Power management system, power management device, power management method, and program

Abstract

By coordinating two independent systems targeting different electricity markets, the decline in the accuracy of power planning is mitigated. [Solution] The power management system comprises a first power management device that creates a first power plan, which is a plan of the amount of electricity for one or more distributed power sources and targets a first power market, and a second power management device that creates a second power plan, which is a plan of the amount of electricity for the same distributed power sources and targets a second power market different from the first power market. The first power management device predicts the amount of electricity for the distributed power sources in a predetermined period in the future and transmits first data based on the prediction to the second power management device. The second power management device predicts the amount of electricity for the distributed power sources in the predetermined period and generates second data based on the prediction. The second power management device selects either the first data or the second data based on predetermined conditions and creates a first power plan based on the selected data, which is the first selected data.

Description

Technical Field

[0001] The present disclosure relates to a power management system, a power management apparatus, a power management method, and a program.

Background Art

[0002] Conventionally, wholesale electricity markets where electricity is traded for the purpose of efficient power supply and price stabilization are known. Power generation companies that own power generation facilities predict the power generation amount of their power generation facilities in order to trade electricity for the next day in the wholesale electricity market. A power generation company creates a power generation sales plan based on the predicted power generation amount, and sells electricity based on the power generation sales plan. In such transactions in the wholesale electricity market, an apparatus that uses a computer to predict power supply and demand and the power generation amount of power generation facilities, creates a power generation sales plan, and supports power control of power generation facilities and power storage facilities based on the created power generation sales plan (hereinafter referred to as a "supply-demand management apparatus") is used.

[0003] On the other hand, as a market for trading electricity, a supply-demand adjustment market different from the wholesale electricity market is known. Roles are divided between resource aggregators (RA) and aggregation coordinators (AC), and ACs primarily conduct transactions with the supply-demand adjustment market. An RA is an adjustment business operator that concludes a VPP (Virtual Power Plant) service contract with consumers or power generation companies and controls the amount of power of distributed power sources (such as power generation facilities and / or power storage facilities). An AC is an adjustment business operator that aggregates the amount of power controlled by RAs and conducts direct transactions with the supply-demand adjustment market. The adjustment business operator predicts the amount of power, creates a power adjustment plan, and sells adjustment capacity based on the power adjustment plan. Adjustment capacity refers to the function of controlling the increase or decrease in the amount of power of distributed power sources so as to maintain the power supply-demand balance. Adjustment capacity adjusts the amount of power by adjusting the output of power generation facilities, adjusting the charging and discharging of power storage facilities, or suppressing power consumption of power demand facilities. In such transactions in the supply-demand adjustment market, an apparatus that uses a computer to predict power supply and demand and the power generation amount of power generation facilities contracted by adjustment business operators, creates a power adjustment plan, and supports power control of distributed power sources based on the created power adjustment plan (hereinafter referred to as a "supply-demand adjustment apparatus") is used (see Patent Document 1). [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2021-174344 [Overview of the project] [Problems that the invention aims to solve]

[0005] Because supply and demand management devices and supply and demand adjustment devices target different electricity markets, they are operated as independent devices. Therefore, since the supply and demand management devices and supply and demand adjustment devices create power plans based on independent decision-making processes for the same distributed power source, there is a risk of power control conflict between the two devices. In this case, errors may occur between the power control based on the power plans of the supply and demand management devices and supply and demand adjustment devices and the actual power control, potentially preventing electricity trading in each electricity market from proceeding as planned. This results in a problem of reduced accuracy in the power plans of both the supply and demand management devices and supply and demand adjustment devices.

[0006] This disclosure provides a power management system, power management device, power management method, and program that can suppress the decline in accuracy of power planning by coordinating two independent systems targeting different power markets.

[0007] The power management system according to the first embodiment comprises a first power management device that creates a first power plan, which is a plan for the amount of electricity for one or more distributed power sources and is targeted at a first power market, and a second power management device that creates a second power plan, which is a plan for the amount of electricity for one or more distributed power sources and is targeted at a second power market different from the first power market. The first power management device performs a first power forecast to predict the amount of electricity for one or more distributed power sources over a predetermined period in the future and transmits first data based on the first power forecast to the second power management device. The second power management device performs a second power forecast to predict the amount of electricity for one or more distributed power sources over the predetermined period and generates second data based on the second power forecast. The second power management device selects either the first data or the second data based on predetermined conditions and creates a second power plan based on the selected data, which is the first selected data.

[0008] The power management device according to the second embodiment is a power management device that creates a first power plan for a first power market, which is a plan for the amount of electricity for one or more distributed power sources, and comprises a control unit and a communication unit. The control unit performs a first power forecast to predict the amount of electricity for one or more distributed power sources over a predetermined period in the future, and generates first data based on the first power forecast. The communication unit receives second data from a second power management device that generates second data to create a second power plan for a second power market different from the first power market. The control unit selects the first data or the second data based on predetermined conditions, and creates the first power plan based on the selected data.

[0009] The third aspect of the power management method is a power management method performed by a first power management device that creates a first power plan, which is a plan for the amount of electricity for one or more distributed power sources and is aimed at a first power market, and a second power management device that creates a second power plan, which is a plan for the amount of electricity for one or more distributed power sources and is aimed at a second power market different from the first power market. The power management method includes the steps of the first power management device performing a first power forecast, which predicts the amount of electricity for one or more distributed power sources in a predetermined future period, and the first power management device transmitting first data based on the first power forecast to the second power management device. The power management method further includes the steps of the second power management device performing a second power forecast, which predicts the amount of electricity for one or more distributed power sources in the predetermined period, and the second power management device generating second data based on the second power forecast. The power management method further includes the steps of the second power management device selecting the first data or the second data based on predetermined conditions, and creating a second power plan based on the selected data.

[0010] The computer program according to the fourth embodiment is a computer program executed by a power management device that creates a first power plan for a first power market, which is a plan for the amount of electricity for one or more distributed power sources. The computer program causes the computer to perform the following steps: perform a first power forecast to predict the amount of electricity for one or more distributed power sources over a predetermined period in the future; generate first data based on the first power forecast; receive second data from a second power management device that generates second data to create a second power plan for a second power market different from the first power market; select at least one of the first data or the second data based on predetermined conditions; and create the first power plan based on the selected data. [Effects of the Invention]

[0011] This disclosure provides a power management system, power management device, power management method, and program that can suppress the decline in accuracy of power planning by coordinating two independent systems targeting different power markets. [Brief explanation of the drawing]

[0012] [Figure 1] This figure shows an example of the overall configuration including the power management system according to the embodiment. [Figure 2] This figure shows an example configuration of a supply and demand management device according to an embodiment. [Figure 3] This figure shows an example of the configuration of a supply and demand adjustment device according to the embodiment. [Figure 4] This figure shows examples of the first and second data generated by the power management system according to the embodiment. [Figure 5] This figure shows an example of the operation of a power management system according to the present invention. [Figure 6] This figure shows an example of the operation of a power management system according to a modified embodiment. [Modes for carrying out the invention]

[0013] The embodiments will be described below with reference to the drawings. In the following drawings, identical or similar parts are denoted by the same or similar reference numerals.

[0014] (1) Overall structure Figure 1 shows an example of the overall system configuration including the power management system 30. In Figure 1, communication lines are shown as dotted lines between blocks, and power lines are shown as solid lines between blocks.

[0015] The system shown in Figure 1 comprises multiple facilities 10 and a power management system 30.

[0016] Each facility 10 may be a residence, shop, or office. Each facility 10 may be a multi-unit dwelling including multiple residences, or a mixed-use facility including at least one of residences, shops, and offices.

