Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/91433
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Title: Saturated adaptive barrier sliding mode control with state-dependent uncertainty limit
Authors: Ma, H
Liu, W
Li, Y 
Liu, Z
Tian, S
Issue Date: Sep-2021
Source: IET control theory and applications, Sept. 2021, v. 15, no. 13, p. 1762-1768
Abstract: This paper proposed a saturated adaptive barrier sliding mode control (SABSMC) for disturbed systems with parameter uncertainty, external disturbance, and input saturation. One distinctive feature of the proposed method is that even under the influence of input saturation, it is able to drive the system trajectory into a prespecified neighbourhood of the sliding surface, independent of the upper limit of lumped disturbance. Moreover, attributing to the designed adaptive laws, the switching gain of the proposed method can be adaptively adjusted in a wise manner. Another attractive feature of the proposed method is that it removes any presumption of constant upper limit on the lumped disturbance. Instead, SABSMC utilises a more rational state-dependent upper limit assumption. The system dynamics of the closed-loop system is analysed via the Lyapunov method in the presence of parameter uncertainty, external disturbance, and input saturation. The effectiveness of the proposed method is confirmed through numerical simulations.
Publisher: Institution of Engineering and Technology
Journal: IET control theory and applications 
ISSN: 1751-8644
EISSN: 1751-8652
DOI: 10.1049/cth2.12157
Rights: © 2021 The Authors. IET Control Theory & Applications published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology
This is an open access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
The following publication Ma, H., Liu, W., Li, Y., Liu, Z., & Tian, S. (2021). Saturated adaptive barrier sliding mode control with state‐dependent uncertainty limit. IET Control Theory & Applications is available at https://doi.org/10.1049/cth2.12157
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