Linear-Quadratic Optimal Time-varying Observers with Time-varying Guaranteed Convergence Rate
2009 (English)In: IET Control Theory and Applications, ISSN 1751-8644, Vol. 3, no 2, 181-188 p.Article in journal (Refereed) Published
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.
Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-119903DOI: 10.1049/iet-cta:20080055ISI: 000263904900003OAI: oai:DiVA.org:uu-119903DiVA: diva2:301256