The invention relates to the technical field of rail transit, discloses a rail transit traction power supply system, a backflow circuit monitoring method and device and a medium, and is used for solving the problem that a maintainer cannot know the health state of a backflow circuit in time due to the lack of effective supervision on leaked current to ground and the backflow circuit. The rail transit traction power supply system comprises a backflow leakage monitoring device, the backflow leakage monitoring device comprises a comprehensive monitoring assembly and at least two one-way backflow detection circuits, the input end of each one-way backflow detection circuit is grounded, the output end of each one-way backflow detection circuit is electrically connected with a backflow rail, and the backflow leakage monitoring device is used for guiding leaked current to ground to the backflow rail; the output end of each one-way backflow detection circuit is electrically connected with the comprehensive monitoring assembly, and the comprehensive monitoring assembly judges whether earth current leakage exists or not according to the electrical signals of each one-way backflow detection circuit and determines the health state of each one-way backflow detection circuit according to the electrical signals of at least two one-way backflow detection circuits.

    本申请涉及轨道交通技术领域,公开了一种轨道交通牵引供电系统、回流电路监测方法、装置及介质,用于解决缺乏对泄漏的对地电流以及回流电路的有效监管,检修人员无法及时获悉回流电路的健康状态的问题。轨道交通牵引供电系统包括:回流泄漏监测装置包括综合监测组件和至少两个单向回流检测电路,每个单向回流检测电路的输入端接地,每个单向回流检测电路的输出端与回流轨电连接,用于将泄漏的对地电流导向至回流轨;每个单向回流检测电路的输出端与综合监测组件电连接,综合监测组件根据每个单向回流检测电路的电学信号判断是否存在对地电流泄漏,以及根据至少两个单向回流检测电路的电学信号确定每个单向回流检测电路的健康状态。


    Access

    Download


    Export, share and cite



    Title :

    Rail transit traction power supply system, backflow circuit monitoring method and device and medium


    Additional title:

    轨道交通牵引供电系统、回流电路监测方法、装置及介质


    Contributors:
    FAN FAN (author) / ZENG XIANGUANG (author) / XU WENLAI (author)

    Publication date :

    2024-12-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES




    Rail transit traction power supply system

    WANG GUOYING / ZHANG DONGHUI / DAI XIAOTONG | European Patent Office | 2020

    Free access

    Intercity rail transit traction power supply device

    JIANG WENBO | European Patent Office | 2020

    Free access

    Rail transit traction power supply anti-circulation method

    WU GAOFENG / LIU PENG / LU CHANGHUA et al. | European Patent Office | 2023

    Free access

    Rail transit power supply system based on traction network

    ZENG JIAN | European Patent Office | 2020

    Free access