System, program and method
The system optimizes battery charging and discharging to manage power networks efficiently by predicting usage and allocating resources, addressing the challenge of effective battery utilization in power networks.
Patent Information
- Application Number
- JP2023115073
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-07-13
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2043-07-13
AI Technical Summary
Existing systems struggle to effectively utilize batteries for energy savings and efficient power management in power networks.
A system that controls the charging and discharging of multiple movable batteries to optimize power supply to the power network by prioritizing first and second controls based on predicted usage status and power resource availability.
Enhances power network management by accurately predicting and allocating battery resources to meet demand, reducing the need for excess battery reserves and improving energy efficiency.
Smart Images

Figure 2025012322000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a system, a program and a method. [Background technology]
[0002] Patent documents 1 to 7 disclose techniques relating to supply and demand adjustment in power grids. [Prior art document] [Patent documents] Patent Document 1: JP 2021-87261 A Patent Document 2: JP 2011-50240 A Patent Document 3: JP 2021-150988 A Patent Document 4: JP 2021-100326 A Patent Document 5: JP 2021-149788 A Patent Document 6: JP 2020-108301 A Patent Document 7: JP 2021-16288 A Summary of the Invention [Problem to be solved by the invention]
[0003] There is a problem in that it is not easy to effectively utilize batteries to achieve energy conservation. [Means for solving the problem]
[0004] In a first aspect of the present invention, a system is provided. The system controls charging of a plurality of movable batteries and power supply from the plurality of movable batteries to an external source. The system includes a control unit that provides power resources to a power network by performing at least one of a first control for reducing an amount of charging the plurality of movable batteries and a second control for increasing an amount of power supply from the plurality of movable batteries to an external source in response to a first request for reducing power consumption. The system includes an allocation unit that allocates whether each of the plurality of movable batteries will provide power resources to the power network through the first control or the second control in each of a plurality of time periods in the future, with the first control being prioritized over the second control, based on an amount of power resources that each of the plurality of movable batteries can provide to the power network and an amount of power resources that each of the plurality of movable batteries needs to provide to the power network.
[0005] In the above system, the allocation unit may allocate, during each of a plurality of time periods in the future, (i) when the total amount of power resources that the plurality of movable batteries can provide to the power network through the first control is equal to or greater than the amount of power resources that need to be provided to the power network, to provide power resources to the power network only through the first control during each time period, and (ii) when the total amount of power resources that the plurality of movable batteries can provide to the power network through the first control is less than the amount of power resources that need to be provided to the power network, to provide the power resources that cannot be provided to the power network through the first control during each time period through the second control.
[0006] Any of the above systems may include an estimation unit that estimates an amount of power resources that each of the plurality of movable batteries can provide to the power network through each of the first control and the second control in each of a plurality of future time periods based on predicted usage status of the plurality of movable batteries.
[0007] In any of the above systems, the allocation unit may allocate, in each of a plurality of time periods in the future, (i) when the total amount of power resources that the plurality of movable batteries can provide to the power network through the first control estimated by the estimation unit is equal to or greater than the amount of power resources that need to be provided to the power network, to provide power resources to the power network only through the first control in each time period, and (ii) when the total amount of power resources that the plurality of movable batteries can provide to the power network through the first control estimated by the estimation unit is less than the amount of power resources that need to be provided to the power network, to provide the power resources that cannot be provided to the power network through the first control in each time period through the second control.
[0008] In any of the above systems, the estimation unit may estimate the power resources that need to be provided to the power network in each of a plurality of time periods in the future based on a target value of future power consumption by the plurality of movable batteries for each time period and a prediction of future charge / discharge amounts of the plurality of movable batteries.
[0009] In any of the above systems, the allocation unit may allocate an amount of power resources that each of the plurality of movable batteries will provide to the power network through at least one of the first control and the second control in each of a plurality of time periods in the future.
[0010] In any of the above systems, the estimation unit may allocate whether each of the plurality of movable batteries will provide the power resource to the power network through the first control or the second control in each of a plurality of time periods within a period in which the power resource agreed upon in the power market should be provided to the power network, by giving priority to the first control over the second control, based on an amount of power resource that each of the plurality of movable batteries can provide to the power network and an amount of power resource that needs to be provided to the power network. In response to receiving the first request within a period in which the power resource is to be provided to the power network, the control unit may perform at least one of the first control and the second control based on the amount of power resource that will be available to be provided to the power network estimated by the estimation unit.
[0011] In any of the above systems, the control unit may further provide power resources to the power network by performing at least one of a third control for increasing a charge amount to the plurality of movable batteries and a fourth control for decreasing an amount of power supply from the plurality of movable batteries to an outside in response to a second request for increasing power consumption. The allocation unit may allocate whether each of the plurality of movable batteries will provide power resources to the power network through the first control, the second control, the third control, or the fourth control in each of a plurality of time periods in the future, based on an amount of power resources that each of the plurality of movable batteries can provide to the power network and an amount of power resources that needs to be provided to the power network.
[0012] In any of the above systems, the plurality of movable batteries may include a battery mounted on a vehicle.
[0013] In any of the above systems, the plurality of movable batteries may include batteries mounted on the vehicle and replaceable at a plurality of stations.
[0014] In a second aspect of the present invention, there is provided a program. The program causes a computer to function as any one of the above systems. The program may be stored in a non-transitory computer-readable storage medium.
[0015] In a third aspect of the present invention, a method is provided. The method includes a step of providing power resources to a power network by performing at least one of a first control for reducing a charge amount to a plurality of movable batteries and a second control for increasing an amount of power supply from the plurality of movable batteries to an outside in response to a first request for reducing power consumption. The method includes a step of allocating whether each of the plurality of movable batteries provides power resources to the power network through the first control or the second control in each of a plurality of time periods in the future, with the first control being prioritized over the second control, based on an amount of power resources that each of the plurality of movable batteries can provide to the power network and an amount of power resources that each of the plurality of movable batteries needs to provide to the power network.
[0016] The above summary of the invention does not list all of the features of the present invention. In addition, subcombinations of these features may also be inventions. [Brief description of the drawings]
[0017] [Figure 1] 2 conceptually illustrates a usage pattern of a power system 5 in one embodiment. [Diagram 2] 1 shows an example of a system configuration of a system 100. [Diagram 3] 3 is a graph showing a schematic diagram of predicted power consumption 301 and target power consumption 302 that are predicted to be consumed during a provision period. [Figure 4] 13 is a graph showing a schematic diagram of estimated power 311 during a provision period. [Diagram 5] 11 is a graph showing a schematic diagram of the required power 331 that needs to be secured by the system 100 during the provision period. [Figure 6]1 is a diagram for explaining an example of a method for calculating power resources that the vehicle 10 can provide. FIG. [Figure 7] FIG. 11 is a diagram for explaining another example of a method for calculating the power resource that the vehicle 10 can provide. [Figure 8] FIG. 11 is a diagram for explaining another example of a method for calculating the power resource that the vehicle 10 can provide. [Figure 9] The total power and the total amount of power that can be provided from all stations 30 are shown diagrammatically. [Figure 10] 3 shows an example of power resources allocated by the allocation unit 230 to the required power 331. [Figure 11] FIG. 2 is a schematic diagram for explaining power resources allocated to a battery 12a. [Figure 12] FIG. 2 is a schematic diagram for explaining power resources allocated to a battery 12b and a battery 12c. [Figure 13] FIG. 13 is a schematic diagram for explaining power resources allocated to a battery 12d and a battery 12e. [Figure 14] 13 is a graph illustrating a control for suppressing provision of power resources according to a second control. [Figure 15] 13 is another graph illustrating the control for suppressing the provision of power resources according to the second control. [Figure 16] FIG. 11 is a diagram for explaining an example of a method for calculating the power resource that can be provided by the vehicle 10a, taking into consideration an integrated value of discharge power. [Figure 17] 1 is a diagram for explaining control according to SOC for the battery 12 to provide power resources. FIG. [Figure 18] FIG. 11 is a diagram for explaining an example of a method for calculating the power resources that can be provided by the vehicles 10d and 10e, taking into account the integrated value of the discharged power. [Figure 19] 1 shows an example of the change over time in power consumption due to the control of the station 30. [Figure 20] 4 is a flowchart showing the procedure of a process executed by the system 100. [Figure 21] An example of a computer 2000 is shown. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0018] The present invention will be described below through embodiments of the invention, but the following embodiments do not limit the scope of the invention according to the claims. Furthermore, not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention.
[0019] 1 conceptually illustrates a usage form of a power system 5 in one embodiment. The power system 5 includes a station 30a, a station 30b, a station 30c, and a station 30d, a power generation device 80, a system 100, a server 180, and vehicles 10a, 10b, 10c, 10d, 10e, and 20.
[0020] In this embodiment, stations 30a, 30b, 30c, and 30d may be collectively referred to as "stations 30." Vehicles 10a, 10b, 10c, 10d, and 10e may be collectively referred to as "vehicles 10." Vehicles 10a, 10b, 10c, 10d, and 10e are respectively equipped with batteries 12a, 12b, 12c, 12d, and 12e. Battery 12a, battery 12b, battery 12c, battery 12d, and battery 12e may be collectively referred to as "batteries 12."
[0021] The system 100 is connected to a server 180 through a communication network 190. The server 180 is capable of communicating with the station 30 through the communication network 190. The system 100 controls the station 30 through the communication network 190. The system 100 communicates with the vehicle 10 through the communication network 190, and acquires various types of information about the vehicle 10, such as the driving history of the vehicle 10 and the SOC of the battery 12.
