浅谈PID在冷轧生产线双主动轧机微张力控制中的应用  

Application of PID in Micro Tension Control of Double Active Rolling Mill in Cold Rolling Production Line

作　　者：陈伟 王刚领 CHEN Wei;WANG Gangling(Anyang Fosun Heli New Materials Co.,Ltd.)

机构地区：[1]安阳复星合力新材料股份有限公司

出　　处：《南钢科技与管理》2020年第2期19-22,共4页NISCO Technology and Management

摘　　要：螺纹钢是中型以上建筑构件必须用到的钢材,我国每年都有一定批量进口,特别是高强钢筋。CRB600H高延性冷轧螺纹钢筋作为高强钢筋的一种,是我公司自主创新的成果,其中较大规格产品的生产其生产线轧制区采用双主动轧机,即两台电机分别驱动轧机运行。双主动轧机生产线控制上最大难点是两台轧机间的微张力控制,PID在微张力控制中的应用很好的解决这一难题。本文阐述了采用西门子S7-1500系列PLC内置PID控制器实现微张力控制的方法,以及相关参数的调试过程,并给出了经验值。Rebar is essential in medium-sized and above building components.China imports a certain amount of rebar every year,especially high-strength rebar.The CRB600H high ductility and high strength cold-rolled rebar is developed by our company independently.The rolling area of the production line of big-sized products adopts double active rolling mill,that is,two motors drive the rolling mill separately.The most difficult point in the control of double active rolling mill production line is the micro tension control between two rolling mills.The application of PID in the micro tension control effectively solved this problem.This paper describes the method of achieving micro tension control with Siemens S7-1500 PLC built-in PID controller,as well as the commissioning process of relevant parameters and empirical values.

关 键 词：PLC PID 比例 积分 微分 轧制速度系数 

分 类 号：TG334.9[金属学及工艺—金属压力加工] TP273[自动化与计算机技术—检测技术与自动化装置]