JP6913728B2 - Management equipment, management methods, and programs - Google Patents

Description

The present invention relates to management devices, management methods, and programs.

A system that exchanges electric power between an electric power system and a vehicle is known. For example, there is known a power supply system that communicates with a vehicle that can generate commercial power and supply it to the outside of the vehicle, and requests the vehicle to generate commercial power based on the information acquired from the vehicle (for example,). See Patent Document 1).

Japanese Unexamined Patent Publication No. 2006-345621

However, in the conventional technology, how much electric power is interchanged between the electric power system and the vehicle has not been sufficiently examined.

The present invention has been made in consideration of such circumstances, and provides a management device, a management method, and a program capable of accurately deriving the amount of electric power interchanged between the electric power system and the vehicle. That is one of the purposes.

The management device, management method, and program according to the present invention have adopted the following configurations.
(1): The management device according to one aspect of the present invention is a management device that manages the transfer of power between the power system and a secondary battery mounted on the vehicle and storing power for traveling, and is the vehicle. From the acquisition unit that acquires charge / discharge performance information including at least one of the discharge performance or charge performance per unit time of the secondary battery, and the first including the peak of power demand based on the charge / discharge performance information. The amount of assisted electric energy that can be provided from the secondary battery to the electric power system in one period, or the electric energy provided from the electric power system in the second period including the minimum value of the electric power demand, and the secondary battery is charged. It is provided with a derivation unit for deriving at least one of the stock power amounts of possible power.

(2): In the aspect of (1) above, the acquisition unit further acquires the remaining fuel amount information indicating the remaining fuel remaining amount of the secondary battery, and the extraction unit further acquires the charge / discharge performance information and the remaining amount. Based on the fuel amount information, a dischargeable potential indicating how much power the secondary battery can provide to the power system in the first period is derived, and the dischargeable potential is derived based on the derived dischargeable potential. It derives the amount of assist power.

(3): In the aspect of (1) above, the acquisition unit further acquires the remaining fuel amount information indicating the remaining fuel remaining amount of the secondary battery, and the extraction unit further acquires the charge / discharge performance information and the remaining amount. Based on the fuel amount information, a rechargeable potential indicating how much the secondary battery can hold the electric power provided by the electric power system in the second period is derived, and based on the derived rechargeable potential. Therefore, the stock electric energy is derived.

(4): In the aspect of (1) above, the acquisition unit parks the vehicle in a parking facility provided with an external power supply device that relays the transfer of power between the power system and the secondary battery. Further, the reservation information indicating the reservation contents for the purpose is further acquired, and the derivation unit is included in the first period of the period in which the vehicle is parked in the parking facility based on the charge / discharge performance information and the reservation information. Discharge indicating how much power the secondary battery can provide to the power system in the first period based on the time length of the prepared preparation period derived. It derives the possible potential.

(5): In the aspect of (1) above, the acquisition unit parks the vehicle in a parking facility provided with an external power supply device that relays the transfer of power between the power system and the secondary battery. Further, the reservation information indicating the reservation contents for the purpose is further acquired, and the derivation unit is included in the second period of the period in which the vehicle is parked in the parking facility based on the charge / discharge performance information and the reservation information. The time length of the prepared preparation period is derived, and based on the time length of the derived preparation period, how much the secondary battery can hold the power provided by the power system in the second period is determined. It derives the rechargeable potential shown.

(6): In any of the above aspects (1) to (5), the lead-out unit further obtains the demand power supply area to which the power system supplies the demand power and the power discharged from the vehicle. Based on the positional relationship with the charging / discharging equipment provided to the power system, the assist power amount to be allocated to the power demand supply area is derived.

(7): In any of the above aspects (1) to (6), the acquisition unit further fills the usage period information regarding the usage period of the secondary battery or the number of times of charging / discharging of the secondary battery. The discharge frequency information is acquired, and the derivation unit further derives the discharge performance changed according to the deterioration of the secondary battery based on the usage period information or the charge / discharge count information, and is based on the derived discharge performance. The assist power amount is derived.

(8): In any of the above aspects (1) to (7), the acquisition unit further arrives at the charging / discharging facility that provides the electric power discharged from the vehicle to the electric power system. The estimated arrival time information regarding the time is acquired, and the derivation unit further derives the assist power amount that can be provided after a predetermined time based on the estimated arrival time information.

(9): In any of the above aspects (1) to (8), the lead-out unit is in an emergency based on the remaining fuel amount of the secondary battery and the charge / discharge performance information. The emergency assist power amount of the power that can be provided to the power system is derived from the secondary battery in three periods.

(10): In the management method according to the aspect of the present invention, the computer manages the transfer of electric power between the electric power system and the secondary battery mounted on the vehicle and storing the electric power for traveling, and the electric power is transferred from the vehicle. Charge / discharge performance information including at least one of the discharge performance or charge performance per unit time of the secondary battery is acquired, and based on the charge / discharge performance information, the secondary is in the first period including the peak of power demand. The amount of assisted power of the power that can be provided from the battery to the power system, or the stock power of the power that is provided by the power system and can be charged by the secondary battery in the second period including the minimum value of the power demand. It is a method of deriving at least one of the quantities.

(11): The program according to the aspect of the present invention causes a computer to manage the transfer of electric power between an electric power system and a secondary battery mounted on a vehicle and storing electric power for traveling, and from the vehicle, the above two. Charge / discharge performance information including at least one of the discharge performance or charge performance per unit time of the secondary battery is acquired, and based on the charge / discharge performance information, the secondary battery is used in the first period including the peak of power demand. The amount of assisted power of the power that can be provided to the power system, or the stock power of the power that is provided from the power system and can be charged by the secondary battery in the second period including the minimum value of the power demand. It is a program that derives at least one of them.

According to (1) to (11), the amount of electric power interchanged between the electric power system and the vehicle can be accurately derived.

It is a figure which shows an example of the configuration and use environment of the V2G system 1 including the management apparatus which concerns on this embodiment. It is a block diagram which shows an example of the structure of management apparatus 400. It is a figure which shows an example of the content of the vehicle-related information 431. It is a figure which shows an example of the content of the user setting information 432. It is a figure which shows an example of the content of the parking schedule information 433. It is a figure which shows an example of the electric power demand forecast. It is a figure which shows an example of the change of SOC of a vehicle 300. It is a flowchart which shows an example of the derivation method of the assist electric energy. It is a figure which shows another example of the change of SOC of a vehicle 300. It is a flowchart which shows an example of the derivation method of the assist electric energy.

[First Embodiment]
Hereinafter, embodiments of the management device, management method, and program of the present invention will be described with reference to the drawings. In the following description, the vehicle is assumed to be an electric vehicle equipped with a secondary battery, but the vehicle is a vehicle capable of storing power from the outside and is equipped with a secondary battery that supplies power for traveling. It may be a hybrid vehicle or a fuel cell vehicle as long as it is a vehicle. The vehicle is, for example, a plug-in hybrid car.