[0022] The station 30, the power consumers 70, and the power generation equipment 80 are connected to a power network 90. The power generation equipment 80 includes, for example, a power plant operated by a power company. Electric power generated by the power generation equipment 80 can be supplied to the station 30 and the power consumers 70 through the power network 90. The power network 90 is, for example, a power system.
[0023] The stations 30 charge and discharge the batteries 12 mounted on the vehicles 10 connected thereto, or are in standby mode. The vehicles 10 are, for example, electric vehicles. The batteries 12 are batteries that supply power for driving the vehicles 10. The vehicles 10 may be privately owned vehicles, vehicles used by businesses for business purposes, shared cars, etc. The batteries 12 are an example of movable batteries. The batteries 12 can be movable while mounted on the vehicles 10.
[0024] Station 30a is provided in a private home 42 and charges and discharges the battery 12a of vehicle 10a connected to station 30a. Station 30b is a public charging and discharging station and charges and discharges the batteries 12 mounted on multiple vehicles 10 including vehicles 10b and 10c connected to station 30b. Station 30c is a station provided in a facility 44 and charges and discharges the batteries 12 mounted on multiple vehicles 10 including vehicles 10d and 10e connected to station 30c.
[0025] The station 30d holds a plurality of batteries that can be mounted on the vehicle 20, and charges and discharges the held plurality of batteries. The vehicle 20 is, for example, an electric motorcycle. The battery 12f used in the vehicle 20 is exchanged at the station 30. As an example, the battery 12f used to run the vehicle 20 is exchanged for a battery 12g that has been charged at the station 30d, and is then attached to the vehicle 20. The batteries 12f and 12g are examples of movable batteries. The batteries 12f and 12g can be made movable by being mounted on the vehicle 20. The batteries 12f and 12g can also be made movable by being carried by a person.
[0026] Each of the stations 30 is capable of charging the battery 12 with power provided from the power network 90. The stations 30 are capable of discharging the battery 12 to feed into the power network 90.
[0027] Each of the stations 30 charges and discharges the battery 12 under the control of the system 100. For example, when a power shortage occurs in the power network 90, the system 100 can cause the station 30 to discharge the battery 12 to supply power to the power network 90. When a power surplus occurs in the power network 90, the system 100 can cause the station 30 to charge the battery to reduce the power surplus in the power network 90. The system 100 can provide primary regulation capacity, secondary regulation capacity, and tertiary regulation capacity in the power network 90 by using the station 30. In this way, the system 100 can aggregate multiple batteries 12 and manage them as a power resource for the power network 90.
[0028] The server 180 is a server used by, for example, a power aggregator. The server 180 performs power trading in a power market. The system 100 can provide the battery 12 managed as a power resource to the server 180. The system 100 controls charging and discharging of the battery by the station 30, and provides the amount of power agreed upon by the server 180 to the power network 90. For example, the system 100 controls charging and discharging of the battery 12 by the station 30 in response to a demand from the server 180, and provides the amount of power according to the demand.
[0029] 2 shows an example of a system configuration of the system 100. The system 100 includes a processing unit 200, a storage unit 280, and a communication device 290.
[0030] The processing unit 200 controls the communication device 290. The communication device 290 is responsible for communication between the station 30a and the server 180. The processing unit 200 is realized by an arithmetic processing device including a processor. The storage units 280 are realized by including non-volatile storage media. The processing unit 200 performs processing using information stored in the storage unit 280. The processing unit 200 may be realized by a microcomputer including a CPU, a ROM, a RAM, an I / O, a bus, etc. The system 100 may be realized by a computer.
[0031] In this embodiment, the system 100 is realized by a single computer. However, in other embodiments, the system 100 may be realized by multiple computers. At least some functions of the system 100 may be realized by one or more servers, such as a cloud server.
[0032] The processing unit 200 includes an acquisition unit 210 , an estimation unit 220 , an allocation unit 230 , a control unit 240 , and a classification unit 250 .
[0033] The acquisition unit 210 acquires the driving history of the vehicle 10 and the charge / discharge history of the battery 12. The acquisition unit 210 may acquire the driving history transmitted from the vehicle 10 to the system 100. The driving history of the vehicle 10 may include information associating the position of the vehicle 10 and the SOC of the battery 12 with date and time. The acquisition unit 210 may acquire the charge / discharge history transmitted from the vehicle 10 to the system 100. The acquisition unit 210 may acquire the charge / discharge history of the battery 12 transmitted from the station 30. The charge / discharge history may include information associating the charge / discharge amount of the battery 12 with date and time. The acquisition unit 210 may acquire information indicating the current state of the vehicle 10. The current state of the vehicle 10 may include the current position of the vehicle 10, the current SOC of the battery 12, and the like. The estimation unit 220, the allocation unit 230, and the control unit 240 may perform processing based on the information acquired by the acquisition unit 210.
[0034] The system 100 controls charging of the battery 12 and power supply from the battery 12 to the outside. In response to a first request requesting reduction in power consumption, the control unit 240 provides power resources to the power network 90 by performing at least one of a first control for reducing the amount of charge to the battery 12 and a second control for increasing the amount of power supply from the battery 12. In response to a second request requesting increase in power consumption, the control unit 240 may provide power resources to the power network 90 by performing at least one of a third control for increasing the amount of charge to the battery 12 and a fourth control for reducing the amount of power supply from the battery 12 to the outside. The power resources may be power or an amount of power. Providing power resources to the power network 90 includes increasing the power demand of the power network 90 and decreasing the power demand of the power network 90, and does not mean only supplying power to the power network 90.
[0035] The estimation unit 220 estimates whether each of the batteries 12 can provide power resources to the power network 90 through the first control or the second control based on the predicted usage status of the batteries 12. The estimation unit 220 estimates the amount of power resources that each of the batteries 12 can provide to the power network 90 through the first control or the second control based on the predicted usage status of the batteries 12. The estimation unit 220 may estimate whether each of the batteries 12 can provide power resources to the power network 90 through the first control, the second control, the third control, or the fourth control based on the predicted usage status of the batteries 12. For example, the estimation unit 220 may estimate the amount of power resources that each of the batteries 12 can provide to the power network 90 through the first control, the second control, the third control, or the fourth control based on the predicted usage status of the batteries 12.
[0036] The estimation unit 220 may estimate an amount of power resources that each of the batteries 12 can provide to the power network 90 by each of the first control and the second control in each of a plurality of time periods in the future based on a predicted usage state of the battery 12. The estimation unit 220 may estimate an amount of power resources that each of the batteries 12 can provide to the power network 90 by each of the first control, the second control, the third control, and the fourth control in each of a plurality of time periods in the future based on a predicted usage state of the battery 12. The estimation unit 220 may estimate power resources that need to be provided to the power network 90 in each of a plurality of time periods in the future based on a target value of power consumption by the battery 12 for each time period in the future and a prediction of the charge / discharge amount of the battery 12 in the future.
[0037] The predicted usage status of the battery 12 includes, for example, a time period during which the battery 12 is predicted to be used. The predicted usage status of the battery 12 may further include a predicted charge state (e.g., a charging rate) of the battery 12. The estimation unit 220 may estimate the predicted usage status of the battery 12 based on a past usage history of the battery 12 and a future usage plan for the battery 12.
[0038] The predicted usage status of the battery 12 may include a timing at which charging or discharging of the battery 12 is predicted. The estimation unit 220 estimates an amount of power resources that can be provided to the power network 90 by changing the timing at which charging or discharging of the battery 12 is performed, with respect to the timing at which charging or discharging of the battery 12 is predicted, within a period in which the power resources agreed upon in the power market should be provided to the power network 90. By performing this estimation, the estimation unit 220 may estimate an amount of power resources that each of the batteries 12 can provide to the power network 90 by each of the first control, the second control, the third control, and the fourth control.
[0039] The estimation unit 220 may allocate whether the battery 12 provides the power resource to the power network 90 by the first control or the second control, giving priority to the first control over the second control, in each time period during a period during which the power resource agreed upon in the power market should be provided to the power network 90, based on the amount of power resource that each of the batteries 12 can provide to the power network 90 and the amount of power resource that needs to be provided to the power network 90. The estimation unit 220 may allocate whether the battery 12 provides the power resource to the power network 90 by the first control, the second control, the third control, or the fourth control, in each time period during a period during which the power resource agreed upon in the power market should be provided to the power network 90, based on the amount of power resource that each of the batteries 12 can provide to the power network 90 and the amount of power resource that needs to be provided to the power network 90. In response to receiving a first request within a period in which power resources should be provided to the power network 90, the control unit 240 may perform at least one of a first control and a second control based on the amount of power resources that will be available to the power network 90 estimated by the estimation unit 220, and in response to receiving a second request within a period in which power resources should be provided to the power network 90, the control unit 240 may perform at least one of a third control and a fourth control based on the amount of power resources that will be available to the power network 90 estimated by the estimation unit 220.
[0040] In response to receiving a first request within a period in which power resources should be provided to the power network 90, the control unit 240 may perform at least one of a first control and a second control based on the amount of power resources that will be available to the power network 90 estimated by the estimation unit 220, and in response to receiving a second request within a period in which power resources should be provided to the power network 90, the control unit 240 may perform at least one of a third control and a fourth control based on the amount of power resources that will be available to the power network 90 estimated by the estimation unit 220.
