Power supply and demand management system and power 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 a power supply and demand management system and a power supply and demand management method.

Background Art

[0002] Retail electric power providers need to match the demand of customers under their management with the power generation amount of generators or the amount of power purchased every 30 minutes, and there is a concept of BG (Balancing Group) to facilitate this management. Also, recently, the number of small power sources introduced on the customer side has been increasing, and there is a known VPP (Virtual Power Plant) in which an operator called an aggregator collectively monitors and controls these individual power sources as if they were a single power plant (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the prior art, it is difficult for retail electric power providers to handle a wide variety of distributed power sources, and a mechanism for collectively monitoring and controlling from BG to individual distributed power sources has been demanded.

[0005] The present disclosure has been made to solve the above problems, and an object thereof is to provide a power supply and demand management system and a power supply and demand management method capable of efficiently managing power supply and demand using distributed power sources.

Means for Solving the Problems

[0006] To solve the above problems, the present disclosure provides a power supply and demand management system for managing the power supply and demand of a balance group by a plurality of distributed power sources and generators, comprising: a first management device for managing the overall power supply and demand of the balance group; and a second management device for managing the power supply and demand in a virtual power plant that is a lower hierarchy of the balance group and operates a plurality of distributed power sources as a virtual power plant. The first management device cooperates with the second management device and, according to a demand prediction value and a supply prediction value based on the supply and demand actual performance value obtained from the second management device, and generator simulation data indicating the characteristics of the generator in the virtual power plant, transmits 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.

[0007] In addition, the present disclosure provides a power supply and demand management method for managing the power supply and demand of the balance group of a power supply and demand management system comprising: a first management device for managing the overall power supply and demand of the balance group by a plurality of distributed power sources and generators; and a second management device for managing the power supply and demand in a virtual power plant that is a lower hierarchy of the balance group and operates a plurality of distributed power sources as a virtual power plant. The first management device cooperates with the second management device and, according to a demand prediction value and a supply prediction value based on the supply and demand actual performance value obtained from the second management device, and generator simulation data indicating the characteristics of the generator in the virtual power plant, transmits 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.

Advantages of the Invention

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

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

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Figure 9

Mode for Carrying Out the Invention

[0010] Hereinafter, a power supply and demand management system and a 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 the power 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 power supply and demand management device 10, a VPP power supply and demand management device 20, a DEP device 30, a local EMS device 40, a power supply control device group (3, 4), and a distributed power supply group 5.

[0012] Note that the BG power supply and demand management device 10 and the external server 2, and the VPP power supply and demand management device 20 and the external server 2 can be connected via the network NW1. Also, the devices between the BG supply and demand management device 10 and the VPP supply and demand management device 20, between the VPP supply and demand management device 20 and the DEP device 30, and between the DEP device 30 and the local EMS device 40 are connected via dedicated lines or a network (for example, the Internet).

[0013] Also, the devices between the BG supply and demand management device 10 and the power control device group 3, between the VPP supply and demand management device 20 and the power control device group 4, and between the local EMS device 40 and the distributed power source group 5 are connected via dedicated lines or a network (for example, the Internet).

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

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

[0016] The BG power demand and supply management device 10 (an example of the first management device) manages the power demand and supply in the top-level EMS (Energy Management System) layer (the first layer), which is the top layer of the BG (Balance Group) composed of a plurality of distributed power sources and generators. The BG power demand and supply management device 10 cooperates with the VPP power demand and supply management device 20, and according to the demand prediction value and the supply availability prediction value (for example, renewable energy power generation prediction and controllable quantity prediction) based on the demand and supply performance values obtained from the VPP power demand and supply management device 20, and the generator simulation data indicating the characteristics of the generator in the VPP, at a predetermined unit period (for example, 30 minutes), it sends a control command to the VPP power demand and supply management device 20 so that the power demand and supply in the BG match. Here, the VPP (Virtual Power Plant) is a concept in which an operator called an aggregator collectively monitors and controls the power of any number of power sources (a plurality of distributed power sources) and treats them as if they were a single power plant, that is, a virtual power plant that operates a plurality of distributed power sources as a virtual power plant.

[0017] Specifically, based on the demand and supply performance values obtained from the VPP power demand and supply management device 20, the BG power demand and supply management device 10 sends a control command (the first control command) to the VPP power demand and supply management device 20 at 5-minute intervals (the interval of the second unit period), which is shorter than 30 minutes, so that the power demand and supply in the BG match within a predetermined 30 minutes (the first unit period). Note that the BG power demand and supply management device 10 also directly manages some demands and power generations that do not belong to the second management device. In addition, the BG power demand and supply management device 10 includes a device communication transceiver 11, an 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, for example. The inter-device transmission / reception unit 11 transmits and receives information to / from the VPP supply / demand management device 20 via a dedicated line or a network (e.g., the Internet), and cooperates with the VPP supply / demand management device 20. The inter-device transmission / reception unit 11 receives, for example, actual values, variable amounts of power, costs, predicted values, etc. from the VPP supply / demand management device 20. Further, the inter-device transmission / reception unit 11 transmits control commands to the VPP supply / demand management device 20 and the power control device group 3.

