Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/162385
Title: Adaptive backstepping control for fractional-order nonlinear systems with external disturbance and uncertain parameters using smooth control
Authors: Li, Xinyao
Wen, Changyun
Zou, Ying
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2020
Source: Li, X., Wen, C. & Zou, Y. (2020). Adaptive backstepping control for fractional-order nonlinear systems with external disturbance and uncertain parameters using smooth control. IEEE Transactions On Systems, Man and Cybernetics: Systems, 51(12), 7860-7869. https://dx.doi.org/10.1109/TSMC.2020.2987335
Project: MOE2017-T2-1-050
Journal: IEEE Transactions on Systems, Man and Cybernetics: Systems
Abstract: In this article, we consider controlling a class of single-input-single-output (SISO) commensurate fractional-order nonlinear systems with parametric uncertainty and external disturbance. Based on backstepping approach, an adaptive controller is proposed with adaptive laws that are used to estimate the unknown system parameters and the bound of unknown disturbance. Instead of using discontinuous functions such as the sign function, an auxiliary function is employed to obtain a smooth control input that is still able to achieve perfect tracking in the presence of bounded disturbances. Indeed, global boundedness of all closed-loop signals and asymptotic perfect tracking of fractional-order system output to a given reference trajectory are proved by using fractional directed Lyapunov method. To verify the effectiveness of the proposed control method, simulation examples are presented.
URI: https://hdl.handle.net/10356/162385
ISSN: 2168-2216
DOI: 10.1109/TSMC.2020.2987335
Rights: © 2020 IEEE. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Journal Articles

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