JP2018182887A - Charge/discharge control device, charge/discharge control method and charge/discharge control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a charge/discharge control device which performs efficient charge/discharge control even if the number of charger/dischargers is smaller than and including the number of vehicles, so that it can reduce the introduction cost of a charger/discharger.SOLUTION: The charge/discharge control device includes: a charger 30; a facility information acquisition unit 12 which acquires the facility information of a charger/discharger 20; a vehicle information acquisition unit 13 which acquires vehicle information including the power storage capacity and the present power storage amount of a storage battery of a vehicle 110, the minimum and the maximum values of an available capacity, and a charge/discharge efficiency; a use schedule acquisition unit 14 which acquires the use time of the charger 30 and the charger/discharger 20 of the vehicle 110, and the power storage amount of the storage battery needed at driving; a charge/discharge schedule generator unit 15 which generates the charge/discharge schedule of the vehicle, on the basis of the acquired facility information and the vehicle information; a charge/discharge amount notification unit 16 which notifies the charger 30 and the charger/discharger 20 of a charge and a discharge amount, on the basis of the generated charge/discharge schedule; and a charger/discharger connection instruction unit 17 which instructs the charger/discharger 20 and the charger 30 connected to the vehicle 110, on the basis of the generated charge/discharge schedule.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a charge and discharge control device, a charge and discharge control method, and a charge and discharge control system for controlling charge and discharge of storage batteries mounted on a plurality of electric vehicles.

  In recent years, vehicles such as an electric vehicle (EV) and a plug-in hybrid vehicle (PHV) equipped with a storage battery are becoming widespread. In addition, it controls charge / discharge of the charger / discharger for utilizing the storage battery mounted on the vehicle as a power supply facility for supplying power to facilities such as commercial / complex buildings and business establishments, and charging / discharging of the storage battery mounted on the vehicle. Energy management systems are being developed.

The conventional vehicle management device calculates the charge amount necessary for traveling from the destination information of the vehicle, and based on the information such as the unit price of electricity purchase and the unit price of gasoline from the electric power system, the cost necessary for charging the vehicle The charging schedule of the vehicle to be minimized is calculated, and charging control of the storage battery of the vehicle is performed (see, for example, Patent Document 1).
Further, in the conventional charge / discharge control device, a charge / discharge schedule of a storage battery mounted on a vehicle is generated, and charge / discharge is controlled based on the schedule, thereby reducing the peak of the power supplied from the power system. (See, for example, Patent Document 2).

JP 2008-298537 A JP 2012-175722 A

Patent Document 1 relates to a device that minimizes the required cost of a facility by controlling charging of a storage battery of a vehicle based on the amount of charge necessary for traveling, and does not describe discharging.
Moreover, although patent document 2 is related to the apparatus which reduces the peak of the electric power of a plant | facility by controlling charge and discharge, there is no description regarding the number of the charger / dischargers with respect to introduction of all the vehicles, Based on the fact that there are the same number of charge / discharge units as the number of charge / discharge devices, the charge / discharge schedule of the storage batteries mounted on the vehicle is created. However, in order to charge and discharge the storage battery mounted on the vehicle, it is necessary to introduce a charger / discharger separately from the charger provided at the time of purchase of the vehicle, but the charger / discharger is very expensive. There has been a problem that it is difficult to recover the introduction cost if the number of charge / discharge devices is purchased.

  The present invention has been made to solve the above-described problems. Even when the number of charge / discharge devices is equal to or less than the number of vehicles, efficient charge / discharge control is performed to introduce charge / discharge devices. An object of the present invention is to provide a charge / discharge control device capable of reducing costs.

The charge / discharge control device according to the present invention includes an equipment information acquisition unit for acquiring equipment information of a charger and a charger / discharger, a storage capacity of a storage battery of each vehicle, a current storage capacity, a minimum value of the usable capacity, a maximum value, Vehicle information acquisition unit to acquire vehicle information of discharge efficiency, usage schedule acquisition unit to acquire the storage amount of storage battery necessary when using the charger and charger / discharger of each vehicle and traveling time, acquired facility information and vehicle information Charge and discharge plan creating unit for creating a charge and discharge plan of the vehicle based on the charge and discharge amount notification unit for notifying the charger and the charge and discharge device of the charge and discharge amount based on the created charge and discharge plan; A charger / discharger connection instructing unit for instructing a charger / discharger or a charger to be connected based on each vehicle is provided.

