Adaptive Optimal Output Regulation of Interconnected Singularly Perturbed Systems With Application to Power Systems

doi:10.1109/JAS.2023.123651

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	Adaptive Optimal Output Regulation of Interconnected Singularly Perturbed Systems With Application to Power Systems
	Jianguo Zhao; Chunyu Yang; Weinan Gao; Linna Zhou; Xiaomin Liu
刊名	IEEE/CAA Journal of Automatica Sinica
	2024
卷号	11 期号:3 页码:595-607
关键词	Adaptive optimal control decentralized control output regulation reinforcement learning (RL) singularly perturbed systems (SPSs)
ISSN号	2329-9266
DOI	10.1109/JAS.2023.123651
英文摘要	This article studies the adaptive optimal output regulation problem for a class of interconnected singularly perturbed systems (SPSs) with unknown dynamics based on reinforcement learning (RL). Taking into account the slow and fast characteristics among system states, the interconnected SPS is decomposed into the slow time-scale dynamics and the fast time-scale dynamics through singular perturbation theory. For the fast time-scale dynamics with interconnections, we devise a decentralized optimal control strategy by selecting appropriate weight matrices in the cost function. For the slow time-scale dynamics with unknown system parameters, an off-policy RL algorithm with convergence guarantee is given to learn the optimal control strategy in terms of measurement data. By combining the slow and fast controllers, we establish the composite decentralized adaptive optimal output regulator, and rigorously analyze the stability and optimality of the closed-loop system. The proposed decomposition design not only bypasses the numerical stiffness but also alleviates the high-dimensionality. The efficacy of the proposed methodology is validated by a load-frequency control application of a two-area power system.
内容类型	期刊论文
源URL	[http://ir.ia.ac.cn/handle/173211/54593]
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	Jianguo Zhao,Chunyu Yang,Weinan Gao,et al. Adaptive Optimal Output Regulation of Interconnected Singularly Perturbed Systems With Application to Power Systems[J]. IEEE/CAA Journal of Automatica Sinica,2024,11(3):595-607.
APA	Jianguo Zhao,Chunyu Yang,Weinan Gao,Linna Zhou,&Xiaomin Liu.(2024).Adaptive Optimal Output Regulation of Interconnected Singularly Perturbed Systems With Application to Power Systems.IEEE/CAA Journal of Automatica Sinica,11(3),595-607.
MLA	Jianguo Zhao,et al."Adaptive Optimal Output Regulation of Interconnected Singularly Perturbed Systems With Application to Power Systems".IEEE/CAA Journal of Automatica Sinica 11.3(2024):595-607.