步进梁热处理炉鲁棒优化控制研究  

Research of Optimal Control of Robust in Walking Beam Reheating Furnace

作　　者：胡玲艳[1,2] 

机构地区：[1]大连海事大学信息科学技术学院,辽宁大连116026 [2]大连大学信息工程学院,辽宁大连116622

出　　处：《工业炉》2013年第5期9-11,23,共4页Industrial Furnace

基　　金：国家自然科学基金资助项目(60574018)

摘　　要：针对冶金领域广泛应用的大型步进梁热处理炉,采用基于热传导及离散化技术得到的状态空间模型,进行鲁棒稳定性分析及控制器设计。考虑系统运行过程中的非线性及不确定性,基于李雅普诺夫稳定性定理及LMI方法,给出了系统稳定的充分条件,并进行变增益控制器设计。对辨识得到的系统模型,借助Matlab的LMI工具箱进行仿真及验证,仿真结果表明所得定理能够保证系统具有鲁棒完整性。Aiming at the large walking beam reheating furnace widely used in metallurgy area, the state space model was built based on the heat transfer and discretization technology to carried out robust stabilization analysis and controller design. Considering the uncertain and nonlinear characteristics in the system operation process, the sufficient conditions of the system stability was got based on the Lyapunov stability theory and Linear Matrix Inequality （LMI） method. By the way, the robust controller with perturbation was designed. The system model obtained by identification was simulated and verificated with the help of Matlab LMI toolbox, and the results show that the theorem can guarantee the robust integrity of system.

关 键 词：步进梁热处理炉 模型辨识 鲁棒控制 LMI 

分 类 号：TG155.1[金属学及工艺—热处理] TP273[金属学及工艺—金属学]