Research of the Harmonic Detection Method Based on Wavelet Transform

Author

Yuan Chenhu ; Li Xiuyan ; Zhao Xianlong ; Wang Wei

Author_Institution

Sch. of Electr. Eng. & Autom., Tianjin Polytech. Univ., Tianjin, China

fYear

2011

fDate

30-31 July 2011

Firstpage

1

Lastpage

4

Abstract

Harmonic detection based on wavelet transform was studied. The single wavelet, multi-wavelet and wavelet packet transform and their fine kernel functions in fields of signal processing were adopted and selected. Detecting effect with different transform methods was compared. A kind of virtual harmonic detector based on LABVIEW was built. Time domain waveform of first and each harmonic was decomposed with help of wavelet transform. Steady-state harmonic signal, momentary harmonic signals, intermittent harmonic signal, Gaussian white noise signal were analyzed. The results indicated that the virtual instruments can achieve better harmonic measurement and analysis.

Keywords

harmonic analysis; signal detection; virtual instrumentation; wavelet transforms; Gaussian white noise signal; LabView; harmonic detection method; intermittent harmonic signal; momentary harmonic signal; multiwavelet; signal processing; single wavelet; steady-state harmonic signal; time domain waveform; virtual harmonic detector; virtual instrument; wavelet kernel function; wavelet packet transform; Harmonic analysis; Power system harmonics; Wavelet analysis; Wavelet domain; Wavelet packets;

fLanguage

English

Publisher

ieee

Conference_Titel

Control, Automation and Systems Engineering (CASE), 2011 International Conference on

Conference_Location

Singapore

Print_ISBN

978-1-4577-0859-6

Type

conf

DOI

10.1109/ICCASE.2011.5997630

Filename

5997630