Chattering-free digital sliding-mode control with state observer and disturbance rejection - Archive ouverte HAL Accéder directement au contenu
Rapport (Rapport De Recherche) Année : 2010

Chattering-free digital sliding-mode control with state observer and disturbance rejection

Résumé

In this paper a novel discrete-time implementation of sliding-mode control systems is proposed, which fully exploits the multivaluedness of the dynamics on the sliding surface. It is shown to guarantee a smooth stabilization on the discrete sliding surface in the disturbance-free case, hence avoiding the chattering effects due to the time-discretization. In addition when a disturbance acts on the system, the controller attenuates the disturbance effects on the sliding surface by a factor h (where h is the sampling period). Most importantly this holds even for large h. The controller is based on an implicit Euler method and is very easy to implement with projections on the interval [-1,1] (or as the solution of a quadratic program). The zero-order-hold (ZOH) method is also investigated. First and second order perturbed systems (with a disturbance satisfying the matching condition) without and with dynamical disturbance compensation are analyzed, with classical and twisted sliding-mode controllers.
Fichier principal
Vignette du fichier
RR-7326.pdf (517.53 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

inria-00494417 , version 1 (23-06-2010)
inria-00494417 , version 2 (02-07-2010)

Identifiants

  • HAL Id : inria-00494417 , version 2

Citer

Vincent Acary, Bernard Brogliato, Yury Orlov. Chattering-free digital sliding-mode control with state observer and disturbance rejection. [Research Report] RR-7326, INRIA. 2010. ⟨inria-00494417v2⟩
483 Consultations
567 Téléchargements

Partager

Gmail Facebook X LinkedIn More