热连轧板形板厚多变量系统鲁棒控制  

Robust control for a combined shape and gauge multivariable system in hot strip rolling

作　　者：景鹏[1] 童朝南[1] 李江昀[1] 肖磊[1] 

机构地区：[1]北京科技大学信息工程学院,北京100083

出　　处：《北京科技大学学报》2009年第10期1334-1341,共8页Journal of University of Science and Technology Beijing

基　　金：北京市教委重点学科共建资助项目(No.XK100080537)

摘　　要：针对板形板厚多变量复杂系统,以板形和板厚质量为主要控制目标,以弯辊力和辊缝为主要控制变量建立系统模型.基于某热连轧实际生产参数得到具体数学模型.针对建模过程中忽略掉的各种次要因素的影响及扰动和参数摄动,应用Matlab鲁棒控制工具箱对系统进行耦合分析并求解出鲁棒控制器,通过均衡处理的控制器降阶算法得到低阶鲁棒控制器.仿真结果验证所设计控制器具有良好的解耦效果、抗干扰能力和抗参数摄动能力.A multivariable system model was constructed with strip flatness and thickness as the control obieetives and with bend- ing force and gauge as the main control variables for a combined shape and gauge system, and its mathematical expression was presented on the base of some industrial data in hot strip rolling process. Taking various kinds of secondary factors, perturbation and disturbance into consideration, a full order robust controller was given with the robust control toolbox in Matlab, and then a low-order controller was developed through balancing approximation in closed-loop design. Simulation results show the good performance of decoupling, anti-disturbance and anti-parameter-perturbation.

关 键 词：带钢轧制 鲁棒控制 控制器降阶 解耦控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TG335.11[自动化与计算机技术—控制科学与工程]