Selection of Optimal Mother Wavelet for FaultDetection Using Discrete Wavelet Transform

[摘要] This paper exploited the various mother wavelets for fault detection. A different value of fault resistances analyzed on different types of mother wavelets. Comparisons are made based on the sum of coefficients in multi resolution signal decomposition (MSD) using Discrete Wavelet Transform (DWT). Based on the extensive investigations on different value of fault resistance in Line-Ground (L-G) fault, optimal mother wavelet is proposed.

[关键词] Wavelet;wavelet coefficient;fault;multi resolution decomposition