Management system and power system

Abstract

To utilize mobile bodies that transport electricity more effectively compared to prior arts.SOLUTION: A management system 20 which manages electric power of an independent system 11 includes: an acquisition unit 211 which acquires time information SI1 indicating end time of power supply periods ST in which power can be supplied by each of a plurality of mobile bodies 30 that can supply power to the independent system 11; a priority determination unit 212 which determines, based on the time information SI1, priority levels PR of the mobile bodies 30 to supply power to the independent system 11; and an instruction output unit 214 which outputs, based on the priority levels PR, a power supply instruction R that designates a power supply period to one or more mobile bodies 30 of the multiple mobile bodies 30 or a power supply device 50 that receives power supplied by the one or more mobile bodies 30.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to techniques for managing power. [Background technology]

[0002] In an independent system (microgrid) installed in each region independent of a large-scale power system, a mechanism for avoiding power shortages is important. For example, Patent Document 1 discloses a power system that allocates parking spaces for supplying power to the power grid to mobile units that respond to a request for power supply to the power grid among multiple mobile units that can supply power. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2022-98769 Summary of the Invention [Problem to be solved by the invention]

[0004] In the power system disclosed in Patent Document 1, when there are multiple mobile objects that have responded to a power supply request, a parking space is allocated to a mobile object that can supply more power to the power grid among the multiple mobile objects. As a result, there is a possibility that some of the mobile objects that have responded to the power supply request will not be able to supply power even if power is transported. In consideration of the above circumstances, one aspect of the present disclosure aims to more effectively utilize mobile objects that transport power compared to conventional technologies. [Means for solving the problem]

[0005] A management system according to one embodiment of the present invention is a management system for managing power in an independent system, and includes: an acquisition unit that acquires time information indicating the end time of a power supply period in which power can be supplied by each of a plurality of mobile bodies that can supply power to the independent system; a priority determination unit that determines a priority for supplying power to the independent system for each of the plurality of mobile bodies based on the time information; and an instruction output unit that outputs a power supply instruction specifying a power supply period to one or more of the plurality of mobile bodies, or to a power supply device that accepts power supply from the one or more mobile bodies, based on the priority.

[0006] Furthermore, a power system according to one embodiment of the present invention includes an independent system and a management system that manages the power of the independent system, and the management system includes an acquisition unit that acquires time information indicating the end time of a power supply period in which power can be supplied by each of a plurality of mobile bodies that can supply power to the independent system, a priority determination unit that determines a priority for supplying power to the independent system for each of the plurality of mobile bodies based on the time information, and an instruction output unit that outputs a power supply instruction that specifies a power supply period to one or more of the plurality of mobile bodies or a power supply device that accepts power supply from the one or more mobile bodies based on the priority. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a block diagram illustrating a configuration of a power system 100 according to a first embodiment. [Figure 2] FIG. 2 is a diagram showing an example of a power supply method by an electric vehicle 30. [Figure 3] FIG. 2 is a diagram showing an example of a power supply method by an electric vehicle 30. [Figure 4] FIG. 1 is a simulation diagram showing a power supply method for supplying power to an independent system 11. [Figure 5] FIG. 2 is a simulation diagram showing a power supply method for supplying power to an independent system 11. [Figure 6] FIG. 2 is a block diagram illustrating the configuration of a management system 20. [Figure 7]FIG. 2 is a schematic diagram of registered data D. [Figure 8] 2 is a block diagram illustrating an example of the functional configuration of a management system 20. FIG. [Figure 9] FIG. 10 is a schematic diagram of power supply information SI. [Figure 10] FIG. 10 is a schematic diagram of a power supply instruction R. [Figure 11] FIG. 2 is a block diagram illustrating the configuration of an information device 40. [Figure 12] FIG. 6 is a schematic diagram of a confirmation screen 60. [Figure 13] 10 is a flowchart of a process executed by a control device 21 of a management system 20. [Figure 14] 10 is a graph showing an example of the amount of power supplied from electric vehicles 30 of each priority level PR in response to a change over time in total demand DM. [Figure 15] FIG. 2 is a simulation diagram showing a power supply method for supplying power to an independent system 11. [Figure 16] FIG. 10 is a diagram illustrating an example of a method for controlling the amount of power supplied per unit time. [Figure 17] FIG. 2 is a block diagram illustrating the configuration of a management system 20. [Figure 18] 10 is a flowchart of a process executed by a control device 21 of a management system 20. [Figure 19] FIG. 2 is a simulation diagram showing a power supply method for supplying power to an independent system 11. [Figure 20] FIG. 2 is a diagram illustrating an example of a power receiving facility 50. [Figure 21] 2 is a block diagram illustrating an example of the functional configuration of a management system 20. FIG. [Figure 22] 10 is a flowchart of a process executed by a control device 21 of a management system 20. DETAILED DESCRIPTION OF THE INVENTION

[0008] A management system according to an embodiment will be described below with reference to the drawings. Note that the dimensions and scale of each part in each drawing are appropriately different from the actual ones. Furthermore, the embodiments described below are preferred specific examples, and therefore various technically preferable limitations are applied. However, the scope of the present disclosure is not limited to these forms unless otherwise specified in the following description to the effect that the present disclosure is limited.

[0009] 1: First embodiment Hereinafter, a management system according to a first embodiment and a power system including the management system will be described with reference to FIGS.

[0010] 1-1: Overview of the first embodiment Hereinafter, an outline of the configuration of a power system 100 according to this embodiment will be described with reference to FIG. 1 is a block diagram illustrating the configuration of a power system 100 according to a first embodiment. The power system 100 according to the first embodiment is a system for managing power in a specific area (hereinafter referred to as "target area A1"), such as a mountainous area or an isolated island, and includes an independent grid 11 and a management system 20.

[0011] The independent system 11 is a small-scale power system (microgrid) installed in the target area A1. Specifically, the independent system 11 is a power distribution system for supplying power to business facilities or consumers such as ordinary households within the target area A1. The independent system 11 is installed independently from the main power system 91. In other words, the independent system 11 is in a state of being disconnected from the power system 91. The independent system 11 is operated, for example, by a local government. However, the independent system 11 may also be operated by a private operator such as a power transmission and distribution company.

[0012] The power grid 91 is a power transmission and distribution system installed in an area outside the target area A1 (hereinafter referred to as "external area A2"). Specifically, the power grid 91 is a wide-area power transmission and distribution system including large-scale power generation facilities such as thermal power plants or nuclear power plants. The external area A2 is, for example, an urban area where many consumers are located. As described above, since the independent grid 11 is disconnected from the power grid 91, there is a possibility that the independent grid 11 will experience a power shortage.

[0013] The independent grid 11 includes a power storage system 12. The power storage system 12 is one or more storage batteries connected to the independent grid 11. For example, a stationary power storage facility equipped with a plurality of storage batteries is used as the power storage system 12. The power storage system 12 is capable of charging with power and supplying (i.e., discharging) power to the independent grid 11. The power storage system 12 may be understood as an element constituting the independent grid 11.

[0014] The management system 20 is a computer system (EMS: Energy Management System) for managing the power of the independent grid 11. Specifically, the management system 20 controls the power that the power storage system 12 exchanges with the independent grid 11. For example, the management system 20 controls the charging and discharging of the power storage system 12 so that the power at a specific point in the independent grid 11 is maintained at a target value. That is, when the power at the specific point is below the target value, the management system 20 supplies power to the independent grid 11 by discharging the power storage system 12. On the other hand, when the power at the specific point is above the target value, the management system 20 charges the power storage system 12 with the power supplied from the independent grid 11.

[0015] In the above explanation, the control of the power storage system 12 by the management system 20 has been exemplified, but the management system 20 also controls power facilities other than the power storage system 12. The power facilities are power resources that exchange power with the independent grid 11. For example, examples of the power facilities include a hydrogen production device that produces hydrogen using power supplied from the independent grid 11, or a distributed power generation facility that generates power using renewable energy such as solar power or wind power. The power facilities exemplified above may be understood as elements that make up the independent grid 11.

[0016] A plurality of users U are located in the target area A1. The plurality of users U are, for example, residents living in the target area A1 or employees commuting to the target area A1. Each user U can travel using an electric vehicle (EV) 30 equipped with a storage battery 31. The electric vehicle 30 is a mobile object that can run using an electric motor powered by the storage battery 31. The storage battery 31 is a secondary battery that can charge and discharge electricity.

[0017] Each user U can use an information device 40. The information device 40 is a portable terminal device such as a smartphone or tablet terminal owned by the user U, or a route guidance device (car navigation system) installed in the electric vehicle 30. The route guidance device may be either built into the electric vehicle 30 or detachably installed in the electric vehicle 30. The electric vehicle 30, the storage battery 31, or the information device 40 may be understood as elements that make up the power system 100.

[0018] Each user U can travel inside and outside the target area A1. For example, a user U residing in the target area A1 uses an electric vehicle 30 to travel between his home in the target area A1 and his workplace in an external area A2 on a daily basis. A user U residing in the external area A2 also uses an electric vehicle 30 to travel between his home in the external area A2 and his workplace in the target area A1 on a daily basis.

[0019] While the electric vehicle 30 is located in the external area A2, the user U can charge the storage battery 31 of the electric vehicle 30 with power supplied from the power grid 91 of the external area A2. Furthermore, while the electric vehicle 30 is located in the target area A1, the user U can provide the power stored in the storage battery 31 to the power storage system 12 via the power receiving equipment 50 provided in the power system 100. The power receiving equipment 50 is connected to both the electric vehicle 30 and the power storage system 12, thereby receiving the power stored in the storage battery 31 of the electric vehicle 30 and supplying the received power to the power storage system 12. In other words, the power storage system 12 can be charged with power supplied from the electric vehicle 30. The power receiving equipment 50 and the electric vehicle 30 may be connected via a power receiving plug or may be connected contactlessly. Furthermore, the power storage system 12 supplies the power provided by the electric vehicle 30 to the independent grid 11. The power storage system 12 may be charged with power supplied from the electric vehicle 30 via the independent grid 11.

