DocumentCode :
336676
Title :
A simple redesign of model reference adaptive control system and its robustness
Author :
Miyasato, Yoshihiko
Author_Institution :
Inst. of Stat. Math., Tokyo, Japan
Volume :
3
fYear :
1998
fDate :
1998
Firstpage :
2880
Abstract :
A simplified design method of model reference adaptive control systems is proposed. In the scheme, the structure of the overall control system does not become so complex as relative degrees of controlled processes grow larger, and the stability conditions of error systems are explicitly reduced to the proper choice of two design parameters (one parameter should be sufficiently large, and the other should be sufficiently small). In the ideal case where no unstructured uncertainty exists, it is shown that overall systems are globally bounded and that magnitude of output errors can be made arbitrary small by adjusting one of those two parameters. When there exist some unstructured uncertainties (such as unmodelled dynamics or disturbances), semiglobal or global boundedness of systems is assured just like the traditional robust adaptive control schemes
Keywords :
control system synthesis; model reference adaptive control systems; robust control; disturbances; error systems; global boundedness; globally bounded systems; model reference adaptive control system; output errors; redesign; relative degrees; robustness; semiglobal boundedness; stability conditions; unmodelled dynamics; unstructured uncertainties; Adaptive control; Adaptive systems; Control systems; Design methodology; Error correction; Polynomials; Process control; Robust control; Stability; Uncertainty;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Decision and Control, 1998. Proceedings of the 37th IEEE Conference on
Conference_Location :
Tampa, FL
ISSN :
0191-2216
Print_ISBN :
0-7803-4394-8
Type :
conf
DOI :
10.1109/CDC.1998.757913
Filename :
757913
Link To Document :
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