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Networked control systems in the presence of scheduling protocols and communication delays
KTH, School of Electrical Engineering (EES), Automatic Control. Beijing Institute of Technology, China. (Prof. K.H.Johansson)ORCID iD: 0000-0001-7273-4394
University Lille Nord de France.
2015 (English)In: SIAM Journal of Control and Optimization, ISSN 0363-0129, E-ISSN 1095-7138, Vol. 53, no 4, 1768-1788 p.Article in journal (Refereed) Published
Abstract [en]

This paper develops the time-delay approach to networked control systems in the presence of multiple sensor nodes, communication constraints, variable transmission delays, and sampling intervals. Due to communication constraints, only one sensor node is allowed to transmit its packet at a time. The scheduling of sensor information toward the controller is ruled by a weighted try-once-discard or by round-robin protocols. A unified hybrid system model under both protocols for the closed-loop system is presented; it contains time-varying delays in the continuous dynamics and in the reset conditions. A new Lyapunov-Krasovskii method, which is based on discontinuous in time Lyapunov functionals, is introduced for the stability analysis of the delayed hybrid systems. The resulting conditions can be applied to the system with polytopic type uncertainties. The efficiency of the time-delay approach is illustrated on the examples of uncertain cart-pendulum and of batch reactor.

Place, publisher, year, edition, pages
Society for Industrial and Applied Mathematics, 2015. Vol. 53, no 4, 1768-1788 p.
Keyword [en]
networked control systems, time-delay approach, scheduling protocols, hybrid systems, Lyapunov-Krasovskii method
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:kth:diva-166397DOI: 10.1137/140980570ISI: 000360666700003Scopus ID: 2-s2.0-84940646596OAI: oai:DiVA.org:kth-166397DiVA: diva2:810789
Funder
Knut and Alice Wallenberg FoundationSwedish Research Council
Note

QC 20150930. Updated from Accepted to Published.

Available from: 2015-05-08 Created: 2015-05-08 Last updated: 2017-12-04Bibliographically approved

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