电力系统保护与控制2011，Vol.39Issue(24)：22-27,34,7.
含分布式电源的配电网故障区间定位研究
Study of fault region locating method for distribution networks with distributed generators
摘要
Abstract
In order to locate the fault region for distribution networks with distributed generators rapidly, accurately and reliably, a new fault locating method based on wavelet transform technique is proposed. First of all, pretreat the fault current signal to distill the regulation at different fault types. Secondly, analyze the singularity of fault current signal using the wavelet transform and compare the singularity of different tier wavelet decomposition coefficient. Then find out the fault features of the coefficient to locate the fault. The simulation results show that this method is simple and able to accurately locate the fault at a high running speed in various fault modes and is free from the influence of the random factors such as fault transition resistance and so on.This work is supported by National Natural Science Foundation of China (No. 60971077) and Natural Science Foundation of Shandong Province(No.ZR2009FM061).关键词
分布式电源/配电网/故障区间定位/小波分析Key words
distributed generators/ distribution networks/ fault region location/ wavelet transform分类
信息技术与安全科学引用本文复制引用
徐子华,王艳松..含分布式电源的配电网故障区间定位研究[J].电力系统保护与控制,2011,39(24):22-27,34,7.基金项目
国家自然科学基金项目(60971077) （60971077）
山东省自然科学基金项目(ZR2009FM061) （ZR2009FM061）