[0019] The NW communication unit 12 is a functional unit realized by a communication device such as a network adapter, for example. The NW communication unit 12 is connected to the network NW1 and communicates between the BG supply / demand management device 10 and the external server 2. The NW communication unit 12 is used for, for example, receiving weather information from the external server 2, receiving DR commands, and power market trading, etc.

[0020] The device storage unit 13 stores various information used by the BG supply / 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 the master information of various power sources managed by the BG supply / demand management device 10. The master information includes the maximum output, minimum output, change speed, fuel type, generation cost, startup pattern, stop pattern, and cost information, etc. of the power source. Note that the cost information includes cost information (power price index, adjustment unit price, etc.) when charging a power source as a power storage device. The master information storage unit 131 stores, for example, associating the identification information of various power sources with the master information.

[0022] The actual value storage unit 132 stores, for example, the control actual values (supply / demand actual values) of each generator and VPP collected by the actual value collection unit 141 described later at a 5-minute cycle. The actual value storage unit 132 stores, for example, associating the identification information of each generator and VPP, the date and time information of the control, and the control actual value (supply / demand actual value).

[0023] The weather information storage unit 133 stores the weather information acquired from the external server 2 via the NW communication unit 12. The weather information includes weather prediction information and actual performance information, and includes, for example, predicted values and actual values such as weather, temperature, humidity, sunshine duration, etc.

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

[0025] The plan information storage unit 135 stores the charge and discharge plans of each generator and VPP generated by the power generation plan unit 144 described later every 30 minutes. The plan information storage unit 135 stores, for example, the identification information of each generator and VPP to be controlled in association with the plan information indicating the charge and 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 the program stored in the device storage unit 13. The device control unit 14 executes various processes of the BG supply-demand management device 10. The device control unit 14 includes an actual performance collection unit 141, a prediction processing unit 142, a master management unit 143, a power generation plan unit 144, and a control cooperation unit 145.

[0027] The actual performance collection unit 141 collects the control actual performance of each generator and VPP at a 5-minute cycle, for example. The actual performance collection unit 141 collects the control actual performance of each generator and VPP at a 5-minute cycle via the device-to-device transmission / reception unit 11, and stores, for example, the identification information of each generator and VPP, the date and time information of the control, and the control actual performance value in association with each other in the actual performance value storage unit 132.

[0028] The prediction processing unit 142 (an example of the first prediction processing unit) predicts the demand prediction value and the available supply prediction value of electric power in the BG based on the supply and demand actual result values (control actual results) for the control commands (first control commands) to the VPP supply and demand management device 20 collected at 5-minute intervals. The prediction processing unit 142 performs, for example, demand prediction, renewable energy power generation prediction, and controllable amount prediction outside the upper-level EMS management (outside the management of the VPP supply and demand management device 20) based on the supply and demand actual result values collected by the actual 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. That is, the prediction processing unit 242 predicts the demand prediction value and the available supply prediction value of electric power also for the demand and power generation directly managed by the BG supply and demand management device 10 without belonging to each VPP. The prediction processing unit 142 stores the predicted prediction values in the prediction value storage unit 134.

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

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

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

[0032] The control cooperation unit 145 (an example of the first control command unit) transmits a control command (the first control command) to the VPP supply-demand management device 20 at 5-minute intervals (5-minute cycle) based on the operation plan every 30 minutes generated by the power generation planning unit 144. The control cooperation unit 145 generates a control command (the first control command) at 5-minute intervals (5-minute cycle) for each generator and VPP based on the control performance value (supply-demand performance value) stored in the performance value storage unit 132, the master information stored in the master information storage unit 131, and the charge-discharge plan every 30 minutes stored in the plan information storage unit 135.

[0033] The control cooperation unit 145 transmits the generated control command at 5-minute intervals (5-minute cycle) to the power supply control device group 3 and the VPP supply-demand management device 20 via the device-to-device transmission / reception unit 11. The control cooperation unit 145 transmits and coordinates with the VPP supply-demand management device 20 via the device-to-device transmission / reception unit 11 in units of VPP, for example.

[0034] The VPP supply-demand management device 20 (an example of the second management device) manages the power supply and demand in the upper EMS layer (the second layer), which is a layer lower than the top EMS layer of the BG supply-demand management device 10. That is, the VPP supply-demand management device 20 is a layer lower than the BG and manages the power supply and demand in a VPP that operates a plurality of distributed power sources as a virtual power plant.

[0035] The VPP supply-demand management device 20 transmits a control command (the second control command) to the local EMS layer (the third layer), which is a layer lower than the upper EMS layer, at 1-minute intervals (the interval of the third unit period) shorter than 5 minutes so that the control command (the first control command) can be achieved at 5-minute intervals. In addition, the VPP supply-demand management device 20 includes a device-to-device transmission / reception unit 21, an 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, for example. The inter-device transmission / reception unit 21 transmits and receives information to and from the BG supply / demand management device 10 and between the DEP device 30 via a dedicated line or a network (e.g., the Internet), and cooperates between the VPP supply / demand management device 20 and the DEP device 30. The inter-device transmission / reception unit 21 transmits, for example, the actual value, the variable amount of power, the cost, and the predicted value, etc. to the BG supply / demand management device 10. Also, the inter-device transmission / reception unit 21 receives a control command from the BG supply / demand management device 10.

