Modeling for Optimal PID Design
Author
Summary, in English
Even though PID controllers have been around for a long time, few industrial controllers use derivative action and the remaining PI controllers are often designed with formula-based tuning rules rather than through computer-based optimization. This paper will delve into some of the reasons behind these choices and show potential benefits of instead using software-based PID tuning. Three commonly used tuning rules are compared to software tuning with respect to performance and robustness over a large process batch. The study shows the importance of combining a fast, accurate modeling tool with the software design method and gives guidelines for future modeling tools with regards to desired process information. With moderate process knowledge it is possible to design controllers that are much closer to optimal than the three tuning rules, with significant performance improvements as a result.
Department/s
Publishing year
2014
Language
English
Full text
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Document type
Conference paper
Topic
- Control Engineering
Keywords
- PID control
- optimization
- computer software
- modeling
- process control
Conference name
19th IFAC World Congress, 2014
Conference date
2014-08-24 - 2014-08-29
Conference place
Cape Town, South Africa
Status
Inpress
Research group
- LCCC