ODE-based modelling and calibration of temperatures in steelmaking ladles / Par Samuelsson in IEEE Transactions on control systems technology, Vol. 18 N° 2 (Mars 2010)  

Public ISBD [article]  inIEEE Transactions on control systems technology > Vol. 18 N° 2 (Mars 2010) . - pp. 474-479 Titre : ODE-based modelling and calibration of temperatures in steelmaking ladles Type de document : texte imprimé Auteurs : Par Samuelsson, Auteur ; Bjorn Sohlberg, Auteur Année de publication : 2011 Article en page(s) : pp. 474-479 Note générale : Génie Aérospatial Langues : Anglais (eng) Mots-clés : Continuous casting Distributed parameter systems Grey-box modelling Steelmaking ladles Index. décimale : 629.1 Résumé : This brief considers modelling of steel and wall temperatures in steelmaking ladles used as liquid steel transportation vessels. Two measurement campaigns in order to collect data for model calibration and validation were conducted at the facilities of a Swedish stainless steel manufacturer. The process data were utilized in order to calibrate and validate an ordinary differential equation (ODE) model using a grey-box approach. The grey-box approach is justified since model structure and parameters are only partially known and few data are available for calibration. It is concluded that even though the model structure is non-complicated, the model shows promising accuracy for the steel temperature estimation. The model will be further evaluated in online simulations at the steel mill. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5109475 [article] ODE-based modelling and calibration of temperatures in steelmaking ladles [texte imprimé] / Par Samuelsson, Auteur ; Bjorn Sohlberg, Auteur . - 2011 . - pp. 474-479. Génie Aérospatial Langues : Anglais (eng) in IEEE Transactions on control systems technology > Vol. 18 N° 2 (Mars 2010) . - pp. 474-479 Mots-clés : Continuous casting Distributed parameter systems Grey-box modelling Steelmaking ladles Index. décimale : 629.1 Résumé : This brief considers modelling of steel and wall temperatures in steelmaking ladles used as liquid steel transportation vessels. Two measurement campaigns in order to collect data for model calibration and validation were conducted at the facilities of a Swedish stainless steel manufacturer. The process data were utilized in order to calibrate and validate an ordinary differential equation (ODE) model using a grey-box approach. The grey-box approach is justified since model structure and parameters are only partially known and few data are available for calibration. It is concluded that even though the model structure is non-complicated, the model shows promising accuracy for the steel temperature estimation. The model will be further evaluated in online simulations at the steel mill. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5109475

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