[0017] Each facility 10 is electrically connected to the power grid 110a. Each facility 10 may be supplied with power from the power grid 110a, and such power is also referred to as forward-flow power. Each facility 10 may supply power to the power grid 110a, and such power is also referred to as reverse-flow power.

[0018] Each facility 10 includes a distributed power source 100, a load device 130, and an EMS (Energy Management System) 200. Each facility 10 may include a plurality of distributed power sources 100. The distributed power source 100 is electrically connected to the load device 130 via a power line 101a in the facility 10. The distributed power source 100 is communicatively connected to the EMS 200 via a communication line 201a.

[0019] The distributed power source 100 is electrically connected to the load device 130 and the power grid 110a via the power line 101a in the facility 10. The distributed power source 100 includes power generation equipment and / or power storage equipment. Specifically, the distributed power source 100 may include only power generation equipment, only power storage equipment, or both power generation equipment and power storage equipment. Note that the amount of power related to the distributed power source 100 includes the power generation amount of the power generation equipment and / or the discharge amount of the power storage equipment.

[0020] The power generation equipment may be, for example, a solar power facility. The solar power facility is a distributed power source that generates power in accordance with light such as sunlight. For example, the solar power facility is constituted by a PCS (Power Conditioning System) and a solar panel. The PCS converts DC power from the solar panel into AC power, and supplies the AC power via the power line 101a. The PCS also includes a power meter (not shown) that measures the power generation amount of the solar panel.

[0021] The power generation equipment may be fuel cell equipment. Fuel cell equipment is a distributed power source that generates power using fuel. For example, fuel cell equipment is constituted by a PCS and fuel cells. The PCS includes a power meter (not shown) that measures the power generation amount of the fuel cell. The fuel cell equipment may be a solid oxide fuel cell (SOFC; Solid Oxide Fuel Cell), a polymer electrolyte fuel cell (PEFC; Polymer Electrolyte Fuel Cell), a phosphoric acid fuel cell (PAFC; Phosphoric Acid Fuel Cell), or a molten carbonate fuel cell (MCFC; Molten Carbonate Fuel Cell).

[0022] The power generation equipment may be wind power generation equipment, geothermal power generation equipment, fuel cell and / or biomass power generation equipment, or the like. The power generation equipment 110 may also include a diesel generator.

[0023] The power storage equipment is a distributed power source that charges and discharges power from the power generation equipment and / or the power grid 110a. The power storage equipment may include one storage battery, or may include a plurality of storage batteries. The power storage equipment includes a PCS. The PCS converts direct current power into alternating current power, and supplies the alternating current power via the power line 101a. The PCS also converts alternating current power into direct current power and outputs the direct current power to the storage battery when charging the power storage equipment. The PCS includes a power meter that respectively measures the discharge amount of the power storage equipment.

[0024] The load device 130 is a device that consumes power. For example, the load device 130 may include an air conditioner, a heat pump water heater, a lighting device, or the like.

[0025] The EMS200 manages the power supply for facility 10. The EMS200 may also control the distributed power supplies 100 and load equipment 130. The EMS200 is communicatively connected to the power management system 30 via a communication network 20, and receives control commands from the power management system 30 and transmits power consumption data (described later) to the power management system 30. The control commands may be instructions or commands to control the distributed power supplies 100. The communication network 20 includes at least one of a LAN (Local Area Network), a WAN (Wide Area Network), and the Internet.

[0026] (2) Configuration of the power management system As shown in Figure 1, the power management system 30 includes a supply and demand management device 310 (an example of a first power management device) and a supply and demand adjustment device 320 (an example of a second power management device). The supply and demand management device 310 and the supply and demand adjustment device 320 of the power management system 30 are each connected to the facility 10 via a communication network 20 so as to be able to communicate with it. In addition, the supply and demand management device 310 and the supply and demand adjustment device 320 are connected to each other via the communication network 20 so as to be able to communicate with each other.

[0027] The supply and demand management device 310 consists of one or more computers. The supply and demand management device 310 is communicatively connected to the wholesale electricity market 400 system (not shown) via a communication network 20. The supply and demand management device 310 forecasts the demand and supply of electricity for trading in the wholesale electricity market 400, forecasts the amount of electricity generated by power generation facilities, and creates a power generation sales plan. The supply and demand management device 310 transmits the created power generation sales plan to a designated organization (for example, the Organization for Cross-regional Coordination of Transmission Operators (OCCTO)). The business operator (power generation business operator) to which the supply and demand management device 310 belongs sells electricity in the wholesale electricity market 400 based on the power generation sales plan.

[0028] The wholesale electricity market 400 is a market where electricity that has actually been generated is traded. The wholesale electricity market 400 may be a market where electricity is traded for a predetermined period (for example, one day from 0:00 to 24:00 the following day). The wholesale electricity market 400 may be a market where electricity rates are set for each unit period (for example, 30 minutes) that makes up the predetermined period. The wholesale electricity market 400 may include a spot market where trading closes the day before the predetermined period. The wholesale electricity market 400 may include an early market where trading closes immediately before (for example, one hour before) a unit period that makes up the predetermined period.

[0029] The supply and demand adjustment device 320 consists of one or more computers. The supply and demand management device 310 is communicatively connected to the supply and demand adjustment market 500 system (not shown) via the communication network 20. The supply and demand adjustment device 320 forecasts the demand and supply of electricity for transactions in the supply and demand adjustment market 500, as well as the amount of electricity generated by the power generation facilities contracted by the adjustment operator, and creates a power adjustment plan. The supply and demand adjustment device 320 transmits the created power adjustment plan to a designated organization (e.g., the AC system).

[0030] The supply and demand adjustment device 320 is used, for example, by AC (Aggregation Coordinator) or RA (Resource Aggregator) operators to trade adjustment power in the supply and demand adjustment market 500. Adjustment power refers to the function of controlling the increase or decrease of the amount of electricity from distributed power sources 100 in order to maintain the balance of electricity supply and demand. Adjustment power adjusts the amount of electricity by adjusting the output of power generation equipment, adjusting the charging and discharging of energy storage equipment, or suppressing the amount of electricity consumed by facilities 10. The operator to which the supply and demand adjustment device 320 belongs (adjustment operator) sells adjustment power based on the power adjustment plan to transmission and distribution operators that require adjustment power in the supply and demand adjustment market 500.

[0031] The Supply and Demand Adjustment Market 500 is an electricity market where ACs (electricity exchange operators) and power generators (electricity generators) bid on the necessary adjustment capacity offered by transmission and distribution companies (buyers), and trading of adjustment capacity takes place.

[0032] The supply and demand management device 310 creates a power generation and sales plan (an example of a first power plan) for the wholesale power market 400 (an example of a first power market), which is a plan for the amount of electricity for one or more distributed power sources 100. The supply and demand adjustment device 320 creates a power adjustment plan (an example of a second power plan) for the supply and demand adjustment market 500 (an example of a second power market), which is a plan for the amount of electricity for the distributed power sources 100.

[0033] The supply and demand management device 310 and the supply and demand adjustment device 320 operate as independent systems because they target different electricity markets. Therefore, since the supply and demand management device 310 and the supply and demand adjustment device 320 create power plans based on independent decision-making processes for the same distributed power source 100, there is a risk of power control conflict. In this case, errors may occur between the power control based on the respective power plans of the supply and demand management device 310 and the supply and demand adjustment device 320 and the actual power control, potentially preventing electricity trading in each market from proceeding as planned. This results in a problem of reduced accuracy in the power plans of both the supply and demand management device 310 and the supply and demand adjustment device 320.

