Optimized multivariable predictive control of an industrial distillation column considering hard and soft constraints

被引：22
作者：
Volk, U
Kniese, DW
Hahn, R
Haber, R [1 ]
Schmitz, U
机构：
[1] Univ Appl Sci Cologne, Inst Plant & Proc Engn, Lab Proc Control, D-50679 Cologne, Germany
[2] Shell Refinery, Dept Proc Control, D-50997 Cologne, Germany
来源：
CONTROL ENGINEERING PRACTICE | 2005年 / 13卷 / 07期
关键词：
industrial control; process control; predictive control; distillation columns; optimisation;
D O I：
10.1016/j.conengprac.2004.09.007
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
For a petrochemical distillation column, which separates chemical petrol, a multivariable predictive controller has been developed, simulated and implemented. Feed-forward disturbance control was designed for the compensation of the feed flow fluctuations. The weighting coefficients of the cost function were optimised interactively during simulations. With predictive control not only the operation of the column but also the behaviour of the coupled furnace heating the columns became smoother. Simultaneously, the pressure was minimised which resulted in reduced duty (heating power) consumption. (c) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：913 / 927
页数：15
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