[0041] The allocation unit 230 allocates whether each of the batteries 12 will provide power resources to the power network 90 through the first control or the second control in each of a plurality of time periods in the future based on the amount of power resources that each of the batteries 12 can provide to the power network 90 and the amount of power resources that need to be provided to the power network 90. In particular, the allocation unit 230 allocates whether each of the batteries 12 will provide power resources to the power network 90 through the first control or the second control in each of a plurality of time periods in the future based on the amount of power resources that each of the batteries 12 can provide to the power network 90 and the amount of power resources that need to be provided to the power network 90, giving priority to the first control over the second control.
[0042] The allocation unit 230 allocates power resources to the power network 90 only through the first control during each of a plurality of future time periods when (i) the total amount of power resources that the battery 12 can provide to the power network 90 through the first control is equal to or greater than the amount of power resources that need to be provided to the power network 90, and (ii) when the total amount of power resources that the battery 12 can provide to the power network 90 through the first control is less than the amount of power resources that need to be provided to the power network 90, the allocation unit 230 allocates power resources to be provided to the power network 90 by the first control during each time period by the second control. Specifically, in each of a plurality of time periods in the future, (i) when the total amount of power resources that the battery 12 can provide to the power network 90 through the first control estimated by the estimation unit 220 is equal to or greater than the amount of power resources that need to be provided to the power network 90, the allocation unit 230 allocates the power resources to be provided to the power network 90 only through the first control in each time period, and (ii) when the total amount of power resources that the battery 12 can provide to the power network 90 through the first control estimated by the estimation unit 220 is less than the amount of power resources that need to be provided to the power network 90, the allocation unit 230 allocates the power resources to be provided to the power network 90 that cannot be provided to the power network 90 through the first control in each time period through the second control.
[0043] The allocation unit 230 allocates whether each of the batteries 12 will provide the power resources to the power network 90 through the first control, the second control, the third control, or the fourth control in each of a plurality of time periods in the future, based on the amount of power resources that each of the batteries 12 can provide to the power network 90 and the amount of power resources that each of the batteries 12 needs to provide to the power network 90. For example, the allocation unit 230 may allocate the amount of power resources that each of the batteries 12 will provide to the power network 90 through at least one of the first control, the second control, the third control, and the fourth control in each of a plurality of time periods in the future.
[0044] When allocating whether each of the batteries 12 will provide power resources to the power network 90, the allocating unit 230 may allocate the fourth control with priority over the third control. The allocating unit 230 may allocate whether each of the batteries 12 will provide power resources to the power network 90 through the first control, the second control, the third control, or the fourth control in each of a plurality of future time periods so that a change in charging power or discharging power of the battery 12 is equal to or smaller than a predetermined value.
[0045] The classification unit 250 classifies each of the batteries 12 into batteries usable for both the first control and the second control and batteries usable for the first control but not for the second control based on at least one of the integrated value of the discharge power and the health degree of each of the batteries 12. The estimation unit 220 may estimate whether each of the batteries 12 can provide power resources to the power network 90 through the first control or the second control based on the classification result by the classification unit 250 and the predicted usage status of the batteries 12. The estimation unit 220 may estimate whether each of the batteries 12 can provide power resources to the power network 90 through the first control, the second control, the third control, or the fourth control based on the classification result by the classification unit 250 and the predicted usage status of the batteries 12.
[0046] The classification unit 250 may classify batteries 12 whose integrated value of discharge power exceeds a predetermined value as batteries usable for the first control but not used for the second control. The classification unit 250 may classify batteries 12 whose health state is lower than a predetermined value as batteries usable for the first control but not used for the second control. Based on the integrated value of the discharge power of each battery 12, the classification unit 250 may classify each battery 12 into batteries usable for both the first control and the second control and batteries usable for the first control but not used for the second control. The discharge power does not need to include power used for traveling of the vehicle 20.
[0047] When the predicted usage status of the battery 12 includes the predicted charging rate of the battery 12, the estimation unit 220 may estimate the amount of power resources that each of the batteries 12 can provide to the power network 90 by the third control such that the charging rate of each of the batteries 12 does not exceed a predetermined first value. The estimation unit 220 may estimate the amount of power resources that each of the batteries 12 can provide to the power network 90 by each of the first control, the second control, the third control, and the fourth control based on the predicted usage status of the battery 12 such that the charging rate of each of the batteries 12 does not exceed a predetermined value. When the predicted usage status of the battery 12 further includes a time period during which the battery 12 is predicted to be used, the estimation unit 220 may estimate the amount of power resources that can be provided to the power network 90 such that the charging rate of a battery that is not predicted to be used within a predetermined time does not exceed a predetermined first value, while allowing the charging rate of a battery that is predicted to be used within a predetermined time to exceed a predetermined first value.
[0048] When the predicted usage status of the battery 12 includes a predicted charging rate of the battery 12, the estimation unit 220 may estimate an amount of power resources that each of the batteries 12 can provide to the power network 90 by the second control such that the charging rate of each of the batteries 12 does not become lower than a predetermined second value. The second value may be lower than the first value. The charging decrease control corresponds to the first control, the power supply increase control corresponds to the second control, the charging increase control corresponds to the third control, and the power supply decrease control corresponds to the fourth control.
[0049] Fig. 3 is a graph showing a schematic diagram of a forecasted power 301 predicted to be consumed in a supply period and a target power 302. In this embodiment, the "supply period" refers to a period during which the amount of power contracted in the electricity market should be supplied. The supply period shown in Figs. 3 to 12 is assumed to be a period from time t1 to time t4.
[0050] The forecasted power 301 is an estimated value of the power demand generated under the management of the system 100. For example, the forecasted power 301 is a reference value of the power demand every 30 minutes used when trading in the power market. The target power 302 is determined by subtracting the amount of power contracted in the power market from the forecasted power 301. The target power 302 is the power consumption that the system 100 should be able to maintain in order to guarantee that the amount of power contracted in the power market is provided to the power network 90.
[0051] 4 is a graph that shows a schematic diagram of the estimated power 311 during the provision period. The estimated power 311 indicates an estimated value of the power consumption consumed by charging the battery 12 controlled by the system 100. The estimated power 311 may be estimated based on a future charging plan for the battery 12 during the provision period, a prediction of the vehicle 10 entering and leaving the station 30, a history of the amount of charge and discharge of the battery 12 for each time period in the past, and the like. The estimated power 311 is estimated by the estimation unit 220.
[0052] Fig. 5 is a graph that shows a schematic representation of the required power 331 that the system 100 needs to secure during the provision period. The required power 331 is calculated by subtracting the estimated power 311 from the target power 302. In Fig. 5, the vertical axis represents the power difference. When the required power is less than 0, as in the required power 331 in Fig. 5, it indicates that it may be necessary to reduce the power consumption in response to a lower demand. When the required power is more than 0, it indicates that it may be necessary to increase the power consumption in response to an increase demand.
[0053] The control unit 240 can adjust the future charge / discharge plan of the battery 12 so that the required power 331 can be provided, thereby providing the amount of power agreed upon in the power market to the power network 90 during the provision period.
[0054] When the control unit 240 receives a decrease demand for reducing power demand issued from the server 180 during a period when the required power is less than 0, the control unit 240 performs, in response to the decrease demand, one of a first control for decreasing the power consumed for charging the battery 12 and a second control for decreasing the overall power consumption by discharging the battery 12 and supplying the power to the outside of the vehicle 10. When the control unit 240 receives an increase demand for increasing the power demand issued from the server 180 during a period when the required power exceeds 0, the control unit 240 performs, in response to the increase demand, one of a third control for increasing the power consumed for charging the battery 12 and a fourth control for increasing the overall power consumption by decreasing the power supplied to the outside of the vehicle 10 by discharging the battery 12.
[0055] Fig. 6 is a diagram for explaining an example of a method for calculating the power resource that the vehicle 10 can provide. Here, a case is illustrated in which there is a time required for charging the battery 12a between the end time of the provision period and the predicted departure time of the vehicle 10a. In Figs. 6 to 12, the case is mainly explained in which the battery 12 of the vehicle 10 provides the power resource to the power network 90.
[0056] A line 601 of the graph 600 shows a change over time in the SOC based on a charge / discharge plan of the battery 12a of the vehicle 10a. A line 602 of the graph 600 shows an example of a change over time in the SOC of the battery 12a when the charge / discharge plan is modified to provide power resources within a provision period.
[0057] The first control not to charge the battery 12a can be performed in the entire time period from time t1 to t4. Similarly, the second control to discharge the battery 12a and supply power to the outside of the vehicle 10 can be performed in any of the time periods from time t1 to t4 so as not to cause the SOC to become excessively low. For example, if the first control is performed in the entire time period from time t1 to t4 and the second control is performed between time t1 and t2, the SOC change shown by the line 602 will be obtained. To correspond to the case of FIG. 5 in which the demand for lowering is particularly large in the time period from time t2 to time t3, the second control may be performed between t2 and t3 (not shown). Subsequently, by starting charging the battery 12a from time t4, it becomes possible to charge the battery 12a until the SOC of the battery 12a reaches the target SOC1 by the predicted departure time t5 of the vehicle 10a.
[0058] Graph 610 shows the power that can be provided from battery 12a in each time period. As described above, the reduction in the charge amount of battery 12a by the first control can be performed in all time periods from time t1 to t4. The second control may be performed in any time period from time t1 to t4, but in this example, as is clear from line 602, there is only one time period during which the control can be performed. When represented by rectangular frames on graph 610, all three frames can be selected for the first control, and one of the three frames can be selected for the second control. During the time period corresponding to this frame, power can be provided to meet the lowering demand.
