Title :
Robust identification and control with time-varying parameter perturbations
Author :
Ahmed-Ali, Tarek ; Floret, Fabienne ; Lamnabhi-Lagarrigue, Francoise
Author_Institution :
ENSIETA, Brest, France
Abstract :
This paper is dedicated to the identification of parameters for a reasonably large class of nonlinear systems. We propose to design a direct parameter identification method in open loop and an indirect one in closed loop using the variable structure theory. The exponential convergence of parameter identifiers in both cases is studied. Finally, we highlight some robustness properties of the method with respect to bounded parameter perturbations.
Keywords :
closed loop systems; convergence; nonlinear systems; open loop systems; parameter estimation; perturbation techniques; stability; time-varying systems; variable structure systems; bounded parameter perturbations; closed loop operation; exponential convergence; nonlinear systems; open loop operation; parameter identification; parameter identifiers; robustness analysis; time varying parameter perturbations; variable structure theory; Additive noise; Control systems; Convergence; Nonlinear control systems; Nonlinear systems; Open loop systems; Parameter estimation; Robust control; Robustness; Time varying systems;
Conference_Titel :
American Control Conference, 2003. Proceedings of the 2003
Print_ISBN :
0-7803-7896-2
DOI :
10.1109/ACC.2003.1243352
