Bounding a domain containing all compact invariant sets of the permanent-magnet motor system

Luis N. Coria, Konstantin E. Starkov

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

In this paper we characterize a locus of compact invariant sets of the system describing dynamics of the permanent-magnet synchronous motor (PMSM). We establish that all compact invariant sets of this system are contained in the intersection of one-parameter set of ellipsoids and compute its parameters. In addition, localizations by using a parabolic cylinder, an elliptic paraboloid and a hyperbolic cylinder are obtained. Simple polytopic bounds are derived with help of these localizations. Most of localizations mentioned above remain valid for more specific motor systems; namely, for the interior magnet PMSM and for the surface magnet PMSM. Yet another localization set for the interior magnet PMSM is described. Examples of localization of chaotic attractors existing for some values of parameters of PMSMs are presented as well.

Original languageEnglish
Pages (from-to)3879-3888
Number of pages10
JournalCommunications in Nonlinear Science and Numerical Simulation
Volume14
Issue number11
DOIs
StatePublished - Nov 2009

Keywords

  • Compact invariant set
  • Localization
  • Permanent-magnet motor system

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