[0034] To solve this problem, the supply and demand management device 310 performs a first power forecast that predicts the amount of electricity for one or more distributed power sources 100 over a predetermined period in the future, and transmits first data based on the first power forecast to the supply and demand management device 310. The supply and demand adjustment device 320 performs a second power forecast that predicts the amount of electricity for the distributed power sources 100 over the same predetermined period, and generates second data based on the second power forecast. The supply and demand adjustment device 320 selects either the first data or the second data based on predetermined conditions, and creates a power adjustment plan based on the selected data, which is the first selected data.

[0035] As a result, the supply and demand adjustment device 320 can perform decision processing not only on the second data generated based on its own power forecast, but also on the first data generated by the supply and demand management device 310. Therefore, the power adjustment plan of the supply and demand adjustment device 320 is less likely to conflict with the power generation and sales plan of the supply and demand management device 310, and a decrease in accuracy can be suppressed.

[0036] Here, the predetermined future period is the period during which the amount of electricity related to the distributed power source 100 is traded, for example, from 0:00 to 24:00 the following day. The predetermined conditions are the criteria used to determine whether to use the first or second data set. For example, one of these predetermined conditions might be to select the data set with a higher accuracy rate in past power forecasts.

[0037] The first data is data generated based on the power forecast of the supply and demand management device 310 and transmitted from the supply and demand management device 310 to the supply and demand adjustment device 320. The first data is, for example, data showing the amount of power generated by the power generation equipment during the predetermined period, data showing the amount of discharged by the energy storage equipment, or a numerical value calculated based on these data.

[0038] The first data may include a predicted power generation value. The predicted power generation value indicates the predicted power generation amount of the distributed power source 100 during the predetermined period. The first data may include the predicted power generation value and the error range of the predicted power generation value. The distributed power source 100 includes an energy storage facility, and the first data may include a control plan value for controlling the charging and discharging of the energy storage facility during the predetermined period. The first data includes a predicted remaining energy amount of the energy storage facility, and the predicted remaining energy amount indicates the remaining predicted energy amount after the charging and discharging of the energy storage facility has been controlled based on the control plan value. The first data may include a predicted price for the energy amount related to the distributed power source 100 during the predetermined period.

[0039] The second data is data generated based on the power forecast of the supply and demand adjustment device 320 and transmitted from the supply and demand adjustment device 320 to the supply and demand management device 310. The second data is, for example, data showing the discharge amount of the energy storage equipment during the predetermined period, or a numerical value calculated based on that data. The second data is, for example, a control plan value and / or a predicted remaining amount value. The control plan value is a planned value for the supply and demand adjustment device 320 to control the charging and discharging of the energy storage equipment during the predetermined period. The predicted remaining amount value shows the predicted amount of remaining power after the supply and demand adjustment device 320 controls the charging and discharging of the energy storage equipment based on the control plan value.

[0040] The supply and demand management device 310 creates a power generation and sales plan for the wholesale electricity market, and the supply and demand adjustment device 320 creates a power adjustment plan for the power adjustment market. As a result, the supply and demand adjustment device 320, upon receiving the first data from the supply and demand management device 310, can perform decision processing not only on the second data generated based on its own power forecast, but also on the first data generated by the supply and demand management device 310. Therefore, the power adjustment plan of the supply and demand adjustment device 320 is less likely to conflict with the power generation and sales plan of the supply and demand management device 310, and a decrease in accuracy can be suppressed.

[0041] The supply and demand adjustment device 320 may transmit information to the supply and demand management device 310 indicating whether the first selected data is the first data or the second data. This allows the supply and demand management device 310 to understand the data selected by the supply and demand adjustment device 320.

[0042] The supply and demand adjustment device 320 may select either the first data or the second data for each unit time that is an equal division of the predetermined period. For example, the unit time may be 30 minutes. This allows the supply and demand adjustment device 320 to select data that is likely to be highly accurate for each unit time, thereby enabling the creation of a more accurate power adjustment plan.

[0043] The supply and demand adjustment device 320 may transmit information to the supply and demand management device 310 indicating whether the supply and demand adjustment device 320 has selected either the first data or the second data for each unit time. This allows the supply and demand management device 310 to know which data the supply and demand adjustment device 320 has selected.

[0044] The supply and demand management device 310 may calculate a first conformance rate, which is the conformance rate of the past first power forecast, and transmit data indicating the first conformance rate to the supply and demand adjustment device 320. The supply and demand adjustment device 320 may then calculate a second conformance rate, which is the conformance rate of the past second power forecast, and transmit data indicating the second conformance rate to the supply and demand management device 310. In this case, the predetermined condition is to select the higher of the first and second conformance rates. As a result, the supply and demand adjustment device 320 selects the data generated by the device with higher accuracy in power forecasting, thereby suppressing a decline in the power adjustment plan of the supply and demand adjustment device 320.

[0045] The first data may include power generation forecast values. Power generation forecast values ​​indicate the predicted amount of electricity for one or more distributed power sources 100 during the predetermined period. For example, power generation forecast values ​​are calculated by the supply and demand management device 310 but not by the supply and demand adjustment device 320. Therefore, the supply and demand adjustment device 320 can perform decision processing even for types of data that it does not generate itself. Thus, the power adjustment plan of the supply and demand adjustment device 320 is less likely to conflict with the power generation and sales plan of the supply and demand management device 310, and a decrease in accuracy can be suppressed.

[0046] The distributed power source 100 includes energy storage equipment, and the first data and the second data may include control plan values ​​for the supply and demand management device 310 and the supply and demand adjustment device 320 to control the charging and discharging of the energy storage equipment during the predetermined period. This allows the supply and demand adjustment device 320 to perform a decision process by comparing the control plan values ​​it generates with the control plan values ​​generated by the supply and demand management device 310. Therefore, the power adjustment plan of the supply and demand adjustment device 320 is less likely to conflict with the power generation and sales plan of the supply and demand management device 310, and a decrease in accuracy can be suppressed.

[0047] The first and second data sets may include predicted remaining energy values ​​for the energy storage equipment. The predicted remaining energy value indicates the amount of energy after the supply and demand management device 310 and the supply and demand adjustment device 320 control the charging and discharging of the energy storage equipment based on their respective control plan values. This allows the supply and demand adjustment device 320 to perform a judgment process by comparing the predicted remaining energy value based on the control plan value it generates with the predicted remaining energy value based on the control plan value generated by the supply and demand management device 310. Therefore, the power adjustment plan of the supply and demand adjustment device 320 is less likely to conflict with the power generation and sales plan of the supply and demand management device 310, and a decrease in accuracy can be suppressed.

[0048] The first data may include the predicted price of electricity for one or more distributed power sources during the predetermined period described above. This allows the supply and demand adjustment device 320 to receive the cost-effectiveness amount as the first data, enabling it to select data based on cost-effectiveness in addition to the accuracy of the power plan.

[0049] (2.1) Configuration of supply and demand management device Figure 2 shows an example configuration of the supply and demand management device 310. Figure 2(a) shows an example hardware configuration of the supply and demand management device 310, and Figure 2(b) shows an example functional block configuration of the supply and demand management device 310.

[0050] As shown in Figure 2(a), the supply and demand management device 310 includes a first control unit 311, a first storage unit 312, and a first communication unit 313. The first control unit 311, the first storage unit 312, and the first communication unit 313 are connected by a bus 314.

[0051] The first control unit 311 includes at least one processor and controls the first storage unit 312 and the first communication unit 313 by executing a program stored in the first storage unit 312. The at least one processor may consist of a single integrated circuit (IC) or a plurality of communicatively connected circuits (integrated circuits and / or discrete circuits, etc.). The first control unit 311 performs the functions described later by executing the program stored in the first storage unit 312.

