Modeling, simulation and identification for control of tandem cold metal rolling

Materials Research

Péricles Guedes Alves²  José Adilson De Castro²  Luciano Pessanha Moreira²  Elder Moreira Hemerly¹ 

[1] ,Universidade Federal Fluminense Escola de Engenharia Industrial Metalúrgica de Volta Redonda Volta Redonda RJ ,Brazil

关键词: rolling mill control;    tandem cold rolling;    process simulation;    mathematical model;    system identification;   

DOI  :  10.1590/S1516-14392012005000137

来源: SciELO

【 摘 要 】

This paper describes a modeling procedure for tandem cold metal rolling, including the linearization step and system identification for control. The tandem cold rolling process is described by a mathematical model based on algebraic equations developed for control purposes and empirical relations. A state-space model is derived and detailed analyses in open loop are presented, concerning the sensitivity with regard to the variations in process parameters and results for the application of a new subspace identification method are compared with classical methodologies. Therefore, this work intents to be a contribution for developments in new control strategies for tandem cold rolling process that offer the potential to reduce the design efforts, the commissioning time and maintenance in rolling mills. The preliminary results obtained with this model have shown reasonable agreement with operational data presented at literature for industrial cold rolling process.

【 授权许可】

CC BY   
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