Application of Wavelet Transform with Tunable Q-Factor to Analysis of Non-Stationary Harmonics

Run Han Zhang; Luo Quan Hu; Wei Fan; Xiao Lin Liu

doi:10.4028/www.scientific.net/AMM.526.182

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 526Application of Wavelet Transform with Tunable...

Application of Wavelet Transform with Tunable Q-Factor to Analysis of Non-Stationary Harmonics

Abstract:

Harmonics of power system include steady and transient components, extraction and analysis of them can improve the power quality. Tunable Q-factor wavelet transform (TQWT), for which the Q-factor can be easily specified, is adopted to accomplish the extraction of non-stationary harmonic component from the noisy signal. The proposed method decomposes a signal into noise component and non-stationary harmonic component based on suitable Q-factor. Feasibility and effectiveness of the proposed method are verified by the simulation study.

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Periodical:

Applied Mechanics and Materials (Volume 526)

Pages:

182-186

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.526.182

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Online since:

February 2014

Authors:

Run Han Zhang, Luo Quan Hu*, Wei Fan, Xiao Lin Liu

Keywords:

De-Noising, Harmonic, Q-Factor, Signal Processing, Wavelet Transform (WT)

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* - Corresponding Author

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