Looper H-infinity control for hot strip mills
Looper H-infinity control for hot strip mills
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DOI：
10.1109/ias.1995.530574
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发表时间：
1995-10
期刊：
影响因子：
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通讯作者：
H. Imanari;Y. Morimatsu;K. Sekiguchi;H. Ezure;Rituo Matuoka;A. Tokuda;H. Otobe
中科院分区：
文献类型：
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作者：
H. Imanari;Y. Morimatsu;K. Sekiguchi;H. Ezure;Rituo Matuoka;A. Tokuda;H. Otobe
H_∞控制理论已被应用于包括炼钢过程在内的许多工程领域。H_∞控制理论使多变量控制的频域设计方法成为可能，从而得到鲁棒稳定的控制系统。作者研制了热连轧精轧米尔斯机组活套H_∞多变量控制系统，取得了比常规控制方法更好的控制效果。活套控制是热连轧米尔斯机组最重要的控制手段之一。活套安装在每个轧机机架之间，控制机架间的带钢张力。将活套张力和带钢张力稳定地控制在各自的目标值是非常重要的。特别是，作者打算减少带钢张力波动比活套角度波动，因为带钢张力严重影响厚度和宽度厚度。本文介绍活套H ∞控制系统的设计方法。并给出了一些实际控制数据，比较了传统PI控制、非交互控制和H ∞控制的性能。
The H-infinity control theory has been applied to some engineering fields including the steel making process. The H-infinity control theory makes it possible to apply multivariable control with frequency domain design method and to get robust stable control systems. The author developed a looper H-infinity multivariable control system for hot strip finishing mills, and have obtained better results than conventional control methods. The looper control is one of the most important control methods in hot strip mills. The loopers are placed between each rolling stand, and control the interstand strip tension. It is very important to control stably both looper and strip tension at each of their target values. Especially, the authors intended to reduce strip tension fluctuation than looper angle fluctuation, because strip tension severely affects thickness and width gage. This paper presents the design method of the looper H-infinity control system. Also showing some actual control data, they compare the performance of conventional PI control, noninteractive control, and H-infinity control.