The invention discloses a train power supply system and method. Under the electrified railway condition, high-voltage alternating current obtained from a pantograph is converted into low-voltage alternating current through a traction transformer; power is provided for electric equipment of a train after rectification of a rectification unit, voltage stabilization of a direct current supporting capacitor, inversion of an inversion unit and isolation filtering of an isolation filtering unit; meanwhile, an alternating current provided by the isolation filtering unit can be rectified through the bidirectional rectification inversion unit to charge the storage battery pack; under the condition of no electrified railway, the storage battery pack is used for discharging, and the alternating current is provided for electric equipment of the train after inversion of the bidirectional rectification inversion unit. Continuous power supply for the train is achieved, an air-conditioning generator car does not need to be additionally arranged, and then problems that the train cost is high due to the fact that the air-conditioning generator car is additionally arranged, the environment pollution is serious due to the fact that the air-conditioning generator car supplies electric energy through diesel combustion, and potential safety hazards are caused by diesel leakage are solved.

    本申请公开了一种列车供电系统及方法,在电气化铁路条件下通过牵引变压器将从受电弓获取到的高压交流电转换为低压交流电,并通过整流单元的整流、直流支撑电容的稳压、逆变单元的逆变以及隔离滤波单元的隔离滤波后为列车用电设备供电,并同时可通过所述双向整流逆变单元对隔离滤波单元提供的交流电进行整流后为所述蓄电池组充电;在无电气化铁路条件下通过蓄电池组放电并经过双向整流逆变单元的逆变后为列车用电设备提供交流电。实现了为列车持续供电,而不需要额外增设一节空调发电车,进而解决了增设空调发电车导致列车成本高,且空调发电车是借助柴油燃烧提供电能,导致环境污染严重并且存在柴油泄漏导致安全隐患的问题。


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    Title :

    Train power supply system and method


    Additional title:

    一种列车供电系统及方法


    Contributors:
    PENG ZIJIAN (author) / CHEN XIANG (author) / FAN BIN (author) / LIN WENBIAO (author) / FENG QIUSHI (author) / YI WANCHENG (author) / LIU QIANGQIANG (author) / JIANG XINGYOU (author)

    Publication date :

    2021-05-18


    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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