JP7052753B2 - Charging equipment - Google Patents

Charging equipment Download PDF

Info

Publication number
JP7052753B2
JP7052753B2 JP2019021829A JP2019021829A JP7052753B2 JP 7052753 B2 JP7052753 B2 JP 7052753B2 JP 2019021829 A JP2019021829 A JP 2019021829A JP 2019021829 A JP2019021829 A JP 2019021829A JP 7052753 B2 JP7052753 B2 JP 7052753B2
Authority
JP
Japan
Prior art keywords
charging
power
information
charge
control device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2019021829A
Other languages
Japanese (ja)
Other versions
JP2020129917A (en
Inventor
泰城 岩田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Industries Corp
Original Assignee
Toyota Industries Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Industries Corp filed Critical Toyota Industries Corp
Priority to JP2019021829A priority Critical patent/JP7052753B2/en
Priority to PCT/JP2020/004624 priority patent/WO2020162553A1/en
Publication of JP2020129917A publication Critical patent/JP2020129917A/en
Application granted granted Critical
Publication of JP7052753B2 publication Critical patent/JP7052753B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION 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
    • B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems 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
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—Systems 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]
    • Y—GENERAL 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS 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
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
    • Y—GENERAL 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS 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
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/12—Remote or cooperative charging
    • Y—GENERAL 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS 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
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Landscapes

  • Engineering & Computer Science (AREA)
  • 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)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Description

本発明は、充電設備に関する。 The present invention relates to a 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。特許文献１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 electric power supplied from the system power supply to a plurality of charging stations, for example, Patent Document 1 is described. The charging system described in Patent Document 1 includes a plurality of charging stations for charging a secondary battery which is a power source of an electric vehicle, and a higher-level control device for setting the power distributed to the plurality of charging stations. The host controller sets the power to be distributed according to the tendency of the power demand 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Japanese Unexamined Patent Publication No. 2015-50853

特許文献１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。
本発明の目的は、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 Patent Document 1, the electric power distributed to each charging station depends on the electric power demand. Therefore, it cannot be said that the appropriate power is set according to the state of the secondary battery and the like.
An object of the present invention is to provide a charging facility capable of appropriately setting the charging power distributed to each of a plurality of charging stations.

上記課題を解決する充電設備は、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充電可能電力取得部と、前記優先情報、前記充電情報取得部により取得した前記充電情報、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算出部と、を備える。 The charging facility that solves the above problems is a charging facility provided with a plurality of charging stations, and each of the plurality of charging stations charges a plurality of secondary batteries of an electric vehicle by power supplied from a grid power source. A charging device and a charging control device provided so as to be able to communicate with the charging device and the host control device are provided, and the charging control devices of the plurality of charging stations can acquire each other's information by constructing a network. Each of the charge control devices of the plurality of charging stations has priority over either the charge information acquisition unit for acquiring the charge information which is the information regarding the charge of the secondary battery from the charge device or the charge device. The priority information acquisition unit that acquires priority information, which is information indicating whether to distribute the power to the upper control device, and the rechargeable power, which is the power that can be used in the charging facility, are acquired from the upper control device. From the rechargeable power acquisition unit, 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, one of the rechargeable powers itself. It is provided with a calculation unit for calculating the charging power allocated to the charging station.

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、自身の充電ステーションの充電情報、及び他の充電ステーションの充電情報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 charge control device of each charging station can acquire charging information of other charging stations via a network. Each charge control device calculates the charge power based on the priority information, the charge information of its own charging station, and the charge information of other charging stations. Since the charging power is calculated by taking into account the charging information of other charging stations in addition to the own charging station, it is possible to set an appropriate charging power according to the charging information. Further, by calculating the charging power based on the priority information, it becomes possible to preferentially distribute the power to a 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し、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ってもよい。 With respect to the charging equipment, the calculation unit calculates the charging power for each preset time, and the charging device calculates the charging power and then before the calculation of the charging power is performed. When the connection of the electric vehicle is detected, the secondary battery may be charged after the charging power is calculated next.

