轨道交通高压电缆线路在线监测方案研究

阐述了现阶段城市轨道交通高压电缆线路故障监测存在的问题及难点,以行波法故障测距为基础,构造了轨道交通高压电缆线路在线监测方案及其故障启动逻辑,设定了故障测距算法,描述了高压电缆故障监测的主要技术、故障判定逻辑和故障定位方法。该方案具有良好的适应性与电缆全线状态监测的可预测性,为轨道交通高压电缆线路在线监测方案研究提供参考。

The paper illustrates the problems and difficulties in fault monitoring of high-voltage cable lines in urban rail transit at present.Based on the traveling wave fault location method,an online monitoring scheme for high-voltage cable lines in rail transit and its fault initiation logic are constructed.The fault location algorithm is set up,and the main techniques,fault judgment logic,and fault location method for high-voltage cable fault monitoring are described.The scheme has good adaptability and predictability in monitoring the status of the entire cable line,providing reference for the research of online monitoring schemes for high-voltage cable lines in urban rail transit.