Saturation influence on the performances of series active power filter

This paper presents a study on the injection transformer, showing the influence of its saturation on the performances of the series active power filter to compensate the voltage perturbation. The determination of voltage references for series active power filter is based on a robust three-phase digital phase locked loop (PLL). A control strategy related to fuzzy hysteresis band voltage method, where the band is modulated with the system parameters to maintain the modulation frequency nearly constant is developed in. Simulation results based on Matlab/Simulink are presented to verify the impact of transformer on the output voltage of series active power filter.