Title :
Analysis of Harmonics in Power Systems Using the Wavelet Packet Transform
Author :
Barros, Julio ; Diego, Ramón I.
Author_Institution :
Dept. Electron. & Comput., Cantabria Univ., Santander
Abstract :
The paper proposes an algorithm based on the wavelet-packet transform for the analysis of harmonics in power systems. The algorithm proposed decomposes the voltage/current waveforms into uniform frequency bands corresponding to the odd harmonic components of the signal. First, the selection of the mother wavelet, the sampling frequency and the frequency characteristics of the selected wavelet filter bank are studied. Finally the performance of the method proposed is compared with the results obtained using DFT analysis and the harmonic group concept introduced by the International Electrotechnical Commission using different test waveforms proposed in standard IEC-61000-4-7
Keywords :
discrete Fourier transforms; harmonic analysis; harmonic distortion; power system harmonics; wavelet transforms; DFT analysis; IEC-61000-4-7; International Electrotechnical Commission; harmonic distortion; harmonics analysis; power systems; wavelet filter bank; wavelet packet transform; Algorithm design and analysis; Frequency; Harmonic analysis; Power harmonic filters; Power system analysis computing; Power system harmonics; Voltage; Wavelet analysis; Wavelet packets; Wavelet transforms; harmonic distortion; wavelets;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2005. IMTC 2005. Proceedings of the IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-8879-8
DOI :
10.1109/IMTC.2005.1604398
