The invention provides a fault protection method and device for a train traction motor and a train, and can be applied to the technical field of vehicle control. The method comprises the following steps: acquiring current signals and voltage signals of three phases in the traction motor, wherein the three phases are three alternating current phases flowing through a stator winding of the traction motor; based on the current phase information of the current signals of the three phases and the voltage phase information of the voltage signals of the three phases, fault detection is carried out on the traction motor, and a detection result is obtained; under the condition that the detection result shows that the traction motor has a fault, the working states of a traction converter and a coupling are controlled, the working state of the coupling represents the mechanical connection condition of the traction motor driving the train to run, and the working state of the traction converter represents the power supply condition of the train running; the coupling is used for mechanically connecting the traction motor and the train gearbox, and the traction converter is electrically connected with the traction motor, so that the traction motor drives a gear in the train gearbox to rotate, and a train is driven to run.

    本公开提供了一种列车牵引电机的故障保护方法、装置及列车,可以应用于车辆控制技术领域。该方法包括:获取牵引电机中三相各自的电流信号和电压信号,三相是流经牵引电机机的定子绕组的三个交流电相;基于三相各自的电流信号的电流相位信息和三相各自的电压信号的电压相位信息,对牵引电机进行故障检测,得到检测结果;在检测结果表征牵引电机存在故障的情况下,控制牵引变流器和联轴节的工作状态,联轴节的工作状态表征牵引电机驱动列车运行的机械连接情况,牵引变流器的工作状态表征列车运行的供电情况,联轴节用于将牵引电机和列车齿轮箱机械连接起来,牵引变流器与牵引电机电连接,以使牵引电机带动列车齿轮箱中齿轮转动,驱动列车运行。


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    Title :

    Fault protection method and device for train traction motor and train


    Additional title:

    列车牵引电机的故障保护方法、装置及列车


    Contributors:
    JU CHANGLEI (author) / LIU JIANCHENG (author) / SUN CHUANMING (author) / LIU YAYUN (author) / TIAN QING (author)

    Publication date :

    2024-09-03


    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



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