[Overview of V2G system]
First, the outline of the V2G (Vehicle to Grid) system will be described. The V2G system is a system that exchanges electric power between a vehicle and an electric power system including a commercial power grid. Power interchange includes both power supply from the power system to the vehicle and power supply from the vehicle to the power system. In the V2G system, when the vehicle is not used as a means of transportation (for example, while parking), the secondary battery mounted on the vehicle is used as the power storage facility. Therefore, bidirectional power transfer is performed between the vehicle participating in V2G and the power system.

[overall structure]
FIG. 1 is a diagram showing an example of the configuration and usage environment of the V2G system 1 including the management device according to the present embodiment. As shown in FIG. 1, the V2G system 1 manages the electric power company 100, a plurality of external power supply devices 200 (200-1,200-2,200-3,200-4, ...), And a vehicle 300. The device 400 and the user terminal 500 are included. In the following description, when one of the external power supply devices 200-1, 200-2, 200-3, 200-4, ... Is not specified, it is referred to as an external power supply device 200. Although one vehicle 300 is shown in FIG. 1, there may be a plurality of vehicles 300.

First, an example of the usage environment of the V2G system 1 will be described. The external power supply device 200 is installed in, for example, a parking facility 260 in which a plurality of vehicles can be parked. The external power supply device 200 relays, for example, the transfer of electric power between the electric power system and the vehicle-mounted battery 310. Parking facility 260 also includes a charging station. Not limited to this, the plurality of external power supply devices 200 may be installed, for example, at the home of the user of the vehicle 300, the company where the user works, the accommodation used by the user, and the like. Hereinafter, an example in which the external power supply device 200 is installed in the parking facility 260 will be described.

After parking the vehicle 300 in the parking facility 260, for example, the user connects the vehicle 300 to the external power supply device 200. The management device 400 controls the vehicle 300 to supply electric power via the external power supply device 200, and also controls the vehicle 300 to receive electric power. That is, the management device 400 controls so as to exchange electric power between the electric power system including the commercial power grid and the vehicle 300. The interchange of electric power includes power supply from the electric power system to the vehicle 300 and electric power supply from the vehicle 300 to the electric power system.

The electric power company 100 and the external power supply device 200 are connected to each other via a transmission line 240. The external power supply device 200 and the vehicle 300 are connected via a cable 220. The cable 220 is a power supply cable and may include a signal line. Alternatively, the cable 220 may have a signal superimposed on the power supply cable.

The management device 400 and the external power supply device 200 are connected via a network NW. The network NW includes, for example, the Internet, a WAN (Wide Area Network), a LAN (Local Area Network), a provider device, a radio base station, and the like. The management device 400 may directly communicate with the vehicle 300 via the network NW. The management device 400 and the user terminal 500 are connected via a network NW.

[Electric power company 100]
The electric power company 100 includes a power plant that generates electricity from energy such as thermal power, wind power, nuclear power, or solar power, and supplies electric power to, for example, an assigned area. The area here may be defined in any way, and the area may be defined in units of administrative divisions such as prefectures and municipalities, or in units of jurisdiction of substations. May be good. The example shown in FIG. 1 is an example of one area, and the electric power company 100 is one example. For example, the electric power company 100 transmits the electric power demand forecast information indicating the daily electric power demand forecast for each hour in the area corresponding to the electric power company 100 to the management device 400 via the network NW. Further, the electric power company 100 manages, for example, power generation amount prediction information indicating the daily power generation amount predicted for each power generation type for each hour in the area corresponding to the electric power company 100 via the network NW. Send to 400. The power generation amount prediction includes the predicted value of the power generation amount by thermal power generation, the predicted value of the power generation amount by wind power generation, the predicted value of the power generation amount by nuclear power, the predicted value of the power generation amount by solar power, and the like.

[External power supply 200]
The external power supply device 200 includes, for example, a housing 202, a control device 204, a communication unit 206, and a cable connection port 208.

The plurality of external power supply devices 200-1, 200-1, ... Each communicate with the management device 400 via the network NW. Further, the external power supply device 200 is connected to the electric power company 100 via the transmission line 240, and is connected to the vehicle 300 via the cable connection port 208 and the cable 220.

The external power supply device 200 outputs the charge / discharge instruction received from the management device 400 via the network NW to the vehicle 300 via the cable connection port 208 and the cable 220. The charge / discharge instructions include a charging instruction instructing the vehicle 300 to receive the power supply from the electric power company 100 and a discharging instruction instructing the electric power company 100 to discharge the electric power from the secondary battery of the vehicle 300. included. The details of the charge / discharge instruction will be described later.

The external power supply device 200 acquires various information output by the vehicle 300 via the cable 220 and the cable connection port 208, and transmits the acquired various information to the management device 400 via the network NW. The various vehicle information includes, for example, residual fuel amount information (for example, SOC), battery voltage value, battery current value, discharge performance information, charging performance information, and the like. The discharge performance information includes, for example, the fastest value of the discharge speed of the vehicle 300, the maximum value of the amount of electric power that the vehicle 300 can discharge per unit time, and the like. The charging performance information includes, for example, the fastest value of the charging speed of the vehicle 300, the maximum value of the amount of electric power that the vehicle 300 can charge per unit time, and the like.

For example, when the secondary battery of the vehicle 300 is charged, the external power supply device 200 supplies the electric power provided by the electric power company 100 via the transmission line 240 to the vehicle 300 via the cable 220. On the other hand, when the secondary battery of the vehicle 300 is discharged, the external power supply device 200 supplies the electric power provided by the vehicle 300 via the cable 220 to the electric power company 100 via the transmission line 240. The external power supply device 200 may include a charge / discharge control unit that controls charge / discharge to the vehicle 300, and may directly instruct the charge / discharge of the vehicle 300.

For example, the control device 204 and the communication unit 206 are built in the housing 202.

The control device 204 acquires various information output from the vehicle 300 from the vehicle 300 via the cable 220 and the cable connection port 208. The control device 204 outputs the acquired various information to the communication unit 206 with the transmission destination as the management device 400. The control device 204 outputs the charge / discharge instruction output from the communication unit 206 to the vehicle 300 via the cable 220 and the cable connection port 208.

The communication unit 206 receives the charge / discharge instruction transmitted by the management device 400 via the network NW, and outputs the received charge / discharge instruction to the control device 204. The communication unit 206 transmits various information output by the control device 204 to the management device 400 via the network NW.

The cable connection port 208 is formed by opening on the outer surface of the housing 202. A cable 220 can be connected to the cable connection port 208.

The cable 220 includes a first plug 222 and a second plug 224. The first plug 222 is connected to the cable connection port 208 of the external power supply device 200, and the second plug 224 is connected to the connector 350 of the vehicle 300.

[Vehicle 300]
The vehicle 300 includes, for example, an in-vehicle battery 310 (secondary battery), a battery sensor 320, a vehicle control unit 330, a vehicle storage unit 340, and a connector 350. Although not shown, the vehicle 300 also includes an inverter, a motor, a transmission, wheels, and the like.

The in-vehicle battery 310 is a secondary battery such as a lithium ion battery. The in-vehicle battery 310 stores electric power and discharges the stored electric power according to the control of the vehicle control unit 330.

The battery sensor 320 detects, for example, the current value and the voltage value of the vehicle-mounted battery 310, and outputs the detected current value and the voltage value to the vehicle control unit 330.

