Adaptive PI Control of the Hybrid Battery-Supercapacitor Storage in Standalone PV Power System

Engineering notes

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Chinese explanation / 中文解读

中文解读待补充：本站会优先为光伏效率、钙钛矿太阳能电池、储能技术、太阳能热利用、BIPV、并网技术等高价值论文补充中文说明。

Original abstract

This study explores how to improve the safety, reliability, and performance of off-grid Photovoltaic (PV) systems integrated with hybrid batteries and Supercapacitors (SCs) by using Adaptive Proportional-Integral (API) controllers. Adaptive hybrid power management is used to ensure the safety and continuity of the electricity supplied to the DC load and reduce voltage fluctuations owing to abnormal operation. The main contribution of this framework is the online API controller used in hybrid power management, which aims to protect the DC-link against damage and achieve faster performance and improved voltage stability of the power output of the generating system. The system architecture was simulated in MATLAB and included an off-grid PV system integrated with batteries and SCs to maintain a stable DC load. The results of the simulation show that the DC-link voltage instability is improved by the API controller compared to the fixed PI controller, which is fine-tuned by various optimization techniques in the case of sudden environmental and load changes.

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