Self-Optimizing Control in Chemical Recycle Processes

被引：7

作者：

Straus, Julian ^{[1
]}

Skogestad, Sigurd ^{[1
]}

机构：

[1] Norwegian Univ Sci & Technol, N-7491 Trondheim, Norway

来源：

IFAC PAPERSONLINE | 2018年 / 51卷 / 18期

关键词：

Self-optimizing control; Integrated systems; Feedback through recycles; Control of ammonia reactors; CONTROLLED VARIABLES; OPTIMAL SELECTION; SEARCH;

D O I：

10.1016/j.ifacol.2018.09.369

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

An engineer always has to make assumptions about the system boundary. In this paper, the impact of neglected dependencies of manipulated variables on the disturbance variables as example for said assumptions is investigated in the context of self-optimizing control. The feedback through dependent disturbances influences both the optimal operating point and the combination of measurements. As a case study, we consider an ammonia synthesis reactor with a simplified model for the ammonia separation and the recycle. The disturbance dependency changes the optimal selection matrices through the recycle. However, we find that it is possible to neglect the recycle in the selection of the controlled variables for this example if the setpoint is adjusted. (C) 2018, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.

引用

页码：536 / 541

页数：6

共 15 条

[1] Optimal measurement combinations as controlled variables [J].