Abstract
A test is developed for the proper selection and pairing of manipulated and controlled variables. The criteria by which a set of variables is deemed adequate for control purposes are (1) robustness to model uncertainty, (2) stability despite decentralized control, and (3) constraints (on manipulated and associated variables) satisfied at steady state. The basis for this test is the structured singular value, which provides a generalized framework for simultaneously addressing the performance and robustness aspects of control systems. This test, which is independent of a specific controller design methodology, is a definitive test; alternatives can be evaluated precisely on whether they satisfy requirements, without requiring the user to specify a scaling or some arbitrary cutoff point for acceptable configurations. The effectiveness of the test is illustrated with a case study involving the control of a heavy oil fractionator, which forms part of the Shell standard control problem.
Original language | English (US) |
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Title of host publication | Proc 1989 Am Control Conf |
Editors | Anon |
Place of Publication | Piscataway, NJ, United States |
Publisher | Publ by IEEE |
Pages | 560-565 |
Number of pages | 6 |
State | Published - 1989 |
Externally published | Yes |
Event | Proceedings of the 1989 American Control Conference - Pittsburgh, PA, USA Duration: Jun 21 1989 → Jun 23 1989 |
Other
Other | Proceedings of the 1989 American Control Conference |
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City | Pittsburgh, PA, USA |
Period | 6/21/89 → 6/23/89 |
ASJC Scopus subject areas
- General Engineering