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Performance Assessment for Unstable and Nonminimum-Phase Systems

Author(s):

M. Tyler, M. Morari
Conference/Journal:

vol. AUT95-03
Abstract:

This article derives extensions of minimum variance control evaluation techniques to general systems, including unstable and nonminimum-phase plants and systems with unstable controllers. An analysis of the sensitivity of these methods to uncertainties in the location of unstable poles and non-invertible zeros is presented. An on-line implementation scheme which first divides data into segments with similar dynamical properties and then analyzes the individual segments is outlined. Through two simple examples, it is shown that grave errors may be encountered when information on the unstable poles and non-invertible zeros of a system is not properly included in the performance evaluation techniques.

Year:

1995
Type of Publication:

(04)Technical Report
Supervisor:



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% Autogenerated BibTeX entry
@TechReport { TylMor:1995:IFA_437,
    author={M. Tyler and M. Morari},
    title={{Performance Assessment for Unstable and Nonminimum-Phase
	  Systems}},
    institution={},
    year={1995},
    number={},
    address={},
    url={http://control.ee.ethz.ch/index.cgi?page=publications;action=details;id=437}
}
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