[0037] Also, the inter-device transmission / reception unit 21 receives, for example, the actual value (the actual value of the local EMS 400), etc. from the DEP device 30. Also, the inter-device transmission / reception unit 21 transmits a control command to the DEP device 30 and the power control device group 4.

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

[0039] The device storage unit 23 stores various information used by the VPP supply / 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 the master information of various devices managed by the VPP supply / demand management device 20. The master information includes the device master information of each device (rated output, power capacity for power outage, controllable time zone, battery protection setting), the customer contract master information (contract power (forward or reverse power flow), adjustment contract plan (fixed or variable), adjustment contract variable price, electricity tariff menu, voltage class, area (demand location information)), etc. The master information storage unit 231 stores, for example, associating the identification information of various devices with the master information.

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

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

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

[0044] The generator simulation data storage unit 235 stores the generator simulation data modeled by the generator simulation processing unit 244 described later. Here, the generator simulation data is data obtained by simulating a plurality of distributed power sources as a virtual generator, and is information indicating the characteristics as a generator in the VPP.

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

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

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

[0048] The prediction processing unit 242 (an example of the second prediction processing unit) predicts the power demand prediction value and the power supply available prediction value in the upper-level EMS layer based on the supply and demand actual result values for the control commands (second control commands) collected at one-minute intervals (intervals of the third unit period). The prediction processing unit 242 predicts, for example, the power demand prediction value and the power supply available prediction value in each VPP based on the supply and demand actual result values (control actual results) for the control commands (second control commands) sent to the local EMS 400 collected at one-minute intervals.

[0049] The prediction processing unit 242 performs demand prediction, renewable energy power generation prediction, and controllable amount prediction of the VPP based on, for example, the supply and demand actual result values collected by the actual 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 prediction values in the prediction value storage unit 234. In addition, the prediction processing unit 242 transmits the predicted prediction values to the BG supply and demand management device 10 in units of VPPs for cooperation.

[0050] The master management unit 243 manages the master information of various devices. The master management unit 243 periodically acquires the master information of various devices via the device - to - 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. That is, the master management unit 243 updates the master information stored in the master information storage unit 231 according to the addition, deletion, change, etc. of various devices in the VPP.

[0051] Based on the control performance (supply - demand actual value) stored in the actual value storage unit 232 and the master information stored in the master information storage unit 231, the generator simulation processing unit 244 models all distributed power sources so that the top - level EMS (BG supply - demand management device 10) can handle them as a virtual power plant.

[0052] The generator simulation processing unit 244 stores the generator simulation data generated by modeling in the generator simulation data storage unit 235. Also, the generator simulation processing unit 244 transmits the generator simulation data to the BG supply - demand management device 10 via the device - to - device transmission / reception unit 21 for cooperation.

[0053] The control plan unit 245 (an example of the second plan unit) generates an operation plan every 5 minutes based on the demand prediction value and the available supply prediction value predicted by the prediction processing unit 242. The control plan unit 245 acquires control commands at 5 - minute intervals from the VPP supply - demand management device 20 via the device - to - device transmission / reception unit 11. The control plan unit 245 generates an operation plan for each local EMS 400 every 5 minutes (5 - minute cycle) based on the prediction information (prediction information predicted by the prediction processing unit 242) stored in the prediction value storage unit 234, the master information stored in the master information storage unit 131, and the control commands at 5 - minute intervals acquired from the BG supply - demand management device 10.

[0054] Based on the operation plan, the control plan unit 245 generates control commands for each local EMS 400 at 1 - minute intervals. In addition, the control plan unit 245 causes the operation plan and control commands of each local EMS 400 to be stored in the control plan storage unit 236.

[0055] The control cooperation unit 246 (an example of the second control command unit) transmits and cooperates with control commands (second control commands) to each local EMS 400 at 1-minute intervals based on the operation plan generated by the control plan unit 245 every 5 minutes. Note that the control cooperation unit 246 transmits the control commands to each local EMS 400 via the DEP device 30. The control cooperation unit 246 transmits the control commands at 1-minute intervals (1-minute cycle) to the power control device group 4 and the DEP device 30 via the device-to-device transmission / reception unit 21.

[0056] In FIG. 1, a system composed of the VPP supply-demand management device 20 and the power control device group 4 is described as the upper-level EMS 200.

