In a power supply system of the bidirectional direct-current charging pile, an alternating-current power supply module and a direct-current power supply module respectively provide a path of power supply opposite output to a power supply unit of a whole machine system; the alternating current power supply module also provides a path of power supply which is independently output to a power utilization system; moreover, the rated power of the AC power supply module is greater than the rated power of the DC power supply module, and the difference between the two is greater than a preset value. In other words, the part with the large power consumption demand in the power consumption system is independently provided by the alternating current power supply module. Even if the direct-current power supply module works, the part of power does not need to be provided, so that the conversion power is greatly reduced, the circuit of the power supply system can be simplified, and the redundancy, the cost and the size can be reduced. In addition, energy loss caused by forward power transmission of the main circuit from the alternating current port to the direct current port when the large power is provided by the direct current power supply module can be avoided, and the system efficiency is improved.

    本申请提供一种双向直流充电桩,其供电系统中,交流供电模块和直流供电模块分别提供一路供电对顶输出至整机系统供电单元;该交流供电模块还提供一路供电,独立输出至用电系统;而且,该交流供电模块的额定功率大于该直流供电模块的额定功率,且两者之差大于预设值;也即,用电系统中用电需求较大的部分由交流供电模块独立负责提供;即便直流供电模块工作时,也无需提供这一部分功率,大大减小其转换功率,使供电系统的电路可以简化,进而可以减少冗余,降低成本,减小尺寸。而且,还可省去较大功率由直流供电模块提供时主电路由交流端口到直流端口进行正向功率传输的能量损失,提高系统效率。


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    Title :

    Bidirectional direct current charging pile


    Additional title:

    一种双向直流充电桩


    Contributors:
    WANG TENGFEI (author) / LIU WEI (author) / LIU YING (author) / WU ZIQIANG (author)

    Publication date :

    2023-05-05


    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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