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Spherical Harmonic Identification Using a Priori Information About an Electrical Device

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3 Author(s)
Schmerber, L. ; Lab. d''Electrotech. de Grenoble, CNRS, St. Martin d''Heres ; Rouve, L. ; Foggia, A.

This paper deals with a method using the spherical harmonic expansion to identify a magnetic equivalent model to a given electrical device. The most significant issue of this identification is the number of required magnetic sensors to obtain a valid model. Therefore, our method is based on a probabilistic approach to solve inverse problems using prior information of the source like periodicities or symmetries. Thus, the required number of sensors has strongly decreased. The method is illustrated by a finite-element method simulated permanent magnet motor

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Magnetics, IEEE Transactions on  (Volume:43 ,  Issue: 4 )