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