Title :
Wavelet transform denoise of PD signal on coaxial cylinder electrodes
Author :
Zheng, Dianchun ; Zhang, Chunxi ; Sun, Xueyong ; Liu, Huawei ; Yang, JiaXiang
Author_Institution :
Harbin Univ. of Sci. & Technol., China
Abstract :
The paper presents the basic principle and method of dealing with PD (partial discharge) signals using wavelet transform. It is demonstrated that wavelet transform is a useful and effective tool for extracting PD pulse signals from noise. It makes more certain that failures caused by the PD which happens in the GIS, GIC and GIL, could be precisely measured, predicted and monitored.
Keywords :
coaxial cables; electric breakdown; electrodes; failure analysis; fault location; gas insulated substations; gas insulated switchgear; gas insulated transmission lines; insulation testing; noise; partial discharge measurement; signal denoising; wavelet transforms; GIC; GIL; GIS; PD measurement; PD monitoring; PD signal denoise; coaxial cylinder electrode; failure analysis; gas-breakdown; partial discharge signal denoise; scaling function; wavelet transform; Breakdown voltage; Coaxial components; Continuous wavelet transforms; Electrodes; Fourier transforms; Geographic Information Systems; Insulation; Partial discharges; Surface discharges; Wavelet transforms;
Conference_Titel :
Electrical Insulation, 2004. Conference Record of the 2004 IEEE International Symposium on
Print_ISBN :
0-7803-8447-4
DOI :
10.1109/ELINSL.2004.1380486
