Application of Wavelet Packet Analysis in Phase-to-Ground Fault Detection of Distribution Power System

摘要：

Applying the good property of frequency division of wavelet packet, each line’s phase current faulty component,which appear in the distribution networks occurring a single phase to ground fault, is decomposed to obtain the outputs of different frequency bands in this paper. The feature frequency band of each line, in which the transient healthy phase current is most concentrated, is chosen according to the view of maximum energy. The state of each line will be judged with the ratio of transient current in an adaptive feature band, where the transient current of healthy phase is most centralized. Simulation of PSCAD and analysis of MATLAB proved that this scheme can distinguish faulty feeder from healthy feeder correctly with high sensitiveness.

关键词： faulty line selection feature frequency band phase current current faulty component adaptive wavelet packet distribution network simulation reconstruction transient analysis

作者: W. G. Zhang B. H. Zhang H. S. Hu B. Shao A. Klimek Z. Q. Bo H. B. Yang

作者单位: Department of Electrical Engineering, Xi’an Jiaotong University, Xi’an, Shanxi province, 710049 Chin AREVA T&D Automation, AREVA, Stafford, ST17 4LX, UK Binzhou electric power corporation, Binzhou, Shandong electric power corporation, 256610 China

会议类型: 国际会议

会议名称: The International Conference on Electrical Engineering 2009(2009 电机工程国际会议)

会议地点: 沈阳

会议语种:英文

页码: 1-5

在线出版日期: 2009-07-05（万方平台首次上网日期，不代表论文的发表时间）