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Applications of mixed H2 and H∞ input design in identification
KTH, School of Electrical Engineering (EES), Automatic Control. (System Identification Group)
KTH, School of Electrical Engineering (EES), Automatic Control. (System Identification Group)
KTH, School of Electrical Engineering (EES), Automatic Control. (System Identification Group)ORCID iD: 0000-0002-9368-3079
2005 (English)In: / [ed] Pavel Zítek, 2005, Vol. 16, 458-463 p.Conference paper, Published paper (Refereed)
Abstract [en]

The objective of this contribution is to quantify benefits of optimal input design compared to the use of standard identification input signals, e.g. PRBS signals for some common, and important, application areas of system identification. Two benchmark problems taken from process control and control of flexible mechanical structures are considered. We present results both when the design is based on knowledge of the true system (in general the optimal design depends on the system itself) and for a practical two step procedure when an initial model estimate is used in the design instead of the true system. The results show that there is a substantial reduction in experiment time and input excitation level. A discussion on the sensitivity of the optimal input design to model estimates is provided.

Place, publisher, year, edition, pages
2005. Vol. 16, 458-463 p.
Series
IFAC Proceedings Volumes (IFAC-PapersOnline), ISSN 1474-6670 ; Volume 16
Keyword [en]
Identification, Input design, Mechanical systems, Process control, Application area, Bench-mark problems, Excitation levels, Identification input, Mechanical structures, Mixed H, Model estimates, Optimal design, Optimal input design, PRBS signals, Substantial reduction, Two-step procedure, Automation, Control, Design, Identification (control systems), Optimization
National Category
Control Engineering
Research subject
SRA - ICT
Identifiers
URN: urn:nbn:se:kth:diva-60549Scopus ID: 2-s2.0-79960728805ISBN: 978-008045108-4 (print)OAI: oai:DiVA.org:kth-60549DiVA: diva2:478689
Conference
16th Triennial World Congress of International Federation of Automatic Control, IFAC 2005; Prague; Czech Republic; 3 July 2005 through 8 July 2005
Funder
Swedish Research Council, 621-2001-2147
Note

QC 20120117

Available from: 2012-01-16 Created: 2012-01-13 Last updated: 2014-12-05Bibliographically approved

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Hjalmarsson, Håkan

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Citation style
  • apa
  • harvard1
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Output format
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