Control Strategies and Simulation of a Hybrid-Microgrid in Grid-Connected and Islanded Modes

Abstract

During last decades, due to continuous increasing power demand and advancing technology, microgrid (MG) has become more popular. Renewable energy sources stand itself as one of the power generation sources in such microgrids. This paper introduces a hybrid AC microgrid (ACMG) comprising a storage system, wind turbine, diesel generation (DG), and microgrid control center (MGCC), which was capable of operating isolated or interconnected with main grid. A power control strategy is proposed based on the data received from the MGCC, which improved the power reliability and stabilized the power system during power failure An experimental modeling platform was used to analyze the grid behaviors in MATLAB Simulink. The observed results confirmed that the proposed strategy enhanced the power efficiency and stability in the proposed microgrid.