Event-triggered input-to-state stabilization of nonlinear systems subject to disturbances and dynamic uncertainties

This paper studies the design of event-triggered control schemes for nonlinear systems subject to both external disturbances and dynamic uncertainties. To avoid Zeno behavior, this paper proposes an event-triggering mechanism (ETM) that uses not only the measured system state but also an estimation...

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Bibliographic Details
Published inAutomatica (Oxford) Vol. 108; p. 108488
Main Authors Liu, Tengfei, Zhang, Pengpeng, Jiang, Zhong-Ping
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.10.2019
Subjects
Disturbance
Dynamic uncertainty
Event-triggered control
Input-to-state stabilization
Input-to-state stabilization
Dynamic uncertainty
Event-triggered control
Disturbance
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Summary:This paper studies the design of event-triggered control schemes for nonlinear systems subject to both external disturbances and dynamic uncertainties. To avoid Zeno behavior, this paper proposes an event-triggering mechanism (ETM) that uses not only the measured system state but also an estimation of the influence of the external disturbances and dynamic uncertainty. It is shown that the proposed ETM guarantees that the inter-sampling intervals are bounded below by a positive constant, leading to the absence of Zeno phenomenon. Moreover, the closed-loop event-triggered system is input-to-state stable (ISS) with the external disturbance as the input. Nonlinear small-gain tools are refined for stability analysis.
ISSN:0005-1098
1873-2836
DOI:10.1016/j.automatica.2019.07.001