  According to the charge / discharge control device of the present invention, the number of charge / discharge devices is equal to or less than the number of vehicles by creating a charge / discharge plan of the vehicle based on the number of charge / discharge devices and the usage schedule of each vehicle. Also, by performing efficient charge and discharge control, the cost of introducing the charge and discharge device can be reduced.

It is a block diagram which shows the charge / discharge control system in Embodiment 1 of this invention. It is a figure which shows an example of the vehicle information management table of the database in the charging / discharging control system which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the installation information management table of the database in the charging / discharging control system which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the utilization schedule management table of the database in the charging / discharging control system which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the charge / discharge plan management table of the database in the charge / discharge control system which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the installation information of the charging / discharging device in the charging / discharging control system which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the installation information of the charger in the charge / discharge control system which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the installation information of the vehicle in the charge / discharge control system which concerns on Embodiment 1 of this invention. FIG. 7 is a diagram showing an example of a usage schedule of a vehicle in the charge and discharge control system according to the first embodiment of the present invention. It is a block diagram which shows the charge / discharge plan preparation part in the charge / discharge control system which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the hardware constitutions of the charge control apparatus in Embodiment 1 of this invention. It is a flowchart which shows the procedure of the charging / discharging plan creation process in the charging / discharging control system which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the utilization schedule of the vehicle in the charge / discharge control system which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the charging / discharging device allocation data in the charging / discharging control system which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the purchased power unit price in the charging / discharging control system which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the charge plan calculated by the charge / discharge plan preparation part in the charge / discharge control system which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the charging / discharging device allocation data calculated by the charging / discharging plan preparation part in the charging / discharging control system which concerns on Embodiment 1 of this invention. It is a block diagram which shows the charging / discharging control system in Embodiment 2 of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.

Embodiment 1
FIG. 1 is a block diagram of a charge / discharge control system according to a first embodiment of the present invention. In FIG. 1, the charge and discharge control system 1 includes a charge and discharge control device 10, a charge and discharge device 20, and a charger 30. The charger / discharger 20 charges and discharges a storage battery mounted on the vehicle, and the charger 30 charges a storage battery mounted on the vehicle. The charge / discharge control device 10 includes information on a plurality of vehicles 110 and equipment (charge / discharge device 20, charger 30 etc.) constituting the vehicle group 100 targeted by the present embodiment, and charge / discharge plan of each vehicle 110. The facility information acquisition unit 12 for acquiring facility information of the charger 30 and the charger / discharger 20 installed in the facility where the database 11 to be managed, the charger / discharger 20, the charger 30 and the like are installed, storage of the storage battery of each vehicle Vehicle information acquisition unit 13 that acquires vehicle information such as capacity, current storage amount, minimum value of usable capacity, maximum value, charge / discharge efficiency, time when using charger 30 of each vehicle and charger / discharger 20 or traveling Usage schedule acquisition unit 14 for acquiring necessary storage amount of storage battery, charge / discharge plan creation unit 15 for creating charge / discharge plan of vehicle based on acquired equipment information and vehicle information, charger based on created charge / discharge plan 30 And a charge / discharge amount notification unit 16 that notifies the charge / discharge amount to the charge / discharge device 20, and a charge / discharge device connection instructing unit that instructs the charge / discharge device 20 or the charger 30 that is equipment connected to each vehicle It has seventeen. Further, the charge / discharge device 20 has a charge / discharge control unit 21 that controls charging and discharging of the vehicle, and a display unit 22 that displays a connection instruction to the charge / discharge device 20 notified from the charge / discharge control device 10. The charger 30 also has a charge control unit 31 that controls charging of the vehicle, and a display unit 32 that displays a connection instruction to the charger 30 notified from the charge and discharge control device 10.

