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Incorporating robustness requirements into antiwindup design

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posted on 2007-11-19, 15:36 authored by Matthew C. Turner, Guido Herrmann, Ian Postlethwaite
This paper treats the problem of synthesizing antiwindup compensators that are able to handle plant uncertainty in addition to controller saturation. The uncertainty considered is of the frequency-weighted additive type, often encountered in linear robust control theory, and representative of a wide variety of uncertainty encountered in practice. The main results show how existing linear matrix inequality based antiwindup synthesis algorithms can be modified to produce compensators that accommodate uncertainty better. Embedded within these results is the ever-present performance - robustness tradeoff. A remarkable feature is that the often criticized internal model control antiwindup solution emerges as an ldquooptimally robustrdquo solution. A simple example demonstrates the effectiveness of the modified algorithms.

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Citation

IEEE Transactions on Automatic Control, 2007, 52 (10), pp.1842-1855

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  • VoR (Version of Record)

Published in

IEEE Transactions on Automatic Control

issn

0018-9286

Copyright date

2007

Available date

2007-11-19

Publisher version

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4349212

Notes

This paper was published as IEEE Transactions on Automatic Control, 2007, 52 (10), pp.1842-1855. It is also available fromhttp://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4349212. Doi: 10.1109/TAC.2007.906185

Language

en

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