电力系统及其自动化学报2019，Vol.31Issue(1)：12-18,46,8.DOI:10.19635/j.cnki.csu-epsa.000017
基于广义S变换和TEO的配电网故障定位方法
Fault Location Method for Distribution Network Based on Generalized S Transform and Teager Energy Operator
摘要
Abstract
Considering the problem that it is difficult to identify the wave head of a single phase-to-ground fault travel?ing wave because of short lines and too many branches in distribution network,a double-terminal traveling wave fault lo?cation method,which combines generalized S transform and Teager energy operator(TEO),is proposed to detect the wave head of fault traveling wave. First,as a starting point,the time resolution of the time-frequency analysis method is improved by generalized S transform. Then,energy feature extraction is performed by TEO to realize the accurate detec?tion of the traveling wave head,thus achieving the accurate fault location. Extensive simulation results show that this method can accurately detect the traveling wave head with higher location accuracy and stronger anti-noise property;therefore,its fault location capability is reliable.关键词
配电网/双端行波测距法/行波波头检测/广义S变换/Teager能量算子Key words
distribution network/double-terminal traveling wave location method/traveling wave head detection/gener⁃alized S transform/Teager energy operator(TEO)分类
信息技术与安全科学引用本文复制引用
刘文杰,舒勤,韩晓言..基于广义S变换和TEO的配电网故障定位方法[J].电力系统及其自动化学报,2019,31(1):12-18,46,8.基金项目
四川省科技支撑计划资助项目(2014GZ0083) （2014GZ0083）