The vehicle control unit 330 derives the remaining fuel amount of the vehicle-mounted battery 310 based on the current value and the voltage value of the vehicle-mounted battery 310 output by the battery sensor 320. The remaining fuel amount of the vehicle-mounted battery 310 may be the SOC (State Of Charge; charge rate) of the vehicle-mounted battery 310, or may be the charge amount. Hereinafter, an example in which the remaining fuel amount of the vehicle-mounted battery 310 is SOC will be described. For example, the vehicle control unit 330 uses, for example, a current integration method or an OCV (Open Circuit Voltage) estimation method to derive the SOC of the vehicle-mounted battery 310 at predetermined time intervals, for example.

The vehicle control unit 330 derives a discharge performance value indicating the discharge performance per unit time of the battery sensor 320 based on the battery current value and the battery voltage value of the vehicle-mounted battery 310 output by the battery sensor 320. For example, the vehicle control unit 330 derives the discharge speed based on the battery voltage value at the time of discharge and the battery current value at the time of discharge. The discharge speed is expressed as, for example, 1 sec 100 kW, 10 sec 70 kW, 100 sec 50 kW, or the like. The vehicle control unit 330 derives the charging speed based on the battery voltage value at the time of charging and the battery current value at the time of charging.

The vehicle control unit 330 controls charging / discharging to the vehicle-mounted battery 310 based on the charging / discharging instruction output from the external power supply device 200 and the derived SOC. The vehicle control unit 330 reads out the vehicle ID stored in the vehicle storage unit 340. The vehicle ID is identification information that identifies each of the vehicles 300.

The vehicle control unit 330 associates the vehicle ID with the above-mentioned remaining fuel amount information, discharge performance information, charging performance information, and the like, and outputs the vehicle ID to the external power supply device 200 via the connector 350 and the cable 220. The vehicle control unit 330 outputs various information to the external power supply device 200 when a predetermined instruction is obtained from the external power supply device 200 or the management device 400 via the connector 350 from the external power supply device 200. May be good.

When the vehicle 300 is not connected to the external power supply device 200, the vehicle control unit 330 supplies electric power to a motor which is a drive source of the vehicle 300 and other devices (not shown) that require electricity. On the other hand, when the vehicle 300 is connected to the external power supply device 200, the vehicle control unit 330 charges and discharges according to the request from the management device 400.

The vehicle storage unit 340 stores vehicle ID, remaining fuel amount information, discharge performance information, charge / discharge performance information, and the like.

The connector 350 is connected to the second plug 224 of the cable 220.

[User terminal 500]
The user terminal 500 is, for example, a terminal such as a mobile phone, a smartphone, or a tablet phone, and communicates with the management device 400 via the network NW. For example, the user terminal 500 receives an operation instruction from the user and transmits reservation information and setting information to the management device 400. The reservation information includes information indicating the time and place where the vehicle 300 is parked in the parking facility 260. The setting information includes various information set by the user and various information set in advance.

[Management device 400]
FIG. 2 is a block diagram showing an example of the configuration of the management device 400. The management device 400 includes, for example, a communication unit 410, a control unit 420, and a storage unit 430.

The communication unit 410 communicates with the electric power company 100, the plurality of external power supply devices 200, and the user terminal 500 via the network NW. The communication unit 410 communicates with the vehicle 300 via the network NW and the external power supply device 200. Not limited to this, the communication unit 410 may directly communicate with the vehicle 300 via the network NW.

The control unit 420 is realized by, for example, a hardware processor such as a CPU (Central Processing Unit) executing a program (software). Some or all of these components are hardware such as LSI (Large Scale Integration), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), GPU (Graphics Processing Unit), etc. It may be realized by (including circuits), or it may be realized by the cooperation of software and hardware. The program may be stored in advance in a storage device (non-transient storage medium) such as an HDD (Hard Disk Drive) or flash memory, or a removable storage medium (non-transient) such as a DVD or CD-ROM. It is stored in a sexual storage medium), and may be installed by attaching the storage medium to a drive device.

The control unit 420 includes, for example, an acquisition unit 421, a reservation unit 422, a determination unit 423, a derivation unit 424, a plan generation unit 425, a start timing estimation unit 426, an arrival time estimation unit 427, and a charge / discharge instruction. A unit 428 is provided. The storage unit 430 stores, for example, vehicle-related information 431, user setting information 432, and parking schedule information 433.

The acquisition unit 421 acquires various information from the vehicle 300 via the network NW and the external power supply device 200. The various information includes, for example, vehicle ID, remaining fuel amount information (for example, SOC), battery voltage value, battery current value, discharge performance information (for example, discharge speed), charge performance information (for example, charge speed), and the like. Is done. The acquisition unit 421 stores various acquired information in the storage unit 430 as a part of the vehicle-related information 431.

The vehicle-related information 431 includes information acquired from the vehicle 300. FIG. 3 is a diagram showing an example of the contents of the vehicle-related information 431. The vehicle-related information 431 is, for example, information in which a vehicle ID is associated with an update date, an SOC, a battery voltage value, a battery current value, a discharge speed, and a charging speed. The update date is the date and time when the SOC, battery voltage value, battery current value, discharge speed, charging speed, etc. are updated with the latest information received from the vehicle 300. In this example, the SOC, battery voltage value, battery current value, discharge speed, and charge speed are overwritten with the latest information, but are not limited to this, and all the information is stored in the storage unit 430. You may leave it.

The acquisition unit 421 acquires the electric power demand forecast information and the power generation amount forecast information from the electric power company 100 via the network NW, and stores them in the storage unit 430.

The acquisition unit 421 acquires reservation information and setting information from the user terminal 500 via the network NW. The acquisition unit 421 outputs the acquired reservation information to the reservation unit 422, and stores the acquired setting information in the storage unit 430 as a part of the user setting information 432.

The user setting information 432 includes information indicating the setting by the user. FIG. 4 is a diagram showing an example of the contents of the user setting information 432. The user setting information 432 is, for example, information in which the target SOC, the average SOC, the minimum SOC, the discharge limit value, and the SOC at the time of departure are associated with the vehicle ID. Note that part or all of the user setting information 432 may be preset for each vehicle 300.

The target SOC is a predetermined maximum rechargeable value for each vehicle 300. That is, it is the SOC when the in-vehicle battery 310 is fully charged (when charging is completed). The minimum SOC is a predetermined minimum value that can be discharged for each vehicle 300. The range from the minimum SOC to the target SOC is an example of the charge / discharge possible range. This chargeable / discharging range may be determined in advance from the viewpoint of preventing deterioration of the in-vehicle battery, or may be arbitrarily set by the user according to the use of the vehicle 300. The target SOC may be 100%, and the minimum SOC may be 0%. The average SOC may be, for example, the average value of the SOC when the vehicle 300 arrives at the parking facility 260 in the past, and may be the average value for each user, each vehicle 300, and each vehicle type. Further, the average SOC is not limited to the past average value, and may be the previous value of the SOC when the vehicle 300 arrives at the parking facility 260, and is the SOC at the start of the previous charging performed by the vehicle 300. May be good.