[0059] Graph 620 shows the amount of power that can be provided from battery 12a. As described above, the first control can be executed during the entire time period from time t1 to time t4, and therefore can be expressed as three slots of power resources. In this example, the second control is expressed as one slot of power resources.
[0060] Graph 660 shows the power that can be provided from station 30a in each time period. Graph 670 shows the amount of power that can be provided from station 30a. Since only one vehicle 10a can be connected to station 30a, graph 660 is the same as graph 610, and graph 670 is the same as graph 620.
[0061] 7 is a diagram for explaining another example of a method for calculating the power resources that can be provided by vehicle 10. Here, a case is shown in which vehicle 10b is predicted to leave station 30b at time t3 during the provision period, and vehicle 10c is predicted to enter station 30b at time t2 during the provision period.
[0062] A line 701 of the graph 700 indicates a change over time in the SOC based on a charge / discharge plan of the battery 12b of the vehicle 10b. A line 702 of the graph 700 indicates a change over time in the SOC of the battery 12b when the charge / discharge plan is modified to provide power resources within the provision period. Here, the charge / discharge plan is set so that charging of the battery 12b is scheduled to start before time t1.
[0063] In response to this, as shown by the line 702, charging of the battery 12b is started from time t1, and the third control is performed from time t2 to time t3 to charge the battery 12b. This makes it possible to increase the amount of charge from time t2 to t3. This makes it possible for the battery 12b to provide power in response to the increased demand.
[0064] Graph 710 shows the power that can be provided from battery 12b in each time period. As described above, by performing the third control between time t2 and time t3, it becomes possible to provide power in response to the upward demand. Therefore, as shown in graph 710, by performing the third control, it becomes possible to provide a certain amount of power in response to the upward demand.
[0065] A graph 720 shows the amount of power that can be provided from the battery 12b. As described above, by performing the third control from time t2 to time t3, a certain amount of power for responding to the upward demand can be provided from the battery 12b.
[0066] A line 731 of the graph 730 indicates a change over time in the SOC based on a charge / discharge plan of the battery 12c of the vehicle 10c. A line 732 of the graph 730 indicates a change over time in the SOC of the battery 12c when the charge / discharge plan is modified to provide power resources within the provision period. Here, the charge / discharge plan is set so that charging of the battery 12b is scheduled to start from the arrival time t2 of the vehicle 10c.
[0067] In contrast, as shown by line 732, by performing a first control to prevent the battery 12c from being charged between times t2 and t3 and performing a second control to discharge the battery 12c and supply power to the outside of the vehicle 10, it becomes possible to provide power from the battery 12c in response to the lowering demand between times t2 and t3. By performing a first control to prevent the battery 12c from being charged between the following times t3 and t4, it becomes possible to provide power in response to the lowering demand between times t3 and t4. By subsequently starting charging the battery 12c from time t4, the battery 12c of the vehicle 10c is promptly charged until its SOC reaches the target SOC1.
[0068] The graph 740 shows the power that can be provided from the battery 12c in each time period. As described above, by performing the second control between times t2 and t3, it is possible to provide power that responds to the lowering demand. Similarly, the second control may be performed between times t3 and t4. In this manner, the second control can be performed at any time during a certain period between times t2 and t4. The graph 740 illustrates an example of a time period during which the second control can be performed. Furthermore, by reducing the charge amount of the battery 12c by the first control between times t2 and t4 as described above, it is possible to provide power that responds to the lowering demand, compared to the charge / discharge plan represented by the line 731.
[0069] The graph 750 shows the amount of power that can be provided from the battery 12c. As described above, by performing the second control for a certain period between times t2 and t4, it becomes possible to provide a certain amount of power to respond to the down demand. Furthermore, by performing the first control between times t2 and t4 as described above, it becomes possible to provide an amount of power to respond to the down demand, as shown in the graph 750. As shown in the graph 750, the amount of power that can be provided by performing the first control is the amount of power obtained by accumulating the charging power that is reduced between times t2 and t4.
[0070] Graph 760 shows the power that can be provided from station 30b in each time period. Graph 770 shows the amount of power that can be provided from station 30b. Graph 760 is the sum of graphs 710 and 740. Graph 770 is the sum of graphs 720 and 750.
[0071] 8 is a diagram for explaining another example of a method for calculating the power resources that the vehicle 10 can provide. Here, it is assumed that the battery 12d of the vehicle 10d is not scheduled to be charged or discharged during the provision period, and that timer charging of the battery 12d is scheduled to be performed between times t5 and t6. It is assumed that the vehicle 10e is scheduled to supply power to the facility 44 between times t2 and t4.
[0072] A line 801 of the graph 800 shows the change over time of the SOC based on the charge and discharge plan of the battery 12d of the vehicle 10d. A line 802 of the graph 800 shows the change over time of the SOC of the battery 12d when the charge and discharge plan is modified to provide power resources for the first request within the provision period. A line 803 of the graph 800 shows the change over time of the SOC of the battery 12d when the charge and discharge plan is modified to provide power resources for the second request within the provision period.
[0073] As shown by line 802, charging of battery 12d is started before time t1, the second control is performed between times t1 and t3 to discharge battery 12d, charging and discharging of battery 12d are not performed between times t3 and t4, and charging of battery 12d is started from time t4 when the supply period ends. This makes it possible to increase the amount of power supplied from battery 12d to the outside of vehicle 10d between times t1 and t3. This makes it possible to provide power from battery 12d in response to the down demand.
[0074] As shown by line 803, discharging of the battery 12d is started before time t1, and the third control is performed between times t1 and t4, so that the battery 12d is charged until the SOC of the battery 12d reaches the target SOC1. This makes it possible to increase the charge amount of the battery 12d between times t1 and t4. This makes it possible to provide power from the battery 12d in response to the increasing demand.
[0075] The graph 810 shows the power that can be provided from the battery 12d in each time period. When the control shown by the line 802 is performed as described above, the second control is performed in the two-frame period from time t1 to t3, thereby making it possible to provide power in response to the lowering demand. The second control can also be performed in the two-frame period from time t2 to t4. In this way, the second control can be performed in any two-frame period out of the three-frame period from time t1 to t4. Furthermore, when the control shown by the line 803 is performed, the third control is performed in the three-frame period from time t1 to t4, thereby making it possible to provide power in response to the increasing demand. Thus, as shown in the graph 810, the second control makes it possible to provide a certain amount of power in response to the lowering demand, and the third control makes it possible to provide power in response to the increasing demand.
[0076] Graph 820 shows the amount of power that can be provided from battery 12d. As described above, by performing the second control within a certain period between times t1 and t4, the battery 12d can provide an amount of power to respond to a lowering demand. Furthermore, by performing the third control from time t1 to time t4, a certain amount of power can be provided in response to an increasing demand. As shown in graph 820, the amount of power that can be provided by performing the third control is the amount of power obtained by accumulating the charging power from time t1 to t4. Moreover, the amount of power that can be provided by performing the second control is the amount of power obtained by accumulating the feeding power supplied during the certain period during which the second control is performed from time t1 to t4.
[0077] A line 831 of the graph 830 shows a change over time in the SOC based on a charge / discharge plan of the battery 12e of the vehicle 10e. As shown by the line 831, the battery 12e is scheduled to be discharged to supply power to the facility 44 between times t2 and t4. A line 832 of the graph 830 shows a change over time in the SOC of the battery 12c when the charge / discharge plan is modified to provide power resources within the provision period. A line 833 of the graph 830 shows a change over time in the SOC of the battery 12e when the charge / discharge plan is modified in a different manner to provide power resources within the provision period.
[0078] As shown by the line 832, the battery 12e is discharged before time t1, and the third control is performed between times t1 and t2 to charge the battery 12e. This allows the amount of charge to be increased between times t1 and t2. This makes it possible to provide power from the battery 12e in response to the up-demand. In addition, the fourth control is performed between times t2 and t4 to prevent power supply to the facility 44, making it possible to provide power from the battery 12e in response to the up-demand.
[0079] As another aspect of the control, the amount of power supplied from the battery 12e can be increased by performing the second control from time t1 to t2 by discharging the battery 12e from time t1 to t4 as shown by the line 833. This makes it possible to provide power from the battery 12e in response to the downward demand.
[0080] The graph 840 shows the power that can be provided from the battery 12e in each time period. As described above, by performing the third control between times t1 and t2, it is possible to provide power in response to the upward demand. Similarly, the third control can also be performed between times t2 and t3 or between times t3 and t4. Therefore, the third control can be performed in any of the fixed periods between times t1 and t4. Therefore, as shown in the graph 840, by performing the third control, it is possible to provide a fixed amount of power in response to the upward demand between times t1 and t4. Furthermore, by reducing the amount of power supplied from the battery 12e by the fourth control between times t2 and t4 as described above, it is possible to provide power in response to the upward demand compared to the charge / discharge plan represented by the line 831.
[0081] The graph 850 shows the amount of power that can be provided from the battery 12e. By performing the third control during a certain period between times t1 and t4 as described above, it is possible to provide a certain amount of power to respond to the increasing demand. Furthermore, by performing the fourth control during times t2 and t4 as described above, it is possible to provide an amount of power to respond to the increasing demand as shown in the graph 850. As shown in the graph 850, the amount of power that can be provided by performing the fourth control is the amount of power obtained by accumulating the charging power reduced during times t2 and t4. Furthermore, by performing the second control during times t1 and t2 as described above, it is possible to provide an amount of power to respond to the decreasing demand.
