东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2009, Vol. 30 ›› Issue (2): 169-171.DOI: -

• 论著 • 上一篇    下一篇

热连轧前馈厚度控制系统的研究与应用

钟云峰;谭树彬;徐心和;   

  1. 东北大学流程工业综合自动化教育部重点实验室;东北大学信息科学与工程学院;
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2009-02-15 发布日期:2013-06-22
  • 通讯作者: Zhong, Y.-F.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(60774097);;

Research and application of the feedforward-AGC system in hot strip rolling mills

Zhong, Yun-Feng (1); Tan, Shu-Bin (1); Xu, Xin-He (2)   

  1. (1) Key Laboratory of Integrated Automation of Process Industry, Northeastern University, Shenyang 110004, China; (2) School of Information Science and Engineering, Northeastern University, Shenyang 110004, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2009-02-15 Published:2013-06-22
  • Contact: Zhong, Y.-F.
  • About author:-
  • Supported by:
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摘要： 某热连轧机原本使用的厚度自动控制(AGC)模型,不论是轧制力AGC还是监控AGC都属于反馈式控制系统,因此轧机辊缝调节都有不同程度的时间滞后,从而也限制了厚度控制精度的进一步提高.采用冷连轧机前馈控制的基本思想,用前机架的出口带钢计算厚度作为前馈控制的检测厚度,并经过跟踪移位处理,设计出了前馈AGC控制模型,针对带钢厚度波动及时调节本机架的轧制辊缝,实现提前预控的目的.实验结果表明,前馈AGC控制模型投入使用之后,带钢厚度精度得到明显提高.

关键词: 前馈AGC, 热轧机, 厚度自动控制, 反馈滞后

Abstract: Either RF-AGC or Mon-AGC of AGC (automatic gauge control) model to the 1580 hot strip rolling mill belongs to a feedback control system. Time lag is therefore inevitable to the readjustment of rolling gap, thus resulting in the constraint on improving the strip gauge precision. The normal feedforward idea about tandem cold mills was introduced into hot strip rolling to develop a feedforward AGC model via the calculated strip thickness from the exit preceded stand, which was taken as the inspected gauge in feedforward control and processed by tracking shift. In this way the rolling gap can be readjusted in time according to gauge fluctuation so as to attain the goal of precontrol. As a result, the thickness gauge precision of rolling strip is improved obviously.

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