Event-Triggered Adaptive Fuzzy Output-Feedback Control for Nonstrict-Feedback Nonlinear Systems With Asymmetric Output Constraint

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Article number9019851
Pages (from-to)712-722
Number of pages11
Journal / PublicationIEEE Transactions on Cybernetics
Volume52
Issue number1
Online published2 Mar 2020
Publication statusPublished - Jan 2022

Abstract

This article addresses the event-triggered adaptive fuzzy output-feedback control problem for a class of nonstrict-feedback nonlinear systems with asymmetric and time-varyingoutput constraints, as well as unknown nonlinear functions. By designing a linear observer to estimate the unmeasurable states,a novel event-triggered adaptive fuzzy output-feedback controls cheme is proposed. The barrier Lyapunov function (BLF) and the error transformation technique are used to handle the output constraint under a completely unknown initial tracking condition. It is shown that with the proposed control scheme, all the solutions of the closed-loop system are semiglobally bounded, and the tracking error converges to a small set near zero, while the output constraint is satisfied within a predetermined finite time,even when the constraint condition is violated initially. Moreover,with the proposed event-triggering mechanism (ETM), the Zeno behavior can be strictly ruled out. An example is finally provided to demonstrate the effectiveness of the proposed control method.

Research Area(s)

  • Adaptive fuzzy control, barrier Lyapunov function (BLF), event-triggered control, nonstrict-feedback nonlinear systems

Citation Format(s)

Event-Triggered Adaptive Fuzzy Output-Feedback Control for Nonstrict-Feedback Nonlinear Systems With Asymmetric Output Constraint. / Wang, Anqing; Liu, Lu; Qiu, Jianbin et al.
In: IEEE Transactions on Cybernetics, Vol. 52, No. 1, 9019851, 01.2022, p. 712-722.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review