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Robust Control of Ill-Conditioned Plants: High-Purity Distillation

Author(s):

S. Skogestad, M. Morari, J.C. Doyle
Conference/Journal:

IEEE Transactions on Automatic Control, vol. 33, no. 12, This paper won the George S. Axelby Outstanding Paper Award, IEEE Transactions on Auto-matic Control in 1990.
Abstract:

Ill-eonditioned plants are generally believed to be difficult to control. Using a high-punty distillation column as an example, the physical reason for the poor conditioning and its implications on control system design and performance are explained. It is shown that an acceptable performancehobustness trade-off cannot be obtained by simple loop-shaping techniques (via singular values) and that a good understanding of the model uncertainty is essential for robust control system design. Physically motivated uncertainty descriptions (actuator uncertainty) are translated into the HJstructured singular value framework, which is demonstrated to be a powerful tool to analyze and understand the complex phenomena.

Year:

1988
Type of Publication:

(01)Article
Supervisor:



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% Autogenerated BibTeX entry
@Article { SkoMor:1988:IFA_5009,
    author={S. Skogestad and M. Morari and J.C. Doyle},
    title={{Robust Control of Ill-Conditioned Plants: High-Purity
	  Distillation}},
    journal={IEEE Transactions on Automatic Control},
    year={1988},
    volume={33},
    number={12},
    pages={},
    month=dec,
    url={http://control.ee.ethz.ch/index.cgi?page=publications;action=details;id=5009}
}
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