Analysis and control of a nonlinear boiler-turbine unit

被引：150
|
作者：
Tan, W [1 ]
Marquez, HJ
Chen, TW
Liu, JZ
机构：
[1] N China Elect Power Univ, Dept Automat, Beijing 102206, Peoples R China
[2] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2V4, Canada
来源：
JOURNAL OF PROCESS CONTROL | 2005年 / 15卷 / 08期
关键词：
boiler-turbine unit; nonlinearity measure; gap metric; anti-windup bumpless transfer techniques; controller constraints;
D O I：
10.1016/j.jprocont.2005.03.007
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A distance measure is proposed via the gap metric in this paper, and the concept is applied to a boiler-turbine unit to analyze its dynamics. It is shown that the unit shows severe nonlinearity, but the nonlinearity can be avoided by careful choice of the operating range. A single linear controller can be designed to work in such an operating range. It is also shown that the controller constraint is another source of the nonlinearity, which can be compensated using anti-windup techniques. Simulation results are given to verify the conclusions. (C) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：883 / 891
页数：9
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