复用式多型行波技术的高速电气化铁路接触网故障测距研究  

Research on Fault Location of High-speed Electrified Railway Contact Network Based on Multiplex Traveling Wave Technology

作　　者：邓建峰[1] 

机构地区：[1]郑州铁路局新乡供电段,河南新乡453000

出　　处：《铁道机车车辆》2017年第2期57-67,共11页Railway Locomotive & Car

摘　　要：准确的测量高速电气化铁路接触网线路故障点的位置,不仅对牵引供电系统具有重要意义,而且也对铁路运输具有重要影响。根据行波传输理论以及行波测距的特点,研究一种A/C/D/E多型行波复用式测量接触网故障的测距方法,并结合小波分析、求导算法、改进型求导算法、模极大值法等综合分析不同方式的行波法测距结果,实现对故障行波与干扰行波的准确识别,提高了接触网线路发生故障时的精确定位。经模拟试验、现场测试、实时在线运行,通过故障行波测距装置对实际故障点的定位情况及波形分析,验证了该技术在高速电气化铁道接触网故障测距定位的实际使用效果。且不受接触网短路型式的影响,定位准确,精度能够得以保证。It is not only important for traction power supply system, but also has an important influence on railway transportation to ac- curately measure the position of the fault point of catenary of high speed electrified railway. According to the traveling wave transmission theory and characteristics of traveling wave ranging method, network fault of a A/C/I）/E type traveling wave multiplexing contact measuring, combined with wavelet analysis and derivation algorithm, improved algorithm derivation, modulus maximum distance meas- uring results of traveling wave method of comprehensive analysis in different ways, to achieve accurate identification of fault and disturbance traveling wave, improve the precise positioning of Catenary line fails. Through the simulation test and field test, real-time on- line operation, positioning and waveform by fault location device for actual fault analysis, verify the practical effects of the catenary fault location in high-speed electrified railway. The utility model is not affected by the short circuit of the contact network, and the positioning accuracy can be ensured.

关 键 词：高速电气化铁路 故障测距 复用式 多型行波 

分 类 号：U226.8[交通运输工程—道路与铁道工程]