The invention provides a contactor fault early warning method and related device. The method is applied to a PHM device of a contactor and comprises the steps that firstly, issuing an action instruction, controlling the on-off state of the contactor, and then monitoring and recording operation parameters of the contactor in real time; processing the operation parameters to obtain actual values of the contact action process parameters of the contactor; according to the operation parameters, adopting a preset algorithm model to calculate and obtain contact action process parameter theoretical values of the contactor; and finally, performing difference judgment on the actual value of the contact action process parameter and the theoretical value of the contact action process parameter to obtain a contact early warning result of the contactor, and compared with the prior art that the fault problem of the contactor can be diagnosed only after the fault occurs and the operation of the locomotive vehicle is influenced, the method can perform detection in advance. Therefore, early fault diagnosis of the contactor can be realized.
本发明提供一种接触器故障预警方法及相关装置,该方法应用于接触器的PHM装置,该方法首先下发动作指令、控制接触器的开关状态,然后实时监测并记录接触器的运行参数;进而通过对运行参数进行处理,得到接触器的触头动作过程参数实际值;并根据运行参数,采用预设算法模型,计算得到接触器的触头动作过程参数理论值;最后通过对触头动作过程参数实际值和触头动作过程参数理论值进行差异性判断,得到接触器的触头预警结果,相较于现有技术只能在发生故障、影响机车车辆运行后,才能诊断出接触器存在的故障问题,本申请能够提前检测,也即本申请能够实现对接触器的早期故障诊断。
Contactor fault early warning method and related device
接触器故障预警方法及相关装置
2021-05-25
Patent
Electronic Resource
Chinese
IPC: | B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC |
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