WO2020162553A1 - Charging equipment, and method for controlling charging equipment - Google Patents

Charging equipment, and method for controlling charging equipment Download PDF

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Publication number
WO2020162553A1
WO2020162553A1 PCT/JP2020/004624 JP2020004624W WO2020162553A1 WO 2020162553 A1 WO2020162553 A1 WO 2020162553A1 JP 2020004624 W JP2020004624 W JP 2020004624W WO 2020162553 A1 WO2020162553 A1 WO 2020162553A1
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WIPO (PCT)
Prior art keywords
charging
power
information
control device
stations
Prior art date
Application number
PCT/JP2020/004624
Other languages
French (fr)
Japanese (ja)
Inventor
泰城 岩田
Original Assignee
株式会社豊田自動織機
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Publication date
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Publication of WO2020162553A1 publication Critical patent/WO2020162553A1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/40Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/50Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L55/00Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225Demand response systems, e.g. load shedding, peak shaving
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/12Electric charging stations
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/14Plug-in electric vehicles
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/16Information or communication technologies improving the operation of electric vehicles
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/16Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20End-user application control systems
    • Y04S20/222Demand response systems, e.g. load shedding, peak shaving
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/12Remote or cooperative charging
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Definitions

  • the present disclosure relates to a charging facility and a method for controlling the charging facility.
  • the charging system described in the above document includes a plurality of charging stations that charge a secondary battery that is a power source of an electric vehicle, and a host controller that sets the power distributed to the plurality of charging stations.
  • the host controller sets the power to be distributed based on the power demand trend of the charging station.
  • the charging station charges the secondary battery of the electric vehicle based on the distributed electric power.
  • An object of the present disclosure is to provide a charging facility that can appropriately set charging power distributed to each of a plurality of charging stations.
  • a charging facility is a charging facility including a plurality of charging stations, and each of the plurality of charging stations charges a secondary battery of an electric vehicle with electric power supplied from a system power supply.
  • a plurality of charging devices configured to perform, and a charging control device that is provided so as to be able to communicate with the charging device and the host control device, wherein the charging control devices of the plurality of charging stations are a network. It is possible to acquire information of each other by constructing, each of the charging control device of the plurality of charging stations, the charging information is information about the charging of the secondary battery, so as to obtain from the charging device.
  • a charging information acquisition unit configured, priority information, which is information indicating which of the charging devices is preferentially distributed with power, a priority information acquisition unit configured to acquire from the higher-order control device,
  • the chargeable power that is power that can be used in the charging facility is acquired by the chargeable power acquisition unit configured to acquire from the higher-level control device, the priority information, and the charging information acquisition unit.
  • a calculation unit configured to calculate, from the charging information and the charging information acquired from another charging station via the network, charging power allocated to the charging station of the rechargeable power. , Is provided.
  • the charging control device of each charging station can acquire the charging information of other charging stations via the network.
  • Each charging control device calculates charging power based on priority information, charging information of its own charging station, and charging information of another charging station. In addition to its own charging station, charging power is calculated by taking into account charging information of other charging stations. Therefore, it is possible to set an appropriate charging power according to the charging information. Further, since the charging power is calculated based on the priority information, the power can be preferentially distributed to the specific charging device.
  • the calculation unit is configured to calculate the charging power at each preset time, and the charging device calculates the charging power and then calculates the charging power. If the connection of the electric vehicle to the charging device is detected before the operation, the secondary battery may be charged after the calculation of the charging power is performed next.
  • the control performed by the charging control device can be simplified as compared with the case where the charging power is calculated when the connection of the electric vehicle is detected.
  • a method for controlling a charging facility including the above various processes may be provided, and a program for causing a processor to execute the various processes and a non-transitory computer-readable storage medium storing the program may be provided. ..
  • charging power distributed to each of a plurality of charging stations can be appropriately set.
  • the schematic block diagram of a charging system The block diagram which shows typically the charging equipment in the charging system of a figure.
  • the interaction diagram of a host controller, a charge controller, and a charger In the charging system of the figure, the interaction diagram of a host controller, a charge controller, and a charger.
  • the charging system 10 includes a charging facility 20 and a host controller 40.
  • the charging facility 20 is provided in a customer who is supplied with power from a power supplier such as a power company. Examples of consumers include factories, public facilities, and commercial facilities.
  • the customer is provided with a load 11 other than the charging facility 20.
  • the electric power supplied from the electric power supplier through the system power supply 12 is shared by the charging facility 20 and the load 11 other than the charging facility 20.
  • the charging system 10 is a system that performs control so that the electric power used by the charging facility 20 and the load 11 does not exceed a set value.
  • the charging facility 20 includes a plurality of charging stations 21.
  • three charging stations 21 will be described as an example, but the number of charging stations 21 may be changed as appropriate.
  • the charging station 21 is a facility for charging the secondary battery 51 mounted on the electric vehicle 50.
  • the electric vehicle 50 includes a secondary battery 51, a battery control unit 52, and a communication unit 53.
  • the electric vehicle 50 is a vehicle that runs using a rechargeable secondary battery 51 as a power source.
  • the secondary battery 51 any type of secondary battery such as a lithium ion secondary battery or a nickel hydrogen secondary battery may be used.
  • the electric vehicle 50 may be of any type such as a passenger vehicle such as an electric vehicle or a plug-in hybrid vehicle, an industrial vehicle such as a forklift, or the like.
  • the battery control unit 52 estimates SOC: State of Charge, which is the charging rate of the secondary battery 51, and monitors the state of the secondary battery 51 such as the voltage and temperature of the secondary battery 51.
  • the communication unit 53 transmits information about the secondary battery 51, such as the charging rate of the secondary battery 51, to the charging station 21.
  • Each charging station 21 includes a plurality of charging devices 22 and a charging control device 31. Although the two charging devices 22 are illustrated in the present embodiment, the number of the charging devices 22 may be appropriately changed.
  • the charging station 21 is a unit including a charging control device 31 and a plurality of charging devices 22 connected to the charging control device 31 by wiring 28.
  • the plurality of charging stations 21 may be two or more charging stations 21 provided in two or more geographically separated sections, or two or more charging stations 21 provided in the same geographical area.
  • the charging stations 21 are described as having the same configuration, but the specifications of the charging device 22 such as the maximum charging power that the charging device 22 can output may be different for each charging station 21.
  • the charging device 22 includes a converter 23 that converts AC power supplied from the system power supply 12 into DC power, a charging plug 24 connected to the electric vehicle 50, and a first communication unit 25.
  • the second communication unit 26 and the control unit 27 are included.
  • the first communication unit 25 is a member for transmitting and receiving information to and from the communication unit 53 of the electric vehicle 50.
  • the second communication unit 26 is a member for transmitting and receiving information to and from the charging control device 31.
  • the control unit 27 controls the charging device 22.
  • the control unit 27 can detect that the charging plug 24 is connected to the electric vehicle 50.
  • the conversion unit 23 and the secondary battery 51 are connected to each other, and the first communication unit 25 and the communication unit 53 are connected to each other.
  • the control unit 27 can acquire information about the secondary battery 51, such as the charging rate of the secondary battery 51.
  • the control unit 27 controls the conversion unit 23 according to the charging power instruction value instructed from the charging control device 31 through the second communication unit 26.
  • the secondary battery 51 is charged by the DC power output from the conversion unit 23.
  • the charging information is transmitted from the second communication unit 26 to the charging control device 31.
  • the charging information is information about charging of the secondary battery 51, specifically, information necessary for charging the secondary battery 51 in the charging facility 20.
  • the charging information includes at least one of information about the charging device 22, information about the secondary battery 51, and information about the electric vehicle 50.
  • the charging information includes connection state information, identification information, specifications of the charging device 22, and information about the secondary battery 51.
  • the connection status information includes whether the charging plug 24 is connected to the electric vehicle 50, whether the charging device 22 is charging the secondary battery 51, whether the charging device 22 has charged the secondary battery 51, and the like. Is information indicating the state of charge of the charging device 22.
  • the identification information is information indicating a unique ID that is individually set for each charging device 22.
  • the specifications of the charging device 22 are information indicating the maximum charging power that the charging device 22 can output and the like.
  • the charging control device 31 of each charging station 21 is connected to be able to communicate with each other. More specifically, the charging facility 20 includes a hub 32 and a wiring 33, and the wiring 33 connects the hub 32 and each charging control device 31 to each other. The charge control devices 31 are connected to each other via the hub 32. As a result, a network is constructed by each charging control device 31. In the present embodiment, the charging control devices 31 of the plurality of charging stations 21 are mutually connected by the hub 32, so that a star-type local area network is constructed.
  • the hub 32 is connected to the host controller 40 in a communicable state. Each charging control device 31 can communicate with the host control device 40 via the hub 32. Each charging control device 31 transmits charging information to the host control device 40.
  • the upper control device 40 is a server.
  • the host controller 40 may be provided in a customer or may be provided in a place different from the customer.
  • the upper control device 40 includes an information management unit 41 and a power management unit 42.
  • the information management unit 41 and the power management unit 42 are functional units that function when the CPU of the host controller 40 performs predetermined processing.
  • the information management unit 41 stores and analyzes the charging information acquired from the charging control device 31. That is, the information management unit 41 is a database of charging information.
  • the power management unit 42 calculates chargeable power.
  • the rechargeable power is, of the power supplied from the system power supply 12, power that can be used in the charging facility 20, that is, power that can be used to charge the secondary battery 51.
  • the chargeable power is power that is calculated based on the power used by the load 11 other than the charging facility 20 and the set value.
  • the chargeable power is calculated so that the set value is not exceeded even if the chargeable power is added to the power used by the load 11. That is, it can be said that the rechargeable power is calculated so that the power used by all the consumers does not exceed the set value.
  • As the set value for example, contract electric power that is electric power determined by a contract with an electric power supplier, or a value lower than the contract electric power can be mentioned.
  • the power management unit 42 transmits chargeable power and priority information to each charging control device 31.
  • the priority information is information regarding the charging device 22 to which power is preferentially distributed.
  • the priority information may be set for the charging station 21 or may be set for the charging device 22. That is, the priority information may be information that preferentially distributes electric power to the plurality of charging devices 22 forming the charging station 21, or among the plurality of charging devices 22 forming the charging station 21.
  • the information may be such that power is preferentially distributed only to the specific charging device 22.