[0082] Graph 860 shows the power that can be provided from station 30c in each time period. Graph 870 shows the amount of power that can be provided from station 30c. Graph 860 is the sum of graphs 810 and 840. Graph 870 is the sum of graphs 820 and 850.
[0083] The estimation unit 220 may estimate the time when the vehicle 10 leaves the station 30 and the time when the vehicle 10 enters the station 30 based on the past driving history of the vehicle 10 and the action plan input by the user. The estimation unit 220 may estimate the SOC of the battery 12 when the vehicle 10 enters and the SOC of the battery 12 when the vehicle 10 leaves, based on the past charging and discharging history of the battery 12 and the driving history of the vehicle 10. The estimation unit 220 may estimate the power and amount of power that each of the batteries 12 can provide, on the condition that the SOC of the battery 12 can reach a target SOC when the vehicle 10 leaves.
[0084] The acquisition unit 210 may acquire preference information indicating whether or not a user of the vehicle 10 desires the battery 12 to provide power in response to a demand. The estimation unit 220 may estimate the power and amount of power that the battery 12 can provide based on the preference information. For example, the estimation unit 220 may exclude the battery 12 of the vehicle 10 associated with a user who does not desire the battery 12 to provide power in response to a demand from the battery 12 that will respond to a demand.
[0085] The acquisition unit 210 may acquire specification information of the battery 12 and the station 30. The specification information may include information indicating the power that the battery 12 can charge and discharge, information indicating whether or not the battery 12 can discharge to the vehicle 10, information indicating the power that the station 30 can charge and discharge, information indicating whether or not the station 30 can supply power from the battery 12 to the power network 90, and the like. The estimation unit 220 may estimate the power and amount of power that the battery 12 can provide within the range of the specifications of the battery 12 and the station 30 based on the specification information.
[0086] The acquisition unit 210 may acquire status information of the battery 12. The status information may include information indicating the degree of degradation of the battery 12, the capacity of the battery 12, and the temperature dependency of the output power. The estimation unit 220 may estimate the power and amount of power that the battery 12 can provide based on the status information of the battery 12. For example, the estimation unit 220 may give priority to a battery 12 with a lower degree of degradation and select it as a battery 12 that can respond to a demand. The estimation unit 220 may exclude a battery 12 with a degree of degradation lower than a predetermined value from the batteries 12 that are to respond to a demand.
[0087] In order to suppress the progression of deterioration of the battery 12 and the station 30 that may occur by making the battery 12 respond to the demand, the estimation unit 220 may estimate the power and amount of power that the battery 12 can provide by setting constraints on the upper and lower limits of the SOC of the battery 12 and the charge / discharge amount. The estimation unit 220 may determine whether or not to make the battery 12 of the vehicle 10 respond to the demand based on the electricity fee that may be incurred by charging the battery 12 and the reward that the user associated with the vehicle 10 can obtain by responding to the demand, taking into account the financial benefit of the user of the vehicle 10. For example, the estimation unit 220 may determine not to make the battery 12 respond to the demand when the electricity fee is higher than the reward.
[0088] 9 is a schematic diagram showing the total power and the total amount of power that can be provided from all stations 30. Graph 960 shows the total power that can be provided from all stations 30 in each time period. Graph 970 shows the total amount of power that can be provided from stations 30. Graph 960 is the sum of graphs 660, 760, and 860. Graph 970 is the sum of graphs 670, 870, and 870.
[0089] The power for each time period that the system 100 needs to secure in order to respond to the demand during the supply period is shown as required power 331 in Fig. 5. As shown in Fig. 9, the allocation unit 230 allocates the total provideable power shown in Fig. 9 to the required power 331 so that the required power 331 can be provided. Specifically, the allocation unit 230 allocates which station 30 will provide the required power 331 and which battery 12 will provide the required power 331.
[0090] Fig. 10 is a schematic diagram showing an example of power resources allocated by allocation unit 230 to required power 331. In the example of required power 331 shown in Fig. 5, there is no time period for responding to the second request. Therefore, the allocation of power resources for responding to the first request will be described here.
[0091] The allocation unit 230 judges whether or not the total amount of power resources that can be provided from the battery 12 by the first control is equal to or greater than the amount of power resources necessary to provide the required power 331 for each time period. As shown in FIG. 9, in the time period from time t1 to t3, the total amount of power resources that can be provided from the battery 12 by the first control is less than the amount of power resources necessary to provide the required power 331. Therefore, the allocation unit 230 needs to allocate power resources by both the first control and the second control in the time period from time t1 to t3. In this case, the allocation unit 230 allocates the first control with priority over the second control. Specifically, the allocation unit 230 allocates all power resources that can be provided from the battery 12 by the first control in the time period from time t1 to t3, and allocates the power resources that cannot be provided by the first control by the second control.
[0092] On the other hand, in the time slot from time t3 to t4, the total amount of power resources that can be provided from battery 12 under the first control is equal to or greater than the amount of required power 331. Therefore, in the time slot from time t3 to t4, allocation unit 230 performs allocation so as to provide power resources only under the first control.
[0093] Fig. 11 is a schematic diagram for explaining power resources allocated to the battery 12a. Fig. 12 is a schematic diagram for explaining power resources allocated to the battery 12b and the battery 12c. Fig. 13 is a schematic diagram for explaining power resources allocated to the battery 12d and the battery 12e.
[0094] As shown in Figures 11 to 13, the allocation unit 230 allocates power resources so as to provide all of the power resources that can be provided by the first control from battery 12a at least during the time period from time t1 to t4, and allocates power resources so as to provide all of the power resources that can be provided by the first control from battery 12c during the time period from time t2 to t4.
[0095] 13, the allocation unit 230 allocates power resources such that the power resources that cannot be provided by the first control in the time slot from time t1 to t3 are provided by the second control from the batteries 12d and 12e. Specifically, the batteries 12 that can provide power resources by the second control in the time slot from time t1 to t2 are the batteries 12a, 12d, and 12e. However, since the battery 12a has already been allocated to provide power resources by the first control in the time slot from time t1 to t2, the allocation unit 230 excludes the battery 12a from the batteries 12 that provide power resources by the second control in the time slot from time t1 to t2.
[0096] Therefore, the allocation unit 230 determines that the battery 12d and / or the battery 12e provides the power resource by the second control in the time period from time t1 to t3. Since the battery 12d is the only battery capable of providing the power resource in the time period from time t2 to t3, the allocation unit 230 allocates the power resource such that the one battery 12d of the battery 12d and the battery 12e provides the power resource by the second control in the time period from time t2 to t3. In response to this, the allocation unit 230 determines the allocation of the power resource such that the other battery 12e of the battery 12d and the battery 12e provides the power resource by the second control in the time period from time t1 to t2. This allows the allocation of the power resource to be performed so that the battery 12d does not provide the power resource over consecutive time periods.
[0097] As described in relation to FIGS. 10 to 13, the allocation unit 230 can distribute the batteries 12 that provide the power resources within the provision period while prioritizing the allocation of power resources under the first control over the second control.
[0098] Fig. 14 is a graph for explaining the control for suppressing the provision of power resources by the second control. The horizontal axis of the graph in Fig. 14 represents the elapsed time from the time when the use of the vehicle 10 started, and the vertical axis represents the integrated value of the discharged power of the battery 12.
[0099] The classification unit 250 classifies batteries into batteries that can be used for both the first control and the second control and batteries that can be used for the first control but not for the second control based on the integrated value of the discharge power of the battery 12. The "discharge power" does not include, among the discharge power from the battery 12, power that has been used for the running of the vehicle 10. Specifically, the "discharge power" includes, among the discharge power from the battery 12, power that has been discharged during a period in which power supply by the second control or the fourth control is being performed, and does not include power that has been used for the running of the vehicle 10. As an example, the "discharge power" may include only the power supplied from the battery 12 to the power network 90.
[0100] The classification unit 250 classifies the batteries 12 whose integrated value of discharge power does not exceed a predetermined threshold into batteries usable for the first control and the second control, and classifies the batteries 12 whose integrated value of discharge power is equal to or greater than a predetermined threshold into batteries usable for the first control but not for the second control. A line 1400 shown in Fig. 14 indicates the threshold. In the example of Fig. 14, the threshold is a fixed value.
[0101] A line 1450 shown in Fig. 14 indicates the time evolution of the integrated value of the discharge power from the battery 12a included in the vehicle 10a. In the example of Fig. 14, after the use of the vehicle 10a is started, the integrated value of the discharge power of the battery 12a reaches a threshold value at time t1401. In this case, the classification unit 250 classifies the battery 12a as a battery that can be used for the first control and the second control during the period from the start of use of the vehicle 10a to time t1401, and classifies the battery 12a as a battery that can be used for the first control but not for the second control during the period after time t1401.
[0102] Fig. 15 is another graph for explaining the control for suppressing the provision of power resources by the second control. The horizontal axis of the graph in Fig. 15 represents the elapsed time from the time when the use of the vehicle 10 started, and the vertical axis represents the integrated value of the discharged power of the battery 12.
[0103] A line 1550 shown in Fig. 15 indicates the time evolution of the integrated value of the discharge power from the battery 12a. Lines 1500 and 1510 shown in Fig. 15 indicate thresholds used by the classification unit 250 to classify the battery 12. The line 1500 indicates a first threshold, and the line 1510 indicates a second threshold lower than the first threshold. In the example shown in Fig. 15, the first threshold and the second threshold change according to the usage time of the vehicle 10. Specifically, the first threshold and the second threshold increase with the passage of time during at least a part of the useful life of the vehicle 10.
