The invention belongs to the technical field of train traction systems, and relates to a train traction system brake resistor abnormity monitoring method and device. The method comprises the following steps: constructing a brake resistor state normal R/T curve belt during simulated operation of a train, and monitoring the brake resistor state in real time during actual operation of the train; the step of building the brake resistor state normal R/T curve band comprises the substeps that the resistance value Ri of a brake resistor is obtained, a thermal resistance model of the brake resistor is obtained to predict the temperature Ti of the brake resistor at the moment corresponding to the Ri, and the (Ri, Ti) data set is used for building the brake resistor state normal R/T curve band; the real-time monitoring of the state of the brake resistor comprises the steps of obtaining real-time state parameter coordinate points (Ra and Ta) of the brake resistor, judging whether the (Ra and Ta) are located in a normal R/T curve band of the state of the brake resistor or not, and if not, automatically triggering abnormal early warning. According to the invention, the problem that the abnormal condition of the brake resistor cannot be accurately identified only by a single state parameter at present is solved, and whether the brake resistor is abnormal or not can be timely and accurately monitored.

    本发明属于列车牵引系统技术领域,涉及一种列车牵引系统制动电阻异常监测方法及装置。该方法包括在列车模拟运行时构建制动电阻状态正常R/T曲线带、在列车实际运行时进行制动电阻状态实时监测;构建制动电阻状态正常R/T曲线带包括,获取制动电阻阻值Ri,获取制动电阻热阻模型以预测与Ri对应时刻下的制动电阻温度Ti,利用(Ri,Ti)数据集构建制动电阻状态正常R/T曲线带;制动电阻状态实时监测包括,获取制动电阻实时状态参数坐标点(Ra,Ta),判断(Ra,Ta)是否位于制动电阻状态正常R/T曲线带内,若否,自动触发异常预警。本发明解决了目前仅依靠单一状态参数不能准确识别制动电阻异常情况的问题,能够及时准确地监测到制动电阻是否出现异常。


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    Title :

    Method and device for monitoring abnormity of brake resistor of train traction system


    Additional title:

    一种列车牵引系统制动电阻异常监测方法及装置


    Contributors:
    CAO HU (author) / WANG MENGQIAN (author) / ZHAO LIWEI (author) / WANG LEI (author)

    Publication date :

    2023-11-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01K MEASURING TEMPERATURE , Messen der Temperatur



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