A Transformerless Hybrid Series Active Filter (THSeAF) is proposed to enhance the power quality in single-phase systems with critical loads. This paper assists the energy management and power quality issues related to electric transportation, and focuses on improving electric vehicles loads connection to the grid. The control strategy is designed to prevent current harmonic distortions of non-linear loads to flow into the utility and corrects the power factor of this later. While, protecting sensitive loads from voltage disturbances, sags, and swells initiated by the power system, ridded of the series transformer, the configuration is advantageous for an industrial implementation. This
polyvalent hybrid topology allowing harmonic isolation and compensation of voltage distortions could absorb or inject the auxiliary power to the grid. Beside practical analysis the paper also investigates on the influence of gains and delays in the real time controller stability. The simulations and experimental results presented in this work were carried out on a 2kVA laboratory prototype demonstrating the effectiveness of proposed topology
