105] 7, the result collection unit 321 of the DEP device 30 receives result values ​​from each local EMS device 40 at any time (step S301). The result collection unit 321 collects the control results of each local EMS 400 via the inter-device transmission / reception unit 31.

[0106] Next, the upper linkage unit 322 of the DEP device 30 transmits the received performance values ​​to the VPP supply and demand management device 20 at one-minute intervals to cooperate (step S302). The upper linkage unit 322 converts the collected control performance into a protocol suitable for the VPP supply and demand management device 20, and transmits it to the VPP supply and demand management device 20 via the inter-device transmission / reception unit 31 as a one-minute control performance.

[0107] Next, the local cooperation unit 323 of the DEP device 30 receives a control command from the VPP supply and demand management device 20 as needed (step S303).

[0108] Next, the local cooperation unit 323 cooperates by transmitting the received control command to the local EMS device 40 at one-minute intervals (step S304). The local cooperation unit 323 transmits the control command to the local EMS device 40 via the inter-device transmission / reception unit 31.

[0109] Next, the local cooperation unit 323 receives master information from the VPP supply and demand management device 20 at any time (step S305).

[0110] Next, the local collaboration unit 323 collaborates by transmitting the received master information to the local EMS device at one-minute intervals (step S306). The local collaboration unit 323 transmits the master information to the local EMS device 40 via the inter-device transmission / reception unit 31. After the process of step S306, the local collaboration unit 323 returns the process to step S301 and repeats the processes of steps S301 to S306.

[0111] Next, the operation of the DEP device 30 in this embodiment will be described in detail with reference to FIG. FIG. 8 is a flowchart showing an example of the operation of the local EMS device 40 in this embodiment.

[0112] 8, the performance data collector 421 of the local EMS device 40 collects performance data, performance status, and master information of each device at intervals of several to 20 seconds (step S401). The performance data collector 421 collects performance data, performance status, and master information of each device from each device of the distributed power generation group 5 via the device-to-device transmitter-receiver 41, for example.

[0113] Next, the control planning unit 422 of the local EMS device 40 receives the command value (target value of the power receiving point) from the VPP supply and demand management device 20 at one-minute intervals via the DEP device 30 (step S402). The control planning unit 422 receives the command value (target value of the power receiving point) from the VPP supply and demand management device 20 via the inter-device transmission / reception unit 41.

[0114] Next, the control planning unit 422 irregularly receives master information of the equipment from the VPP supply and demand management device 20 via the DEP device 30 (step S403). The control planning unit 422 receives equipment master information (rated output, power outage capacity, control availability time period, battery protection setting) and customer contract master information (contracted power (forward flow or reverse flow)) from the VPP supply and demand management device 20 via the inter-device transmission / reception unit 41 via the DEP device 30.

[0115] Next, the control planning unit 422 generates a control command for each device every several to 20 seconds based on the actual value, the command value (target value of the power receiving point), and the master information (step S404).

[0116] Next, the control linking unit 423 of the local EMS device 40 transmits a control command to each device every several to 20 seconds (step 405).

[0117] Next, the control collaborator 423 transmits the collected performance values ​​to the VPP supply and demand management device 20 at one-minute intervals to collaborate (step S406). The control collaborator 423 transmits the performance values ​​collected by the performance collection unit 421 at one-minute intervals to the VPP supply and demand management device 20 via the DEP device 30, via the inter-device transmitter / receiver 41. After processing step S406, the control collaborator 423 returns the process to step S401, and repeats the processes from step S401 to step S406.

[0118] As described above, the power supply and demand management system 1 according to this embodiment is a power supply and demand management system that manages the supply and demand of power for a BG (balance group) consisting of a plurality of distributed power sources and generators, and includes a BG supply and demand management device 10 (first management device) and a VPP supply and demand management device 20 (second management device). The BG supply and demand management device 10 manages the supply and demand of power in the highest EMS hierarchical level (first hierarchical level), which is the highest hierarchical level of the BG. The VPP supply and demand management device 20 manages the supply and demand of power in an upper EMS hierarchical level (second hierarchical level), which is a hierarchical level lower than the highest EMS hierarchical level of the BG supply and demand management device 10. Furthermore, based on the actual supply and demand values ​​acquired from the VPP supply and demand management device 20, the BG supply and demand management device 10 transmits a first control command to the VPP supply and demand management device 20 at 5-minute intervals (second unit period intervals) shorter than 30 minutes so as to match the supply and demand of power in the BG within a predetermined 30-minute period (first unit period). The VPP supply and demand management device 20 sends a second control command to a local EMS hierarchy (third hierarchy), which is a hierarchy lower than the upper EMS hierarchy, at intervals of one minute (third unit period), which is shorter than five minutes, so that the first control command can be achieved at five-minute intervals.