  • the priority information may be information designating one or a plurality of charging devices 22 to which power is preferentially distributed among the plurality of charging devices 22, or information designating a priority order among the plurality of charging devices 22. May be For example, if the priority information is information that specifies that one charging station 21 be preferentially distributed with electric power, one charging station 21 specified by the priority information has priority over the remaining two charging stations 21. Power is distributed. When the priority information is information specifying the priority order of the three charging stations 21, the power distribution to the charging station 21 having the highest priority is given the highest priority, and the power supply to the charging station 21 having the second highest priority is performed. Is prioritized second.
  • the administrator of the charging facility 20 can appropriately set which charging device 22 is to be preferentially charged.
  • an example of how to set which charging device 22 to preferentially distribute the power by the priority information will be described.
  • the type of the electric vehicle 50 may be designated for each charging station 21, and the priority information may be set according to the designated type of the electric vehicle 50.
  • the charging station 21 for the electric vehicle is preferentially distributed with electric power. May be. While the plug-in hybrid vehicle can run on the engine, the travelable distance of the electric vehicle depends only on the remaining capacity of the secondary battery 51. Therefore, the secondary battery 51 of the electric vehicle is preferentially charged.
  • a charging mode may be specified for each charging station 21, and priority information may be set according to the specified charging mode. For example, if one of the plurality of charging stations 21 is for normal charging and the other two are for rapid charging, even if power is preferentially distributed to the charging station 21 for rapid charging. Good. Since rapid charging uses a larger amount of power than normal charging, the charging station 21 for rapid charging is preferentially charged.
  • the priority information can be set so that the power is preferentially distributed to any charging station 21.
  • the priority information is set for each charging station 21 has been described, but the priority information can be set for each charging device 22 in the same manner.
  • the charging control device 31 includes a communication unit 34, a priority information acquisition unit 35, a chargeable power acquisition unit 36, a charging information acquisition unit 37, and a calculation unit 38.
  • the communication unit 34 is a member for transmitting and receiving information to and from the second communication unit 26 of the charging device 22.
  • the priority information acquisition unit 35, the chargeable power acquisition unit 36, the charge information acquisition unit 37, and the calculation unit 38 are functional units that function when the CPU of the charging control device 31 performs predetermined processing.
  • the priority information acquisition unit 35 acquires priority information from the upper control device 40.
  • the chargeable power acquisition unit 36 acquires chargeable power from the host controller 40.
  • the charging information acquisition unit 37 acquires charging information from the charging device 22.
  • the calculator 38 calculates the charging power.
  • the charging control device 31 includes a CPU and a storage unit including a RAM and a ROM.
  • the storage unit stores various programs for the functional unit to perform a predetermined process.
  • the communication unit 34, the priority information acquisition unit 35, the chargeable power acquisition unit 36, the charging information acquisition unit 37, and the calculation unit 38 are not limited to those that perform software processing for all the processing executed by themselves. These functional units may be provided with dedicated hardware for executing at least a part of various processes, for example, an application-specific integrated circuit: ASIC.
  • circuits including (a) one or more processors operating according to a computer program (software), (b) one or more dedicated hardware circuits such as ASIC, or (c) a combination thereof.
  • the processor includes a CPU and memories such as RAM and ROM.
  • the memory stores program codes or instructions configured to cause the CPU to perform processing.
  • Memory, or non-transitory computer readable storage media includes anything that can be accessed by a general purpose or special purpose computer.
  • first charging device 22A one of the two charging devices 22 of the charging station 21 will be appropriately referred to as a first charging device 22A, and the other will be referred to as a second charging device 22B.
  • An electric vehicle 50 (for example, a first electric vehicle 50A) is connected to the first charging device 22A, and an electric vehicle 50 (first electric vehicle 50A) is charged to the second charging device 22B by the first charging device 22A. After starting, another electric vehicle 50 (second electric vehicle 50B) is connected.
  • step S ⁇ b>1 the host controller 40 transmits the chargeable power and the priority information to the charge controller 31. Although illustration is omitted, the higher-level control device 40 transmits the chargeable power and the priority information at every predetermined cycle.
  • step S2 the first charging device 22A transmits charging information to the charging control device 31. Although illustration is omitted, the first charging device 22A transmits charging information to the charging control device 31 at every predetermined cycle.
  • step S2 since electric vehicle 50 is not connected to second charging device 22B, charging information is not transmitted from second charging device 22B.
  • the information indicating that the electric vehicle 50 is not connected to the second charging device 22B is transmitted from the second charging device 22B.
  • step S3 the charging control device 31 acquires chargeable power, priority information, and charging information of its own charging station 21.
  • the charging control device 31 functions as the priority information acquisition unit 35, the chargeable power acquisition unit 36, and the charging information acquisition unit 37 by performing the process of step S3.
  • step S4 the charging control device 31 acquires charging information from another charging station 21 via the network.
  • the charging control device 31 collects the charging information of the charging device 22 in its own charging station 21 (the charging station 21 to which the charging control device 31 itself belongs) and the charging information of the charging device 22 in another charging station 21. Will get it.
  • step S5 the charging control device 31 calculates charging power.
  • the charging control device 31 functions as the calculation unit 38 by performing the process of step S5.
  • the charging control device 31 calculates the required power in its own charging station 21.
  • the required power can be calculated from the charging information.
  • the required power can be calculated at least if the connection state of the electric vehicle 50 to the charging station 21 can be detected.
  • the required power when one electric vehicle 50 is connected to the charging station 21 may be set in advance, and the required power may be calculated according to the number of charging devices 22 to which the electric vehicle 50 is connected. Therefore, the charging information only needs to include at least the connection state information.
  • the charging information includes the charging rate of the secondary battery 51, the lower the charging rate of the secondary battery 51, the larger the required power may be.
  • the required charging rate is a charging rate required to drive the electric vehicle 50, and the required charging rate is instructed by the host controller 40 or an input unit provided in the charging device 22.
  • the higher-level control device 40 may instruct the charging control device 31 of the required charging rate calculated from the cargo handling schedule or the like.
  • the required charging rate may be calculated from the planned traveling distance by the passenger inputting the planned traveling distance using the input unit.
  • the charging control device 31 calculates the required power of other charging stations 21 by the same process as the process of calculating the required power of the charging station 21 to which it belongs.
  • the charging control device 31 adds the required power of its own charging station 21 and the required power of the other charging stations 21, and obtains the required power of the entire charging facility 20.
  • the charging control device 31 obtains the ratio of the required power of its own charging station 21 to the required power of the entire charging facility 20.
  • the charge control device 31 calculates the basic charge power based on the calculated ratio and the chargeable power. For example, the basic charging power is calculated by multiplying the calculated ratio by the chargeable power.
  • the basic charging power may be a value calculated in consideration of a margin and a coefficient.
  • the basic charging power is the power distributed to each charging station 21 when priority information is not added.
  • the charging control device 31 calculates the charging power, which is the power distributed to the charging station 21, from the basic charging power based on the priority information.
  • the charging control device 31 may calculate the charging power by multiplying the basic charging power by a coefficient. For example, when the priority information specifies that the power is preferentially distributed to one charging station 21, the charging control device 31 sets the coefficient of the charging station 21 to 1.2, and the other two.
  • the coefficient of one charging station 21 may be 0.9.
  • the coefficients may be set to 1.1, 1.0 and 0.9 in order from the charging station 21 having the highest priority order.
  • the charging power may be calculated by adding or subtracting a fixed value according to the priority information to the basic charging power.
  • the charging control device 31 only needs to preferentially distribute the power to the charging station 21 having a high priority based on the priority information, and the method of calculating the charging power is arbitrary.
  • priority information is set for the charging device 22
  • a coefficient or a fixed value is set depending on the number of charging devices 22 to which power is preferentially distributed or the number of charging devices 22 with high priority. Good.
  • the charging control device 31 calculates a charging power instruction value.
  • the charging power instruction value is calculated based on the charging power and the charging information. Further, when some of the plurality of charging devices 22 of the charging station 21 are designated as the charging devices 22 in which the power is preferentially distributed, the charging power instruction value is calculated in consideration of the priority information. .. In this case, as in the case of the above-described preferential power distribution to the charging station 21, the charging power instruction value may be multiplied by a coefficient or the charging power instruction value may be adjusted by a fixed value according to the priority information.
  • step S7 the charging control device 31 transmits the charging power instruction value to the first charging device 22A.
  • step S8 the first charging device 22A charges the secondary battery 51 according to the charging power instruction value.
  • the charging control device 31 calculates charging power for each preset time T1.
  • the set time T1 is set based on the followability of the charging device 22 and the secondary battery 51 with respect to the charging power instruction value. It takes time for the power actually supplied to the secondary battery 51 to follow the charging power instruction value after the charging control device 31 outputs the charging power instruction value to the charging device 22.
  • the set time T1 is set to be longer than the time required for the electric power actually supplied to the secondary battery 51 to follow the charging power instruction value.
  • the second charging device 22B After the calculation of the charging power in step S5 and before the step S51 in which the charging power is calculated next, the second charging device 22B detects the connection of the electric vehicle 50 to the second charging device 22B in step S9.
  • the charging information is transmitted from the second charging device 22B to the charging control device 31.
  • the charging control device 31 recognizes that the electric vehicle 50 is connected to the second charging device 22B by acquiring the charging information from the second charging device 22B.
  • the charging control device 31 When the electric vehicle 50 is connected to the second charging device 22B, the charging control device 31 does not transmit the charging power instruction value to the charging device 22 until the charging power is calculated in step S51. That is, the charging control device 31 does not calculate the charging power triggered by the connection of the electric vehicle 50 to the charging device 22, but calculates the charging power only when the set time T1 elapses.
  • the second charging device 22B stands by without charging from the detection of the connection with the electric vehicle 50 to the next calculation of the charging power by the charging control device 31 (S51).
  • the charging control device 31 calculates the charging power in step S51. Then, in step S61, the charging control device 31 calculates the charging power instruction value for the two charging devices 22. In step S71, the charging control device 31 transmits the charging power instruction value to the two charging devices 22. As a result, in steps S81 and S82, the secondary battery 51 of each electric vehicle 50 connected to the two charging devices 22 is charged.
