Power flow analysis of hybrid AC/DC microgrid based on power electronic transformer

Abstract

Power flow analysis is the basis for planning, design and optimized operation of Hybrid AC/DC microgrids. Aiming at the impact of the introduction of power electronic transformers on the power flow distribution of the Hybrid AC/DC microgrid, this paper will carry out the power flow analysis of the Hybrid AC/DC microgrid based on the power electronic transformer. First, the topology of the Hybrid AC/DC microgrid based on power electronic transformer is proposed, and the configuration of the source, load, and storage of the microgrid is given. Next, an equivalent model for power flow analysis of Hybrid AC/DC microgrid is established in Simulink. Finally, the power flow analysis of AC and DC hybrid microgrid with and without power electronic transformers is carried out respectively. The simulation results show that the power electronic transformer can make the Hybrid AC/DC microgrid fully consume new energy, and effectively realize the optimized and coordinated operation of source, grid, load, and storage.