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Relay Feedback Auto-tuning of Process Controllers – A Tutorial Review

Hang, C.C.; Åström, Karl Johan LU and Wang, Q. G. (2002) In Journal of Process Control 12(1). p.143-162
Abstract
The PID relay auto-tuner of Astrom–Hagglund is one of the simplest and most robust auto-tuning techniques for process controllers and has been successfully applied to industry for more than 15 years. This tuner is based on an approximate estimation of the critical point on the process frequency response from relay oscillations. Many developments have recently been reported to extend its applications. It turns out that more and accurate information on process dynamics can be obtained from the same relay test with the help of new identification techniques, and used to tune PID controllers better. Extensions are also made to tune model-based advanced controllers and multivariable controllers. The present paper reviews these developments and... (More)
The PID relay auto-tuner of Astrom–Hagglund is one of the simplest and most robust auto-tuning techniques for process controllers and has been successfully applied to industry for more than 15 years. This tuner is based on an approximate estimation of the critical point on the process frequency response from relay oscillations. Many developments have recently been reported to extend its applications. It turns out that more and accurate information on process dynamics can be obtained from the same relay test with the help of new identification techniques, and used to tune PID controllers better. Extensions are also made to tune model-based advanced controllers and multivariable controllers. The present paper reviews these developments and shows the state-of art in relay auto-tuning of process controllers. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Process Control
volume
12
issue
1
pages
143 - 162
publisher
Elsevier
external identifiers
  • wos:000172662600013
  • scopus:0036132049
ISSN
1873-2771
DOI
10.1016/S0959-1524(01)00025-7
language
English
LU publication?
yes
id
eea133d6-6105-4b42-bcf8-5f231f8232e0 (old id 161970)
date added to LUP
2007-06-21 15:14:37
date last changed
2017-12-10 03:56:00
@article{eea133d6-6105-4b42-bcf8-5f231f8232e0,
  abstract     = {The PID relay auto-tuner of Astrom–Hagglund is one of the simplest and most robust auto-tuning techniques for process controllers and has been successfully applied to industry for more than 15 years. This tuner is based on an approximate estimation of the critical point on the process frequency response from relay oscillations. Many developments have recently been reported to extend its applications. It turns out that more and accurate information on process dynamics can be obtained from the same relay test with the help of new identification techniques, and used to tune PID controllers better. Extensions are also made to tune model-based advanced controllers and multivariable controllers. The present paper reviews these developments and shows the state-of art in relay auto-tuning of process controllers.},
  author       = {Hang, C.C. and Åström, Karl Johan and Wang, Q. G.},
  issn         = {1873-2771},
  language     = {eng},
  number       = {1},
  pages        = {143--162},
  publisher    = {Elsevier},
  series       = {Journal of Process Control},
  title        = {Relay Feedback Auto-tuning of Process Controllers – A Tutorial Review},
  url          = {http://dx.doi.org/10.1016/S0959-1524(01)00025-7},
  volume       = {12},
  year         = {2002},
}