The discharge limit value is a limit value when discharging the assist power. The discharge limit value is a value larger than the minimum SOC in preparation for the running of the vehicle 300 after leaving the parking facility 260, but may be the same value as the minimum SOC. The SOC at the time of departure is a desired value of the SOC at the time of departure from the parking facility 260, and may be the same as the target SOC, for example.

The reservation unit 422 makes a parking reservation for each user based on the reservation information acquired by the acquisition unit 421. For example, the reservation unit 422 uses information associated with each item of the parking schedule (arrival time and departure time of the parking facility 260, ID of the parking facility 260) as a part of the parking schedule information 433 based on the reservation information. , Registered in the storage unit 430.

The parking schedule information 433 is information indicating the contents of the parking reservation registered based on the reservation information. FIG. 5 is a diagram showing an example of the contents of the parking schedule information 433. The parking schedule information 433 is, for example, a sheet of information in which the estimated arrival time, the estimated departure time, the parking time, and the parking facility ID are associated with the reservation ID, and a plurality of sheets prepared for each vehicle 300. Information including. The reservation ID is identification information that identifies each reservation content. The estimated arrival time, the estimated departure time, the parking time, and the parking facility ID are the contents reserved by the user. The parking facility ID is identification information that identifies each parking facility 260.

The determination unit 423 determines a period during which the vehicle 300 needs to be discharged from the viewpoint of the V2G system (high demand period) and a period during which the vehicle 300 needs to be charged from the viewpoint of the V2G system (low demand period). For example, the determination unit 423 determines the period in which the electric power demand forecast exceeds the first threshold value as the high demand period based on the electric power demand forecast information acquired from the electric power company 100. Further, the determination unit 423 determines the period in which the power demand forecast is lower than the second threshold value (second threshold value <first threshold value) as the low demand period.

FIG. 6 is a diagram showing an example of power demand forecast. The horizontal axis is time and the vertical axis is power consumption (kW). For example, the determination unit 423 determines the period from 12:00 to 16:00, which exceeds the first threshold value, as the first high demand period HD1. Further, the determination unit 423 determines the period from 18:30 to 21:00, which exceeds the first threshold value, as the second high demand period HD2. Further, the determination unit 423 determines the period from 22:30 to 32:00 (8:00 AM), which is below the second threshold value, as the first low demand period LD1. The determination unit 423 determines the period in which the amount of power generated by the photovoltaic power generation (PV) included in the power demand forecast information exceeds a predetermined value in the second low demand period LD2. Not limited to this, the determination unit 423 may determine the high demand period and the low demand period estimated from the past history based on the date, the season, the weather forecast information acquired from the external server, and the like.

The derivation unit 424 derives the discharge potential for each vehicle based on the information acquired by the acquisition unit 421, for example. The dischargeable potential is information indicating how much electric power can be provided to the electric power company 100 in a high demand period. The high demand period is a period in which electric power demand is high, and corresponds to, for example, a period including a peak of electric power demand (daytime or at dinner time). For example, the larger the electric energy (hereinafter referred to as the assist electric energy) of the electric power (hereinafter referred to as the assist electric power) provided to the electric power company 100, the higher the discharge potential. The assist power is a part of the power interchanged from the vehicle 300 to the power system in the V2G system. Details of the discharge potential and the high demand period will be described later.

Further, the out-licensing unit 424 may derive a parameter for deriving the dischargeable potential (hereinafter, referred to as a first parameter). The first parameter includes, for example, the discharge speed of the vehicle-mounted battery 310, the charge / discharge possible range of the vehicle-mounted battery 310, and the like.

The derivation unit 424 derives the chargeable potential for each vehicle based on the information acquired by the acquisition unit 421, for example. The rechargeable potential is information indicating how much electric power provided by the electric power company 100 can be retained in a low demand period. The low demand period is a period in which the power demand is low, and corresponds to, for example, a period including the lowest value of the power demand (nighttime, etc.). For example, in the electric power provided by the electric power company 100, the larger the electric energy (hereinafter referred to as the stock electric energy) of the electric power that can be charged by the in-vehicle battery (hereinafter referred to as the stock electric energy), the higher the chargeable potential. It gets higher. The stock power is a part of the power interchanged from the power system to the vehicle 300 in the V2G system. Details of the rechargeable potential and the low demand period will be described later.

Further, the out-licensing unit 424 may derive a parameter for deriving the rechargeable potential (hereinafter, referred to as a second parameter). The second parameter includes, for example, the above-mentioned stock electric energy, the charging speed of the vehicle-mounted battery, the chargeable / discharging range of the vehicle-mounted battery, and the like.

The out-licensing unit 424 derives the assist power amount and the stock power amount based on the charge / discharge performance information. For example, the out-licensing unit 424 derives the assist power amount in the high demand period based on the derived dischargeable potential, and derives the stock electric energy in the low demand period based on the derived rechargeable potential. Not limited to this, the out-licensing unit 424 may derive the assist power amount and the stock power amount based on the schedule generated by the plan generation unit 425. The out-licensing unit 424 may derive only the assist power amount, may derive only the stock power amount, or may derive both the assist power amount and the stock power amount.

Further, the assist power amount in the high demand period and the stock power amount in the low demand period derived by the out-licensing unit 424 may be for each vehicle 300 or for each vehicle group belonging to a predetermined group. For example, the out-licensing unit 424 derives the assist power amount for each vehicle 300, totals all the assist power amounts of the vehicle groups belonging to the predetermined group, and derives the assist power amount of the vehicle group. The out-licensing unit 424 may derive the stock electric energy for each vehicle 300, add up all the stock electric energy of the vehicle groups belonging to a predetermined group, and derive the stock electric energy of the vehicle group. A given group may be one or more vehicles 300 parked (or scheduled to be parked) in parking facility 260, or one or more vehicles 300 parked (or scheduled to be parked) in a certain area. There may be.

The plan generation unit 425 refers to the user setting information 432 and the parking schedule information 433, and sets the first charge / discharge schedule capable of providing the maximum assist power within the range satisfying the contents of the preset setting and the parking reservation. Generate every 300. The preset setting is, for example, a setting by the user, and includes the SOC of the vehicle-mounted battery 310 at the scheduled departure time of the parking facility 260, the target SOC, the discharge limit value, the minimum SOC, and the like. The first charge / discharge schedule includes information in which the charge / discharge time and the estimated value of the SOC of the vehicle 300 at the charge / discharge time are associated with each other. The first charge / discharge schedule includes, for example, the charge start date / time and charge end date / time after arriving at the parking facility 260, the discharge start date / time and discharge end date / time of the assist power, and the charge start date / time and charge end date / time before departure from the parking facility 260. Etc. are included. The discharge start date and time of the assist power is estimated by, for example, the start timing estimation unit 426 described later.

Similarly, the plan generation unit 425 refers to the user setting information 432 and the parking schedule information 433, and sets a second charge / discharge schedule capable of charging the maximum stock power within the range satisfying the contents of the preset setting and the parking reservation. Generated for each vehicle 300. The second charge / discharge schedule includes information in which the charging time and the estimated value of the SOC of the vehicle 300 at the charging time are associated with each other. The second charge / discharge schedule includes, for example, the charging start date / time and the charging end date / time of the stock power. The charging start date and time of the stock power is estimated by, for example, the start timing estimation unit 426 described later. Hereinafter, a charge / discharge plan including at least one of the first charge / discharge schedule and the second charge / discharge schedule will be referred to as a charge / discharge plan.

