中国电机工程学报2024，Vol.44Issue(2)：476-488,中插4,14.DOI:10.13334/j.0258-8013.pcsee.222048
事件触发改进一致性算法的孤岛运行多逆变器微电网系统分布式二次调频方法
Event-triggered Improved Consensus Algorithm Distributed Secondary Frequency Regulation of Multi-inverter Microgrid Systems With Islanded Operation
摘要
Abstract
Consensus algorithm is commonly used for distributed secondary frequency regulation control of multi-inverter parallel microgrid systems operating in isolation,which requires high real-time performance for communication between inverters.An improved consensus algorithm based on frequency compensation signal is adopted and an event trigger mechanism based on the frequency error crossing limit is designed,which can maintain the existing droop relationship between inverters and realize the secondary frequency regulation of a multi-inverter microgrid system operating in islanded mode at the same time.Meanwhile,based on this event triggered mechanism and Lyapunov function,the minimum trigger time lower bound is obtained,which completely avoids the phenomenon of infinite event triggers in a short period of time.Finally,MATLAB/Simulink is used to simulate the operation of an islanded microgrid system containing four inverters in parallel.The results show that the communication volume of the proposed method is reduced by more than 99%compared with the basic consistency algorithm used in the literature,and the minimum trigger time interval is extended to the order of tens of milliseconds.In the meantime,the dynamic performance of the microgrid system is better because the proposed method does not use the power differential signal.关键词
孤岛微电网系统/分布式二次调频/改进一致性算法/事件触发/李雅普诺夫函数Key words
islanded microgrid/distributed secondary frequency regulation/improved consensus algorithm/event triggered/Lyapunov function分类
信息技术与安全科学引用本文复制引用
董家伟,龚春阳,包俊,朱国忠,王志新..事件触发改进一致性算法的孤岛运行多逆变器微电网系统分布式二次调频方法[J].中国电机工程学报,2024,44(2):476-488,中插4,14.基金项目
国家重点研发计划项目(2018YFB1503000,2018YFB 1503001) （2018YFB1503000,2018YFB 1503001）
上海市科委科技计划项目(21DZ1207300). National Key R&D Program of China(2018YFB1503000,2018YFB1503001) （21DZ1207300）
Fund of Shanghai Science and Technology Development(21DZ1207300). （21DZ1207300）
