The invention provides a bidirectional vehicle-mounted charger, a vehicle-mounted power system and an electric vehicle, the bidirectional vehicle-mounted charger comprises a direct current bus, two bus capacitors, a power factor correction circuit and a controller, the power factor correction circuit comprises a first bridge arm, a second bridge arm, a third bridge arm and a fourth bridge arm, the middle point of the first bridge arm is connected with a series connection point of the two bus capacitors through the first switch; and the three second bridge arms are respectively connected in series between the anode and the cathode of the direct-current bus. The controller is used for controlling the first switch to be switched off and controlling the at least one second bridge arm to output direct current to charge the power battery; and controlling the first switch to be switched on, and controlling the midpoint of the at least one second bridge arm to output alternating current to supply power to an alternating current load. In the application, a forward charging function for charging the power battery and a reverse discharging function for supplying power to the alternating current load can be compatible, the circuit cost is greatly reduced, the application flexibility is high, and the applicability is high.

    本申请提供了一种双向车载充电机、车载动力系统及电动车辆,双向车载充电机包括直流母线、两个母线电容、功率因数校正电路和控制器,其中功率因数校正电路包括:第一桥臂,串联于直流母线的正负极之间,第一桥臂的中点通过第一开关连接两个母线电容的串联连接点;三个第二桥臂,分别串联于直流母线的正负极之间。控制器,用于:控制第一开关断开,并控制至少一个第二桥臂输出直流电为动力电池充电;控制第一开关导通,并控制至少一个第二桥臂的中点输出交流电为交流负载供电。在本申请中,可兼容对动力电池充电的正向充电功能以及对交流负载供电的逆向放电功能,大幅度降低了电路成本,运用灵活性强,适用性强。


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    Title :

    Bidirectional vehicle-mounted charger, vehicle-mounted power system and electric vehicle


    Additional title:

    双向车载充电机、车载动力系统及电动车辆


    Contributors:
    LIANG ZHIGANG (author) / MENG YUANDONG (author) / NI HUI (author)

    Publication date :

    2022-10-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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