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Model optimization for autotuners in industrial control systems
- Lundh, Magnus (author)
- Theorin, Alfred (author)
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- Hägglund, Tore (author)
- Lund University,Lunds universitet,Institutionen för reglerteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Automatic Control,Departments at LTH,Faculty of Engineering, LTH
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- 2021
- 2021
- English.
- In: Proceedings of the 26th International Conference on Emerging Technologies and Factory Automation (ETFA). - 9781728129891 ; , s. 1-4
- Conference paper (peer-reviewed)
Abstract
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- Automatic tuning of PID controllers using relay feedback experiments has received attention on and off since it was first proposed and industrially implemented in a control system in the 1980s. While optimal experiment design and modern system identification easily outperform the original automatic tuner, they rely on computational resources that are not always available in industrial control systems. Here we present a combination of experiment and subsequent output-error identification of continuoustime first-order time-delayed (FOTD) system models, that requires very little in terms of computations and memory. The method has been extensively evaluated in simulation, and a prototype has been implemented for the ABB AC 800M controller family.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)
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- Lundh, Magnus
- Theorin, Alfred
- Hägglund, Tore
- Hansson, Jonas
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