[0057] The DEP (Digital Energy Platform) device 30 (an example of a cooperation device) receives the supply-demand actual value (control actual value) for the control commands (third control commands) for controlling each device of the local EMS 400 from a plurality of local EMS devices 40, converts the received supply-demand actual value into a format corresponding to the VPP supply-demand management device 20, and transfers it to the VPP supply-demand management device 20 at 1-minute intervals for each local EMS device 40. In addition, the DEP device 30 transfers the control commands (second control commands) received from the VPP supply-demand management device 20 to the corresponding local EMS device 40 at 1-minute intervals. The DEP device 30 cooperates with other systems, 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-demand management device 20. The DEP device 30 includes a device-to-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, for example. The inter-device transmission / reception unit 31 transmits and receives information to and from the VPP supply / demand management device 20 and between the local EMS device 40 via a dedicated line or a network (e.g., the Internet), and cooperates with the VPP supply / 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 cooperation unit 322, and a local cooperation unit 323.

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

[0061] The higher-level cooperation unit 322 protocol-converts the control performance collected by the performance collection unit 321 from each local EMS 400 for the VPP supply / demand management device 20, and transmits it to the VPP supply / demand management device 20 as the control performance every minute for cooperation. The higher-level cooperation unit 322 transmits the control performance every minute to the VPP supply / demand management device 20 via the inter-device transmission / reception unit 31.

[0062] The local cooperation unit 323 transmits the control command received from the VPP supply / demand management device 20 to each local EMS 400 (local EMS device 40) every minute for cooperation. The local cooperation 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. In addition, the local cooperation unit 323 receives master information from the VPP supply / demand management device 20 at any time and transmits it to each local EMS 400 (local EMS device 40). Note that the DEP device 30 may perform protocol conversion either by itself or in combination with the distributed power monitoring and control platform (local EMS 400) or the VPP supply and demand management device 20 without performing the above-described protocol conversion.

[0063] The local EMS device 40 (an example of the third management device) is a management device that manages devices including distributed power sources in the local EMS hierarchy. It transmits a control command (the third control command) to devices including distributed power sources at an interval shorter than one minute (the interval of the fourth unit period, for example, from 1 second to 20 seconds) so as to be able to achieve a control command (the second control command) from the VPP supply and demand management device 20 at one-minute intervals.

[0064] The local EMS device 40 also includes a performance collection unit 421, a control plan unit 422, and a control cooperation unit 423. In FIG. 1, a system composed of the local EMS device 40 and the distributed power source group 5 is described as the local EMS 400.

[0065] The device-to-device transmission / reception unit 41 is a functional unit realized by a communication device such as a network adapter, for example. The device-to-device transmission / reception unit 41 transmits and receives information to and from the DEP device 30 via a dedicated line or a network (for example, the Internet) to cooperate 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 causing a processor including a CPU to execute a program stored in a storage unit (not shown), for example. 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 plan unit 422, and a control cooperation unit 423.

[0067] The performance collection unit 421 collects, for example, control performance (power reception point actual power (forward or reverse power flow), power generation actual power, chargeable amount (kWh), dischargeable amount (kWh), etc.), device status (e.g., operation status, failure status, and connection status) information, and mask information (rated output, capacity for power outage, etc.) from each device of each local EMS 400. If the mask information of each device cannot be obtained, the performance collection unit 421 receives cooperation from the upper level (VPP supply and demand management device 20). Also, the performance collection unit 421 transmits the collected performance values to the VPP supply and demand management device 20 via the DEP device 30 at 1-minute intervals.

[0068] Based on the control performance values collected by the performance collection unit 421, the master information, and the control commands at 1-minute intervals obtained from the VPP supply and demand management device 20, the control plan unit 422 (an example of the third planning unit) generates an operation plan for each device at 1-minute intervals, and based on the operation plan, generates control commands for each device at intervals of several seconds to 20 seconds.

[0069] The control cooperation unit 423 (an example of the third control command unit) transmits and cooperates with control commands (third control commands) to each device of each local EMS 400 at intervals of several seconds to 20 seconds generated by the control plan unit 422. Note that the control cooperation unit 246 transmits control commands to each local EMS 400 via the DEP device 30. The control cooperation unit 246 transmits control commands at 1-minute intervals (1-minute cycle) to the power control device group 4 and the DEP device 30 via the device-to-device transmission and reception unit 21.

[0070] FIG. 2 is a block diagram showing an example of the local EMS 400 in the present 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 5b, and an EV (Electric Vehicle) 5c (electric vehicle).

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

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

[0073] As shown in FIG. 3, the power supply and demand management system 1 includes a BG power supply and demand management device 10 in the topmost EMS layer, a VPP power supply and demand management device 20 in the upper EMS layer, and a DEP device 30 / local EMS device 40 in the local EMS layer. Each of the management devices of the BG power supply and demand management device 10, the VPP power supply and demand management device 20, and the DEP device 30 / local EMS device 40 in the three layers executes a process that goes through cycles of "measurement", "prediction", "planning", and "control".

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

[0075] Also, in "control", the control cooperation unit 145 transmits a control command to the generators (including VPP) in 5-minute units in order to achieve simultaneous equal quantity in 30 minutes (match the power demand and supply) (process S12). Also, in "measurement", the performance collection unit 141 collects the 5-minute performance of the generators (including VPP).

[0076] Also, as shown in process S13, the VPP power supply and demand management device 20 executes a process of cycling through the above cycle every 5 minutes. In the VPP power supply and demand management device 20, in "prediction", the prediction processing unit 242 predicts renewable energy and demand for each individual consumer, and predicts the load for each power receiving point.