[0020] As explained above, the independent system 11 is independent from the power system 91, but can indirectly receive power from the power system 91 via the electric vehicles 30 traveling between the target area A1 and the external area A2. That is, power from the power system 91 is transported to the independent system 11 by the electric vehicles 30. That is, each user U can use the electric vehicles 30 to provide power to the independent system 11 (e.g., the power storage system 12) (hereinafter referred to as "power provision"). Therefore, according to the first embodiment, the possibility of a power shortage in the independent system 11 can be reduced.

[0021] Each user U is not a business operator whose daily business is providing electricity, but an ordinary resident who travels between the target area A1 and the external area A2. That is, when a user U travels between the target area A1 and the external area A2 in an electric vehicle 30 for his or her own purposes, the transfer of electricity from the power grid 91 to the independent grid 11 is incidentally realized. According to the above-described embodiment, the cost of securing electricity for the independent grid 11 can be reduced compared to when requesting the provision of electricity from a specialized business operator that is fixedly designated according to a pre-planned plan.

[0022] 2 and 3 are diagrams showing an example of a power supply method using an electric vehicle 30. In FIGS. 2 and 3, it is assumed that an electric vehicle 30A and an electric vehicle 30B are capable of supplying power to a storage battery 12A included in a power storage system 12 and electric loads 13A and 13B used by consumers. The electric loads 13 (13A, 13B) are facilities that consume power. Examples of electric loads include various home appliances in an ordinary home, or business facilities such as office equipment or manufacturing machines in a business.

[0023] 2, when storage battery 12A is not fully charged and a consumer is using both electrical load 13A and electrical load 13B, both electric vehicle 30A and electric vehicle 30B supply power to storage battery 12A, electrical load 13A, and electrical load 13B. As an example, electric vehicle 30A supplies power to electrical load 13A and electrical load 13B, and electric vehicle 30B supplies power to electrical load 13B and storage battery 12A.

[0024] On the other hand, as shown in Fig. 3, when the storage battery 12A is fully charged and the amount of power consumed by the electrical load 13B is relatively small compared to the case shown in Fig. 2, for example, the electric vehicle 30A supplies power to the electrical load 13A and the electrical load 13B. However, unlike the power supply method shown in Fig. 2, the electric vehicle 30B does not supply power to either the electrical load 13B or the storage battery 12A.

[0025] 3, even though there are two electric vehicles to which power can be supplied, electric vehicle 30A and electric vehicle 30B, only one electric vehicle, electric vehicle 30A, is actually supplied with power. As a result, electric vehicle 30B charges storage battery 31 with power supplied from power grid 91 in external area A2 shown in FIG. 1, and charges power storage system 12, so even if electric vehicle 30B moves to target area A1, the power stored in storage battery 31 is not used.

[0026] Figures 4 and 5 are simulation diagrams showing a power supply method for supplying power from only one electric vehicle 30 out of three electric vehicles 30A to 30C in target area A1 to independent grid 11 as shown in Figure 3. Figure 4 is a simulation diagram showing a power supply method for supplying power from electric vehicle 30 to independent grid 11 in a reference example. Meanwhile, Figure 5 is a simulation diagram showing a power supply method for supplying power from electric vehicle 30 to independent grid 11 in this embodiment.

[0027] 4, it is assumed that electric vehicle 30A arrives at target area A1 first, followed by electric vehicle 30B, and finally electric vehicle 30C. Note that in FIG. 4, time tn+1 (n is a natural number) is a time after time tn.

[0028] It is assumed that the electric vehicle 30A stays in the target area A1 from time t1 to time t8. In other words, the period ST1 during which the electric vehicle 30A can supply power to the independent grid 11 is the period from time t1 to time t8. Similarly, it is assumed that the electric vehicle 30B stays in the target area A1 from time t2 to time t5. In other words, the period ST2 during which the electric vehicle 30B can supply power to the independent grid 11 is the period from time t2 to time t5. Similarly, it is assumed that the electric vehicle 30C stays in the target area A1 from time t4 to time t7. In other words, the period ST3 during which the electric vehicle 30C can supply power to the independent grid 11 is the period from time t4 to time t7.

[0029] In the reference example shown in FIG. 4, power is supplied from the electric vehicles 30 to the independent grid 11 in the order in which the electric vehicles 30 arrive in the target area A1. Therefore, first, from time t1 to time t3, electric power is supplied from electric vehicle 30A to independent system 11. Time t3 is the time when the amount of power supplied from electric vehicle 30A to independent system 11 reaches a predetermined target value (hereinafter referred to as "target amount of power"). In other words, time t3 is the time when the supply of the target amount of power from electric vehicle 30A to independent system 11 ends.

[0030] Next, at time t3, after the electric vehicle 30A finishes supplying power to the independent grid 11, the electric vehicle 30B starts supplying power to the independent grid 11. Based on the target power amount of the electric vehicle 30B, the electric vehicle 30B can supply power to the independent grid 11 until time t6, but the electric vehicle 30B stays in the target area A1 only until time t5. Therefore, the power supply from the electric vehicle 30B to the independent grid 11 ends at time t5. Finally, from time t5 to time t7 when the entire target amount of power of the electric vehicle 30C is supplied, the electric vehicle 30C supplies power to the independent grid 11.

[0031] As described above, in the reference example, the amount of electricity that would normally be supplied from electric vehicle 30B to independent grid 11 from time t5 to time t6 is not actually supplied to independent grid 11 because electric vehicle 30B moves outside target area A1 at time t5.

[0032] Therefore, in this embodiment, the priority of each of electric vehicles 30A to 30C for supplying power to independent grid 11 is determined based on time information SI1 indicating the end time of power supply possible period ST during which each of electric vehicles 30A to 30C can supply power to independent grid 11.

[0033] In the supply method shown in FIG. 5, when multiple electric vehicles 30 are present in the target area A1 at the same time, the electric vehicle 30 whose power supply period ST ends earlier among the multiple electric vehicles 30 is given priority in supplying power to the independent grid 11.

[0034] Specifically, from time t1, electric vehicle 30A supplies power to independent grid 11. At time t2, electric vehicle 30B arrives in target area A1, resulting in electric vehicle 30A and electric vehicle 30B being present in target area A1. The end time of power supply possible period ST1 for electric vehicle 30A is time t8, and the end time of power supply possible period ST2 for electric vehicle 30B is time t5. Because time t5 is earlier than time t8, the supply of power from electric vehicle 30A to independent grid 11 stops at time t2, and instead electric vehicle 30B supplies power to independent grid 11.

[0035] At time t4, electric vehicle 30C arrives in target area A1, resulting in electric vehicle 30A, electric vehicle 30B, and electric vehicle 30C being present in target area A1. The end time of power supply possible period ST1 for electric vehicle 30A is time t8, the end time of power supply possible period ST2 for electric vehicle 30B is time t5, and the end time of power supply possible period ST3 for electric vehicle 30C is time t7. Since the earliest time among times t8, t5, and t7 is time t5, electric vehicle 30B continues to supply power to independent grid 11 from time t4 onwards.

[0036] At time t5, electric vehicle 30B moves out of target area A1, leaving electric vehicle 30A and electric vehicle 30C in target area A1. The end time of power supply possible period ST1 for electric vehicle 30A is time t8, and the end time of power supply possible period ST3 for electric vehicle 30C is time t7. Because time t7 is earlier than time t8, electric vehicle 30C starts supplying power to independent grid 11 from time t5.

[0037] At time t7, electric vehicle 30C moves out of target area A1, leaving only electric vehicle 30A in target area A1. Therefore, electric vehicle 30A supplies power to independent grid 11 from time t7 to time t8.

[0038] Comparing the supply method of the present embodiment shown in FIG. 5 with the supply method of the reference example shown in FIG. 4, in the present embodiment, unlike the reference example, the electric vehicle 30B is able to supply power to the independent grid 11 throughout the entire power supply possible period ST2.

[0039] 5, electric vehicle 30A continues to supply electricity until time t8, which is the end time of power supply possible period ST1, but this is just one example. When power equivalent to the total power demand required by independent grid 11 has been supplied, or when all of the power that can be supplied from electric vehicle 30A has been supplied, electric vehicle 30A may end the supply of power at a time before time t8, which is the end time of power supply possible period ST1. The same applies to electric vehicle 30B and electric vehicle 30C.

[0040] 1-2: Configuration of the first embodiment Fig. 6 is a block diagram illustrating an example of the configuration of the management system 20. As illustrated in Fig. 6, the management system 20 includes a control device 21, a storage device 22, and a communication device 23. The management system 20 may be realized as a single device, or may be realized as multiple devices configured separately from each other.

[0041] The control device 21 is composed of one or more processors that control each element of the management system 20. Specifically, the control device 21 is composed of one or more types of processors, such as a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), a DSP (Digital Signal Processor), an FPGA (Field Programmable Gate Array), or an ASIC (Application Specific Integrated Circuit).

[0042] 1, the communication device 23 communicates with each information device 40 via a communication network 92 such as the Internet. Note that the communication device 23, which is separate from the management system 20, may be connected to the management system 20 by wire or wirelessly. The communication device 23 also communicates with the power storage system 12 via the communication network 92 such as a dedicated line.

[0043] 6 is one or more memories that store programs executed by the control device 21 and data used by the control device 21. The storage device 22 is configured with a known storage medium such as a magnetic storage medium or a semiconductor storage medium. The storage device 22 may be configured with a combination of multiple types of storage media. A portable storage medium that can be attached to and detached from the management system 20 may be used as the storage device 22.

[0044] The storage device 22 stores registration data D for each of a plurality of users U. For example, the registration data D of each user U is stored in the storage device 22 through a prior registration process performed by the user U. FIG. 7 is a schematic diagram of the registration data D. As illustrated in FIG. 7, the registration data D includes identification information D1 and destination information D2.

[0045] The identification information D1 is a code string for identifying the user U. The destination information D2 is information that indicates the destination of information transmitted from the management system 20. Specifically, information for identifying the information device 40 owned by the user U (for example, an IP address) is registered as the destination information D2.

