基于双端电气量的高速铁路故障测距方法研究  

Study of fault location method of high-speed railway using two-terminal electrical quantities

作　　者：陈民武[1] 崔召华 高鸿阁 马庆安[1] 易东[1] 沈涛 

机构地区：[1]西南交通大学电气工程学院,四川成都610031 [2]大秦铁路股份有限公司太原供电段,山西太原030013

出　　处：《铁道科学与工程学报》2017年第10期2033-2042,共10页Journal of Railway Science and Engineering

基　　金：国家自然科学基金资助项目(51307143);中国铁路总公司重点科技项目(2015J005-A);中央高校基本科研业务费专项资金科技创新项目(2682015CX033)

摘　　要：在牵引网分段供电技术基础上,提出基于双端电气量的高速铁路牵引网故障测距方法。采用广义对称分量法,通过建立牵引网复合序网模型,分析短路阻抗特性,绘制出AT牵引网测量阻抗特性曲线,给出故障测距算法与实现流程。仿真结果表明,与既有方案相比,该测距方法有效且测距精度高,为现有高速铁路牵引网故障测距提供了新途径。All paralleling AT power supply scheme has been widely used in high-speed railway in China due tolots of advantages. The fault location is the key problem in practical application and how to improve the accuracyof fault location has drawn more and more attention. Based on the segmented power supply technology fortraction network, the fault location method of high-speed railway traction network using two-terminal electricalquantities was proposed in this paper. By virtue of the generalized method of symmetrical components, thesequence network model of traction network was established and the characteristics of short circuit impedancewere analyzed. Furthermore, the impedance characteristic curves of AT traction network were presented and theprocess of fault location was illustrated. Simulation results indicate that the method proposed is efficient and hashigher accuracy compared with the existing schemes, which can be used in traction network fault location for highspeed railway.

关 键 词：牵引网 故障测距 广义对称分量法 分段供电 仿真 

分 类 号：U229[交通运输工程—道路与铁道工程]