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Comparison of internal model control and linear quadratic optimal control for SISO systems

Scali, Claudio and Semino, Daniele and Morari, Manfred (1992) Comparison of internal model control and linear quadratic optimal control for SISO systems. Industrial & Engineering Chemistry Research, 31 (8). pp. 1920-1927. ISSN 0888-5885. doi:10.1021/ie00008a013. https://resolver.caltech.edu/CaltechAUTHORS:20180524-160947847

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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.


Item Type:Article
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https://dx.doi.org/10.1021/ie00008a013DOIArticle
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.
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Funding AgencyGrant Number
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Consiglio Nazionale delle Ricerche (CNR)UNSPECIFIED
Issue or Number:8
DOI:10.1021/ie00008a013
Record Number:CaltechAUTHORS:20180524-160947847
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180524-160947847
Official Citation:Comparison of internal model control and linear quadratic optimal control for SISO systems Claudio Scali, Daniele Semino, and Manfred Morari Industrial & Engineering Chemistry Research 1992 31 (8), 1920-1927 DOI: 10.1021/ie00008a013
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86606
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:25 May 2018 14:22
Last Modified:15 Nov 2021 20:40

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