Wavelet Transform Based Controller for Induction Motor Drives
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چکیده
The wavelet transform is a very popular tool for signal processing and analysis. It is widely used for the analysis of non-stationary, non-periodic and transient signals. The popularity of the wavelet transforms is mainly due to their ability to concentrate the energy of the processed signal into a finite number of coefficients. They are capable of providing the time-frequency localization of the signal. Wavelet Transform uses multi-resolution technique by which different frequency components are analyzed with different resolutions. It is realized through successive stages of filters followed by down sampling operation. Currently, there is a tremendous increase in the use of wavelet transform for real time applications. Wavelet transform has been applied in diverse fields such as image denoising, video signal compression, optics, climate change analysis, financial market analysis, fault analysis and condition monitoring of rotating machines and power system analysis.
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