Design and Simulation of Stand-alone DC Microgrid with Energy Storage System

Use of renewable energy sources significantly reduces the fuel consumption for electricity generation which in turn trims down the greenhouse gas emissions. The concept of Microgrid and Smart grid has evolved from the deployment of Renewable Energy based power generation plants, their integration into the existing utility grid. Simulation and analysis of a standalone DC Microgrid is presented in this paper. Solar PV (SPV) system is the main source of the grid, battery is used as Energy Storage System (ESS). A simulation model of DC Microgrid is built in MATLAB/Simulink. The designed system is simulated under various input conditions, load variations to study and analyze the performance of whole system. The simulation results obtained under different conditions from various stages of the DC microgrid components are presented and discussed.