The invention discloses a self-checking device and method for a three-phase capacitor of a vehicle-mounted auxiliary converter, and the device comprises a current detection unit which is used for measuring the two-phase output current of the auxiliary converter; and the data acquisition unit is used for acquiring the starting instruction of the auxiliary converter, the state of the auxiliary load contactor and the two-phase output current of the auxiliary converter in real time. The invention provides a self-checking device and a self-checking method for a three-phase capacitor of a vehicle-mounted auxiliary converter, which can realize the automatic detection of the health state of the capacitance value of the three-phase capacitor, automatically and quickly isolate the auxiliary converter where an abnormal three-phase capacitor is located, prevent the abnormal three-phase capacitor from being put into work, and are safe, stable and reliable.

    本发明公开了一种车载辅助变流器三相电容器自检装置及自检方法,所述车载辅助变流器三相电容器自检装置包括:电流检测单元,所述电流检测单元用于测量辅助变流器两相输出电流;数据采集单元,所述数据采集单元用于实时采集辅助变流器的启动指令、辅助负载接触器状态以及辅助变流器两相输出电流。本发明提供一种车载辅助变流器三相电容器自检装置及自检方法,可以实现三相电容器容值健康状态自动检测,自动快速隔离异常三相电容器所在的辅助变流器,避免异常三相电容器投入工作,安全稳定可靠。


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    Title :

    Self-checking device and self-checking method for three-phase capacitor of vehicle-mounted auxiliary converter


    Additional title:

    一种车载辅助变流器三相电容器自检装置及自检方法


    Contributors:
    XIE XIANGXIANG (author) / ZHAO HAILONG (author) / WU QINGFENG (author) / FU YALIN (author) / TONG TONG (author) / NI ZHENGLONG (author)

    Publication date :

    2023-02-28


    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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