JP2016140224A - Power supply system and distribution power supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power supply system and a distribution power supply device, capable of charging a plurality of target vehicles by using a power supply vehicle.SOLUTION: A power supply system 10 comprises a plurality of chargers 11a to 11c to be used for charging target power storage devices 101a to 101c mounted on target vehicles 100a to 100c. The power supply system 10 comprises a distribution power supply device 12, which includes a power conversion unit 31 for converting DC power as supply power supplied from a supply power storage device 203 mounted on a power supply vehicle 200 to AC power as charging power to be used for charging the target vehicles 100a to 100c and distributes the AC power to the plurality of chargers 11a to 11c.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a power supply system and a distributed power supply apparatus.

  Conventionally, a vehicle equipped with a power storage device is known, and power is supplied between two vehicles equipped with such a power storage device, that is, between a power supply vehicle that supplies power and a target vehicle that is a target of charging. A V2V (Vehicle to Vehicle) system for performing exchanges is known (see, for example, Patent Document 1).

JP 2013-20346 A

  Here, depending on the place or region, there are cases where infrastructure equipment for charging the power storage device of the vehicle is not sufficiently provided. In this case, there may be a disadvantage that the target vehicle cannot be charged.

  On the other hand, for example, it is conceivable to apply the V2V system described in Patent Document 1. However, in the V2V system described in Patent Document 1, it is assumed that one target vehicle is charged with respect to one power supply vehicle, and there is a case where charging of a plurality of target vehicles cannot be sufficiently handled. .

  This invention is made | formed in view of the situation mentioned above, The objective is to provide the electric power feeding system and distributed electric power feeder which can charge a some object vehicle using an electric power feeding vehicle.

  A power supply system that achieves the above object includes a plurality of charging devices used to charge a target power storage device mounted on a target vehicle, and power supply power supplied from the power storage device mounted on the power supply vehicle. A power supply unit that converts the power for charging to the plurality of charging devices, and a power that can be supplied by the power supply vehicle. When the uncharged vehicle is grasped by the uncharged vehicle grasping unit, the uncharged vehicle grasping unit grasping the uncharged vehicle that is the uncharged target vehicle, and the uncharged vehicle grasping unit A power supply determination unit that determines whether or not to supply power to the uncharged vehicle based on the amount of power that can be supplied, and the power supply determination unit determines to supply power to the uncharged vehicle. Was it Based on this, the charging power is distributed from the distributed power supply device to a target charging device used for charging the uncharged vehicle among the plurality of charging devices, and power is supplied from the target charging device to the uncharged vehicle. It is characterized by being able to be seen.

  According to this configuration, it is possible to charge a plurality of target vehicles using the power supply vehicle. Therefore, it is possible to charge a plurality of target vehicles even where there is no infrastructure facility for charging the target vehicles. In addition, when an uncharged vehicle is recognized, it is determined whether or not to supply power to the uncharged vehicle based on the amount of power that can be supplied, and it is determined to supply power to the uncharged vehicle. Based on this, power is supplied to the uncharged vehicle. Therefore, in a configuration in which a plurality of charging devices are provided, an uncharged vehicle can be charged.

  Furthermore, in a stage before power is supplied to the uncharged vehicle, by determining whether power can be supplied to the uncharged vehicle based on the amount of power that can be supplied, charging of the uncharged vehicle is completed in an insufficient state, for example. It is possible to prevent the amount of power of the power supply vehicle from becoming smaller as the power supply vehicle moves or hinders the movement of the power supply vehicle.

  The power supply system is based on a position information acquisition unit that acquires information on a current position of the power supply vehicle, a current position acquired by the position information acquisition unit, position information of a stand, and fuel consumption information of the power supply vehicle. A power requirement calculation unit that calculates a power requirement for movement that is the amount of power required for the power supply vehicle to move from the current position to the stand, and A value obtained by subtracting the amount of power required for movement from the amount of power that can be generated by the power supply vehicle in FIG. According to such a configuration, it is possible to determine whether power can be supplied to an uncharged vehicle in a state where the amount of power necessary for the power supply vehicle to move from the current position to the stand is secured. Thereby, the uncharged vehicle can be charged within a range in which the power supply vehicle can move to the stand.

  About the said electric power feeding system, whenever the said target vehicle is charged, the used electric energy storage part which memorize | stores the used electric energy required for charge of the said target vehicle, and charge of the said several target vehicle are performed The number of vehicles that can be charged is calculated based on the average power consumption calculation unit that calculates an average power consumption that is an average of the power consumption, and the average power consumption and the power supplyable energy. It is good to provide the chargeable number calculation part to perform. According to this configuration, it is possible to grasp the approximate number of vehicles that can be charged, and through this, it is possible to make a schedule for charging and determine whether charging is possible in advance, thereby improving convenience.

  For the power supply system, the power supply determination unit determines that power supply to the uncharged vehicle is performed when the amount of power that can be supplied is larger than the battery capacity of the target power storage device of the uncharged vehicle. When the amount of power that can be fed is smaller than the battery capacity of the target power storage device of the uncharged vehicle, it may be determined not to feed the uncharged vehicle. According to such a configuration, the battery capacity of the uncharged vehicle is employed as a comparison target with the power supply amount. Accordingly, it is possible to determine whether power can be supplied to the uncharged vehicle in consideration of variations in battery capacity for each vehicle type of the uncharged vehicle.

  A distributed power supply device that achieves the above object includes a power conversion unit that converts power supplied from a power storage device mounted in a power supply vehicle into charging power used for charging the target power storage device mounted in the target vehicle. The charging power is distributed to a plurality of charging devices used for charging the target power storage device, and the power supply vehicle grasps the power supplyable power amount that can be supplied by the power supply vehicle When the uncharged vehicle is grasped by the uncharged vehicle grasping unit, the uncharged vehicle grasping unit that grasps the uncharged vehicle that is the target vehicle that is uncharged, A power supply determination unit that determines whether or not to supply power to the uncharged vehicle based on the amount, and based on the determination that the power supply determination unit supplies power to the uncharged vehicle The plurality And performing said dispensing of charging power to the target charging device used for charging the uncharged vehicle out of the charging device.

