Adaptive Fuzzy Finite-Time Backstepping Control of Nonlinear Systems with Input Constraint and Hysteresis Nonlinearity

Mengmeng Li, Yuan Li, Qinglin Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

This paper investigates the adaptive finite-time tracking control issue for a class of nonlinear systems with input constraint, hysteresis nonlinearity, unmeasured states, and external disturbances. Based on the fuzzy logic systems (FLSs), a fuzzy state observer (FSO) is first designed to estimate the unmeasured states. Then, by using the finite-time stability theory, a novel backstepping control scheme is proposed without constructing the hysteresis inverse. The problem of 'explosion of complexity' caused by the derivative of virtual controllers is eliminated by utilizing the low-pass filter. Furthermore, a saturation dynamic filter is employed to address the input constraint. It is proved that the proposed controller guarantees that all the closed signals are semi-global practical finite-time stability (SGPFS), and the tracking error converges to a neighbourhood of the origin. Finally, simulation results are presented to validate the effectiveness of the proposed control scheme.

Original languageEnglish
Title of host publicationProceedings of the 40th Chinese Control Conference, CCC 2021
EditorsChen Peng, Jian Sun
PublisherIEEE Computer Society
Pages2436-2441
Number of pages6
ISBN (Electronic)9789881563804
DOIs
Publication statusPublished - 26 Jul 2021
Event40th Chinese Control Conference, CCC 2021 - Shanghai, China
Duration: 26 Jul 202128 Jul 2021

Publication series

NameChinese Control Conference, CCC
Volume2021-July
ISSN (Print)1934-1768
ISSN (Electronic)2161-2927

Conference

Conference40th Chinese Control Conference, CCC 2021
Country/TerritoryChina
CityShanghai
Period26/07/2128/07/21

Keywords

  • Backstepping
  • Finite Time Tracking
  • Fuzzy Logic Systems
  • Hysteresis
  • Input Constraint

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