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Asymmetric relay autotuning - Practical features for industrial use

Berner, Josefin LU ; Hägglund, Tore LU and Åström, Karl Johan LU (2016) In Control Engineering Practice 54. p.231-245
Abstract
The relay autotuner provides a simple way of finding PID controller parameters. Even though relay autotuning is much investigated in the literature, the practical aspects are not that well-documented. In this paper an asymmetric relay autotuner with features such as a startup procedure and adaptive relay amplitudes is proposed. Parameter choices and handling of noise, disturbances, start in non-steady state and other possible error sources are discussed. The autotuner is implemented and tested in an industrial air handling unit to show its use in practice. The experiments show good results, and prove that the proposed simple autotuner is well-suited for industrial use. But the experiments also enlighten possible error sources and... (More)
The relay autotuner provides a simple way of finding PID controller parameters. Even though relay autotuning is much investigated in the literature, the practical aspects are not that well-documented. In this paper an asymmetric relay autotuner with features such as a startup procedure and adaptive relay amplitudes is proposed. Parameter choices and handling of noise, disturbances, start in non-steady state and other possible error sources are discussed. The autotuner is implemented and tested in an industrial air handling unit to show its use in practice. The experiments show good results, and prove that the proposed simple autotuner is well-suited for industrial use. But the experiments also enlighten possible error sources and remaining problems. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Asymmetric relay autotuning, PID control, Practical features, Industrial experiment, Air handling unit
in
Control Engineering Practice
volume
54
pages
15 pages
publisher
Elsevier
external identifiers
  • scopus:84976343085
  • wos:000380596200021
ISSN
0967-0661
DOI
10.1016/j.conengprac.2016.05.017
language
English
LU publication?
yes
id
fe72079b-a398-465d-8c5e-156866a84865
alternative location
http://authors.elsevier.com/a/1THcE3RugWLY5s
date added to LUP
2016-06-29 09:54:51
date last changed
2017-01-18 11:09:06
@article{fe72079b-a398-465d-8c5e-156866a84865,
  abstract     = {The relay autotuner provides a simple way of finding PID controller parameters. Even though relay autotuning is much investigated in the literature, the practical aspects are not that well-documented. In this paper an asymmetric relay autotuner with features such as a startup procedure and adaptive relay amplitudes is proposed. Parameter choices and handling of noise, disturbances, start in non-steady state and other possible error sources are discussed. The autotuner is implemented and tested in an industrial air handling unit to show its use in practice. The experiments show good results, and prove that the proposed simple autotuner is well-suited for industrial use. But the experiments also  enlighten possible error sources and remaining problems.},
  author       = {Berner, Josefin and Hägglund, Tore and Åström, Karl Johan},
  issn         = {0967-0661},
  keyword      = {Asymmetric relay autotuning, PID control, Practical features, Industrial experiment, Air handling unit},
  language     = {eng},
  pages        = {231--245},
  publisher    = {Elsevier},
  series       = {Control Engineering Practice},
  title        = {Asymmetric relay autotuning - Practical features for industrial use},
  url          = {http://dx.doi.org/10.1016/j.conengprac.2016.05.017},
  volume       = {54},
  year         = {2016},
}