Threshold Optimization of Event-Triggered Multi-Loop Control Systems
2016 (English)In: 2016 13TH INTERNATIONAL WORKSHOP ON DISCRETE EVENT SYSTEMS (WODES), IEEE conference proceedings, 2016, 203-210 p.Conference paper (Refereed)
This paper considers multiple linear stochastic control systems whose feedback loops are closed over a shared communication medium. A threshold-based event-triggering rule is used to transmit control commands from the controllers to the actuators, and network access is arbitrated using a static priority mechanism. Under these conditions, we study deadbeat control laws and compute the expected linear-quadratic loss of the closed-loop system as a function of the event-thresholds of the individual loops. Also, we present analytical expressions that quantify the trade-off between the communication cost and the control performance of such event-triggered control systems. Using a multi-dimensional exhaustive search method, we determine the set of event thresholds that attains the minimal expected linear-quadratic loss of the closed-loop systems. Simulation studies highlight the trade-off between the communication and control cost.
Place, publisher, year, edition, pages
IEEE conference proceedings, 2016. 203-210 p.
, International Workshop on Discrete Event Systems, ISSN 1550-5227
Event-triggered control, Deadbeat control, Shared communication channel
IdentifiersURN: urn:nbn:se:kth:diva-193851ISI: 000382860200032ScopusID: 2-s2.0-84981306039ISBN: 978-1-5090-4190-9OAI: oai:DiVA.org:kth-193851DiVA: diva2:1034231
13th International Workshop on Discrete Event Systems (WODES), MAY 30-JUN 01, 2016, Xian, PEOPLES R CHINA
QC 201610112016-10-112016-10-112016-10-11Bibliographically approved