电测与仪表Issue(1)：40-42,70,4.
基于S变换的行波法高压输电线路故障定位
Traveling Wave Fault Location Method for High Voltage Power Transmission Lines Based on S-transform
摘要
Abstract
S-transform can be independently used to analyze the amplitude variation of the signal on each frequency component. The moment of saltation in the signal can be determined by observing the amplitude and frequency charac-teristics of transient traveling waves, and the fault location of power transmission lines can be achieved. It is necessary to collect synchronously the voltage signals by GPS at both ends of the transmission lines before and after the fault hap-pened. Amplitude-time curve, which shows the amplitude saltation points, can be obtained by S-transform. Simula-tion results show that this method can precisely grab the arrival time of the wave head with high accuracy.关键词
输电线路/行波/S变换/故障定位/GPSKey words
power transmission lines/traveling wave/S-transform/fault location/GPS分类
信息技术与安全科学引用本文复制引用
李志斌,许云辉,吴宝兴,王挺..基于S变换的行波法高压输电线路故障定位[J].电测与仪表,2014,(1):40-42,70,4.基金项目
上海市电站自动化技术重点实验室资助项目 （）
