Fundamental limitation on achievable decentralized performance
A commonly accepted fact is that the diagonal structure of the decentralized controller poses fundamental limitations on the achievable performance, but few quantitative results are available for measuring these limitations. This paper provides a lower bound on the achievable quality of disturbance...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2009
|
| Subjects: | |
| Online Access: | http://www.elsevier.com/wps/find/homepage.cws_home http://hdl.handle.net/10220/4500 https://hdl.handle.net/10356/91375 |
| _version_ | 1811694181065687040 |
|---|---|
| author | Kariwala, Vinay |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Kariwala, Vinay |
| author_sort | Kariwala, Vinay |
| collection | NTU |
| description | A commonly accepted fact is that the diagonal structure of the decentralized controller poses fundamental limitations on the achievable performance, but few quantitative results are available for measuring these limitations. This paper provides a lower bound on the achievable quality of disturbance rejection using a decentralized controller for stable discrete time linear systems with time delays, which do not contain any finite zeros on or outside the unit circle. The proposed result is useful for assessing when full multivariable controllers can provide significantly improved performance, as compared to decentralized controllers. The results are also extended to the case, where the individual subcontrollers are restricted to be PID controllers. |
| first_indexed | 2024-10-01T07:03:29Z |
| format | Journal Article |
| id | ntu-10356/91375 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:03:29Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | ntu-10356/913752023-12-29T06:51:33Z Fundamental limitation on achievable decentralized performance Kariwala, Vinay School of Chemical and Biomedical Engineering DRNTU::Engineering::Chemical engineering DRNTU::Engineering::Electrical and electronic engineering::Control and instrumentation::Control engineering A commonly accepted fact is that the diagonal structure of the decentralized controller poses fundamental limitations on the achievable performance, but few quantitative results are available for measuring these limitations. This paper provides a lower bound on the achievable quality of disturbance rejection using a decentralized controller for stable discrete time linear systems with time delays, which do not contain any finite zeros on or outside the unit circle. The proposed result is useful for assessing when full multivariable controllers can provide significantly improved performance, as compared to decentralized controllers. The results are also extended to the case, where the individual subcontrollers are restricted to be PID controllers. Accepted version 2009-02-16T09:07:12Z 2019-12-06T18:04:33Z 2009-02-16T09:07:12Z 2019-12-06T18:04:33Z 2007 2007 Vol. 43, no. 10 (Oct. 2007) Journal Article Kariwala, V. (2007). Fundamental limitation on achievable decentralized performance. Automatica, 43(10), 1849-1854. 0005-1098 http://www.elsevier.com/wps/find/homepage.cws_home http://hdl.handle.net/10220/4500 https://hdl.handle.net/10356/91375 10.1016/j.automatica.2007.03.004 en Automatica Automatica. Copyright © 2007 Elsevier Ltd All rights reserved. Website: http://www.sciencedirect.com/science/journal/00051098 13 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Chemical engineering DRNTU::Engineering::Electrical and electronic engineering::Control and instrumentation::Control engineering Kariwala, Vinay Fundamental limitation on achievable decentralized performance |
| title | Fundamental limitation on achievable decentralized performance |
| title_full | Fundamental limitation on achievable decentralized performance |
| title_fullStr | Fundamental limitation on achievable decentralized performance |
| title_full_unstemmed | Fundamental limitation on achievable decentralized performance |
| title_short | Fundamental limitation on achievable decentralized performance |
| title_sort | fundamental limitation on achievable decentralized performance |
| topic | DRNTU::Engineering::Chemical engineering DRNTU::Engineering::Electrical and electronic engineering::Control and instrumentation::Control engineering |
| url | http://www.elsevier.com/wps/find/homepage.cws_home http://hdl.handle.net/10220/4500 https://hdl.handle.net/10356/91375 |
| work_keys_str_mv | AT kariwalavinay fundamentallimitationonachievabledecentralizedperformance |