摘要
小电流接地系统在单相接地故障时因故障分量小对选线带来不利。运用Sym小波包在frequency field时频范围内分析该零序电流的特点,从而得出新的选线方法,并利用MATLAB SIMULINK提供的软件平台,经过大量的实验证明新的选线方法的正确性。
For small earthing neutral grounding power system, the single phase fault current is too small to differentiate and analyses, in this paper, Sym7 wavelet packet is used to analyze the single phase fault zero sequence current in time and frequency fields. And a new method is made. MATLAB SIMULINK software proves the new method correct .
出处
《重庆电力高等专科学校学报》
2006年第4期1-3,8,共4页
Journal of Chongqing Electric Power College
关键词
小电流接地系统
故障选线
小波包分析
小波系数
small earthing neutral grounding power system
fault selection
wavelet packets analyses
wavelet packetcoefficient
