Adaptive Finite-time Tracking Control of Nonlinear Systems with Dynamics Uncertainties

In this paper, the problem of adaptive backstepping finite-time tracking control is investigated for a class of strict-feedback nonlinear systems with unmodeled dynamics and dynamic disturbances. A modified finite-time dynamic signal is first introduced to dominate the dynamic disturbance. By using...

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Bibliographic Details
Published inIEEE transactions on automatic control Vol. 68; no. 9; pp. 1 - 8
Main Authors Wang, Huanqing, Xu, Ke, Zhang, Huaguang
Format Journal Article
LanguageEnglish
Published New York IEEE 01.09.2023
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Adaptive control
Adaptive systems
Backstepping
backstepping technique
Closed loops
Control systems
Dynamic stability
Dynamical systems
dynamics uncertainties
Feedback control
finite-time control
Nonlinear control
Nonlinear dynamical systems
Nonlinear dynamics
Nonlinear systems
Process control
Stability criteria
Tracking control
tuning functions
Uncertainty
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Summary:In this paper, the problem of adaptive backstepping finite-time tracking control is investigated for a class of strict-feedback nonlinear systems with unmodeled dynamics and dynamic disturbances. A modified finite-time dynamic signal is first introduced to dominate the dynamic disturbance. By using the adaptive control, backstepping technique, and finite-time stability theory, an adaptive finite-time tracking controller is developed. Under the proposed control scheme, the finite-time tracking performance and the boundedness property of all signals in the closed-loop system are ensured. Finally, simulation results check the effectiveness of the suggested approach.
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ISSN:0018-9286
1558-2523
DOI:10.1109/TAC.2022.3226703