Half order plus time delay (HOPTD) models to tune PI controllers
- Authors
- Lee, Jietae; Lee, Yongjeh; Yang, Dae Ryook; Edgar, Thomas F.
- Issue Date
- 2월-2017
- Publisher
- WILEY
- Keywords
- half-order plus time delay model; first-order plus time delay model; proportional integral control; tuning; step response
- Citation
- AICHE JOURNAL, v.63, no.2, pp.601 - 609
- Indexed
- SCIE
SCOPUS
- Journal Title
- AICHE JOURNAL
- Volume
- 63
- Number
- 2
- Start Page
- 601
- End Page
- 609
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/84800
- DOI
- 10.1002/aic.15394
- ISSN
- 0001-1541
- Abstract
- Methods based on the first-order plus time delay (FOPTD) model are very popular for tuning proportional-integral (PI) controllers. The FOPTD model-based methods are simple and their utility has been proved with many successful applications to a wide range of processes in practice. However, even for some overdamped processes where the FOPTD model seems to be applied successfully, these empirical FOPTD model-based methods can fail to provide stable tuning results. To remove these drawbacks, a PI controller tuning method based on half-order plus time delay (HOPTD) model is proposed. Because FOPTD model-based methods can be applied to higher order processes, the proposed HOPTD model-based method can be applied to higher order processes as well. It does not require any additional process information compared to the FOPTD model-based method and hence can be used for overdamped processes in practice, complementing the traditional FOPTD model-based methods. (c) 2016 American Institute of Chemical Engineers AIChE J, 63: 601-609, 2017
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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