Analysis of Non-Stationary Signals in Power Systems using Wigner Transform and Min-Norm Method
Leonowicz, Z (Wroclaw University of Technology, Poland)
Abstract: Time-varying spectra of non-stationary time-series commonly used are spectrograms from the Short-Time Fourier Transform (STFT). The most prominent limitation of the Fourier Transform is that of frequency resolution. To overcome the limitations the Wigner-Ville Distribution and the Min-Norm subspace method have been applied for spectrum estimation of non-stationary signals caused by switching on capacitor banks and by a short circuit at the output of a frequency converter. Investigation results confirm the advantages of the advanced methods.
Note: Proceedings of the 7th Int. Conference EEEIC 2008, Cottbus, 5-11.05.2008, pp. 43-46
Fulltext : http://zet10.ipee.pwr.wroc.pl/record/88/files/
Cited by: try citation search for ENY-PREPRINT-2008-005
Record created 2008-03-16, last modified 2008-05-31
|People who viewed this page also viewed:|
Be the first to review this document.
Start a discussion about any aspect of this document.