The study of spectrum estimation in the power electronic devices based on wavelet analysis

Author

Xiong Rui ; Huang Jin ; Deng Wendan ; Xie Yicong

Author_Institution

Coll. of Electr. & Electron. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China

fYear

2003

fDate

4-7 Nov. 2003

Firstpage

182

Lastpage

185

Abstract

The EMI spectrum plays an important role in the EMC prediction of the power electronic devices. A spectrum estimation method is presented, which combines the good ability of Fourier analysis in accurate frequency localization and the features of wavelet analysis both in saltation signal processing and in adaptive signal processing, to apply a wavelet thresholding to the EMI characteristic of the system. This thresholding method has been verified by simulation and the experiment results in a power converter.

Keywords

Fourier analysis; adaptive signal processing; electromagnetic compatibility; electromagnetic interference; frequency estimation; power convertors; spectral analysis; wavelet transforms; EMC prediction; EMI spectrum; Fourier analysis; accurate frequency localization; adaptive signal processing; power converter; power electronic devices; spectrum estimation; wavelet analysis; wavelet thresholding; Electromagnetic compatibility; Electromagnetic interference; Power electronics; Power system modeling; Random processes; Signal analysis; Signal processing; Spectral analysis; Time domain analysis; Wavelet analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Environmental Electromagnetics, 2003. CEEM 2003. Proceedings. Asia-Pacific Conference on

Conference_Location

Hangzhou, China

Print_ISBN

7-5635-0802-3

Type

conf

DOI

10.1109/CEEM.2003.237869

Filename

1282273