| 引用本文: | 杨斌虎,杨卫东,曲蕾.热轧带钢自动厚度控制鲁棒预测模型与控制策略[J].控制理论与应用,2011,28(6):799~804.[点击复制] |
| YANG Bin-hu,YANG Wei-dong,QU Lei.Robust predictive-model-control strategy for automatic gauge control in hot strip finishing milling[J].Control Theory and Technology,2011,28(6):799~804.[点击复制] |
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| 热轧带钢自动厚度控制鲁棒预测模型与控制策略 |
| Robust predictive-model-control strategy for automatic gauge control in hot strip finishing milling |
| 摘要点击 2441 全文点击 1790 投稿时间：2010-03-22 修订日期：2010-06-18 |
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| DOI编号 10.7641/j.issn.1000-8152.2011.6.CCTA100275 |
| 2011,28(6):799-804 |
| 中文关键词 自动厚度控制 鲁棒控制 预测控制 热轧带钢 H∞滤波器 |
| 英文关键词 automatic gauge control robust control predictive control hot strip mill H-infinity filter |
| 基金项目 |
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| 中文摘要 |
| 研究了热轧带钢自动厚度控制(AGC)鲁棒预测模型与控制问题. 提出了一种全新的AGC动态鲁棒预测模型, 并给出了对应的控制策略. 首先通过弹跳方程, 分析了传统AGC控制模型的局限, 讨论了变刚度AGC与鲁棒控制的联系; 其次, 针对轧机机架间传递的扰动, 在AGC的前馈部分, 引入H∞滤波器, 使得轧件在输送过程中传递的不确定性得到了有效的抑制. 同时, 利用预测控制(MPC)预测机理, 对轧制力进行动态预测, 使得轧制条件迅速优化; 最后用仿真结果表明所提控制策略的有效性与可行性. |
| 英文摘要 |
| A novel dynamic robust predictive-model-control strategy for the automatic gauge control(AGC) is proposed for the hot strip mill. Limitations of traditional AGC are analyzed based on the spring equation; and the relation between the variable stiffness AGC and the robust control is considered. An H-infinity filter is introduced into the forward-feedback loop of AGC to reject the disturbances caused by stand-vibrations in conveying strips. Meanwhile, the rolling force is predicted based on the prediction property of predictive-model-control(MPC) for optimizing the rolling conditions. Simulation results show the feasibility and validity of the proposed control strategy. |
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