  • the charging control device 31 of each charging station 21 can acquire the charging information of another charging station 21 via the network. Thereby, each charging control device 31 can calculate the charging power based on the priority information, the charging information of the charging station 21 of itself, and the charging information of the other charging stations 21. Therefore, the charging control device 31 calculates the charging power in consideration of the charging information of the other charging stations 21 in addition to the charging station 21 of itself, so that the charging power to be distributed to each charging station 21 is appropriately calculated. Can be set. If the charging power is set according to the tendency of the power demand of the charging station 21, the charging power is set without considering the charging information. Therefore, the charging power is set without considering the state of the secondary battery 51.
  • the charging power is calculated according to the charging information of the charging station 21 as in the present embodiment, the number of electric vehicles 50 connected to the charging station 21, the charging rate of the secondary battery 51, and the like.
  • the charging power is calculated in consideration of the above.
  • the power can be preferentially distributed to the specific charging device 22. Since the administrator of the charging facility 20 can set the priority information as appropriate, the charging power can be finely set.
  • the upper control device 40 calculates the charging power and instructs each charging control device 31 on the charging power.
  • the higher-level control device 40 collectively calculates the charging power of each charging station 21.
  • the load of 40 is large. Also, it may take time for the charging power calculated based on the charging information to be reflected due to the communication delay between the host controller 40 and the charging controller 31.
  • the charging control device 31 may calculate the charging power of its own charging station 21.
  • each charging control device 31 calculates the charging power, it is possible to suppress the occurrence of communication delay.
  • the charging device 22 when adding the charging device 22 to the charging station 21, it is necessary to connect the charging device 22 and the charging control device 31 to each other by the wiring 28. If the charging control device 31 is shared by the charging stations 21 and only one charging control device 31 is provided in the charging facility 20, the wiring 28 tends to be long. In addition, the number of charging devices 22 connected to one charging control device 31 increases, and communication specifications become complicated. On the other hand, when the charging control device 31 is provided for each charging station 21 as in the present embodiment, the charging device 22 that is the connection target of the charging control device 31 is closest to the charging control device 31. The wiring 28 can be connected to the control device 31. Therefore, the length of the wiring 28 can be shortened. Further, since the charging devices 22 can be connected to the plurality of charging control devices 31 in a distributed manner, complication of communication specifications hardly occurs.
  • the charging control device 31 In addition to the charging station 21 to which the charging control device 31 belongs, the charging control device 31 also calculates charging power by considering charging information of other charging stations 21. Therefore, it is possible to set an appropriate charging power according to the charging information. Moreover, by calculating the charging power based on the priority information, it becomes possible to preferentially distribute the power to the specific charging device 22.
  • the charging device 22 detects the connection of the electric vehicle 50 with the charging device 22 after the calculation of the charging power and before the calculation of the charging power is performed next, the charging power is calculated next. After that, the secondary battery 51 is charged.
  • the control performed by the charging control device 31 can be simplified as compared with the case where the charging power is calculated when the electric vehicle 50 is connected to the charging device 22.
  • the embodiment can be modified and implemented as follows. The embodiment and the following modifications can be implemented in combination with each other within a technically consistent range.
  • the charging control device 31 may calculate the charging power when the electric vehicle 50 is connected to the charging device 22. In this case, the time from when the electric vehicle 50 is connected to the charging device 22 to when the charging is started becomes short.
  • the charging control device 31 may cause the charging device 22 to charge when the electric vehicle 50 is connected to the charging device 22. For example, if there is a surplus in charging power, the charging control device 31 may charge the secondary battery 51 of the electric vehicle 50 connected to the charging device 22 with the surplus power.
  • the charging control device 31 of each charging station 21 may construct a network by wireless devices.
  • the network constructed by each charging control device 31 may be a bus type local area network or a ring type local area network. In these cases, the hub 32 for connecting the plurality of charge control devices 31 to each other may not be used.

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  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract

The present invention provides charging equipment that appropriately sets charging power distributed to each of a plurality of charging stations. Charging control devices (31) of a plurality of charging stations (21) can acquire each other's information by constructing networks (32, 33). In each charging control device (31) of the plurality of charging stations (21), a charging information acquisition unit (37) acquires from a charging device (22) charging information which is information relating to charging of a secondary battery (51) (S3). From priority information, charging information acquired by the charging information acquisition unit, and charging information acquired from another charging station via a network (S4), a calculating unit (38) calculates the charging power of the rechargeable power that is allocated to the charging station of the calculation unit itself (S5).

Description

充電設備、及び充電設備の制御方法Charging facility and method for controlling charging facility
 本開示は、充電設備、及び充電設備の制御方法に関する。 The present disclosure relates to a charging facility and a method for controlling the charging facility.
 系統電源から供給される電力を、複数の充電ステーションに分配する充電システムとしては、例えば、特許文献1に記載されている。上記文献に記載の充電システムは、電動車両の電力源である二次電池を充電する複数の充電ステーションと、複数の充電ステーションに分配される電力を設定する上位制御装置と、を備える。上位制御装置は、充電ステーションの電力需要の傾向から、分配する電力を設定する。充電ステーションは、分配された電力に基づき、電動車両の二次電池の充電を行う。 As a charging system that distributes the power supplied from the system power supply to a plurality of charging stations, for example, it is described in Patent Document 1. The charging system described in the above document includes a plurality of charging stations that charge a secondary battery that is a power source of an electric vehicle, and a host controller that sets the power distributed to the plurality of charging stations. The host controller sets the power to be distributed based on the power demand trend of the charging station. The charging station charges the secondary battery of the electric vehicle based on the distributed electric power.
特開2015-50853号公報JP, 2005-50853, A
 上記文献では、各充電ステーションに分配される電力は、電力需要に依存している。従って、二次電池の状態などに合わせて、適切な電力が設定されているとはいえない。
 本開示の目的は、複数の充電ステーションのそれぞれに分配される充電電力を、適切に設定することができる充電設備を提供することにある。
In the above document, the electric power distributed to each charging station depends on the electric power demand. Therefore, it cannot be said that appropriate power is set according to the state of the secondary battery.
An object of the present disclosure is to provide a charging facility that can appropriately set charging power distributed to each of a plurality of charging stations.
 本開示の一態様に係る充電設備は、複数の充電ステーションを備えた充電設備であって、前記複数の充電ステーションのそれぞれは、系統電源から供給される電力によって、電動車両の二次電池を充電するように構成される複数の充電装置と、前記充電装置及び上位制御装置と通信可能であるように設けられた充電制御装置と、を備え、前記複数の充電ステーションの前記充電制御装置は、ネットワークを構築することで互いの情報を取得可能であり、前記複数の充電ステーションの前記充電制御装置のそれぞれは、前記二次電池の充電に関する情報である充電情報を、前記充電装置から取得するように構成される充電情報取得部と、前記充電装置のいずれに優先的に電力を分配するかを示す情報である優先情報を、前記上位制御装置から取得するように構成される優先情報取得部と、前記充電設備で使用することが可能な電力である充電可能電力を、前記上位制御装置から取得するように構成される充電可能電力取得部と、前記優先情報と、前記充電情報取得部により取得した前記充電情報と、及び前記ネットワークを介して他の充電ステーションから取得した前記充電情報とから、前記充電可能電力のうち自身の充電ステーションに割り当てられる充電電力を算出するように構成される算出部と、を備える。 A charging facility according to an aspect of the present disclosure is a charging facility including a plurality of charging stations, and each of the plurality of charging stations charges a secondary battery of an electric vehicle with electric power supplied from a system power supply. A plurality of charging devices configured to perform, and a charging control device that is provided so as to be able to communicate with the charging device and the host control device, wherein the charging control devices of the plurality of charging stations are a network. It is possible to acquire information of each other by constructing, each of the charging control device of the plurality of charging stations, the charging information is information about the charging of the secondary battery, so as to obtain from the charging device. A charging information acquisition unit configured, priority information, which is information indicating which of the charging devices is preferentially distributed with power, a priority information acquisition unit configured to acquire from the higher-order control device, The chargeable power that is power that can be used in the charging facility is acquired by the chargeable power acquisition unit configured to acquire from the higher-level control device, the priority information, and the charging information acquisition unit. A calculation unit configured to calculate, from the charging information and the charging information acquired from another charging station via the network, charging power allocated to the charging station of the rechargeable power. , Is provided.
 各充電ステーションの充電制御装置は、ネットワークを介して、他の充電ステーションの充電情報を取得可能である。各充電制御装置は、優先情報と、自身の充電ステーションの充電情報と、及び他の充電ステーションの充電情報とに基づき、充電電力を算出する。自身の充電ステーションに加えて、他の充電ステーションの充電情報も加味して、充電電力が算出される。このため、充電情報に合わせた適切な充電電力を設定することができる。また、優先情報に基づき充電電力が算出されることで、特定の充電装置に優先的に電力を分配することが可能になる。 The charging control device of each charging station can acquire the charging information of other charging stations via the network. Each charging control device calculates charging power based on priority information, charging information of its own charging station, and charging information of another charging station. In addition to its own charging station, charging power is calculated by taking into account charging information of other charging stations. Therefore, it is possible to set an appropriate charging power according to the charging information. Further, since the charging power is calculated based on the priority information, the power can be preferentially distributed to the specific charging device.
 上記充電設備について、前記算出部は、予め設定された設定時間毎に前記充電電力を算出するように構成され、前記充電装置は、前記充電電力の算出後、次に前記充電電力の算出が行われる前に、前記充電装置との前記電動車両の接続を検出した場合、次に前記充電電力の算出が行われてから前記二次電池の充電を行うように構成されてもよい。 Regarding the charging facility, the calculation unit is configured to calculate the charging power at each preset time, and the charging device calculates the charging power and then calculates the charging power. If the connection of the electric vehicle to the charging device is detected before the operation, the secondary battery may be charged after the calculation of the charging power is performed next.
 例えば電動車両の接続を検出した時点で、充電電力の算出を行う場合に比べて、上記構成によれば、充電制御装置が行う制御を簡略化できる。
 また、上記各種の処理を備える充電設備の制御方法が提供されうるとともに、上記各種の処理をプロセッサに実行させるためのプログラム、及び当該プログラムを記憶した非一時的なコンピュータ可読記憶媒体が提供されうる。
For example, according to the above configuration, the control performed by the charging control device can be simplified as compared with the case where the charging power is calculated when the connection of the electric vehicle is detected.
