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

fYear

2009

fDate

19-23 July 2009

Firstpage

509

Lastpage

512

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICPADM.2009.5252378

Filename

5252378