  According to this configuration, it is possible to charge a plurality of target vehicles using the power supply vehicle. Therefore, it is possible to charge a plurality of target vehicles even where there is no infrastructure facility for charging the target vehicles. In addition, when an uncharged vehicle is recognized, it is determined whether or not to supply power to the uncharged vehicle based on the amount of power that can be supplied, and it is determined to supply power to the uncharged vehicle. Based on this, distribution of charging power from the distributed power supply apparatus to the target charging apparatus is performed. Thereby, electric power feeding to an uncharged vehicle is performed. Therefore, in a configuration in which a plurality of charging devices are provided, an uncharged vehicle can be charged.

  Furthermore, in a stage before distribution of charging power from the distributed power supply device to the target charging device is performed, by determining whether power can be supplied to an uncharged vehicle based on the amount of power that can be supplied, for example, in an insufficient state It can be suppressed that the charging of the uncharged vehicle is completed, or the amount of electric power of the powered vehicle is reduced as the movement of the powered vehicle is hindered.

  According to the present invention, it is possible to charge a plurality of target vehicles using a powered vehicle.

The block diagram which shows the electric constitution of an electric power feeding system and a distributed electric power feeder. The flowchart which shows the charge start control process performed in a distributed electric power feeder control unit. The conceptual diagram for demonstrating battery capacity data. The flowchart which shows the calculation process of the required electric energy of movement performed in a distributed electric power feeder control unit. The conceptual diagram for demonstrating fuel consumption data. The flowchart which shows the charge completion response process performed in a distributed electric power feeder control unit. (A) is a conceptual diagram when an uncharged vehicle is charged, (b) is a conceptual diagram when an uncharged vehicle is not charged. The flowchart which shows the charge start control process of another example.

Hereinafter, an embodiment of the power supply system and the distributed power supply apparatus will be described.
As shown in FIG. 1, the power feeding system 10 uses a plurality of charging devices 11 used to charge a target power storage device 101 mounted on a target vehicle 100 that is a charging target, and a plurality of powers from a power feeding vehicle 200. A distribution power supply device 12 that can be distributed to the charging device 11 is provided.

  The target vehicle 100 is a passenger vehicle such as an electric vehicle (EV), a hybrid vehicle (HV), a plug-in hybrid vehicle (PHV), and the like. The target vehicle 100 is connected to the target power storage device 101 and converts the charging power supplied from the charging device 11 into power suitable for charging, and the target vehicle control for controlling the charger 102 Unit 103. The target vehicle 100 includes a target vehicle communication unit 104 that communicates with the charging device 11.

  In addition, although the specific structure of the charger 102 is arbitrary, for example, in a configuration in which AC power is supplied to the target vehicle 100 from the charging device 11 as charging power, the charger 102 converts AC power into DC power. It may be an AC / DC converter that converts the signal.

  The power supply vehicle 200 is, for example, a vehicle that is larger than the target vehicle 100 and has a power amount that can charge the plurality of target vehicles 100. For example, the power feeding vehicle 200 is a fuel cell bus (FC bus) having a fuel cell 201 and a fuel tank 202 and a power feeding power storage device 203 having a capacity larger than that of the target power storage device 101. The power supply vehicle 200 has a traveling motor and travels using the electric power stored in the power storage device 203. The target power storage device 101 and the power feeding power storage device 203 are, for example, a secondary battery, an electric double layer capacitor, or the like.

  The power supply vehicle 200 includes a power supply vehicle control unit 204 that performs various controls of the power supply vehicle 200, such as control of the fuel cell 201 and charge / discharge control of the power supply power storage device 203, and communicates with the distributed power supply device 12. The power supply vehicle communication unit 205 is provided.

  Next, the charging device 11 will be described. The charging device 11 can charge the target vehicle 100 by being electrically connected to the target vehicle 100. The charging device 11 includes a power supply switch 21 provided on a power line from the distributed power supply device 12 toward the target vehicle 100, and a charging device control unit 22 that performs ON / OFF control of the power supply switch 21. The charging device control unit 22 controls whether or not the charging power supplied from the distributed power feeding device 12 is transmitted to the target vehicle 100 by performing ON / OFF control of the power feeding switch 21. In the initial state, the power supply switch 21 is in an OFF state in which power transmission from the distributed power supply device 12 to the target vehicle 100 is interrupted.

  Incidentally, in the present embodiment, the charging power is distributed from the distributed power supply device 12 to the charging device 11 when the charging device 11 and the distributed power supply device 12 are connected and the power supply switch 21 is in the ON state. Corresponds to the state. On the other hand, the state where the charging device 11 and the distributed power supply device 12 are connected and the power supply switch 21 is in the OFF state is a state where charging power is not distributed from the distributed power supply device 12 to the charging device 11. .

  The charging device 11 includes a charging device communication unit 23 that can communicate with the target vehicle communication unit 104. The charging device control unit 22 and the target vehicle control unit 103 can exchange information through communication between the charging device communication unit 23 and the target vehicle communication unit 104.

  Moreover, the charging device 11 is provided with the charging device alerting | reporting part 24 which performs various alerting | reporting. The charging device notification unit 24 is, for example, a monitor, an audio speaker, or the like, and notifies information related to charging.

  In the present embodiment, three charging devices 11 are provided. Here, for convenience of description, in the following description, the three charging devices 11 are referred to as a first charging device 11a, a second charging device 11b, and a third charging device 11c. Further, the target vehicle 100 charged by the first charging device 11a is defined as the first target vehicle 100a, the target vehicle 100 charged by the second charging device 11b is defined as the second target vehicle 100b, and charged by the third charging device 11c. The target vehicle 100 is the third target vehicle 100c. It can be said that the target vehicles 100a to 100c are vehicles connected to the charging devices 11a to 11c.

