The invention discloses a power supply converter, a charger, a charging system and a charging method. The power supply converter comprises a power factor correction PFC circuit, a DC bus capacitor, apower conversion circuit and a controller. The first end of the PFC circuit is used for being connected with an alternating current, the second end of the PFC circuit is used for being connected withthe first end of the power conversion circuit, and the direct current bus capacitor is connected to the second end of the PFC circuit in parallel. The power conversion circuit is used for converting the electric energy provided by a device under the control of the controller and then charging the direct-current bus capacitor, and the controller is used for controlling the power conversion circuitto convert the electric energy provided by the device before the first end of the PFC circuit is connected with the alternating current and then charging the direct current bus capacitor. According tothe power converter, the hardware device, such as a pre-charging circuit, etc., does not need to be additionally arranged, the size of the power converter is reduced, and the production cost of the power converter is reduced.

    本申请公开了一种电源变换器、充电机、充电系统及方法,该电源变换器包括:功率因数校正PFC电路、直流母线电容、功率变换电路和控制器;PFC电路的第一端用于连接交流电,PFC电路的第二端用于连接功率变换电路的第一端,直流母线电容并联在PFC电路的第二端;功率变换电路,用于在控制器的控制下将设备提供的电能转换后给直流母线电容充电;控制器,用于在PFC电路的第一端接通交流电之前控制功率变换电路将设备提供的电能转换后给直流母线电容充电。该电源变换器无需额外增加预充电路等硬件设备,减小了电源变换器的体积以及降低了电源变换器的生产成本。


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    Title :

    Power converter, charger, charging system and method


    Additional title:

    一种电源变换器、充电机、充电系统及方法


    Contributors:
    ZHANG WEI (author) / CHENG YANG (author) / CUI ZHAOXUE (author)

    Publication date :

    2020-08-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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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