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Output-Based and Decentralized Dynamic Event-Triggered Control With Guaranteed <span class="MathJax_Preview" style="">\mathcal{L}_{p}</span><script type="math/tex" id="MathJax-Element-1">\mathcal{L}_{p}</script>- Gain Performance and Zeno-Freeness | IEEE Journals & Magazine | IEEE Xplore

Output-Based and Decentralized Dynamic Event-Triggered Control With Guaranteed \mathcal{L}_{p}- Gain Performance and Zeno-Freeness


Abstract:

Networked control systems are often subject to limited communication resources. By only communicating output measurements when needed, event-triggered control is an adequ...Show More

Abstract:

Networked control systems are often subject to limited communication resources. By only communicating output measurements when needed, event-triggered control is an adequate method to reduce the usage of communication resources while retaining desired closed-loop performance. In this work, a novel event-triggered control (ETC) strategy for a class of nonlinear feedback systems is proposed that can simultaneously guarantee a finite Lp-gain and a strictly positive lower bound on the inter-event times. The new ETC scheme can be synthesized in an output-based and/or decentralized form, takes the specific medium access protocols into account, and is robust to (variable) transmission delays by design. Interestingly, in contrast with the majority of existing event-generators that only use static conditions, the newly proposed event-triggering conditions are based on dynamic elements, which has several advantages including larger average inter-event times. The developed theory leads to families of event-triggered controllers that correspond to different tradeoffs between (minimum and average) inter-event times, maximum allowable delays and Lp-gains. A linear and a nonlinear numerical example will illustrate all the benefits of this new dynamic ETC scheme.
Published in: IEEE Transactions on Automatic Control ( Volume: 62, Issue: 1, January 2017)
Page(s): 34 - 49
Date of Publication: 01 March 2016

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