  First, the database 11 will be described. In the database 11, information on vehicles required to create a charge / discharge plan for each vehicle, information on facilities of the charger 30 and the charge / discharge device 20, and use of the charger 30 and the charge / discharge device 20 for each vehicle The charge schedule of each vehicle prepared by the charge / discharge control device 10 is managed. 2 to 5 show an example of the database 11 in the present invention, FIG. 2 shows an example of a table for managing information of a vehicle, and FIG. 3 shows a table for managing information of facilities of the charger 30 and the charger / discharger 20. FIG. 4 is an example of a table for managing a usage schedule of vehicles, and FIG. 5 is an example of a table for managing a charge / discharge plan of each vehicle created by the charge / discharge control apparatus 10. In the drawing, among the vehicles 110, a first vehicle is represented by a vehicle 110A, a second vehicle is represented by a vehicle 110B, and a third vehicle is represented by a vehicle 110C. Further, in the charger / discharger 20, the first charger / discharger is represented by the charger / discharger 20A, and in the charger 30, the first charger is represented by 30A, and the second charger is represented by the charger 30B. . The same applies to other figures described later.

  Next, the equipment information acquisition unit 12 will be described. The facility information acquisition unit 12 acquires, from the database 11, information (maximum charge amount, maximum discharge amount, charge / discharge efficiency) of the charger 30 and the charge / discharge device 20 introduced to the facility. An example of the information of the charging / discharging device 20 to acquire is shown in FIG. 6, and an example of the information of the charger 30 is shown in FIG.

  Next, the vehicle information acquisition unit will be described. The vehicle information acquisition unit acquires information (storage capacity, current storage amount, usable capacity) of the storage battery of each vehicle from the database. An example of the acquired vehicle information is shown in FIG.

  Next, the usage schedule acquisition unit 14 will be described. The use schedule acquisition unit 14 acquires a use schedule of the vehicle (a connection scheduled time, a disconnection scheduled time, a planned storage amount at connection, a required storage amount at disconnection) from the database 11. The usage schedule may be registered through a dedicated application for setting the usage schedule before connection, or the past usage records of each vehicle (connection time or disconnection of charger 30 and charger / discharger 20) It may be inferred from the time, the storage amount at the time of connection). In addition, as a dedicated application used when setting the usage schedule, a function of a car navigation system may be used, or an application available from a mobile terminal may be used. An example of the usage schedule to be acquired is shown in FIG.

  Next, the charge and discharge plan creation unit 15 will be described. The charge / discharge plan creation unit 15 creates a charge / discharge plan of the vehicle and a usage schedule of the charge / discharge device 20 based on the facility information acquired by the facility information acquisition unit 12 and the vehicle information acquired by the vehicle information acquisition unit 13. FIG. 10 is a block diagram of the charge and discharge plan creation unit 15. In FIG. 10, the charge / discharge plan creating unit 15 sets a charge / discharge device allocation initial data setting unit 151 that sets an initial value of allocation data of the charge / discharge device 20 for each vehicle, equipment information of each vehicle, vehicle information, and a usage schedule. Based on the optimization problem creating part 152 which creates the constraints and the objective function of the optimization problem based on the basis, the plan creating part 153 which solves the created optimization problem and calculates the charge and discharge plan of each vehicle, and based on the calculated charge and discharge plan Charge / discharger allocation data update unit 154 for updating charge / discharge device allocation data, charge / discharge plan update unit 155 for updating the current charge / discharge plan to the calculated charge / discharge plan, charge for changing charge / discharge device allocation data for each vehicle A discharger allocation data change unit 156 is provided.

