精轧活套控制系统研究  

Investigation into looper control system for finishing mill

作　　者：邹俊[1] 傅新[1] 杨华勇[1] 

机构地区：[1]浙江大学流体传动及控制国家重点实验室,浙江杭州310027

出　　处：《浙江大学学报（工学版）》2007年第12期2052-2057,共6页Journal of Zhejiang University：Engineering Science

基　　金：国家"973"重点基础研究发展规划资助项目(2006CB705405);国家自然科学基金资助项目(50705082)

摘　　要：在活套系统中,由于活套高度(套量)和带钢张力是相互耦合的,这种交叉关系严重影响了被控量的调节,采用自抗扰控制器取代张力调节环节中的PI控制器,与传统的PID控制器相比,采用积分变形避免了微分灾,将传统的控制工程经验通过误差的非线性组合方式引入系统,通过误差估计抑制系统外扰.将活套高度对张力的作用作为系统外扰,通过扩张观测器的实时估计,有效的抑制了活套高度波动对张力的影响,获得更加良好的张力控制性能.In a looper system, the interaction of tension and looper angle badly influences the tension control. The active disturbance rejection controller, instead of PI controller, was applied in the looper control system. Compared with the traditional PID control theory, the method gets over the differential obsession by integral transformation, combines the control engineering experience by nonlinear combination of error, and reduces disturbances by error estimation. The results showed that the active disturbance rejection control method which observing disturbance of tension deriving from fluctuation of looper angle achieved better performance than the classic one.

关 键 词：活套系统 自抗扰控制 张力控制 热轧 

分 类 号：TH137[机械工程—机械制造及自动化]