[0046] 8 is a block diagram illustrating an example of the functional configuration of the management system 20. The control device 21 executes a program stored in the storage device 22 to realize a plurality of functions (an acquisition unit 211, a priority determination unit 212, and an instruction output unit 214) for smoothly operating the supply of power using the electric vehicle 30.

[0047] The acquisition unit 211 acquires the power supply information SI from the information device 40 provided in each of the plurality of electric vehicles 30. It is assumed that the power supply information SI has been stored in advance in the storage device 42 provided in the information device 40.

[0048] Fig. 9 is a schematic diagram of the power supply information SI. As illustrated in Fig. 9, the power supply information SI transmitted from the information device 40 of each electric vehicle 30 includes time information SI1 indicating a power supply possible period ST during which the electric vehicle 30 is able to supply power to the independent grid 11. Specifically, the time information SI1 indicates the start time and end time of the power supply possible period ST. Note that the start time of the power supply possible period ST may be omitted.

[0049] Furthermore, the power supply information SI includes available power supply amount information SI2 indicating the amount of power that each of the multiple electric vehicles 30 can supply to the independent grid 11. The amount of power indicated by the available power supply amount information SI2 is calculated by the information device 40 based on at least the amount of power remaining in the storage battery 31 before power supply starts and the amount of power that each electric vehicle 30 needs to move from the power receiving equipment 50 after power supply is completed. Note that the available power supply amount information SI2 may include, in addition to the information indicating the amount of power that can be supplied, information indicating the amount of power remaining in the storage battery 31 before power supply starts and information indicating the amount of charge to be left in the storage battery 31 for each electric vehicle 30 to move from the power receiving equipment 50 after power supply to the independent grid 11.

[0050] 8, the priority determination unit 212 determines the priority PR for supplying power to the independent grid 11 for each of the multiple electric vehicles 30 based on the time information SI1 acquired by the acquisition unit 211. Specifically, the priority determination unit 212 determines the priority PR such that the earlier the end time of the power supply possible period ST indicated by the time information SI1, the higher the priority is assigned to the electric vehicle 30.

[0051] Furthermore, the priority determination unit 212 may determine the above priority PR based on the amount of charge remaining in each electric vehicle 30 after power is supplied to the independent grid 11. Specifically, the priority determination unit 212 may determine the priority PR such that an electric vehicle 30 with a smaller amount of charge indicated by the available power supply amount information SI2 has a higher priority.

[0052] When the priority determination unit 212 determines the priority PR based on the amount of charge remaining in each electric vehicle 30 in addition to the time information SI1 acquired by the acquisition unit 211, for example, the priority determination unit 212 determines the priority PR of electric vehicles 30 whose end time of the power supply available period ST is before time t0 as a first priority PR1, where the threshold for the end time of the power supply available period ST is time t0 and the threshold for the amount of charge indicated by the available power supply amount information SI2 is the amount of charge m0. Furthermore, the priority determination unit 212 determines the priority PR of electric vehicles 30 whose end time of the power supply available period ST is later than time t0 and whose amount of charge indicated by the available power supply amount information SI2 is equal to or greater than the amount of charge m0 as a second priority PR2. Furthermore, the priority determination unit 212 determines the priority PR of electric vehicles 30 whose end time of the power supply available period ST is later than time t0 and whose amount of charge indicated by the available power supply amount information SI2 is less than the amount of charge m0 as a third priority PR3. The first priority PR1 is higher than the second priority PR2, and the second priority PR2 is higher than the third priority PR3.

[0053] Alternatively, as one example, the priority determination unit 212 sets the priority PR of an electric vehicle 30 whose charge amount indicated by the available power supply amount information SI2 is equal to or greater than the charge amount m0 as a first priority PR1. Furthermore, the priority determination unit 212 sets the priority PR of an electric vehicle 30 whose charge amount indicated by the available power supply amount information SI2 is less than the charge amount m0 and whose power supply available period ST ends before time t0 as a second priority PR2. Furthermore, the priority determination unit 212 sets the priority PR of an electric vehicle 30 whose charge amount indicated by the available power supply amount information SI2 is less than the charge amount m0 and whose power supply available period ST ends after time t0 as a third priority PR3.

[0054] In the above example, three priority PRs, namely, first priority PR1 to third priority PR3, are used, but this is merely an example. As another example, only two priority PRs may be used, or four or more priority PRs may be used.

[0055] In FIG. 8, the instruction output unit 214 outputs a power supply instruction R to one or more electric vehicles 30 out of the plurality of electric vehicles 30 based on the priority PR determined by the priority determination unit 212.

[0056] Fig. 10 is a schematic diagram of a power supply instruction R. As illustrated in Fig. 10, the power supply instruction R includes power supply period information RI1 and power supply amount information RI2.

[0057] The power supply period information RI1 is information that instructs the electric vehicle 30 on the period (hereinafter referred to as the "power supply period") during which power should be supplied to the independent grid 11. The power supply amount information RI2 is information that instructs the electric vehicle 30 on the total amount of power to be supplied to the independent grid 11 during the power supply period indicated by the power supply period information RI1.

[0058] 5, the instruction output unit 214 outputs to the electric vehicle 30A a power supply instruction R that includes power supply period information RI1 that specifies the period from time t1 to time t2 as the power supply period and power supply amount information RI2 that specifies an amount of power V11 as the total supply amount. Furthermore, the instruction output unit 214 outputs to the electric vehicle 30A a power supply instruction R that specifies a power supply period from time t7 to time t8 and an amount of power V12 as the total supply amount.

[0059] Similarly, the instruction output unit 214 outputs to the electric vehicle 30B a power supply instruction R that includes power supply period information RI1 that specifies the power supply period from time t2 to time t5 as the power supply period and power supply amount information RI2 that specifies the amount of power V2 as the total supply amount.The instruction output unit 214 outputs to the electric vehicle 30C a power supply instruction R that includes power supply period information RI1 that specifies the power supply period from time t5 to time t7 as the power supply period and power supply amount information RI2 that specifies the amount of power V3 as the total supply amount.

[0060] In the power supply method illustrated in FIG. 5, the electric vehicle 30A is an example of a "first moving body." The electric vehicle 30B is an example of a "second moving body." Time t1 is an example of a "first starting point." Time t8 is an example of a "first ending point." Time t2 is an example of a "second starting point." Time t5 is an example of a "second ending point." The power supply period by the electric vehicle 30A from time t1 to time t2 is an example of a "first power supply period." The power supply period by the electric vehicle 30A from time t7 to time t8 is an example of a "second power supply period." The power supply period by the electric vehicle 30B from time t2 to time t5 is an example of a "third power supply period."

[0061] Furthermore, after the electric vehicle 30 connects the power supply cable to the power receiving plug of the power receiving facility 50, the instruction output unit 214 may output a power supply instruction R to the electric vehicle 30. In this case, the electric vehicle 30 may automatically supply power from the storage battery 31 to the independent grid 11 via the power receiving facility 50, triggered by the electric vehicle 30 receiving the power supply instruction R.

[0062] Alternatively, after the electric vehicle 30 connects the power supply cable to the power receiving plug of the power receiving equipment 50, the instruction output unit 214 may output a power supply instruction R to the power receiving equipment 50. In this case, the power receiving equipment 50 may acquire power from the storage battery 31 and automatically supply the power to the independent grid 11, triggered by the acquisition of the power supply instruction R by the power receiving equipment 50.

[0063] Alternatively, when the instruction output unit 214 outputs a power supply instruction R to the electric vehicle 30, a confirmation screen 60 corresponding to the power supply instruction R may be displayed on the display device 44 of the information device 40, as will be described later. Specifically, the contents of the power supply instruction R may be displayed on the display device 44. In this case, the user U views the confirmation screen 60 to determine whether or not to accept the provision of power.

[0064] Fig. 11 is a block diagram illustrating an example of the configuration of information device 40. As illustrated in Fig. 11, information device 40 includes a control device 41, a storage device 42, a communication device 43, a display device 44, and an operation device 45. Note that information device 40 may be realized as a single device, or may be realized as multiple devices configured separately from each other.

[0065] The control device 41 is configured with one or more processors that control each element of the information device 40. For example, the control device 41 is configured with one or more types of processors such as a CPU, a GPU, a DSP, an FPGA, or an ASIC.

[0066] The storage device 42 is one or more memories that store programs executed by the control device 41 and various data used by the control device 41. The storage device 42 is configured with a known storage medium such as a magnetic storage medium or a semiconductor storage medium. The storage device 42 may be configured with a combination of multiple types of storage medium. Also, a portable storage medium that is detachable from the information device 40 may be used as the storage device 42.

[0067] The communication device 43 communicates with the management system 20 via the communication network 92. For example, the communication device 43 receives a power supply instruction R transmitted from the management system 20. Note that the communication device 43, which is separate from the information device 40, may be connected to the information device 40 by wire or wirelessly.

[0068] The display device 44 displays an image under the control of the control device 41. The display device 44 is configured with a display panel such as a liquid crystal panel or an organic EL (Electroluminescence) panel. The operation device 45 is an input device that receives instructions from the user U. The operation device 45 is, for example, an operator operated by the user U, or a touch panel that detects contact by the user U. Note that the display device 44 or the operation device 45, which are separate from the information device 40, may be connected to the information device 40 by wire or wirelessly.

[0069] 12 is a schematic diagram of a confirmation screen 60. As an example, the control device 41 displays the confirmation screen 60 of FIG. 12 on the display device 44 in response to a power supply instruction R received by the communication device 43 from the management system 20. As illustrated in FIG. 12, the confirmation screen 60 includes a notification area 51 and an operation area 52.

[0070] The notification area 51 displays information related to the content of the power supply instruction R using the electric vehicle 30. Specifically, the notification area 51 displays instruction information RI (power supply period information RI1, power supply amount information RI2) included in the power supply instruction R. By referring to the instruction information RI displayed in the notification area 51, the user U can determine whether or not to accept the provision of power.

