FUZZY LOGIC CONTROLLER BASED THREE PHASE SHUNT ACTIVE POWER FILTER FOR HARMONICS REDUCTION WITH ID-IQ CONTROL STRATEGY
Keywords:
PI controller,, Shunt active power filter, synchronous reference frame,, voltage sourc e converters,Abstract
For the elimination of current harmonic in power system, Shunt active power filter is a complete current source. Its performance depends on the topology of inverter used in the design, control technique, and strategy employed in reference current generation. In this study, fuzzy logic cu rrent control technique is used for generatio n of pulses of the three phase inverter. A band pass filter is mainly required in synchronous reference frame algorithm (SRF) or Id-Iq theory for harmonics extraction. Under balanced voltage co ndition the sh unt active power filter performance is evaluated with MATLAB/SIMULINK. The result are good and gives satisfacto ry response in elimination of the harmonics.
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