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Linear-Quadratic Optimal Time-varying Observers with Time-varying Guaranteed Convergence Rate
Luleå University of Technology. (Systemteknik)
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Automatic control. (reglerteknik)
2009 (English)In: IET Control Theory and Applications, ISSN 1751-8644, Vol. 3, no 2, 181-188 p.Article in journal (Refereed) Published
Abstract [en]

A well-known method by Anderson and Moore for optimal quadratic   feedback design with guaranteed constant convergence rate for linear   time-invariant systems is generalised to linear complex-valued   time-varying systems and time-varying convergence rates. The resulting   method is readily applicable to observer design for state-affine   systems and unifies methods developed there with the classical   quadratic optimal state estimation and control. A pre-assigned   time-varying convergence rate is shown to significantly improve the   observer's transients in comparison with a constant one being employed   for flux estimation in induction machines.

Place, publisher, year, edition, pages
2009. Vol. 3, no 2, 181-188 p.
National Category
Engineering and Technology
URN: urn:nbn:se:uu:diva-119903DOI: 10.1049/iet-cta:20080055ISI: 000263904900003OAI: oai:DiVA.org:uu-119903DiVA: diva2:301256
Available from: 2010-03-03 Created: 2010-03-03 Last updated: 2010-08-25Bibliographically approved

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