  Here, a block diagram of the charge and discharge control device 10 shown in FIG. 1 and a hardware configuration for realizing each configuration of the charge and discharge plan creation unit 15 included in the charge and discharge control device shown in FIG. 10 will be described. FIG. 11 is a diagram showing an example of the hardware configuration of the charge and discharge control device 10 according to the first embodiment and the charge and discharge plan creation unit 15 included in the charge and discharge control device. The database 11 of the charge / discharge control device 10 of FIG. 1 is realized by, for example, the memory 1000 shown in FIG. The vehicle information acquisition unit 13, the facility information acquisition unit 12, and the usage schedule acquisition unit 14 of the charge and discharge control device 10 of FIG. 1 are realized by, for example, the input interface 1001 illustrated in FIG. The charge / discharge plan creating unit 15 shown in FIGS. 1 and 10 is realized, for example, by the processor 1002 executing programs for respective configurations stored in the memory 1000. The charge / discharge amount notification unit 16 and the charge / discharge device connection instruction unit 17 in FIG. 1 are realized by, for example, an output interface 1003 illustrated in FIG. The memory 1000, the input interface 1001, the processor 1002, and the output interface 1003 are communicably connected by a system bus 1004. The charge / discharge control device 10 may realize the functions of the respective configurations shown in FIGS. 1 and 10 in cooperation with the plurality of memories 1000 and the plurality of processors 1002. The charge / discharge control device can be realized by the hardware configuration shown in FIG. 11, but can be realized by either software or hardware configuration. Although the above-described hardware configuration has been described for the first embodiment, the same hardware configuration or software configuration can be applied to the other embodiments of the present invention.

  Further, the charge / discharge plan of the vehicle in the charge / discharge plan creation unit 15 and the procedure for creating the usage schedule of the charge / discharge device are shown in the flowchart of FIG. Note that the charge and discharge plan is created by dividing a certain period T (for example, 24 hours) from time t (currently) when the plan is created into a period S (for example, one hour) smaller than the certain period T. From here on, it will be described as T = 24 and S = 1. Moreover, as the acquired equipment information and vehicle information, one charger / discharger 20 (charger / discharger 20A) and three chargers 30 are provided for three vehicles 110 (vehicle 110A, vehicle 110B, vehicle 110C). A stand (charger 30A, charger 30B) will be described. The equipment information of the charger / discharger 20 and the charger 30 will be described using FIG. 6 and FIG. 7, the vehicle information using FIG. 8, and the usage schedule of each vehicle using FIG.

First, when the process is started, the initial value of the allocation data of the charger / discharger 20 for each vehicle 110 is determined in step S1 based on the acquired facility information (the number of chargers 30 and the number of chargers / dischargers 20). Set (charge / discharger allocation initial data setting process). The charge / discharge device 20 may be randomly assigned. However, it is only the number of chargers / dischargers 20 that can be allocated at each time, and in the usage schedule (connection scheduled time, disconnection scheduled time) of each vehicle 110, nothing is allocated to the time zone during disconnection. I assume. Figure 1 shows an example of charge / discharge unit allocation data.
Shown in 4. In addition, the display of "1" described in FIG. 14 represents the use of the charge / discharge device 20, the display of "0" represents the use of the charger 30, and the blank portion represents the charge / discharge device 20, It indicates that the charger 30 is in the process of disconnection.

Next, based on the acquired equipment information and vehicle information, in step S2 constraints and an objective function are created (optimization problem creation processing), and in step S3, charge and discharge of each vehicle is solved by solving the optimization problem. Calculate a plan (charge and discharge plan creation process). The expression of the objective function and constraint condition of the optimization problem to be created is as follows. In the present embodiment, the minimization of the power purchase cost from the power system of the facility where the charge / discharge device 20 and the charger 30 are installed is used as the objective function of the optimization problem to calculate the power purchase cost. The purchase unit price uses different power purchase unit prices at times as shown in FIG. The power purchase unit price and the power sales unit price are values set in advance, and are determined by a contract with a power retailer. In addition, as the minimum value of the power purchase cost, “supply and demand balance restriction, purchase power restriction, storage battery restriction” is satisfied.
The objective function of the optimization problem is shown in equation (1).

  Here, C_BUY represents the power purchase cost at time t, E_BUY represents the power purchase amount at time t, and E_BUY_COST represents the power purchase unit price at time t.

  Next, the constraint condition of the demand-supply balance constraint of the target facility is shown in equation (2).

  Here, ED in equation (2) represents the power demand at time t, and E_EV represents the charge / discharge amount at time t.

