Title :
A comparative study of WPT and DWT based techniques for measurement of harmonics
Author :
Kashyap, Subhash ; Singh, Asheesh K.
Author_Institution :
Indian Oil Corp. Ltd.
fDate :
Sept. 28 2008-Oct. 1 2008
Abstract :
The present work shows a distinct comparison between wavelet packet transform (WPT) and discrete wavelet transform (DWT) for quantization of power system harmonics. The analysis has been carried out on two sets of actual tested waveforms obtained using power quality analyzer. The results obtained using WPT and DWT are compared with IEEE Standard 1459-2000 based values and percentage error has been calculated for the individual parameters in both the cases. This study recommends the use of DWT as more suitable and efficient over WPT for analysis of power system harmonics.
Keywords :
discrete wavelet transforms; harmonic distortion; power supply quality; power system harmonics; IEEE Standard 1459-2000; discrete wavelet transform; harmonics measurement; power quality analyzer; power system harmonics quantization; total harmonic distortion; wavelet packet transform; Discrete wavelet transforms; Fourier transforms; Frequency domain analysis; Power system analysis computing; Power system harmonics; Signal analysis; Voltage; Wavelet domain; Wavelet packets; Wavelet transforms; Discrete wavelet transform (DWT); Power quality; Power system harmonics; Total harmonic distortion (THD); Wavelet packet transform (WPT);
Conference_Titel :
Harmonics and Quality of Power, 2008. ICHQP 2008. 13th International Conference on
Conference_Location :
Wollongong, NSW
Print_ISBN :
978-1-4244-1771-1
Electronic_ISBN :
978-1-4244-1770-4
DOI :
10.1109/ICHQP.2008.4668869
