Nonlinear model predictive control of a continuous slab reheating furnace

被引：58
|
作者：
Steinboeck, A. [1 ]
Wild, D. [2 ]
Kugi, A. [1 ]
机构：
[1] Vienna Univ Technol, Automat & Control Inst, A-1040 Vienna, Austria
[2] Aktiengesell Dillinger Huttenwerke, D-66763 Dillingen, Germany
来源：
CONTROL ENGINEERING PRACTICE | 2013年 / 21卷 / 04期
关键词：
Nonlinear model predictive control; Continuous slab reheating furnace; Nonlinear switched MIMO system; Unconstrained optimization; Quasi-Newton method; SUBOPTIMALITY; STABILITY;
D O I：
10.1016/j.conengprac.2012.11.012
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A nonlinear model predictive controller is designed for a continuous reheating furnace for steel slabs. Based on a first-principles mathematical model, the controller defines local furnace temperatures so that the slabs reach their desired final temperatures. The controller is suitable for non-steady-state operating situations and reaching user-defined desired slab temperature profiles. In the control algorithm, a nonlinear unconstrained dynamic optimization problem is solved by the quasi-Newton method. The design of the controller exploits the fact that the considered slab reheating furnace is a continuous production process. Long-term measurement results from an industrial application of the controller demonstrate its reliability and accuracy. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：495 / 508
页数：14
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