[0071] The operation area 52 is an area where the user U receives an instruction as to whether or not to accept the provision of power. Specifically, an operator 521 and an operator 522 are displayed in the operation area 52. The operator 521 receives a response from the user U indicating that the provision of power will be accepted. The operator 522 receives a response from the user U indicating that the provision of power will not be accepted. As illustrated in FIG. 11 , the communication device 43 transmits response information Q representing the user U's response to the operation area 52 to the management system 20. The response information Q is information representing whether the user U has accepted or rejected the provision of power.

[0072] When the management system 20 acquires information from an electric vehicle 30 indicating that a user U has refused to provide power, the priority determination unit 212 excludes the electric vehicle 30 that has refused to provide power and then determines the priority PR again.

[0073] 1-3: Operation of the first embodiment 13 is a flowchart of a process (hereinafter referred to as "management process") executed by the control device 21 of the management system 20. The management process is repeated, for example, at predetermined intervals.

[0074] When the management process is started, the control device 21 (acquisition unit 211) acquires power supply information SI (step Sa1). Specifically, the control device 21 acquires the power supply information SI from the information device 40 provided in each of the plurality of electric vehicles 30. The power supply information SI includes time information SI1 indicating the end time of a power supply possible period ST during which each of the plurality of electric vehicles 30 is able to supply power to the independent grid 11, and available power supply amount information SI2 indicating the amount of power that each of the plurality of electric vehicles 30 is able to supply to the independent grid 11.

[0075] The control device 21 (priority determination unit 212) determines the priority PR (step Sa2). Specifically, the control device 21 determines the priority PR for supplying power to the independent grid 11 for each of the electric vehicles 30 based on the time information SI1 acquired in step Sa1.

[0076] The control device 21 (instruction output unit 214) outputs a power supply instruction R (step Sa3). Specifically, the control device 21 outputs the power supply instruction R to one or more electric vehicles 30 out of the multiple electric vehicles 30 based on the priority PR determined in step Sa2.

[0077] 1-4: Effects of the First Embodiment As described above, the management system 20 according to this embodiment is a management system that manages power in the independent grid 11, and includes an acquisition unit 211, a priority determination unit 212, and an instruction output unit 214. The acquisition unit 211 acquires time information SI1 that indicates the end time of a power supply possible period ST during which power can be supplied by each of the multiple electric vehicles 30 that can supply power to the independent grid 11. The priority determination unit 212 determines a priority PR for supplying power to the independent grid 11 for each of the multiple electric vehicles 30, based on the time information SI1. The instruction output unit 214 outputs a power supply instruction R that specifies a power supply period to one or more of the multiple electric vehicles 30, based on the priority PR. The management system 20, having the above configuration, can more effectively utilize the electric vehicles 30 that transport electricity compared to conventional techniques. Specifically, the management system 20 determines the priority PR for supplying electricity to the independent grid 11 for each of the multiple electric vehicles 30 based on the end time of the electricity supply possible period ST during which electricity can be supplied, thereby reducing the incidence of electric vehicles 30 that are unable to supply electricity to the independent grid 11 despite staying in the target area A1 where the independent grid 11 is installed.

[0078] Furthermore, in the management system 20 according to this embodiment, the priority determination unit 212 further determines the priority PR based on the amount of charge remaining in each of the one or more electric vehicles 30 after power is supplied to the independent grid 11. Because the management system 20 has the above configuration, by determining the priority PR based on the amount of charge remaining in each of the plurality of electric vehicles 30 after power is supplied, in addition to the time information SI1, it is possible to ensure that each of the plurality of electric vehicles 30 has the amount of charge necessary for movement after power is supplied.

[0079] Furthermore, in the management system 20 according to this embodiment, the electric vehicle 30 serving as a mobile object is an electric vehicle 30 equipped with a storage battery 31 capable of supplying power to the independent grid 11. Because the management system 20 has the above configuration, the electric vehicle 30 used by the user U is used to supply power to the power storage system 12. For example, the user U can supply power to the power storage system 12 by stopping by the power storage system 12 during travel by the electric vehicle 30. In other words, the user U can easily provide power in the course of their daily lives. Therefore, power supply from a large number of users U can be expected.

[0080] Furthermore, in the management system 20 according to this embodiment, the multiple electric vehicles 30 include an electric vehicle 30A and an electric vehicle 30B. The electric vehicle 30A can supply power from time t1, which is a first start point, to time t8, which is a first end point. The electric vehicle 30B can supply power from time t2, which is a second start point, to time t5, which is a second end point. Time t2, which is the second start point, is a time point that follows time t1, which is the first start point. Time t8, which is the first end point, is a time point that follows time t5, which is the second end point. The instruction output unit 214 outputs a power supply instruction R to the electric vehicle 30A, specifying a first power supply period from time t1 to time t2 that is included in the period from the first start point to the second start point, and a second power supply period from time t7 to time t8 that is included in the period from the second end point to the first end point. The instruction output unit 214 outputs to the electric vehicle 30B a power supply instruction R that specifies the period from time t2 to time t5, which is the third power supply period included in the period from the second start point to the second end point. As the management system 20 has the above configuration, while the electric vehicle 30B is located within the target area A1, the electric vehicle 30B supplies power to the independent grid 11, and after the electric vehicle 30B moves out of the target area A1, the electric vehicle 30A supplies power to the independent grid 11. Therefore, the power charged in the storage battery 31 of the electric vehicle 30B can be used effectively.

[0081] As described above, the power system 100 according to this embodiment includes the independent grid 11 and the management system 20 that manages the power of the independent grid 11. The management system 20 includes an acquisition unit 211, a priority determination unit 212, and an instruction output unit 214. The acquisition unit 211 acquires time information SI1 indicating the end time of a power supply possible period ST during which each of the electric vehicles 30, which are multiple mobile objects capable of supplying power to the independent grid 11, is able to supply power. The priority determination unit 212 determines a priority PR for each of the multiple electric vehicles 30 to supply power to the independent grid 11, based on the time information SI1. The instruction output unit 214 outputs a power supply instruction R that specifies a power supply period to one or more of the multiple electric vehicles 30, based on the priority PR. Because the power system 100 has the above configuration, it can more effectively utilize the electric vehicles 30 that transport electricity compared to conventional technologies. Specifically, by determining the priority PR for supplying electricity to the independent grid 11 for each of the multiple electric vehicles 30 based on at least one of the duration of stay in the target area A1 where the independent grid 11 is installed and the departure time from the target area A1, it is possible to reduce the occurrence of electric vehicles 30 that stay in the target area A1 where the independent grid 11 is installed but are unable to supply electricity to the independent grid 11.

[0082] 2: Second embodiment A management system 20 according to the second embodiment and a power system 100 including the management system 20 will be described below with reference to Figures 14 to 16. Note that, for simplicity of explanation, the following mainly describes the differences between the management system 20 according to the second embodiment and the power system 100 including the management system 20 and the power system 100 including the management system 20 and the first embodiment. Furthermore, the same components of the management system 20 according to the second embodiment and the power system 100 including the management system 20 and the power system 100 including the management system 20 and the first embodiment will be designated by the same reference numerals, and explanations of their functions may be omitted.

[0083] 2-1: Overview of the second embodiment Hereinafter, an outline of the configuration of the power system 100 according to this embodiment will be described with reference to FIGS.

[0084] In the first embodiment, as in the power supply method shown in Fig. 3, it is assumed that power is actually supplied from only one electric vehicle 30A among a plurality of electric vehicles 30. On the other hand, in the present embodiment, as in the power supply method shown in Fig. 2, it is assumed that power may be supplied from a plurality of electric vehicles 30 simultaneously.

[0085] FIG. 14 is a graph showing an example of the power supply amount from each electric vehicle 30 with a priority PR according to the change over time of the total demand DM. In the graph of FIG. 14, the horizontal axis is the elapsed time T, and the time tn+1 (n is a natural number) is a time after the time tn. Also, the vertical axis is the total demand DM, and it is assumed that dm1 < dm2 < dm3. Further, in the graph of FIG. 14, the priority PR is higher as the numerical value is smaller (PR1 > PR2 > PR3).

[0086] As shown in FIG. 14, the total demand DM changes over time. For example, a case where the total demand DM monotonically increases during the period from time t11 to time t14 and monotonically decreases during the period from time t14 to time t17 is illustrated in FIG. 14.

[0087] In the graph of FIG. 14, according to the total demand DM, the priority of the electric vehicle 30 to supply power to the independent system 11 changes. Specifically, when the total demand DM is below the power amount dm1, only the electric vehicle 30 with the first priority PR1 supplies power to the independent system 11. When the total demand DM exceeds the power amount dm1 and is below the power amount dm2, the electric vehicle with the first priority PR1 and the electric vehicle 30 with the second priority PR2 supply power to the independent system 11.

[0088] Specifically, during the period when the total demand DM is below the power amount dm1 (time t11 to time t12, time t16 to time t17), only the electric vehicles 30 with the first priority PR1 supply power equivalent to the total demand DM to the independent grid 11. During the period when the total demand DM exceeds the power amount dm1 and is below the power amount dm2 (time t12 to time t13, time t15 to time t16), the electric vehicles 30 with the first priority PR1 supply the power amount dm1 of the total demand DM to the independent grid 11, and the electric vehicles 30 with the second priority PR2 supply the power amount of the total demand DM that exceeds the power amount dm1 to the independent grid 11. During the period (time t13 to time t15) when the total demand DM exceeds the amount of power dm2, the electric vehicle 30 with the first priority PR1 supplies the amount of power dm1 of the total demand DM to the independent grid 11, the electric vehicle 30 with the second priority PR2 supplies the amount of power (dm2-dm1) to the independent grid 11, and the electric vehicle 30 with the third priority PR3 supplies the amount of power that exceeds the amount of power dm2 of the total demand DM to the independent grid 11.

[0089] As described above, the number of electric vehicles 30 to which power should be supplied to the independent grid 11 changes depending on the total demand DM.

[0090] FIG. 15 is a simulation diagram showing a power supply method in which, as shown in FIG. 2, among three electric vehicles 30A to 30C in the target area A1, power is simultaneously supplied to the independent grid 11 from a plurality of electric vehicles 30.

