单调联调组合微张力控制在棒材轧线中的应用  

Application of monotonic and cascade combined adjustment on bar mill low tension control

作　　者：胡占民 房继昀 任海风 佟胜喆 

机构地区：[1]宝钢集团韶钢松山股份有限公司特棒厂,广东韶关512000 [2]北京新典恒益科技有限公司,北京100070

出　　处：《冶金自动化》2016年第3期41-45,共5页Metallurgical Industry Automation

摘　　要：为了使机架间的速度匹配关系达到最佳状态,某大棒厂轧线的微张力控制采用先单调后联调的控制方式,即先通过单调方式调节下游机架的速度,控制这两个机架间的张力,再以新确定的两个机架间的速度关系切换到联调方式控制轧线的速度,主要控制内容包括轧件跟踪控制、微张力时序控制、微张力采样控制、参数自适应的微张力PI调节器控制及轧机的速度自适应控制。该控制系统应用于现场后,微张力控制精度高、速度快、稳定性好。In order to make the matching relation of speed between stands reach the best status,cascade regulation after monotonic adjustment method are applied to obtain low tension control in a big size bar factory. It means that,after the tension of the secondary stand being regulated via speed adjustment using monotonic adjustment,the control scheme will be switched into cascade mode to control the rolling line speed based on the new ensured speed relationship between two stands. Main control contents include： material tracking,low tension sequence control low tension sampling and control,PI adaptor control of parameter self-adaption and mill speed self-adaptive control. After the new control system is applied,it shows high control precision,fast speed and good reliability.

关 键 词：微张力控制 单调 逆调 轧件跟踪 棒材轧线 

分 类 号：TG335.62[金属学及工艺—金属压力加工]