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Robust steering control of hot strip mill / Ivan Malloci in IEEE Transactions on control systems technology, Vol. 18 N° 4 (Juillet 2010) 

Public ISBD [article]  in IEEE Transactions on control systems technology > Vol. 18 N° 4 (Juillet 2010) . - pp. 908-917 Titre : Robust steering control of hot strip mill Type de document : texte imprimé Auteurs : Ivan Malloci, Auteur ; Jamal Daafouz, Auteur ; Claude Iung, Auteur Année de publication : 2011 Article en page(s) : pp. 908-917 Note générale : Génie Aérospatial Langues : Anglais (eng) Mots-clés : Hot  strip  mill  Polytopic  uncertainties  Robustness  Singular  perturbation  Steering  control Index. décimale : 629.1 Résumé : In this paper, a robust steering control is proposed as a means to guarantee the stability of a hot strip finishing mill and improve its performances. The aim of the rolling process is to obtain a metal strip which is uniform and at the desired thickness. The lateral movement of the strip may reduce the quality of the product and damage the rolls. Hence, this displacement must be limited to improve process reliability. Since a hot strip mill treats products with very heterogeneous characteristics, a significant database was created and divided into different families of products. A method for reducing the numerical complexity of the problem exploiting the relation between the different product parameters is also presented. This method yields a convex stabilisation problem. Hence, for each family, a different robust controller is designed. Simulation and experimental results concerning the ArcelorMittal hot strip mill of Eisenhüttenstadt are presented. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5325654 [article] Robust steering control of hot strip mill [texte imprimé] / Ivan Malloci, Auteur ; Jamal Daafouz, Auteur ; Claude Iung, Auteur . - 2011 . - pp. 908-917. Génie Aérospatial Langues : Anglais (eng) in IEEE Transactions on control systems technology > Vol. 18 N° 4 (Juillet 2010) . - pp. 908-917 Mots-clés : Hot  strip  mill  Polytopic  uncertainties  Robustness  Singular  perturbation  Steering  control Index. décimale : 629.1 Résumé : In this paper, a robust steering control is proposed as a means to guarantee the stability of a hot strip finishing mill and improve its performances. The aim of the rolling process is to obtain a metal strip which is uniform and at the desired thickness. The lateral movement of the strip may reduce the quality of the product and damage the rolls. Hence, this displacement must be limited to improve process reliability. Since a hot strip mill treats products with very heterogeneous characteristics, a significant database was created and divided into different families of products. A method for reducing the numerical complexity of the problem exploiting the relation between the different product parameters is also presented. This method yields a convex stabilisation problem. Hence, for each family, a different robust controller is designed. Simulation and experimental results concerning the ArcelorMittal hot strip mill of Eisenhüttenstadt are presented. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5325654