Title :
Observers for Lipschitz nonlinear descriptor systems: Application to unknown inputs systems
Author :
Darouach, M. ; Boutat-Baddas, L.
Author_Institution :
CNRS, Nancy-Univ., Longwy
Abstract :
This paper deals with the design of reduced order observers for a class of nonlinear descriptor systems. The order of these observer is qlesn , where n is the dimension of the semi state. A new method is presented, the conditions for the existence of these observers are given and sufficient conditions for their stability are derived using linear matrix inequalities (LMIs) formulation. A numerical example is presented to demonstrate the effectiveness of the developed method.
Keywords :
linear matrix inequalities; nonlinear control systems; observers; reduced order systems; stability; Lipschitz nonlinear descriptor system; linear matrix inequalities formulation; reduced order observer design; Automatic control; Control systems; Design automation; Linear systems; Nonlinear control systems; Nonlinear systems; Observers; Stability; State estimation; Sufficient conditions; Descriptor systems; Existence conditions; LMI; Reduced order; Stability; Unknown input estimation;
Conference_Titel :
Control and Automation, 2008 16th Mediterranean Conference on
Conference_Location :
Ajaccio
Print_ISBN :
978-1-4244-2504-4
Electronic_ISBN :
978-1-4244-2505-1
DOI :
10.1109/MED.2008.4602261