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充電制御装置が行う制御を簡略化できる。 When the connection of the electric vehicle is detected, the control performed by the charge control device can be simplified as compared with the case where the charge power is calculated.

本発明によれば、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 invention, the charging power distributed to each of the plurality of charging stations can be appropriately set.

充電システムの概略構成図。Schematic block diagram of the charging system. 充電設備を模式的に示すブロック図。A block diagram schematically showing a charging facility. 上位制御装置、充電制御装置及び充電装置の相互作用図。Interaction diagram of upper control device, charge control device and charge device.

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及び充電設備２０以外の負荷１１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 control device 40. The charging facility 20 is provided to a consumer who is supplied with electric power from an electric power supplier such as an electric power company. Examples of consumers include factories, public facilities, and commercial facilities. The consumer is provided with a load 11 other than the charging facility 20. The electric power supplied from the electric power supplier through the grid power supply 12 is shared by the charging equipment 20 and the load 11 other than the charging equipment 20. The charging system 10 is a system that controls the electric power used in the charging equipment 20 and the load 11 so as not to exceed the 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 equipment 20 includes a plurality of charging stations 21. In the present embodiment, three charging stations 21 will be illustrated and described, 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 travels using a rechargeable secondary battery 51 as an electric power source. As the secondary battery 51, any kind of secondary battery such as a lithium ion secondary battery and a nickel hydrogen secondary battery may be used. The electric vehicle 50 may be of any kind, such as a passenger vehicle such as an electric vehicle or a plug-in hybrid vehicle, or an industrial vehicle such as a forklift. The battery control unit 52 estimates the SOC: State Of Charge, which is the charge 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 charge 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. In this embodiment, two charging devices 22 are shown, but the number of charging devices 22 may be changed as appropriate. The charging station 21 is a unit composed of 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 charged stations 21 provided in the same geographically separated section. It may be the charging station 21 of. For convenience of explanation, each charging station 21 will be described as having the same configuration, but the specifications of the charging device 22 such as the maximum chargeable power that can be output by the charging device 22 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とが接続され、第１通信部２５と通信部５３とが接続される。第１通信部２５と通信部５３とが接続されることで、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 conversion unit 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. A second communication unit 26 and a control unit 27 are provided. The first communication unit 25 is a member for transmitting / receiving information to / from the communication unit 53 of the electric vehicle 50. The second communication unit 26 is a member for transmitting / receiving information to / from the charge 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, and the first communication unit 25 and the communication unit 53 are connected. By connecting the first communication unit 25 and the communication unit 53, the control unit 27 can acquire information about the secondary battery 51 such as the charge rate of the secondary battery 51. The control unit 27 controls the conversion unit 23 according to the charge power instruction value instructed from the charge 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 charge control device 31. The charging information is information on charging the secondary battery 51, more specifically, information necessary for charging the secondary battery 51 in the charging facility 20. The charging information includes at least one of the information of the charging device 22, the information of the secondary battery 51, and the information of the electric vehicle 50. For example, the charging information includes connection state information, identification information, specifications of the charging device 22, and information regarding 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 completed charging the secondary battery 51, and the like. This is information indicating the charging state of the charging device 22 of the above. The identification information is information indicating a unique ID set individually for each charging device 22. The specifications of the charging device 22 are information indicating the maximum charging power and the like that can be output by the charging device 22.