[0091] Specifically, from time t1, electric vehicle 30A supplies power to independent grid 11. At time t2, electric vehicle 30B arrives in target area A1, resulting in electric vehicle 30A and electric vehicle 30B being present in target area A1. The end time of power supply available period ST1 for electric vehicle 30A is time t8, and the end time of power supply available period ST2 for electric vehicle 30B is time t5. Because time t5 is earlier than time t8, the priority PR of electric vehicle 30B is higher than the priority PR of electric vehicle 30A. From time t2 to time t3, both electric vehicle 30A and electric vehicle 30B supply power to independent grid 11. On the other hand, from time t3 to time t4, total demand DM decreases, so only electric vehicle 30B supplies power to independent grid 11.

[0092] At time t4, electric vehicle 30C arrives in target area A1, resulting in electric vehicle 30A, electric vehicle 30B, and electric vehicle 30C being present in target area A1. The end time of power supply available period ST1 for electric vehicle 30A is time t8, the end time of power supply available period ST2 for electric vehicle 30B is time t5, and the end time of power supply available period ST3 for electric vehicle 30C is time t7. Therefore, the priority PR of electric vehicle 30B is higher than the priority PR of electric vehicle 30C, and the priority PR of electric vehicle 30C is higher than the priority PR of electric vehicle 30A. At time t4, total demand DM increases, and therefore both electric vehicle 30A and electric vehicle 30B supply power to independent grid 11.

[0093] At time t5, electric vehicle 30B moves out of target area A1, leaving electric vehicle 30A and electric vehicle 30C in target area A1. The end time of power supply available period ST1 for electric vehicle 30A is time t8, and the end time of power supply available period ST3 for electric vehicle 30C is time t7. Because time t7 is earlier than time t8, the priority PR of electric vehicle 30C is higher than the priority PR of electric vehicle 30A. During the period from time t5 to time t7, both electric vehicle 30A and electric vehicle 30C supply power to independent grid 11.

[0094] At time t7, electric vehicle 30C moves out of target area A1, leaving only electric vehicle 30A in target area A1. Therefore, electric vehicle 30A supplies power to independent grid 11 from time t7 to time t8.

[0095] 15, during the period from time t2 to time t3, both electric vehicle 30A and electric vehicle 30B supply power to independent grid 11. During this power supply, the amount of power supplied per hour v13 from electric vehicle 30A is smaller than the amount of power supplied per hour v2 from electric vehicle 30B. Furthermore, during the period from time t4 to time t5, both electric vehicle 30B and electric vehicle 30C supply power to independent grid 11. During this power supply, the amount of power supplied per hour v31 from electric vehicle 30C is smaller than the amount of power supplied per hour v2 from electric vehicle 30B. Furthermore, during the period from time t5 to time t7, both electric vehicle 30A and electric vehicle 30C supply power to independent grid 11. During this power supply, the amount of power supplied per hour v14 from electric vehicle 30A is smaller than the amount of power supplied per hour v3 from electric vehicle 30C.

[0096] Fig. 16 is a diagram showing an example of a method for controlling the amount of power supplied per unit time from electric vehicles 30A to 30C. In the example shown in Fig. 16, three power receiving facilities 50A to 50C are connected to storage battery 12A.

[0097] Here, it is assumed that the amount of power supplied per hour by power receiving equipment 50A is higher than the amounts of power supplied per hour by power receiving equipment 50B and power receiving equipment 50C. If it is desired that the amount of power supplied per hour from electric vehicle 30A be relatively higher than the amounts of power supplied per hour from electric vehicle 30B and electric vehicle 30C, electric vehicle 30A is connected to power receiving equipment 50A, electric vehicle 30B is connected to power receiving equipment 50B, and electric vehicle 30C is connected to power receiving equipment 50C via connection path WR. In this case, as an example, an instruction to connect to power receiving equipment 50A is displayed on confirmation screen 60 displayed on display device 44 provided in electric vehicle 30A. A user U of electric vehicle 30A visually checks the instruction and connects electric vehicle 30A to power receiving equipment 50A. The same applies to electric vehicle 30B and electric vehicle 30C.

[0098] Alternatively, by changing the route of the connection path WR between the electric vehicles 30A to 30C and the power receiving equipment 50A to 50C, an electric vehicle 30 that requires a higher hourly supply of power may be connected to the power receiving equipment 50A.

[0099] 16, three power receiving facilities 50A to 50C are connected to the storage battery 12A, but the number of power receiving facilities 50 being three is merely an example. Any number of power receiving facilities 50 may be connected to the storage battery 12A. Furthermore, any number of electric vehicles 30 may charge the storage battery 12A via the power receiving facilities 50 depending on the shortage of power charged to the storage battery 12A.

[0100] 2-2: Configuration of the second embodiment 6 to 12 will be referred to as necessary below. As described above, the following description will mainly focus on the differences between the configuration of the management system 20 according to the second embodiment and the configuration of the management system 20 according to the first embodiment.

[0101] 17 is a block diagram illustrating an example of the functional configuration of the management system 20. Compared to the functional configuration of the management system 20 according to the first embodiment, the functional configuration of the management system 20 according to this embodiment further includes a total demand amount determination unit 213. That is, in the management system 20 according to this embodiment, the control device 21 executes a program stored in the storage device 22 to realize a plurality of functions (an acquisition unit 211, a priority determination unit 212, a total demand amount determination unit 213, and an instruction output unit 214) for smoothly operating the supply of power using the electric vehicles 30.

[0102] The total demand determination unit 213 determines the total demand DM for power in the independent grid 11. For example, in the diagrams showing an example of a power supply method by an electric vehicle 30 shown in Fig. 2 and Fig. 3, the total demand determination unit 213 determines the total demand DM based on various factors that affect the power in the independent grid 11, such as the amount of power currently stored in the power storage system 12, etc., the amount of power estimated to be consumed by each consumer (e.g., the electrical load 13), and the amount of power generated by various power generation facilities.

[0103] 17 , the instruction output unit 214 determines the output destination of the power supply instruction R based on the priority PR determined by the priority determination unit 212 and the total demand DM determined by the total demand determination unit 213. As an example, when the total demand DM is relatively small, the instruction output unit 214 outputs the power supply instruction R to only one electric vehicle 30 with the highest priority PR. On the other hand, when the total demand DM is relatively large, the instruction output unit 214 outputs the power supply instruction R to multiple electric vehicles 30 including electric vehicles 30 with relatively high priorities PR and electric vehicles 30 with relatively low priorities PR.

[0104] For example, in the power supply method illustrated in FIG. 15 , the instruction output unit 214 outputs the power supply instruction R to the electric vehicle 30A during the period from time t1 to time t2. Furthermore, the instruction output unit 214 outputs the power supply instruction R to the electric vehicles 30A and 30B during the period from time t2 to time t3. Furthermore, the instruction output unit 214 outputs the power supply instruction R to the electric vehicle 30B during the period from time t3 to time t4. Furthermore, the instruction output unit 214 outputs the power supply instruction R to the electric vehicles 30B and 30C during the period from time t4 to time t5. Furthermore, the instruction output unit 214 outputs the power supply instruction R to the electric vehicles 30A and 30C during the period from time t5 to time t7. Furthermore, the instruction output unit 214 outputs the power supply instruction R to the electric vehicle 30A during the period from time t7 to time t8.

[0105] 15 , the instruction output unit 214 outputs to the electric vehicle 30A a power supply instruction R that includes power supply period information RI1 that specifies the period from time t1 to time t2 as the power supply period, and power supply amount information RI2 that specifies an amount of power V11 as the total supply amount. Furthermore, the instruction output unit 214 outputs to the electric vehicle 30A a power supply instruction R that includes power supply period information RI1 that specifies the period from time t2 to time t3 as the power supply period, and power supply amount information RI2 that specifies an amount of power V13 as the total supply amount. Furthermore, the instruction output unit 214 outputs to the electric vehicle 30A a power supply instruction R that includes power supply period information RI1 that specifies the period from time t5 to time t7 as the power supply period, and power supply amount information RI2 that specifies an amount of power V14 as the total supply amount. Furthermore, the instruction output unit 214 outputs to the electric vehicle 30A a power supply instruction R that includes power supply period information RI1 that specifies the period from time t7 to time t8 as the power supply period, and power supply amount information RI2 that specifies the amount of power V12 as the total supply amount.

[0106] Similarly, the instruction output unit 214 outputs to the electric vehicle 30B a power supply instruction R that includes power supply period information RI1 that specifies the period from time t2 to time t5 as the power supply period, and power supply amount information RI2 that specifies the amount of power V2 as the total supply amount.

[0107] Similarly, the instruction output unit 214 outputs to the electric vehicle 30C a power supply instruction R that includes power supply period information RI1 that specifies the period from time t4 to time t5 as the power supply period and power supply amount information RI2 that specifies the amount of power V31 as the total supply amount. The instruction output unit 214 also outputs to the electric vehicle 30C a power supply instruction R that includes power supply period information RI1 that specifies the period from time t5 to time t7 as the power supply period and power supply amount information RI2 that specifies the amount of power V3 as the total supply amount.

[0108] Alternatively, the instruction output unit 214 may output a power supply instruction R including an instruction on the amount of power to be supplied per hour from each of the plurality of electric vehicles 30A to 30C to the independent grid 11 as the power supply amount information RI2.

[0109] 15 , the instruction output unit 214 outputs to the electric vehicle 30A a power supply instruction R that includes power supply period information RI1 that specifies the period from time t1 to time t2 as the power supply period, and power supply amount information RI2 that specifies the hourly power supply rate v11. Furthermore, the instruction output unit 214 outputs to the electric vehicle 30A a power supply instruction R that includes power supply period information RI1 that specifies the period from time t2 to time t3 as the power supply period, and power supply amount information RI2 that specifies the hourly power supply rate v13. Furthermore, the instruction output unit 214 outputs to the electric vehicle 30A a power supply instruction R that includes power supply period information RI1 that specifies the period from time t5 to time t7 as the power supply period, and power supply amount information RI2 that specifies the hourly power supply rate v14. Furthermore, the instruction output unit 214 outputs to the electric vehicle 30A a power supply instruction R that includes power supply period information RI1 that specifies the period from time t7 to time t8 as the power supply period, and power supply amount information RI2 that specifies the hourly power supply amount v12.

