An Algorthithm to Locate Power-Quality Disturbance Source Based on Disturbance Measures and Information Fusion Theory
To improve the deficiencies of traditional symbolbased location,express the disturbance direction more reasonably,and locate the disturbance source accurately,this paper presents a new method to locate power-quality disturbance source.The method decomposes the disturbance signal to multiscale using the wavelet transform,and extracts the transient disturbance signals and the steady-state disturbance signals respectively,using two different location algorithms according to the feature of the disturbance signals,and then obtaining the column vector of disturbance direction measures with the network topology.In order to improve the reliability of location algorithm,the evidence theory is employed to process the fusion of multi-information,which transforms the disturbance source location with multi criteria to an evidence,obtaining the sign of degree that the lines exist disturbance source.The method simulates in DDRTS and the experiment test results indicate that this method can improve the availability and accuracy of disturbance source location.
power quality:disturbance source location:wavelet transform:information fusion
Dong Hai-yan Guo Qian Jia Qingquan Bo Zhi-qian Wang Shuo Yang Xiao-wen
YanShan University Qinhuangdao China AREVA Protect/Control Ltd Stafford,ST17 4LX,United Kingdom
国际会议
威海
英文
589-595
2011-07-06（万方平台首次上网日期，不代表论文的发表时间）