Numerical investigation on torque harmonics reduction of interior pm synchronous motor with concentrated winding

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Abstract

This paper deals with torque harmonic characteristics of interior permanent magnet synchronous motor (IPMSM) with concentrated winding. In particular, torque ripples including EMF harmonics and cogging torque are numerically investigated with the nonlinear finite element method (FEM), and torque harmonic components are identified with Fourier fast transform (FFT). In particular, the novel design methods to compensate the specified torque harmonics are proposed, and its effectiveness are clarified according to the representative control strategies for IPMSM, maximum torque per ampere (MTPA) and flux-weakening control.

Original languageEnglish
Article number6136661
Pages (from-to)927-930
Number of pages4
JournalIEEE Transactions on Magnetics
Volume48
Issue number2
DOIs
StatePublished - Feb 2012

Keywords

  • Concentrated winding
  • constant power speed ratio (CPSR)
  • flux-weakening control
  • interior permanent magnet synchronous motor (IPMSM)
  • maximum torque per ampere (MTPA)
  • torque harmonics
  • torque ripple

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