DocumentCode :
358877
Title :
Indirect adaptive control for a class of time-varying nonlinear systems
Author :
Ordóñez, Raul ; Passino, Kevin M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Rowan Univ., Glassboro, NJ, USA
Volume :
5
fYear :
2000
fDate :
2000
Firstpage :
3128
Abstract :
In this paper we present an indirect adaptive control method for a class of time-varying nonlinear systems with unknown nonlinearities. We view the time-varying systems as composed of a finite number of “pieces,” which are interpolated by functions that depend on a possibly exogenous scheduling variable. We assume that each piece is in strict feedback form, and show that the indirect adaptive method yields stability of all signals in the closed-loop, as well as convergence of the state vector to a residual set around the equilibrium, whose size can be set by the choice of several design constants. The class of systems considered here is a generalization of the class of strict feedback systems traditionally considered in the backstepping literature
Keywords :
adaptive control; closed loop systems; convergence; feedback; interpolation; nonlinear control systems; stability; time-varying systems; uncertain systems; backstepping literature; closed-loop system; exogenous scheduling variable; generalization; indirect adaptive control; stability; state vector convergence; strict feedback systems; time-varying nonlinear systems; Adaptive control; Backstepping; Convergence; Nonlinear dynamical systems; Nonlinear systems; Signal design; Stability; State feedback; Time varying systems; Uncertainty;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
American Control Conference, 2000. Proceedings of the 2000
Conference_Location :
Chicago, IL
ISSN :
0743-1619
Print_ISBN :
0-7803-5519-9
Type :
conf
DOI :
10.1109/ACC.2000.879141
Filename :
879141
Link To Document :
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