[0052] The first storage unit 312 may be composed of various types of memory, such as ROM (Read Only Memory), RAM (Random Access Memory), and auxiliary storage devices. The first storage unit 312 may be a storage device such as an HDD (Hard Disk Drive) or SSD (Solid-State Drive), or it may be implemented by cloud storage. The first storage unit 312 may have a database for managing various types of data. The first storage unit 312 may store programs executed by the first control unit 311. The first storage unit 312 stores and accumulates power consumption data received by the first communication unit 313.

[0053] The first communication unit 313 includes a transceiver and is connected to the communication network 20. The first communication unit 313 communicates with the EMS 200 of the facility 10 and the second communication unit 323 of the supply and demand adjustment device 320 via the communication network 20. The first communication unit 313 periodically receives power consumption data from the distributed power sources 100 (for example, every 30 minutes).

[0054] The supply and demand management device 310 configured as described above is a power management device that creates a power generation and sales plan for the wholesale power market, which is a plan for the amount of electricity related to one or more distributed power sources 100, and comprises a first control unit 311 and a first communication unit 313. The first control unit 311 performs a power forecast that predicts the amount of electricity related to the distributed power sources 100 for the predetermined period, and generates second data based on the power forecast. The first communication unit receives second data from a supply and demand adjustment device 320, which generates second data in order to create a power adjustment plan for the supply and demand adjustment market. The first control unit 311 selects either the first data or the second data based on predetermined conditions, and creates a power generation and sales plan based on the selected data. As a result, the supply and demand management device 310 can perform judgment processing not only on the first data generated based on its own power forecast, but also on the second data generated by the supply and demand adjustment device 320. Therefore, the power generation and sales plan of the supply and demand management device 310 is less likely to conflict with the power adjustment plan of the supply and demand adjustment device 320 in terms of power control, and a decrease in accuracy can be suppressed.

[0055] As shown in Figure 2(b), the first control unit 311 of the supply and demand management device 310 realizes each function of the power supply and demand management function unit 310a by executing a predetermined program. The power supply and demand management function unit 310a includes a first energy data collection unit 331, a first power forecasting unit 332, a first power procurement unit 333, a plan creation unit 334, and a power supply and demand monitoring and adjustment unit 335.

[0056] The first power data collection unit 331 collects power data from the distributed power sources 100, such as the amount of power generated by the power generation equipment, the amount of charge and discharge of the energy storage equipment, and / or the amount of power consumed by each facility 10. The "power" in the power data refers to, for example, the measured value of the cumulative power (kWh) over a predetermined period (for example, 30 minutes).

[0057] The first power forecasting unit 332 analyzes past power consumption data, weather data, and event information, etc., and performs a power forecast for the predetermined period based on future power demand and the predicted power generation amount of the power generation facilities. The first power forecasting unit 332 may also calculate, for example, the predicted power generation value, the error range, and the predicted price from the first data. The first power forecasting unit 332 may also calculate the accuracy rate of the power forecast (first accuracy rate), which will be described later, based on past power forecast data.

[0058] Based on the above power forecast, the first power procurement unit 333 takes into account the surplus power of the distributed power sources 100 and creates a control plan for controlling the charging and discharging of the energy storage equipment, a power procurement plan via the external power grid 10, and / or a sales plan. The control plan includes whether or not to control the charging and discharging of the energy storage equipment and the control plan value. The first power procurement unit 333 may calculate, for example, the control plan value and the predicted remaining capacity value from the first data.

[0059] The planning unit 334 creates a power generation and sales plan based on the power forecast and control plan. The power generation and sales plan includes the power generation plan values ​​for the predetermined period. The planning unit 334 transmits the power generation and sales plan to a designated organization (for example, the Organization for Cross-regional Coordination of Transmission Operators (OCCTO)).

[0060] The planning unit 334 may also create a demand procurement plan based on the power forecast and control plan. The demand procurement plan includes forecasting the amount of electricity to be procured (purchased) from the external power grid 110a and charged to the energy storage equipment during the predetermined period (hereinafter referred to as "external charging electricity"). The demand procurement plan includes data indicating the forecasted external charging electricity. The planning unit 334 may generate this data as first data.

[0061] The power supply and demand monitoring and adjustment unit 335 monitors the power supply and demand situation in real time and controls the charging and discharging of the energy storage equipment in accordance with the power generation and sales plan.

[0062] (2.2) Configuration of supply and demand adjustment device Figure 3 shows an example configuration of the supply and demand adjustment device 320. Figure 3(a) shows an example hardware configuration of the supply and demand adjustment device 320, and Figure 3(b) shows an example functional block configuration of the supply and demand adjustment device 320.

[0063] As shown in Figure 3(a), the supply and demand adjustment device 320 includes a second control unit 321, a second storage unit 322, and a second communication unit 323. The second control unit 321, the second storage unit 322, and the second communication unit 323 are connected by a bus 324.

[0064] The configuration of the second control unit 321, the second storage unit 322, and the second communication unit 323 is the same as the configuration of the first control unit 311, the first storage unit 312, and the first communication unit 313 of the supply and demand management device 310, so a description will be omitted.

[0065] The second communication unit 323 communicates with the EMS 200 of the facility 10 and the first communication unit 313 of the supply and demand management device 310 via the communication network 20. The second communication unit 323, like the first communication unit 313 of the supply and demand management device 310, periodically (for example, every 30 minutes) receives power consumption data from the distributed power sources 100.

[0066] The supply and demand adjustment device 320 configured as described above is a power management device that creates a power adjustment plan targeting the supply and demand adjustment market, which is a plan for the amount of electricity related to one or more distributed power sources 100, and comprises a second control unit 321 and a second communication unit 323. The second control unit 321 performs a power forecast that predicts the amount of electricity related to the distributed power sources 100 during the predetermined period, and generates second data based on the power forecast. The second communication unit receives first data from the supply and demand management device 310, which generates first data in order to create a power generation and sales plan targeting the wholesale electricity market. The second control unit 321 selects either the first data or the second data based on predetermined conditions, and creates a supply and demand adjustment plan based on the selected data. As a result, the supply and demand adjustment device 320 can perform decision processing not only on the second data generated based on its own power forecast, but also on the first data generated by the supply and demand management device 310. Therefore, the power adjustment plan of the supply and demand adjustment device 320 is less likely to conflict with the power generation and sales plan of the supply and demand management device 310, and a decrease in accuracy can be suppressed.

[0067] As shown in Figure 3(b), the supply and demand adjustment device 320 realizes each function of the supply and demand adjustment function unit 320a by executing a predetermined program. The supply and demand adjustment function unit 320a includes a second energy data collection unit 351, a second power forecasting unit 352, an adjustment capacity calculation unit 353, a power adjustment plan creation unit 354, and a power control unit 355.

[0068] The second power consumption data collection unit 351, like the first power consumption data collection unit 331, collects power consumption data from the distributed power sources 100, such as the amount of power generated by the power generation equipment, the amount of charge and discharge of the energy storage equipment, and / or the amount of power consumed by each facility 10.

[0069] The second power forecasting unit 352, similar to the first power forecasting unit 332, analyzes past power consumption data, weather data, and event information, and performs a power forecast for the predetermined period based on future power demand and the projected power generation amount of the power generation facilities. The second power forecasting unit 352 may also calculate the accuracy rate of the power forecast (second accuracy rate), which will be described later, based on past power forecasting data.

[0070] The adjustment power calculation unit 353 creates a control plan for controlling the charging and discharging of the energy storage equipment based on the above power forecast. The control plan includes whether or not to control the charging and discharging of the energy storage equipment and the control plan values. The first power procurement unit 333 also generates second data based on the control plan. The first power procurement unit 333 further selects either the first data or the second data received from the supply and demand management device 310 based on predetermined conditions.

