基于静态小波变换的T型输电线路行波测距方法OA北大核心CSCDCSTPCD
Travelling Wave Fault Location for Three-Terminal Transmission ~Line Based on Static Wavelet Transform
针对现有T型输电线路行波测距算法易受行波波速影响的不足，提出一种新的T型输电线路行波测距方法。采用Clarke变换将相电流转换为独立的模电流，对模电流进行静态小波变换（staticwavelettransform，SwT）处理，实现各行波浪涌到达各母线端时刻的标定。首先利用首波头到达三端母线的3个初始时刻定义隶属度，给出利用隶属度实现故障支路判别的判据。运用已有的两端测距公式推导三端测距公式，实现T型线路故障点测距。研究了T节点附近的3种可能性故…查看全部>>
In view of the defect in existing travelling wave fault location algorithm that this algorithm is easily affected by wave velocity, a new method for travelling wave fault location of three-terminal transmission line is proposed. Using Clarke＇s transform the phase currents are turned into independent mode currents, then static wavelet transform （SWT） is applied to mode currents to determine the moments at which travelling wave surges arrive the bus terminals.…查看全部>>
张永健;胥杰;孙嘉
上海电力学院电力与自动化工程学院,上海市杨浦区200090上海电力学院电力与自动化工程学院,上海市杨浦区200090上海电力学院电力与自动化工程学院,上海市杨浦区200090
信息技术与安全科学
T型输电线路相模变换静态小波变换故障支路判别故障测距
three terminal transmission linephase-modetransformationstatic wavelet transform (SWT)distinguishingfaulty branchfault location
《电网技术》 2012 (6)
84-88,5
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