Optimal Cooperative Secondary Control for Islanded DC Microgrids via a Fully Actuated Approach

doi:10.1109/JAS.2023.123942

CORC > 自动化研究所 > 中国科学院自动化研究所 > 学术期刊 > IEEE/CAA Journal of Automatica Sinica

	Optimal Cooperative Secondary Control for Islanded DC Microgrids via a Fully Actuated Approach
	Yi Yu; Guo-Ping Liu; Yi Huang; Peng Shi
刊名	IEEE/CAA Journal of Automatica Sinica
	2024
卷号	11 期号:2 页码:405-417
关键词	DC microgrids distributed control high-order fully actuated system approach linear quadratic regulator microgrid modeling secondary control
ISSN号	2329-9266
DOI	10.1109/JAS.2023.123942
英文摘要	DC-DC converter-based multi-bus DC microgrids (MGs) in series have received much attention, where the conflict between voltage recovery and current balancing has been a hot topic. The lack of models that accurately portray the electrical characteristics of actual MGs while is controller design-friendly has kept the issue active. To this end, this paper establishes a large-signal model containing the comprehensive dynamical behavior of the DC MGs based on the theory of high-order fully actuated systems, and proposes distributed optimal control based on this. The proposed secondary control method can achieve the two goals of voltage recovery and current sharing for multi-bus DC MGs. Additionally, the simple structure of the proposed approach is similar to one based on droop control, which allows this control technique to be easily implemented in a variety of modern microgrids with different configurations. In contrast to existing studies, the process of controller design in this paper is closely tied to the actual dynamics of the MGs. It is a prominent feature that enables engineers to customize the performance metrics of the system. In addition, the analysis of the stability of the closed-loop DC microgrid system, as well as the optimality and consensus of current sharing are given. Finally, a scaled-down solar and battery-based microgrid prototype with maximum power point tracking controller is developed in the laboratory to experimentally test the efficacy of the proposed control method.
内容类型	期刊论文
源URL	[http://ir.ia.ac.cn/handle/173211/54551]
专题	自动化研究所_学术期刊_IEEE/CAA Journal of Automatica Sinica
推荐引用方式 GB/T 7714	Yi Yu,Guo-Ping Liu,Yi Huang,et al. Optimal Cooperative Secondary Control for Islanded DC Microgrids via a Fully Actuated Approach[J]. IEEE/CAA Journal of Automatica Sinica,2024,11(2):405-417.
APA	Yi Yu,Guo-Ping Liu,Yi Huang,&Peng Shi.(2024).Optimal Cooperative Secondary Control for Islanded DC Microgrids via a Fully Actuated Approach.IEEE/CAA Journal of Automatica Sinica,11(2),405-417.
MLA	Yi Yu,et al."Optimal Cooperative Secondary Control for Islanded DC Microgrids via a Fully Actuated Approach".IEEE/CAA Journal of Automatica Sinica 11.2(2024):405-417.