  Next, the constraint condition of the purchased power from the power retailer is shown in Formula (3).

  Here, E_BUY_MIN in equation (3) represents the minimum purchaseable value of the power purchase amount, and E_BUY_MAX represents the maximum purchaseable value of the power purchase amount. The minimum value and the maximum value are predetermined values.

  Next, the constraint condition of the storage battery constraint of the storage battery mounted in a vehicle is shown in Formula (4).

  Here, SOC in equation (4) is the storage amount of the storage battery at time t, EFF is the charge / discharge efficiency of the storage battery, SOC_MIN is the minimum value of usable storage amount of the storage battery, and SOC_MAX is the maximum storage amount of the storage battery that can be used E_BAT_MIN is the minimum charge / discharge energy of the storage battery, E_BAT_MAX is the maximum charge / discharge energy of the storage battery, IN_TIME is the scheduled connection time, OUT_TIME is the expected disconnection time, and END_SOC_VALUE is the required storage capacity at disconnection. . In addition, the range of the above-mentioned fixed period T is represented as IN_TIME <= t <= OUT_TIME.

  Referring back to FIG. 12, in step S4, the value of the objective function according to the calculated charge and discharge plan is confirmed to confirm whether the value of the objective function is a smaller value. That is, it is determined whether there is a solution for updating the evaluation value of the objective function. If the value of the objective function is a small value, the charge / discharger allocation data is updated in step S5 (charge / discharger allocation data update processing), and the charge / discharge plan is updated in step S6 (charge / discharge plan update processing ).

  Next, in step S7, it is confirmed whether the termination condition of the repetitive processing has been reached, and if the termination condition has been reached, the processing is terminated. If the result confirmed in step S7 does not reach the termination condition, the charge / discharger allocation data is changed in step S8 (charge / discharger allocation data change processing), and the process returns to step S2, and the charge / discharge plan is again performed. Calculate the value. In addition, as the termination condition of the repetitive processing, the number of times of processing set in advance may be used, or the case where the predetermined number of times of updating the charge / discharge plan and the charge / discharge device allocation data may not be performed may be used. In addition, the method of changing the charge / discharge device allocation data may be changed again at random, or may be changed using a gene update method (crossover, mutation) of the genetic algorithm.

  Finally, the calculated charge / discharge plan and charge / discharge device allocation data are registered in the database 11. An example of the calculated charging / discharging plan is shown in FIG. 16, and an example of charging / discharging device allocation data is shown in FIG. Incidentally, the display of “1” described in FIG. 16 represents the use of the charge / discharge device 20, the display of “0” represents the use of the charger 30, and the blank portion represents the charge / discharge device 20, It indicates that the charger 30 is in the process of disconnection. In addition, the positive value described in FIG. 17 represents discharge, the negative value represents charge, and the blank portion represents that the charge / discharge device 20 is disconnected.

Next, the charge / discharge amount notification unit 16 will be described. The charge / discharge amount notification unit 16 notifies the charger 30 and the charge / discharge device 20 based on the charge / discharge plan value calculated by the charge / discharge plan creation unit 15. And the charger 30 and the charging / discharging device 20 control the charging / discharging of the connected vehicle based on the notified charging / discharging amount.

  Next, the charge / discharge device connection instruction unit 17 will be described. The charge / discharge device connection instructing unit 17 determines which device (charge / discharge device) arrives at the user of each vehicle based on the charge / discharge device allocation data (use schedule of the charge / discharge device 20) calculated by the charge / discharge plan creation unit 15 20, the charger 30) is notified of connection information indicating whether the vehicle should be connected. The connection information may be notified to the display unit 32 of the charger 30 and the display unit 22 of the charger / discharger 20 as the notification destination of the connection information, or may be notified to the car navigation system installed in each vehicle 110. Alternatively, it may be notified to a mobile terminal such as a smartphone of an individual (user) who is using the vehicle 110. Moreover, as a display method of the display parts 32 and 22 of the charger 30 and the charging / discharging device 20, you may display the vehicle name for identifying a vehicle on a screen, and a vehicle charger using a lamp etc. When approaching the vicinity of 30 and the charger / discharger 20, the respective wraps of the corresponding charger 30 and charger / discharger 20 may be lit. Moreover, as a method of displaying on the display part of a car navigation system or a mobile terminal, a charger name and a charger / discharger name for identifying the charger 30 and the charger / discharger 20 are displayed on the screen.