[0071] Here, the predetermined condition is, for example, selecting the higher of the accuracy rate of past power forecasts of the supply and demand management device 310 (first accuracy rate) and the accuracy rate of past power forecasts of the supply and demand adjustment device 320 (second accuracy rate). The first accuracy rate is calculated, for example, by the first power forecasting unit 332 (Figure 2(b)) based on past power forecasting data and stored in the first storage unit 312. The second accuracy rate is calculated, for example, by the second power forecasting unit 352 (Figure 3(b)) based on past power forecasting data and stored in the second storage unit 322.

[0072] The adjustment power calculation unit 353 selects the first data if the first conformance ratio is higher than the second conformance ratio, and selects the second data if the second conformance ratio is higher than the first conformance ratio. Based on the selected data, the adjustment power calculation unit 353 determines the control content of the power adjustment plan.

[0073] The power adjustment plan creation unit 354 creates a power adjustment plan based on the determined control content and transmits it to a designated organization (for example, the AC system). The power control unit 355 controls the charging and discharging of the energy storage equipment so that the power adjustment capacity is realized in accordance with the power adjustment plan.

[0074] (2.3) Data 1 Figure 4(a) shows an example of first data transmitted from the supply and demand management device 310 to the supply and demand adjustment device 320. The first data may be associated with period information that specifies a predetermined period during which electricity trading takes place (for example, from 0:00 to 24:00 the following day). The first data includes at least one of the following: predicted generation value, error range, control plan value, predicted remaining amount value, and predicted price.

[0075] The power generation forecast value indicates the predicted amount of power generated by the power generation facility during the specified period mentioned above. The error range indicates the margin of error in which the predicted power generation value may deviate, and is shown as an upper and / or lower limit relative to the predicted power generation value. The control plan value is a planned value for controlling the charging and discharging of the energy storage equipment during the predetermined period. The predicted remaining amount value indicates the remaining predicted amount of power after the supply and demand management device 310 controls the charging and discharging of the energy storage equipment based on the control plan value.

[0076] The predicted price is the estimated market price for the amount of electricity generated and stored in the power generation and storage facilities during the specified period mentioned above.

[0077] The first data set is not limited to including all of the data shown in Figure 4(a). The first data set may include one or more of the data shown in Figure 4(a). For example, the first data set may include only the predicted power generation value, or it may include the predicted power generation value and the error range. The first data set may include only the control plan value, or it may include only the predicted remaining amount value.

[0078] (2.4) Second Data Figure 4(b) shows an example of second data transmitted from the supply and demand adjustment device 320 to the supply and demand management device 310. The second data may be associated with period information that specifies a predetermined period during which electricity trading takes place (for example, from 0:00 to 24:00 the following day). The second data includes a control plan value and a predicted remaining value.

[0079] The control plan value is the planned value for the supply and demand adjustment device 320 to control the charging and discharging of the energy storage equipment during the predetermined period. The predicted remaining amount value indicates the predicted amount of remaining power after the supply and demand adjustment device 320 controls the charging and discharging of the energy storage equipment based on the control plan value.

[0080] The second data set is not limited to including all the data shown in Figure 4(b). The second data set may include only the control plan values, or only the predicted remaining values.

[0081] (3) Operation of the power management system Figure 5 shows an example of the operation of the power management system 30 according to the embodiment. The supply and demand management device 310 and the supply and demand adjustment device 320 of the power management system 30 execute a predetermined program and perform the following processes.

[0082] In step S11, the first control unit 311 of the supply and demand management device 310 collects energy data from the distributed power sources 100, such as the amount of power generated by the power generation equipment, the amount of charge and discharge of the energy storage equipment, and / or the amount of power consumed by each load device 130. The "energy" in the energy data refers to, for example, the measured value of the cumulative energy (kWh) over a predetermined period (for example, 30 minutes).

[0083] In step S12, the first control unit 311 analyzes past electricity consumption data, weather data, and event information, etc., and performs an electricity forecast based on the electricity demand and predicted power generation amount of the power generation equipment for a predetermined period in the future (for example, from 0:00 to 24:00 the next day). The electricity forecast may include the calculation of the predicted power generation value and error range described above. The first control unit 311 also analyzes past electricity price data, weather data, and event information, etc., and predicts the price of the predicted amount of electricity for the predetermined period.

[0084] In step S13, the first control unit 311 creates a control plan based on the power forecast. The control plan is a plan for controlling the charging and discharging of the energy storage equipment, created taking into account the surplus power of the distributed power source 100. The control plan includes whether or not to control the charging and discharging of the energy storage equipment and the control plan values.

[0085] In step S14, the first control unit 311 generates the first data described above based on the power forecast and control plan, and transmits it to the supply and demand adjustment device 320.

[0086] In step S15, the second control unit 321 of the supply and demand adjustment device 320, similar to the first control unit 311, collects energy data from the distributed power sources 100, such as the amount of power generated by the power generation equipment, the amount of charge and discharge of the energy storage equipment, and / or the amount of power consumed by each load device 130.

[0087] In step S16, the second control unit 321, similar to the first control unit 311, analyzes past power consumption data, weather data, and event information, and performs a power forecast based on the power demand and predicted power generation amount of the power generation equipment during the predetermined period.

[0088] In step S17, the second control unit 321, similar to the first control unit 311, creates a control plan based on the power forecast.

[0089] In step S18, the second control unit 321 generates the second data described above based on the power forecast and control plan.

[0090] In step S19, the first control unit 311 creates a power generation and sales plan based on the first data. Subsequently, the amount of electricity and the price based on the created power generation and sales plan are bid on and determined in the wholesale electricity market.

[0091] On the other hand, in step S20, the second control unit 321 selects either the first data received from the supply and demand management device 310 or the second data it generated, based on the predetermined conditions described above. For example, the second control unit 321 determines which is higher: the accuracy rate of past power forecasts from the supply and demand management device 310 (first accuracy rate) or the accuracy rate of past power forecasts from the supply and demand adjustment device 320 (second accuracy rate). If the first accuracy rate is higher, the second control unit 321 selects the first data; if the second accuracy rate is higher, it selects the second data.

[0092] The first conformance rate may be transmitted from the supply and demand management device 310 to the supply and demand adjustment device 320 when the first data is transmitted, or it may be transmitted in advance from the supply and demand management device 310 to the supply and demand adjustment device 320. The second conformance rate may be calculated by the supply and demand adjustment device 320 as described above and stored in the second storage unit 322.

[0093] In step S21, the second control unit 321 determines the control content based on the selected data (an example of the first selected data), and creates and transmits a power adjustment plan based on the determined control content.

[0094] According to the above example of operation, the supply and demand adjustment device 320 considers the first data generated based on the power forecast of the supply and demand management device 310, compares the first data with the second data it has created, selects which data to use, and determines the control content. As a result, the supply and demand adjustment device 320 can create a more accurate power adjustment plan.

[0095] In the above example of operation, the second control unit 321 may, in step S20, select either the first data or the second data at each unit time (for example, 30 minutes) that evenly divides the predetermined period. This allows the supply and demand adjustment device 320 to select data that is likely to be highly accurate at each unit time, thereby enabling the creation of a more accurate power adjustment plan.

[0096] In the above example of operation, after selecting data in step S20, the second control unit 321 may transmit information (selected data information) to the supply and demand management device 310 indicating whether the selected data is the first data or the second data. In this case, if the second control unit 321 selects the second data, it may transmit the second data to the supply and demand management device 310. This allows the supply and demand management device 310 to know the data selected by the supply and demand adjustment device 320.