When the vehicle 300 is running, the start timing estimation unit 426 includes the contents of the parking reservation specified by the user, the setting by the user, the high demand period determined by the determination unit 423, and the discharge performance information and charging of the vehicle 300. The assist start timing is estimated based on the performance information and the like. Further, the start timing estimation unit 426 may estimate the assist start timing based on the arrival time estimated by the arrival time estimation unit 427 described later. Details will be described later.

The arrival time estimation unit 427 estimates the time when the vehicle 300 arrives at the parking facility 260 based on the current position of the vehicle 300. For example, the acquisition unit 421 obtains information indicating the destination set in the route guidance managed by the navigation system mounted on the vehicle 300 and information indicating the current position of the vehicle 300 from the vehicle 300 via the network NW. get. The arrival time estimation unit 427 estimates the arrival time based on the current position of the vehicle 300, the route of the vehicle 300, and the like.

The charge / discharge instruction unit 428 instructs the vehicle 300 to discharge in order to provide the assist power to the electric power company 100. For example, the charge / discharge instruction unit 428 may instruct the discharge to start from the start time of the high demand period, or instruct the discharge to start from the assist start timing time estimated by the start timing estimation unit 426. May be good. Further, the charge / discharge instruction unit 428 may instruct to start discharging at the discharge speed included in the discharge performance information.

Further, the charge / discharge instruction unit 428 may instruct to start charging from the start time of the low demand period, and instruct to start charging from the time of the stock start timing estimated by the start timing estimation unit 426. May be good. Further, the charge / discharge instruction unit 428 may instruct to start charging at the charging speed included in the charging performance information.

[Dischargeable potential]
Next, an example of the dischargeable potential will be described in detail. FIG. 7 is a diagram showing an example of a change in SOC of the vehicle 300. The horizontal axis is time and the vertical axis is SOC. The time on the horizontal axis is, for example, a time included in the first charge / discharge schedule generated by the plan generation unit 425. The plan generation unit 425 charges / discharges based on the times T2 to T7 as shown in FIG. 4 based on, for example, the information stored in the storage unit 430, the assist start timing estimated by the start timing estimation unit 426, and the like. Generate a plan.

For example, the vehicle 300 departs on a full charge and then travels toward the parking facility 260. By the time the vehicle arrives at the parking facility 260 (T1), the SOC of the vehicle 300 has decreased. When the vehicle 300 arrives at the parking facility 260, it starts charging (T2) and charges up to the target SOC (T3). After that, when the start time of the high demand period is reached (T4), the vehicle 300 starts discharging and provides assist power. Then, the vehicle 300 continues to discharge until the SOC reaches the discharge limit value. When the SOC reaches the discharge limit value (T5), the discharge is terminated and the device waits without charging until the high demand period elapses. The time T4 is called the assist start timing, and the time T5 is called the assist end timing.

After that, when the end time of the high demand period is reached (T6), the vehicle 300 starts charging and continues charging until the target SOC is reached (T7). Upon reaching the departure time (T8), the vehicle 300 can leave the parking facility 260 on a full charge.

The lead-out unit 424 derives, for example, the time length (hereinafter referred to as the scheduled discharge time length) when discharging from the target SOC to the discharge limit value at the discharge speed of the vehicle-mounted battery 310 based on the discharge speed of the vehicle battery 310. The scheduled discharge time length is an example of the first parameter. Not limited to this, when the start time of the high demand period is approaching, the out-licensing unit 424 discharges at the discharge speed of the vehicle-mounted battery 310 from the SOC of the current vehicle-mounted battery 310 to the discharge limit value based on the remaining fuel amount information. The time length in the case of the above may be derived as the scheduled discharge time length. Further, the out-licensing unit 424 may derive the scheduled discharge time length capable of providing the maximum assist power in the schedule generated by the plan generation unit 425.

For example, the derivation unit 424 derives the sum of the points added according to the plurality of first parameters as the dischargeable potential. Hereinafter, an example in which (A) charge / discharge possible range, (B) charge speed, and (C) discharge speed are included in the first parameter will be described.

(A) For example, as the chargeable / discharging range becomes larger, the assist power amount increases as a result, so that the discharging potential becomes higher. The lead-out unit 424 derives the point PA to be added as the dischargeable range becomes larger.

(B) For example, the faster the discharge speed, the higher the discharge potential. The lead-out unit 424 derives a point addition point PB that increases as the discharge speed increases. This is because the faster the discharge speed, the more power can be discharged within the limited high demand period, and as a result, the amount of assist power can be increased.

(C) For example, the faster the charging speed, the higher the discharge potential. The lead-out unit 424 derives a point-adding point PC that increases as the charging speed increases. This is because the faster the charging speed, the higher the possibility that the target SOC has been reached by the start time of the high demand period. Further, the faster the charging speed, the higher the possibility that the target SOC has been reached by the scheduled departure time of the parking facility 260 after discharging the assist power.

The out-licensing unit 424 derives the total value of the point-added point PA, the point-added point PB, and the point-added point PC as the dischargeable potential.

Further, the SOC of the vehicle-mounted battery 310 (D) may be included in the first parameter. The out-licensing unit 424 derives the point-adding point PD that increases as the SOC of the vehicle-mounted battery 310 increases. Not limited to this, the derivation unit 424 derives the predicted value of SOC at the time of the assist start timing based on the remaining fuel amount information, discharge performance information, charging performance information, etc., and the larger the derived SOC predicted value, the greater the value. You may derive the point PD that becomes higher. This is applied, for example, in the case where the discharge potential is derived in the period of times T1 to T4 (a predetermined time before the high demand period and the vehicle 300 is parked in the parking facility 260). The out-licensing unit 424 derives the total value of the point-added point PA, the point-added point PB, the point-added point PC, and the point-added point PD as the dischargeable potential.

In addition, when the point addition point PD is derived in the period before the time T (the situation before the predetermined time of the high demand period and the vehicle 300 is not parked in the parking facility 260), the present of the vehicle battery 310 In some cases, the accuracy of the predicted value of SOC derived based on the SOC of is not ensured. In this case, the out-licensing unit 424 assumes that the SOC at the time of arriving at the parking facility 260 is the average SOC, derives the predicted value of the SOC at the time of the assist start timing, and increases the predicted value of the derived SOC. You may derive the point PD that becomes higher.

Further, the first parameter may include (E) the preparation time length derived based on the reservation information. The out-licensing unit 424 refers to the parking schedule information 433, and refers to the time of the preparation period excluding the high demand period (and the low demand period if the low demand period is included) in the period in which the vehicle 300 is parked in the parking facility 260. The length is derived as the preparation time length.

The preparation time length includes, for example, the time length required for preparation for full charge by the assist start timing. The out-licensing unit 424 derives the point-added point PE that increases as the time from the estimated arrival time of the parking facility 260 to the assist start timing increases. Not limited to this, the preparation time length includes the time length required for preparation for fully charging the parking facility 260 before leaving the parking facility 260. The out-licensing unit 424 may derive the additional point PE that increases as the time from the assist end timing to the scheduled departure time of the parking facility 260 increases. Further, the derivation unit 424 may derive the point addition point PE based on the two preparation time lengths described above. As described above, when the preparation time length can be sufficiently secured, it is possible to secure a sufficient power to be provided as the assist power as compared with the case where the preparation time length is not sufficiently secured.

