Global decentralized control for uncertain large-scale feedforward nonlinear time-delay systems via output feedback

Autor:	Yiming Shao, Xianglei Jia, Xinxu Ju, Xiaocheng Shi
Rok vydání:	2021
Předmět:	Control and Optimization Control and Systems Engineering Applied Mathematics
Zdroj:	IMA Journal of Mathematical Control and Information. 39:155-170
ISSN:	1471-6887 0265-0754
DOI:	10.1093/imamci/dnab035
Popis:	In this paper, the problem of global decentralized output feedback control is addressed for a class of large-scale nonlinear systems with zero dynamics and unknown time-varying delay. System disturbance nonlinearities are subject to feedforward growth restrictions with unknown growth rate. In the spirit of dynamic scaling change technique, a novel pair of time-varying-gain observer and controller is proposed. Compared with the existing results, the controller proposed is capable of handling the difficulties caused by the zero-dynamics, the uncertainties and the unknown time-varying delay. With the help of the Razumikhin theorem, it is shown that the closed-loop states asymptotically converge to zero. Finally, the effectiveness of the proposed control scheme is illustrated by a numerical example.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c7e7383df009a1b4b2be4e6d8f0a6e57 https://doi.org/10.1093/imamci/dnab035 Zobrazit plný text záznamu