[0119] As a result, the power supply and demand management system 1 according to this embodiment manages at multiple levels, with the lower the level, the shorter the unit period of control, and therefore can efficiently and appropriately control to match the supply and demand of power in the BG using a wide variety of distributed power sources. Therefore, the power supply and demand management system 1 according to this embodiment allows retail electricity suppliers to handle a wide variety of distributed power sources and to collectively monitor and control everything from the BG to individual distributed power sources. In other words, the power supply and demand management system 1 according to this embodiment can efficiently manage power supply and demand using distributed power sources.

[0120] Furthermore, the power supply and demand management system 1 according to this embodiment can manage a large amount of consumer distributed power sources quickly, automatically, and at low cost by linking the VPP supply and demand management device 20 and the BG supply and demand management device 10. Furthermore, the power supply and demand management system 1 according to this embodiment can achieve high-speed, automatic, and low-cost control by hierarchizing the control target / time granularity both during grid-connected operation and during independent operation.

[0121] In this embodiment, the BG supply and demand management device 10 includes a prediction processing unit 142 (first prediction processing unit), a power generation planning unit 144 (first planning unit), and a control coordination unit 145 (first control command unit). The prediction processing unit 142 predicts a power demand forecast value and a supply availability forecast value for the BG based on actual supply and demand values ​​for the first control command collected at five-minute intervals. The power generation planning unit 144 generates an operation plan for every 30 minutes based on the demand forecast value and supply availability forecast value predicted by the prediction processing unit 142. The control coordination unit 145 transmits a first control command at five-minute intervals based on the 30-minute operation plan generated by the power generation planning unit 144. The VPP supply and demand management device 20 includes a prediction processing unit 242 (second prediction processing unit), a control planning unit 245 (second planning unit), and a control coordination unit 246 (second control command unit). The prediction processing unit 242 predicts a power demand forecast value and a supply availability forecast value in a higher EMS hierarchy based on actual supply and demand values ​​for the second control command collected at one-minute intervals (intervals of a third unit period). The control planning unit 245 generates an operation plan for every five minutes based on the demand forecast value and supply availability forecast value predicted by the prediction processing unit 242. The control collaborating unit 246 transmits a second control command at one-minute intervals based on the five-minute operation plan generated by the control planning unit 245.

[0122] As a result, the electricity supply and demand management system 1 according to this embodiment executes cyclic processing of predicting demand forecast values ​​and supply availability forecast values, formulating operation plans, transmitting control commands based on the operation plans, and collecting actual value results in each of the BG supply and demand management device 10 and the VPP supply and demand management device 20, and executes cyclic processing of the VPP supply and demand management device 20 in a shorter cycle than the BG supply and demand management device 10. Therefore, the electricity supply and demand management system 1 according to this embodiment can achieve stable and efficient management of electricity supply and demand using the BG supply and demand management device 10 and the VPP supply and demand management device 20.

[0123] In this embodiment, the power generators managed by the VPP supply and demand management device 20 include a VPP (virtual power plant) that operates multiple distributed power sources as a virtual power plant. The power generation planning unit 144 generates an operation plan for every 30 minutes based on the demand forecast value, the supply availability forecast value, and generator simulation data that indicates the characteristics of the power generator in the VPP. The control linkage unit 145 transmits a first control command to control the power generator, including the VPP, at five-minute intervals based on the 30-minute operation plan.

[0124] As a result, the electricity supply and demand management system 1 according to this embodiment can appropriately and efficiently manage BGs including VPPs.

[0125] The power supply and demand management system 1 according to this embodiment also includes a local EMS device 40. The local EMS device 40 (third management device) manages devices including distributed power sources in the local EMS hierarchy, and transmits a third control command to the devices including distributed power sources at intervals of seconds shorter than one minute (at intervals of a fourth unit period) so that the second control command can be achieved at one-minute intervals.

[0126] As a result, the power supply and demand management system 1 according to this embodiment controls the lower hierarchy (local EMS hierarchy) at even shorter intervals of seconds (intervals of the fourth unit period), thereby enabling more appropriate and efficient management of BG.

[0127] The electricity supply and demand management system 1 according to this embodiment also includes a DEP device 30 (cooperation device). The DEP device 30 receives actual supply and demand values ​​in response to the third control command from the multiple local EMS devices 40, converts the received actual supply and demand values ​​into a format compatible with the VPP supply and demand management device 20, and transfers the converted values ​​to the VPP supply and demand management device 20 at one-minute intervals for each local EMS device 40, and also transfers the second control command received from the VPP supply and demand management device 20 to the corresponding local EMS device 40 at one-minute intervals.

[0128] As a result, the power supply and demand management system 1 according to this embodiment includes the DEP device 30 (linked device), which enables the VPP supply and demand management device 20 to appropriately collect control results in response to various specifications of the local EMS 400. Therefore, the power supply and demand management system 1 according to this embodiment can quickly and automatically provide the BG with highly accurate load prediction, power generation prediction, and DR possible amount prediction results.

