Heuristic-Based Optimal Load Frequency Control with Offsite Backup Controllers in Interconnected Microgrids  

作　　者：Aijia Ding Tingzhang Liu 

机构地区：[1]School of Mechatronic Engineering and Automation,Shanghai University,Shanghai,200444,China

出　　处：《Energy Engineering》2024年第12期3735-3759,共25页能源工程（英文）

摘　　要：The primary factor contributing to frequency instability in microgrids is the inherent intermittency of renewable energy sources.This paper introduces novel dual-backup controllers utilizing advanced fractional order proportional integral derivative(FOPID)controllers to enhance frequency and tie-line power stability in microgrids amid increasing renewable energy integration.To improve load frequency control,the proposed controllers are applied to a two-area interconnectedmicrogrid system incorporating diverse energy sources,such as wind turbines,photovoltaic cells,diesel generators,and various storage technologies.A novelmeta-heuristic algorithm is adopted to select the optimal parameters of the proposed controllers.The efficacy of the advanced FOPID controllers is demonstrated through comparative analyses against traditional proportional integral derivative(PID)and FOPID controllers,showcasing superior performance inmanaging systemfluctuations.The optimization algorithm is also evaluated against other artificial intelligent methods for parameter optimization,affirming the proposed solution’s efficiency.The robustness of the intelligent controllers against system uncertainties is further validated under extensive power disturbances,proving their capability to maintain grid stability.The dual-controller configuration ensures redundancy,allowing them to operate as mutual backups,enhancing system reliability.This research underlines the importance of sophisticated control strategies for future-proofing microgrid operations against the backdrop of evolving energy landscapes.

关 键 词：Fractional order PID interconnected microgrids load frequency control meta-heuristic algorithm parameter optimization 

分 类 号：O17[理学—数学]