Reduction of Current Harmonics Using SVPWM Control for Shunt Active Filter

-As the use of power electronic equipment is spreading, the degradation of the power quality in the utility networks is increasing and is becoming a major problem. Limiting the current distortion is therefore a concern for both utilities and consumer. Power converters such as rectifiers, power supplies and at a higher power level, arc furnaces are the sources of harmonics. This harmonics can be reduced by using the shunt active filter. There are many control strategies to reduce harmonics. This paper presents space vector PWM control strategy for extracting reference currents of shunt active filters under non-linear load conditions by using Genetic Algorithm. The three-phase, three-wire, and seven level cascaded multilevel inverter is used as a medium-voltage shunt active power filter. The effectiveness of the proposed control algorithm is demonstrated by computer simulation and experimental results of a shunt active filter for a three-phase three wire distribution system with non-linear loads. Keywords---Harmonic Compensation, Shunt Active Power Filter, Multileve inverter, Space Vector Pulse Width Modulation Control Strategy, Genetic Algorithm.