Field-oriented modelling for a two-phase axial-flux brushless motor in a direct-drive electric vehicle by using similarity transformation and singular value decomposition methods

J. L. Kuo*, K. L. Chao

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

1 Scopus citations

Abstract

Modelling techniques are proposed for describing a two-phase axial-flux brushless motor in a direct-drive electric vehicle. Similarity transformation and singular value decomposition (ST-SVD) methods are used to linearize the system model. Stationary and cosecant coordinate models are derived on the basis of the methods proposed. Decoupled inductances and constant torque relations are also obtained. The model proposed is a very useful aid in describing the system dynamics. Simulation and experimental results are illustrated to verify the validity of the model. The given system modelling techniques can provide valuable mathematical models for associated vector control.

Original languageEnglish
Pages (from-to)633-646
Number of pages14
JournalProceedings of the Institution of Mechanical Engineers. Part I: Journal of Systems and Control Engineering
Volume223
Issue number5
DOIs
StatePublished - 2009
Externally publishedYes

Keywords

  • Cosecant coordinate model
  • Similarity transformation
  • Singular value decomposition
  • Stationary coordinate model
  • Two-phase axial-flux brushless motor

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