  For the sake of distinction, the power feeding switch 21, the charging device control unit 22, the charging device communication unit 23, and the charging device notification unit 24 of the first charging device 11a are replaced with the power feeding switch 21a, the charging device control unit 22a, and the charging device communication unit. 23a and charging device notification unit 24a. Similarly, the power supply switch 21, the charging device control unit 22, the charging device communication unit 23, and the charging device notification unit 24 of the second charging device 11b are replaced with the power supply switch 21b, the charging device control unit 22b, the charging device communication unit 23b, and the charging device. Let it be the notification unit 24b. Then, the power supply switch 21, the charging device control unit 22, the charging device communication unit 23, and the charging device notification unit 24 of the third charging device 11c are replaced with the power supply switch 21c, the charging device control unit 22c, the charging device communication unit 23c, and the charging device notification. Let it be a portion 24c.

  Further, the target power storage device 101, the charger 102, the target vehicle control unit 103, and the target vehicle communication unit 104 of the first target vehicle 100a are replaced with the target power storage device 101a, the charger 102a, the target vehicle control unit 103a, and the target vehicle communication unit 104a. And The target power storage device 101, the charger 102, the target vehicle control unit 103, and the target vehicle communication unit 104 of the second target vehicle 100b are set as the target power storage device 101b, the charger 102b, the target vehicle control unit 103b, and the target vehicle communication unit 104b. . The target power storage device 101, the charger 102, the target vehicle control unit 103, and the target vehicle communication unit 104 of the third target vehicle 100c are set as the target power storage device 101c, the charger 102c, the target vehicle control unit 103c, and the target vehicle communication unit 104c. .

  Next, the distribution power supply device 12 will be described. As shown in FIG. 1, the distribution power supply device 12 is configured to be connectable to both the power supply vehicle 200 and the charging devices 11 a to 11 c. The distributed power supply device 12 converts DC power as power supplied from the power supply vehicle 200 (specifically, the power storage device 203) into AC power as charging power used for charging the target vehicles 100a to 100c. A power conversion unit 31 is provided. The distribution power supply device 12 is configured to be able to distribute the AC power converted by the power conversion unit 31 to each of the charging devices 11a to 11c when connected to the plurality of charging devices 11a to 11c.

  Incidentally, in this embodiment, the cable which connects the distribution electric power feeder 12 and the electric power feeding vehicle 200 is comprised so that attachment or detachment is possible. For this reason, the distribution power supply device 12 and the power supply vehicle 200 can be connected, or both can be disconnected. Similarly, in this embodiment, the cable which connects the distribution power supply apparatus 12 and each charging device 11a-11c is comprised so that attachment or detachment is possible. For this reason, the distribution power supply device 12 and each charging device 11a-11c can be connected, or both can be disconnected.

  The distributed power supply device 12 includes a distributed power supply device control unit 32 that controls the power conversion unit 31 and the like, and a distributed power supply device communication unit 33 that can communicate with both the power supply vehicle communication unit 205 and the charging device communication units 23a to 23c. ing. The distributed power supply control unit 32 can exchange information with the power supply vehicle control unit 204 via communication between the distributed power supply communication unit 33 and the power supply vehicle communication unit 205, and Information can be exchanged with the charging device control units 22a to 22c through communication with the charging device communication units 23a to 23c.

  The distributed power supply apparatus 12 includes a position information acquisition unit 34 that acquires information on the current position. The position information acquisition unit 34 has a GPS (global positioning system) function, for example, and acquires its current position.

  Here, power supply vehicle 200 and distributed power supply apparatus 12 are connected via a cable. In this case, the power supply vehicle 200 and the distribution power supply device 12 are disposed relatively close (for example, several meters to several tens of meters). For this reason, in a situation where the power supply vehicle 200 and the distributed power supply device 12 are connected, it can be said that the position information of the distributed power supply device 12 is also the position information of the power supply vehicle 200.

  As shown in FIG. 1, the distributed power supply apparatus 12 includes a wireless communication unit 35 that performs wireless communication. The distributed power supply device control unit 32 can access the Internet, a server, and the like via wireless communication by the wireless communication unit 35 to perform various distributions.

  Furthermore, the distributed power supply apparatus 12 includes a distributed power supply apparatus notification unit 36 that performs various notifications. The distribution power supply device notification unit 36 is, for example, a monitor, an audio speaker, or the like, and notifies the power amount of the power supply vehicle 200, information about charging, and the like.

  Here, for example, the power supply vehicle 200 travels in a state where the distributed power supply device 12 and the plurality of charging devices 11a to 11c are accommodated, and when power is supplied at a predetermined place (for example, a parking lot), The distributed power supply device 12 and the plurality of charging devices 11a to 11c are unloaded and used. In the distributed power supply control unit 32, the connection of the power supply vehicle 200, the distributed power supply device 12, and the plurality of charging devices 11a to 11c is completed, and the distributed power supply device communication unit 33, the power supply vehicle communication unit 205, and the charging device communication unit 23a to 23a. When communication with the wireless communication unit 23c is established, the wireless communication unit 35 is used to perform power supply possible distribution indicating that power supply is possible together with position information.

  In this state, when the uncharged target vehicle 100 (hereinafter simply referred to as an uncharged vehicle) is newly connected to any of the charging devices 11a to 11c, the distributed power supply control unit 32 grasps the uncharged vehicle. It is configured to be possible. The uncharged vehicle is a target vehicle 100 that is uncharged and is charged using any one of the plurality of charging devices 11a to 11c.

  Specifically, when the target vehicles 100a to 100c are connected, the charging device control units 22a to 22c use the charging device communication units 23a to 23c to send a new connection confirmation signal confirming the new connection to the distributed power feeding device. Transmit to the control unit 32. For example, the charging device control unit 22a of the first charging device 11a distributes a new connection confirmation signal using the charging device communication unit 23a based on the connection of the first target vehicle 100a to the first charging device 11a. The data is transmitted to the power feeding device control unit 32 (specifically, the distributed power feeding device communication unit 33). Then, the distributed power supply control unit 32 grasps the uncharged vehicle by receiving the new connection confirmation signal by the distributed power supply communication unit 33. In the present embodiment, the distributed power supply device control unit 32 corresponds to an “uncharged vehicle grasping unit”.

  The distribution power supply device control unit 32 executes a charge start control process for starting charging the newly connected target vehicle 100 (that is, the uncharged vehicle) based on the fact that the uncharged vehicle is recognized. The charge start control process will be described in detail below.

