基于能量比法识别波头的AT牵引网故障行波测距研究  

Study of Contact System Fault Location based on Energy Ratio Method

作　　者：牛琼[1] 李东辉[1] 李诗涵 

机构地区：[1]大连交通大学电气信息学院,辽宁大连116028 [2]杭州迪普科技有限公司,北京100085

出　　处：《大连交通大学学报》2017年第2期99-103,共5页Journal of Dalian Jiaotong University

摘　　要：针对AT供电方式牵引网的故障定位问题,提出了一种新的基于能量比法的故障测距算法,目标在于提高故障测距精度,缩短定位时间,满足高速铁路列车的应用需求.利用MATLAB软件建立了AT供电方式下的某牵引网结构的仿真模型,并对故障测距算法进行了仿真验证.仿真结果表明:与在变电所调研的故障测距结果相比,误差小于变电所中故障测录仪获得的故障测距误差,定位时间较短,故障测距精度提高,这为后续相关研究及探索奠定了重要基础.Aiming at fault location problem of the traction electric network in AT power supply mode, a new fault location algorithm of the traction network in AT power supply based on the energy ratio method was put forward, and aimed to improve the precision of fault location and shorten the fault positioning time so as to meet the application demand of the high-speed locomotives. The simulation model of a traction electric network structure in AT power supply mode is established using MATLAB software, and the fault location algorithm was simulated and verified. Simulation result show that the fault location error is less than the measured fault loca- tion error in substation, and the positioning time is shorter, and the accuracy of fault location is improved.

关 键 词：AT供电 故障测距 能量比法 算法 

分 类 号：U226[交通运输工程—道路与铁道工程]