[0104] 15 is a reference value of discharge power from the start of use of the vehicle 10 until the end of the useful life of the vehicle 10. The reference value changes according to the time of use of the vehicle 10. Specifically, the reference value increases with the passage of time during at least a portion of the period until the end of the useful life of the vehicle 10. The first threshold value is set higher than the reference value, and the second threshold value is set lower than the reference value.
[0105] 15, after the use of the vehicle 10a is started, the integrated value of the discharge power of the battery 12a reaches the first threshold at time t1501. In this case, the classification unit 250 classifies the battery 12a as a battery available for the first control and the second control during the period from the start of use of the vehicle 10a to time t1501, and classifies the battery 12a as a battery available for the first control but not for the second control from time t1501. As a result, the battery 12a is no longer used for the second control, and the integrated value of the discharge power of the battery 12a becomes constant during the period from time t1501 until the integrated value of the discharge power of the battery 12a reaches the second threshold.
[0106] When the integrated value of the discharge power of the battery 12a reaches the second threshold at time t1502, the classification unit 250 classifies the battery 12a as a battery available for the first control and the second control from time t1501. As a result, the battery 12a becomes available for the second control, and the integrated value of the discharge power of the battery 12a may increase from time t1502.
[0107] As shown in Fig. 15, by setting the first threshold value and the second threshold value according to the usage time of the vehicle 10, it is possible to prevent the integrated value of the discharge power of the battery 12 from deviating from the reference value until the usage time of the vehicle 10 reaches the useful life. This makes it possible to prevent the integrated value of the discharge power of the battery 12 from increasing too much before the usage time of the vehicle 10 reaches the useful life. Therefore, it is possible to prevent the deterioration of the battery 12 from progressing more than necessary until the useful life of the vehicle 10 has elapsed. This makes it possible to use the battery 12 to supply power to the power network 90 within a range where the deterioration of the battery 12 does not progress more than necessary while ensuring that the vehicle 10 travels a distance equal to or greater than a predetermined distance until the useful life of the vehicle 10 has elapsed.
[0108] Fig. 16 is a diagram for explaining an example of a method for calculating the power resources that the vehicle 10a can provide, taking into consideration the integrated value of the discharged power. Fig. 16 is a diagram corresponding to Fig. 6. That is, Fig. 16 shows a case where the integrated value of the discharged power of the battery 12a included in the vehicle 10a reaches a threshold value, and the battery 12a is classified by the classification unit 250 as a battery that can be used for the first control but cannot be used for the second control. Here, differences from Fig. 6 will be explained.
[0109] Since the classification unit 250 classifies the battery 12a as a battery not used in the second control, the estimation unit 220 determines that the battery 12a does not provide power resources through the second control, but can provide power resources only through the first control. A graph 1610 shows the power that can be provided from the battery 12a in each time period. The "x" mark on the graph 1610 indicates that the estimation unit 220 determines that the battery 12a cannot provide power resources through the second control based on the classification result of the classification unit 250. As a result, the amount of power that can be provided from the battery 12a is only the amount of power through the first control, as shown in a graph 1620.
[0110] A graph 1620 shows the amount of power that can be provided from the battery 12a. The first control can be executed during the entire time period from time t1 to time t4, and is therefore expressed as three slots of power resources. On the other hand, no power resources are provided by the second control.
[0111] Graph 1660 shows the power that can be provided from station 30a in each time period. Graph 1670 shows the amount of power that can be provided from station 30a. Because only one vehicle 10a can be connected to station 30a, graph 1660 is the same as graph 1610, and graph 1670 is the same as graph 1620.
[0112] In relation to Figs. 14 to 16, a case has been described in which the classification unit 250 classifies the battery 12 according to the integrated value of the discharge power of the battery 12. However, the integrated value of the discharge power of the battery 12 is an example of an index of the deterioration degree of the battery 12. The health degree of the battery 12 can be adopted as an index of the deterioration degree of the battery 12. For example, the classification unit 250 may classify the battery 12 according to the SOH (State of Health) instead of or in addition to the integrated value of the discharge power of the battery 12. For example, when the SOH of the battery 12 is equal to or greater than a predetermined value, the classification unit 250 may classify the battery 12 as a battery that can be used for both the first control and the second control, and when the SOH of the battery 12 is equal to or less than a predetermined value, the classification unit 250 may classify the battery 12 as a battery that can be used for the first control but not for the second control.
[0113] 14 to 16, whether or not to use the battery 12 for the second control can be switched depending on the integrated value of the discharge power of the battery 12, so that the battery 12 can be used to provide power resources to the power network 90 while preventing the deterioration of the battery 12 from progressing more than necessary. This makes it possible to maintain the value of the battery 12 while enjoying the benefits obtained by the battery 12 providing power resources to the power network 90.
[0114] 17 is a diagram for explaining control according to the SOC for the battery 12 to provide power resources. The estimation unit 220 switches the control for the battery 12 to provide power resources according to the range to which the SOC of the battery 12 belongs.
[0115] Specifically, the estimation unit 220 classifies the batteries 12 into groups A to D. As an example, group A is the batteries 12 with an SOC of 91% or more and 100% or less. group B is the batteries 12 with an SOC of 61% or more and 90% or less. group C is the batteries 12 with an SOC of 40% or more and 60% or less. group D is the batteries 12 with an SOC of 0% or more and 39% or less.
[0116] The batteries 12 belonging to group A are batteries that can be used for driving the vehicle 10. The estimation unit 220 considers the batteries 12 belonging to group A as being capable of providing power resources through the second control in response to the first request.
[0117] The estimation unit 220 considers the battery 12 belonging to group B to be capable of providing power resources by the second control in response to the first request. The estimation unit 220 considers the battery 12 belonging to group B to be capable of providing power resources by the third control in response to the second request when a predetermined condition is satisfied. Specifically, the estimation unit 220 considers the battery 12 belonging to group B to be capable of providing power resources by the third control in response to the second request, on condition that the SOC does not exceed 90%. The estimation unit 220 considers the battery 12 belonging to group B to be capable of providing power resources by the third control in response to the second request, even if the SOC exceeds 90%, on condition that the vehicle 10 is predicted to leave the station 30 within a predetermined time from the current time.
[0118] In this way, the estimation unit 220 estimates the amount of power resources that each of the batteries 12 can provide to the power network 90 by the third control so that the SOC of each of the batteries 12 does not exceed 90%. In particular, the estimation unit 220 estimates the amount of power resources that can be provided to the power network 90 so that the SOC of the battery 12 that is not expected to be used within a predetermined time does not exceed 90% while allowing the SOC of the battery 12 that is predicted to be used within a predetermined time to exceed 90%. This makes it possible to use the battery 12 to provide power resources to the power network 90 while suppressing the deterioration of the battery 12 from progressing more than necessary. In particular, when the battery 12 is predicted to be used for driving the vehicle 10 within a predetermined time, by allowing the provision of power resources by the third control even if the SOC exceeds 90%, it is possible to prevent the battery 12 from being left in a high SOC state for a long period of time. This makes it possible to prevent the SOC of the battery 12 from becoming insufficient when the vehicle 10 is used while suppressing the deterioration of the battery 12.
[0119] The estimation unit 220 considers the battery 12 belonging to group C as capable of providing power resources through the third control or the like in response to the first request and / or the second request. However, the estimation unit 220 considers the battery 12 belonging to group C as capable of providing power resources through the second control in response to the first request when a predetermined condition is satisfied. Specifically, the estimation unit 220 considers the battery 12 belonging to group C as capable of providing power resources through the second control in response to the first request, on condition that the SOC does not fall below 40%. This allows the estimation unit 220 to estimate the amount of power resources that the battery 12 can provide to the power network 90 through the second control so that the charging rate of the battery 12 does not fall below 40%.
[0120] The estimation unit 220 considers the batteries 12 belonging to group D as capable of providing power resources through the third control in response to the second request. The batteries 12 belonging to group D are not used as batteries for providing power resources in response to the first request.
[0121] Fig. 18 is a diagram for explaining an example of a method for calculating the power resources that can be provided by the vehicles 10d and 10e in consideration of the integrated value of the discharged power. Fig. 18 is a diagram corresponding to Fig. 8. Specifically, Fig. 18 shows a case where the SOC of the battery 12d of the vehicle 10d may exceed 90% due to the third control, and the SOC of the battery 12e of the vehicle 10e may fall below 40% due to the second control. Here, differences from Fig. 8 will be explained.
[0122] Graph 810 shows the power that can be provided from battery 12d in each time period. As described in relation to FIG. 8, battery 12d can be provided with the third control performed between times t1 and t4. Here, when it is determined that the SOC exceeds 90% by performing the third control for three frames on battery 12d, estimation unit 220 allows the third control to be performed for up to two frames on battery 12d. In other words, the third control is allowed for any two frames within the period from time t1 to t4.
[0123] Graph 1820 shows the amount of power that can be provided from battery 12d. The "x" mark on graph 1820 indicates that estimation unit 220 considers battery 12d to be unable to provide power resources through the third control. As a result, as shown in graph 1820, the amount of power that can be provided from battery 12d through the third control is two slots of power.