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、ハブ３２と各充電制御装置３１とを接続する配線３３とを備えており、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 charge control devices 31 of each charging station 21 are connected to each other so as to be communicable with each other. More specifically, the charging equipment 20 includes a hub 32 and a wiring 33 connecting the hub 32 and each charge control device 31, and the charge control devices 31 are connected to each other via the hub 32. There is. As a result, a network is constructed by each charge control device 31. In the present embodiment, a star-shaped local area network is constructed by connecting the charge control devices 31 of the plurality of charge stations 21 by the hub 32. The hub 32 is connected to the host control device 40 in a communicable state. Each charge control device 31 can communicate with the host control device 40 via the hub 32. Each charge control device 31 transmits charge 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 upper control device 40 may be provided in the consumer, or may be provided in a place different from the consumer. 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 control device 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に基づき算出される電力である。充電可能電力は、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算出される。充電可能電力は、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 accumulates and analyzes the charge information acquired from the charge control device 31. That is, the information management unit 41 has created a database of charging information.
The power management unit 42 calculates the rechargeable power. The rechargeable electric power is the electric power that can be used in the charging equipment 20 among the electric power supplied from the system power supply 12, that is, the electric power that can be used for charging the secondary battery 51. The rechargeable electric power is the electric power used in the load 11 other than the charging equipment 20 and the electric power calculated based on the set value. The rechargeable power is calculated so as not to exceed the set value even if the rechargeable power is added to the power used by the load 11. It can be said that the rechargeable power is calculated so that the power used by all consumers does not exceed the set value. Examples of the set value include contracted power, which is the power specified in the contract with the power supplier, and a value lower than the contracted power.

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、優先的に電力を分配する充電装置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 rechargeable power and priority information to each charge control device 31. The priority information is information about the charging device 22 that preferentially distributes electric power. 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 a plurality of charging devices 22 constituting the charging station 21, or is specific among the plurality of charging devices 22 constituting the charging station 21. The information may be such that power is preferentially distributed only to the 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 that designates one or a plurality of charging devices 22 that preferentially distribute power among the plurality of charging devices 22, or designates a priority among the plurality of charging devices 22. There may be. For example, when the priority information is information that specifies to preferentially distribute power to one charging station 21, one charging station 21 specified in the priority information has priority over the remaining two charging stations 21. Power is distributed. When the priority information is information that specifies the priority of the three charging stations 21, the distribution of power to the charging station 21 having the highest priority is given the highest priority, and the power to the charging station 21 having the second highest priority is given the highest priority. Distribution has the second priority.

優先情報でいずれの充電装置２２に優先的に充電を行わせるかは、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。 The administrator of the charging equipment 20 can appropriately set which charging device 22 is to be charged preferentially based on the priority information. Hereinafter, an example of how to set which charging device 22 to preferentially distribute the electric power according to 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、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 specified for each charging station 21, and priority information may be set according to the type of the designated electric vehicle 50. For example, when one of the plurality of charging stations 21 is for a plug-in hybrid vehicle and the remaining two are for an electric vehicle, the electric power may be preferentially distributed to the charging station 21 for the electric vehicle. While the plug-in hybrid vehicle can run on the engine, the mileage of the electric vehicle depends only on the remaining capacity of the secondary battery 51, so that the secondary battery 51 of the electric vehicle is given priority. Charge it.

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、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 designated charging mode. For example, when one of the plurality of charging stations 21 is used for normal charging and the remaining two are used for quick charging, the power may be preferentially distributed to the charging station 21 for quick charging. Since quick charging uses a larger amount of electric power than normal charging, the charging station 21 for quick 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することができる。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 as to preferentially distribute the power 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 also 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。 In the charging system 10 configured as described above, the electric power is distributed to each charging device 22 so that the electric power used by the charging equipment 20 and the load 11 does not exceed the set value. Of the chargeable power, the charge power allocated to each charging station 21 is calculated by the charge control device 31. The charge control device 31 includes a communication unit 34, a priority information acquisition unit 35, a rechargeable power acquisition unit 36, a charge 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 rechargeable 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 charge control device 31 performs a predetermined process. The priority information acquisition unit 35 acquires priority information from the host control device 40. The rechargeable power acquisition unit 36 acquires rechargeable power from the host control device 40. The charging information acquisition unit 37 acquires charging information from the charging device 22. The calculation unit 38 calculates the charging power.

