An embodiment of the present application discloses a charging method, including: acquiring a state parameter of a power battery by a power conversion apparatus, the state parameter including a battery temperature; setting a charging mode to a pulse charging mode by the power conversion apparatus when the battery temperature is lower than a first preset threshold; and converting charging power of a charging pile and then charging the power battery by the power conversion apparatus in the pulse charging mode, the pulse charging mode being a charging mode outputting a pulsed voltage or a pulsed current. Through the technical solution, the power conversion apparatus acquires a battery temperature of the power battery, when the battery temperature is lower than the first preset threshold, the power conversion apparatus converts the charging power output by the charging pile, and outputs a pulse current to charge the tract battery, to prevent the charging pile directly charging the power battery in a low temperature and impact on the performance of the power battery, thereby ensuring the performance of the power battery.


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    Title :

    CHARGING METHOD AND POWER CONVERSION DEVICE


    Additional title:

    LADEVERFAHREN UND LEISTUNGSWANDLERVORRICHTUNG
    PROCÉDÉ DE CHARGE ET DISPOSITIF DE CONVERSION DE PUISSANCE


    Contributors:
    LI ZHANLIANG (author) / DAN ZHIMIN (author) / YAN YU (author) / SUN WEIPING (author) / XIONG SHUYUN (author)

    Publication date :

    2022-10-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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



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