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An introduction to event-triggered and self-triggered control
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-9940-5929
2012 (English)In: IEEE 51st Annual Conference on Decision and Control (CDC), 2012, IEEE conference proceedings, 2012, 3270-3285 p.Conference paper, Published paper (Refereed)
Abstract [en]

Recent developments in computer and communication technologies have led to a new type of large-scale resource-constrained wireless embedded control systems. It is desirable in these systems to limit the sensor and control computation and/or communication to instances when the system needs attention. However, classical sampled-data control is based on performing sensing and actuation periodically rather than when the system needs attention. This paper provides an introduction to event- and self-triggered control systems where sensing and actuation is performed when needed. Eventtriggered control is reactive and generates sensor sampling and control actuation when, for instance, the plant state deviates more than a certain threshold from a desired value. Selftriggered control, on the other hand, is proactive and computes the next sampling or actuation instance ahead of time. The basics of these control strategies are introduced together with a discussion on the differences between state feedback and output feedback for event-triggered control. It is also shown how event- and self-triggered control can be implemented using existing wireless communication technology. Some applications to wireless control in process industry are discussed as well.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2012. 3270-3285 p.
Keyword [en]
Actuators, Closed loop systems, Feedback control, Lyapunov methods, Observers, Wireless communication
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-111449DOI: 10.1109/CDC.2012.6425820Scopus ID: 2-s2.0-84874253144ISBN: 978-1-4673-2064-1 (print)OAI: oai:DiVA.org:kth-111449DiVA: diva2:586391
Conference
51st IEEE Conference on Decision and Control 2012, Hawaii, USA
Note

QC 20130114

Available from: 2013-02-12 Created: 2013-01-11 Last updated: 2013-02-12Bibliographically approved

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Johansson, Karl Henrik

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