  As shown in FIG. 2, the distributed power supply control unit 32 first grasps the target charging device corresponding to the uncharged vehicle in step S <b> 101. The target charging device is a charging device 11 used for charging an uncharged vehicle, and more specifically, the charging device 11 connected to an uncharged vehicle. For example, when the first target vehicle 100a is newly connected to the first charging device 11a, the target charging device is the first charging device 11a. The distributed power supply device control unit 32 determines that the charging device 11 that has transmitted the new connection confirmation signal that triggered the execution of the charging start control process among the plurality of charging devices 11a to 11c as the target charging device.

  Thereafter, the distribution power supply device control unit 32 confirms the vehicle type of the uncharged vehicle in step S102. Specifically, for example, the target vehicle control unit 103 of the uncharged vehicle transmits its vehicle type information Va to the charging device control unit 22 of the target charging device, and the charging device control unit 22 of the target charging device The vehicle type information Va is transmitted to the distributed power supply device control unit 32. The distribution power supply device control unit 32 specifies the vehicle type of the uncharged vehicle based on the vehicle type information Va of the uncharged vehicle (target vehicle 100). Note that the vehicle type information Va of the target vehicle 100 is arbitrary as long as the vehicle type can be specified.

  In subsequent step S <b> 103, the distributed power supply device control unit 32 refers to the battery capacity data 32 a stored in the distributed power supply device control unit 32 and derives the battery capacity Cc of the target power storage device 101 of the uncharged vehicle. The battery capacity data 32a is data set by associating the vehicle type information Va of the target vehicle 100 and the battery capacity Cc of the target power storage device 101 as shown in FIG. The distributed power supply control unit 32 derives the battery capacity Cc corresponding to the current uncharged vehicle by referring to the battery capacity data 32a. The battery capacity Cc is the maximum power storage amount of the target power storage device 101 and is a design value determined in advance for each vehicle type.

  After that, as shown in FIG. 2, the distributed power supply control unit 32 calculates a reproducible power amount Cr that is a power amount that can be generated by the power supply vehicle 200 in the current situation in step S104. Specifically, the distributed power supply control unit 32 determines the power generation amount Cr based on the current state of charge of the power storage device 203 and the remaining amount of fuel (for example, hydrogen) stored in the fuel tank 202. calculate.

  Although a specific calculation mode is arbitrary, for example, with respect to the total amount of power that can be generated when the power storage device 203 is fully charged and the fuel in the fuel tank 202 is full. A configuration in which the current charging rate of the power storage device 203 and the ratio of the residual fuel to the total capacity of the fuel tank 202 are taken into consideration can be considered. Further, for example, a value obtained by adding the amount of electric power that can be generated with the current residual fuel and the amount of electric power stored in the current power storage device 203 may be used as the generated electric energy Cr. Note that the total amount of power that can be generated by the power supply vehicle 200 is preferably several times to several tens of times the battery capacity Cc of the target vehicle 100, for example.

  In the subsequent step S105, the distributed power supply apparatus control unit 32 executes a calculation process of a required power amount Cn that is an amount of power required for the power supply vehicle 200 to move from the current position to the stand. Note that the function of the distributed power supply apparatus control unit 32 executing the calculation process of the required power amount Cn corresponds to the “required power amount calculation unit”.

  The calculation process will be described in detail. As shown in FIG. 4, the distribution power supply device control unit 32 first, in step S201, based on the acquisition result of the position information acquisition unit 34, in other words, the power supply vehicle 200 (in other words, distribution). The current position of the power feeding device 12) is grasped.

  Thereafter, in step S202, the distributed power supply control unit 32 confirms the route from the current position to the stand based on the current position and the position information of the stand. Incidentally, the position information of the stand may be stored in advance in the distributed power supply apparatus control unit 32, or may be configured to acquire the position information of the nearest stand from the wireless communication unit 35.

  In subsequent steps S203 and S204, the distributed power supply device control unit 32 grasps the fuel consumption information F of the power supply vehicle 200. Specifically, the distribution power supply control unit 32 first acquires the vehicle type information Vb of the power supply vehicle 200 by communicating with the power supply vehicle control unit 204 in step S203. Then, in step S204, the distributed power supply control unit 32 refers to the fuel consumption data 32b stored in advance in the distributed power supply control unit 32, and the power supply vehicle 200 connected to the current distributed power supply device 12 is referred to. The fuel consumption information F is grasped. The fuel consumption data 32b is data in which vehicle type information Vb and fuel consumption information F of the powered vehicle 200 are set in association with each other as shown in FIG. 5, for example. The distributed power supply device control unit 32 grasps the fuel consumption information F of the power supply vehicle 200 connected to the distributed power supply device 12 by referring to the fuel consumption data 32b.

  The fuel consumption information F set in the fuel consumption data 32b may be set in correspondence with the minimum fuel consumption. For example, when the power supply vehicle 200 is a vehicle on which a plurality of passengers can ride, such as a fuel cell bus, for example, the fuel consumption information F set in the fuel consumption data 32b is the fuel consumption when the maximum number of passengers rides. Good.

  After the execution of the process of step S204, the distributed power supply apparatus control unit 32 is based on the current position and the route from the current position to the stand derived from the position information of the stand and the fuel efficiency information F in step S205. The required movement energy Cn is calculated, and this calculation process ends.

  Returning to the description of FIG. 2, the distribution power supply control unit 32 proceeds to Step S106 after executing the calculation process of the required moving power amount Cn, and grasps the power supplyable power amount Cp which is the power supplyable power amount (in detail). Is calculated). The power supply possible electric energy Cp is a value obtained by subtracting the required moving electric energy Cn calculated in Step S105 from the generatable electric energy Cr calculated in Step S104. The function of the distributed power supply apparatus control unit 32 executing the process of step S106 corresponds to the “power supply amount grasping unit”.

  In subsequent step S107, the distributed power supply control unit 32 determines whether or not the power supply possible amount Cp calculated in step S106 is larger than the battery capacity Cc of the uncharged vehicle derived in step S103. . The function of the distributed power supply device control unit 32 executing the process of step S107 corresponds to the “power supply determination unit”.

