Reduction in harmonic voltages on distribution system using wavelet transform

Abstract

Harmonic that occurs in electrical power distribution system can disrupt and even decrease the quality of power services, so that reduction or removal of those harmonic are needed to be done. Wavelet transformation can give resolution of both frequency and time at the same time, this capability is often called Multi Resolution Analysis (MRA). Wavelet transform is applied in order to remove those harmonic voltages. Simulation has been done using Matlab. The result showed that the wavelet transformation is very effective to reduce harmonic voltages up to seventh harmonic.