Analysis method to a Halbach PM ironless linear motor with trapezoid windings

Gan Zhou*, Xueliang Huang, Hao Jiang, Li Tan, Jianning Dong

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

Halbach PM ironless linear motors mostly adopt film windings. In this paper, a novel Halbach PM ironless linear motor with trapezoid windings is proposed and analyzed. The trapezoid windings can achieve a primarily single-sided and well sinusoidal magnetic field. After current density formula is derived, the magnetic flux density equations of the trapezoid windings are formulated using the vector potential method. Based on analytical field, the force ripples of the Halbach PM ironless linear motor with trapezoid windings are analyzed using Maxwell stress tensor method. The simulations with FE method and numerical Lorentz force method are presented to show the validity of the analysis method.

Original languageEnglish
Article number6027551
Pages (from-to)4167-4170
Number of pages4
JournalIEEE Transactions on Magnetics
Volume47
Issue number10
DOIs
Publication statusPublished - Oct 2011
Externally publishedYes

Keywords

  • Force ripple
  • Halbach
  • ironless
  • linear motor
  • trapezoid winding
  • well sinusoidal

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