  When the power supplyable power amount Cp is larger than the battery capacity Cc, it is possible to fully charge an uncharged vehicle using the power supply vehicle 200 while securing the amount of power that the power supply vehicle 200 moves from the current position to the stand. Means that. In this case, the distributed power supply control unit 32 makes a positive determination in step S107 and proceeds to step S108. In step S <b> 108, the distributed power supply control unit 32 controls the distributed power supply notification unit 36 so that a chargeable notification that is a notification that charging is possible is performed.

  In step S109, the distributed power supply apparatus control unit 32 starts charging the uncharged vehicle and ends the main charging start control process. Specifically, the distributed power supply control unit 32 distributes AC power from the distributed power supply device 12 toward the target charging device used for charging the uncharged vehicle, and power is supplied from the target charging device to the uncharged vehicle. Like that. Specifically, the distributed power supply control unit 32 transmits a charge start command to the charging device control unit 22 of the target charging device. The charging device control unit 22 of the target charging device switches the power supply switch 21 of the target charging device from the OFF state to the ON state based on the reception of the charging start command by the charging device communication unit 23. As a result, AC power from the distribution power supply device 12 is supplied to the uncharged vehicle.

  Note that the charging device control unit 22 of the target charging device is configured to notify the charging device 21 that charging is in progress based on switching the power supply switch 21 of the target charging device from the OFF state to the ON state. The charging device notification unit 24 is controlled.

  On the other hand, when the power supply possible electric energy Cp is equal to or less than the battery capacity Cc of the uncharged vehicle, the distributed power supply device control unit 32 makes a negative determination in step S107 and executes a process corresponding to not charging. Specifically, in step S110, distributed power supply apparatus control unit 32 controls distributed power supply apparatus notification unit 36 so that a charge failure notification that is a notification that charging cannot be performed is performed. In addition, the distributed power supply device control unit 32 transmits a charge impossible notification to the charging device control unit 22 of the target charging device using the distributed power supply device communication unit 33. The charging device control unit 22 of the target charging device maintains the power supply switch 21 of the target charging device in the OFF state based on the reception of the charging impossible notification by the charging device communication unit 23, and performs a notification of charging failure. The charging device notification unit 24 of the target charging device is controlled as described above. In step S111, the distribution power supply device control unit 32 executes a distribution stop process for stopping the power supply possible distribution using the wireless communication unit 35, and ends the charge start control process.

  When the charging of the uncharged vehicle is started, the charging device control unit 22 of the target charging device periodically determines whether or not a predetermined charging end condition is satisfied. The charging end condition is arbitrary. For example, in the configuration in which the charging state of the target power storage device 101 of the uncharged vehicle is in a fully charged state or the charging devices 11a to 11c are provided with the charging stop button, the target charging is performed. It is conceivable that the charging stop button of the device has been operated.

  The charging device control unit 22 of the target charging device switches the power supply switch 21 of the target charging device from the ON state to the OFF state based on the fact that the charging end condition is satisfied. Thereby, the charging of the target vehicle 100 that is the charging target ends.

  Here, the distributed power supply control unit 32 executes the charging termination handling process based on the completion of the charging of the target vehicle 100 that is the charging target. The charging end handling process will be described in detail below.

  As shown in FIG. 6, first, in step S <b> 301, the distributed power supply control unit 32 grasps the power consumption Cu used for charging the target vehicle 100 that is the current charging target. In addition, although the grasping | ascertaining aspect of used electric energy Cu is arbitrary, in the structure provided with the current sensor etc. which detect the electric current which flows into the target electrical storage apparatus 101a-101c of the target vehicles 100a-100c, for example, distributed electric power feeder control The unit 32 may be configured to calculate the power consumption Cu from the detection result of the current sensor.

  Then, in step S302, the distributed power supply apparatus control unit 32 updates the power supply possible electric energy Cp. The distribution power supply device control unit 32 sets a value obtained by subtracting the power consumption amount Cu from the power supplyable power amount Cp before update as a new power supplyable power amount Cp.

  In subsequent step S <b> 303, distributed power supply apparatus control unit 32 updates a charging history that is a history of charging target vehicle 100. The charge history includes, for example, information related to the power consumption Cu for each target vehicle 100 that is a charge target. That is, the distributed power supply control unit 32 stores the used electric energy Cu required for charging the target vehicle 100 every time the target vehicle 100 is charged. The function that the distributed power supply device control unit 32 executes the processes of step S301 and step S303 corresponds to the “power consumption storage unit”.

  In step S304, the distributed power supply control unit 32 calculates an average used power amount Cuave, which is an average value of the used power amount Cu, based on the charging history. The function of the distributed power supply device control unit 32 executing the process of step S304 corresponds to the “average power consumption calculation unit”.

  In subsequent step S305, the distributed power supply control unit 32 calculates the rechargeable number Nv, which is the number of rechargeable vehicles, based on the average power consumption Cave and the updated power supplyable power amount Cp. The rechargeable number Nv is a value obtained by dividing the power supply amount Cp by the average power consumption Cuave (Nv = Cp / Cave). The function of the distributed power supply device control unit 32 executing the process of step S305 corresponds to the “chargeable number calculation unit”.

  In subsequent step S306, the distributed power supply device control unit 32 controls the distributed power supply device notification unit 36 so that notification regarding the rechargeable number Nv is performed. In step S307, the distributed power supply control unit 32 controls the wireless communication unit 35 so that the information related to the rechargeable number Nv is distributed on the Internet, and ends the charging end handling process.

  Incidentally, when the chargeable number Nv is equal to or less than “1”, the distributed power supply control unit 32 replaces the processing in step S306 and step S307 with the charge disapproval notification in step S110 and the distribution stop processing in step S111. May be executed.

Next, the operation of this embodiment will be described.
As shown to Fig.7 (a), when the 1st object vehicle 100a as an uncharged vehicle is connected to the 1st charging device 11a, the battery capacity Cc of the 1st object vehicle 100a and the electric power feeding in the present condition are possible The amount of power Cp is compared. In this case, when the power supply possible amount Cp is larger than the battery capacity Cc of the first target vehicle 100a (Cp> Cc), the power supply switch 21a of the first charging device 11a is switched from the OFF state to the ON state. Thereby, as shown by the arrow of Fig.7 (a), alternating current power is distributed from the distribution electric power feeder 12 to the 1st charging device 11a, and the said alternating current power is supplied to the 1st object vehicle 100a.