[0077] Also, in "planning", the control planning unit 245 calculates the adjustable amount and adjustment cost of each consumer based on the prediction results, and formulates a 5-minute plan that minimizes the cost according to the control command from the BG (process S13). Note that the prediction processing unit 242 transmits the predicted value to the BG power supply and demand management device 10 and cooperates with it (process S14).

[0078] Also, in "control", the control cooperation unit 246 transmits a control command to each consumer every 1 minute to achieve the 5-minute control command from the BG (process S15). Also, in "measurement", the performance collection unit 141 collects the 1-minute performance of each consumer.

[0079] Also, the DEP device 30 / local EMS device 40 executes a process of cycling through the above cycle every 1 minute. In the DEP device 30 / local EMS device 40, in "planning", the control planning unit 422 formulates a distribution plan for the power receiving point control command to the in-house equipment of the consumer.

[0080] Also, 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 distributed plan (process S16). Also, in "measurement", the performance collection unit 421 collects the 20-second performance of each device (second control performance in the case of autonomous operation). Note that the performance collection unit 421 transmits the collected performance to the VPP power supply and demand management device 20 and cooperates with it (process S17).

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

[0082] As shown in FIG. 4, the performance collection unit 141 of the BG supply / demand management device 10 acquires the control performance of each generator and VPP at a 5-minute interval (step S101). The performance collection unit 141 collects the control performance of each generator and VPP at a 5-minute interval via the device-to-device transmission / reception unit 11, and associates, for example, the identification information of each generator and VPP, the date and time information of the control, and the control performance value, and stores them in the performance value storage unit 132.

[0083] Next, the prediction processing unit 142 of the BG supply / demand management device 10 executes demand prediction, renewable energy power generation prediction, and controllable amount prediction based on the acquired performance values, master information, and weather information (step S102). The prediction processing unit 142 performs, for example, demand prediction, renewable energy power generation prediction, and controllable amount prediction outside the upper-level EMS management (outside the management of the VPP supply / demand management device 20) based on the supply / demand performance values collected by the performance 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 prediction values in the prediction value storage unit 134.

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

[0085] Next, the power generation planning unit 144 generates a charge / discharge plan for each generator and VPP every 30 minutes based on the predicted values, master information, and VPP power generation simulation data (step S104). The power generation planning unit 144 generates a charge / discharge plan for each 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 obtained from the VPP supply / demand management device 20), the master information stored in the master information storage unit 131, and the generator simulation data. The power generation planning unit 144 stores the generated charge / discharge plan every 30 minutes in the plan information storage unit 135.

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

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

[0088] Next, the control cooperation unit 145 transmits the control command every 5 minutes to the VPP supply / demand management device 20 in units of VPP for cooperation (step S107). The control cooperation unit 145 transmits the control command every 5 minutes to the VPP supply / demand management device 20 via the device-to-device transmission / reception unit 11. After the process of step S107, the control cooperation unit 145 returns the process to step S101 and repeats the processes from step S101 to step S107 in a 30-minute cycle.

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

[0090] As shown in FIG. 5, the performance collection unit 241 of the VPP power supply and demand management device 20 acquires the performance values of each local EMS device 40 via the DEP device 30 at one-minute intervals (step S201). The performance collection unit 241 collects the control performance of each local EMS device 40 at one-minute intervals via the device-to-device transmission / reception unit 21, and associates, for example, the identification information of each local EMS 400, the date and time information of the control, and the control performance value, and stores them in the performance value storage unit 232.

[0091] Next, the prediction processing unit 242 of the VPP power supply and demand management device 20 executes demand prediction, renewable energy power generation prediction, and controllable amount prediction based on the acquired performance values, 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 power supply and demand performance values collected by the performance 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 prediction values in the prediction value storage unit 234.

[0092] Next, the generator simulation processing unit 244 of the VPP power supply and demand management device 20 bundles distributed power sources based on the acquired performance values and master information to generate VPP power generation simulation data (generator simulation data), and transmits it to the BG power supply and demand management device 10 for cooperation (step S203). The generator simulation processing unit 244 transmits the VPP power generation simulation data (generator simulation data) to the BG power supply and demand management device 10 via the device-to-device transmission / 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 power supply and demand management device 20 transmits the prediction values to the BG power supply and demand management device 10 in VPP units for cooperation (step S204). The prediction processing unit 242 transmits the prediction values to the BG power supply and demand management device 10 via the device-to-device transmission / reception unit 21.

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

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

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

[0097] Next, the control cooperation unit 246 transmits and cooperates with the BG supply-demand management device 10 on the control performance of each VPP for the 5-minute cycle control command value from the BG supply-demand management device 10 (step S208). The control cooperation unit 246 transmits the control performance of each VPP to the BG supply-demand management device 10 via the device-to-device transmission / reception unit 21. After the process of step S208, the control cooperation unit 246 returns the process to step S201 and repeats the processes from step S201 to step S208 at a 5-minute cycle.

