The invention relates to the technical field of rail transit, and discloses a train power supply system. The system comprises an L-phase branch unit, the L-phase branch unit comprises a contactor connected with a secondary winding L of a train main transformer and an external socket connected with a passenger car compartment load L, and the contactor is connected with the external socket in series; one end of the N-phase branch unit is connected with a secondary winding N phase of the train main transformer, and the other end of the N-phase branch unit is grounded; and the power supply acquisition unit comprises a voltage transformer connected between the L-phase branch unit and the N-phase branch unit and a current transformer connected in the N-phase branch unit so as to respectively acquire corresponding voltage and current signals. According to the scheme, the alternating current provided by the train power supply secondary winding is used for supplying power to the carriage load of the passenger car, meanwhile, the structural design is simple, and practical application is facilitated.

    本发明涉及轨道交通技术领域,公开了一种列车供电系统。该系统包括:L相支路单元,所述L相支路单元包括与列车主变压器的次边绕组L相连接的接触器,以及与客车车厢负载L相连接的外接插座,所述接触器与所述外接插座串联连接;N相支路单元,所述N相支路单元的一端与所述列车主变压器的次边绕组N相连接,另一端接地;供电采集单元,所述供电采集单元包括连接在所述L相支路单元与所述N相支路单元之间的电压互感器和连接在所述N相支路单元中的电流互感器,以分别采集对应的电压及电流信号。本发明的方案实现了通过列车供电次边绕组提供的交流电为客车车厢负载供电,同时结构设计简单,有利于实际应用。


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    Title :

    Train power supply system


    Additional title:

    一种列车供电系统


    Contributors:
    ZHANG LIANGLIANG (author) / CHEN YUYANG (author) / ZHANG NING (author) / WANG RAN (author) / LI WENBO (author) / LIU MENGQI (author) / CHEN XU (author) / SUI YANXIN (author) / ZHANG JINYANG (author) / ZHENG TIANXIANG (author)

    Publication date :

    2025-02-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen



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