[0097] In the above example, the first data generation process (step S14) may be performed after the power prediction process (step S12).

[0098] (4) Examples of changes in operation In the above-described embodiment, the supply and demand management device 310 transmits first data to the supply and demand adjustment device 320, and the supply and demand adjustment device 320 selects either the first or second data to determine the control content. In addition to this, this modified example describes an operation in which the supply and demand adjustment device 320 transmits second data it has generated to the supply and demand management device 310, and the supply and demand management device 310 also selects either the first or second data and determines the control content based on the selected data (an example of the second selected data).

[0099] In this modified example, the supply and demand adjustment device 320 transmits the second data to the supply and demand management device 310, which selects either the first or second data based on the predetermined conditions and creates a power generation and sales plan based on the selected data, the second selected data. As a result, the supply and demand management device 310 can perform decision processing not only on the first data generated based on its own power forecast, but also on the second data generated by the supply and demand adjustment device 320. Consequently, since the supply and demand management device 310 and the supply and demand adjustment device 320 perform decision processing on the data they generate, power control conflicts between the power generation and sales plan of the supply and demand management device 310 and the power adjustment plan of the supply and demand adjustment device 320 are less likely to occur, and a decrease in accuracy can be suppressed.

[0100] In this modified example, the supply and demand management device 310 may transmit information to the supply and demand adjustment device 320 indicating whether the second selected data is the first data or the second data. This allows the supply and demand adjustment device 320 to understand the data selected by the supply and demand management device 310.

[0101] In this modified example, the supply and demand management device 310 may select either the first or second data for each unit time that is an equal division of the predetermined period. For example, the unit time is 30 minutes. This allows the supply and demand management device 310 to select data that is likely to be highly accurate for each unit time, thereby enabling the creation of a more accurate power generation and sales plan.

[0102] In this modified example, the supply and demand management device 310 may transmit information to the supply and demand adjustment device 320 indicating whether the supply and demand management device 310 selected the first data or the second data for each unit time. This allows the supply and demand adjustment device 320 to know which data the supply and demand management device 310 selected.

[0103] Figure 6 shows an example of the operation of the power management system 30 related to this modification example.

[0104] Steps S111 to S114 are the same as processing steps S11 to S14 by the first control unit 311 of the supply and demand management device 310 in Figure 5, so their explanation is omitted. Steps S115 to S118 are the same as processing steps S15 to S18 by the second control unit 321 of the supply and demand adjustment device 320 in Figure 5, so their explanation is omitted.

[0105] In step S118, the second control unit 321 of the supply and demand adjustment device 320 generates the second data and then transmits the second data to the supply and demand management device 310. As a result, both the supply and demand management device 310 and the supply and demand adjustment device 320 receive the first data and the second data.

[0106] In step S119, the second control unit 321 selects either the first data received from the supply and demand management device 310 or the second data it generates, based on the predetermined conditions described above, similar to step S20 in Figure 5. Based on the selected data, the second control unit 321 determines the control content.

[0107] On the other hand, in step S120, the first control unit 311 selects either the second data received from the supply and demand adjustment device 320 or the first data it generated, based on the predetermined conditions described above. For example, the first control unit 311 determines which is higher: the accuracy rate of past power forecasts from the supply and demand management device 310 (first accuracy rate) or the accuracy rate of past power forecasts from the supply and demand adjustment device 320 (second accuracy rate). If the first accuracy rate is higher, the first control unit 311 selects the first data; if the second accuracy rate is higher, it selects the second data.

[0108] The second conformance rate may be transmitted from the supply and demand adjustment device 320 to the supply and demand management device 310 when the second data is transmitted, or it may be transmitted in advance from the supply and demand adjustment device 320 to the supply and demand management device 310. The first conformance rate may be calculated by the supply and demand management device 310 as described above and stored in the first storage unit 312.

[0109] In step S121, the second control unit 321 creates and transmits a power adjustment plan based on the determined control content.

[0110] Meanwhile, in step S122, the first control unit 311 creates a power generation and sales plan based on the selected data. Subsequently, the amount of electricity and the price based on the created power generation and sales plan are bid on and determined in the wholesale electricity market.

[0111] According to the above example of modification, the supply and demand management device 310 and the supply and demand adjustment device 320 select which data to use and determine the control content after considering the data generated by each other, thereby enabling the creation of a more accurate power adjustment plan.

[0112] In the above modified example, the second control unit 321 may, in step S119, select either the first data or the second data at each unit time (for example, 30 minutes) that evenly divides the predetermined period. In this case, the second control unit 321 may transmit information (selected data information) to the supply and demand management device 310 indicating whether the selected data is the first data or the second data.

[0113] In the above modified example, the first control unit 311 may, in step S120, select either the first data or the second data at intervals of evenly divided unit time (for example, 30 minutes). In this case, the first control unit 311 may transmit the selected data information to the supply and demand adjustment device 320.

[0114] As a result, the supply and demand management device 310 and the supply and demand adjustment device 320 can each select data that is likely to be highly accurate for each unit of time, thereby enabling the creation of a more accurate power adjustment plan.

[0115] (5) Other embodiments Although this disclosure has been described by the embodiments described above, the descriptions and drawings that constitute part of this disclosure should not be understood as limiting the invention. Various alternative embodiments, examples, and operational techniques will become apparent to those skilled in the art from this disclosure.

[0116] In the operational examples shown in Figures 5 and 6, the supply and demand management device 310 creates a power generation and sales plan (step S19 in Figure 5 and step S122 in Figure 6), but the disclosure is not limited thereto. The supply and demand management device 310 may, instead of, or in addition to, the power generation and sales plan, create the above-described demand procurement plan (an example of a first power plan or an example of a second power plan) and transmit it to the Organization for Cross-regional Coordination of Transmission Operators (OCCTO). The supply and demand management device 310 controls the charging of the energy storage facility from the external power grid 110a according to the demand procurement plan. In this case, the first data may include data indicating the amount of external charging power, which is the amount of power charged to the energy storage facility from the external power grid 110a during the predetermined period. Even when a demand procurement plan is created in this manner, the supply and demand management device 310 can perform decision processing not only on the first data generated based on its own power forecast, but also on the second data generated by the supply and demand adjustment device 320. Therefore, the demand and procurement plan of the supply and demand management device 310 is less likely to conflict with the power adjustment plan and power control of the supply and demand adjustment device 320, thereby suppressing a decrease in accuracy.

[0117] In the example shown in Figure 5, the supply and demand management device 310 transmits first data to the supply and demand adjustment device 320, and the supply and demand adjustment device 320 selects whether it is first data or second data, but the system is not limited to this. The supply and demand adjustment device 320 (an example of a first power management device) may create a power adjustment plan (an example of a first power plan) targeting the supply and demand adjustment market as the first power market, and the supply and demand management device 310 (an example of a second power management device) may create a power generation sales plan or a demand procurement plan targeting the wholesale power market as the second power market. For example, the supply and demand adjustment device 320 may transmit second data to the supply and demand management device 310, and the supply and demand management device 310 may select whether it is first data or second data, and the supply and demand management device 310 may create a power generation sales plan or a demand procurement plan based on the selected data. This allows the supply and demand management device 310 to perform decision processing not only on the first data generated based on its own power forecast, but also on the second data generated by the supply and demand adjustment device 320. Therefore, the power generation and sales plan or demand procurement plan of the supply and demand management device 310 is less likely to conflict with the power adjustment plan and power control of the supply and demand adjustment device 320, thereby suppressing a decrease in accuracy.

