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18th IFAC World Congress, IFAC WC'2011, Milan : Italie (2011)
High-order sliding modes and intelligent PID controllers: First steps toward a practical comparison
Samer Riachy 1, 2, Michel Fliess 3, Cédric Join 2, 4
(2011-08-28)

This communication is devoted to a "practical" comparison between high-order sliding modes and the recently introduced model-free control. The perfect knowledge of the relative degree of the output variable, which is a standard assumption for sliding modes, is assumed here. Our comparisons are based on two concrete case-studies and on numerous computer simulations. The smoothness of the input variables, the robustness with respect to noises and the straightforward extendibility of the model-free controllers to MIMO systems are highlighted.
1:  Électronique et Commande des Systèmes Laboratoire (ECS-Lab)
Ecole Nationale Supérieure de l'Electronique et de ses Applications – ENSEA
2:  ALIEN (INRIA Saclay - Ile de France/Inria Lille - Nord Europe)
INRIA – Polytechnique - X – Ecole Centrale de Lille – CNRS : UMR8146
3:  Laboratoire d'informatique de l'école polytechnique (LIX)
CNRS : UMR7161 – Polytechnique - X
4:  Centre de recherche en automatique de Nancy (CRAN)
CNRS : UMR7039 – Université Henri Poincaré - Nancy I – Institut National Polytechnique de Lorraine (INPL)
Computer Science/Automatic Control Engineering

Engineering Sciences/Automatic

Mathematics/Optimization and Control
Nonlinear control – higher-order sliding mode control – model-free control – intelligent PIDs – online parameter estimation.
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