Renewable based DC microgrid with energy management system

This paper explores the need for renewable based DC microgrid and proposes characteristic features of a standalone DC microgrid. The need for energy management system and its role in DC microgrid has been emphasized. Renewable generating sources such as wind turbine generator and photovoltaic panel require stringent control for harnessing maximum available energy, energy storage system demands efficient management, and DC-link voltage must be maintained constant. These requirements are fulfilled by energy management system, thus it provides intelligence to the system and makes the microgrid reliable. An isolated renewable DC microgrid having proposed features and energy management system has been simulated using MATLAB/SIMULINK. The designed system sustains dynamic conditions and simulation results validate feasibility of DC microgrid and energy management algorithm.