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Your search keyword '"Fliess, Michel"' showing total 35 results
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35 results on '"Fliess, Michel"'

33. Closed-loop Parametric Identification for Continuous-time Linear Systems via New Algebraic Techniques.

Author

Grimble, Michael J., Johnson, Michael A., Garnier, Hugues, Wang, Liuping, Fliess, Michel, and Sira-Ramírez, Hebertt

Abstract

A few years ago the present authors launched a new approach to parametric identification of linear continuous-time systems [11]. Its main features may be summarised as follows: closed-loop identification is permitted thanks to the real-time identification scheme;the robustness with respect to noisy data is obtained without knowing the statistical properties of the corrupting noises. [ABSTRACT FROM AUTHOR]

Published
2008
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34. Closed-Loop Fault-Tolerant Control for Uncertain Nonlinear Systems.

Author

Meurer, Thomas, Graichen, Knut, Gilles, Ernst Dieter, Fliess, Michel, Join, Cédric, and Sira-Ramírez, Hebertt

Abstract

We are designing, perhaps for the first time, closed-loop fault-tolerant control for uncertain nonlinear systems. Our solution is based on a new algebraic estimation technique of the derivatives of a time signal, which ∙ yields good estimates of the unknown parameters and of the residuals, i.e., of the fault indicators, ∙ is easily implementable in real time, ∙ is robust with respect to a large variety of noises, without any necessity of knowing their statistical properties. Convincing numerical simulations are provided via a popular case-study in the diagnosis community, namely the three-tank system, which may be characterized as a flat hybrid system. [ABSTRACT FROM AUTHOR]

Published
2005
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35. State feedbacks without asymptotic observers and generalized PID regulators.

Author

Thoma, M., Isidori, Alberto, Lamnabhi-Lagarrigue, Françoise, Respondek, Witold, Fliess, Michel, Marquez, Richard, and Delaleau, Emmanuel

Abstract

For constant linear systems we introduce the class of exact integral observers which yield generalized PID regulators with good robustness properties. When utilized in conjunction with static state feedbacks they permit to bypass classical asymptotic observers. Three illustrative examples are examined:1.a classical PID controller where we replace the derivative term by appropriate integral ones;2.a generalized PID for a second order system with a non-trivial zero dynamics;3.a real DC motor without mechanical sensors. Our approach, which is mainly of algebraic flavour, is based on the module-theoretic framework for linear systems and on operational calculus in Mikusiński's setting. We conclude by discussing possible extensions, especially nonlinear ones. [ABSTRACT FROM AUTHOR]

Published
2000
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