The invention relates to the technical field of charging systems, and particularly discloses a high-power direct-current charging system which comprises a multi-secondary-side winding transformer anda plurality of charging devices, the secondary side of the multi-secondary-side winding transformer is connected with a plurality of AC/DC converters, one end of each AC/DC converter is electrically connected with the secondary side of the multi-secondary-side winding transformer, and the other end of the AC/DC converter is connected with a plurality of DC/DC converters, and the DC/DC converters are arranged in the charging equipment. According to the invention, the function of quickly charging the power receiving terminals with different requirements can be realized without switching an output switch and connecting different modules in parallel or bypassing, the stacking number of the charging pile modules is reduced, a power switching unit of the existing charging system is reduced or even removed, the complexity of the charging system is reduced, and the charging efficiency is improved. The size and the cost of the charging pile are reduced, and the maintenance difficulty of the charging pile is improved.

    本发明涉及充电系统技术领域,具体公开了一种大功率直流充电系统,包括多副边绕组变压器以及若干个充电设备,所述多副边绕组变压器的副边连接有若干个AC/DC变换器,所述AC/DC变换器的一端与所述多副边绕组变压器的副边电连接,所述AC/DC变换器的另一端连接有若干个DC/DC变换器,所述DC/DC变换器设置于所述充电设备内。本发明无需经过输出开关的切换以及将不同的模块并联或者旁路,就能实现对不同要求的受电终端进行快速充电的功能,减少了充电桩模块的堆叠数量,减少甚至去除了已有充电系统的功率切换单元,减少了充电系统的复杂度,降低了充电桩的体积和成本,改善了充电桩的维护难度。


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    Title :

    High-power direct-current charging system


    Additional title:

    一种大功率直流充电系统


    Contributors:
    LI YAN (author)

    Publication date :

    2021-01-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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