Frontiers in Energy Research, Journal Year: 2023, Volume and Issue: 11

Published: Nov. 20, 2023

Large-scale energy storage systems (ESSs) that can react quickly to fluctuations and store excess are required increase the reliability of electricity grids rely heavily on renewable sources (RESs). Hybrid systems, which combine different technologies such as batteries supercapacitors, becoming increasingly popular because no single technology satisfy all requirements. In this study, a supercapacitor is used stabilize shifting bursts power, while battery gradually fluctuating power flow. This paper proposes robust controller for managing direct current (DC) bus voltage optimize performance ESS. The proposed combines fractional-order proportional integral (FOPI) with classical PI first time in DC microgrid area. hybrid (FOPI-PI) achieves an outstanding superior transient dynamic response specifications compared other traditional controllers. parameters suggested incorporated self-adaptive bonobo optimizer (SaBO) determine optimal values. Furthermore, various optimization techniques applied model SaBO’s output outperforms by minimizing best objective function. addition, study has utilized novel management strategy includes two closed loops both supercapacitors. By using method, batteries’ lifespans may be increased still retaining system performance. implemented MATLAB/Simulink 2022b, outcomes reported several case studies. findings demonstrate control technique remarkably improves response, duration, overshoot/undershoot, settling time. SaBO effective maintaining under load solar variation.

Language: Английский