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が接続されており、第２充電装置２２Ｂには電動車両５０の充電が開始された後に電動車両５０が接続される。 Hereinafter, the control performed by the charge control device 31 will be described in detail. In the following description, one of the two charging devices 22 of the charging station 21 will be referred to as a first charging device 22A, and the other will be referred to as a second charging device 22B. The electric vehicle 50 is connected to the first charging device 22A, and the electric vehicle 50 is connected to the second charging device 22B after the charging of the electric vehicle 50 is started.

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、電動車両５０が接続されていない旨の情報が送信される。 As shown in FIG. 3, in step S1, the host control device 40 transmits chargeable power and priority information to the charge control device 31. Although not shown, the host controller 40 transmits rechargeable power and priority information at predetermined intervals. Similarly, in step S2, the first charging device 22A transmits the charging information to the charging control device 31. Although not shown, the first charging device 22A transmits charging information to the charging control device 31 at predetermined intervals. At the time of step S2, since the electric vehicle 50 is not connected to the second charging device 22B, the charging information is not transmitted from the second charging device 22B. Alternatively, as charging information, information indicating that the electric vehicle 50 is not connected is transmitted.

ステップＳ３において、充電制御装置３１は、充電可能電力、優先情報及び自身の充電ステーション２１の充電情報を取得する。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 charge control device 31 acquires chargeable power, priority information, and charge information of its own charging station 21. The charge control device 31 functions as a priority information acquisition unit 35, a rechargeable power acquisition unit 36, and a charge 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における充電装置２２の充電情報、及び他の充電ステーション２１における充電装置２２の充電情報を取得することになる。 Next, in step S4, the charge control device 31 acquires charge information from another charging station 21 via the network. As a result, the charge control device 31 acquires the charge information of the charging device 22 in its own charging station 21 and the charging information of the charging device 22 in the other charging station 21.

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や、充電装置２２に設けられた入力部によって指示される。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 charge control device 31 calculates the charge power. The charge control device 31 functions as the calculation unit 38 by performing the process of step S5. First, the charge control device 31 calculates the required power at its own charging station 21. The required power can be calculated from the charging information. The required power can be calculated if at least the connection state of the electric vehicle 50 can be detected. For example, the required power when one electric vehicle 50 is connected 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 may include at least connection status 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 charge rate is instructed to the charge control device 31, the required power may be increased as the difference between the required charge rate and the charge rate of the secondary battery 51 is larger. The required charge rate is a charge rate required for driving the electric vehicle 50, and is instructed by an upper control device 40 or an input unit provided in the charging device 22. For example, if the electric vehicle 50 is a forklift, the required charge rate calculated from the cargo handling work schedule or the like may be instructed by the host control device 40. If the electric vehicle 50 is a passenger car, the required charge rate may be calculated from the planned travel distance by the passenger inputting the planned travel distance by the input unit.

充電制御装置３１は、自身の充電ステーション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 charge control device 31 calculates the required power of another charging station 21 by the same process as the process of calculating the required power of its own charging station 21. The charge control device 31 adds the required power of its own charging station 21 and the required power of other charging stations 21 to obtain the required power of the entire charging facility 20. The charge 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 rechargeable power. For example, the basic charge power is calculated by multiplying the calculated ratio by the rechargeable power. The basic charge power may be a value calculated in consideration of a margin or a coefficient. The basic charging power is 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、当該充電ステーション２１の係数を１．２、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。優先情報で充電ステーション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 charge control device 31 calculates the charge power, which is the power distributed from the basic charge power to the charge station 21, based on the priority information. The charge control device 31 may calculate the charge power by multiplying the basic charge power by a coefficient. For example, when the priority information specifies that the power is preferentially distributed to one charging station 21, the coefficient of the charging station 21 is 1.2 and the coefficient of the other two charging stations 21 is 0.9. May be. When the priority of the charging station 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. Further, instead of multiplying by a 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 charge control device 31 only needs to be able to distribute the power preferentially to the charge station 21 having a high priority based on the priority information, and the method of calculating the charge power is arbitrary. If priority information is set for the charging device 22, a coefficient or a fixed value can be determined by the number of charging devices 22 to which power is preferentially distributed or the number of charging devices 22 having a 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 charge control device 31 calculates the charge power indicated value. The charge power indicated value is calculated based on the charge power and the charge information. Further, when a part of the plurality of charging devices 22 of the charging station 21 is designated as the charging device 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 charging station 21, the charging power indicated value may be multiplied by a coefficient according to the priority information, or a fixed value may be added to or subtracted from the charging power indicated value.

