Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/30457
Title: A wavelet approach to fast approximation of steady-state waveforms of power electronics circuits
Authors: Liu, M
Tse, CK 
Wu, J
Keywords: Power electronics circuits
Steady-state solutions
Wavelet transforms
Issue Date: 2003
Publisher: John Wiley & Sons
Source: International journal of circuit theory and applications, 2003, v. 31, no. 6, p. 591-610 How to cite?
Journal: International journal of circuit theory and applications 
Abstract: Waveforms arising from power electronics circuits often contain slowly changing segments with high-frequency details concentrated near the switching instants. Such a feature is consistent with the localization property of wavelets which are known in the signal processing literature to be highly suitable for describing fast changing edges embedded in slowly varying backgrounds. This paper considers the application of wavelet approximation to the steady-state analysis of power electronics circuits. The basic procedure of wavelet approximation is reviewed, and an improved approach by mixing wavelets of different levels is described. When applied to power electronics circuits, the method yields efficient solutions because only a relatively small number of wavelets are needed and the proposed algorithm involves only matrix operations, permitting the steady-state waveforms to be found fast.
URI: http://hdl.handle.net/10397/30457
ISSN: 0098-9886
EISSN: 1097-007X
DOI: 10.1002/cta.252
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