Further, a method for controlling a charging facility including the above various processes may be provided, and a program for causing a processor to execute the various processes and a non-transitory computer-readable storage medium storing the program may be provided. ..
 本開示によれば、複数の充電ステーションのそれぞれに分配される充電電力を、適切に設定することができる。 According to the present disclosure, charging power distributed to each of a plurality of charging stations can be appropriately set.
充電システムの概略構成図。The schematic block diagram of a charging system. 図の充電システムにおいて、充電設備を模式的に示すブロック図。The block diagram which shows typically the charging equipment in the charging system of a figure. 図の充電システムにおいて、上位制御装置、充電制御装置、及び充電装置の相互作用図。In the charging system of the figure, the interaction diagram of a host controller, a charge controller, and a charger.
 以下、充電設備の一実施形態について説明する。
 図1に示すように、充電システム10は、充電設備20と、上位制御装置40と、を備える。充電設備20は、電力会社等の電力供給者から電力を供給される、需要家に設けられている。需要家としては、例えば、工場、公共施設、商用施設が挙げられる。需要家には、充電設備20以外の負荷11が設けられている。系統電源12を通じて電力供給者から供給される電力は、充電設備20と、充電設備20以外の負荷11とで共有される。充電システム10は、充電設備20及び負荷11で使用される電力が設定値を上回らないように、制御を行うシステムである。
Hereinafter, an embodiment of the charging facility will be described.
As shown in FIG. 1, the charging system 10 includes a charging facility 20 and a host controller 40. The charging facility 20 is provided in a customer who is supplied with power from a power supplier such as a power company. Examples of consumers include factories, public facilities, and commercial facilities. The customer is provided with a load 11 other than the charging facility 20. The electric power supplied from the electric power supplier through the system power supply 12 is shared by the charging facility 20 and the load 11 other than the charging facility 20. The charging system 10 is a system that performs control so that the electric power used by the charging facility 20 and the load 11 does not exceed a set value.
 充電設備20は、複数の充電ステーション21を備える。本実施形態では、3つの充電ステーション21を例示して説明を行うが、充電ステーション21の数は適宜変更してもよい。 The charging facility 20 includes a plurality of charging stations 21. In the present embodiment, three charging stations 21 will be described as an example, but the number of charging stations 21 may be changed as appropriate.
 図1及び図2に示すように、充電ステーション21は、電動車両50に搭載された二次電池51を充電するための設備である。電動車両50は、二次電池51と、電池制御部52と、通信部53と、を備える。電動車両50とは、充電可能な二次電池51を電力源として走行する車両である。二次電池51は、リチウムイオン二次電池、ニッケル水素二次電池等、どのような種類の二次電池を用いてもよい。電動車両50としては、電気自動車やプラグインハイブリッド自動車等の乗用車、フォークリフトなどの産業車両等、どのような種類のものであってもよい。電池制御部52は、二次電池51の充電率であるSOC:State Of Chargeの推定や、二次電池51の電圧や温度等の二次電池51の状態の監視を行う。通信部53は、二次電池51の充電率等の、二次電池51に関する情報を充電ステーション21に送信する。 As shown in FIGS. 1 and 2, the charging station 21 is a facility for charging the secondary battery 51 mounted on the electric vehicle 50. The electric vehicle 50 includes a secondary battery 51, a battery control unit 52, and a communication unit 53. The electric vehicle 50 is a vehicle that runs using a rechargeable secondary battery 51 as a power source. As the secondary battery 51, any type of secondary battery such as a lithium ion secondary battery or a nickel hydrogen secondary battery may be used. The electric vehicle 50 may be of any type such as a passenger vehicle such as an electric vehicle or a plug-in hybrid vehicle, an industrial vehicle such as a forklift, or the like. The battery control unit 52 estimates SOC: State of Charge, which is the charging rate of the secondary battery 51, and monitors the state of the secondary battery 51 such as the voltage and temperature of the secondary battery 51. The communication unit 53 transmits information about the secondary battery 51, such as the charging rate of the secondary battery 51, to the charging station 21.
 各充電ステーション21は、複数の充電装置22と、充電制御装置31と、を備える。本実施形態では、2つの充電装置22を図示しているが、充電装置22の数は適宜変更してもよい。充電ステーション21とは、充電制御装置31と、この充電制御装置31に配線28によって接続された複数の充電装置22とで構成されたユニットである。複数の充電ステーション21とは、地理的に分離された2つ以上の区画に設けられた2つ以上の充電ステーション21であってもよいし、地理的に同一区画内に設けられた2つ以上の充電ステーション21であってもよい。説明の便宜上、各充電ステーション21を同一構成として説明するが、充電装置22の出力可能な最大充電電力等の充電装置22の仕様は、充電ステーション21毎に異なっていてもよい。 Each charging station 21 includes a plurality of charging devices 22 and a charging control device 31. Although the two charging devices 22 are illustrated in the present embodiment, the number of the charging devices 22 may be appropriately changed. The charging station 21 is a unit including a charging control device 31 and a plurality of charging devices 22 connected to the charging control device 31 by wiring 28. The plurality of charging stations 21 may be two or more charging stations 21 provided in two or more geographically separated sections, or two or more charging stations 21 provided in the same geographical area. The charging station 21 of FIG. For convenience of description, the charging stations 21 are described as having the same configuration, but the specifications of the charging device 22 such as the maximum charging power that the charging device 22 can output may be different for each charging station 21.
 図2に示すように、充電装置22は、系統電源12から供給される交流電力を直流電力に変換する変換部23と、電動車両50に接続される充電プラグ24と、第1通信部25と、第2通信部26と、制御部27と、を備える。第1通信部25は、電動車両50の通信部53との情報の送受信を行うための部材である。第2通信部26は、充電制御装置31との情報の送受信を行うための部材である。制御部27は、充電装置22の制御を行う。制御部27は、充電プラグ24が電動車両50に接続されたことを検出可能である。充電プラグ24が電動車両50に接続されると、変換部23と二次電池51とが相互に接続され、第1通信部25と通信部53とが相互に接続される。第1通信部25と通信部53とが相互に接続されることで、制御部27は、二次電池51の充電率等の、二次電池51に関する情報を取得可能である。制御部27は、第2通信部26を通じて充電制御装置31から指示される充電電力指示値に従い、変換部23を制御する。変換部23から出力される直流電力によって、二次電池51は充電される。 As shown in FIG. 2, the charging device 22 includes a converter 23 that converts AC power supplied from the system power supply 12 into DC power, a charging plug 24 connected to the electric vehicle 50, and a first communication unit 25. The second communication unit 26 and the control unit 27 are included. The first communication unit 25 is a member for transmitting and receiving information to and from the communication unit 53 of the electric vehicle 50. The second communication unit 26 is a member for transmitting and receiving information to and from the charging control device 31. The control unit 27 controls the charging device 22. The control unit 27 can detect that the charging plug 24 is connected to the electric vehicle 50. When the charging plug 24 is connected to the electric vehicle 50, the conversion unit 23 and the secondary battery 51 are connected to each other, and the first communication unit 25 and the communication unit 53 are connected to each other. Since the first communication unit 25 and the communication unit 53 are connected to each other, the control unit 27 can acquire information about the secondary battery 51, such as the charging rate of the secondary battery 51. The control unit 27 controls the conversion unit 23 according to the charging power instruction value instructed from the charging control device 31 through the second communication unit 26. The secondary battery 51 is charged by the DC power output from the conversion unit 23.
 第2通信部26から充電制御装置31には、充電情報が送信される。充電情報とは、二次電池51の充電に関する情報、詳細にいえば、充電設備20で二次電池51の充電を行うために必要な情報である。充電情報は、充電装置22の情報、二次電池51の情報、及び電動車両50の情報の少なくとも1つを含む。例えば、充電情報には、接続状態情報、識別情報、充電装置22の仕様、及び二次電池51に関する情報が含まれる。接続状態情報とは、充電プラグ24が電動車両50に接続されているか、充電装置22による二次電池51の充電が行われているか、充電装置22による二次電池51の充電が完了したか等の、充電装置22の充電状態を示す情報である。識別情報とは、充電装置22毎に個別に設定された、固有のIDを示す情報である。充電装置22の仕様とは、充電装置22の出力可能な最大充電電力等を示す情報である。 Charging information is transmitted from the second communication unit 26 to the charging control device 31. The charging information is information about charging of the secondary battery 51, specifically, information necessary for charging the secondary battery 51 in the charging facility 20. The charging information includes at least one of information about the charging device 22, information about the secondary battery 51, and information about the electric vehicle 50. For example, the charging information includes connection state information, identification information, specifications of the charging device 22, and information about the secondary battery 51. The connection status information includes whether the charging plug 24 is connected to the electric vehicle 50, whether the charging device 22 is charging the secondary battery 51, whether the charging device 22 has charged the secondary battery 51, and the like. Is information indicating the state of charge of the charging device 22. The identification information is information indicating a unique ID that is individually set for each charging device 22. The specifications of the charging device 22 are information indicating the maximum charging power that the charging device 22 can output and the like.
 図1及び図2に示すように、各充電ステーション21の充電制御装置31は、相互に通信可能に接続されている。詳細にいえば、充電設備20はハブ32と配線33とを備えており、配線33は、ハブ32と各充電制御装置31とを相互に接続する。ハブ32を介して、各充電制御装置31同士は相互に接続されている。これにより、各充電制御装置31によってネットワークが構築されている。本実施形態では、複数の充電ステーション21の各充電制御装置31が、ハブ32によって相互に接続されることで、スター型のローカルエリアネットワークが構築されている。ハブ32は、上位制御装置40と通信可能な状態で接続されている。各充電制御装置31は、ハブ32を介して、上位制御装置40と通信可能である。各充電制御装置31は、充電情報を上位制御装置40に送信する。 As shown in FIGS. 1 and 2, the charging control device 31 of each charging station 21 is connected to be able to communicate with each other. More specifically, the charging facility 20 includes a hub 32 and a wiring 33, and the wiring 33 connects the hub 32 and each charging control device 31 to each other. The charge control devices 31 are connected to each other via the hub 32. As a result, a network is constructed by each charging control device 31. In the present embodiment, the charging control devices 31 of the plurality of charging stations 21 are mutually connected by the hub 32, so that a star-type local area network is constructed. The hub 32 is connected to the host controller 40 in a communicable state. Each charging control device 31 can communicate with the host control device 40 via the hub 32. Each charging control device 31 transmits charging information to the host control device 40.