[0129] Furthermore, the power supply and demand management system 1 according to this embodiment is a power supply and demand management system that manages the supply and demand of power for a BG consisting of multiple distributed power sources and generators, and includes a BG supply and demand management device 10 and a VPP supply and demand management device 20. The BG supply and demand management device 10 manages the overall power supply and demand of the BG. The VPP supply and demand management device 20 is a lower hierarchical level than the BG, and manages the power supply and demand of a VPP that operates multiple distributed power sources as a virtual power plant. In cooperation with the VPP supply and demand management device 20, the BG supply and demand management device 10 transmits a control command to the VPP supply and demand management device 20 so as to match the power supply and demand of the BG within a predetermined unit period, in accordance with a demand forecast value and a supply availability forecast value based on actual supply and demand values ​​acquired from the VPP supply and demand management device 20, and generator simulation data that indicates the characteristics of the generator in the VPP.

[0130] As a result, the electricity supply and demand management system 1 according to this embodiment can provide highly accurate load forecasts, power generation forecasts, and DR possible amount forecast results to the BG quickly and automatically by linking the BG supply and demand management device 10 and the VPP supply and demand management device 20, and can efficiently manage electricity supply and demand using distributed power sources.

[0131] Furthermore, the power supply and demand management method according to the present embodiment is a power supply and demand management method for managing power supply and demand of a BG in a power supply and demand management system 1 including a BG supply and demand management device 10 that manages power supply and demand in a highest EMS hierarchical level, which is the highest hierarchical level of a BG consisting of a plurality of distributed power sources and generators, and a VPP supply and demand management device 20 that manages power supply and demand in an upper EMS hierarchical level, which is a hierarchical level lower than the highest EMS hierarchical level of the BG supply and demand management device 10, and includes a first step and a second step. In the first step, the BG supply and demand management device 10 transmits a first control command to the VPP supply and demand management device 20 at five-minute intervals, which is shorter than 30 minutes, based on actual supply and demand values ​​acquired from the VPP supply and demand management device 20, so as to match power supply and demand in the BG within a predetermined 30-minute period. In the second step, the VPP supply and demand management device 20 transmits a second control command to a local EMS hierarchical level, which is a hierarchical level lower than the upper EMS hierarchical level, at one-minute intervals, which is shorter than five minutes, so as to achieve the first control command at five-minute intervals.

[0132] As a result, the power supply and demand management method according to this embodiment has the same effects as the power supply and demand management system 1 described above, and can efficiently manage power supply and demand using distributed power sources.

[0133] Furthermore, the power supply and demand management method according to the present embodiment is a power supply and demand management method for managing power supply and demand of a BG in a power supply and demand management system 1 that includes a BG supply and demand management device 10 that manages the overall power supply and demand of a BG consisting of multiple distributed power sources and generators, and a VPP supply and demand management device 20 that is a lower hierarchical level than the BG and manages power supply and demand in a VPP that operates multiple distributed power sources as a virtual power plant, and includes a first step. In the first step, the BG supply and demand management device 10, in cooperation with the VPP supply and demand management device 20, transmits a control command to the VPP supply and demand management device 20 to match the power demand and demand in the BG for a predetermined unit period (e.g., every 30 minutes) in accordance with a demand forecast value and a supply availability forecast value based on actual supply and demand values ​​acquired from the VPP supply and demand management device 20, and simulated power generation data that indicates the characteristics of the generator in the VPP.

[0134] As a result, the power supply and demand management method according to this embodiment has the same effects as the power supply and demand management system 1 described above, and can efficiently manage power supply and demand using distributed power sources.

[0135] FIG. 9 is a diagram illustrating the hardware configuration of each device in the electricity supply and demand management system 1 according to this embodiment. The devices shown in FIG. 9 illustrate the hardware configuration of each device (BG supply and demand management device 10, VPP supply and demand management device 20, DEP device 30, local EMS device 40, and ICE terminal 40a) of the electricity supply and demand management system 1.

[0136] As shown in FIG. 9, each device of the electricity supply and demand management system 1 (BG supply and demand management device 10, VPP supply and demand management device 20, DEP device 30, local EMS device 40, and ICE terminal 40a) includes a communication device H11, a memory H12, and a processor H13.

[0137] The communication device H11 is a communication device such as a LAN card that can be connected to the network NW1. The memory H12 is a storage device such as RAM, flash memory, HDD, etc., and stores various information and programs used by each device (BG supply and demand management device 10, VPP supply and demand management device 20, DEP device 30, local EMS device 40, and ICE terminal 40a).

[0138] The processor H13 is a processing circuit including, for example, a CPU, etc. The processor H13 executes various processes of each device (the BG supply and demand management device 10, the VPP supply and demand management device 20, the DEP device 30, the local EMS device 40, and the ICE terminal 40a) by executing programs stored in the memory H12.

