Title :
On the analysis of power electronics circuits waveforms with wavelets
Author :
Wernekinck, Eugenio ; Valenzuela, Humberto ; Anfossi, Ivonne
Author_Institution :
Univ. de Bio-Bio, Concepcion, Chile
Abstract :
In the last decade, the DFT has become one of the most popular tools used by the electrical engineering community to analyse waveforms generated by power electronics circuits. However, due to the nature of this transform, transient situations cannot be studied, moreover, if present, they can mislead the conclusions. In this paper, the wavelet method is introduced as an analysis tool of some typical power converter waveforms where the DFT is useless. The fundamental properties of wavelets are presented first, then, waveforms of typical power electronics circuits are studied showing how this new method can be used to reveal transient behaviour, discontinuities in the derivatives, and other characteristics of the signals.<>
Keywords :
fast Fourier transforms; network analysis; power convertors; wavelet transforms; DFT; FFT; discrete Fourier transform; network analysis; power converter; power electronics; transient behaviour; wavelet method; Circuits; Discrete Fourier transforms; Frequency conversion; Frequency domain analysis; Power electronics; Power engineering computing; Power generation; Signal analysis; Visualization; Wavelet analysis;
Conference_Titel :
Power Conversion Conference, 1993. Yokohama 1993., Conference Record of the
Conference_Location :
Yokohama, Japan
Print_ISBN :
0-7803-0471-3
DOI :
10.1109/PCCON.1993.264197