基于高频暂态的复杂接触网故障测距研究与仿真  

Research and Simulation of Complex Catenary Fault Location Based on High-Frequency Transient

作　　者：陈楚楚 毛弥卉 黎萱 CHEN Chu-chu;MAO Mi-hui;LI Xuan(China Railway Shanghai Design Institute Group Co.,Ltd,Shanghai 200070,China)

机构地区：[1]中铁上海设计院集团有限公司,上海200070

出　　处：《电工电气》2024年第8期48-53,共6页Electrotechnics Electric

摘　　要：接触网线路在发生故障时快速进行故障点清除对于保障高速列车的稳定运行至关重要。分析了传统的接触网故障测距方法以及测距方法中存在的问题,提出了一种适用于复杂线路的高频暂态故障测距方法,该方法在进行接触网故障测距时,采用接触网线路参数模型确定波速度以及合适的数学方法查找波头,可实现主支线故障区分。选取上海铁路局某复杂自耦变压器(AT)供电线路进行仿真验证,仿真结果表明,基于高频暂态的复杂接触网故障测距方法具有良好的系统适应性,为复杂结构的供电线路故障测距提供了理论依据。It is very important to clear the fault point quickly when the catenary line breaks down to ensure the stable operation of highspeed train.This paper analyzes the existing problems of traditional fault location method for catenary and ranging method,a high-frequency transient fault location method that applys for complex circuits is put forward,when this method is in contact line fault location,it uses catenary line parameter model to comfirm wave speed and searches wave head by proper mathematical methods,then main branch fault classification is realized.A complex auto-transformer(AT)power supply line is selected for simulation verification,the simulation results show that the complex catenary fault location method based on high-frequency transientt has good system adaptability and provides a theoretical basis for the fault location of complex power supply lines.

关 键 词：接触网 故障测距 复杂结构 高频暂态 AT供电 直供线路 

分 类 号：TM721.3[电气工程—电力系统及自动化]