Seamless Transition of Grid connected and Islanded modes in AC Microgrid

To supply reliable power to all distribution loads, the integration of renewable energy sources gains more importance. A microgrid is a subset of distribution systems where all the local loads are interconnected with renewable energy sources which increase the reliability of the power supply. The inverters operating in the AC microgrids provide an uninterruptible power supply by operating both in grid-connected and islanded modes of operation. This paper presents a seamless power transfer capability of the inverter in both grid-connected and islanded modes. The simulations are carried in MATLAB/SIMULINK environment.