Event-triggered H control: A switching approach

Anton Selivanov, Emilia Fridman

Research output: Contribution to journalArticlepeer-review

Abstract

Event-triggered approach to networked control systems is used to reduce the workload of the communication network. For the static output-feedback continuous event-trigger may generate an infinite number of sampling instants in finite time (Zeno phenomenon) what makes it inapplicable to the real-world systems. Periodic event-trigger avoids this behavior but does not use all the available information. In the present paper we aim to exploit the advantage of the continuous-time measurements and guarantee a positive lower bound on the inter-event times by introducing a switching approach for finding a waiting time in the event-triggered mechanism. Namely, our idea is to present the closed-loop system as a switching between the system under periodic sampling and the one under continuous event-trigger and take the maximum sampling preserving the stability as the waiting time. We extend this idea to the L2-gain and ISS analysis of perturbed networked control systems with network-induced delays. By examples we demonstrate that the switching approach to eventtriggered control can essentially reduce the amount of measurements to be sent through a communication network compared to the existing methods.

Original languageEnglish
Article number7355303
Pages (from-to)3221-3226
Number of pages6
JournalIEEE Transactions on Automatic Control
Volume61
Issue number10
DOIs
StatePublished - 2016

Funding

FundersFunder number
Israel Science Foundation1128/14

    Keywords

    • Networked control systems (NCS)
    • Zeno phenomenon

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