JFET_V2_N1_RP3 E. Chandra Sekaran Journal on Future Engineering and Technology 2230 – 7184 2 1 36 41 Harmonics, THD, PI control, Fuzzy control The deterioration of currents and voltages in electrical networks is due to the presence of non-linear loads (rectifiers, variable speed transmissions, lighting etc) absorbing non sinusoidal currents. These harmonic current circulate in the electrical network, disturb the correct operation of the components and can even generate their destruction. So the reduction of harmonic component becomes essential. In this paper, harmonic reduction using PI and fuzzy logic control has been proposed for a AC-DC converter. The proposed control logic is simulated using MATLAB/SIMULINK and the results are compared. August-October 2006 Copyright © 2006 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=969