Performance comparison between PID and dead-time compensating controllers
(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)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/161999
- author
- Ingimundarson, Ari LU and Hägglund, Tore LU
- organization
- publishing date
- 2002
- 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
- 2016-04-01 12:13:47
- date last changed
- 2022-03-28 22:02:21
@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}}, keywords = {{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}}, doi = {{10.1016/S0959-1524(02)00017-3}}, volume = {{12}}, year = {{2002}}, }