  The charge / discharge control device 10 as described above calculates the charge / discharge plan value of each vehicle according to the usage schedule of the charge / discharge device 20 and the charger 30, and the number of charge / discharge devices 20 is equal to or less than the number of vehicles. Also in the case of the above, appropriate charge and discharge control can be performed. In addition, as a measure for determining the number of charge / discharge devices 20, when the duplication of the usage schedule of each vehicle 110 is small, the number of charge / discharge devices 20 can be reduced as much as possible. In the case of such a usage schedule, cost-effectiveness can be enhanced by setting the number of vehicles 110 to three and the number of charge / discharge devices 20 to one (the remaining two are chargers 30). In the present embodiment, the case where three vehicles 110, one charger / discharger 20, and two chargers 30 are described, but the present invention is not limited to this, the number of chargers / dischargers and chargers If the total number of vehicles is equal to or less than the number of vehicles to be targeted, and the number of chargers / dischargers is smaller than the number of chargers, the charger / discharger and charger are controlled to be connected to the vehicles The same effect can be obtained.

Second Embodiment
In the first embodiment of the present invention, the device connected to each vehicle is notified based on the calculated usage schedule of the charge / discharge device, and the user directly connects the devices. However, it is troublesome for the user to connect the device, and in some cases, the user may connect to a device different from the instruction.
Therefore, in the charge and discharge control system according to the second embodiment, a switching device is added between the charge and discharge device and the charger and each vehicle so that the devices can be automatically switched.

  FIG. 18 is a block diagram of a charge / discharge control system according to a second embodiment of the present invention. In the charge and discharge control system 1 of FIG. 18, a switching device 40 is added to switch the connection between each vehicle 110 and the charge and discharge device 20 and the charger 30. Furthermore, in the charge / discharge control device 10, instead of the charge / discharge device connection instruction unit 17 (see FIG. 1) provided in the first embodiment, the charge / discharge device 20 for each vehicle 110 in the switching device 40, a charger It is comprised from the charging / discharging device switching control part 18 which controls switching of 30 connection. In addition, since switching between charge / discharge device 20 and charger 30 and each vehicle 110 is performed by switching device 40, display unit 22 of charge / discharge device 20 and display unit 32 of charger 30 in the first embodiment are held. do not do. The other configurations, the functions of the respective units, and the operations are the same as in the first embodiment, and thus the description thereof is omitted.

  The charge / discharge device switching control unit 18 will be described. Based on the utilization schedule of the charge / discharge device 20 calculated by the charge / discharge plan creation unit 15, the switching device 40 controls which device is connected to which vehicle.

  The convenience of the user can be improved by eliminating the trouble of connection of the charge / discharge device 20 at the time of arrival of the vehicle by the charge / discharge control device 10 as described above.

  In the present invention, within the scope of the invention, each embodiment can be freely combined, or each embodiment can be appropriately changed or omitted.

DESCRIPTION OF SYMBOLS 1 charge / discharge control system, 10 charge / discharge control apparatus, 11 database, 12 facility information acquisition part, 13 vehicle information acquisition part, 14 utilization schedule acquisition part, 15 charge / discharge plan preparation part, 16 charge / discharge amount notification part, 17 charge / discharge Appliance connection instruction unit, 18 charge / discharge device switching control unit, 20 charge / discharge device, 21 charge / discharge control unit, 22 display unit, 30 charger, 31 charge control unit, 32 display unit, 40 switching device, 100 vehicle, 111 display Department

Claims (11)

