Flux-linkage calculation in permanent-magnet motors using the frozen permeabilities method

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Journal Article
IEEE Transactions On Magnetics, 2005, 41 (10), pp. 3946 - 3948
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Finite-element analysis can be used to determine the magnetization characteristics in terms of curves of flux-linkage against current or rotor position. The "frozen permeabilities" technique is presented as a method of apportioning flux-linkage contributions to the phase currents and permanent magnets, and for inductance calculations. Results from a split-phase interior permanent magnet motor are presented and compared with experimental data. Drawbacks to the method are discussed.
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