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Analytical characterization of magnetic force harmonics

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Eomys-doc06

This part of the training explains analytically why magnetic force harmonics appear at some specific frequencies and wavenumbers depending on topology and slot/pole combination. General formula of magnetic force harmonics in Permanent Magnet Synchronous Machines and Induction Machines are provided by combining permeance, magnetomotive force, and flux density harmonics step by step. 

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Detailed content:

  • Slotting harmonics in PMSM
    • Fundamental force
    • Pulsating forces
    • Lowest wavenumber forces
    • Generalization
  • Slotting harmonics in IM
    • Fundamental force
    • Pulsating forces
    • Lowest wavenumber forces
    • Generalization
  • Switching harmonics
  • Effect of faults and tolerances
    • Dynamic and static eccentricities
    • Uneven airgap

Number of slides: 60

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