A Class of Continuous Predefined-Time Controllers

A class of continuous predefined-time controllers is designed in this paper. The control structure is built upon a class of comparison functions, whose features allow to analyze the predefined-time convergence property in the Lyapunov framework. Rather than providing exact predefined-time convergenc...

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Detalles Bibliográficos
Autores: Jiménez-Rodríguez, Esteban, Muñoz Vázquez, Aldo J., Sánchez-Torres, Juan D., Loukianov, Alexander
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:México
Institución:Instituto Tecnológico y de Estudios Superiores de Occidente
Repositorio:Repositorio Institucional del ITESO
Idioma:inglés
OAI Identifier:oai:rei.iteso.mx:11117/6568
Acceso en línea:https://hdl.handle.net/11117/6568
Access Level:acceso abierto
Palabra clave:Predefined-Time Stability
Sliding Mode Control
Descripción
Sumario:A class of continuous predefined-time controllers is designed in this paper. The control structure is built upon a class of comparison functions, whose features allow to analyze the predefined-time convergence property in the Lyapunov framework. Rather than providing exact predefined-time convergence to the equilibrium point, the proposed controller guarantees uniform predefined-time ultimate predefined boundedness of the solutions, i.e., the capability of setting an arbitrarily desired ultimate bound and an arbitrarily desired convergence time, through an appropriate selection of the controller parameters. Moreover, for a class of second-order systems, an additional analysis is carried out to show finite-gain input-output stability. The reliability of the proposed scheme is highlighted through numerical simulations in a representative example.