基于暂态量小波分析的矿井漏电保护选线  

Transient Component Selective Underground Leakage Protection based on Wavelet Analysis

作　　者：刘兴艳[1] 董洋[1] 

机构地区：[1]河南理工大学电气工程及其自动化学院,河南焦作454000

出　　处：《电子质量》2010年第2期34-36,共3页Electronics Quality

摘　　要：文章在分析电网发生单相接地时暂态特征的基础上,提出应用小波变换提取故障暂态信息。准确采样各线路暂态量,对采样暂态量进行小波变换,计算由小波系数构成的选线判据,实现故障选线的方法。经matlab进行故障仿真,表明该选线方法具有可行性,灵敏度高,选线准确等优点。The thesis proposes extract the fault transient information based On wavelet after analyzing the transient characteristics of single-phase ground occurred in underground high-voltage power network.it analysis the sampling transient component with wavelot transform, calculating selective judgments composed by wavelet coefficients. Fault simulation by matlab shows that the line selection method is the feasibility, high sensitivity, and accurate alignment

关 键 词：单相接地 小波 暂态分量 故障选线 

分 类 号：TM862[电气工程—高电压与绝缘技术]