[0110] Similarly, the instruction output unit 214 outputs to the electric vehicle 30B a power supply instruction R including power supply period information RI1 that specifies the period from time t2 to time t5 as the power supply period, and power supply amount information RI2 that specifies the hourly power supply amount v2.

[0111] Similarly, the instruction output unit 214 outputs to the electric vehicle 30C a power supply instruction R that includes power supply period information RI1 that specifies the period from time t4 to time t5 as the power supply period, and power supply amount information RI2 that specifies the hourly power supply rate v31. The instruction output unit 214 also outputs to the electric vehicle 30C a power supply instruction R that includes power supply period information RI1 that specifies the period from time t5 to time t7 as the power supply period, and power supply amount information RI2 that specifies the hourly power supply rate v3.

[0112] 2-3: Operation of the second embodiment 18 is a flowchart of a process (hereinafter referred to as "management process") executed by the control device 21 of the management system 20. The management process is repeated, for example, at predetermined intervals.

[0113] When the management process is started, the control device 21 (acquisition unit 211) acquires the power supply information SI (step Sa11). Specifically, the control device 21 acquires the power supply information SI from the information device 40 provided in each of the plurality of electric vehicles 30. As described above, the power supply information SI includes time information SI1 and available power supply amount information SI2.

[0114] The control device 21 (priority determination unit 212) determines the priority PR (step Sa12). Specifically, the control device 21 determines the priority PR for supplying power to the independent grid 11 for each of the electric vehicles 30 based on the time information SI1 acquired in step Sa11.

[0115] The control device 21 (total demand amount determining unit 213) determines the total demand amount DM (step Sa13).

[0116] The control device 21 (instruction output unit 214) outputs a power supply instruction R (step Sa4). Specifically, the control device 21 outputs the power supply instruction R to one or more electric vehicles 30 among the plurality of electric vehicles 30 based on the priority PR determined in step Sa12 and the total demand DM determined in step Sa13.

[0117] 2-4: Effects of the second embodiment As described above, the management system 20 according to this embodiment includes the total demand determination unit 213. The instruction output unit 214 determines the output destination of the power supply instruction R based on the total demand DM and the priority PR. Because the management system 20 includes the above configuration, it is possible to allocate the total amount of power supplied from the multiple electric vehicles 30 to the independent grid 11 to each moving object according to the priority PR of each electric vehicle 30.

[0118] Furthermore, in the management system 20 according to this embodiment, the power supply instruction R includes an instruction for the total amount of power to be supplied from each of the electric vehicles 30 to the independent grid 11. Because the management system 20 has the above configuration, it is possible to switch the amount of power that each electric vehicle 30 supplies to the independent grid 11 according to the priority PR of each electric vehicle 30.

[0119] Furthermore, in the management system 20 according to this embodiment, the power supply instruction R includes an instruction for the amount of power to be supplied per hour from each of the electric vehicles 30 to the independent grid 11. Because the management system 20 has the above configuration, it is possible to switch between supplying power quickly or slowly to the independent grid 11 according to the priority PR of each electric vehicle 30.

[0120] 3: Third embodiment Hereinafter, a management system 20 according to the third embodiment and a power system 100 including the management system 20 will be described with reference to Figures 19 to 22. Note that, for the sake of simplicity, the following mainly describes the differences between the management system 20 according to the third embodiment and the power system 100 including the management system 20 and the power system 100 including the management system 20 and the first embodiment. Furthermore, the same components of the management system 20 according to the third embodiment and the power system 100 including the management system 20 and the power system 100 including the management system 20 and the first embodiment will be designated by the same reference numerals, and descriptions of their functions may be omitted.

[0121] 3-1: Overview of the third embodiment Hereinafter, an outline of the configuration of the power system 100 according to this embodiment will be described with reference to FIG.

[0122] In the first embodiment, as shown in the simulation diagram of FIG. 5 , the amount of power supplied per hour from electric vehicles 30A to 30C to the independent grid 11 was the same for all electric vehicles 30A to 30C. This was based on the premise that the same power receiving equipment 50 was used for all electric vehicles 30A to 30C as the power receiving equipment 50 that supplies power from electric vehicles 30A to 30C to the independent grid 11. On the other hand, in the present embodiment, the power receiving equipment 50 used by each of electric vehicles 30A to 30C to supply power to the independent grid 11 is not the same for all electric vehicles 30A to 30C. More specifically, the management system 20 of the present embodiment assigns an appropriate power receiving equipment 50 to each of electric vehicles 30A to 30C in accordance with the hourly power supplyable amount EA of each electric vehicle 30A to 30C.

[0123] FIG. 19 is a simulation diagram showing a power supply method for supplying power from the electric vehicle 30 to the independent system 11 in this embodiment. As shown in FIG. 19, in the original plan, the power receiving facility 50D used by the electric vehicle 30B to supply power to the independent system 11 was the same as the power receiving facility 50D used by the electric vehicles 30A and 30C to supply power to the independent system 11. For this reason, as in the reference example of FIG. 4, the amount of power that should have been supplied from the electric vehicle 30B to the independent system 11 from time t5 to time t6 is not supplied to the independent system 11. Therefore, as shown in FIG. 19, the management system 20 of this embodiment changes the power receiving facility used by the electric vehicle 30B to supply power to the independent system 11 to the power receiving facility 50E, which has a higher hourly power supply rate than the power receiving facility 50D. More specifically, the management system 20 of this embodiment changes the power receiving equipment used by the electric vehicle 30B to supply power to the independent grid 11 from the power receiving equipment 50D to the power receiving equipment 50E based on the hourly power supply capacity EA, which is the power supply capacity of the electric vehicle 30B divided by the time from time t3 to time t5.

[0124] 19, the electric vehicle 30B may start supplying power to the independent grid 11 before time t3. Similarly, the electric vehicle 30C may start supplying power to the independent grid 11 before time t5.

[0125] As an example, power receiving equipment 50D is power receiving equipment 50B shown in FIG. 16. As an example, power receiving equipment 50E is power receiving equipment 50A shown in FIG. 16. In this case, as an example, management system 20 displays an instruction to connect to power receiving equipment 50E on a confirmation screen 60 displayed on a display device 44 provided in electric vehicle 30B. A user U of electric vehicle 30B connects electric vehicle 30B to power receiving equipment 50E by visually checking the instruction. As another example, user U of electric vehicle 30B manually changes the route of connection path WR between electric vehicles 30A to 30C and power receiving equipment 50D and power receiving equipment 50E.

[0126] Alternatively, each of the power receiving facilities 50D and 50E may be able to vary the amount of power supplied to the independent grid 11 per hour.

[0127] FIG. 20 is a diagram showing an example of the power receiving facility 50 in the case where the amount of power supplied per hour to the independent grid 11 is variable.

[0128] The power receiving equipment 50 includes eight DC-DC converters 53 connected in parallel and each having an output of 10 kW. The power receiving equipment 50 also includes a switch S in the upstream stage of the eight DC-DC converters 53, which switches the connection between adjacent DC-DC converters 53. The power receiving equipment 50 also includes a DC-AC converter 54 in the downstream stage of the DC-DC converters 53.

[0129] The power receiving equipment 50 can change the number of DCDC converters 53 connected to the electric vehicle 30B by switching the switch S. For example, if the number of DCDC converters 53 connected to the electric vehicle 30B is five, the power receiving equipment 50 has an output of 50 kW from the DCDC converters 53. The power receiving equipment 50 can change the amount of power supplied per hour from the electric vehicle 30B to the independent grid 11 via the power receiving equipment 50 by switching the switch S.

[0130] The power receiving equipment 50 may change the amount of power supplied to the independent grid 11 per unit time by switching the switch S while the electric vehicle 30B is supplying power to the independent grid 11.

[0131] Furthermore, the DC-DC converter 53 that is not connected to the electric vehicle 30B may be connected to another electric vehicle 30. In this case, the electric vehicle 30B and the other electric vehicle 30 share the power receiving facility 50.

[0132] 3-2: Configuration of the third embodiment In the following explanation, differences between the configuration of the management system 20 according to the third embodiment and the configuration of the management system 20 according to the first embodiment will be mainly explained.

[0133] 21 is a block diagram illustrating an example of the functional configuration of the management system 20. The functional configuration of the management system 20 according to this embodiment includes an available power supply amount determination unit 215, a power receiving facility determination unit 216, a first instruction output unit 217, and a second instruction output unit 218, in addition to the acquisition unit 211 and priority determination unit 212 included in the management system 20 according to the first embodiment. That is, in the management system 20 according to this embodiment, the control device 21 executes a program stored in the storage device 22, thereby realizing a plurality of functions (the acquisition unit 211, available power supply amount determination unit 215, power receiving facility determination unit 216, priority determination unit 212, first instruction output unit 217, and second instruction output unit 218) for smoothly operating the provision of power using the electric vehicle 30.

[0134] Similar to the acquisition unit 211 according to the first embodiment, the acquisition unit 211 acquires power supply information SI from the information device 40 provided in each of the electric vehicles 30. The power supply information SI includes the time information SI1 and available power supply amount information SI2.

[0135] The available power supply amount determination unit 215 determines the available power supply amount EA per hour of the power that each of the plurality of electric vehicles 30 supplies to the independent grid 11 via the power receiving facility 50. Specifically, the available power supply amount determination unit 215 determines the available power supply amount EA per hour of each of the plurality of electric vehicles 30 by dividing the available power amount indicated by the available power supply amount information SI2 included in the power supply information SI by the available power supply period ST during which power can be supplied to the independent grid 11, indicated by the time information SI1 included in the power supply information SI.

