新钢1550 mm连续退火炉温度控制系统改进及应用  

Temperature control system improvement and application for heating section of 1550 mm continuous annealing furnace in Xinsteel

作　　者：胡韬 胡剑斌 熊斌 HU Tao;HU Jian-bin;XIONG-bin(Technology Center Xinvu Iron ＆ Steel Co.,Ltd.,Xinyu 338001,China;Cold Rolling Mill Plant,Xinyu Iron ＆ Steel Co.,Ltd.,Xinyu 338001,China)

机构地区：[1]新余钢铁股份有限公司技术中心,江西新余338001 [2]新余钢铁股份有限公司冷轧厂,江西新余338001

出　　处：《冶金自动化》2018年第5期38-41,共4页Metallurgical Industry Automation

摘　　要：由于引进的常规PID连续退火炉温度控制系统在外界发生扰动时振荡和调节时间过长,精度不理想,因此新钢冷轧厂在2017年对该温度控制系统进行了改进,引入史密斯预估器用于解决滞后和超调量大的问题。实践证明,加入史密斯预估器的温度控制系统能降低扰动时被控对象的超调和滞后,提高了规格过渡时带钢温度的控制精度,降低了连退炉的能耗。The adjustment period of the imported routine PID temperature control system was very long when the outside condition is disturbed,which led to an unsatisfied precision. Therefore,in2017,the temperature control system was improved in Xinsteel,and the Smith predictor was introduced to solve the problem of lag and big overshoot. Practice has proved that the temperature control system with Smith predictor can reduce the overshoot and lag of the controlled object during disturbance,improve the control accuracy of the strip temperature during the specification transition,and reduce the energy consumption of the continuous annealing furnace.

关 键 词：闭环控制 温度控制 史密斯预估器 连续退火炉 

分 类 号：TG155.1[金属学及工艺—热处理] TP273[金属学及工艺—金属学]