DocumentCode
2206898
Title
On the computation of the robust stability margin for ellipsoidal parametric uncertainties
Author
Mahon, H. Michael ; Crisalle, Oscar D.
Author_Institution
Dept. of Chem. Eng., Florida Univ., Gainesville, FL, USA
Volume
3
fYear
1998
fDate
21-26 Jun 1998
Firstpage
1439
Abstract
A systematic method for determining the Nyquist robust stability margin for a polynomial subject to ellipsoidal parametric uncertainty is presented. The margin is calculated as the infinity norm of a stable, minimum-phase transfer function whose frequency response magnitude characterizes the robust stability of the system. The appropriate transfer function is constructed directly from elements of the nominal polynomial and the matrix describing the uncertainty ellipsoid
Keywords
Nyquist stability; frequency response; matrix algebra; parameter estimation; polynomials; robust control; transfer functions; uncertain systems; Nyquist robust stability margin; ellipsoidal parametric uncertainties; frequency response magnitude; infinity norm; nominal polynomial; stable minimum-phase transfer function; Chemical engineering; Ellipsoids; Frequency response; H infinity control; Parameter estimation; Polynomials; Robust stability; Robustness; Transfer functions; Uncertainty;
fLanguage
English
Publisher
ieee
Conference_Titel
American Control Conference, 1998. Proceedings of the 1998
Conference_Location
Philadelphia, PA
ISSN
0743-1619
Print_ISBN
0-7803-4530-4
Type
conf
DOI
10.1109/ACC.1998.707063
Filename
707063
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