On the Trade-Off between Communication and Control Cost in Event-Triggered Dead-Beat Control
2016 (English)In: IEEE Transactions on Automatic Control, ISSN 0018-9286, E-ISSN 1558-2523, Vol. PP, no 99, 7562376Article in journal (Refereed) Published
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
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
IdentifiersURN: urn:nbn:se:kth:diva-195564DOI: 10.1109/TAC.2016.2606590ScopusID: 2-s2.0-84988429015OAI: oai:DiVA.org:kth-195564DiVA: diva2:1047752
QC 201611182016-11-182016-11-032016-11-18Bibliographically approved