摘要
目前国内外热镀锌机组均面临控制系统陈旧,控制精度难以满足日益增长的生产需求的具体问题。本文充分考虑到热镀锌机组的控制流程,结合本产线平整机的设备与工艺特点,提出了建立独立的平整控制系统与原有控制系统平行运行的设计思路,新平整控制系统基于梯度提升决策树回归模型为模型修正平整过程力学模型,增加了控制系统的适用性与可移植性,实现了更准确的轧制力及配套张力的设定,新模型的预测偏差值标准差仅为原二级模型的25.8%。此外,在生产过程中可自由切换原有过程控制模型与新过程控制模型,较好的满足了产线需求,本文的研究成果可为国内其余产线的过程控制系统升级提供参考与帮助。
At present,the hot-dip galvanizing lines all over the world are faced with the problems of obsolete control system,and the control accuracy is difficult to meet the growing production demand.Considering the control process of the hot-dip galvanizing temper mill,combined with the equipment and process characteristics of this production line,this paper puts forward the design idea of establishing an independent leveling control system to run in parallel with the original control system.The new leveling control system modifies the mechanical model of the leveling process based on the regression model of the gradient boost decision tree,which increases the applicability and portability of the control system.The standard deviation of the new model is only 25.8% of the original model.In addition,the original process control model and the new process control model can be freely switched in the production process,which can better meet the needs of the production line.The research results of this paper can provide reference and help for the upgrading of the process control system of other production lines in China.
作者
张军
谢谦
卢海峰
ZHANG Jun;XIE Qian;LU Hai-feng(Zhanjiang Iron&Steel Co.,Ltd.,Zhanjiang 524000,China;College of Metallurgical Engineering,Anhui University of Technology,Ma'anshan,243002,China;Baoshan Iron&Steel Co.,Ltd.,Shanghai 200941,China)
出处
《重型机械》
2022年第4期38-41,共4页
Heavy Machinery
关键词
冷轧热镀锌机组
平整机
平行控制
控制系统
cold rolling and hot-dip galvanizing line
temper mill
parallel control
control system
