Decoupler and PID controller design of TITO systems

被引:108
作者
Nordfeldt, Pontus [1 ]
Hagglund, Tore [1 ]
机构
[1] Lund Inst Technol, Dept Automat Control, S-22100 Lund, Sweden
关键词
TITO control; process control; PID control; multi-variable control; decoupling;
D O I
10.1016/j.jprocont.2006.06.002
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper treats controller design and tuning for systems with two input signals and two output signals in the process industry. Two design methods that can be combined to form a core in an algorithm for automatic design and tuning for the considered systems are presented. The proposed controller consists of a decoupler and a diagonal PID controller. The decoupler has the property that as little dynamics as possible is introduced in the decoupler. The PID design method is based on exhaustive search. The methods are combined and tested in an industrial environment in a paper mill. (C) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:923 / 936
页数:14
相关论文
共 15 条
[1]  
[Anonymous], CONTROL SYSTEM DESIG
[2]   Revisiting the Ziegler-Nichols step response method for PID control [J].
Åstrom, KJ ;
Hågglund, T .
JOURNAL OF PROCESS CONTROL, 2004, 14 (06) :635-650
[3]   Design of decoupled PI controllers for two-by-two systems [J].
Åström, KJ ;
Johansson, KH ;
Wang, QG .
IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, 2002, 149 (01) :74-81
[4]  
Astrom KJ, 2005, ADV PID CONTROL ISA
[5]  
Hagglund T., 2002, Asian Journal of Control, V4, P364, DOI 10.1111/j.1934-6093.2002.tb00076.x
[6]  
Lancaster P., 1969, THEORY MATRICES
[7]  
Maciejowski J., 1989, Multivariable Feedback Design Electronic Systems Engineering Series
[8]  
NORDFELDT P, 2005, LUTFD2TFRT3238SE DEP
[9]  
Skogestad S., 2001, J PROCES CONTROL
[10]   Auto-tuning of TITO decoupling controllers from step tests [J].
Wang, QG ;
Huang, B ;
Guo, X .
ISA TRANSACTIONS, 2000, 39 (04) :407-418