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Coprime Factor Reduction of H-infinity Controllers

Varga, Andras (2003) Coprime Factor Reduction of H-infinity Controllers. European Control Conference, ECC'03, 2003-09-01 - 2003-09-04, Cambridge (UK).

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Abstract

We consider the efficient solution of the coprime factorization based H infinity controller approximation problems by using frequency-weighted balancing related model reduction approaches. It is shown that for a class of frequency-weighted performance preserving coprime factor reduction as well as for a relative error coprime factor reduction method, the computation of the frequency-weighted controllability and observability grammians can be done by solving Lyapunov equations of the order of the controller. The new approach can be used in conjunction with accuracy enhancing square-root and balancing-free techniques developed for the balancing related coprime factors based model reduction.

Document Type:Conference or Workshop Item (Paper)
Additional Information:LIDO-Berichtsjahr=2003,
Title:Coprime Factor Reduction of H-infinity Controllers
Authors:
AuthorsInstitution or Email of Authors
Varga, AndrasUNSPECIFIED
Date:May 2003
Status:Published
Keywords:Controller reduction, frequency-weighted model, reduction, balanced realization, numerical methods.
Event Title:European Control Conference, ECC'03
Event Location:Cambridge (UK)
Event Type:international Conference
Event Dates:2003-09-01 - 2003-09-04
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignement
DLR - Research theme (Project):L -- no assignement
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics
Deposited By: elib DLR-Beauftragter
Deposited On:07 Mar 2006
Last Modified:12 Dec 2013 20:02

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