 上位制御装置40は、サーバーである。上位制御装置40は、需要家に設けられていてもよいし、需要家とは異なる場所に設けられていてもよい。上位制御装置40は、情報管理部41と、電力管理部42と、を備える。情報管理部41及び電力管理部42は、上位制御装置40のCPUが所定の処理を行うことにより機能する、機能部である。 The upper control device 40 is a server. The host controller 40 may be provided in a customer or may be provided in a place different from the customer. The upper control device 40 includes an information management unit 41 and a power management unit 42. The information management unit 41 and the power management unit 42 are functional units that function when the CPU of the host controller 40 performs predetermined processing.
 情報管理部41は、充電制御装置31から取得した充電情報の蓄積や、解析を行う。即ち、情報管理部41は、充電情報をデータベース化している。
 電力管理部42は、充電可能電力を算出する。充電可能電力とは、系統電源12から供給される電力のうち、充電設備20で利用可能な電力、即ち、二次電池51の充電に用いることができる電力である。充電可能電力は、充電設備20以外の負荷11で使用されている電力と、設定値とに基づき、算出される電力である。負荷11で使用されている電力に充電可能電力を加えても設定値を上回らないように、充電可能電力は算出される。すなわち、需要家全体で使用されている電力が設定値を上回らないように、充電可能電力は算出されるといえる。設定値としては、例えば、電力供給者との契約で定められた電力である契約電力や、契約電力よりも低い値が挙げられる。
The information management unit 41 stores and analyzes the charging information acquired from the charging control device 31. That is, the information management unit 41 is a database of charging information.
The power management unit 42 calculates chargeable power. The rechargeable power is, of the power supplied from the system power supply 12, power that can be used in the charging facility 20, that is, power that can be used to charge the secondary battery 51. The chargeable power is power that is calculated based on the power used by the load 11 other than the charging facility 20 and the set value. The chargeable power is calculated so that the set value is not exceeded even if the chargeable power is added to the power used by the load 11. That is, it can be said that the rechargeable power is calculated so that the power used by all the consumers does not exceed the set value. As the set value, for example, contract electric power that is electric power determined by a contract with an electric power supplier, or a value lower than the contract electric power can be mentioned.
 電力管理部42は、充電可能電力と優先情報とを、各充電制御装置31に送信する。優先情報とは、優先的に電力が分配される充電装置22に関する情報である。優先情報は、充電ステーション21を対象として設定されたものであってもよいし、充電装置22を対象として設定されたものであってもよい。即ち、優先情報は、充電ステーション21を構成する複数の充電装置22に、優先的に電力を分配させるような情報であってもよいし、充電ステーション21を構成する複数の充電装置22のうち、特定の充電装置22のみに優先的に電力を分配させるような情報であってもよい。 The power management unit 42 transmits chargeable power and priority information to each charging control device 31. The priority information is information regarding the charging device 22 to which power is preferentially distributed. The priority information may be set for the charging station 21 or may be set for the charging device 22. That is, the priority information may be information that preferentially distributes electric power to the plurality of charging devices 22 forming the charging station 21, or among the plurality of charging devices 22 forming the charging station 21. The information may be such that power is preferentially distributed only to the specific charging device 22.
 優先情報は、複数の充電装置22のうち、優先的に電力を分配させる1又は複数の充電装置22を指定する情報であってもよいし、複数の充電装置22間の優先順位を指定するものであってもよい。例えば、優先情報が、1つの充電ステーション21に優先的に電力を分配させるように指定する情報の場合、優先情報で指定された1つの充電ステーション21には、残り2つの充電ステーション21よりも優先的に、電力が分配される。優先情報が、3つの充電ステーション21の優先順位を指定する情報の場合、優先順位が最も高い充電ステーション21への電力の分配が最も優先され、優先順位が2番目に高い充電ステーション21への電力の分配が、2番目に優先される。 The priority information may be information designating one or a plurality of charging devices 22 to which power is preferentially distributed among the plurality of charging devices 22, or information designating a priority order among the plurality of charging devices 22. May be For example, if the priority information is information that specifies that one charging station 21 be preferentially distributed with electric power, one charging station 21 specified by the priority information has priority over the remaining two charging stations 21. Power is distributed. When the priority information is information specifying the priority order of the three charging stations 21, the power distribution to the charging station 21 having the highest priority is given the highest priority, and the power supply to the charging station 21 having the second highest priority is performed. Is prioritized second.
 優先情報によって、いずれの充電装置22に優先的に充電を行わせるかを、充電設備20の管理者が、適宜設定することができる。以下、優先情報によって、いずれの充電装置22に優先的に電力を分配させるかを、どのような態様で設定するかの一例について説明する。 By the priority information, the administrator of the charging facility 20 can appropriately set which charging device 22 is to be preferentially charged. Hereinafter, an example of how to set which charging device 22 to preferentially distribute the power by the priority information will be described.
 充電ステーション21毎に、電動車両50の種類を指定し、指定された電動車両50の種類に合わせて優先情報を設定してもよい。例えば、複数の充電ステーション21のうちの1つをプラグインハイブリッド自動車用とするとともに、残りの2つを電気自動車用とした場合、電気自動車用の充電ステーション21に、優先的に電力を分配してもよい。プラグインハイブリッド自動車はエンジンでの走行も可能である一方で、電気自動車の走行可能距離は二次電池51の残容量のみに依存している。このため、電気自動車の二次電池51を優先的に充電させる。 The type of the electric vehicle 50 may be designated for each charging station 21, and the priority information may be set according to the designated type of the electric vehicle 50. For example, when one of the plurality of charging stations 21 is for a plug-in hybrid vehicle and the other two are for an electric vehicle, the charging station 21 for the electric vehicle is preferentially distributed with electric power. May be. While the plug-in hybrid vehicle can run on the engine, the travelable distance of the electric vehicle depends only on the remaining capacity of the secondary battery 51. Therefore, the secondary battery 51 of the electric vehicle is preferentially charged.
 充電ステーション21毎に、充電態様を指定し、指定された充電態様に合わせて優先情報を設定してもよい。例えば、複数の充電ステーション21のうちの1つを普通充電用とするとともに、残りの2つを急速充電用とした場合、急速充電用の充電ステーション21に、優先的に電力を分配してもよい。急速充電は、普通充電に比べて使用する電力が大きいため、急速充電用の充電ステーション21に優先的に充電を行わせる。 A charging mode may be specified for each charging station 21, and priority information may be set according to the specified charging mode. For example, if one of the plurality of charging stations 21 is for normal charging and the other two are for rapid charging, even if power is preferentially distributed to the charging station 21 for rapid charging. Good. Since rapid charging uses a larger amount of power than normal charging, the charging station 21 for rapid charging is preferentially charged.
 上記したように、任意の充電ステーション21に優先的に電力を分配させるように、優先情報は設定されることができる。上記した例では、充電ステーション21毎に優先情報を定める場合について説明したが、同様の態様で、充電装置22毎に優先情報を定めることもできる。 As described above, the priority information can be set so that the power is preferentially distributed to any charging station 21. In the above example, the case where the priority information is set for each charging station 21 has been described, but the priority information can be set for each charging device 22 in the same manner.
 上記のように構成された充電システム10では、充電設備20及び負荷11で使用される電力が設定値を上回らないように、各充電装置22への電力の分配が行われる。充電可能電力のうち、各充電ステーション21に割り当てられる充電電力は、充電制御装置31によって算出される。充電制御装置31は、通信部34と、優先情報取得部35と、充電可能電力取得部36と、充電情報取得部37と、算出部38と、を備える。通信部34は、充電装置22の第2通信部26と情報を送受信するための部材である。優先情報取得部35、充電可能電力取得部36、充電情報取得部37及び算出部38は、充電制御装置31のCPUが所定の処理を行うことにより機能する、機能部である。優先情報取得部35は、上位制御装置40から優先情報を取得する。充電可能電力取得部36は、上位制御装置40から充電可能電力を取得する。充電情報取得部37は、充電装置22から充電情報を取得する。算出部38は、充電電力を算出する。ここで、具体的には充電制御装置31は、CPUと、RAM及びROM等からなる記憶部と、を備える。記憶部には、機能部が所定の処理を行うための種々のプログラムが記憶されている。通信部34、優先情報取得部35、充電可能電力取得部36、充電情報取得部37、及び算出部38は、自身が実行する全ての処理についてソフトウェア処理を行うものに限られない。これら機能部は、各種処理のうち少なくとも一部の処理を実行する専用のハードウェア、例えば、特定用途向け集積回路:ASICを備えていてもよい。これら機能部は、(a)コンピュータプログラム(ソフトウェア)に従って動作する1つ以上のプロセッサ、(b)ASIC等の1つ以上の専用のハードウェア回路、あるいは、(c)それらの組み合わせ、を含む回路として構成し得る。プロセッサは、CPU、並びに、RAM及びROM等のメモリを含む。メモリは、処理をCPUに実行させるように構成されたプログラムコードまたは指令を格納している。メモリ、即ち、非一時的なコンピュータ可読記憶媒体は、汎用または専用のコンピュータでアクセスできるあらゆるものを含む。 In the charging system 10 configured as described above, power is distributed to the charging devices 22 so that the power used by the charging equipment 20 and the load 11 does not exceed the set value. Of the chargeable power, the charge power assigned to each charging station 21 is calculated by the charge control device 31. The charging control device 31 includes a communication unit 34, a priority information acquisition unit 35, a chargeable power acquisition unit 36, a charging information acquisition unit 37, and a calculation unit 38. The communication unit 34 is a member for transmitting and receiving information to and from the second communication unit 26 of the charging device 22. The priority information acquisition unit 35, the chargeable power acquisition unit 36, the charge information acquisition unit 37, and the calculation unit 38 are functional units that function when the CPU of the charging control device 31 performs predetermined processing. The priority information acquisition unit 35 acquires priority information from the upper control device 40. The chargeable power acquisition unit 36 acquires chargeable power from the host controller 40. The charging information acquisition unit 37 acquires charging information from the charging device 22. The calculator 38 calculates the charging power. Here, specifically, the charging control device 31 includes a CPU and a storage unit including a RAM and a ROM. The storage unit stores various programs for the functional unit to perform a predetermined process. The communication unit 34, the priority information acquisition unit 35, the chargeable power acquisition unit 36, the charging information acquisition unit 37, and the calculation unit 38 are not limited to those that perform software processing for all the processing executed by themselves. These functional units may be provided with dedicated hardware for executing at least a part of various processes, for example, an application-specific integrated circuit: ASIC. These functional units are circuits including (a) one or more processors operating according to a computer program (software), (b) one or more dedicated hardware circuits such as ASIC, or (c) a combination thereof. Can be configured as. The processor includes a CPU and memories such as RAM and ROM. The memory stores program codes or instructions configured to cause the CPU to perform processing. Memory, or non-transitory computer readable storage media, includes anything that can be accessed by a general purpose or special purpose computer.
