四川轻化工大学学报（自然科学版）2026，Vol.39Issue(1)：45-53,9.DOI:10.11863/j.suse.2026.01.05
基于FFSC-PI的光储系统直流母线电压优化控制方法
Optimization Control Method for DC Bus Voltage in Photovoltaic Energy Storage Systems Based on FFSC-PI
摘要
Abstract
In photovoltaic energy storage systems,to ensure stable energy transfer between the battery and the direct current(DC)bus,and to mitigate issues such as DC bus voltage fluctuations and poor disturbance rejection due to the uncertainty of photovoltaic generation and frequent load disturbances,a control strategy based on feedforward self-coupling proportional-integral(FFSC-PI)control is proposed,developed from the small-signal mathematical model of the bidirectional DC-DC converter.The strategy employs self-coupling proportional-integral(SC-PI)to compensate for system disturbances,coupling the proportional and integral components by introducing a speed factor,and incorporating feedforward control to enhance system robustness.This approach ensures that all gains in SC-PI control share the same physical dimension,while improving the system's disturbance rejection capabilities.Simulation and experimental results demonstrate that,under complex operating conditions,the proposed FFSC-PI control strategy not only maintains stable DC bus voltage but also exhibits superior dynamic response performance compared to dual-loop feedforward proportional-integral(FF-PI)control and SC-PI control strategies.关键词
光储系统/蓄电池/储能双向DC-DC变换器/前馈自耦比例积分控制/STM32F4Key words
photovoltaic energy storage system/battery/bidirectional DC-DC converter/feedforward self-coupling proportional-integral control/STM32F4分类
信息技术与安全科学引用本文复制引用
吴浙勋,林其友,林棋涛,葛愿..基于FFSC-PI的光储系统直流母线电压优化控制方法[J].四川轻化工大学学报（自然科学版）,2026,39(1):45-53,9.基金项目
国家自然科学基金区域创新发展联合基金项目(U21A20146) （U21A20146）
国网安徽省电力有限公司芜湖供电公司科技创新项目(B312C024000A) （B312C024000A）
国网安徽省电力有限公司芜湖市繁昌区供电公司科技创新项目(B612C1240002) （B612C1240002）