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 charge control device 31 transmits the charge power indicated value to the first charge device 22A. In step S8, the first charging device 22A charges the secondary battery 51 according to the charging power indicated 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 charge control device 31 calculates the charge power for each preset time T1. The set time T1 is set based on the followability to the charging power indicated value of the charging device 22 and the secondary battery 51. After outputting the charge power instruction value to the charging device 22, it takes time for the power actually supplied to the secondary battery 51 to follow the charge power instruction value. The set time T1 is set to a time longer than the time required for the electric power actually supplied to the secondary battery 51 to follow the charge power indicated 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。 It is assumed that the second charging device 22B detects the connection of the electric vehicle 50 in step S9 after the calculation of the charging power in step S5 and before the next step S51 in which the charging power is calculated. In this case, in step S10, charging information is transmitted from the second charging device 22B to the charging control device 31. In step S11, the charge control device 31 acquires the charge information from the second charging device 22B to recognize that the electric vehicle 50 is connected to the second charging device 22B.

充電制御装置３１は、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、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の接続の検出から、次に充電電力の算出が行われるまで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 charge control device 31 does not calculate the charge power triggered by the connection of the electric vehicle 50, but calculates the charge power only when the set time T1 elapses. The second charging device 22B stands by without charging from the detection of the connection of the electric vehicle 50 to the next calculation of the charging power.

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 power is calculated in step S51. Then, in step S61, the charging power instruction value for the two charging devices 22 is calculated. In step S71, the charging power instruction value is transmitted to the two charging devices 22. As a result, in step S81 and step 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、自身の充電ステーション２１の充電情報、及び他の充電ステーション２１の充電情報に基づき充電電力を算出可能である。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、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。優先情報は、充電設備２０の管理者が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 charge control device 31 of each charging station 21 can acquire charging information of another charging station 21 via a network. As a result, each charge control device 31 can calculate the charge power based on the priority information, the charge information of its own charging station 21, and the charge information of other charging stations 21. Since the charging power is calculated by taking into account the charging information of other charging stations 21 in addition to the own charging station 21, the charging power distributed to each charging station 21 can be appropriately 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, so that the charging power is set without considering the state of the secondary battery 51 or the like. Will be set. Further, a large amount of electric power is not always distributed to the charging station 21 which requires a large amount of electric power. On the other hand, when the charging power is calculated according to the charging information of the charging station 21, the charging power is calculated by taking into consideration the number of electric vehicles 50 connected to the charging station 21, the charging rate of the secondary battery 51, and the like. It is calculated. By calculating the charging power in consideration of the charging information of the other charging stations 21, it is possible to increase the distribution of the power to the charging stations 21 having a large required power. By calculating the charging power based on the priority information, it becomes possible to preferentially distribute the power to the specific charging device 22. Since the priority information can be appropriately set by the administrator of the charging equipment 20, the charging power can be finely set.

