Theoretical and Experimental Aspects Concerning Fourier and Wavelet Analysis for Deforming Consumers in Power Network
This paper presents the application of Fourier and Wavelet transforms in analysis of the deforming consumers. Fourier transform is probably the most popular transform being use in the analysis of the deforming state, but it is not the only one. The Wavelet transform is introduced as a powerful tool for monitoring the deforming state. We present a comparative study between the Fourier transform and Wavelet transform. It is presents a multiresolution signal decomposition technique in analysis of the deforming signals from the three-phase rectifier with thyristors. Also we illustrate a virtual instrument for Fourier analysis of some deforming consumers Data acquisition, display and analysis are making with the PCI 6251 board acquisition, the digital oscilloscope DPO 3014 and power quality analyzer C.A. 8332 B. Ill. 7, bibl. 12 (in English; abstracts in English, Russian and Lithuanian).
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