[0118] In the power management system 30 according to the above embodiment, the supply and demand management device 310 and the supply and demand adjustment device 320 each select either the first data or the second data and determine the control content, but are not limited to this. In the operation example in Figure 5, the supply and demand management device 310, upon receiving information indicating the data selected by the supply and demand adjustment device 320, may select the data selected by the supply and demand adjustment device 320. Alternatively, the supply and demand adjustment device 320, upon receiving information indicating the data selected by the supply and demand management device 310, may select the data selected by the supply and demand management device 310. This eliminates the need for both the supply and demand management device 310 and the supply and demand adjustment device 320 to perform redundant decision processing, thereby suppressing a decrease in the accuracy of both power plans.

[0119] Alternatively, the power management system 30 may be equipped with a control device separate from the supply and demand management device 310 and the supply and demand adjustment device 320, and this control device may receive first data and second data from the supply and demand management device 310 and the supply and demand adjustment device 320, respectively, and select either data based on the predetermined conditions described above.

[0120] In the operation examples shown in Figures 5 and 6, the predetermined conditions for selecting between the first data and the second data are not limited to the accuracy of the prediction. The supply and demand management device 310 or the supply and demand adjustment device 320 may, for example, alternately select the first data and the second data at each predetermined period.

[0121] The supply and demand management device 310 may calculate the amount of the effect when the distributed power sources 100 are controlled based on the control plan, as the predicted price of the first data (Figure 4(a)). The calculation of the amount of the effect may include, for example, the calculation of a premium price in accordance with the FIP (Feed-in Premium) system. The FIP system is a system in which, when electricity generated from renewable energy is sold, an amount equal to the sales revenue plus a premium (subsidy) price is paid.

[0122] The supply and demand adjustment device 320 receives the effective amount as first data, and in addition to the accuracy of the power plan, it can select data based on cost-effectiveness to determine the control content.

[0123] The supply and demand adjustment device 320 may consist of multiple devices. For example, the supply and demand adjustment device 320 may include two independent devices, such as a device for RA and a device for AC. For example, the device for RA provides a function to calculate the adjustment capacity of the amount of electricity from power generation facilities and energy storage facilities, and the device for AC provides a function to create a control plan based on the adjustment capacity output by the device for RA and to support trading in the supply and demand adjustment market. In this case, the device for RA and the device for AC may exchange data with each other.

[0124] The operation flows and operation examples in the embodiments described above do not necessarily have to be executed chronologically in the order shown in the flow diagram or sequence diagram. For example, the steps in the operation may be executed in a different order than that shown in the flow diagram or sequence diagram, or they may be executed in parallel. Also, some steps in the operation may be deleted, or further steps may be added to the process. Furthermore, the operation flows and operation examples in the embodiments described above may be implemented separately and independently, or two or more operation flows and operation examples may be combined and implemented. For example, some steps of one operation flow may be added to another operation flow, or some steps of one operation flow may be replaced with some steps of another operation flow.

[0125] A program may be provided that causes a computer to perform the operations according to the above embodiment. The program may be recorded on a computer-readable medium. Using a computer-readable medium, it is possible to install the program on a computer. Here, the computer-readable medium on which the program is recorded may be a non-transient recording medium. The non-transient recording medium is not particularly limited, but may be a recording medium such as a CD-ROM or DVD-ROM. Furthermore, the circuits that perform the operations performed in the above embodiment may be integrated to form a semiconductor integrated circuit (chipset, SoC).

[0126] The terms “include,” “comprise,” and their variations as used in this disclosure do not mean that only the listed items are included, but that the listed items may be included, or that additional items may be included in addition to the listed items. Furthermore, the term “or” as used in this disclosure is not intended to mean exclusive OR. The terms “based on” and “according to” as used in this disclosure do not mean “based only on” or “according only to” unless otherwise specified. “Based on” means both “based only on” and “based at least partially on.” Similarly, “according to” means both “based only on” and “according at least partially to.” Moreover, any reference to elements using designations such as “first,” “second,” etc., as used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used herein as a convenient way to distinguish between two or more elements. Therefore, references to first and second elements do not mean that only two elements may be employed therein, or that the first element must precede the second element in any way. In this disclosure, if articles are added by translation, such as a, an, and the in English, these articles shall be plural unless it is clearly indicated otherwise from the context.

[0127] Although the embodiments have been described in detail above with reference to the drawings, the specific configuration is not limited to those described above, and various design changes can be made without departing from the gist of the invention.

[0128] (6) Addendum The features of the above-described embodiment are noted below.

[0129] (Note 1) A first power management device that creates a first power plan for the first electricity market, which is a plan for the amount of electricity related to one or more distributed power sources, A second power management device that creates a second power plan for the amount of electricity related to one or more distributed power sources, which is a second power plan that is different from the first power market, The first power management device performs a first power forecast to predict the amount of electricity related to one or more distributed power sources over a predetermined period in the future, and transmits first data based on the first power forecast to the second power management device. The second power management device performs a second power forecast to predict the amount of power related to one or more distributed power sources during the predetermined period, and generates second data based on the second power forecast. The second power management device selects the first data or the second data based on predetermined conditions, and creates the second power plan based on the selected data, which is the first selected data. Power management system.

[0130] (Note 2) The second power management device transmits the second data to the first power management device. The first power management device selects the first data or the second data based on the predetermined conditions, and creates the first power plan based on the second selected data, which is the selected data. The power management system described in Appendix 1.

[0131] (Note 3) The first power management device is a supply and demand management device that creates the first power plan targeting the wholesale power market as the first power market, The aforementioned second power management device is a supply and demand adjustment device that creates the aforementioned second power plan targeting the supply and demand adjustment market as the aforementioned second power market. The power management system described in Appendix 1 or 2.

[0132] (Note 4) The first power management device is a supply and demand adjustment device that creates the first power plan targeting the supply and demand adjustment market as the first power market, The aforementioned second power management device is a supply and demand management device that creates the aforementioned second power plan targeting the wholesale power market as the aforementioned second power market. The power management system described in Appendix 1 or 2.

[0133] (Note 5) The second power management device transmits to the first power management device information indicating whether the first selected data is the first data or the second data. The power management system described in Appendix 1 or 2.

[0134] (Note 6) The second power management device selects either the first data or the second data for each unit time that divides the predetermined period into equal parts. The power management system described in Appendix 1 or 2.

[0135] (Note 7) The second power management device transmits to the first power management device information indicating which of the first data or the second data it selected in each unit time. The power management system described in Appendix 6.

[0136] (Note 8) The first power management device transmits information to the second power management device indicating whether the second selected data is the first data or the second data. The power management system described in Appendix 2.

[0137] (Note 9) The first power management device selects either the first data or the second data for each unit time that divides the predetermined period into equal parts. The power management system described in Appendix 2.

[0138] (Note 10) The first power management device transmits to the second power management device information indicating which of the first data or the second data the first power management device has selected in each unit time. The power management system described in Appendix 9.

[0139] (Note 11) The first power management device calculates a first conformance rate, which is the conformance rate of past first power forecasts, and transmits data indicating the first conformance rate to the second power management device. The second power management device calculates a second conformance rate, which is the conformance rate of past second power forecasts, and transmits data indicating the second conformance rate to the first power management device. The aforementioned predetermined condition is to select the higher of the first and second conformance rates. The power management system described in Appendix 1 or 2.

[0140] (Note 12) The first data or the second data includes a power generation forecast value, The predicted power generation value indicates the predicted amount of electricity from one or more distributed power sources during the predetermined period. The power management system described in Appendix 1 or 2.

[0141] (Note 13) The aforementioned one or more distributed power sources include energy storage equipment, The first data and the second data each include control plan values ​​for the first power management device and the second power management device to control the charging and discharging of the energy storage equipment during the predetermined period. The power management system described in Appendix 1 or 2.

