MODELING AND CONTROL OF A BATTERY BASED PHOTOVOLTAIC GRID CONNECTED SYSTEM
Keywords:
battery energy storage system, Solar Photovoltaic, point of common coupling.Abstract
currently, due to the less usage of conventional electricity resources and growing problems of environmental pollution, renewable energy resources are playing a large function in generating energy. The solar and wind are popular renewable energy sources among all of them, solar energy has grown to be a promising, famous and alternative supply due to its advantages consisting of abundance, no pollution, renewability and maintenance loose. Here three independent control loops are used to control the entire system. Those are battery control for bidirectional power flow between battery and DC-link through bidirectional buck-boost converter, MPPT control for extracting maximum power and inverter control for maintaining stable voltage and current at local load. The complete system is simulated and analyzed in MATLAB/SIMULINK.