[0136] The power receiving equipment determination unit 216 determines the power receiving equipment 50 that each of the electric vehicles 30 uses to supply power to the independent grid 11, based on the hourly power supplyable amount EA determined by the power supplyable amount determination unit 215. Specifically, the power receiving equipment determination unit 216 determines a power receiving equipment 50 that supplies a higher amount of power per hour to the independent grid 11 as the hourly power supplyable amount EA increases.

[0137] Similar to the priority determination unit 212 according to the first embodiment, the priority determination unit 212 determines the priority PR for supplying power to the independent grid 11 for each of the electric vehicles 30 based on the time information SI1 acquired by the acquisition unit 211.

[0138] The first instruction output unit 217 outputs an equipment instruction E that specifies the power receiving equipment 50 determined by the power receiving equipment determination unit 216 to one or more electric vehicles 30 out of the plurality of electric vehicles 30 .

[0139] The second instruction output unit 218 outputs a power supply instruction R to one or more electric vehicles 30 among the plurality of electric vehicles 30 based on the priority PR determined by the priority determination unit 212 and the hourly power supply amount EA determined by the power supply amount determination unit 215.

[0140] As in the first embodiment, the power supply instruction R includes power supply period information RI1 and power supply amount information RI2.

[0141] The power supply period information RI1 is information that instructs the electric vehicle 30 on the period (hereinafter referred to as the "power supply period") during which power should be supplied to the independent grid 11. The power supply amount information RI2 is information that instructs the electric vehicle 30 on the amount of power per hour to be supplied to the independent grid 11 during the power supply period indicated by the power supply period information RI1.

[0142] As an example, the power supply period information RI1 according to this embodiment is power supply period information similar to the power supply period information RI1 according to the first embodiment. Also, as an example, the hourly supply amount of power supplied to the independent grid 11 indicated by the power supply amount information RI2 is the hourly available power supply amount EA determined by the available power supply amount determination unit 215.

[0143] 3-3: Operation of the third embodiment 22 is a flowchart of a process (hereinafter referred to as "management process") executed by the control device 21 of the management system 20. The management process is repeated, for example, at predetermined intervals.

[0144] When the management process is started, the control device 21 (acquisition unit 211) acquires the power supply information SI (step Sa21). Specifically, the control device 21 acquires the power supply information SI from the information device 40 provided in each of the plurality of electric vehicles 30. As described above, the power supply information SI includes time information SI1 and available power supply amount information SI2.

[0145] The control device 21 (available power supply amount determination unit 215) determines the available power supply amount per hour EA (step Sa22). Specifically, the available power supply amount determination unit 215 determines the available power supply amount per hour EA for each of the plurality of electric vehicles 30 by dividing the amount of power that can be supplied indicated by the available power supply amount information SI2 included in the power supply information SI acquired in step Sa21 by the available power supply period ST indicated by the time information SI1 included in the power supply information SI.

[0146] The control device 21 (power receiving facility determination unit 216) determines the power receiving facility 50 (step Sa23). Specifically, the control device 21 determines the power receiving facility 50 to be used by each of the plurality of electric vehicles 30 to supply power to the independent grid 11, based on the hourly power supplyable amount EA determined in step Sa22.

[0147] The control device 21 (priority determination unit 212) determines the priority PR (step Sa24). Specifically, the control device 21 determines the priority PR for supplying power to the independent grid 11 for each of the electric vehicles 30 based on the time information SI1 acquired in step Sa11.

[0148] The control device 21 (first instruction output unit 217) outputs the equipment instruction E (step Sa25). Specifically, the control device 21 outputs the equipment instruction E that specifies the power receiving equipment 50 to one or more electric vehicles 30 out of the multiple electric vehicles 30 in step Sa23.

[0149] The control device 21 (second instruction output unit 218) outputs a power supply instruction R (step Sa26). Specifically, the control device 21 outputs the power supply instruction R to one or more electric vehicles 30 among the plurality of electric vehicles 30 based on the priority PR determined in step Sa24 and the hourly available power supply amount EA determined in step Sa22.

[0150] 3-4: Effects of the third embodiment As described above, the management system 20 according to this embodiment includes the acquisition unit 211, the available power supply amount determination unit 215, the priority determination unit 212, the first instruction output unit 217, and the second instruction output unit 218. The acquisition unit 211 acquires time information SI1 indicating the end time of a power supply available period ST during which power can be supplied by each of the multiple electric vehicles 30 that can supply power to the independent grid 11 via the power receiving equipment 50. The available power supply amount determination unit 215 determines the available power supply amount per hour EA for each of the multiple electric vehicles 30. The priority determination unit 212 determines the priority PR for supplying power to the independent grid 11 for each of the multiple electric vehicles 30, based on the available power supply amount per hour EA. The first instruction output unit 217 outputs an equipment instruction E to one or more of the multiple electric vehicles 30, based on the available power supply amount per hour EA, to specify the power receiving equipment 50 to be used to supply power to the independent grid 11. The second instruction output unit 218 outputs a power supply instruction R that specifies the power supply period to one or more electric vehicles 30 among the multiple electric vehicles 30, or to a power supply device that accepts power supply from one or more electric vehicles 30, based on the priority PR and the amount of power that can be supplied per hour EA. The management system 20, having the above configuration, can more effectively utilize the electric vehicles 30 that transport electricity compared to the prior art. Specifically, the management system 20 specifies the power receiving equipment 50 to be used to supply electricity to the independent grid 11 based on the hourly power supply capacity EA, thereby reducing the occurrence of electric vehicles 30 that are unable to supply electricity to the independent grid 11 despite staying in the target area A1 where the independent grid 11 is installed.

[0151] Furthermore, in the management system 20 according to this embodiment, the power receiving facility 50 is capable of varying the amount of power supplied to the independent grid 11 per unit time. The management system 20 has the above-described configuration, and therefore can change the amount of power supplied per hour while the electric vehicle 30 is feeding power to the independent grid 11.

[0152] 4: Variation Specific modified embodiments that can be added to each of the embodiments exemplified above are exemplified below. Two or more embodiments arbitrarily selected from the following examples may be combined as appropriate within the scope of not being mutually contradictory.

[0153] 4-1: Variation 1 In the above embodiment, the acquisition unit 211 may calculate the end time based on travel schedule data indicating the travel schedule of each of the multiple electric vehicles 30. The travel schedule data is stored in, for example, the storage device 22 or the storage device 42. The acquisition unit 211 identifies the time when the electric vehicle 30 travels from the target area A1 to the external area A2 (hereinafter referred to as the "travel time") from the travel schedule data, and estimates the end time of the power supply available period ST based on the travel time. For example, the acquisition unit 211 estimates, as the end time of the power supply available period ST, a time that is earlier than the travel time by the standard time required to travel from the power receiving equipment 50 to the boundary between the target area A1 and the external area A2.

[0154] By calculating the end time based on predetermined travel schedule data, the user U of the electric vehicle 30 does not have to manually input the end time of the power supply period ST or the time when the electric vehicle 30 will move out of the target area A1 before power is supplied.

[0155] 4-2: Variation 2 In the above embodiment, the acquisition unit 211 may calculate the end time based on movement history data indicating the movement history of each of the multiple electric vehicles 30. The movement history data is stored in the storage device 22 or the storage device 42, for example.

[0156] As an example, the acquisition unit 211 calculates the end time based on the travel time when the electric vehicle 30 traveled from the target area A1 to the external area A2 in the past from the travel history indicated by the travel history data. As in the first modification, for example, the acquisition unit 211 estimates, as the end time of the power supply possible period ST, a time that is earlier than the travel time by the standard time required to travel from the power receiving equipment 50 to the boundary between the target area A1 and the external area A2.

[0157] By calculating the end time based on past movement history data, the user U of the electric vehicle 30 does not have to manually input the end time of the power supply period ST or the time when the electric vehicle 30 moves out of the target area A1 before power is supplied.

[0158] 4-3: Variation 3 In the above embodiment, the acquisition unit 211 acquires power supply information SI from the information device 40 provided in each of the multiple electric vehicles 30. The power supply information SI includes time information SI1. The time information SI1 indicates the start time and end time of the power supply possible period ST. In other words, the acquisition unit 211 acquires the end time of the power supply possible period ST from the information device 40.

[0159] In the first modification, the acquisition unit 211 calculates the end time based on travel schedule data indicating the travel schedule of each of the electric vehicles 30.

[0160] In the second modification, the acquisition unit 211 calculates the end time based on movement history data indicating the movement history of each of the electric vehicles 30.

[0161] In the third modification, the acquiring unit 211 may add or subtract a time length expected as an error to the end time acquired from the information device 40 or the end time calculated by the acquiring unit 211.

[0162] More specifically, the storage device 22 or the storage device 42 stores history data indicating a pair of a first end time previously acquired from the information device 40 or a first end time calculated by the acquisition unit 211 and a second end time at which the electric vehicle 30 actually ended power supply. The acquisition unit 211 adds or subtracts a length of time expected as an error to the currently acquired or currently calculated first end time based on the difference between the past first end time and the second end time calculated from the history data.

[0163] As an example, the acquisition unit 211 adds or subtracts the average value of the above-mentioned differences in the past to or from the first end time acquired or calculated this time.

[0164] 4-4: Variation 4 In the above embodiment, the priority determination unit 212 determines the priority PR so that the earlier the end time of the power supply possible period ST indicated by the time information SI1, the higher the priority of the electric vehicle 30. Alternatively, the priority determination unit 212 determines the priority PR based on the amount of charge remaining in each electric vehicle 30 after power is supplied to the independent grid 11, in addition to the end time of the power supply possible period ST.

[0165] The priority determination unit 212 may determine the priority PR based on factors other than the end time of the power supply available period ST and the amount of charge remaining in each electric vehicle 30. Alternatively, the priority determination unit 212 may determine the priority PR based on factors further in addition to at least one of the end time of the power supply available period ST and the amount of charge remaining in each electric vehicle 30.

[0166] For example, the priority determination unit 212 may determine the priority PR based on the distance that the electric vehicle 30 is expected to travel after the end time of the power supply available period ST.