 以下、充電制御装置31が行う制御について、詳細に説明する。以下の説明において、適宜、充電ステーション21の2つの充電装置22のうちの一方を、第1充電装置22Aと表記し、他方を第2充電装置22Bと表記する。第1充電装置22Aには電動車両50(例えば第1電動車両50A)が接続されており、第2充電装置22Bには、第1充電装置22Aによる電動車両50(第1電動車両50A)の充電が開始された後に、別の電動車両50(第2電動車両50B)が接続される。 The control performed by the charging control device 31 will be described in detail below. In the following description, one of the two charging devices 22 of the charging station 21 will be appropriately referred to as a first charging device 22A, and the other will be referred to as a second charging device 22B. An electric vehicle 50 (for example, a first electric vehicle 50A) is connected to the first charging device 22A, and an electric vehicle 50 (first electric vehicle 50A) is charged to the second charging device 22B by the first charging device 22A. After starting, another electric vehicle 50 (second electric vehicle 50B) is connected.
 図3に示すように、ステップS1において、上位制御装置40は、充電可能電力及び優先情報を充電制御装置31に送信する。図示は省略するが、上位制御装置40は、所定の周期毎に、充電可能電力及び優先情報を送信する。同様に、ステップS2において、第1充電装置22Aは、充電情報を充電制御装置31に送信する。図示は省略するが、第1充電装置22Aは、所定の周期毎に、充電情報を充電制御装置31に送信する。ステップS2の時点では、第2充電装置22Bには電動車両50が接続されていないため、第2充電装置22Bからは充電情報が送信されない。あるいは、充電情報として、第2充電装置22Bには電動車両50が接続されていない旨の情報が、第2充電装置22Bから送信される。 As shown in FIG. 3, in step S<b>1, the host controller 40 transmits the chargeable power and the priority information to the charge controller 31. Although illustration is omitted, the higher-level control device 40 transmits the chargeable power and the priority information at every predetermined cycle. Similarly, in step S2, the first charging device 22A transmits charging information to the charging control device 31. Although illustration is omitted, the first charging device 22A transmits charging information to the charging control device 31 at every predetermined cycle. At the time of step S2, since electric vehicle 50 is not connected to second charging device 22B, charging information is not transmitted from second charging device 22B. Alternatively, as the charging information, the information indicating that the electric vehicle 50 is not connected to the second charging device 22B is transmitted from the second charging device 22B.
 ステップS3において、充電制御装置31は、充電可能電力と、優先情報と、及び自身の充電ステーション21の充電情報とを取得する。充電制御装置31は、ステップS3の処理を行うことで、優先情報取得部35、充電可能電力取得部36、及び充電情報取得部37として機能する。 In step S3, the charging control device 31 acquires chargeable power, priority information, and charging information of its own charging station 21. The charging control device 31 functions as the priority information acquisition unit 35, the chargeable power acquisition unit 36, and the charging information acquisition unit 37 by performing the process of step S3.
 次に、ステップS4において、充電制御装置31は、ネットワークを介して、他の充電ステーション21から充電情報を取得する。これにより、充電制御装置31は、自身の充電ステーション21(当該充電制御装置31自身が属する充電ステーション21)における充電装置22の充電情報と、他の充電ステーション21における充電装置22の充電情報とを取得することになる。 Next, in step S4, the charging control device 31 acquires charging information from another charging station 21 via the network. As a result, the charging control device 31 collects the charging information of the charging device 22 in its own charging station 21 (the charging station 21 to which the charging control device 31 itself belongs) and the charging information of the charging device 22 in another charging station 21. Will get it.
 次に、ステップS5において、充電制御装置31は、充電電力を算出する。充電制御装置31は、ステップS5の処理を行うことで、算出部38として機能する。まず、充電制御装置31は、自身の充電ステーション21での必要電力を算出する。必要電力は、充電情報から算出可能である。必要電力は、少なくとも電動車両50の充電ステーション21に対する接続状態を検出できれば算出可能である。例えば、1台の電動車両50が充電ステーション21に接続されている場合の必要電力を予め設定し、電動車両50が接続されている充電装置22の数に応じて必要電力を算出すればよい。従って、充電情報には、少なくとも接続状態情報が含まれていればよい。充電情報に二次電池51の充電率が含まれている場合、二次電池51の充電率が低いほど、必要電力を大きくしてもよい。充電制御装置31に、必要充電率が指示されている場合、必要充電率と、二次電池51の充電率との差が大きいほど、必要電力を大きくしてもよい。必要充電率とは、電動車両50の駆動に必要となる充電率であり、上位制御装置40によって、もしくは充電装置22に設けられた入力部によって、必要充電率が指示される。例えば、電動車両50がフォークリフトであれば、荷役作業のスケジュールなどから算出された必要充電率が、上位制御装置40から充電制御装置31に指示されてもよい。電動車両50が乗用車であれば、搭乗者が入力部によって走行予定距離を入力することで、走行予定距離から必要充電率が算出されてもよい。 Next, in step S5, the charging control device 31 calculates charging power. The charging control device 31 functions as the calculation unit 38 by performing the process of step S5. First, the charging control device 31 calculates the required power in its own charging station 21. The required power can be calculated from the charging information. The required power can be calculated at least if the connection state of the electric vehicle 50 to the charging station 21 can be detected. For example, the required power when one electric vehicle 50 is connected to the charging station 21 may be set in advance, and the required power may be calculated according to the number of charging devices 22 to which the electric vehicle 50 is connected. Therefore, the charging information only needs to include at least the connection state information. When the charging information includes the charging rate of the secondary battery 51, the lower the charging rate of the secondary battery 51, the larger the required power may be. When the required charging rate is instructed to the charging control device 31, the required power may be increased as the difference between the required charging rate and the charging rate of the secondary battery 51 increases. The required charging rate is a charging rate required to drive the electric vehicle 50, and the required charging rate is instructed by the host controller 40 or an input unit provided in the charging device 22. For example, if the electric vehicle 50 is a forklift, the higher-level control device 40 may instruct the charging control device 31 of the required charging rate calculated from the cargo handling schedule or the like. If the electric vehicle 50 is a passenger vehicle, the required charging rate may be calculated from the planned traveling distance by the passenger inputting the planned traveling distance using the input unit.
 充電制御装置31は、自身が属する充電ステーション21の必要電力を算出する処理と同様の処理によって、他の充電ステーション21の必要電力を算出する。充電制御装置31は、自身の充電ステーション21での必要電力と、その他の充電ステーション21での必要電力とを加算して、充電設備20全体での必要電力を求める。充電制御装置31は、充電設備20全体での必要電力に占める、自身の充電ステーション21の必要電力の割合を求める。充電制御装置31は、算出された割合と、充電可能電力とに基づき、基礎充電電力を算出する。例えば、算出された割合と、充電可能電力とを乗算することで、基礎充電電力を算出する。基礎充電電力は、マージンや係数を考慮して算出された値であってもよい。基礎充電電力とは、優先情報を加味しない場合に、各充電ステーション21に分配される電力である。 The charging control device 31 calculates the required power of other charging stations 21 by the same process as the process of calculating the required power of the charging station 21 to which it belongs. The charging control device 31 adds the required power of its own charging station 21 and the required power of the other charging stations 21, and obtains the required power of the entire charging facility 20. The charging control device 31 obtains the ratio of the required power of its own charging station 21 to the required power of the entire charging facility 20. The charge control device 31 calculates the basic charge power based on the calculated ratio and the chargeable power. For example, the basic charging power is calculated by multiplying the calculated ratio by the chargeable power. The basic charging power may be a value calculated in consideration of a margin and a coefficient. The basic charging power is the power distributed to each charging station 21 when priority information is not added.
 次に、充電制御装置31は、優先情報に基づき、基礎充電電力から、充電ステーション21に分配される電力である充電電力を算出する。充電制御装置31は、基礎充電電力に係数を乗算することで、充電電力を算出してもよい。例えば、優先情報により、1つの充電ステーション21に優先的に電力を分配するように指定されている場合、充電制御装置31は、当該充電ステーション21の係数を1.2とするとともに、他の2つの充電ステーション21の係数を0.9としてもよい。優先情報によって、充電ステーション21の優先順位が定められている場合、優先順位の高い充電ステーション21から順に、係数を1.1、1.0、0.9としてもよい。また、係数を乗算するのに代えて、基礎充電電力に、優先情報に応じた固定値を加減することで、充電電力を算出してもよい。即ち、充電制御装置31は、優先情報に基づき、優先度の高い充電ステーション21に、優先して電力を分配できればよく、充電電力の算出方法は任意である。なお、充電装置22に対して優先情報が設定されている場合、優先して電力が分配される充電装置22の数や、優先順位の高い充電装置22の数で、係数や固定値を定めればよい。 Next, the charging control device 31 calculates the charging power, which is the power distributed to the charging station 21, from the basic charging power based on the priority information. The charging control device 31 may calculate the charging power by multiplying the basic charging power by a coefficient. For example, when the priority information specifies that the power is preferentially distributed to one charging station 21, the charging control device 31 sets the coefficient of the charging station 21 to 1.2, and the other two. The coefficient of one charging station 21 may be 0.9. When the priority order of the charging stations 21 is determined by the priority information, the coefficients may be set to 1.1, 1.0 and 0.9 in order from the charging station 21 having the highest priority order. Instead of multiplying by the coefficient, the charging power may be calculated by adding or subtracting a fixed value according to the priority information to the basic charging power. That is, the charging control device 31 only needs to preferentially distribute the power to the charging station 21 having a high priority based on the priority information, and the method of calculating the charging power is arbitrary. When priority information is set for the charging device 22, a coefficient or a fixed value is set depending on the number of charging devices 22 to which power is preferentially distributed or the number of charging devices 22 with high priority. Good.