Further, the estimated arrival time of the parking facility 260 referred to when deriving the preparation time length is not limited to the one included in the reservation information, and may be the estimated arrival time estimated by the arrival time estimation unit 427. As a result, the assist power amount can be derived even for the unreserved vehicle 300.

[About the method of deriving the assist power amount]
FIG. 8 is a flowchart showing an example of a method for deriving the assist power amount. First, the acquisition unit 421 acquires reservation information from the user terminal 500 via the network NW and registers it in the storage unit 430 as a part of the parking schedule information 433 (step S101). The determination unit 423 determines the high demand period based on the electric power demand forecast acquired from the electric power company 100 via the network NW (step S102). The acquisition unit 421 acquires various information from the vehicle 300 via the network NW and the external power supply device 200, and registers it in the storage unit 430 as a part of the vehicle-related information 431 (step S103).

The start timing estimation unit 426 refers to the storage unit 430 and estimates the assist start timing (step S104). The lead-out unit 424 derives the scheduled discharge time length based on the discharge speed of the vehicle battery 310 (step S105). The plan generation unit 425 refers to the storage unit 430 and generates a first charge / discharge schedule for discharging at the discharge speed of the vehicle battery 310 from the estimated assist start timing (step S106).

The derivation unit 424 derives the dischargeable potential based on, for example, the first parameter (step S107). The lead-out unit 424 derives the assist power amount based on the derived discharge potential (step S108).

The out-licensing unit 424 derives the assist power amount for each group, which is the sum of the assist power amounts derived for each vehicle 300 for each predetermined group. The management device 400 derives the assist power amount in the high demand period based on the assist power amount for each derived group.

In this way, the management device 400 can derive the assist power amount based on the charge / discharge performance of the in-vehicle battery 310, so that the accuracy of deriving the assist power amount can be improved.

[About other examples of how to derive the assist power amount]
For example, the out-licensing unit 424 allocates the assist power amount to be provided in the high demand period for each demand power supply area. The demand power supply area is an area in which a plurality of consumers who receive power from the electric power company 100 exist, and for example, there is one or more for each electric power company 100. The demand power supply area of the electric power company 100 includes, for example, a power demand supply area A and a power demand supply area B.

For example, the out-licensing unit 424 derives the assist power amount to be allocated to the demand power supply area based on the positional relationship between the demand power supply area and the external power supply device 200 that provides the assist power. For example, when the external power supply device 200-1 exists in the power supply and demand area A, the assist power provided by the vehicle 300 to the power company 100 via the external power supply device 200-1 is the power supply and demand area B. It may be more efficient because the power loss during power transmission is smaller when the power is provided to the customer who exists in the power supply and demand area A than when the power is provided to the customer who exists in the power supply and demand area A. In this way, when considering the power loss when transmitting power, the out-licensing unit 424 may limit the demand power supply area capable of supplying the assist power based on the position information of the external power supply device 200-1. good. For example, the out-licensing unit 424 allocates the assist power amount from the external power supply device 200-1 to one of the power supply and demand areas including the range overlapping the range within a radius of X km from the location of the external power supply device 200-1. Derivation of the assist power amount for each power supply and demand area.

The acquisition unit 421 further acquires the usage period information regarding the usage period of the vehicle-mounted battery 310, the charge / discharge frequency information regarding the charge / discharge frequency of the vehicle-mounted battery 310, and the out-licensing unit 424 based on the usage period information of the vehicle-mounted battery 310. The charge / discharge performance changed according to the deterioration may be derived, and the assist power amount may be derived based on the derived charge / discharge performance. The usage period information includes, for example, the date when the vehicle-mounted battery 310 is started to be used, the length of time that the vehicle-mounted battery 310 is used, and the like. The charge / discharge count information includes, for example, the number of charges / discharges since the start of use of the vehicle-mounted battery 310, the number of times the vehicle-mounted battery 310 has been charged / discharged in the external power supply device 200, and a predetermined period (one week, one month, etc.). The frequency of hits is included. The lead-out unit 424 derives the discharge performance that deteriorates according to the usage period and charge / discharge, and derives the assist power amount based on the charge / discharge performance according to the deterioration. By doing so, it is possible to derive the assist power amount according to the actual charge / discharge performance in consideration of the deterioration of the in-vehicle battery 310.

Further, the out-licensing unit 424 may derive the charge / discharge performance of the in-vehicle battery 310 based on the battery current value and the battery voltage value acquired by the acquisition unit 421. Further, the out-licensing unit 424 may derive the charge / discharge performance of the in-vehicle battery 310 based on the usage period information and the charge / discharge count information in addition to the battery current value and the battery voltage value.

[Chargeable potential]
Next, an example of the rechargeable potential will be described in detail. FIG. 9 is a diagram showing another example of the change in SOC of the vehicle 300. The horizontal axis is time and the vertical axis is SOC. The time on the horizontal axis is, for example, a time included in the second charge / discharge schedule generated by the plan generation unit 425. The plan generation unit 425 charges / discharges based on the times T22 to T23 as shown in FIG. 9 based on, for example, the information stored in the storage unit 430, the stock start timing estimated by the start timing estimation unit 426, and the like. Generate a plan.

For example, the vehicle 300 departs on a full charge and then travels toward the parking facility 260. By the time the vehicle arrives at the parking facility 260 (T21), the SOC of the vehicle 300 has decreased. After arriving at the parking facility 260, the vehicle 300 waits without charging until a low demand period is reached. Then, when the start time of the low demand period is reached (T22), the vehicle 300 starts charging the stock electric power from the electric power company 100. The vehicle 300 continues to charge until the SOC reaches the target SOC. When the SOC reaches the target SOC (T23), charging ends. The time T22 is referred to as a stock start timing, and the time T23 is referred to as a stock end timing. After that, when the departure time is reached (T25), the vehicle 300 can depart the parking facility 260 with a full charge.

The lead-out unit 424 derives, for example, the time length (hereinafter referred to as the scheduled charging time length) when the vehicle battery 310 is charged to the target SOC at the charging speed of the vehicle-mounted battery 310 based on the charging speed of the vehicle battery 310. The scheduled charging time length is an example of the second parameter. When the start time of the low demand period is approaching, the out-licensing unit 424 charges the vehicle battery 310 from the current SOC of the vehicle battery 310 to the target SOC at the charging speed of the vehicle battery 310 based on the remaining fuel amount information. The length may be derived as the scheduled charging time length. Further, the derivation unit 424 may derive the scheduled discharge time length capable of providing the maximum stock power in the schedule generated by the plan generation unit 425.

For example, the derivation unit 424 derives the sum of the points added according to the plurality of second parameters as the chargeable potential. Hereinafter, an example in which (H) charge / discharge possible range, (I) discharge speed, and (J) SOC of the vehicle-mounted battery 310 are included in the second parameter will be described.

