电测与仪表Issue(16)：84-87,4.
基于小波变换的矿井电网故障行波定位
Traveling wave fault location of underground power grid based on the wavelet transform
摘要
Abstract
In view of the cable grounding short circuit fault caused by mal-condition in coal mine, this paper analyzes the timely discovery of the fault point is of great importance to coal mine power supply security, then traveling-wave based fault location which has been widely used in large power system is introduced into the underground circuit fault positioning, the single-ended fault location algorithm is improved according to the actual situation and the feature in-formation of the fault travelling wave is extracted using wavelet transform, and through the calculation of modulus max-ima of wavelet coefficient to confirm the breakpoint of the signal.Simulation examples show that this method can real-ize relatively accurate position of the underground power grid fault.关键词
短路故障/井下电网/行波测距/小波变换Key words
short-circuit fault/underground power grid/travelling wave fault location/wavelet transform分类
信息技术与安全科学引用本文复制引用
王玉娟,钱平,叶银忠..基于小波变换的矿井电网故障行波定位[J].电测与仪表,2015,(16):84-87,4.基金项目
国家自然科学基金资助项目 （）
