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

Tengfei Liu, Pengpeng Zhang, Zhong Ping Jiang

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Article number108488
JournalAutomatica
Volume108
DOIs
StatePublished - Oct 2019

Keywords

  • Disturbance
  • Dynamic uncertainty
  • Event-triggered control
  • Input-to-state stabilization

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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