 次に、ステップS6において、充電制御装置31は、充電電力指示値を算出する。充電電力指示値は、充電電力及び充電情報に基づき算出される。また、充電ステーション21の複数の充電装置22のうち一部が、優先的に電力の分配が行われる充電装置22に指定されている場合、優先情報も加味して充電電力指示値が算出される。この場合、充電ステーション21に対する上述した優先的な電力分配の場合と同様に、優先情報に応じて、充電電力指示値に係数を乗算したり、充電電力指示値に固定値を加減すればよい。 Next, in step S6, the charging control device 31 calculates a charging power instruction value. The charging power instruction value is calculated based on the charging power and the charging information. Further, when some of the plurality of charging devices 22 of the charging station 21 are designated as the charging devices 22 in which the power is preferentially distributed, the charging power instruction value is calculated in consideration of the priority information. .. In this case, as in the case of the above-described preferential power distribution to the charging station 21, the charging power instruction value may be multiplied by a coefficient or the charging power instruction value may be adjusted by a fixed value according to the priority information.
 次に、ステップS7において、充電制御装置31は、充電電力指示値を第1充電装置22Aに送信する。ステップS8において、第1充電装置22Aは、充電電力指示値に従って二次電池51の充電を行う。 Next, in step S7, the charging control device 31 transmits the charging power instruction value to the first charging device 22A. In step S8, the first charging device 22A charges the secondary battery 51 according to the charging power instruction value.
 充電制御装置31は、予め設定された設定時間T1毎に、充電電力を算出する。設定時間T1は、充電装置22や二次電池51の、充電電力指示値に対する追従性に基づき、設定されている。充電制御装置31が充電電力指示値を充電装置22に出力した後に、二次電池51に実際に供給される電力が充電電力指示値に追従するには、時間を要する。設定時間T1としては、二次電池51に実際に供給される電力が充電電力指示値に追従するのに要する時間よりも、長い時間に設定される。 The charging control device 31 calculates charging power for each preset time T1. The set time T1 is set based on the followability of the charging device 22 and the secondary battery 51 with respect to the charging power instruction value. It takes time for the power actually supplied to the secondary battery 51 to follow the charging power instruction value after the charging control device 31 outputs the charging power instruction value to the charging device 22. The set time T1 is set to be longer than the time required for the electric power actually supplied to the secondary battery 51 to follow the charging power instruction value.
 ステップS5での充電電力の算出後、次に充電電力の算出が行われるステップS51の前に、ステップS9で第2充電装置22Bが、当該第2充電装置22Bへの電動車両50の接続を検出したとする。この場合、ステップS10において、第2充電装置22Bから、充電制御装置31に充電情報が送信される。ステップS11において、充電制御装置31は、第2充電装置22Bからの充電情報を取得することで、電動車両50が第2充電装置22Bに接続されたことを認識する。 After the calculation of the charging power in step S5 and before the step S51 in which the charging power is calculated next, the second charging device 22B detects the connection of the electric vehicle 50 to the second charging device 22B in step S9. Suppose In this case, in step S10, the charging information is transmitted from the second charging device 22B to the charging control device 31. In step S11, the charging control device 31 recognizes that the electric vehicle 50 is connected to the second charging device 22B by acquiring the charging information from the second charging device 22B.
 第2充電装置22Bに電動車両50が接続された場合、ステップS51で充電電力の算出が行われるまでの間、充電制御装置31は充電装置22に充電電力指示値を送信しない。即ち、充電制御装置31は、充電装置22への電動車両50の接続を契機とした充電電力の算出を行わず、設定時間T1の経過のみを契機として、充電電力の算出を行う。第2充電装置22Bは、電動車両50との接続の検出から、次に充電制御装置31によって充電電力の算出が行われるまで(S51)、充電を行わずに待機することになる。 When the electric vehicle 50 is connected to the second charging device 22B, the charging control device 31 does not transmit the charging power instruction value to the charging device 22 until the charging power is calculated in step S51. That is, the charging control device 31 does not calculate the charging power triggered by the connection of the electric vehicle 50 to the charging device 22, but calculates the charging power only when the set time T1 elapses. The second charging device 22B stands by without charging from the detection of the connection with the electric vehicle 50 to the next calculation of the charging power by the charging control device 31 (S51).
 ステップS5での充電電力の算出から、設定時間T1が経過すると、ステップS51で充電制御装置31によって充電電力の算出が行われる。すると、ステップS61において、2つの充電装置22に対する充電電力指示値が充電制御装置31によって算出される。ステップS71において、2つの充電装置22に対して充電制御装置31から充電電力指示値が送信される。これにより、ステップS81,ステップS82において、2つの充電装置22に接続された各電動車両50の、二次電池51が充電される。 When the set time T1 has elapsed from the calculation of the charging power in step S5, the charging control device 31 calculates the charging power in step S51. Then, in step S61, the charging control device 31 calculates the charging power instruction value for the two charging devices 22. In step S71, the charging control device 31 transmits the charging power instruction value to the two charging devices 22. As a result, in steps S81 and S82, the secondary battery 51 of each electric vehicle 50 connected to the two charging devices 22 is charged.
 本実施形態の作用について説明する。
 各充電ステーション21の充電制御装置31は、ネットワークを介して、他の充電ステーション21の充電情報を取得可能である。これにより、各充電制御装置31は、優先情報と、自身の充電ステーション21の充電情報と、及び他の充電ステーション21の充電情報とに基づき、充電電力を算出可能である。よって充電制御装置31では、自身の充電ステーション21に加えて、他の充電ステーション21の充電情報も加味して、充電電力が算出されるため、各充電ステーション21に分配される充電電力を適切に設定することができる。仮に、充電ステーション21の電力需要の傾向に応じて充電電力が設定される場合、充電情報を考慮せずに充電電力が設定される。このため、二次電池51の状態などを考慮せずに、充電電力が設定されることになる。また、必要電力の多い充電ステーション21に、電力が多く分配されるとは限らない。これに対し、本実施形態のように、充電ステーション21の充電情報に応じて充電電力を算出する場合、充電ステーション21に接続されている電動車両50の台数や、二次電池51の充電率等を加味して、充電電力が算出される。他の充電ステーション21の充電情報も加味して充電電力を算出することで、必要電力の多い充電ステーション21に、電力の分配を多くすることが可能になる。優先情報に基づき充電電力が算出されることで、特定の充電装置22に、優先的に電力を分配することが可能になる。充電設備20の管理者が、優先情報を適宜設定することができるため、充電電力の細かい設定が可能になる。
The operation of this embodiment will be described.
The charging control device 31 of each charging station 21 can acquire the charging information of another charging station 21 via the network. Thereby, each charging control device 31 can calculate the charging power based on the priority information, the charging information of the charging station 21 of itself, and the charging information of the other charging stations 21. Therefore, the charging control device 31 calculates the charging power in consideration of the charging information of the other charging stations 21 in addition to the charging station 21 of itself, so that the charging power to be distributed to each charging station 21 is appropriately calculated. Can be set. If the charging power is set according to the tendency of the power demand of the charging station 21, the charging power is set without considering the charging information. Therefore, the charging power is set without considering the state of the secondary battery 51. In addition, a large amount of power is not always distributed to the charging station 21 that requires a large amount of power. On the other hand, when the charging power is calculated according to the charging information of the charging station 21 as in the present embodiment, the number of electric vehicles 50 connected to the charging station 21, the charging rate of the secondary battery 51, and the like. The charging power is calculated in consideration of the above. By calculating the charging power in consideration of the charging information of the other charging stations 21 as well, it becomes possible to increase the distribution of the power to the charging stations 21 that require much power. By calculating the charging power based on the priority information, the power can be preferentially distributed to the specific charging device 22. Since the administrator of the charging facility 20 can set the priority information as appropriate, the charging power can be finely set.
 一方で、上位制御装置40が充電電力を算出し、各充電制御装置31に充電電力を指示することも考えられる。しかしながら、上位制御装置40に充電情報を送信し、上位制御装置40に充電電力を算出させると、上位制御装置40が一括で、各充電ステーション21の充電電力を算出することになり、上位制御装置40の負荷が大きい。また、上位制御装置40と充電制御装置31との間の通信遅延により、充電情報に基づいて算出された充電電力が反映されるのに、時間を要する場合がある。これに対して、本実施形態のように充電制御装置31が充電電力を算出する場合、充電制御装置31は、自身の充電ステーション21の充電電力を算出すればよい。この場合、複数の充電ステーション21の充電電力を、一部の装置で一括して算出する必要がないため、一部の装置に負荷が集中することが抑制される。また、各充電制御装置31が充電電力を算出するので、通信遅延が生じることを抑制できる。 On the other hand, it is conceivable that the upper control device 40 calculates the charging power and instructs each charging control device 31 on the charging power. However, when the charging information is transmitted to the higher-level control device 40 and the higher-level control device 40 calculates the charging power, the higher-level control device 40 collectively calculates the charging power of each charging station 21. The load of 40 is large. Also, it may take time for the charging power calculated based on the charging information to be reflected due to the communication delay between the host controller 40 and the charging controller 31. On the other hand, when the charging control device 31 calculates the charging power as in the present embodiment, the charging control device 31 may calculate the charging power of its own charging station 21. In this case, since it is not necessary to collectively calculate the charging power of the plurality of charging stations 21 in some devices, it is possible to prevent the load from being concentrated in some devices. Further, since each charging control device 31 calculates the charging power, it is possible to suppress the occurrence of communication delay.