(H) For example, as the chargeable / dischargeable range becomes larger, the stock electric energy amount increases as a result, so that the chargeable potential becomes higher. The lead-out unit 424 derives a point-added point PH that increases as the dischargeable range increases.

(I) For example, the faster the charging speed, the higher the chargeable potential. The derivation unit 424 derives the point addition point PI that increases as the charging speed increases. This is because the faster the charging speed, the more likely it is that the target SOC has been reached by the scheduled departure time after starting charging from the start time of the low demand period, even if charging is not started immediately after parking. ..

(J) For example, the lower the SOC of the vehicle-mounted battery 310, the more electric power that can be charged during the low demand period, and as a result, the amount of stock electric power increases and the rechargeable potential increases. The lead-out unit 424 derives a point addition point PJ that increases as the SOC of the vehicle-mounted battery 310 decreases. For the same reason, the second parameter may include an estimated value of SOC of the vehicle-mounted battery 310 at the time of arrival at the (K) parking facility 260. The derivation unit 424 may derive the point addition point PK that becomes higher as the estimated value of SOC becomes lower.

The derivation unit 424 derives the total value of the point addition point PH, the point addition point PI, and the point addition point PJ (or the point addition point PK) as the chargeable potential.

[About the derivation method of stock electric energy]
FIG. 10 is a flowchart showing an example of a method for deriving the assist power amount. First, the acquisition unit 421 acquires reservation information from the user terminal 500 via the network NW and registers it in the storage unit 430 as a part of the parking schedule information 433 (step S201). The determination unit 423 determines the low demand period based on the electric power demand forecast acquired from the electric power company 100 via the network NW (step S202). The acquisition unit 421 acquires various information from the vehicle 300 via the network NW and the external power supply device 200, and registers it in the storage unit 430 as a part of the vehicle-related information 431 (step S203).

The start timing estimation unit 426 refers to the storage unit 430 and estimates the stock start timing (step S204). The lead-out unit 424 derives the scheduled charging time length based on the discharge speed of the vehicle battery 310 (step S205). The plan generation unit 425 refers to the storage unit 430 and generates a second charge / discharge schedule for charging at the charging speed of the vehicle battery 310 from the estimated stock start timing (step S206).

The derivation unit 424 derives the rechargeable potential based on, for example, the second parameter (step S207). The lead-out unit 424 derives the stock electric energy based on the derived chargeable potential (step S208).

The out-licensing unit 424 derives the stock electric energy for each group, which is the sum of the stock electric energy derived for each vehicle 300 for each predetermined group. The management device 400 derives the stock electric energy of the low demand period based on the stock electric energy of each derived group.

As described above, the management device 400 is a management device that manages the transfer of electric power between the power system and the secondary battery mounted on the vehicle and storing the running power, and is a management device for managing the transfer of electric power from the vehicle to the secondary battery. An acquisition unit that acquires charge / discharge performance information including at least one of discharge performance or charge performance per unit time, and power from the secondary battery in the first period including the peak of power demand based on the charge / discharge performance information. Assist power of power that can be provided to the grid, or at least one of the stock power of power that can be charged by the secondary battery, which is the power provided by the power grid in the second period including the lowest value of power demand. By providing the derivation unit for derivation, the stock power amount can be derived based on the charge / discharge performance of the in-vehicle battery 310, so that the derivation accuracy of the stock power amount can be improved.

[Second Embodiment]
The out-licensing unit 424 uses, for example, the amount of electric power (hereinafter referred to as emergency assist power) to be provided to the electric power company 100 in an emergency (hereinafter referred to as emergency assist power) based on the information acquired by the acquisition unit 421. Derivation of quantity). For example, the out-licensing unit 424 derives the electric power when discharging from the current SOC to the minimum SOC at the discharge speed of the in-vehicle battery 310, and integrates the derived electric power to provide emergency assist for each group within a predetermined period. Derivation of electric energy.

For example, the out-licensing unit 424 may derive the emergency discharge potential for each vehicle based on the information acquired by the acquisition unit 421. The emergency discharge potential is information indicating how much electric power can be provided to the electric power company 100 during the emergency period. The emergency period is a state in which it is necessary to take measures to restore power in an emergency such as a disaster or terrorism. For example, when the derivation unit 424 obtains a notification indicating an emergency from an external server via the network NW, the derivation unit 424 sets a predetermined period as the emergency period from the time when the notification is obtained. When the out-licensing unit 424 obtains a notification indicating that the emergency has been canceled from the external server via the network NW, it may determine that the emergency period has ended.

For example, the larger the amount of emergency assist power, the higher the emergency discharge potential. The derivation unit 424 may derive a parameter (hereinafter, referred to as a third parameter) for deriving the emergency discharge potential. The third parameter includes, for example, the SOC of the vehicle-mounted battery 310, the discharge speed, and the like.

The lead-out unit 424 derives the emergency assist power amount based on the charge / discharge performance information. For example, the lead-out unit 424 derives the emergency assist power amount during the emergency period based on the derived emergency discharge potential. The amount of emergency assist power derived by the out-licensing unit 424 may be for each vehicle 300 or for each vehicle group belonging to a predetermined group. For example, the out-licensing unit 424 derives the emergency assist power amount for each vehicle 300, sums all the emergency assist power amounts of the vehicle groups belonging to a predetermined group, and derives the emergency assist power amount of the vehicle group. .. The out-licensing unit 424 may indicate that the predetermined group is one or more vehicles 300 parked (or scheduled to be parked) in the parking facility 260, or parked (or scheduled to be parked) in a certain area. The above vehicle 300 may be used.

The derivation unit 424 derives a range from the current SOC to the minimum SOC (hereinafter referred to as the maximum discharge range) based on, for example, the remaining fuel amount information. Further, the out-licensing unit 424 is, for example, based on the remaining fuel amount information and the discharge speed of the vehicle battery 310, the time length when discharging from the current SOC to the minimum SOC at the discharge speed of the in-vehicle battery 310 (hereinafter, emergency discharge). Scheduled time length) is derived. The maximum discharge range and the scheduled emergency discharge time length are examples of the third parameter.

For example, the derivation unit 424 derives the sum of the points to be added according to the plurality of third parameters as the emergency discharge potential. Hereinafter, an example in which (Q) maximum discharge range, (R) discharge speed, (S) scheduled emergency discharge time length, and (T) SOC are included in the third parameter will be described.

(Q) For example, as the maximum discharge range increases, the amount of emergency assist power increases, so that the emergency discharge potential increases. The lead-out unit 424 derives a point addition point PQ that increases as the maximum discharge range increases.

(R) For example, the faster the discharge speed, the higher the emergency discharge potential. The lead-out unit 424 derives a point-added point PR that increases as the discharge speed increases. This is because the faster the discharge speed, the more power can be discharged, and as a result, the amount of emergency assist power can be increased.

(S) The out-licensing unit 424 derives the point-adding point PS that increases as the scheduled emergency discharge time length increases.

(T) For example, the out-licensing unit 424 derives a point addition point PT that increases as the SOC of the vehicle-mounted battery 310 increases.

Since the method of deriving the emergency assist power amount is the same as a part of the method of deriving the assist power amount, detailed description thereof will be omitted.

