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Networked Control with a Stochastic Scheduling: a Time-Delay  Approach
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-7273-4394
Tel Aviv University.
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-9940-5929
2014 (English)In: The 19th World Congress of IFAC, 2014Conference paper, Published paper (Refereed)
Abstract [en]

This paper is concerned with the stability analysis of networked control systems with communication constraints, variable delays and variable sampling intervals.The scheduling of sensor communication is defined by a stochastic protocol.The activation probability of each sensor node is a given constant, whereas it is assumed that collisions occur with a certain probability.The resulting closed-loop system is a stochastic impulsive system withdelays in the continuous dynamics and in the reset equations. The system matrices have stochastic parameters with Bernoulli distributions.Sufficient conditions for the exponential mean-square stabilityare derived via a Lyapunov-Krasovskii-based method. The efficiency of the method is illustrated on the examples of a cart-pendulum system and a batch reactor.It is demonstrated how our time-delay approach allows treating network-induced delays larger thanthe sampling intervals.

Place, publisher, year, edition, pages
2014.
Series
IFAC Proceedings Volumes (IFAC-PapersOnline), ISSN 1474-6670
Keyword [en]
networked control systems, Lyapunov functional, stochastic protocol, stochastic impulsive system
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:kth:diva-136254Scopus ID: 2-s2.0-84929773752ISBN: 9783902823625 (print)OAI: oai:DiVA.org:kth-136254DiVA: diva2:675656
Conference
The 19th World Congress of IFAC, Cape Town, South Africa, 24-29 August 2014
Funder
Knut and Alice Wallenberg FoundationSwedish Research Council
Note

QC 20131218

Available from: 2013-12-04 Created: 2013-12-04 Last updated: 2015-10-12Bibliographically approved

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KunIFAC2014(184 kB)119 downloads
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Liu, KunHenrik Johansson, Karl

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