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、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。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ことで、通信遅延が生じることを抑制できる。 It is also conceivable that the host control device 40 calculates the charge power and instructs each charge control device 31 to charge the charge power. However, when the charging information is transmitted to the upper control device 40 and the upper control device 40 calculates the charging power, the upper control device 40 collectively calculates the charging power of each charging station 21, and the upper control device 40. The load is heavy. Further, due to the communication delay between the host control device 40 and the charge control device 31, it may take time for the charge power calculated based on the charge information to be reflected. On the other hand, when the charge control device 31 calculates the charge power, the charge control device 31 may calculate the charge power of its own charging station 21. Since it is not necessary for some devices to collectively calculate the charging power of the plurality of charging stations 21, it is possible to prevent the load from being concentrated on some of the devices. Further, by calculating the charge power by each charge control device 31, 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、充電ステーション２１毎に充電制御装置３１を設けると、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 alternate long and short dash line in FIG. 2, when the charging device 22 is added to the charging station 21, it is necessary to connect the charging device 22 and the charge control device 31 by wiring 28. If the charging control device 31 is shared by each charging station 21 and only one charging control device 31 is provided in the charging equipment 20, the wiring 28 tends to be long. In addition, the number of charging devices 22 connected to one charging control device 31 increases, which complicates communication specifications. On the other hand, if the charge control device 31 is provided for each charge station 21, the wiring 28 can be connected to the nearest charge control device 31 among the plurality of charge control devices 31. Therefore, the length of the wiring 28 can be shortened. Further, since the charging device 22 can be distributed to the plurality of charging control devices 31 and connected to the charging device 22, the communication specifications are less likely to be complicated.

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 effect of this embodiment will be described.
(1) The charge control device 31 calculates the charge power by taking into account the charge information of other charging stations 21 in addition to its own charge station 21. Therefore, it is possible to set an appropriate charging power according to the charging information. Further, 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。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) If the charging device 22 detects the connection of the electric vehicle 50 after the calculation of the charging power and before the calculation of the charging power is performed next, the secondary battery 51 is calculated after the calculation of the charging power is performed next. Charge. The control performed by the charge control device 31 can be simplified as compared with the case where the charge power is calculated when the electric vehicle 50 is connected.

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 embodiments and the following modifications can be implemented in combination with each other within a technically consistent range.
○ The charge control device 31 may calculate the charge power when the electric vehicle 50 is connected to the charge device 22. In this case, the time from when the electric vehicle 50 is connected to the charging device 22 until charging is started is shortened.

○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 charge 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 the charging power has a surplus, the charge 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、充電制御装置３１を接続するためのハブ３２を用いなくてもよい。 ○ The charge control device 31 of each charging station 21 may have a network constructed by a wireless device.
○ The network constructed by each charge control device 31 may be a bus-type local area network or a ring-type local area network. In these cases, it is not necessary to use the hub 32 for connecting the charge control device 31.

１２…系統電源、２０…充電設備、２１…充電ステーション、２２…充電装置、３１…充電制御装置、３５…優先情報取得部、３６…充電可能電力取得部、３７…充電情報取得部、３８…算出部、４０…上位制御装置、５０…電動車両、５１…二次電池。 12 ... System power supply, 20 ... Charging equipment, 21 ... Charging station, 22 ... Charging device, 31 ... Charging control device, 35 ... Priority information acquisition unit, 36 ... Rechargeable power acquisition unit, 37 ... Charging information acquisition unit, 38 ... Calculation unit, 40 ... upper control device, 50 ... electric vehicle, 51 ... secondary battery.

Claims (2)

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充電可能電力取得部と、
前記優先情報、前記充電情報取得部により取得した前記充電情報、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算出部と、を備える充電設備。 It is a charging facility equipped with multiple charging stations.
Each of the plurality of charging stations
Multiple charging devices that charge the secondary battery of an electric vehicle with the power supplied from the grid power supply,
It is provided with a charge control device provided so as to be able to communicate with the charge device and the upper control device.
The charge control devices of the plurality of charging stations can acquire each other's information by constructing a network.
Each of the charge control devices of the plurality of charging stations
A charging information acquisition unit that acquires charging information, which is information related to charging of the secondary battery, from the charging device, and a charging information acquisition unit.
A priority information acquisition unit that acquires priority information from the higher-level control device, which is information indicating which of the charging devices the power is preferentially distributed to.
A rechargeable power acquisition unit that acquires rechargeable power, which is power that can be used in the charging equipment, from the higher-level control device, and a rechargeable power acquisition unit.
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, the charging power assigned to the own charging station among the chargeable powers is obtained. A charging facility equipped with a calculation unit for calculation. 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し、
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請求項１に記載の充電設備。 The calculation unit calculates the charging power for each preset time.
When the charging device detects the connection of the electric vehicle after the calculation of the charging power and before the calculation of the charging power is performed next, the secondary battery is calculated after the calculation of the charging power is performed. The charging equipment according to claim 1, which charges the battery.
JP2019021829A 2019-02-08 2019-02-08 Charging equipment Active JP7052753B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2019021829A JP7052753B2 (en) 2019-02-08 2019-02-08 Charging equipment
PCT/JP2020/004624 WO2020162553A1 (en) 2019-02-08 2020-02-06 Charging equipment, and method for controlling charging equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2019021829A JP7052753B2 (en) 2019-02-08 2019-02-08 Charging equipment

Publications (2)

Publication Number Publication Date
JP2020129917A JP2020129917A (en) 2020-08-27
JP7052753B2 true JP7052753B2 (en) 2022-04-12

Family

ID=71947779

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2019021829A Active JP7052753B2 (en) 2019-02-08 2019-02-08 Charging equipment

Country Status (2)

Country Link
JP (1) JP7052753B2 (en)
WO (1) WO2020162553A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023188358A1 (en) * 2022-03-31 2023-10-05 日本電信電話株式会社 Charging control device, charging control method, and program
WO2024052710A1 (en) * 2022-09-08 2024-03-14 日産自動車株式会社 Power reception control method and power reception control device
CN115848203B (en) * 2023-02-17 2023-05-30 南方电网产业投资集团有限责任公司 Charging power expansion allocation method and device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013090571A (en) 2011-10-21 2013-05-13 General Electric Co <Ge> System, charging device, and method for charging power storage device
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013090571A (en) 2011-10-21 2013-05-13 General Electric Co <Ge> System, charging device, and method for charging power storage device
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

Also Published As

Publication number Publication date
WO2020162553A1 (en) 2020-08-13
JP2020129917A (en) 2020-08-27

Similar Documents

Publication Publication Date Title
JP7052753B2 (en) Charging equipment
JP2022093427A (en) Bidirectional charging system for electric automobile
US20210122260A1 (en) Management apparatus, management method, and program
WO2017009978A1 (en) V2g system and charging/discharging control method
CN106627188B (en) Electric automobile increases journey system
JP6037013B2 (en) CHARGE STATE MANAGEMENT METHOD, CHARGE STATE MANAGEMENT DEVICE, AND PROGRAM
JP6402255B2 (en) Charge / discharge devices and transport equipment
JP6393834B2 (en) Server device
WO2014196270A1 (en) Battery and charging device management system, method, and charging device
JPWO2012118184A1 (en) Charging power control system
US11376972B2 (en) Notification controller, mobile body, electric power system, and notification method
CN113165546A (en) Device for charging and discharging a drive accumulator of a hybrid or electric vehicle
US10326270B2 (en) DC power transmission device, DC power reception device, and DC power transmission system
EP2701263B1 (en) Power management system that changes the operating conditions of a battery charger
WO2013122073A1 (en) Power charging and supplying device, power charging and supplying management device, energy management system, and power charging and supplying management method
JP2021016243A (en) Charging and discharging system
KR20230042574A (en) Charging and discharging control device
JP2020202684A (en) Emergency power supply system, emergency power supply method, and program
US20220289060A1 (en) Control system and energy management method
JP2020115701A (en) Charging system
JP2015231289A (en) Charging system and charging type vehicle
JP2013207904A (en) Sharing charging method and system
US10910682B2 (en) DC power control device, method of controlling DC power, and DC power control system
CN116056944A (en) Charging system for charging a battery
JP2021078278A (en) Emergency power supply system, emergency power supply method, and program

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20210520

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20220301

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20220314

R151 Written notification of patent or utility model registration

Ref document number: 7052753

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151