基于相关分析和小波包的配网选线方法的研究  

Study of Fault Line Choosing Based on Correlation Analysis and Wavelet Packet Analysis for Distribution System

作　　者：赵大欣 袁欣 

机构地区：[1]武汉东西湖区供电公司,湖北武汉430013

出　　处：《华中电力》2012年第3期-,共3页Central China Electric Power

摘　　要：配网系统发生单相接地故障时,单一选线算法都存在着一定的动作死区。基于此提出了融合相关系数分析和小波包单频带分析的双重判据的综合选线算法。通过PSCAD/EMTDC仿真软件,搭建了一个35kV的配网模型验证了2种选线算法的可行性,并通过一次接地实例验证算法的准确性。There exists dead zone by using single line choosing method when it is applied in single-phase-to-ground fault line detection in distribution system.This paper offers two other fault line choosing methods that are correlation analysis and wavelet packet analysis.By means of PSCAD/EMTDC simulation software,a typical 35 kV distribution system model is created to testify the practicability of these two methods.The accuracy and reliability of these two methods are proved by the results of practical grounding test.

关 键 词：配网系统 相关分析 小波包分析 PSCAD/EMTDC 

分 类 号：TM74[电气工程—电力系统及自动化]