故障性质对高速铁路牵引网行波测距的影响  

Fault Nature Effect on Traveling Waveform of High-speed Railway Fault Location

作　　者：汪志成[1] 周书民[1] 吴仲郎[1] 鲍廷义[1] 

机构地区：[1]东华理工大学机械与电子工程学院,江西南昌330013

出　　处：《东华理工大学学报（自然科学版）》2014年第1期91-95,共5页Journal of East China University of Technology(Natural Science)

摘　　要：基于C型行波法原理搭建模拟实验线路,分析故障性质对于行波测距波形的影响.模拟实验时,在不同电压等级下获取了接地和开路故障时的行波信号数据,实验数据分析结果显示,在接地故障情况下,放电电压在3～ 10 kV范围内变化时,最大幅值点对应的频率值基本没有变化,维持在14.663 kHz;在开路故障情况下,放电电压在5.7～8 kV范围内变化时,最大幅值点对应的频率值发生了较明显的变化,但基本维持在300kHz以上.Fault nature effect on traveling waveform of high-speed railway fault location has been studied by analog experiment based on C-type traveling wave method. Traveling wave signal on different discharge voltage level has been acquired both for grounding and open circuit situation. The result shows： on the grounding situation, the spectrum doesnot change obviously when the discharge voltage change from 3 kV to 10 kV, which maintain 14. 663 kV ; on the open circuit situation, the spectrum changed when the discharge voltage change from 5.7 kV to 8 kV, but it is always higher than 300 kHz.

关 键 词：C型行波法 故障性质 频谱分析 

分 类 号：TM743[电气工程—电力系统及自动化]