Charging management of grid integrated battery for overcoming the intermittency of RE sources

Abstract

Grid integration of distributed generation (DG) systems with energy storage system can help not only in increasing the more penetration of DG systems into the network but it is also going to help in improving the power system dynamics, stability and control as well as helping in demand side management. In this work, a method for integrating an energy storage with the grid which can provide the prescribed active and reactive power to the grid is presented. The main objective is to ensure a high state of charge (SOC) of the battery with the innovative control system for taking part in power system control. Active and reactive power dispatching using a bi-directional DC-DC converters and a voltage source inverter (VSI) with VSI control strategies are presented. The system is implemented in MATLAB/Simulink® with Stateflow® and the simulation results illustrate the system performance.