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

[0099] As shown in FIG. 6, first, the actual value collection unit 241 of the VPP supply-demand management device 20 collects the actual values of each local EMS device 40 via the DEP device 30 at a 1-minute cycle (step S211).

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

[0101] Next, the control planning unit 245 determines whether the shortage amount exceeds a preset threshold value (step S213). When the shortage amount exceeds the preset threshold value (step S211: YES), the control planning unit 245 proceeds with the process to step S214. Also, when the shortage amount does not exceed the preset threshold value (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 poor reliability and outputs a control command for redistribution (step S215). The control planning unit 245 generates a control command for redistribution, and the control cooperation unit 246 transmits the control command for redistribution to the local EMS device 40 via the DEP device 30 through the device-to-device transmission / reception unit 21. After the process of step S215, the control cooperation unit 246 ends the process.

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

[0105] As shown in FIG. 7, the actual performance collection unit 321 of the DEP device 30 accepts the actual values from each local EMS device 40 at any time (step S301). The actual performance collection unit 321 collects the control actual performance of each local EMS 400 via the device-to-device transmission / reception unit 31.

[0106] Next, the upper-level cooperation unit 322 of the DEP device 30 transmits the received performance value to the VPP supply-demand management device 20 for cooperation at a one-minute cycle (step S302). The upper-level cooperation unit 322 protocol-converts the collected control performance for the VPP supply-demand management device 20 and transmits it to the VPP supply-demand management device 20 as the control performance every minute via the device-to-device transmission / reception unit 31.

[0107] Next, the local cooperation unit 323 of the DEP device 30 receives control commands from the VPP supply-demand management device 20 at any time (step S303).

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

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

[0110] Next, the local cooperation unit 323 transmits the received master information to the local EMS device for cooperation at a one-minute cycle (step S306). The local cooperation unit 323 transmits the master information to the local EMS device 40 via the device-to-device transmission / reception unit 31. After the process of step S306, the local cooperation unit 323 returns the process to step S301 and repeats the processes from step S301 to step S306.

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

[0112] As shown in Fig. 8, the performance collection unit 421 of the local EMS device 40 collects the performance values, device states, and master information of each device at intervals of several seconds to 20 seconds (step S401). The performance collection unit 421 collects the performance values, device states, and master information of each device from each device of the distributed power supply group 5 via the inter-device transmission / reception unit 41, for example.

[0113] Next, the control plan unit 422 of the local EMS device 40 receives the command value (target value of the power reception point) from the VPP power supply / demand management device 20 via the DEP device 30 at a cycle of 1 minute (step S402). The control plan unit 422 receives the command value (target value of the power reception point) from the VPP power supply / demand management device 20 via the inter-device transmission / reception unit 41.

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

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

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

[0117] Next, the control cooperation unit 423 transmits the collected performance values to the VPP power supply / demand management device 20 at a cycle of 1 minute for cooperation (step S406). The control cooperation unit 423 transmits the performance values collected by the performance collection unit 421 to the VPP power supply / demand management device 20 via the DEP device 30 at a cycle of 1 minute via the inter-device transmission / reception unit 41. After the process of step S406, the control cooperation unit 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 the present embodiment is a power supply and demand management system that manages the power supply and demand of BG (balance group) by 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 power supply and demand in the top EMS layer (first layer), which is the top layer of the BG. The VPP supply and demand management device 20 manages the power supply and demand in the upper EMS layer (second layer), which is a layer lower than the top EMS layer of the BG supply and demand management device 10. Further, based on the supply and demand actual value obtained 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 an interval of 5 minutes (interval of the second unit period), which is shorter than 30 minutes, so as to match the power demand and supply in the BG at a predetermined 30 minutes (first unit period). The VPP supply and demand management device 20 transmits a second control command to the local EMS layer (third layer), which is a layer lower than the upper EMS layer, at an interval of 1 minute (third unit period), which is shorter than 5 minutes, so as to achieve the first control command at an interval of 5 minutes.

[0119] Thereby, the power supply and demand management system 1 according to the present embodiment manages by a plurality of layers and controls in a shorter unit period as it goes to the lower layer. Therefore, the control to match the power demand and supply in the BG using a variety of distributed power sources can be performed efficiently and appropriately. Therefore, the power supply and demand management system 1 according to the present embodiment enables a retail electricity business operator to handle a variety of distributed power sources and to monitor and control from the BG to individual distributed power sources in a lump. That is, the power supply and demand management system 1 according to the present embodiment can efficiently manage the power supply and demand using distributed power sources.

[0120] In addition, the power supply and demand management system 1 according to this embodiment can manage a large number of distributed power sources of consumers quickly, automatically, and at low cost by cooperating with the VPP supply and demand management device 20 and the BG supply and demand management device 10. Also, the power supply and demand management system 1 according to this embodiment can achieve high-speed, automatic, and low-cost control by hierarchical control targets / time granularity both during interconnected operation and independent operation.

