Looper-Tension Sliding Mode Control for Hot Strip Finishing Mills  

作　　者：ZHONG Zhao-zhun WANG Jing-cheng ZHANG Jian-min LI Jia-bo 

机构地区：[1]Department of Automation, Key Laboratory of System Control and Information Processing of Ministry of Education, Shanghai Jiaotong University, Shanghai 200240, China [2]Baosteel Research Institute, Baoshan Iron and Steel Co Ltd, Shanghai 201900, China

出　　处：《Journal of Iron and Steel Research International》2012年第1期23-30,共8页

基　　金：Sponsored by National Natural Science Foundation of China(60934007,61174059);Program for New Century Excellent Talents of China(NCET-08-0359);Shanghai Rising-Star Tracking Program of China(11QH1401300)

摘　　要：An innovative sliding mode controller for looper and tension control in hot strip finishing mills was developed based on approximately linearized model. Firstly, a fictitious controller of the reduced order subsystem was designed according to desired dynamics, by which, the angle and tension loops were decoupled on the sliding manifold. Then, a sliding mode controller was used to validate finite time convergence of the state vector to the manifold which guaranteed the stability and performances of the overall system. This solution was considered owing to its well- known robustness and simplicity characteristics concerning disturbances and unmodelled dynamics. Simulation results showed the effectiveness of the proposed controller compared with conventional ones.An innovative sliding mode controller for looper and tension control in hot strip finishing mills was developed based on approximately linearized model. Firstly, a fictitious controller of the reduced order subsystem was designed according to desired dynamics, by which, the angle and tension loops were decoupled on the sliding manifold. Then, a sliding mode controller was used to validate finite time convergence of the state vector to the manifold which guaranteed the stability and performances of the overall system. This solution was considered owing to its well- known robustness and simplicity characteristics concerning disturbances and unmodelled dynamics. Simulation results showed the effectiveness of the proposed controller compared with conventional ones.

关 键 词：sliding mode control looper control tension control hot strip finishing mill 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TG333.24[自动化与计算机技术—控制科学与工程]