接触网故障测距实现方案分析

Analysis on Realization Scheme of OCS Fault Location

针对接触网短路故障测距问题,在基于阻抗算法的基础上提出了对测距方案的分析。提出的两种测距方案均是在现有装置的基础上实现的,一种方案是将采集的信号通过电缆传输,另一种方案是将采集的信号通过光纤传输。两种方案均能达到地铁直流供电系统接触网短路故障的测距效果,满足接触网短路故障测距的要求。这两种方案的提出,将测距算法理论应用于实践,奠定了方案基础,为实现缩短机车因接触网短路故障而停车的时间提供了可行的方法。

Aiming at the problem of short-circuit fault location of catenary,based on the impedance algorithm,the research on the location scheme was proposed.The two ranging schemes were implemented on the basis of the existing devices,one was to transmit the collected signal through cable,the other was to transmit the collected signal through optical fiber.The results show that the two schemes can achieve the effect of short-circuit fault location of Metro DC power supply system and meet the requirements of short-circuit fault location.These two schemes put the theory of ranging algorithm into practice,laid the foundation of the scheme,and provided a feasible method to shorten the parking time of locomotive due to the short circuit fault of catenary.