[0142] (Note 14) The first data and the second data include the predicted remaining amount of electricity in the energy storage facility. The predicted remaining charge value indicates the amount of energy after the first power management device and the second power management device control the charging and discharging of the one or more energy storage facilities based on their respective control plan values. The power management system described in Appendix 13.

[0143] (Note 15) The first data or the second data includes the predicted price of electricity for the one or more distributed power sources during the predetermined period. The power management system described in Appendix 1 or 2.

[0144] (Note 16) A power management device that creates a first power plan for a first power market, which is a plan for the amount of electricity related to one or more distributed power sources, A control unit that performs a first power forecast to predict the amount of electricity related to one or more distributed power sources over a predetermined period in the future, and generates first data based on the first power forecast, A communication unit that receives second data from a second power management device that generates second data in order to create a second power plan for a second power market different from the first power market, The control unit selects the first data or the second data based on predetermined conditions and creates the first power plan based on the selected data. Power management device.

[0145] (Note 17) A power management method performed by a first power management device that creates a first power plan for one or more distributed power sources, which is a plan for the amount of electricity for a first power market, and a second power management device that creates a second power plan for one or more distributed power sources, which is a plan for the amount of electricity for a second power market different from the first power market, The first power management device performs a first power forecast, which predicts the amount of electricity related to one or more distributed power sources over a predetermined period in the future. The first power management device transmits first data based on the first power forecast to the second power management device, The second power management device performs a second power forecast, which predicts the amount of power related to one or more distributed power sources during the predetermined period. The second power management device generates second data based on the second power forecast, The second power management device selects the first data or the second data based on predetermined conditions, The second power management device creates a second power plan based on the selected data. Power management methods including

[0146] (Note 18) A computer program executed by a power management device that creates a first power plan for a first power market, which is a plan for the amount of electricity for one or more distributed power sources, The steps include: performing a first power forecast that predicts the amount of electricity related to one or more distributed power sources over a predetermined period in the future; A step of generating first data based on the first power forecast, The steps include receiving the second data from a second power management device that generates second data in order to create a second power plan for a second power market different from the first power market, A step of selecting at least one of the first data or the second data based on predetermined conditions, The steps include creating the first power plan based on the selected data and A program that causes a computer to execute something. [Explanation of Symbols]

[0147] 30: Power Management System 100: Distributed power supply 310: Supply and demand management device 311: First control unit 313: First Communications Department 320: Supply and demand adjustment device 321: Second Control Unit 323: Second Communications Department 400: Wholesale electricity market 500: Supply and Demand Adjustment Market

Claims

1. A first power management device that creates a first power plan for the first electricity market, which is a plan for the amount of electricity related to one or more distributed power sources, A second power management device that creates a second power plan for the amount of electricity related to one or more distributed power sources, which is a second power plan that is different from the first power market, The first power management device performs a first power forecast to predict the amount of electricity related to one or more distributed power sources over a predetermined period in the future, and transmits first data based on the first power forecast to the second power management device. The second power management device performs a second power forecast to predict the amount of power related to one or more distributed power sources during the predetermined period, and generates second data based on the second power forecast. The second power management device selects the first data or the second data based on predetermined conditions, and creates the second power plan based on the first selected data, which is the selected data. Power management system.

2. The second power management device transmits the second data to the first power management device. The first power management device selects the first data or the second data based on the predetermined conditions, and creates the first power plan based on the second selected data, which is the selected data. The power management system according to claim 1.

3. The first power management device is a supply and demand management device that creates the first power plan targeting the wholesale power market as the first power market, The second power management device is a supply and demand adjustment device that creates the second power plan targeting the supply and demand adjustment market as the second power market. The power management system according to claim 1 or 2.

4. The first power management device is a supply and demand adjustment device that creates the first power plan targeting the supply and demand adjustment market as the first power market, The second power management device is a supply and demand management device that creates the second power plan targeting the wholesale power market as the second power market. The power management system according to claim 1 or 2.

5. The second power management device transmits to the first power management device information indicating whether the first selected data is the first data or the second data. The power management system according to claim 1 or 2.

6. The second power management device selects either the first data or the second data for each unit time that divides the predetermined period into equal parts. The power management system according to claim 1 or 2.

7. The second power management device transmits to the first power management device information indicating which of the first data or the second data the second power management device has selected in each unit time. The power management system according to claim 6.

8. The first power management device transmits information to the second power management device indicating whether the second selected data is the first data or the second data. The power management system according to claim 2.

9. The first power management device selects either the first data or the second data for each unit time that divides the predetermined period into equal parts. The power management system according to claim 2.

10. The first power management device transmits to the second power management device information indicating which of the first data or the second data the first power management device has selected in each unit time. The power management system according to claim 9.

11. The first power management device calculates a first accuracy rate, which is the accuracy rate of past first power forecasts, and transmits data indicating the first accuracy rate to the second power management device. The second power management device calculates a second conformance rate, which is the conformance rate of past second power forecasts, and transmits data indicating the second conformance rate to the first power management device. The aforementioned predetermined condition is to select the higher of the first and second conformance rates. The power management system according to claim 1 or 2.

12. The first data or the second data includes a power generation forecast value, The predicted power generation value indicates the predicted amount of electricity from one or more distributed power sources during the predetermined period. The power management system according to claim 1 or 2.

13. The aforementioned one or more distributed power sources include energy storage equipment, The first data and the second data each include control plan values ​​for the first power management device and the second power management device to control the charging and discharging of the energy storage equipment during the predetermined period. The power management system according to claim 1 or 2.

14. The first data and the second data include the predicted remaining amount of electricity in the energy storage facility. The predicted remaining charge value indicates the amount of energy after the first power management device and the second power management device control the charging and discharging of the one or more energy storage facilities based on their respective control plan values. The power management system according to claim 13.

15. The first data or the second data includes the predicted price of electricity for the one or more distributed power sources during the predetermined period. The power management system according to claim 1 or 2.

16. A power management device that creates a first power plan for the first electricity market, which is a plan for the amount of electricity related to one or more distributed power sources, A control unit that performs a first power forecast to predict the amount of electricity related to one or more distributed power sources over a predetermined period in the future, and generates first data based on the first power forecast, A communication unit that receives second data from a second power management device that generates second data in order to create a second power plan for a second power market different from the first power market, The control unit selects the first data or the second data based on predetermined conditions and creates the first power plan based on the selected data. Power management device.

17. A power management method performed by a first power management device that creates a first power plan for one or more distributed power sources, which is a plan for the amount of electricity for a first power market, and a second power management device that creates a second power plan for one or more distributed power sources, which is a plan for the amount of electricity for a second power market different from the first power market, The first power management device performs a first power forecast, which predicts the amount of electricity related to one or more distributed power sources over a predetermined period in the future. The first power management device transmits first data based on the first power forecast to the second power management device, The second power management device performs a second power forecast, which predicts the amount of power related to one or more distributed power sources during the predetermined period. The second power management device generates second data based on the second power forecast, The second power management device selects the first data or the second data based on predetermined conditions, The second power management device creates a second power plan based on the selected data. Power management methods including

18. A computer program executed by a power management device that creates a first power plan for a first power market, which is a plan for the amount of electricity related to one or more distributed power sources, The steps include: performing a first power forecast that predicts the amount of electricity related to one or more distributed power sources over a predetermined period in the future; A step of generating first data based on the first power forecast, The steps include receiving the second data from a second power management device that generates second data in order to create a second power plan for a second power market different from the first power market, A step of selecting at least one of the first data or the second data based on predetermined conditions, The steps include creating the first power plan based on the selected data and A program that causes a computer to execute something.

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