Simultaneous voltage and current harmonics compensation in islanded/grid-connected microgrids using virtual impedance concept

Power quality improvement is an essential aspect of microgrids. In this paper, a cascaded voltage and current control scheme using the virtual impedance concept is proposed, which is capable of simultaneous quality improvement of local load voltage and grid-injected current. Also, the proposed control scheme is capable of working in both islanded and grid-connected modes with the ability of seamless transfer between them. In the proposed control...