  Moreover, as shown in FIG.7 (b), when the 3rd target vehicle 100c as an uncharged vehicle is connected to the 3rd charging device 11c, the battery capacity Cc of the 3rd target vehicle 100c, and the present condition The amount of power Cp that can be fed is compared. In this case, when the power supply possible electric energy Cp is smaller than the battery capacity Cc of the third target vehicle 100c (Cp <Cc), the power supply switch 21c of the third charging device 11c maintains the OFF state. For this reason, as shown by the arrow of FIG.7 (b), the electric power feeding to the 3rd object vehicle 100c is not performed.

According to the embodiment described above in detail, the following effects are obtained.
(1) The power feeding system 10 includes a plurality of charging devices 11a to 11c used to charge the target power storage devices 101a to 101c mounted on the target vehicles 100a to 100c. The power supply system 10 converts power, which is DC power supplied from a power storage device 203 mounted on the power supply vehicle 200, into AC power as charging power used for charging the target vehicles 100a to 100c. The distribution power supply device 12 that includes the unit 31 and distributes the AC power to the plurality of charging devices 11a to 11c is provided. As a result, the plurality of target vehicles 100 a to 100 c can be charged using the power supply vehicle 200. Therefore, even if there is no infrastructure facility relating to charging of the target vehicles 100a to 100c, the plurality of target vehicles 100a to 100c can be charged. In other words, a mobile charging stand that can charge the plurality of target vehicles 100a to 100c using the power supply vehicle 200 can be realized.

  In such a configuration, the distributed power supply control unit 32 of the distributed power supply apparatus 12 grasps the power supplyable amount Cp that is the amount of power that can be supplied by the power supply vehicle 200. In addition, the distribution power supply control unit 32 grasps the uncharged vehicle that is the uncharged target vehicle 100, and when the uncharged vehicle is grasped, the distribution power feeding device control unit 32 moves to the uncharged vehicle based on the power supply power amount Cp. The power supply determination, which is a determination as to whether or not to perform the power supply, is performed. Then, based on the determination that the power supply system 10 supplies power to the uncharged vehicle, the target charging device used for charging the uncharged vehicle among the plurality of charging devices 11a to 11c from the distributed power supply device 12. AC power is distributed to the vehicle so that power is supplied from the target charging device to the uncharged vehicle. Specifically, the power supply system 10 controls the target charging device so that the power supply switch 21 of the target charging device is switched from the OFF state to the ON state. Thereby, it is possible to charge an uncharged vehicle without supplying power to the charged target vehicle 100 or the charging device 11 to which the target vehicle 100 is not connected. In addition, by performing power supply determination based on the power supply possible amount Cp before power is supplied to the uncharged vehicle, for example, charging of the uncharged vehicle may be completed in an insufficient state, It can be suppressed that the amount of electric power of the power supply vehicle 200 becomes smaller as the movement of the 200 is hindered.

  (2) The distribution power supply control unit 32 determines that the power supply to the uncharged vehicle is performed when the power supplyable power amount Cp is larger than the battery capacity Cc of the uncharged vehicle. If it is smaller than the battery capacity Cc of the uncharged vehicle, it is determined that power is not supplied to the uncharged vehicle. Thereby, the effect (1) can be obtained.

  Further, the battery capacity Cc of the uncharged vehicle is adopted as a comparison target with the power supply amount Cp. The battery capacity Cc is different for each vehicle type, and is a predetermined design value. Thereby, it is possible to perform the power feeding determination in consideration of the variation in the battery capacity Cc for each vehicle type of the uncharged vehicle.

  In particular, since the battery capacity Cc is the maximum value of the amount of power that can be stored in the target power storage device 101, when the power supplyable amount Cp is larger than the battery capacity Cc of the uncharged vehicle, the target power storage device of the uncharged vehicle. Regardless of the state of charge of 101, the target power storage device 101 can be fully charged. Thereby, the target power storage device 101 can be suitably charged without considering the state of charge of the target power storage device 101 of the uncharged vehicle.

  (3) The distributed power supply apparatus 12 includes a position information acquisition unit 34 that acquires information on the current position of the power supply vehicle 200. Based on the current position acquired by the position information acquisition unit 34, the position information of the stand, and the fuel efficiency information F of the power supply vehicle 200, the distributed power supply device control unit 32 moves the power supply vehicle 200 from the current position to the stand. A process of calculating the required movement power amount Cn, which is the amount of power required to move, is executed. Then, the distributed power supply apparatus control unit 32 sets a value obtained by subtracting the required moving power amount Cn from the generateable power amount Cr, which is the power amount that can be generated by the power supply vehicle 200 in the current situation, as the feedable power amount Cp. Thereby, it is possible to perform the power feeding determination in a state in which the amount of power necessary for the power feeding vehicle 200 to move from the current position to the stand is secured. Therefore, the uncharged vehicle can be charged within a range in which the power supply vehicle 200 can move to the stand.

  (4) Each time the target vehicle 100 is charged, the distributed power supply control unit 32 stores the power consumption Cu required for charging the target vehicle 100. Then, when the plurality of target vehicles 100 are charged, the distributed power supply device control unit 32 calculates an average power consumption Cuave that is an average of the power consumption Cu and can supply power to the average power consumption Cuave. Based on the electric power amount Cp, the rechargeable number Nv, which is the number of rechargeable vehicles, is calculated. As a result, by grasping the number Nv of rechargeable charge, it is possible to make a charge schedule or determine whether or not charge is possible in advance, so that convenience can be improved.

  (5) The power supply vehicle 200 is a fuel cell bus. Thereby, the electric power feeding vehicle 200 as a transportation means which carries a passenger | crew and drive | works a predetermined | prescribed route can be functioned as a mobile charging stand as needed. Therefore, the fuel cell bus can be effectively used.

