Conference paper

Analytical formula for rotating motor permanent magnet MMF in a general case

This paper presents an analytical formula for the permanent magnet (PM) magnetomotive force (MMF) in a slotted PM rotating motor. To derive this formula, an analytical 2D solution of Poisson's equation for the equivalent slotless configuration using the Fourier series is applied. The formula comprises the case when the PM poles are not symmetrical. The obtained PM MMF can be used to determine the magnetic field using the slot modulation

    Keywords: Fourier series ; magnetic fields ; permanent magnet motors ; Poisson equation


    Ecole Polytech Federale de Lausanne, Switzerland


    MMF rotating motor permanent magnet

    magnetomotive force

    slotted permanent magnet rotating motor

    Poisson equation

    equivalent slotless configuration

    Fourier series

    magnetic field determination


    • LAI-CONF-2004-005

    Record created on 2006-06-15, modified on 2017-05-10


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