Design of an Energy Management System with Power Fluctuation Mitigation Capability for PV/Wind Hybrid Renewable Energy Sources

Wind speed and solar radiation in renewable energy sources are natural variables. For this reason, the balance between energy production and demand cannot be maintained continuously and Battery Energy Storage Systems (BESSs) and energy management units are used in these systems. In this study, a BESS control system is proposed. The proposed BESS control system is designed to eliminate the negative effects of power fluctuations that may arise due to rapid changes in natural factors such as wind speed and solar irradiation, as well as back-up energy storage, and thus both the load and grid power quality is improved. The hybrid system with wind turbine and solar photovoltaic (PV) modules and the proposed control scheme are modeled in MATLAB/Simulink and tested. The simulation results validate the performance of the proposed BESS control system on decreasing the power fluctuations.