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Structured Model Order Reduction of Boiler-Header Models
KTH, School of Electrical Engineering (EES), Automatic Control.
KTH, School of Electrical Engineering (EES), Automatic Control.ORCID iD: 0000-0003-1835-2963
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2011 (English)In: Proceedings of the 18th IFAC World Congress, 2011Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents a model reduction of a boiler-header system. Since it is desirable that the reduced model retains the structure of the full model where the boilers are interconnected with the header, a structured model reduction technique is applied, which takes the entire system into account. This method requires the solution of two linear matrix inequalities to obtain the structured Gramians of the system, but in general it is not possible to guarantee feasibility of these linear matrix inequalities. However for stable systems that are connected in series with a negative feedback-loop with strictly positive real subsystems, we prove that solutions always exist. By showing that the boiler-header system belongs to this class of systems it follows that the structured model reduction method can be applied regardless of the system parameters.

Place, publisher, year, edition, pages
2011.
Keyword [en]
Structural properties; LMIs; Robust control applications
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:kth:diva-75298DOI: 10.3182/20110828-6-IT-1002.02978Scopus ID: 2-s2.0-84866761503OAI: oai:DiVA.org:kth-75298DiVA: diva2:490430
Conference
18th IFAC World Congress. Milano (Italy). August 28 - September 2, 2011
Note
QC 20120416Available from: 2012-02-05 Created: 2012-02-05 Last updated: 2012-04-16Bibliographically approved

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Sandberg, Henrik

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  • apa
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