As described above, according to the management device according to the embodiment, it is possible to accurately derive the amount of electric power interchanged between the electric power system and the vehicle. Therefore, it is possible to find the vehicle 300 that is likely to be able to use energy at an early stage and quickly recover the electric power in an emergency.

The embodiment described above can be expressed as follows.
A storage device that stores programs and
With a hardware processor,
When the hardware processor executes a program stored in the storage device,
Manages the transfer of power between the power system and the secondary battery that is installed in the vehicle and stores power for driving.
From the vehicle, charge / discharge performance information including at least one of the discharge performance or the charge performance per unit time of the secondary battery is acquired, and the charge / discharge performance information is acquired.
Based on the charge / discharge performance information, the assist power amount of the power that can be provided from the secondary battery to the power system in the first period including the peak of the power demand, or the second period including the minimum value of the power demand. At least one of the stock electric energy of the electric energy provided by the electric power system and the electric energy that can be charged by the secondary battery is derived.
A management device that is configured to.

Although the embodiments for carrying out the present invention have been described above using the embodiments, the present invention is not limited to these embodiments, and various modifications and substitutions are made without departing from the gist of the present invention. Can be added.

1 ... V2G system, 100 ... electric power company, 200 ... external power supply device, 202 ... housing, 204 ... control device, 206 ... communication unit, 208 ... cable connection port, 220 ... cable, 240 ... transmission line, 260 ... parking Facility, 300 ... vehicle, 310 ... in-vehicle battery, 320 ... battery sensor, 330 ... vehicle control unit, 340 ... vehicle storage unit, 350 ... connector, 400 ... management device, 410 ... communication unit, 420 ... control unit, 421 ... acquisition Unit 422 ... Reservation unit 423 ... Decision unit 424 ... Derivation unit 425 ... Plan generation unit 426 ... Start timing estimation unit 427 ... Arrival time estimation unit 428 ... Charge / discharge instruction unit 430 ... Storage unit 431 ... Vehicle-related information, 432 ... User setting information, 433 ... Parking schedule information, 500 ... User terminal

Claims (10)

It is a management device that manages the transfer of electric power between the electric power system and the secondary battery that is installed in the vehicle and stores electric power for running.
An acquisition unit that acquires charge / discharge performance information including at least one of the discharge performance or charge performance of the secondary battery per unit time from the vehicle, and an acquisition unit.
Based on the charge / discharge performance information, the assist power amount of the power that can be provided from the secondary battery to the power system in the first period including the peak of the power demand, or the second period including the lowest value of the power demand. It is provided with a derivation unit for deriving at least one of the stock electric energy of the electric power provided from the electric power system and which can be charged by the secondary battery .
The acquisition unit further acquires estimated time of arrival information regarding the time when the vehicle arrives at the charging / discharging equipment that provides the electric power discharged from the vehicle to the power system.
The out-licensing unit further derives the assist power amount that can be provided after a predetermined time based on the estimated arrival time information.
Management device. The acquisition unit further acquires the remaining fuel amount information indicating the remaining fuel remaining amount of the secondary battery, and further acquires the remaining fuel amount information.
Based on the charge / discharge performance information and the remaining fuel amount information, the out-licensing unit provides a dischargeable potential indicating how much power the secondary battery can provide to the power system in the first period. It is derived, and the assist power amount is derived based on the derived dischargeable potential.
The management device according to claim 1. The acquisition unit further acquires the remaining fuel amount information indicating the remaining fuel remaining amount of the secondary battery, and further acquires the remaining fuel amount information.
Based on the charge / discharge performance information and the remaining fuel amount information, the derivation unit can be charged to indicate how much the secondary battery can hold the electric power provided by the electric power system in the second period. The potential is derived, and the stock electric energy is derived based on the derived rechargeable potential.
The management device according to claim 1. The acquisition unit further acquires reservation information indicating the reservation contents for parking the vehicle in a parking facility in which an external power supply device that relays the transfer of electric power between the power system and the secondary battery is installed. ,
Based on the charge / discharge performance information and the reservation information, the derivation unit derives the time length of the preparation period not included in the first period of the period during which the vehicle is parked in the parking facility, and derives the derivation. Based on the length of time of the prepared preparation period, a dischargeable potential indicating how much power the secondary battery can provide to the power system in the first period is derived.
The management device according to claim 1. The acquisition unit further acquires reservation information indicating the reservation contents for parking the vehicle in a parking facility in which an external power supply device that relays the transfer of electric power between the power system and the secondary battery is installed. ,
The deriving unit, the Chi sac period in which the vehicle based on the charge and discharge performance information and the reservation information is parked in the parking facility, the secondary battery in the second period is provided from the electric power system Derivation of rechargeable potential, which indicates how much power can be retained,
The management device according to claim 1. The derivation unit further
The assist power allocated to the demand power supply area based on the positional relationship between the demand power supply area to which the power system supplies the demand power and the charging / discharging facility that supplies the power discharged from the vehicle to the power system. Derivation of quantity,
The management device according to any one of claims 1 to 5. The acquisition unit further
The usage period information regarding the usage period of the secondary battery or the charge / discharge count information regarding the number of charge / discharge times of the secondary battery is acquired.
The derivation unit further
The discharge performance changed according to the deterioration of the secondary battery is derived based on the usage period information or the charge / discharge frequency information, and the assist power amount is derived based on the derived discharge performance.
The management device according to any one of claims 1 to 6. The derivation unit further
Based on the remaining fuel amount of the secondary battery and the charge / discharge performance information, the emergency assist power amount of the power that can be provided to the power system from the secondary battery in the third period, which is an emergency, is derived.
The management device according to any one of claims 1 to 7. The computer
Manages the transfer of power between the power system and the secondary battery that is installed in the vehicle and stores power for driving.
From the vehicle, charge / discharge performance information including at least one of the discharge performance or the charge performance per unit time of the secondary battery is acquired, and the charge / discharge performance information is acquired.
Based on the charge / discharge performance information, the assist power amount of the power that can be provided from the secondary battery to the power system in the first period including the peak of the power demand, or the second period including the minimum value of the power demand. At least one of the stock electric energy of the electric energy provided by the electric power system and which can be charged by the secondary battery is derived .
Further, the estimated arrival time information regarding the time when the vehicle arrives is acquired by the charging / discharging equipment that provides the electric power discharged from the vehicle to the power system.
Further, based on the estimated arrival time information, the assist power amount that can be provided after a predetermined time is derived.
Management method. On the computer
Manage the transfer of power between the power system and the secondary battery that is installed in the vehicle and stores power for driving.
From the vehicle, charge / discharge performance information including at least one of the discharge performance or the charge performance per unit time of the secondary battery is acquired.
Based on the charge / discharge performance information, the assist power amount of the power that can be provided from the secondary battery to the power system in the first period including the peak of the power demand, or the second period including the minimum value of the power demand. At least one of the stock electric energy of the electric energy provided by the electric power system and which can be charged by the secondary battery is derived .
Further, the charging / discharging equipment that provides the electric power discharged from the vehicle to the electric power system is made to acquire the estimated arrival time information regarding the time when the vehicle arrives.
Further, based on the estimated arrival time information, the assist power amount that can be provided after a predetermined time is derived.
program.

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