Disclosed is a balancing apparatus capable of performing balancing without wasting power and of rapidly transmitting power. A battery stack balancing apparatus for balancing a battery stack including a plurality of battery modules connected to each other in series includes a series resonant circuit including a first capacitor and a first inductor connected to the first capacitor in series, a polarity change circuit including a second inductor and a polarity change switch connected to the second inductor in series so as to be selectively turned on or off, and connected to the first capacitor in parallel, a plurality of transmission lines having ends, respectively, electrically connected to a plurality of nodes provided at a low-potential end of the battery stack, at a high-potential end of the battery stack, and between the plurality of battery modules connected to each other in series, and other ends connected to the series resonant circuit, a plurality of transmission switches provided on the plurality of transmission lines so as to be selectively turned on or off, and a control unit configured to control the plurality of transmission switches and the polarity change switch.


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    Title :

    BATTERY STACK BALANCING APPARATUS


    Additional title:

    SYMMETRIERUNGSVORRICHTUNG FÜR EINE BATTERIE
    APPAREIL D'ÉQUILIBRAGE D'EMPILEMENT DE BATTERIES


    Contributors:

    Publication date :

    2021-02-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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