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Computation of stability margins for uncertain linear fractional-order systems / Nataraj, P. S. V. in Transactions of the ASME . Journal of dynamic systems, measurement, and control, Vol. 132 N° 1 (Janvier/Fevrier 2010) 

Public ISBD [article]  in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 132 N° 1 (Janvier/Fevrier 2010) . - 06 p. Titre : Computation of stability margins for uncertain linear fractional-order systems Type de document : texte imprimé Auteurs : Nataraj, P. S. V., Auteur ; Rambabu Kalla, Auteur Année de publication : 2010 Article en page(s) : 06 p. Note générale : Systèmes dynamiques Langues : Anglais (eng) Mots-clés : Constraint  theory  Gas  turbine  power  stations  Linear  systems  Stability  Uncertain  systems Index. décimale : 629.8 Résumé : The present paper proposes an algorithm for finding the stability margins and cross over frequencies for an uncertain fractional-order system using the interval constraint propagation technique. It is first shown that the problem of finding the stability margins and crossover frequencies can be formulated as an interval constraint satisfaction problem and then solved using the branch and prune algorithm. The algorithm guarantees that the stability margins and the crossover frequencies are computed to the prescribed accuracy. The proposed algorithm is demonstrated on a noninductive cable system and also on a practical application of a gas turbine plant. DEWEY : 629.8 ISSN : 0022-0434 En ligne : http://asmedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JDSMAA00013200 [...] [article] Computation of stability margins for uncertain linear fractional-order systems [texte imprimé] / Nataraj, P. S. V., Auteur ; Rambabu Kalla, Auteur . - 2010 . - 06 p. Systèmes dynamiques Langues : Anglais (eng) in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 132 N° 1 (Janvier/Fevrier 2010) . - 06 p. Mots-clés : Constraint  theory  Gas  turbine  power  stations  Linear  systems  Stability  Uncertain  systems Index. décimale : 629.8 Résumé : The present paper proposes an algorithm for finding the stability margins and cross over frequencies for an uncertain fractional-order system using the interval constraint propagation technique. It is first shown that the problem of finding the stability margins and crossover frequencies can be formulated as an interval constraint satisfaction problem and then solved using the branch and prune algorithm. The algorithm guarantees that the stability margins and the crossover frequencies are computed to the prescribed accuracy. The proposed algorithm is demonstrated on a noninductive cable system and also on a practical application of a gas turbine plant. DEWEY : 629.8 ISSN : 0022-0434 En ligne : http://asmedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JDSMAA00013200 [...]