3-D analytical modeling of no-load magnetic field of ironless axial flux permanent magnet machine

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Journal Article
IEEE Transactions on Magnetics, 2012, 48 (11), pp. 2929 - 2932
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A three-dimensional analytical modeling of the magnetic field of the stator-ironless axial flux permanent magnet (AFPM) machine under open-circuit condition is presented in this paper. It involves the analytical solution of the governing field equations in the region between back-irons in the cylindrical coordinate, in which the magnets are assumed to be axially magnetized and have constant relative recoil permeability. The proposed modeling method is applied to a specific AFPM machine, and the analytical results are in good agreement with those of three-dimensional finite element analysis (FEA). © 1965-2012 IEEE.
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