2018 |
Gasmi, N.; Boutayeb, M.; Thabet, A.; Aoun, M. H∞ Observer-Based Controller for Lipschitz Nonlinear Discrete-Time Systems Conférence Institute of Electrical and Electronics Engineers Inc., 2018, ISBN: 9781538678909, (cited By 0). Résumé | Liens | BibTeX | Étiquettes: Bilinear matrix; Design Methodology; Design problems; Lipschitz property; Nonlinear discrete-time systems; Observer-based; Observer-based controllers; Slack variables, Controllers, Digital control systems; Discrete time control systems; Linear matrix inequalities; Robustness (control systems) @conference{Gasmi2018771, Within the paper, a relevant H∞observer-based controller design for a class of Lipschitz nonlinear discrete-time systems is proposed. Usually, Bilinear Matrix Inequaities (BMIs) are obtained from the resolution of the observer-based stabilization design problem for this class of systems. Since, the resolution of a BMI is a hard task, then it is interesting to search for a convenient way to linearize the obtained conditions. Therefore, the objective of this paper is to present new Linear Matrix Inequality (LMI) conditions ensuring the convergence of the observer-based controller in a noisy context. Thanks to the introduction of a slack variable the presented LMI conditions are more general and less conservative than the existence ones. Indeed, reformulations of the Lipschitz property and Young’s relation in a convenient way lead to a more relaxed new LMI. A numerical example is implemented to show high performances of the proposed design methodology with respect to some existing results. © 2018 IEEE. |
Publications
2018 |
H∞ Observer-Based Controller for Lipschitz Nonlinear Discrete-Time Systems Conférence Institute of Electrical and Electronics Engineers Inc., 2018, ISBN: 9781538678909, (cited By 0). |