Control Energy and Performance in Hybridized energy storage systems based on Lithium-ion and supercapacitor in isolated DC-Microgrids

2023 Second International Conference on Energy Transition and Security (ICETS)(2023)

引用 0|浏览0
暂无评分
摘要
Nanogrids and Microgrids use decentralized power systems because they are cheaper, simpler, faster, and smaller. Smart infrastructures need reliable power control and energy management to maintain power exchange and supply voltage. This paper examines a photovoltaic (PV) system with a Lithium-ion (Li-ion) battery and a supercapacitor (SC) in a DC-coupled configuration with a single DC Bus to supply DC loads. The control structure comprises dual-closed loops with low-pass-filtering for the hybridized energy storage system (HESS). The paper assists in selecting bus voltage regulators and battery current trackers. Classical, high-order nonlinear, and optimal quadratic controllers are compared for performance evaluation. HESS control experienced pulsing and random PV outputs. Statistical key performance metrics (KPMs) validated the proposed system. Super-Twisting-Sliding-Mode-Control (STSMC) is effective for DC Bus voltage regulation and recovery, despite its slow transient convergence. Despite higher overshoots, the Linear-Quadratuque Regulator-with-Integral-Action (LQRI) performed well with battery current tracking. Despite slow response and high overshoot, PI was competitive. Finally, LQRI and STSMC controllers perform better when combined.
更多
查看译文
关键词
Control Energy,performance,energy storage,DC-Microgrids,stability
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要