DocumentCode :
3283696
Title :
Adaptive output feedback control of nonlinear systems with nonlinear parameterization: A dwell-time-switching based multiple model adaptive control approach
Author :
Weitian Chen ; Anderson, B.D.O.
Author_Institution :
Dept. of Inf. Eng., Australian Nat. Univ., Canberra, ACT, Australia
fYear :
2010
fDate :
June 30 2010-July 2 2010
Firstpage :
4839
Lastpage :
4844
Abstract :
A dwell-time-switching based MMAC scheme is proposed for the adaptive output feedback control problem of nonlinear systems with nonlinear parameterization. As in, the novel idea of combining the monitoring of the adequacy of candidate models (in terms of their estimation performances) in most MMAC schemes with the monitoring of the performance of the active candidate controller is employed and emphasis has been put on the design of candidate controllers, multiple estimators and monitoring signals so that they possess desirable properties. With the candidate controllers, multiple estimators and monitoring signals being carefully designed, a finite time switching result has been obtained, a characterization on the maximum number of switchings is provided, and sufficient conditions are derived to guarantee closed-loop stability. As an application of the dwell-time-switching based MMAC scheme, a constructive design based on back-stepping is provided for the adaptive output feedback control problem of a special class of nonlinearly parameterized systems, which can satisfy all those sufficient conditions to ensure closed-loop stability.
Keywords :
adaptive control; closed loop systems; control system synthesis; feedback; nonlinear control systems; stability; time-varying systems; active candidate controller; adaptive control; adaptive output feedback control; back-stepping; closed-loop stability; controller design; dwell-time-switching based MMAC scheme; dwell-time-switching based multiple model; estimator; finite time switching; monitoring signal; nonlinear parameterization; nonlinear system; Adaptive control; Control system synthesis; Control systems; Monitoring; Nonlinear control systems; Nonlinear systems; Output feedback; Programmable control; Signal design; Sufficient conditions;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
American Control Conference (ACC), 2010
Conference_Location :
Baltimore, MD
ISSN :
0743-1619
Print_ISBN :
978-1-4244-7426-4
Type :
conf
DOI :
10.1109/ACC.2010.5530896
Filename :
5530896
Link To Document :
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