[0121] Further, 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 cooperation unit 145 (first control command unit). The prediction processing unit 142 predicts the power demand prediction value and the supply available prediction value in the BG based on the supply and demand actual value for the first control command collected at 5-minute intervals. The power generation planning unit 144 generates an operation plan every 30 minutes based on the demand prediction value and the supply available prediction value predicted by the prediction processing unit 142. The control cooperation unit 145 transmits the first control command at 5-minute intervals based on the operation plan every 30 minutes 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 cooperation unit 246 (second control command unit). The prediction processing unit 242 predicts the power demand prediction value and the supply available prediction value in the upper EMS layer based on the supply and demand actual value for the second control command collected at 1-minute intervals (interval of the third unit period). The control planning unit 245 generates an operation plan every 5 minutes based on the demand prediction value and the supply available prediction value predicted by the prediction processing unit 242. The control cooperation unit 246 transmits the second control command at 1-minute intervals based on the operation plan every 5 minutes generated by the control planning unit 245.

[0122] As a result, in the power supply and demand management system 1 according to the present embodiment, in each of the BG supply and demand management device 10 and the VPP supply and demand management device 20, a cycle process of prediction processing of demand prediction values and supply available prediction values, formulation of an operation plan, transmission of a control command based on the operation plan, and collection processing of actual values is executed, and the cycle process of the VPP supply and demand management device 20 is performed at a shorter cycle than that of the BG supply and demand management device 10. Therefore, the power supply and demand management system 1 according to the present embodiment can realize stable and efficient management of power supply and demand by using the BG supply and demand management device 10 and the VPP supply and demand management device 20.

[0123] Further, in the present embodiment, the generators managed by the VPP supply and demand management device 20 include a VPP (virtual power plant) that operates a plurality of distributed power sources as a virtual power plant. The power generation planning unit 144 generates an operation plan every 30 minutes based on the demand prediction value and the supply available prediction value and generator simulation data indicating the characteristics of the generators in the VPP. The control cooperation unit 145 transmits a first control command for controlling the generators including the VPP at 5-minute intervals based on the operation plan every 30 minutes.

[0124] As a result, the power supply and demand management system 1 according to the present embodiment can appropriately and efficiently manage the BG including the VPP.

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

[0126] As a result, since the power supply and demand management system 1 according to the present embodiment further controls the lower layer (local EMS layer) at a shorter second interval (interval of the fourth unit period), the management of the BG can be performed more appropriately and efficiently.

[0127] In addition, the power supply and demand management system 1 according to this embodiment includes a DEP device 30 (cooperating device). The DEP device 30 receives supply and demand performance values for the third control command from a plurality of local EMS devices 40, converts the received supply and demand performance values into a format corresponding to 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. At the same time, the second control command received from the VPP supply and demand management device 20 is transferred to the corresponding local EMS device 40 at one-minute intervals.

[0128] Thereby, the power supply and demand management system 1 according to this embodiment includes the DEP device 30 (cooperating device), so that the VPP supply and demand management device 20 can appropriately collect control results corresponding to local EMSs 400 with various specifications. Therefore, in the power supply and demand management system 1 according to this embodiment, highly accurate load prediction, power generation prediction, and DR capacity prediction results can be provided to the BG quickly and automatically.

[0129] In addition, the power supply and demand management system 1 according to this embodiment is a power supply and demand management system that manages the power supply and demand of a BG by a plurality of 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 layer of the BG and manages the power supply and demand in a VPP that operates a plurality of distributed power sources as a virtual power plant. The BG supply and demand management device 10 cooperates with the VPP supply and demand management device 20, and according to the demand prediction value and supply availability prediction value based on the supply and demand performance values obtained from the VPP supply and demand management device 20, and the generator simulation data indicating the characteristics of the generator in the VPP, in a predetermined unit period, a control command is sent to the VPP supply and demand management device 20 so that the power demand and supply in the BG match.

[0130] As a result, in the power supply and demand management system 1 according to the present embodiment, the BG supply and demand management device 10 and the VPP supply and demand management device 20 cooperate to provide highly accurate load prediction, power generation prediction, and DR available amount prediction results to the BG quickly and automatically, and can efficiently manage the power supply and demand using distributed power sources.

[0131] Further, the power supply and demand management method according to the present embodiment is a power supply and demand management method for managing the power supply and demand of the BG of the power supply and demand management system 1 including a BG supply and demand management device 10 that manages the power supply and demand in the top EMS layer, which is the top layer of the BG by a plurality of distributed power sources and generators, and a VPP supply and demand management device 20 that manages the power supply and demand in the upper EMS layer, which is a layer lower than the top EMS layer of the BG supply and demand management device 10, and includes a first step and a second step. In the first step, based on the supply and demand actual value acquired by the BG supply and demand management device 10 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, which is shorter than 30 minutes, so as to match the power demand and supply in the BG within a predetermined 30 minutes. In the second step, the VPP supply and demand management device 20 transmits a second control command to the local EMS layer, which is a layer lower than the upper EMS layer, at 1-minute intervals, which is shorter than 5 minutes, so as to achieve the first control command at 5-minute intervals.

