WAVELET TRANSFORM IN THE DETECTION OF ELECTRICAL POWER QUALITY DISTURBANCES

Disturbances in power quality usually produce continuity changes in the power signal. Wavelet transform is particularly useful in detecting discontinuities in signals, and this makes it appropriate for detection of disturbances in power quality. This study reviews various kinds of power quality disturbances with the goal of detecting them using wavelet transform. Two types of mother wavelets were used to process different power quality disturbance signals. The result shows clearly various forms of changes in amplitude and frequency of the signals.

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