[0124] Graph 1840 shows the power that can be provided from battery 12e in each time period. As described in relation to FIG. 8, battery 12e can perform the third control between times t1 and t4, and can perform the fourth control between times t2 and t4. Here, if it is determined that the SOC would be less than 40% by performing the second control between times t1 and t2, the estimation unit 220 considers that the second control cannot be performed on battery 12e. The "x" mark on graph 1840 indicates that the estimation unit 220 considers that battery 12e cannot provide power resources by the second control.
[0125] Graph 1850 shows the amount of power that can be provided from battery 12e. As shown in graph 1850, it is determined that battery 12e can provide one slot of power through the third control, and battery 12e can provide two slots of power through the fourth control. On the other hand, estimation unit 220 determines that battery 12e cannot provide power through the second control.
[0126] Graph 1860 shows the power that can be provided from station 30c in each time period. Graph 1870 shows the amount of power that can be provided from station 30c. Graph 1860 is the sum of graphs 810 and 1840. Graph 1870 is the sum of graphs 1820 and 1850.
[0127] As described in relation to Fig. 17 to Fig. 18 etc., the estimation unit 220 estimates the amount of power resources that can be provided to the power network 90 by the third control so that the charging rate of the battery 12 does not exceed a predetermined value. Furthermore, the estimation unit 220 estimates the amount of power resources that can be provided to the power network 90 by the second control so that the charging rate of the battery 12 does not become lower than a predetermined value. This makes it possible to use the battery 12 to provide power resources to the power network 90 while preventing the deterioration of the battery 12 from progressing more than necessary. This makes it possible to maintain the value of the battery 12 while enjoying the benefits that are obtained by the battery 12 providing power resources to the power network 90.
[0128] Fig. 19 shows an example of the change over time in power consumption due to the control of the station 30. In Fig. 19, the provision period is from time t3 to time t5.
[0129] At time t1, the allocation unit 230 allocates which station 30 and battery 12 will provide the required power during the supply period. The allocation unit 230 may perform the allocation at a timing that is a predetermined time before the start time of the supply period. The allocation unit 230 may perform the allocation at a predetermined time before the start time of the supply period on a day that includes the supply period.
[0130] At time t2 prior to the start time of the provision period, the control unit 240 controls in advance the charging and discharging of the battery 12 so that the battery 12 can provide the required power during the provision period. For example, when there is a possibility that the power consumption will be reduced in response to a down demand during the provision period, the control unit 240 causes the battery 12 to be charged in advance. The control of charging the battery 12 prior to the start time of the provision period as shown by line 802 in Fig. 8 is included in advance control.
[0131] During the supply period, the control unit 240 controls the charging and discharging of the battery 12 by controlling the station 30 in response to the demand. At this time, the control unit 240 controls the charging and discharging of the battery 12 according to the execution result of the allocation by the allocation unit 230. When the power consumption increases as a result of an unexpected entry and exit of the vehicle 10 at time t4, the control unit 240 selects a battery 12 capable of providing power corresponding to the increased power consumption from among the batteries 12 not allocated by the allocation unit 230 as a battery 12 that provides the required power, and performs the first control or the second control on the selected battery 12 to cause it to provide power corresponding to the increased power consumption.
[0132] When the provision period ends at time t5, the control unit 240 controls charging and discharging of the battery 12 to recover the necessary power provided by the battery 12 during the provision period. For example, if the control unit 240 lowers the power consumption in response to a lowering demand during the provision period, the control unit 240 causes the battery 12 to be charged after the provision period. For example, the control unit 240 causes the battery 12 to be charged before the start time of the provision period, as shown by line 802 in FIG. 8. The control of charging the battery 12 after the provision period, as shown by line 602 in FIG. 6, is included in ex-post control. At this time, it is desirable for the control unit 240 to control the charging and discharging of the battery 12 so that the time change in power consumption after the provision period becomes less than a predetermined value.
[0133] FIG. 20 is a flowchart showing the procedure of the process executed by the system 100. In S1402, the estimation unit 220 determines the bid amount for the electricity market. For example, the estimation unit 220 estimates the available power and amount of power using a prediction model for estimating the available power and amount of power in response to a demand, and determines the bid amount based on the estimated power and amount of power. The prediction model may be a model generated in advance based on the past charge and discharge history of the battery 12. For example, the prediction model may be a model generated by machine learning using the available power and amount of power for each time period calculated based on the past charge and discharge history of the battery 12. The prediction model may be a model that inputs time information and outputs an estimated value of the available power and amount of power at the time period indicated by the input time information. The input of the prediction model may include any one of day of the week information, weekday and holiday distinction information, season information, and time period information. The input of the prediction model may further include at least one of temperature information and weather information.
[0134] In S1404, the estimation unit 220 estimates the required power. For example, as described in relation to Fig. 3, the estimation unit 220 may calculate a target power based on the power contracted in the power market, and estimate the required power from the difference between the target power and the estimated power.
[0135] In S1406, the estimation unit 220 estimates the power that can be provided by the station 30 and the battery 12. For example, the estimation unit 220 estimates the power and the amount of power that can be provided by each of the station 30 and the battery 12 through the first control, the power and the amount of power that can be provided by the second control, the power and the amount of power that can be provided by the third control, and the power and the amount of power that can be provided by the fourth control, using the method described in relation to Figs. 6 to 8.
[0136] In S1408, the allocation unit 230 allocates the stations 30 and the batteries 12 that provide the required power. For example, the allocation unit 230 allocates the stations 30 and the batteries 12 that provide the required power using the methods described in relation to Figures 9 to 13, 16, and 18. In S1410, the control unit 240 controls charging and discharging of the battery 12 based on the allocation result in S1408 and the demand.
[0137] As described above, the system 100 can estimate the power and amount of power that each of the batteries 12 can provide with high accuracy by considering the predicted usage of the vehicle 10 and the battery 12. Furthermore, the system 100 can allocate the batteries 12 that provide power according to the demand based on the power and amount of power that each of the batteries 12 can provide, and can allocate the power and amount of power that each of the batteries 12 should provide for each of the batteries 12. Conventionally, since the time periods during which the batteries mounted on the mobile body are disconnected from the power network 90 may occur irregularly, it is not easy to predict in advance the amount of power that can be provided by the batteries mounted on the mobile body. Therefore, in order to use the batteries mounted on the mobile body for adjusting the power supply and demand of the power network 90, it was necessary to secure more batteries as spares. In contrast, according to the control of the system 100 described above, it is possible to provide more power to the power network 90 using a smaller number of batteries 12.
[0138] 21 shows an example of a computer 2000 in which multiple embodiments of the present invention may be embodied in whole or in part. A program installed in the computer 2000 may cause the computer 2000 to function as a system or each part of a system according to an embodiment, or an apparatus such as various control devices or each part of the apparatus, to execute operations associated with the system or each part of the system or the apparatus or each part of the apparatus, and / or to execute a process or steps of the process according to an embodiment. Such a program may be executed by the CPU 2012 to cause the computer 2000 to execute specific operations associated with some or all of the blocks of the process procedures and block diagrams described herein.
[0139] The computer 2000 according to this embodiment includes a CPU 2012 and a RAM 2014, which are connected to each other by a host controller 2010. The computer 2000 also includes a ROM 2026, a flash memory 2024, a communication interface 2022, and an input / output chip 2040. The ROM 2026, the flash memory 2024, the communication interface 2022, and the input / output chip 2040 are connected to the host controller 2010 via the input / output controller 2020.
[0140] The CPU 2012 operates according to programs stored in the ROM 2026 and RAM 2014, thereby controlling each unit.
[0141] The communication interface 2022 communicates with other electronic devices via a network. The flash memory 2024 stores programs and data used by the CPU 2012 in the computer 2000. The ROM 2026 stores a boot program and the like executed by the computer 2000 upon activation, and / or a program that depends on the hardware of the computer 2000. The input / output chip 2040 may also connect various input / output units, such as a keyboard, mouse, and monitor, to the input / output controller 2020 via input / output ports, such as a serial port, a parallel port, a keyboard port, a mouse port, a monitor port, a USB port, an HDMI port, and the like.
[0142] The programs are provided via a computer-readable storage medium such as a CD-ROM, a DVD-ROM, or a memory card, or a network. The RAM 2014, the ROM 2026, or the flash memory 2024 are examples of computer-readable storage media. The programs are installed in the flash memory 2024, the RAM 2014, or the ROM 2026, and executed by the CPU 2012. Information processing described in these programs is read by the computer 2000, and brings about cooperation between the programs and the various types of hardware resources described above. An apparatus or method may be constructed by implementing an operation or processing of information according to the use of the computer 2000.
[0143] For example, when communication is performed between the computer 2000 and an external device, the CPU 2012 may execute a communication program loaded in the RAM 2014 and instruct the communication interface 2022 to perform communication processing based on the processing described in the communication program. Under the control of the CPU 2012, the communication interface 2022 reads transmission data stored in a transmission buffer processing area provided in a recording medium such as the RAM 2014 and the flash memory 2024, transmits the read transmission data to a network, and writes reception data received from the network to a reception buffer processing area or the like provided on the recording medium.
[0144] Furthermore, the CPU 2012 may cause all or a necessary portion of a file or database stored on a recording medium such as the flash memory 2024 to be read into the RAM 2014, and perform various types of processing on the data on the RAM 2014. The CPU 2012 then writes back the processed data to the recording medium.
