| 引用本文: | 李迅,宋东球,喻寿益,桂卫华.基于模型参考自适应Smith预估器的反馈式AGC厚度控制系统[J].控制理论与应用,2009,26(9):999~1003.[点击复制] |
| LI-Xun,SONG Dong-qiu,YU Shou-yi,GUI Wei-hua.Feedback automatic gauge control system using model reference adaptive Smith predictor[J].Control Theory and Technology,2009,26(9):999~1003.[点击复制] |
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| 基于模型参考自适应Smith预估器的反馈式AGC厚度控制系统 |
| Feedback automatic gauge control system using model reference adaptive Smith predictor |
| 摘要点击 2774 全文点击 2297 投稿时间：2008-06-27 修订日期：2008-11-26 |
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| DOI编号 10.7641/j.issn.1000-8152.2009.9.CCTA080669 |
| 2009,26(9):999-1003 |
| 中文关键词 轧制 Smith预估器 反馈式AGC 模型参考自适应 |
| 英文关键词 rolling Smith predictor feedback automatic gauge control model reference adaptive |
| 基金项目 国家自然科学重点基金资助项目(60634020). |
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| 中文摘要 |
| 针对具有纯时间延迟特性的反馈式AGC(automatic gauge control)系统, 利用Smith 预估器对纯时间延迟具有补偿作用的原理, 建立了模型参考自适应Smith 预估器反馈式AGC 控制系统模型, 给出了控制系统结构. 推导了自适应调节律和设计算法, 结合预估器模型, 计算得到轧件出口厚度偏差值的表达式.仿真结果表明, 模型参考自适应Smith 预估器反馈式AGC 系统对铝薄板带材轧制出口厚度偏差控制具有很好的控制效果, 解决了反馈式AGC 厚度控制由于纯时间延迟特性对控制性能产生很大影响的问题, 消除了出口厚度波动现象, 响应速度加快, 可以满足高精度铝薄板带材轧制生产的控制要求. |
| 英文摘要 |
| Based on the compensating principle of Smith predictor for the time-delay process, we build a modelreference-adaptive(MRA) Smith-predictor feedback control model for the automatic-gauge-control(AGC) system. The structure of the control system is determined, the design algorithm and the adaptive modulation principle are derived. Combining the MRA Smith-predictor feedback with the AGC control model, we can control the thickness-deviation at the
output. Simulation results show that the AGC system with the MRA Smith-predictor feedback exhibits an excellent performance in controlling the thickness deviation of rolled aluminum strips. The limitation on the time-delay which originally affects the control performance is now eliminated, the thickness-variation at the output is removed, and the response rate is
raised. In summary，the product specifications of aluminum strips are satisfied. |
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