摘要
传统动车内部线缆导通性的测试费时费力,增加了误检的概率,严重影响动车线缆检测结果的准确性、可靠性,极大降低了动车在行驶过程中的安全稳定性。基于开尔文四线检测电阻法对动车线缆的导通电阻进行测量,确定是否存在断线或短路故障;针对检测出的故障线缆,基于时间反演法对故障点进行精准定位,同时利用Matlab/Simulink进行仿真试验,验证了所提故障定位方法的准确性。在此基础上研制了动车线缆导通性自动测试系统,并进行了现场应用,测试试验结果表明,导通性自动测试系统测试速度快、准确性高、操作方便、可显著提高工作效率。
The test of the internal cable conductivity of the traditional bullet train is time-consuming and laborious,which increases the probability of false detection,seriously affects the accuracy and reliability of cable detection results of bullet trains,and greatly reduces the safety and stability of bullet trains during running. Based on the Kelvin four-wire detection resistance method,the on-resistance of the bullet train cable was measured to determine whether there was a wire break or short circuit fault. For the detected fault cable,the fault point was precisely located based on the time inversion method. Meanwhile,Matlab/Simulink was used for simulation test to verify the accuracy of the fault location method proposed. Based on these above,the automatic test system for cable conductivity of bullet train was developed and applied in the field. The test results show that the automatic test system is fast,accurate,easy to operate and can significantly improve work efficiency.
作者
牛胜锁
武哲男
黄胜坡
NIU Shengsuo;WU Zhenan;HUANG Shengpo(School of Electrical and Electronic Engineering,North China Electric Power University(Baoding),Baoding 071000,Hebei,China;CRRC Qingdao Sifang Co.,Ltd.,Qingdao 266111,Shandong,China.)
出处
《电气传动》
2022年第11期75-80,共6页
Electric Drive
基金
国家重点研发计划项目(2017YFB0902901)。
关键词
线缆导通性
开尔文四线检测法
时间反演法
故障定位
装置研发
cable conductivity
Kelvin four-wire test method
time inversion method
fault location
device development