In a charge / discharge control device for selectively connecting a charge / discharge device and a charger to a plurality of vehicles equipped with storage batteries, the total number of the charge / discharge devices and the number of the chargers is equal to or less than the number of target vehicles. And the charge / discharge control device configured to control the charge / discharge device whose number of charge / discharge devices is smaller than the number of the chargers and to connect the battery charger to the vehicle,
Equipment information acquisition unit for acquiring equipment information of the charger and the charger / discharger, storage capacity and current storage amount of the storage battery of each vehicle, minimum value of usable capacity, maximum value, vehicle information of charge / discharge efficiency Vehicle information acquisition unit to acquire, usage schedule acquisition unit to acquire the storage amount of the storage battery required when using the charger and the charger / discharger of each vehicle and traveling time, acquired equipment information and the vehicle information A charge / discharge plan creating unit for creating a charge / discharge plan of the vehicle based on the charge / discharge amount notification unit for notifying the charger and the charge / discharge device of the charge / discharge amount based on the created charge / discharge plan; A charge / discharge control device comprising: a charge / discharge device connection instructing unit instructing the charge / discharge device or the charger to which each vehicle is connected based on the charge / discharge plan. In a charge / discharge control device for selectively connecting a charge / discharge device and a charger to a plurality of vehicles equipped with storage batteries, the total number of the charge / discharge devices and the number of the chargers is equal to or less than the number of target vehicles. And the charge / discharge control device configured to control the charge / discharge device whose number of charge / discharge devices is smaller than the number of the chargers and to connect the battery charger to the vehicle,
Equipment information acquisition unit for acquiring equipment information of the charger and the charger / discharger, storage capacity and current storage amount of the storage battery of each vehicle, minimum value of usable capacity, maximum value, vehicle information of charge / discharge efficiency Vehicle information acquisition unit to acquire, usage schedule acquisition unit to acquire the storage amount of the storage battery required when using the charger and the charger / discharger of each vehicle and traveling time, acquired equipment information and the vehicle information A charge / discharge plan creating unit for creating a charge / discharge plan of the vehicle based on the charge / discharge amount notification unit for notifying the charger and the charge / discharge device of the charge / discharge amount based on the created charge / discharge plan; A charge / discharge control device comprising: a charge / discharge device switching control unit configured to control switching of connection of the charge / discharge device and the charger to each vehicle based on the charge / discharge plan.   The charge / discharge plan creation unit sets an initial value of allocation data of the charge / discharge device for each vehicle, and an initial charge / discharge device initial data setting unit, and is optimum based on equipment information of each vehicle, vehicle information, and usage schedule Optimization problem creation unit that creates the constraint condition of the optimization problem and the objective function, the plan creation unit that solves the created optimization problem and calculates the charge and discharge plan of each vehicle, and the charge and discharge based on the calculated charge and discharge plan Charge / discharger allocation data update unit for updating electric equipment allocation data, charge / discharge plan update unit for updating the current charge / discharge plan to the calculated charge / discharge plan, charge / discharge device for changing charge / discharger allocation data for each vehicle The charge / discharge control device according to claim 1 or 2, further comprising an allocation data change unit.   The charge / discharge control according to claim 1, wherein the charge / discharge plan creation unit determines the charge / discharge plan such that the power purchase cost from the electric power system is minimized based on the power purchase unit price at the purchase time. apparatus. In a charge / discharge control method for selectively connecting a charge / discharge device and a charger to a plurality of vehicles equipped with storage batteries, the total number of the charge / discharge devices and the number of the chargers is equal to or less than the number of target vehicles. And the charging / discharging control method is configured to control the charging / discharging device and the charging device configured such that the number of charging / discharging devices is less than the number of charging devices,
Charge / discharge of the vehicle based on the equipment information of the charger / discharger and the charger, the storage capacity and current storage amount of the storage battery of each vehicle, minimum value of usable capacity, maximum value, vehicle information of charge / discharge efficiency In charge and discharge plan making which make plan,
A setting step of setting an initial value of allocation data of the charger / discharger based on the number of chargers and the number of chargers / dischargers;
An optimization problem creating step of creating a constraint condition and an objective function of an optimization problem based on facility information of the charger and the charge / discharge device and a usage schedule of the vehicle;
