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On the Trade-Off between Communication and Control Cost in Event-Triggered Dead-Beat Control
KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre. University of Paderborn, Germany.ORCID iD: 0000-0003-4733-2240
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
2016 (English)In: IEEE Transactions on Automatic Control, ISSN 0018-9286, E-ISSN 1558-2523, Vol. PP, no 99, 7562376Article in journal (Refereed) Published
Abstract [en]

We consider a stochastic system where the communication between the controller and the actuator is triggered by a thresholdbased rule. The communication is performed across an unreliable link that stochastically erases transmitted packets. To decrease the communication burden, and as a partial protection against dropped packets, the controller sends a sequence of control commands to the actuator in each packet. These commands are stored in a buffer and applied sequentially until the next control packet arrives. In this context, we study dead-beat control laws and compute the expected linear-quadratic loss of the closed-loop system for any given event-threshold. Furthermore, we provide analytical expressions that quantify the trade-off between the communication cost and the control performance of event-triggered control systems. Numerical examples demonstrate the effectiveness of the proposed technique.

Place, publisher, year, edition, pages
IEEE, 2016. Vol. PP, no 99, 7562376
Keyword [en]
Communication networks, Event-triggering algorithms, Linear systems, Networked control systems, Packet losses, Actuators, Closed loop systems, Control systems, Control theory, Controllers, Economic and social effects, Numerical methods, Packet loss, Stochastic control systems, Stochastic systems, Telecommunication networks, Analytical expressions, Communication and control, Communication cost, Control performance, Deadbeat control, Event-triggered control systems, Event-triggering, Unreliable links
National Category
Communication Systems
URN: urn:nbn:se:kth:diva-195564DOI: 10.1109/TAC.2016.2606590ScopusID: 2-s2.0-84988429015OAI: diva2:1047752

QC 20161118

Available from: 2016-11-18 Created: 2016-11-03 Last updated: 2016-11-18Bibliographically approved

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Demirel, BurakJohansson, Mikael
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