In addition, you may change the said embodiment as follows.
The distribution power supply device control unit 32 is suitable for a case where an uncharged vehicle is connected to another charging device 11 in a situation where charging is performed by any of the charging devices 11a to 11c. The structure which can be provided may be provided.

  For example, as illustrated in FIG. 8, the distribution power supply control unit 32 triggered the execution of the charge start control process in step S401 after the process of steps S101 to S105 in the charge start control process. In addition to the uncharged vehicle, it is determined whether there is a target vehicle 100 being charged.

  In the distributed power supply control unit 32, when the target vehicle 100 being charged does not exist, that is, when the target vehicle 100 is not connected to the charging device 11 other than the target charging device, or the charged target vehicle 100 is connected. If yes, a negative determination is made in step S401, and the process of step S106 is executed.

  On the other hand, when there is a target vehicle 100 that is being charged, the distributed power supply control unit 32 determines that the first target vehicle 100a is, for example, at the timing when the second target vehicle 100b as an uncharged vehicle is connected to the second charging device 11b. If the battery is being charged, affirmative determination is made in step S401 and the process proceeds to step S402. In step S402, the distributed power supply control unit 32 grasps the battery capacity Cca of the target vehicle 100 being charged (in the above example, the battery capacity Cc of the first target vehicle 100a).

  Then, in step S403, the distributed power supply device control unit 32 calculates a power supply possible amount Cp. Specifically, the distribution power supply device control unit 32 subtracts the required power amount Cn and the battery capacity Cca of the target vehicle 100 determined in step S402 from the power amount Cr that can be generated. Let Cp (Cp = Cr-Cn-Cca).

  After executing the process of step S106 or step S403, the distributed power supply apparatus control unit 32 executes the processes of step S107 to step S111 and ends the charge start control process. In other words, in this example, when the uncharged vehicle is recognized, the distribution power supply control unit 32 can generate electric energy when the target vehicle 100 different from the uncharged vehicle is being charged. A value obtained by subtracting the battery capacity Cca of the target vehicle 100 being charged from Cr is calculated as the power supplyable electric energy Cp. As a result, the power supply determination can be performed in a state in which the amount of power required for charging the target vehicle 100 that is already being charged is sufficiently secured. Therefore, the target that is already being charged can be obtained by charging an uncharged vehicle connected later. It is possible to avoid the inconvenience that the vehicle 100 is not fully charged.

  The position information acquisition unit 34 may be mounted on the power supply vehicle 200 instead of the distributed power supply device 12. In this case, the power supply vehicle control unit 204 may transmit the position information of the power supply vehicle 200 to the distributed power supply device control unit 32 via the power supply vehicle communication unit 205 and the distributed power supply device communication unit 33.

  The power supply vehicle 200 may be an electric vehicle (EV) in which the fuel cell 201 and the fuel tank 202 are omitted. In this case, the generatable power amount Cr is the amount of power stored in the power storage device 203 in the current situation. In addition, the power supply vehicle 200 may be a hybrid vehicle (HV) or a plug-in hybrid vehicle (PHV).

  The power supply vehicle 200 is not limited to a vehicle having a function as a transportation means such as a fuel cell bus. For example, the power supply vehicle 200 may be a charging vehicle that omits a space where an occupant can ride and is mounted with a power storage device correspondingly. The charging vehicle may be configured to have a dedicated power storage device that is used only for charging the target vehicle 100 and is not used for its own traveling. In this case, the amount of power stored in the dedicated power storage device is the amount of power Cp that can be supplied.

  O The comparison object with the electric power Cp which can be supplied is not restricted to the battery capacity Cc. For example, instead of the battery capacity Cc, the distributed power supply control unit 32 calculates a required power amount that is a power amount necessary for full charge from the current charging state of the target power storage device 101 of the uncharged vehicle, and the required power It is good also as a structure which compares quantity and electric power amount Cp which can be supplied. In this case, it is possible to avoid a situation where it is determined that charging cannot be performed even though full charging is possible. In this alternative example, the distributed power supply control unit 32 may acquire the charge state of the target power storage device 101 via the charging device control unit 22.

In addition, instead of the battery capacity Cc, a predetermined specific power amount may be adopted as a comparison target of the power supplyable power amount Cp.
The battery capacity data 32a and the fuel consumption data 32b do not need to be stored in advance in the distributed power supply control unit 32, and may be configured to be acquired from a server or the like via the wireless communication unit 35, for example.

  The cable that connects the distribution power supply device 12 and the power supply vehicle 200 may be configured to be non-detachable, and the cable that connects the distribution power supply device 12 to each of the charging devices 11a to 11c is configured to be non-detachable. It may be. In short, the connection mode of the power supply vehicle 200, the distributed power supply device 12, and the plurality of charging devices 11a to 11c may be set as appropriate in consideration of specific usage modes.

  In embodiment, although the distribution electric power feeder 12 and the some charging device 11a-11c were accommodated in the electric power feeding vehicle 200, it is not restricted to this. For example, a plurality of charging devices 11a to 11c may be installed in a space such as a parking lot. In this case, when the power supply vehicle 200 in which the distributed power supply device 12 is accommodated stops in the space, the distributed power supply device 12 and the plurality of charging devices 11a to 11c may be connected.

  Furthermore, the distributed power supply device 12 and the plurality of charging devices 11a to 11c may be installed in a space such as a parking lot in a state of being connected to each other. In this case, when the power supply vehicle 200 stops in the space, the power supply vehicle 200 and the distribution power supply device 12 may be connected.

  The power feeding switches 21 a to 21 c may be provided in the distributed power feeding device 12. In this case, the distribution power supply device control unit 32 may control the power supply switches 21a to 21c individually. In short, the power feeding system 10 may control the distributed power feeding device 12 or control the target charging device so that the power for charging is distributed from the distributed power feeding device 12 to the target charging device. May be.

  In the charging start control process after the second time after the power supply vehicle 200 stops, the process of step S105 may be omitted. In step S106 of the second and subsequent charging start control processing, the power supplyable energy amount Cp may be calculated as usual, or the power supplyable power amount Cp updated in step S302 of the charging end handling processing is adopted. May be.

