摘要
针对热轧带钢层流冷却终冷温度范围的扩大以及控制精度提高的要求,通过分析影响层流冷却过程的关键性因素如,速度、厚度、喷水量对终轧温度的影响,以及各因素之间相互的作用关系,合理制定出层流冷却的初始值,并建立起层流冷却温度控制的数学模型。运用前馈控制、速度补偿控制的思想以及针对层流冷却特点的线性叠加控制对层流冷却过程进行实时控制。所提出的方法成功运用于某层流冷却生产模型中,实现了终冷温度范围扩大以及控制精度提高的目标。
In order to expand the range of final cooling temperature and improve the control precision of the hot rolling strip laminar cooling, how the key factors of the laminar cooling affect on the roiling temperature is analyzed in this paper, including laminar cooling process velocity, thickness and water spray quantity. The default values of production line before the start of the laminar cooling are reasonable set, and a mathematical model of laminar cooling and temperature control is developed. According to the characteristics of the laminar cooling process feed forward control, linear superposition con- trol for laminar cooling control is used to achieve real-time control with feed forward control and speed compensation control strategy. The proposed method is used successfully in a laminar flow cooling production model, and the require- ments of the temperature range expansion and improvement of the control precision are met.
出处
《计算机工程与应用》
CSCD
北大核心
2015年第23期236-238,257,共4页
Computer Engineering and Applications
关键词
层流冷却
线性叠加
数学模型
控制方法
laminar cooling
linear superposition control
mathematical model
control strategy
