The invention provides a permanent magnet traction converter main circuit, a permanent magnet traction system and a vehicle traction system. The permanent magnet traction converter main circuit comprises a pre-charging circuit, a discharging circuit, an LC filter circuit, a brake chopper circuit, an intermediate DC breaking circuit, an inversion unit and a motor isolation circuit, and the LC filter circuit comprises a filter capacitor and a DC filter reactor. The pre-charging circuit and the discharging circuit are connected with the input end of the direct-current filter reactor, the output end of the direct-current filter reactor is connected with the input end of the brake chopper circuit, the output end of the brake chopper circuit is connected with the input end of the middle direct-current breaking circuit, and the output end of the middle direct-current breaking circuit is connected with the input end of the filter capacitor. The output end of the filter capacitor is connected with the input end of the inverter unit, and the motor isolation circuit is connected with the output end of the inverter unit. According to the invention, the fault unit can be broken when one group of inversion units breaks down, and the power redundancy of the permanent magnet traction system is improved.

    本发明提供一种永磁牵引变流器主电路、永磁牵引系统及车辆牵引系统,永磁牵引变流器主电路包括预充电电路、放电电路、LC滤波电路、制动斩波电路、中间直流分断电路、逆变单元和电机隔离电路,LC滤波电路包括滤波电容和直流滤波电抗器。预充电电路和放电电路与直流滤波电抗器的输入端连接,直流滤波电抗器的输出端与制动斩波电路的输入端连接,制动斩波电路的输出端与中间直流分断电路的输入端连接,中间直流分断电路的输出端与滤波电容的输入端连接,滤波电容的输出端与逆变单元的输入端连接,电机隔离电路与逆变单元的输出端连接。本发明能够在一组逆变单元发生故障时进行故障单元的分断,提高永磁牵引系统动力的冗余度。


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    Titel :

    Permanent magnet traction converter main circuit, permanent magnet traction system and vehicle traction system


    Weitere Titelangaben:

    永磁牵引变流器主电路、永磁牵引系统及车辆牵引系统


    Beteiligte:
    NING BO (Autor:in) / ZHAO ANDING (Autor:in) / PEI JIANHONG (Autor:in)

    Erscheinungsdatum :

    2021-05-25


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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 / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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