  ○ The required amount of electric power Cn was calculated based on the route from the current position to the stand and the fuel efficiency information F, but may be a predetermined value or may be appropriately determined by an administrator or the like. It may be a set value. Similarly, the initial value of the power supply possible amount Cp may be a value appropriately set by an administrator or the like.

  The charging device 11 is configured to be able to charge the target vehicle 100 by being electrically connected to the target vehicle 100. However, the charging device 11 is not limited thereto, and is configured to supply power to the target vehicle 100 in a non-contact manner. There may be. Specifically, the charging device 11 includes a primary side coil to which AC power is supplied, and the target vehicle 100 includes a secondary side coil that can receive the AC power supplied to the primary side coil in a contactless manner. It is good to have. Moreover, the number of the charging devices 11 is arbitrary.

  ○ The method of grasping uncharged vehicles is arbitrary. For example, in a configuration including a wireless communication unit in which the charging device 11 and the target vehicle 100 perform wireless communication, the charging device control unit 22 grasps an uncharged vehicle via the wireless communication, and the grasping result May be transmitted to the distributed power supply device control unit 32. In short, the specific configuration of the distributed power supply control unit 32 is arbitrary as long as it can identify and grasp the charged target vehicle 100 and the uncharged target vehicle 100.

  The execution subject of the charging start control process is not limited to the distributed power supply device control unit 32, and may be the charging device control unit 22, for example. In this case, the distributed power supply device control unit 32 may appropriately transmit information necessary for the charging start control process to the charging device control unit 22.

  In the embodiment, the power supply vehicle 200 is configured to supply DC power and the target vehicle 100 is charged by receiving AC power, but is not limited thereto. For example, the configuration may be such that charging is performed when the power supply vehicle 200 supplies AC power and the target vehicle 100 receives DC power. In this case, the feeding power is AC power, and the charging power is DC power.

  In such a configuration, the power supply vehicle 200 may include a DC / AC converter that converts the DC power of the power storage device 203 into AC power. The power conversion unit 31 is preferably an AC / DC converter, for example. In this case, the charging device 11 may be provided with a DC / DC converter, or the charger 102 of the target vehicle 100 may be omitted.

  Alternatively, the power supply vehicle 200 may supply DC power and the target vehicle 100 may be charged by receiving DC power. In this case, the power conversion unit 31 may be a DC / DC converter, for example.

  DESCRIPTION OF SYMBOLS 10 ... Power feeding system, 11 ... Charging device, 12 ... Distributed power feeding device, 31 ... Power conversion unit, 32 ... Distributed power feeding device control unit, 34 ... Position information acquisition unit, 35 ... Wireless communication unit, 100 ... Target vehicle, 101 ... Target power storage device, 200 ... Power feeding vehicle, 203 ... Power feeding power storage device, Cp ... Power supplyable power amount, Cc ... Battery capacity of target power storage device, Cn ... Moveable power amount, Cr ... Generable power amount, Cu ... Power usage amount , Cuave: Average power consumption, Nv: Number of rechargeable units.

Claims (5)

A plurality of charging devices used to charge a target power storage device mounted on the target vehicle;
A power conversion unit that converts power supplied from a power storage device mounted on the power supply vehicle into power for charge used for charging the target vehicle, and distributes the charge power to the plurality of charging devices; A distributed power supply device;
A feedable power amount grasping unit for grasping a feedable power amount that is a power amount that can be fed by the power supply vehicle;
An uncharged vehicle grasping unit for grasping an uncharged vehicle that is the uncharged target vehicle;
When the uncharged vehicle is grasped by the uncharged vehicle grasping unit, based on the amount of power that can be fed, a power feeding determination unit that determines whether to feed power to the uncharged vehicle;
And the target charging device used for charging the uncharged vehicle among the plurality of charging devices from the distributed power supply device based on the determination that the power supply determination unit supplies power to the uncharged vehicle. The charging power is distributed to the target charging device so that power is supplied from the target charging device to the uncharged vehicle. A position information acquisition unit for acquiring information of a current position of the power supply vehicle;
Based on the current position acquired by the position information acquisition unit, the position information of the stand, and the fuel consumption information of the power supply vehicle, it is necessary to move that is the amount of power required for the power supply vehicle to move from the current position to the stand A power requirement calculation unit for calculating power consumption,
With
2. The power feeding system according to claim 1, wherein the feedable power amount grasping unit sets a value obtained by subtracting the amount of power required for movement from a power amount that can be generated by the power feeding vehicle in a current situation as the power feedable power amount. A used power amount storage unit that stores a used power amount required for charging the target vehicle every time the target vehicle is charged;
When the plurality of target vehicles are charged, an average power consumption calculating unit that calculates an average power consumption that is an average of the power consumption, and
A rechargeable number calculating unit that calculates the number of rechargeable vehicles based on the average amount of power used and the amount of power that can be supplied;
The electric power feeding system of Claim 1 or Claim 2 provided with.   The power supply determination unit determines that power supply to the uncharged vehicle is performed when the power supplyable power amount is larger than a battery capacity of the target power storage device of the uncharged vehicle, while the power supplyable power amount The power feeding system according to any one of claims 1 to 3, wherein when the battery capacity is smaller than a battery capacity of the target power storage device of the uncharged vehicle, it is determined that power is not supplied to the uncharged vehicle. A power conversion unit that converts the power supplied from the power storage device mounted on the power supply vehicle to the power for charging used for charging the target power storage device mounted on the target vehicle, A distribution power supply device that distributes to a plurality of charging devices used for charging the target power storage device,
A feedable power amount grasping unit for grasping a feedable power amount that is a power amount that can be fed by the power supply vehicle;
An uncharged vehicle grasping unit for grasping an uncharged vehicle that is the uncharged target vehicle;
When the uncharged vehicle is grasped by the uncharged vehicle grasping unit, based on the amount of power that can be fed, a power feeding determination unit that determines whether to feed power to the uncharged vehicle;
And charging the target charging device used for charging the uncharged vehicle among the plurality of charging devices based on the determination that the power supply determination unit supplies power to the uncharged vehicle. A distribution power supply device that distributes power for operation.