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Titolo:
Robust performance assessment of feedback control systems
Autore:
Wan, S; Huang, B;
Indirizzi:
Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2G6, Canada Univ Alberta Edmonton AB Canada T6G 2G6 ngn, Edmonton, AB T6G 2G6, Canada
Titolo Testata:
AUTOMATICA
fascicolo: 1, volume: 38, anno: 2002,
pagine: 33 - 46
SICI:
0005-1098(200201)38:1<33:RPAOFC>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
CONTROL LOOP PERFORMANCE; UNCERTAINTY;
Keywords:
performance evaluation; performance monitoring; robust performance; robust stability; identification; closed-loop systems;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Huang, B Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2G6, Canada Univ Alberta Edmonton AB Canada T6G 2G6 nton, AB T6G 2G6, Canada
Citazione:
S. Wan e B. Huang, "Robust performance assessment of feedback control systems", AUTOMATICA, 38(1), 2002, pp. 33-46

Abstract

The proper measure of closed-loop performance variation in the presence ofmodel-plant mismatch is discussed in this paper. A generalized closed-looperror transfer function, which is a special representation of the dual Youla parameter and has a close relationship with the pointwise v-gap metric, is proposed as the suitable means of representing closed-loop performance variation in case of plant perturbation, and the closed-loop performance variation measure is accordingly defined as its maximum singular value frequency by frequency. It is shown that this measure is essential and informativein characterizing closed-loop performance variation, This measure is also shown to be readily applicable to on-line closed-loop performance assessment or monitoring, even without the explicit model of the plant. Its variant,defined as the eta -function, which features the relative performance variation as well as generalized stability margin variation with respect to thenominal plant, is also discussed. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/05/20 alle ore 15:51:57