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Model reduction using a frequency-limited H2-cost
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
2014 (English)In: Systems & control letters (Print), ISSN 0167-6911, E-ISSN 1872-7956, Vol. 67, no 1, 32-39 p.Article in journal (Refereed) Published
Abstract [en]

We propose a method for model reduction on a given frequency range, without the use of input and output filter weights. The method uses a nonlinear optimization approach to minimize a frequency limited H2 like cost function. An important contribution of the paper is the derivation of the gradient of the proposed cost function. The fact that we have a closed form expression for the gradient and that considerations have been taken to make the gradient computationally efficient to compute enables us to efficiently use off-the-shelf optimization software to solve the optimization problem. © 2014 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
Elsevier , 2014. Vol. 67, no 1, 32-39 p.
Keyword [en]
H2-norm; Model reduction; Optimization
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-116389DOI: 10.1016/j.sysconle.2014.02.004ISI: 000335290600006Scopus ID: 2-s2.0-84896801170OAI: oai:DiVA.org:liu-116389DiVA: diva2:798762
Available from: 2015-03-27 Created: 2015-03-26 Last updated: 2017-12-04

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Petersson, DanielLöfberg, Johan

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf