WO2023047540A1 - Station de batterie et procédé de commande - Google Patents

Station de batterie et procédé de commande Download PDF

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Publication number
WO2023047540A1
WO2023047540A1 PCT/JP2021/035108 JP2021035108W WO2023047540A1 WO 2023047540 A1 WO2023047540 A1 WO 2023047540A1 JP 2021035108 W JP2021035108 W JP 2021035108W WO 2023047540 A1 WO2023047540 A1 WO 2023047540A1
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WO
WIPO (PCT)
Prior art keywords
power
power system
battery
converter
state
Prior art date
Application number
PCT/JP2021/035108
Other languages
English (en)
Japanese (ja)
Inventor
健次 柴田
達哉 神野
Original Assignee
本田技研工業株式会社
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 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to PCT/JP2021/035108 priority Critical patent/WO2023047540A1/fr
Publication of WO2023047540A1 publication Critical patent/WO2023047540A1/fr

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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
    • 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
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • 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
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering

Definitions

  • the present invention relates to a battery station and control method.
  • Patent Literatures 1 and 2 power supplied from a power system (commercial power source (power source supplied from a commercial power distribution network owned by a power company)) is used as a system for charging a mobile battery.
  • a battery station is disclosed for charging a mobile battery with a mobile phone.
  • conventional battery stations can be stored at the battery station in the event of a power outage due to a natural disaster such as an earthquake, typhoon, flood, or accident (that is, when the power supply from the power system is interrupted). Even if the (managed) mobile battery is fully charged (fully charged), it cannot be used as a backup power source. In addition, since the conventional battery station charges the mobile battery using the power system, it becomes impossible to charge the mobile battery when the power system fails.
  • An exemplary object of the present invention is to provide a new technology for battery stations.
  • a battery station as one aspect of the present invention includes an accommodating section that detachably accommodates a mobile battery, converts AC power supplied from a power system into DC power, and supplies the power to the mobile battery accommodated in the accommodating section.
  • a bidirectional AC/DC converter that converts DC power stored in a mobile battery housed in the housing unit into AC power and supplies it to the power system;
  • a control unit that controls charging and discharging of the mobile battery housed in the housing unit via an AC/DC converter.
  • a control method as another aspect of the present invention includes a storage unit that detachably stores a mobile battery, and converts AC power supplied from a power system into DC power and supplies the power to the mobile battery stored in the storage unit. and a two-way AC/DC converter that converts DC power stored in a mobile battery housed in the housing unit into AC power and supplies the power to the power system, wherein and controlling charging and discharging of the mobile battery housed in the housing unit via the bidirectional AC/DC converter according to the state of the power system.
  • FIG. 1 is a schematic diagram showing the appearance of a battery station as one aspect of the present invention
  • FIG. 2 is a diagram for explaining the connection relationship between a conventional battery station and a power system
  • FIG. 3 is a diagram for explaining the connection relationship between the battery station and the electric power system according to the embodiment
  • FIG. 4 is a diagram showing the flow of power between the power system and the battery station when the power system is in a normal state
  • FIG. 4 is a diagram showing the flow of power between the power system and the battery station when the power system is in a blackout state
  • FIG. 3 is a diagram for explaining the connection relationship between the battery station and the electric power system according to the embodiment;
  • FIG. 4 is a diagram showing the flow of power between the power system and the battery station when the power system is in a normal state;
  • FIG. 4 is a diagram showing the flow of power between the power system and the battery station when the power system is in a blackout state;
  • FIG. 4 is a diagram showing the flow of power between the power system and the battery station when the power system is in a blackout state;
  • 1 conceptually illustrates the flow of power between a power system, a DC generator, and a battery;
  • FIG. 1 is a schematic diagram showing the appearance of a battery station 1 as one aspect of the present invention.
  • the battery station 1 charges and replaces a portable battery BT, which is a so-called mobile battery or portable battery, which is detachably mounted as a power source for vehicles such as two-wheeled vehicles and various work machines. system.
  • the user can replace a battery with a low or zero amount of stored power with a battery with a sufficient amount of stored power.
  • the battery station 1 is configured as a stationary system (facility) installed in commercial facilities or along roads, but it can also be configured as a portable system.
  • a power system PS is connected to the battery station 1 as shown in FIG.
  • the power system PS is, for example, a commercial power source including power supply equipment such as a power company.
  • the power system PS supplies power (AC power) to the battery station 1 via power lines.
  • the battery station 1 has one or more storage units 110.
  • the housing portion 110 has a function of detachably housing the battery BT, and is configured as a slot into which the battery BT is inserted, for example.
  • the housing portion 110 includes terminals (electrical connection terminals) for supplying power to the battery BT housed in the housing portion 110 or for outputting (taking out) power from the battery BT housed in the housing portion 110 . member) is provided. Therefore, for example, power supplied from the power system PS to the battery station 1 is stored in the battery BT housed in the housing section 110 via the terminal.
  • a battery (mobile battery) housed in a housing portion of a battery station and a power system are connected via a unidirectional AC/DC converter. Therefore, in a conventional battery station, the AC power supplied from the electric power system is converted into DC power by a unidirectional AC/DC converter, and the DC power output from the unidirectional AC/DC converter is transferred to the storage section of the battery station. is supplied to the battery (mobile battery) housed in the battery to charge the battery. As described above, in the conventional technology, the electric power system and the battery are connected via the unidirectional AC/DC converter, so the battery station only charges the battery.
  • the battery station 1 has a bidirectional AC/DC converter 120 and a control section 130 instead of the unidirectional AC/DC converter, as shown in FIG.
  • FIG. 3 is a diagram for explaining the connection relationship between the battery station 1 and the power system PS.
  • the bidirectional AC/DC converter 120 is a converter capable of bidirectionally converting direct current and alternating current to the power system PS and battery BT.
  • the bidirectional AC/DC converter 120 has a function of converting AC power supplied from the power system PS into DC power and supplying (outputting) the AC power to the battery BT accommodated in the housing unit 110; It also has a function of converting the DC power stored in the battery BT accommodated in 110 into AC power and supplying (outputting) it to the power system PS.
  • the control unit 130 is a control device including a processor represented by a CPU, a storage device such as a semiconductor memory, various interfaces, and the like.
  • the control unit 130 operates the battery station 1 by comprehensively controlling each unit of the battery station 1 according to, for example, a program stored in the storage unit.
  • the control unit 130 controls charging and discharging of the battery BT housed in the housing unit 110 via the bidirectional AC/DC converter 120 according to the state of the power system PS.
  • the state of the power system PS indicates a state related to power supply from the power system PS. power outage conditions in which AC power cannot be supplied to 1.
  • the control unit 130 receives information indicating a power outage in the power system PS and information predicting a power outage in the power system PS (power outage in the power system PS occurs) from the information providing device via a communication network such as a local network or the Internet.
  • control section 130 The control of the charging and discharging of the battery BT housed in the housing section 110 by the control section 130 will be specifically described below.
  • control unit 130 determines that power system PS is in a normal state in which AC power can be supplied, as shown in FIG. Control. Specifically, AC power supplied from power system PS is converted into DC power by bidirectional AC/DC converter 120, and the DC power output from bidirectional AC/DC converter 120 is supplied to battery BT. In this way, when power system PS is in the normal state, battery BT housed in housing unit 110 is charged via bidirectional AC/DC converter 120 .
  • FIG. 4 is a diagram showing the flow of power between the power system PS and the battery station 1 when the power system PS is in a normal state.
  • control unit 130 determines that power system PS is in a power failure state in which AC power cannot be supplied, as shown in FIG. DC power) is discharged. Specifically, the DC power output from the battery BT is converted into AC power by the bidirectional AC/DC converter 120, and the AC power output from the bidirectional AC/DC converter 120 is supplied to the power system PS. In this way, when power system PS is in a power outage state, battery BT housed in housing unit 110 is discharged via bidirectional AC/DC converter 120 .
  • FIG. 5 is a diagram showing the flow of power between the power system PS and the battery station 1 when the power system PS is in a blackout state.
  • the battery station 1 can both charge and discharge the battery BT. (charging and discharging) becomes possible. Therefore, in the event of a power failure in the power system PS, the power (DC power) stored in the battery BT housed in the housing unit 110 of the battery station 1 can be supplied (returned) to the power system PS. Station 1 can function as a backup power source. Further, according to this embodiment, the battery station 1 can be used like a storage battery that performs peak shift to level the power consumption.
  • the battery station 1 may further have a DC generator 140 as shown in FIG.
  • DC generator 140 is connected between (battery BT housed in) housing 110 and bidirectional AC/DC converter 120 .
  • the DC generator 140 may be permanently installed between the housing unit 110 and the bi-directional AC/DC converter 120, or may be installed temporarily as needed, for example, during a power outage in the power system PS.
  • the DC generator 140 generates DC power and outputs the DC power to the battery BT accommodated in the accommodation unit 110 and the bidirectional AC/DC converter 120 (power system PS).
  • a generator generally outputs AC power, but in this embodiment, the generator linked (connected) to the battery station 1 is a DC generator 140 that outputs DC power. .
  • the DC generator 140 can be composed of a small and inexpensive generator.
  • the control unit 130 also controls the supply destination of the DC power output from the DC generator 140 according to the state of the power system PS (whether it is in a normal state or a power failure state).
  • control unit 130 determines that power system PS is in a normal state in which AC power can be supplied, as shown in FIG. Control. Specifically, AC power supplied from power system PS is converted into DC power by bidirectional AC/DC converter 120, and the DC power output from bidirectional AC/DC converter 120 is supplied to battery BT. In addition, the direct current generated by the DC generator 140 and output from the DC generator 140 is supplied to the battery BT. Thus, when the power system PS is in the normal state, power is supplied from both the power system PS and the DC generator 140 to the battery BT housed in the housing unit 110, and the battery BT charged. By using both the power system PS and the DC generator 140, it is possible to efficiently charge the battery BT housed in the housing unit 110. FIG.
  • FIG. 7 is a diagram showing power flow between the power system PS and the battery station 1 including the DC generator 140 when the power system PS is in a normal state.
  • control unit 130 determines that power system PS is in a power outage state in which AC power cannot be supplied, as shown in FIG. DC power) is discharged, and the DC current generated and output by the DC generator 140 is controlled to be supplied to the power system PS via the bidirectional AC/DC converter 120.
  • the DC power output from the battery BT and the DC power output from the DC generator 140 are converted into AC power by the bidirectional AC/DC converter 120, and the AC power is output from the bidirectional AC/DC converter 120.
  • AC power is supplied to the power system PS.
  • the battery BT housed in the housing unit 110 is discharged via the bidirectional AC/DC converter 120, and the DC generator 140 generates power.
  • FIG. 8 is a diagram showing the flow of power between the power system PS and the battery station 1 including the DC generator 140 when the power system PS is in a blackout state.
  • the DC generator 140 When the battery station 1 has the DC generator 140, if the power system PS is in a normal state, the power output from the DC generator 140 is supplied to the battery BT, and the power system PS is in a blackout state.
  • the DC generator 140 can be used like a hybrid generator by supplying the electric power output from the DC generator 140 to the power system PS.
  • FIG. 8 shows a state in which the battery BT housed in the housing unit 110 of the battery station 1 is fully charged (a state in which the power stored in the battery BT can be supplied to the power system PS). It is assumed that However, in reality, the amount of power stored in the battery BT housed in the housing unit 110 of the battery station 1 is below the threshold, and it is impossible to supply the power stored in the battery BT to the power system PS. It is also considered possible. In such a case, as shown in FIG. 9, control is performed so that (the DC power stored in) the battery BT accommodated in the accommodation unit 110 is not discharged, and the power is generated by the DC generator 140 and output. DC current is supplied to power system PS via bidirectional AC/DC converter 120 .
  • FIG. 9 includes the power system PS and the DC generator 140 when the power system PS is in a power failure state and the amount of electric power stored in the battery BT housed in the housing unit 110 is equal to or less than the threshold.
  • FIG. 9 is a diagram showing the flow of electric power to and from the battery station 1; FIG.
  • FIG. 10 is a diagram conceptually showing the flow of power among the power system PS, the DC generator 140, and the battery BT realized in this embodiment.
  • the battery BT when the power system PS is in the normal state, the battery BT is charged by supplying power from the power system PS to the battery BT.
  • the battery BT (the power stored in it) is discharged to supply power from the battery BT to the power system PS. It is also possible to supply the power generated by the DC generator 140 to the battery BT and the power system PS.
  • the battery station (e.g., 1) of the above embodiments includes: a housing portion (e.g., 110) that detachably houses a mobile battery (e.g., BT); AC power supplied from a power system (e.g., PS) is converted into DC power and supplied to the mobile battery accommodated in the accommodation section, and the DC power is stored in the mobile battery accommodated in the accommodation section.
  • a bi-directional AC/DC converter e.g., 120
  • a control unit for example, 130
  • the battery station can function as a backup power source in the event of a power failure in the power system.
  • the control unit eg, 130
  • the accommodation unit for example, 110
  • the mobile battery for example, BT
  • the mobile battery when the power system is in a normal state, the mobile battery is charged (power from the power system is supplied to the mobile battery), and when the power system is in a blackout state, the mobile battery is charged. It can discharge (supply (return) the power stored in the mobile battery to the power system).
  • the battery station mentioned above (eg 1), further comprising a generator (e.g., 140) connected between the accommodation unit (e.g., 110) and the bidirectional AC/DC converter (e.g., 120) for generating and outputting DC power;
  • the control unit (for example, 130) is characterized by controlling the supply destination of the DC power output from the generator according to the state of the power system (for example, PS).
  • the control unit e.g., 130 outputs from the generator (e.g., 140) when the power system (e.g., PS) is in a normal state capable of supplying AC power
  • a direct current is supplied to a mobile battery (eg, BT) accommodated in the accommodation section (eg, 110).
  • the bidirectional AC/DC converter (e.g., 120) converts the direct current output from the generator (e.g., 140) into alternating current power and supplies it to the power system (e.g., PS),
  • the control unit (for example, 130) outputs from the generator via the bidirectional AC/DC converter when the state of the power system is a power failure state in which AC power cannot be supplied. DC power supplied to the power system is supplied to the power system.
  • the generator can be used like a hybrid generator.
  • the control unit e.g., 130
  • the control unit is in a power failure state in which the power system (e.g., PS) cannot supply AC power, and is accommodated in the accommodation unit (e.g., 110)
  • the power is output from the generator (eg, 140) via the bidirectional AC/DC converter (eg, 120) DC power is supplied to the power system.
  • the generator (battery station) can function as a backup power source (generator).
  • the control method of the above-described embodiment includes: A storage unit (e.g., 110) that detachably stores a mobile battery (e.g., BT); a bidirectional AC/DC converter (e.g., 120) that supplies power to a battery and converts DC power stored in the mobile battery accommodated in the accommodation unit into AC power and supplies the AC power to the power system.
  • a method of controlling a battery station comprising: A step of controlling charging/discharging of the mobile battery housed in the housing section via the bi-directional AC/DC converter according to the state of the power system.
  • the battery station can function as a backup power source in the event of a power failure in the power system.
  • Battery station 110 Housing unit 120: Bi-directional AC/DC converter 130: Control unit 140: DC generator PS: Power system BT: Battery

