Implementation of Supercapacitor-Battery-Based Energy Storage System in Hybrid Power System Incorporating Renewable Energy Resources

As the globe is moving closer to using renewable energies (RERs), society is facing new difficulties. The current article proposes a system that is solar and wind energy based, a control system that combat with sporadic and unstable nature of the linked load as well as of wind and solar energy. In this paper, it is proposed that to counter mismatch between the power supplied by the renewable energy resources (RERs) and load connected to the system, a backup source/sink is needed. Generally, battery energy storage is used for this purpose. But this paper proposes a hybrid system of energy storage (HESS) comprising of battery and supercapacitor for solving the problem. Furthermore, the hybrid operation of these both storage systems provides better voltage and frequency regulation. The battery should be utilized to control the long-term power dysfunction between generation and demand by using a hybrid operation of a battery and supercapacitors and the supercapacitors to deal with the rapid changes and severe dysfunction between power production and consumption. With the suggested control method, HESS may be better controlled to offset power discrepancies that occur between the connected loads and the power generated by RERs. A main objective of the control system is to maintain at all times voltage at DC link, 3-phase voltage and frequency within required/specified range. Moreover, gap of electricity required and supply is minimized. To validate the findings, the suggested work is simulated in the MATLAB/Simulink environment.