The application provides a direct-drive permanent magnet traction electric transmission system. The system comprises a converter unit used for converting pantograph-catenary electric energy into electric energy supplied by a motor through alternating current-direct current-alternating current conversion, a direct-drive permanent magnet synchronous motor used for converting the electric energy forsupplying power to the motor into kinetic energy, and an isolation unit that is arranged between the converter unit and the direct-drive permanent magnet synchronous motor and is used for isolating the converter unit from the direct-drive permanent magnet synchronous motor under a first preset working condition. According to the application, the direct-drive permanent magnet synchronous motor is adopted to realize the process of converting electric energy into kinetic energy; in order to convert electric energy into kinetic energy, the converter unit is added; meanwhile, the isolation unit isadded to protect a circuit, the direct-drive permanent magnet synchronous motor provides a traction force for the electric locomotive through the kinetic energy generated by the direct-drive permanentmagnet synchronous motor, and due to the fact that a direct-drive mode is adopted, a gearbox in the locomotive is omitted, mechanical losses are reduced, and the traction efficiency of the locomotiveis improved.

    本申请提供一种直驱永磁牵引电传动系统。该系统包括变流器单元,用于通过交‑直‑交的变换,将弓网电能转换成为电机供电的电能;直驱永磁同步电机,用于将所述为电机供电的电能转换为动能;隔离单元,设置在所述变流器单元和所述直驱永磁同步电机之间,用于在第一预设工况下,隔离所述变流器单元和所述直驱永磁同步电机。其中,本申请采用直驱永磁同步电机来实现电能转化为动能的过程,为了将电能转化为动能,增加了变流器单元,同时增加了隔离单元来保护电路,直驱永磁同步电机通过本身产生的动能为电力机车提供牵引力,因为采用直驱的模式,取消了机车中的齿轮箱,减少了机械损耗,提高了车辆的牵引效率。


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    Title :

    Direct-drive permanent magnet traction electric transmission system


    Additional title:

    直驱永磁牵引电传动系统


    Contributors:
    WANG BIN (author) / HE ZHIXUE (author) / ZHAN ZHEJUN (author) / ZHANG RUIFENG (author) / YU SENLIN (author) / ZHANG JIBIN (author) / DING ZHIYONG (author) / YU HUA (author)

    Publication date :

    2020-11-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B61C Lokomotiven , LOCOMOTIVES / 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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