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne une station de batterie caractérisée en ce qu'elle comprend : une unité de logement qui loge de manière fixe/amovible une batterie mobile ; un convertisseur CA/CC bidirectionnel qui convertit une puissance en courant alternatif fournie par un système d'alimentation en courant continu et fournit la puissance en courant continu à la batterie mobile logée dans l'unité de logement, et convertit la puissance en courant continu stockée dans la batterie mobile logée dans l'unité de logement en une puissance en courant alternatif et fournit la puissance en courant alternatif au système d'alimentation ; et une unité de commande qui commande la charge/décharge de la batterie mobile logée dans l'unité de logement par l'intermédiaire du convertisseur CA/CC bidirectionnel en fonction de l'état du système d'alimentation.
PCT/JP2021/035108 2021-09-24 2021-09-24 Station de batterie et procédé de commande WO2023047540A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/035108 WO2023047540A1 (fr) 2021-09-24 2021-09-24 Station de batterie et procédé de commande

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/035108 WO2023047540A1 (fr) 2021-09-24 2021-09-24 Station de batterie et procédé de commande

Publications (1)

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WO2023047540A1 true WO2023047540A1 (fr) 2023-03-30

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PCT/JP2021/035108 WO2023047540A1 (fr) 2021-09-24 2021-09-24 Station de batterie et procédé de commande

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011016273A1 (fr) * 2009-08-04 2011-02-10 日本電気株式会社 Système énergétique
JP2015015827A (ja) * 2013-07-04 2015-01-22 レスク株式会社 電動車両用バッテリ交換システム及びプログラム
WO2021132695A1 (fr) * 2019-12-27 2021-07-01 本田技研工業株式会社 Dispositif de commande, dispositif de charge, programme et procédé de commande

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011016273A1 (fr) * 2009-08-04 2011-02-10 日本電気株式会社 Système énergétique
JP2015015827A (ja) * 2013-07-04 2015-01-22 レスク株式会社 電動車両用バッテリ交換システム及びプログラム
WO2021132695A1 (fr) * 2019-12-27 2021-07-01 本田技研工業株式会社 Dispositif de commande, dispositif de charge, programme et procédé de commande

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