Title :
Selection of a suitable mother wavelet for analyzing power system fault transients
Author :
Megahed, A.I. ; Moussa, A. Monem ; Elrefaie, H.B. ; Marghany, Y.M.
Author_Institution :
Dept. of Electr. Eng., Alexandria Univ., Alexandria
Abstract :
In the literature, wavelet techniques are proposed for the analysis of power system transients. Many mother wavelets have been used for this analysis such as Haar, Daubechies (db), Symlets, and Coiflets. This paper describes a strategy to choose a suitable mother wavelet for this analysis. It also shows the deviation between Matlab and theoretical (mathematically calculated) db-wavelets when they are used for the analysis of power system transient. The simulation study is carried out using PSCAD simulation program and Matlab wavelet toolbox. The simulation results show that the theoretical db wavelet is more suitable for analyzing power system fault transients than the Matlab db wavelet.
Keywords :
power system faults; wavelet transforms; Daubechies wavelet; mother wavelet; power system fault transients; Discrete wavelet transforms; Frequency; Low pass filters; Power system faults; Power system protection; Power system simulation; Power system transients; Transient analysis; Wavelet analysis; Wavelet transforms; Daubechies wavelet; Matlab wavelets toolbox; Power system fault transient;
Conference_Titel :
Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE
Conference_Location :
Pittsburgh, PA
Print_ISBN :
978-1-4244-1905-0
Electronic_ISBN :
1932-5517
DOI :
10.1109/PES.2008.4596367