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Advances in Power Electronics
Volume 2012 (2012), Article ID 237259, 6 pages
Research Article

ANN Current Controller Based on PI-Fuzzy Adaptive System for Shunt Power Active Filter

Department of Physics, Faculty of Sciences Semlalia, Cadi Ayyad University, 40000 Marrakech, Morocco

Received 14 December 2011; Revised 17 July 2012; Accepted 17 July 2012

Academic Editor: Jose Pomilio

Copyright © 2012 Moulay Tahar Lamchich. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper deals with the use of triphase shunt active filter which is able to compensate current harmonics, reactive power, and current unbalance produced by nonlinear loads. To perform the identification of disturbing currents, a very simple control method is introduced. It’s formed by a DC voltage regulator and a balance between the average power of load and the active power supplied by the grid. The output current of the voltage source inverter (VSI) must track the reference current. This is done by a neural controller based on a PI-Fuzzy adaptive system as reference corrector. Also to regulate the DC link capacitor voltage a fuzzy logic adaptive PI controller is used.