[0139] The present disclosure is not limited to the above-described embodiments, and can be modified within the scope of the present disclosure. For example, in the above embodiment, an example was described in which each of the BG supply and demand management device 10, the VPP supply and demand management device 20, the DEP device 30, the local EMS device 40, and the ICE terminal 40a is realized as a single device, but this is not limited to this and each may be realized by multiple devices.

[0140] Furthermore, in the above embodiment, for the sake of convenience, the power supply and demand management system 1 has been described as having one VPP supply and demand management device 20 and one local EMS device 40, but this is not limited to this, and the system may be configured to have multiple VPP supply and demand management devices 20 and multiple local EMS devices 40.

[0141] Furthermore, in the above embodiment, an example has been described in which the external server 2 is one server device, but this is not limited to this, and a server device (multiple server devices) may be provided for each service to be provided.

[0142] Each component of the above-described power supply and demand management system 1 has an internal computer system. A program for realizing the function of each component of the above-described power supply and demand management system 1 may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read into a computer system and executed to perform processing in each component of the above-described power supply and demand management system 1. Here, "reading a program recorded on a recording medium into a computer system and executing it" includes installing the program into a computer system. The "computer system" here includes an OS and hardware such as peripheral devices.

[0143] Furthermore, a "computer system" may include multiple computer devices connected via a network, including communication lines such as the Internet, WAN, LAN, and dedicated lines. Furthermore, a "computer-readable recording medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, as well as storage devices such as hard disks built into a computer system. Thus, the recording medium storing the program may be a non-transitory recording medium such as a CD-ROM.

[0144] The recording medium also includes internal or external recording media accessible from a distribution server for distributing the program. The program may be divided into multiple parts, downloaded at different times, and then combined by each component of the electricity supply and demand management system 1, or each divided program may be distributed by a different distribution server. Furthermore, the term "computer-readable recording medium" also includes a medium that stores a program for a certain period of time, such as volatile memory (RAM) within a computer system that serves as a server or client when a program is transmitted over a network. The program may also be a medium for implementing part of the above-described functions. Furthermore, the program may be a so-called differential file (differential program) that can realize the above-described functions in combination with a program already stored in the computer system. [Explanation of symbols]

[0145] 1...electricity supply and demand management system, 2...external server, 3, 4...power supply control device group, 5...distributed power source group, 5a...storage battery, 5b...photovoltaic power generation, 5c...EV, 10...BG supply and demand management device, 11, 21, 31, 41...inter-device transmission / reception unit, 12, 22...network communication unit, 13, 23...device memory unit, 14, 24, 32, 42...device control unit, 20...VPP supply and demand management device, 30...DEP device, 40...local EMS device, 40a...ICE terminal, 131, 231...master information memory unit, 132, 232...actual value memory unit, 133, 233... Weather information storage unit, 134, 234... predicted value storage unit, 135... plan information storage unit, 141, 241, 321, 421... performance collection unit, 142, 242... prediction processing unit, 143, 243... master management unit, 144... power generation planning unit, 145, 246, 423... control linkage unit, 235... generator simulation data storage unit, 236... control plan storage unit, 244... generator simulation processing unit, 245, 422... control planning unit, 322... upper linkage unit, 323... local linkage unit, 200... upper EMS, 400... local EMS, NW1... network

Claims

1. An electric power supply and demand management system that manages electric power supply and demand for a balance group of a plurality of distributed power sources and generators, a first management device that manages the overall power supply and demand of the balance group; a second management device that is a lower layer of the balance group and manages power supply and demand in a virtual power plant that operates a plurality of distributed power sources as a virtual power plant; Equipped with The first management device In cooperation with the second management device, a control command is sent to the second management device so as to match the demand and supply of power in the balance group within a predetermined unit period, in accordance with a demand forecast value and a supply availability forecast value based on actual supply and demand values ​​acquired from the second management device, and generator simulation data indicating the characteristics of a generator in the virtual power plant. Electricity supply and demand management system.

2. An electric power supply and demand management method for managing electric power supply and demand of a balance group in an electric power supply and demand management system including a first management device that manages the overall electric power supply and demand of a balance group consisting of a plurality of distributed power sources and generators, and a second management device that is a lower hierarchical level of the balance group and manages the electric power supply and demand of a virtual power plant that operates a plurality of distributed power sources as a virtual power plant, comprising: The first management device cooperates with the second management device and transmits a control command to the second management device so as to match the demand and supply of power in the balance group within a predetermined unit period, in accordance with a demand forecast value and a supply availability forecast value based on the actual supply and demand value acquired from the second management device and generator simulation data indicating the characteristics of the generator as a generator in the virtual power plant. Electricity supply and demand management methods.

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