Different control strategies applied to series active filters

Abstract

The series active filters are used tocompensate loads of the kind voltage harmonics source.In this paper three different control strategies have beenapplied to a series active filter. The first is based on thatthe filter voltage must be proportional to the harmonic ofthe source current. With the second strategy the filtervoltage must be equal to voltage harmonics on the sideload but in opposition. The third strategy is a hybridcontrol where the filter voltage is obtained using bothprevious strategies. The proposed control approacheshave been analyzed and the simulation results usingMatlab-Simulink have been presented.