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Deterministic and stochastic approaches to supervisory control design for networked systems with time-varying communication delays
KTH, School of Electrical Engineering (EES), Automatic Control.ORCID iD: 0000-0003-4733-2240
KTH, School of Electrical Engineering (EES), Automatic Control.
2013 (English)In: Nonlinear Analysis. Hybrid Systems., ISSN 1751-570X, Vol. 10, no 1, 94-110 p.Article in journal (Refereed) Published
Abstract [en]

This paper proposes a supervisory control structure for networked systems with time-varying delays. The control structure, in which a supervisor triggers the most appropriate controller from a multi-controller unit, aims at improving the closed-loop performance relative to what can be obtained using a single robust controller. Our analysis considers average dwell-time switching and is based on a novel multiple Lyapunov-Krasovskii functional. We develop stability conditions that can be verified by semi-definite programming, and show that the associated state feedback synthesis problem also can be solved using convex optimization tools. Extensions of the analysis and synthesis procedures to the case when the evolution of the delay mode is described by a Markov chain are also developed. Simulations on small and large-scale networked control systems are used to illustrate the effectiveness of our approach.

Place, publisher, year, edition, pages
2013. Vol. 10, no 1, 94-110 p.
Keyword [en]
Linear matrix inequality, Stochastic switched systems, Switched systems, Time-delay systems
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-126033DOI: 10.1016/j.nahs.2013.03.006ISI: 000323856800008ScopusID: 2-s2.0-84881250021OAI: diva2:641810

QC 20130819

Available from: 2013-08-19 Created: 2013-08-19 Last updated: 2013-10-02Bibliographically approved

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