Simulation of Shunt active Filter based on P-Q technique using MATLAB/ Simulink development tools environment

Abstract

This paper shows the method of improving the power quality using voltage source inverter based shunt active power
filter. The procedure uses a simple method named synchronous reference current generation for reference current extraction .The
proposed topic comprises of PI controller, high pass filter, phase locked loop, dc link capacitor. The switching signal generation
for filter is from hysteresis current controller techniques. With the all these element shunt active power filter reduce the total
harmonic distortion. This paper represents the simulation and analysis of the using three phase three wire system active filter to
compensate harmonics .The proposed shunt active filter model uses balanced non-linear load. This paper successfully lowers the
THD within IEEE norms and satisfactorily works to compensate harmonics. The model is made in MATLAB / SIMULINK and
successfully reduces the harmonic in the source current. The total Harmonic Distortion, Individual harmonic content with respect
to % of fundamental in Supply current, source voltage have been analyzed. Various Simulation results are presented. The THD of
the source current after compensation is well below 5%, the harmonic limit imposed by the IEEE-519 standard.