Analysis, Comparison and Study on Mitigation of Harmonics by using Active and Passive Harmonics Filters by using MATLAB Simulation

Abstract

In this Paper Harmonics Distortion problems counter many of the conventional rules of Electric power system design and operation that consider only the fundamental frequency. The engineer is faced with unfamiliar phenomena that require their unfamiliar tools to analyse, study and unfamiliar equipment to solve. This paper is basically concerned with the Analysis and Study of Harmonics generated and Destroyed by Power Electronic Converters. The investigation and analysis of harmonics has been carried out using Fast Fourier Transform (FFT) to evaluate the Total Harmonic Distortion (THD) of the converters with and without filters. MATLAB/SIMULINK have been employed for their presenting the simulation results because it is well established and recognized simulation software for the power system. Next, the designing of Passive Filter (Single tuned), is carried out after a literature review and have been applied to the converters for harmonics mitigation. In the future, we would proceed to work on Active as well as Passive (combination types) Filters for Harmonics Mitigation. The harmonic distortion solution chosen was to design a passive filter to decrease the distortion by shifting the resonance point of the network. This Paper includes the method to design the passive filter and its impact on efficiency and energy usage.