Robust Multivariable Control for Hot Strip Mills
Robust Multivariable Control for Hot Strip Mills
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DOI：
10.2355/isijinternational.40.995
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发表时间：
2000-10
影响因子：
1.8
通讯作者：
G. Hearns;M. Grimble
中科院分区：
文献类型：
--
作者：
G. Hearns;M. Grimble
开发了一种用于热连轧机的多变量调节器，该调节器对于轧机模数的变化是鲁棒稳定的，同时仍然提供高的带材厚度精度。这与常规的自动厚度控制相反，常规的自动厚度控制必须牺牲标称性能以提供鲁棒稳定性。分析了多变量H ∞控制器和常规控制器的性能和稳定性，并利用非线性仿真证明了多变量控制器的优点。
A multivariable regulator for a hot strip mill is developed which is robustly stable for changes to the mill modulus while still providing high strip thickness accuracy. This is in contrast to the conventional automatic gauge control which has to trade of nominal performance to provide robust stability. The performance and stability off the multivariable .H'∞ controller and the conventional controller are analysed and the benefits of the multivariable controller is demonstrated using a nonlinear simulation.