 図2に二点鎖線で示すように、充電ステーション21に充電装置22を増設する場合、充電装置22と充電制御装置31とを、配線28によって相互に接続する必要がある。仮に、各充電ステーション21で充電制御装置31を共通化し、充電設備20で充電制御装置31を1つしか設けない場合、配線28が長くなりやすい。また、1つの充電制御装置31に接続される充電装置22の数が多くなり、通信仕様の複雑化を招く。これに対して、本実施形態のように充電ステーション21毎に充電制御装置31を設けると、充電制御装置31との接続対象となる充電装置22から、複数の充電制御装置31のうち最も近い充電制御装置31に、配線28を接続することができる。従って、配線28の長さを短くすることができる。また、複数の充電制御装置31に分散して充電装置22を接続できるため、通信仕様の複雑化が生じにくい。 As shown by the chain double-dashed line in FIG. 2, when adding the charging device 22 to the charging station 21, it is necessary to connect the charging device 22 and the charging control device 31 to each other by the wiring 28. If the charging control device 31 is shared by the charging stations 21 and only one charging control device 31 is provided in the charging facility 20, the wiring 28 tends to be long. In addition, the number of charging devices 22 connected to one charging control device 31 increases, and communication specifications become complicated. On the other hand, when the charging control device 31 is provided for each charging station 21 as in the present embodiment, the charging device 22 that is the connection target of the charging control device 31 is closest to the charging control device 31. The wiring 28 can be connected to the control device 31. Therefore, the length of the wiring 28 can be shortened. Further, since the charging devices 22 can be connected to the plurality of charging control devices 31 in a distributed manner, complication of communication specifications hardly occurs.
 本実施形態の効果について説明する。
 (1)充電制御装置31は、自身が属する充電ステーション21に加えて、他の充電ステーション21の充電情報も加味して、充電電力を算出する。従って、充電情報に合わせた適切な充電電力を設定することができる。また、優先情報に基づき充電電力を算出することで、特定の充電装置22に優先的に電力を分配することが可能になる。
The effects of this embodiment will be described.
(1) In addition to the charging station 21 to which the charging control device 31 belongs, the charging control device 31 also calculates charging power by considering charging information of other charging stations 21. Therefore, it is possible to set an appropriate charging power according to the charging information. Moreover, by calculating the charging power based on the priority information, it becomes possible to preferentially distribute the power to the specific charging device 22.
 (2)充電装置22は、充電電力の算出後、次に充電電力の算出が行われる前に当該充電装置22との電動車両50の接続を検出した場合、次に充電電力の算出が行われてから二次電池51の充電を行う。例えば充電装置22との電動車両50の接続を契機に充電電力を算出する場合に比べて、充電制御装置31が行う制御を簡略化することができる。 (2) When the charging device 22 detects the connection of the electric vehicle 50 with the charging device 22 after the calculation of the charging power and before the calculation of the charging power is performed next, the charging power is calculated next. After that, the secondary battery 51 is charged. For example, the control performed by the charging control device 31 can be simplified as compared with the case where the charging power is calculated when the electric vehicle 50 is connected to the charging device 22.
 実施形態は、以下のように変更して実施することができる。実施形態及び以下の変形例は、技術的に矛盾しない範囲で、互いに組み合わせて実施することができる。
 ○充電制御装置31は、電動車両50が充電装置22に接続されたことを契機に、充電電力を算出してもよい。この場合、充電装置22に電動車両50が接続されてから、充電が開始されるまでの時間が短くなる。
The embodiment can be modified and implemented as follows. The embodiment and the following modifications can be implemented in combination with each other within a technically consistent range.
The charging control device 31 may calculate the charging power when the electric vehicle 50 is connected to the charging device 22. In this case, the time from when the electric vehicle 50 is connected to the charging device 22 to when the charging is started becomes short.
 ○充電制御装置31は、電動車両50が充電装置22に接続されたことを契機に、充電装置22に充電を行わせてもよい。例えば、充電制御装置31は、充電電力に余剰分があれば、余剰分の電力によって、充電装置22に接続された電動車両50の二次電池51を充電してもよい。 ○ The charging control device 31 may cause the charging device 22 to charge when the electric vehicle 50 is connected to the charging device 22. For example, if there is a surplus in charging power, the charging control device 31 may charge the secondary battery 51 of the electric vehicle 50 connected to the charging device 22 with the surplus power.
 ○各充電ステーション21の充電制御装置31は、無線機器によりネットワークを構築していてもよい。
 ○各充電制御装置31によって構築されるネットワークは、バス型のローカルエリアネットワークであってもよいし、リング型のローカルエリアネットワークであってもよい。これらの場合、複数の充電制御装置31を相互に接続するためのハブ32を用いなくてもよい。
The charging control device 31 of each charging station 21 may construct a network by wireless devices.
The network constructed by each charging control device 31 may be a bus type local area network or a ring type local area network. In these cases, the hub 32 for connecting the plurality of charge control devices 31 to each other may not be used.

Claims (4)

  1.  複数の充電ステーションを備えた充電設備であって、
     前記複数の充電ステーションのそれぞれは、
     系統電源から供給される電力によって、電動車両の二次電池を充電するように構成される複数の充電装置と、
     前記充電装置及び上位制御装置と通信可能であるように設けられた充電制御装置と、を備え、
     前記複数の充電ステーションの前記充電制御装置は、ネットワークを構築することで互いの情報を取得可能であり、
     前記複数の充電ステーションの前記充電制御装置のそれぞれは、
     前記二次電池の充電に関する情報である充電情報を、前記充電装置から取得するように構成される充電情報取得部と、
     前記充電装置のいずれに優先的に電力を分配するかを示す情報である優先情報を、前記上位制御装置から取得するように構成される優先情報取得部と、
     前記充電設備で使用することが可能な電力である充電可能電力を、前記上位制御装置から取得するように構成される充電可能電力取得部と、
     前記優先情報と、前記充電情報取得部により取得した前記充電情報と、及び前記ネットワークを介して他の充電ステーションから取得した前記充電情報とから、前記充電可能電力のうち自身の充電ステーションに割り当てられる充電電力を算出するように構成される算出部と、
    を備える充電設備。
    A charging facility having a plurality of charging stations,
    Each of the plurality of charging stations,
    A plurality of charging devices configured to charge the secondary battery of the electric vehicle by the electric power supplied from the system power supply,
    A charging control device provided so as to be able to communicate with the charging device and the host control device;
    The charging control devices of the plurality of charging stations can acquire information of each other by building a network,
    Each of the charging control devices of the plurality of charging stations,
    Charging information, which is information about charging the secondary battery, a charging information acquisition unit configured to acquire from the charging device,
    Priority information, which is information indicating which of the charging devices is to be preferentially distributed with power, a priority information acquisition unit configured to acquire from the upper control device,
    Rechargeable power that is power that can be used in the charging facility, a rechargeable power acquisition unit configured to acquire from the host control device,
    From the priority information, the charging information acquired by the charging information acquisition unit, and the charging information acquired from another charging station via the network, it is allocated to its own charging station among the rechargeable power. A calculator configured to calculate charging power,
    Charging equipment equipped with.
  2.  前記算出部は、予め設定された設定時間毎に前記充電電力を算出するように構成され、
     前記充電装置は、前記充電電力の算出後、次に前記充電電力の算出が行われる前に、前記充電装置との前記電動車両の接続を検出した場合、次に前記充電電力の算出が行われてから前記二次電池の充電を行うように構成される、
     請求項1に記載の充電設備。
    The calculation unit is configured to calculate the charging power at each preset time,
    When the charging device detects the connection of the electric vehicle with the charging device after the calculation of the charging power and before the calculation of the charging power is performed next, the calculation of the charging power is performed next. And then configured to charge the secondary battery,
    The charging facility according to claim 1.
  3.  複数の充電ステーションを備えた充電設備の制御方法であって、
     前記複数の充電ステーションのそれぞれは、複数の充電装置と、充電制御装置とを備え、前記充電装置は、系統電源から供給される電力によって、電動車両の二次電池を充電し、
     前記制御方法は、
     前記複数の充電ステーションの前記充電制御装置によって、ネットワークを構築することで互いの情報を取得することと、
     前記複数の充電ステーションの前記充電制御装置のそれぞれによって、
      前記充電装置及び上位制御装置と通信することと、
      前記二次電池の充電に関する情報である充電情報を、前記充電装置から取得することと、
      前記充電装置のいずれに優先的に電力を分配するかを示す情報である優先情報を、前記上位制御装置から取得することと、
      前記充電設備で使用することが可能な電力である充電可能電力を、前記上位制御装置から取得することと、
      前記優先情報と、取得された前記充電情報と、及び前記ネットワークを介して他の充電ステーションから取得された前記充電情報とから、前記充電可能電力のうち自身の充電ステーションに割り当てられる充電電力を算出することと
    を備える、充電設備の制御方法。
    A method of controlling a charging facility having a plurality of charging stations,
    Each of the plurality of charging stations includes a plurality of charging devices and a charging control device, and the charging device charges a secondary battery of an electric vehicle with electric power supplied from a system power supply,
    The control method is
    By the charging control device of the plurality of charging stations, to acquire information of each other by building a network,
    By each of the charging control devices of the plurality of charging stations,
    Communicating with the charging device and the host controller,
    Obtaining charging information, which is information about charging the secondary battery, from the charging device,
    Acquiring priority information, which is information indicating which of the charging devices is to be preferentially distributed with power, from the upper control device,
    Obtaining rechargeable power, which is the power that can be used in the charging facility, from the host controller,
    From the priority information, the acquired charging information, and the charging information acquired from another charging station via the network, calculate the charging power allocated to the charging station of the rechargeable power. A method for controlling charging equipment, comprising:
  4.  前記制御方法はさらに、前記複数の充電ステーションの前記充電制御装置のそれぞれによって、
     予め設定された設定時間毎に、前記充電電力を算出することと、
     前記充電電力の算出後、次に前記充電電力の算出が行われる前に、前記充電装置との前記電動車両の接続を検出した場合、次に前記充電電力の算出が行われてから、前記充電装置によって前記二次電池の充電を行うことと
    を備える、請求項3に記載の充電設備の制御方法。
    The control method may further be performed by each of the charging control devices of the plurality of charging stations,
    Calculating the charging power for each preset time,
    When the connection of the electric vehicle to the charging device is detected after the calculation of the charging power and before the calculation of the charging power is performed next, the charging is performed after the calculation of the charging power is performed next. The method of controlling charging equipment according to claim 3, further comprising: charging the secondary battery with a device.
PCT/JP2020/004624 2019-02-08 2020-02-06 Charging equipment, and method for controlling charging equipment WO2020162553A1 (en)

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JP2015050853A (en) * 2013-09-02 2015-03-16 株式会社豊田自動織機 Charge system, and charge station for electric vehicle

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JP2015050853A (en) * 2013-09-02 2015-03-16 株式会社豊田自動織機 Charge system, and charge station for electric vehicle

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