Published August 1992
| public
Journal Article
Comparison of internal model control and linear quadratic optimal control for SISO systems
- Creators
- Scali, Claudio
- Semino, Daniele
- Morari, Manfred
Chicago
Abstract
In this paper internal model control (IMC) is formulated for general inputs and compared with linear quadratic (H_2) optimal control (LQOC) with a general (dynamic) input penalty weight. Analogies and differences between the two methods for robustness study are clearly pointed out. Both controllers can be expressed in terms of the same nominal controller and a robustness filter. The main difference is that the LQOC filter depends also on process and disturbance parameters. As a consequence, performance may be different in general, even if in many cases quite similar results are obtained. The design for robustness is much more straightforward in IMC.
Additional Information
© 1992 American Chemical Society. Received for review March 24, 1992. Accepted May 1, 1992. Partial support from the National Science Foundation (U.S.A.) and the Consiglio Nazionale delle Ricerche (Italy) is gratefully acknowledged. This paper was originally submitted to Industrial & Engineering Chemistry Research on June 6, 1991.Additional details
- Eprint ID
- 86606
- Resolver ID
- CaltechAUTHORS:20180524-160947847
- NSF
- Consiglio Nazionale delle Ricerche (CNR)
- Created
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2018-05-25Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field