Title :
A new method for extracting PD signal from harsh electromagnetic environment
Author :
Yan, Nianping ; Yu, Qinxue ; Tang, Chao ; Li, Wenjie
Author_Institution :
State Key Lab. of Electr. Insulation for Power Equip., Xi´´an Jiaotong Univ., Xi´´an, China
Abstract :
Aiming at the harsh electromagnetic environment, this paper presents a new method to extract partial discharge signal, which using fast Fourier transform suppress discrete spectrum interference, and then use discrete wavelet transform delete the residual noise all together. Further more, there is also bring out how to modulate the fast Fourier transform denoising threshold to achieve the best denoising performance. Finally, the practical use proves that this method is convenient and effective.
Keywords :
discrete wavelet transforms; electromagnetic interference; fast Fourier transforms; interference suppression; partial discharges; signal denoising; PD signal extraction; discrete spectrum interference suppression; discrete wavelet transform; fast Fourier transform denoising threshold; harsh electromagnetic environment; partial discharge signal extraction; residual noise; Discrete Fourier transforms; Discrete wavelet transforms; Electromagnetic interference; Electromagnetic scattering; Fast Fourier transforms; Interference suppression; Noise reduction; Partial discharge measurement; Partial discharges; Signal to noise ratio; Fast Fourier Transform; denosing; discrete wavelet transform; partial discharge;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2009. ICPADM 2009. IEEE 9th International Conference on the
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-4367-3
Electronic_ISBN :
978-1-4244-4368-0
DOI :
10.1109/ICPADM.2009.5252378
