基于小波分析的弱电源侧暂态量选相方案  

Transient energy fault phase selecting scheme on the weak feed backside of transmission line based on wavelet analysis

作　　者：李峰[1] 焦彦军[1] 马静[1] 

机构地区：[1]华北电力大学电力系统保护与动态安全监控教育部重点实验室,河北保定071003

出　　处：《继电器》2006年第1期1-4,14,共5页Relay

摘　　要：针对输电线路弱馈侧选相问题,在分析各种故障类型模分量特征的基础上,通过对输电线路各种短路故障情况进行分析,提出了弱电源侧故障选相原理和算法,该原理基于模量小波分析能量特征。并经过仿真计算和数据的验证表明该选相原理的正确性,能满足现场弱馈选相的要求,从而有效地解决了弱电源侧的选相问题。This paper is to solve problem of fault phase selecting on the weak feed backside of transmission line. Based on the results of various model component analysis, it analyzes differernt short faults of transmission line and proposes an efficient principle and algorithm to determine the fault phase on weak feed side. The principe is based on model component analysis. The ATP simulation calculation and the data certification show that the principle is correct and can meet the requirement of phase-selection on the weak feed backside to effectively resolve problem of fault phase selecting.

关 键 词：小波分析 弱电源 故障选相 暂态量 

分 类 号：TM711[电气工程—电力系统及自动化] TM77