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

[0133] In addition, the power supply and demand management method according to this embodiment is a power supply and demand management method for managing the power supply and demand of the entire BG by a plurality of distributed power sources and a generator, including a BG power supply and demand management device 10, and a VPP power supply and demand management device 20 that manages the power supply and demand in a VPP that is a lower layer of the BG and operates a plurality of distributed power sources as a virtual power plant. The method includes a first step. In the first step, the BG power supply and demand management device 10 cooperates with the VPP power supply and demand management device 20, and according to the demand prediction value and the supply prediction value based on the supply and demand actual performance value obtained from the VPP power supply and demand management device 20, and the power generation simulation data indicating the characteristics of the generator in the VPP, at a predetermined unit period (for example, 30-minute intervals), a control command is transmitted to the VPP power supply and demand management device 20 so that the power demand and supply in the BG match.

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

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

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

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

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

[0139] Note that the present disclosure is not limited to the above-described embodiments, and can be changed without departing from the gist of the present disclosure. For example, in the above-described embodiment, an example in which each of the BG supply / demand management device 10, the VPP supply / demand management device 20, the DEP device 30, the local EMS device 40, and the ICE terminal 40a is realized as one device has been described, but the present disclosure is not limited thereto, and it may be realized by a plurality of devices.

[0140] Also, in the above-described embodiment, for convenience of explanation, an example in which the power supply / demand management system 1 includes one VPP supply / demand management device 20 and one local EMS device 40 each has been described, but the present disclosure is not limited thereto, and it may be configured to include a plurality of VPP supply / demand management devices 20 and a plurality of local EMS devices 40.

[0141] Also, in the above-described embodiment, an example in which the external server 2 is one server device has been described, but the present disclosure is not limited thereto, and server devices (a plurality of server devices) may be provided for each service provided.

[0142] Each component included in the above-described power supply and demand management system 1 has a computer system inside. Then, a program for realizing the functions of each component included in the above-described power supply and demand management system 1 is recorded on a computer-readable recording medium, and the program recorded on this recording medium is read into the computer system and executed, so that the processing in each component included in the above-described power supply and demand management system 1 may be performed. Here, "reading the program recorded on the recording medium into the computer system and executing it" includes installing the program in the computer system. The "computer system" as used herein shall include hardware such as an OS and peripheral devices.

[0143] In addition, the "computer system" may include a plurality of computer devices connected via a network including communication lines such as the Internet, WAN, LAN, and dedicated lines. Also, the "computer-readable recording medium" refers to a portable medium such as a flexible disk, magneto-optical disk, ROM, CD-ROM, or a storage device such as a hard disk built into the computer system. Thus, the recording medium storing the program may be a non-transitory recording medium such as a CD-ROM.

[0144] In addition, the recording medium includes an internal or external recording medium that is accessible from a distribution server for distributing the program. Note that the program may be divided into a plurality of parts, downloaded at different timings, and then combined by each component included in the power supply and demand management system 1, or the distribution servers that distribute each of the divided programs may be different. Further, the "computer-readable recording medium" includes a volatile memory (RAM) inside a computer system that becomes a server or a client when a program is transmitted via a network, which holds the program for a certain period of time. Also, the above program may be for realizing a part of the functions described above. Furthermore, it may be a so-called difference file (difference program) that can realize the above functions in combination with a program already recorded in the computer system.

Explanation of Signs

[0145] 1... Power supply and demand management system, 2... External server, 3, 4... Power control device groups, 5... Distributed power source group, 5a... Storage battery, 5b... Solar power generation, 5c... EV, 10... BG power supply and demand management device, 11, 21, 31, 41... Device-to-device transmission / reception units, 12, 22... NW communication units, 13, 23... Device storage units, 14, 24, 32, 42... Device control units, 20... VPP power supply and demand management device, 30... DEP device, 40... Local EMS device, 40a... ICE terminal, 131, 231... Master information storage units, 132, 232... Performance value storage units, 133, 233... Weather information storage units, 134, 234... Predicted value storage units, 135... Planning information storage unit, 141, 241, 321, 421... Performance collection units, 142, 242... Prediction processing units, 143, 243... Master management units, 144... Power generation planning unit, 145, 246, 423... Control cooperation units, 235... Generator simulation data storage unit, 236... Control plan storage unit, 244... Generator simulation processing unit, 245, 422... Control plan units, 322... Upper-level cooperation unit, 323... Local cooperation unit, 200... Upper-level EMS, 400... Local EMS, NW1... Network

Claims

1. An electric power supply and demand management system that manages electric power supply and demand of a balance group of a plurality of distributed power sources and generators, A first management device that manages the entire power supply and demand of the balance group; a second management device which is a lower hierarchical level of the balance group and manages power supply and demand in a virtual power plant which operates a plurality of distributed power sources as a virtual power plant; Equipped with The first management device is 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 according to a demand forecast value and a supply availability forecast value based on a supply and demand actual value acquired from the second management device and generator simulation data indicating characteristics as 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 an entire 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 electric power supply and demand in 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 to transmit 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 according to a demand forecast value and a supply availability forecast value based on a supply and demand actual value acquired from the second management device and generator simulation data indicating characteristics as a generator in the virtual power plant. Electricity supply and demand management methods.

Images