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Performance comparison between PID and dead-time compensating controllers

Ingimundarson, Ari LU and Hägglund, Tore LU (2002) In Journal of Process Control 12(8). p.887-895
Abstract
This paper is intended to answer the question: “When is a simple dead-time compensator expected to perform better than a PID?”. The performance criterion used is the integrated absolute error (IAE). It is compared for PI and PID controllers and a simple dead-time compensator (DTC) when a step load disturbance is applied at the plant input. Both stable and integrating processes are considered. For a fair comparison the controllers should provide equal robustness in some sense. Here, as a measure of robustness, the maximum of the absolute value of the sensitivity function is used. Since this is not a sufficient measure of robustness when errors in the dead time are considered, performance of the DTC's is given also as a function of dead-time... (More)
This paper is intended to answer the question: “When is a simple dead-time compensator expected to perform better than a PID?”. The performance criterion used is the integrated absolute error (IAE). It is compared for PI and PID controllers and a simple dead-time compensator (DTC) when a step load disturbance is applied at the plant input. Both stable and integrating processes are considered. For a fair comparison the controllers should provide equal robustness in some sense. Here, as a measure of robustness, the maximum of the absolute value of the sensitivity function is used. Since this is not a sufficient measure of robustness when errors in the dead time are considered, performance of the DTC's is given also as a function of dead-time margin (DM) where appropriate. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
PID control, Dead-time compensators, Performance comparison
in
Journal of Process Control
volume
12
issue
8
pages
887 - 895
publisher
Elsevier
external identifiers
  • wos:000177284700005
  • scopus:0036778721
ISSN
1873-2771
DOI
10.1016/S0959-1524(02)00017-3
language
English
LU publication?
yes
id
4cba70c9-1664-425a-856c-5e872e65f69c (old id 161999)
date added to LUP
2007-06-21 15:55:21
date last changed
2017-01-01 04:57:27
@article{4cba70c9-1664-425a-856c-5e872e65f69c,
  abstract     = {This paper is intended to answer the question: “When is a simple dead-time compensator expected to perform better than a PID?”. The performance criterion used is the integrated absolute error (IAE). It is compared for PI and PID controllers and a simple dead-time compensator (DTC) when a step load disturbance is applied at the plant input. Both stable and integrating processes are considered. For a fair comparison the controllers should provide equal robustness in some sense. Here, as a measure of robustness, the maximum of the absolute value of the sensitivity function is used. Since this is not a sufficient measure of robustness when errors in the dead time are considered, performance of the DTC's is given also as a function of dead-time margin (DM) where appropriate.},
  author       = {Ingimundarson, Ari and Hägglund, Tore},
  issn         = {1873-2771},
  keyword      = {PID control,Dead-time compensators,Performance comparison},
  language     = {eng},
  number       = {8},
  pages        = {887--895},
  publisher    = {Elsevier},
  series       = {Journal of Process Control},
  title        = {Performance comparison between PID and dead-time compensating controllers},
  url          = {http://dx.doi.org/10.1016/S0959-1524(02)00017-3},
  volume       = {12},
  year         = {2002},
}