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High gain observer for a three-cell chopper: ...
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Document type :
Article dans une revue scientifique
DOI :
10.1002/rnc.3063
Title :
High gain observer for a three-cell chopper: Design and experimental results
Author(s) :
Ghanes, Malek [Auteur]
Électronique et Commande des Systèmes Laboratoire [ECS-Lab]
Trabelsi, Mohamed [Auteur]
Lin-Shi, Xuefang [Auteur]
Barbot, Jean-Pierre [Auteur]
Électronique et Commande des Systèmes Laboratoire [ECS-Lab]
Non-Asymptotic estimation for online systems [NON-A]
Rétif, Jean-Marie [Auteur]
Ampère [AMPERE]
Busawon, Krishna [Auteur]
Journal title :
International Journal of Robust and Nonlinear Control
Pages :
1090-1103
Publisher :
Wiley
Publication date :
2013-09-16
ISSN :
1049-8923
HAL domain(s) :
Mathématiques [math]/Systèmes dynamiques [math.DS]
English abstract : [en]
As capacitor voltages are necessary for the three-cell DC-DC chopper control, the estimation of such voltages by an observer is attractive solution in terms of cost. However, due to the hybrid behavior of this structure, ...
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As capacitor voltages are necessary for the three-cell DC-DC chopper control, the estimation of such voltages by an observer is attractive solution in terms of cost. However, due to the hybrid behavior of this structure, the capacitor voltages may be partially or even not observable for a given switching configuration. In other words, the observability matrix associated to the capacitor voltages never has a full rank. In order to make the observer conceivable, this paper proposes a new design by establishing sufficient conditions under which the capacitor voltages can be reconstructed within appropriate specific switching sequence and not necessarily instantly. An interconnected high gain observer is then designed for the considered structure. Furthermore, the analysis of convergence is given according to specific switching sequence, and the bounds of the observer tuning parameters are numerically verified. A significant load current benchmark including a three-cell chopper is used as prototype to show the performance and the effectiveness of the proposed observer.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Collections :
  • Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189
Source :
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