Title :
Reduced-order observer, homogeneous domination and nonsmooth output feedback stabilization of nonlinear systems
Author :
Lei, Hao ; Lin, Wei
Author_Institution :
Power Plant Lab., Alstom Power Inc., Windsor, CT
Abstract :
In this paper, we study the problem of global stabilization by output feedback for a general class of non-uniformly observable and non-smoothly stabilizable systems with uncertainty. By using a homogeneous domination method, together with a recursive design for the construction of reduced-order observers, we prove that the problem is solvable for a large family of genuinely nonlinear systems with both lower- and higher-order nonlinearities. The focus of this work is to exploit the idea of how to deal with polynomial growth nonlinearities via domination and homogeneity.
Keywords :
control nonlinearities; control system synthesis; feedback; nonlinear systems; observers; stability; uncertain systems; global stabilization; higher-order nonlinearities; homogeneous domination method; nonlinear systems; nonsmooth output feedback stabilization; polynomial growth nonlinearities; recursive design; reduced-order observer; reduced-order observers; Automation; Control systems; Intelligent control; Laboratories; Nonlinear dynamical systems; Nonlinear systems; Output feedback; Polynomials; Power generation; Uncertainty; Global Stabilization; Homogeneous Domination; Low- and High-order Nonlinearities; Output Feedback; Uncontrollable/Unobservable Linearization;
Conference_Titel :
Intelligent Control and Automation, 2008. WCICA 2008. 7th World Congress on
Conference_Location :
Chongqing
Print_ISBN :
978-1-4244-2113-8
Electronic_ISBN :
978-1-4244-2114-5
DOI :
10.1109/WCICA.2008.4592956