Design of decoupled PI controller for two-by-two systems
(2002) In IEE Proceedings: Control Theory and Applications 149(1). p.74-81- Abstract
- The design of PI controllers for systems with interacting loops is discussed. It is advantageous to deal with the interaction at the loop level, because supervisory control seldom has sufficient bandwidth. A new scheme based on modified scalar PI design and static decoupling is developed, in which the frequency characteristic of the coupling between the lower-level loops is taken into account. This leads to a design method emphasising the trade-off between the individual loop performances and the interaction indices introduced in the paper. The controller is easily implemented, due to its simple configuration based on standard components. A useful observation is that the interaction can be reduced substantially by using set-point... (More)
- The design of PI controllers for systems with interacting loops is discussed. It is advantageous to deal with the interaction at the loop level, because supervisory control seldom has sufficient bandwidth. A new scheme based on modified scalar PI design and static decoupling is developed, in which the frequency characteristic of the coupling between the lower-level loops is taken into account. This leads to a design method emphasising the trade-off between the individual loop performances and the interaction indices introduced in the paper. The controller is easily implemented, due to its simple configuration based on standard components. A useful observation is that the interaction can be reduced substantially by using set-point weighting. The method is applied to three examples, including a model of a new laboratory system called the quadruple-tank process (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/162042
- author
- Åström, Karl Johan LU ; Johansson, Karl Henrik LU and Wang, Q.G.
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- in
- IEE Proceedings: Control Theory and Applications
- volume
- 149
- issue
- 1
- pages
- 74 - 81
- publisher
- Institution of Engineering and Technology
- external identifiers
-
- wos:000174940400012
- scopus:0036230601
- ISSN
- 1350-2379
- DOI
- 10.1049/ip-cta:20020087
- language
- English
- LU publication?
- yes
- id
- 83173adf-f81d-4781-92ff-f7f331e67577 (old id 162042)
- alternative location
- http://ieeexplore.ieee.org/xpls/abs_all.jsp?isnumber=21432&arnumber=993584&count=17&index=11
- date added to LUP
- 2016-04-01 12:10:44
- date last changed
- 2022-02-18 19:00:43
@article{83173adf-f81d-4781-92ff-f7f331e67577,
abstract = {{The design of PI controllers for systems with interacting loops is discussed. It is advantageous to deal with the interaction at the loop level, because supervisory control seldom has sufficient bandwidth. A new scheme based on modified scalar PI design and static decoupling is developed, in which the frequency characteristic of the coupling between the lower-level loops is taken into account. This leads to a design method emphasising the trade-off between the individual loop performances and the interaction indices introduced in the paper. The controller is easily implemented, due to its simple configuration based on standard components. A useful observation is that the interaction can be reduced substantially by using set-point weighting. The method is applied to three examples, including a model of a new laboratory system called the quadruple-tank process}},
author = {{Åström, Karl Johan and Johansson, Karl Henrik and Wang, Q.G.}},
issn = {{1350-2379}},
language = {{eng}},
number = {{1}},
pages = {{74--81}},
publisher = {{Institution of Engineering and Technology}},
series = {{IEE Proceedings: Control Theory and Applications}},
title = {{Design of decoupled PI controller for two-by-two systems}},
url = {{http://dx.doi.org/10.1049/ip-cta:20020087}},
doi = {{10.1049/ip-cta:20020087}},
volume = {{149}},
year = {{2002}},
}