Power flow control of hybrid AC-DC microgrid using master-slave technique

Distributed renewable energy resources (DER) based power generation has gained much attention in recent years as conventional power generation units are facing problem like fossil fuel depletion. The hybrid AC-DC microgrid not only allows connection of variable distributed AC and DC resources to utility but also reduces multiple conversions in individual AC or DC microgrid. In this paper, Master-Slave control technique is proposed for smooth power transfer between AC and DC grid, applicable for both grid tied and island mode. A hybrid AC-DC microgrid has been modeled using MATLAB simulink. The simulated results validate control scheme for reliable and stable grid operation under various load and supply conditions.