A charge / discharge plan creation step of solving the created optimization problem and creating a charge / discharge plan of the vehicle;
An updating step of updating the charge / discharge schedule and allocation data of the charge / discharge device based on the value of the objective function based on the calculated charge / discharge schedule;
A change step of checking whether the termination condition of the repetitive processing is reached, terminating the processing when the termination condition is satisfied, and changing the allocation data of the charger / discharger when the termination condition is not satisfied;
And a charge / discharge control method characterized by including: A charge / discharge control system having a charge / discharge device and a charger selectively connected to a plurality of vehicles equipped with a storage battery, and a charge / discharge control device controlling a connection relationship of the charge / discharge device and the charger with respect to the vehicle The number of the charge / discharge device and the total number of the chargers is equal to or less than the number of the target vehicles, and the number of the charge / discharge devices is smaller than the number of the chargers. And a charge / discharge control system that controls the charger to be connected to the vehicle,
Equipment information acquisition unit for acquiring equipment information of the charger and the charger / discharger, storage capacity and current storage amount of the storage battery of each vehicle, minimum value of usable capacity, maximum value, vehicle information of charge / discharge efficiency Vehicle information acquisition unit to acquire, usage schedule acquisition unit to acquire the storage amount of the storage battery required when using the charger and the charger / discharger of each vehicle and traveling time, acquired equipment information and the vehicle information A charge / discharge plan creating unit for creating a charge / discharge plan of the vehicle based on the charge / discharge amount notification unit for notifying the charger and the charge / discharge device of the charge / discharge amount based on the created charge / discharge plan; A charge / discharge control system comprising: a charge / discharge device connection instruction unit for instructing the charge / discharge device or the charger to which each vehicle is connected based on the charge / discharge plan.   The charge / discharge device includes a charge / discharge control unit that controls charging and discharging of the vehicle, and a display unit that displays a connection instruction to the charge / discharge device notified from the charge / discharge control device, the charger The charge and discharge unit according to claim 6, further comprising: a charge control unit configured to control charging of the vehicle; and a display unit configured to display a connection instruction to the charger notified from the charge and discharge control device. Control system.   The charger / discharger connection instructing unit notifies the car navigation system mounted on each vehicle that connection information indicating which of the charger / discharger or the charger can be connected to the vehicle. The charge / discharge control system according to claim 6, characterized in that   The charger / discharger connection instructing unit is configured to notify the mobile terminal owned by the user of each of the vehicles of connection information indicating which of the charger / discharger or the charger can be connected to each of the vehicles. The charge / discharge control system according to claim 6, characterized in that A charge / discharge control system having a charge / discharge device and a charger selectively connected to a plurality of vehicles equipped with a storage battery, and a charge / discharge control device controlling a connection relationship of the charge / discharge device and the charger with respect to the vehicle The number of the charge / discharge device and the total number of the chargers is equal to or less than the number of the target vehicles, and the number of the charge / discharge devices is smaller than the number of the chargers. And a charge / discharge control system that controls the charger to be connected to the vehicle,
Switching device for switching the connection relationship between each vehicle and the charger / discharger, equipment information acquisition unit for acquiring equipment information of the charger and the charger / discharger, storage capacity of the storage battery of the storage battery of each vehicle, Vehicle information acquisition unit that acquires vehicle information of current storage amount, minimum value of usable capacity, maximum value, charge / discharge efficiency, time required for using the charger and charge / discharge device of each vehicle, and the time required for traveling A usage schedule acquisition unit for acquiring a storage amount of a storage battery, a charge / discharge plan creation unit for creating a charge / discharge plan of the vehicle based on the acquired equipment information or the vehicle information, the charge based on the created charge / discharge plan And a charge / discharge amount notification unit for notifying the charge / discharge amount to the charge / discharge device, switching of the connection of the charge / discharge device to the vehicle, the charger to the switching device based on the created charge / discharge plan control Discharge control system comprising the that the charge and discharge device switching control unit.   The charge / discharge device includes a charge / discharge control unit that controls charging and discharging of the vehicle, and the charger includes a charge control unit that controls charging of the vehicle. Charge and discharge control system as described in.

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