Title:
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Adaptive finite-time stabilization of chaotic flow with a single unstable node using a nonlinear function-based global sliding mode
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Author:
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Mobayen, Saleh; Ma, Jun; Pujol Vázquez, Gisela; Acho Zuppa, Leonardo; Zhu, Quanmin
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Matemàtiques; Universitat Politècnica de Catalunya. CoDAlab - Control, Modelització, Identificació i Aplicacions |
Abstract:
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This article presents a novel adaptive finite-time stabilization technique based on global sliding mode for disturbed chaotic flow with a single unstable node. The considered chaotic flow has unusual characteristics containing attractor merging, symmetry breaking, attracting tori and different forms of multi-stability. A nonlinear function is employed in the global sliding surface to modify damping ratio and improve the transient performance. The damping ratio of the closed-loop system is improved when the states converge to the origin. Using the new chattering-free controller, the reaching mode is removed and the sliding behavior is presented right from the first instant. The adaptive finite-time tuning law eliminates the requirement of the information about the disturbances’ bounds. Illustrative simulations are provided to display the efficiency of the proposed scheme |
Subject(s):
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-Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica -Àrees temàtiques de la UPC::Informàtica::Automàtica i control -Automatic control -Global sliding mode -Adaptive gain tuning -Finite-time control -Chaotic flow -Unstable node -Control automàtic -Classificació AMS::46 Associative rings and algebras::46T Nonlinear functional analysis |
Rights:
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Document type:
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Article - Published version Article |
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