[0167] 4-5: Variation 5 If the management system 20 is equipped with a distributed power generation facility that generates electricity using renewable energy such as solar or wind power as an electric power facility other than the storage system 12, surplus electricity from the power generation facility may be charged into a storage battery 31 provided in the electric vehicle 30.

[0168] 4-6: Variation 6 In the above embodiment, the instruction output unit 214 outputs a power supply instruction R to one or more electric vehicles 30 among the plurality of electric vehicles 30. However, the instruction output unit 214 may also output the power supply instruction R to a power supply device including a power receiving facility 50 that accepts power supply from the electric vehicle 30 and the power storage system 12.

[0169] 4-7: Variation 7 In the third embodiment, the first instruction output unit 217 outputs an equipment instruction E to one or more of the multiple electric vehicles 30, based on the hourly power supplyable amount EA, specifying the power receiving equipment 50 to be used to supply power to the independent grid 11. More specifically, in the third embodiment, the power receiving equipment determination unit 216 determines the power receiving equipment 50 to be used by each of the multiple electric vehicles 30 to supply power to the independent grid 11, based on the hourly power supplyable amount EA determined by the power supplyable amount determination unit 215. Then, the first instruction output unit 217 outputs an equipment instruction E to one or more of the multiple electric vehicles 30, specifying the power receiving equipment 50 determined by the power receiving equipment determination unit 216.

[0170] However, the first instruction output unit 217 may output, based on the time information SI1, an equipment instruction E that specifies, to one or more of the multiple electric vehicles 30, the power receiving equipment 50 to be used to supply power to the independent grid 11. More specifically, the first instruction output unit 217 may output, based on the power supply available period ST, an equipment instruction E that specifies, to one or more of the multiple electric vehicles 30, the power receiving equipment 50 to be used to supply power to the independent grid 11. Even more specifically, the shorter the power supply available period ST, the more the first instruction output unit 217 may output an equipment instruction E that specifies the power receiving equipment 50 that supplies a higher amount of power per hour to the independent grid 11.

[0171] 4-8: Variation 8 In the third embodiment, the control device 21 may be configured not to include the priority determination unit 212. In this case, the second instruction output unit 218 outputs a power supply instruction R to one or more of the multiple electric vehicles 30 based on, for example, the time information SI1 acquired by the acquisition unit 211 and the hourly available power supply amount EA determined by the available power supply amount determination unit 215. The power supply period indicated by the power supply period information RI1 included in the power supply instruction R is, for example, the same period as the available power supply period ST indicated by the time information SI1. Furthermore, the supply amount per hour of power supplied to the independent grid 11 indicated by the power supply amount information RI2 is the hourly available power supply amount EA determined by the available power supply amount determination unit 215. [Explanation of symbols]

[0172] 11...independent system, 12...energy storage system, 12A...storage battery, 13...electrical load, 13A...electrical load, 13B...electrical load, 20...management system, 21...control device, 22...storage device, 23...communication device, 30...electric vehicle, 30A...electric vehicle, 30B...electric vehicle, 30C...electric vehicle, 31...storage battery, 40...information device, 41...control device, 42...storage device, 43...communication device, 44...display device, 45...operation device, 50...power receiving equipment, 50A...power receiving equipment, 50B...power receiving equipment, 50C...power receiving equipment, 50D...power receiving equipment, 50E...power receiving equipment, 51...notification area, 52...operation area, 53...DCDC converter, 54...DCAC converter, 60...confirmation screen, 91...power system, 92...communication network, 100...power system, 211...acquisition unit, 212...priority determination unit, 213...total demand amount determination unit, 214...instruction output unit, 215...power supply available amount determination unit, 216...power receiving equipment determination unit, 217...first instruction output unit, 218...second instruction output unit, 521...operator, 52 2...operator, A1...target area, A2...external area, D1...identification information, D2...destination information, DM...total demand, E...equipment instruction, EA...hourly power supply available amount, PR...priority, PR1...first priority, PR2...second priority, PR3...third priority, Q...response information, R...power supply instruction, RI...instruction information, RI1...power supply period information, RI2...power supply amount information, S...switch, SI...power supply information, SI1...time information, SI2...power supply available amount information, ST...power supply available period, ST1...power supply available period, ST 2...Period during which power can be supplied, ST3...Period during which power can be supplied, T...Elapsed time, U...User, V11...Amount of power, V12...Amount of power, V13...Amount of power, V14...Amount of power, V2...Amount of power, V3...Amount of power, V31...Amount of power, WR...Connection path, dm1...Amount of power, dm2...Amount of power, m0...Amount of charging, v11...Amount of supply per hour, v12...Amount of supply per hour, v13...Amount of supply per hour, v14...Amount of supply per hour, v2...Amount of supply per hour, v3...Amount of supply per hour, v31...Amount of supply per hour

Claims

1. A management system for managing independent power, an acquisition unit that acquires time information indicating an end time of a power supply period during which power can be supplied by each of a plurality of mobile objects that can supply power to the independent grid; a priority determination unit that determines a priority for supplying power to the independent system in each of the plurality of mobile objects based on the time information; an instruction output unit that outputs a power supply instruction that specifies a power supply period to one or more moving bodies among the plurality of moving bodies or a power supply device that accepts power supply from the one or more moving bodies based on the priority; A management system comprising:

2. the priority determination unit further determines the priority based on a charge amount remaining in each of the one or more mobile objects after power is supplied to the independent system. The management system according to claim 1 .

3. a total demand amount determination unit that determines a total demand amount of power in the independent system; the instruction output unit determines an output destination of the power supply instruction based on the total demand amount and the priority. The management system according to claim 1 .

4. the power supply instruction includes an instruction for a total amount of power supply from each of the plurality of moving bodies to the independent power system. The management system according to claim 1 or 3.

5. the power supply instruction includes an instruction for an amount of power to be supplied per hour from each of the plurality of moving bodies to the independent grid; The management system according to claim 3 .

6. the acquisition unit calculates the end time based on travel schedule data indicating travel schedules of each of the plurality of moving objects; The management system according to claim 1 .

7. the acquisition unit calculates the end time based on movement history data indicating a movement history of each of the plurality of moving objects; The management system according to claim 1 .

8. The mobile object is an electric vehicle equipped with a storage battery capable of providing power to the independent grid. The management system according to claim 1 .

9. the plurality of moving bodies include a first moving body and a second moving body, The first moving body is capable of supplying power from a first starting point to a first ending point, the second moving body is capable of supplying power from a second starting point to a second ending point; the second starting point is a point in time later than the first starting point, When the first end point is a time point later than the second end point, the instruction output unit outputs a power supply instruction to the first moving body or a power supply device that accepts power supply from the first moving body, the power supply instruction specifying a first power supply period included in a period from the first start point to the second start point and a second power supply period included in a period from the second end point to the first end point; the instruction output unit outputs a power supply instruction to the second moving body or a power supply device that accepts power supply from the second moving body, the power supply instruction specifying a third power supply period included in a period from the second start point to the second end point. The management system according to claim 1 .

10. Independent systems and a management system for managing the power of the independent system, The management system includes: an acquisition unit that acquires time information indicating an end time of a power supply period during which power can be supplied by each of a plurality of mobile objects that can supply power to the independent grid; a priority determination unit that determines a priority for supplying power to the independent system in each of the plurality of mobile objects based on the time information; an instruction output unit that outputs a power supply instruction specifying a power supply period to one or more moving bodies among the plurality of moving bodies or a power supply device that accepts power supply from the one or more moving bodies based on the priority, Power system.

11. A management system for managing independent power, an acquisition unit that acquires time information indicating an end time of a power supply period during which power can be supplied by each of a plurality of mobile objects that can supply power to the independent grid via a power receiving facility; an available power supply amount determination unit that determines an available power supply amount per hour for each of the plurality of moving bodies; a priority determination unit that determines a priority for supplying power to the independent system in each of the plurality of mobile objects based on the time information; a first instruction output unit that outputs, to one or more of the plurality of mobile bodies, an equipment instruction that specifies a power receiving facility to be used to supply power to the independent grid, based on the hourly power supply available amount; a second instruction output unit that outputs a power supply instruction that specifies a power supply period to one or more moving bodies among the plurality of moving bodies or a power supply device that accepts power supply from the one or more moving bodies based on the priority and the hourly available power supply amount; A management system comprising:

12. The power receiving facility has a variable hourly supply amount of power to the independent system. The management system according to claim 11.

13. A management system for managing independent power, an acquisition unit that acquires time information indicating an end time of a power supply period during which power can be supplied by each of a plurality of mobile objects that can supply power to the independent grid via a power receiving facility; an available power supply amount determination unit that determines an available power supply amount per hour for each of the plurality of moving bodies; a priority determination unit that determines a priority for supplying power to the independent system in each of the plurality of mobile objects based on the time information; a first instruction output unit that outputs, to one or more of the plurality of mobile bodies based on the time information, an equipment instruction that specifies a power receiving facility to be used to supply power to the independent system; a second instruction output unit that outputs a power supply instruction that specifies a power supply period to one or more moving bodies among the plurality of moving bodies or a power supply device that accepts power supply from the one or more moving bodies based on the priority and the hourly available power supply amount; A management system comprising:

14. A management system for managing independent power, an acquisition unit that acquires time information indicating a start time and an end time of a power supply possible period during which power can be supplied by each of a plurality of mobile objects that can supply power to the independent grid via a power receiving facility; an available power supply amount determination unit that determines an available power supply amount per hour for each of the plurality of moving bodies; a first instruction output unit that outputs, to one or more of the plurality of mobile bodies, an equipment instruction that specifies a power receiving facility to be used to supply power to the independent grid, based on the hourly power supply available amount; a second instruction output unit that outputs a power supply instruction to one or more of the plurality of moving bodies or a power supply device that accepts power supply from the one or more moving bodies, based on the time information and the hourly power supply available amount, to specify the power supply available period as a power supply period and to specify the hourly power supply available amount as an hourly supply amount of power to be supplied to the independent grid; A management system comprising:

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