Observer-based sliding mode control for nonlinear state-delayed systems

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Pages (from-to)139-150
Journal / PublicationInternational Journal of Systems Science
Volume35
Issue number2
Publication statusPublished - 15 Feb 2004

Abstract

An observer-based sliding mode control problem is studied for state-delayed systems with immeasurable slates and nonlinear uncertainties. The main advantage of the proposed scheme is that it eliminates the need for state variables to be fully accessible for its control. This is possible through the use of a sliding mode controller, which performs its control by employing state estimates obtained from the sliding mode observer. By means of linear matrix inequalities, a sufficient condition is then given to ensure the asymptotic stability of the overall closed-loop stale-delayed system composed of the observer dynamics and the estimation error dynamics. Furthermore, it is shown that the proposed control scheme ensures the reachability of the sliding surfaces in both the state estimate space and the estimation error space.

Citation Format(s)

Observer-based sliding mode control for nonlinear state-delayed systems. / Niu, Y.; Lam, J.; Wang, X. et al.
In: International Journal of Systems Science, Vol. 35, No. 2, 15.02.2004, p. 139-150.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review