Stabilization and analytical tuning rule of double-loop control scheme for unstable dead-time process
© Published under licence by IOP Publishing Ltd. The presence of unstable dead-time systems in process plants often leads to a daunting challenge in the design of standard PID controllers, which are not only intended to provide close-loop stability but also to give good performance-robustness overal...
| Main Authors: | , , |
|---|---|
| Format: | Conference Paper |
| Published: |
2017
|
| Online Access: | http://hdl.handle.net/20.500.11937/72297 |
| _version_ | 1848762712553684992 |
|---|---|
| author | Ugon, Bejay Nandong, Jobrun Zang, Zhuquan |
| author_facet | Ugon, Bejay Nandong, Jobrun Zang, Zhuquan |
| author_sort | Ugon, Bejay |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © Published under licence by IOP Publishing Ltd. The presence of unstable dead-time systems in process plants often leads to a daunting challenge in the design of standard PID controllers, which are not only intended to provide close-loop stability but also to give good performance-robustness overall. In this paper, we conduct stability analysis on a double-loop control scheme based on the Routh-Hurwitz stability criteria. We propose to use this unstable double-loop control scheme which employs two P/PID controllers to control first-order or second-order unstable dead-time processes typically found in process industries. Based on the Routh-Hurwitz stability necessary and sufficient criteria, we establish several stability regions which enclose within them the P/PID parameter values that guarantee close-loop stability of the double-loop control scheme. A systematic tuning rule is developed for the purpose of obtaining the optimal P/PID parameter values within the established regions. The effectiveness of the proposed tuning rule is demonstrated using several numerical examples and the result are compared with some well-established tuning methods reported in the literature. |
| first_indexed | 2025-11-14T10:51:56Z |
| format | Conference Paper |
| id | curtin-20.500.11937-72297 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:51:56Z |
| publishDate | 2017 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-722972018-12-13T09:34:10Z Stabilization and analytical tuning rule of double-loop control scheme for unstable dead-time process Ugon, Bejay Nandong, Jobrun Zang, Zhuquan © Published under licence by IOP Publishing Ltd. The presence of unstable dead-time systems in process plants often leads to a daunting challenge in the design of standard PID controllers, which are not only intended to provide close-loop stability but also to give good performance-robustness overall. In this paper, we conduct stability analysis on a double-loop control scheme based on the Routh-Hurwitz stability criteria. We propose to use this unstable double-loop control scheme which employs two P/PID controllers to control first-order or second-order unstable dead-time processes typically found in process industries. Based on the Routh-Hurwitz stability necessary and sufficient criteria, we establish several stability regions which enclose within them the P/PID parameter values that guarantee close-loop stability of the double-loop control scheme. A systematic tuning rule is developed for the purpose of obtaining the optimal P/PID parameter values within the established regions. The effectiveness of the proposed tuning rule is demonstrated using several numerical examples and the result are compared with some well-established tuning methods reported in the literature. 2017 Conference Paper http://hdl.handle.net/20.500.11937/72297 10.1088/1757-899X/206/1/012060 restricted |
| spellingShingle | Ugon, Bejay Nandong, Jobrun Zang, Zhuquan Stabilization and analytical tuning rule of double-loop control scheme for unstable dead-time process |
| title | Stabilization and analytical tuning rule of double-loop control scheme for unstable dead-time process |
| title_full | Stabilization and analytical tuning rule of double-loop control scheme for unstable dead-time process |
| title_fullStr | Stabilization and analytical tuning rule of double-loop control scheme for unstable dead-time process |
| title_full_unstemmed | Stabilization and analytical tuning rule of double-loop control scheme for unstable dead-time process |
| title_short | Stabilization and analytical tuning rule of double-loop control scheme for unstable dead-time process |
| title_sort | stabilization and analytical tuning rule of double-loop control scheme for unstable dead-time process |
| url | http://hdl.handle.net/20.500.11937/72297 |