[0145] Various types of information, such as various types of programs, data, tables, and databases, may be stored in the recording medium and subjected to information processing. The CPU 2012 may execute various types of processing, including various types of operations, information processing, conditional judgment, conditional branching, unconditional branching, information search / replacement, etc., described herein and specified by the instruction sequence of the program, on the data read from the RAM 2014, and write back the results to the RAM 2014. The CPU 2012 may also search for information in a file, database, etc. in the recording medium. For example, when a plurality of entries each having an attribute value of a first attribute associated with an attribute value of a second attribute are stored in the recording medium, the CPU 2012 may search for an entry that matches a condition in which an attribute value of the first attribute is specified from among the plurality of entries, read the attribute value of the second attribute stored in the entry, and thereby obtain the attribute value of the second attribute associated with the first attribute that satisfies a predetermined condition.
[0146] The above-described programs or software modules may be stored in a computer-readable storage medium on the computer 2000 or in the vicinity of the computer 2000. A recording medium such as a hard disk or a RAM provided in a server system connected to a dedicated communication network or the Internet can be used as the computer-readable storage medium. The programs stored in the computer-readable storage medium may be provided to the computer 2000 via a network.
[0147] A program installed in computer 2000 and causing computer 2000 to function as system 100 may act on CPU 2012, etc., to cause computer 2000 to function as each part of system 100. When information processing described in these programs is read into computer 2000, it functions as each part of system 100, which is a specific means in which software and the above-mentioned various hardware resources work together. These specific means then realize calculation or processing of information according to the intended use of computer 2000 in this embodiment, thereby constructing a specific system 100 according to the intended use.
[0148] Various embodiments have been described with reference to block diagrams or the like. In the block diagrams, each block may represent (1) a stage of a process where an operation is performed or (2) a portion of an apparatus responsible for performing an operation. Particular stages and portions may be implemented by dedicated circuitry, programmable circuitry provided with computer-readable instructions stored on a computer-readable storage medium, and / or a processor provided with computer-readable instructions stored on a computer-readable storage medium. The dedicated circuitry may include digital and / or analog hardware circuitry and may include integrated circuits (ICs) and / or discrete circuits. The programmable circuitry may include reconfigurable hardware circuitry including logical AND, logical OR, logical XOR, logical NAND, logical NOR, and other logical operations, memory elements such as flip-flops, registers, field programmable gate arrays (FPGAs), programmable logic arrays (PLAs), and the like.
[0149] A computer-readable storage medium may include any tangible device capable of storing instructions that are executed by a suitable device, such that a computer-readable storage medium having instructions stored thereon constitutes at least a portion of a product that includes instructions that can be executed to provide a means for performing the operations specified in a process or block diagram. Examples of computer-readable storage media may include electronic storage media, magnetic storage media, optical storage media, electromagnetic storage media, semiconductor storage media, etc. More specific examples of computer-readable storage media may include floppy disks, diskettes, hard disks, random access memories (RAMs), read-only memories (ROMs), erasable programmable read-only memories (EPROMs or flash memories), electrically erasable programmable read-only memories (EEPROMs), static random access memories (SRAMs), compact disk read-only memories (CD-ROMs), digital versatile disks (DVDs), Blu-ray (RTM) disks, memory sticks, integrated circuit cards, etc.
[0150] The computer readable instructions may include either assembler instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including object-oriented programming languages such as Smalltalk®, JAVA®, C++, etc., and conventional procedural programming languages such as the “C” programming language or similar programming languages.
[0151] The computer readable instructions may be provided to a processor or programmable circuitry of a general purpose computer, special purpose computer, or other programmable data processing apparatus, either locally or over a wide area network (WAN) such as a local area network (LAN), the Internet, etc., to cause the computer readable instructions to execute means for performing operations specified in the process steps or block diagrams described. Examples of processors include computer processors, processing units, microprocessors, digital signal processors, controllers, microcontrollers, etc.
[0152] Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It is clear to those skilled in the art that various modifications and improvements can be made to the above embodiments. It is clear from the description of the claims that such modifications and improvements can also be included in the technical scope of the present invention.
[0153] It should be noted that the order of execution of each process, such as operations, procedures, steps, and stages, in the devices, systems, programs, and methods shown in the claims, specifications, and drawings is not specifically indicated as "before," "prior to," etc., and may be realized in any order unless the output of a previous process is used in a subsequent process. Even if the operational flow in the claims, specifications, and drawings is described using "first," "next," etc. for convenience, it does not mean that it is essential to perform the process in this order. [Explanation of symbols]
[0154] 5. Power System 10 Vehicles 20 Vehicles 42 Private Residence 44 Facilities 12 Battery 30 Stations 70 Electricity consumers 80 Power Generation Equipment 90 Power Network 180 Servers 190 Communication Network 200 Processing section 210 Acquisition Department 220 Estimation Department 230 Allocation Section 240 Control Unit 250 Classification Department 280 Storage section 290 Communication Equipment 301 Predicted Power 302 Target power 311 Estimated Power 331 Required power 100 Systems 2000 Computer 2010 Host Controller 2012 CPU 2014 RAM 2020 Input / Output Controller 2022 Communication Interface 2024 Flash Memory 2026 ROM 2040 Input / Output Chip
Claims
1. A system for controlling charging of a plurality of mobile batteries and supplying power from the plurality of mobile batteries to an external device, comprising: a control unit that provides power resources to a power network by performing at least one of a first control for reducing a charge amount to the plurality of movable batteries and a second control for increasing an amount of power supplied from the plurality of movable batteries to an outside in response to a first request for reducing power consumption; an allocation unit that allocates whether each of the plurality of movable batteries will provide power resources to the power network through the first control or the second control in each of a plurality of future time periods based on an amount of power resources that each of the plurality of movable batteries can provide to the power network and an amount of power resources that each of the plurality of movable batteries needs to provide to the power network, with the first control being prioritized over the second control; A system comprising:
2. The allocation unit, in each of the plurality of time periods in the future, (i) when a total amount of power resources that the plurality of movable batteries can provide to the power network through the first control is equal to or greater than an amount of power resources that the plurality of movable batteries need to provide to the power network, allocating power resources to be provided to the power network only through the first control during each time period; (ii) when a total amount of power resources that the plurality of movable batteries can provide to the power network through the first control is less than an amount of power resources that need to be provided to the power network, allocating the power resources that cannot be provided to the power network through the first control in each time period to be provided through the second control. The system of claim 1 .
3. an estimation unit that estimates an amount of power resource that each of the plurality of movable batteries can provide to the power network by each of the first control and the second control in each of a plurality of time periods in the future based on a predicted usage status of the plurality of movable batteries; The system of claim 1 further comprising:
4. The allocation unit, in each of the plurality of time periods in the future, (i) when a total amount of power resources that the plurality of movable batteries can provide to the power network through the first control estimated by the estimation unit is equal to or greater than an amount of power resources that need to be provided to the power network, allocating power resources to be provided to the power network only through the first control during each time period; (ii) when a total amount of power resources that the plurality of movable batteries can provide to the power network through the first control estimated by the estimation unit is less than an amount of power resources that need to be provided to the power network, allocating the power resources that cannot be provided to the power network through the first control in each time period to be provided through the second control. The system of claim 3.
5. The estimation unit estimates power resources that need to be provided to the power network in each of a plurality of time periods in the future based on a target value of power consumption for each time period by the plurality of mobile batteries in the future and a prediction of a charge / discharge amount of the plurality of mobile batteries in the future.
5. A system according to claim 3 or 4.
6. The allocation unit allocates an amount of power resource to be provided to the power network by each of the plurality of movable batteries through at least one of the first control and the second control in each of a plurality of time periods in the future. A system according to any one of claims 1 to 4.
7. the estimation unit allocates whether each of the plurality of movable batteries will provide the power resource to the power network through the first control or the second control in each of a plurality of time periods within a period in which the power resource agreed upon in the electricity market should be provided to the power network, based on an amount of power resource that each of the plurality of movable batteries can provide to the power network and an amount of power resource that each of the plurality of movable batteries needs to provide to the power network, with the first control being prioritized over the second control; The control unit, in response to receiving the first request within a period in which the power resource is to be provided to the power network, performs at least one of the first control and the second control based on an amount of power resource that can be provided to the power network estimated by the estimation unit. The system of claim 3.
8. The control unit further provides power resources to the power network by performing at least one of a third control for increasing a charge amount to the plurality of movable batteries and a fourth control for decreasing an amount of power supplied from the plurality of movable batteries to an outside in response to a second request for increasing power consumption; The allocation unit allocates whether each of the plurality of movable batteries will provide power resources to the power network through the first control, the second control, the third control, or the fourth control in each of a plurality of time periods in the future, based on an amount of power resources that each of the plurality of movable batteries can provide to the power network and an amount of power resources that each of the plurality of movable batteries needs to provide to the power network. A system according to any one of claims 1 to 4.
9. The plurality of mobile batteries includes a battery mounted on a vehicle. A system according to any one of claims 1 to 3.
10. The plurality of mobile batteries includes batteries mounted on the vehicle and replaceable at a plurality of stations. The system of claim 9.
11. A program for causing a computer to function as the system according to any one of claims 1 to 4.
12. providing power resources to a power network by performing at least one of a first control for reducing a charge amount to a plurality of movable batteries and a second control for increasing an amount of power supplied from the plurality of movable batteries to an outside in response to a first request for reducing power consumption; allocating whether each of the plurality of movable batteries will provide power resources to the power network through the first control or the second control in each of a plurality of future time periods based on an amount of power resources that each of the plurality of movable batteries can provide to the power network and an amount of power resources that each of the plurality of movable batteries needs to provide to the power network, with the first control being given priority over the second control; A method for providing the above.
Citation Information
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