De-Noising Method for Partial Discharge Signal Based on Wavelet Transform and Partial Differential Equation

Jian Zhang; Fu Jiang Mo; Feng Yao; Xiao Jian Wang

doi:10.4028/www.scientific.net/AMM.529.444

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 529De-Noising Method for Partial Discharge Signal...

De-Noising Method for Partial Discharge Signal Based on Wavelet Transform and Partial Differential Equation

Abstract:

In order to solve the noise suppression problem in partial discharge (PD) signals detection, this paper proposes a de-noising method based on wavelet transform and partial differential equation (PDE). Compared the effect of proposed method with traditional wavelet threshold de-noising method, simulation and calculation results both show that paper’s method can remove the interference signal, retain the better edge detail of signal and low distortion when taking the appropriate iteration times.