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Improvements of the T-Ω method for 3-D eddy current analysis

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4 Author(s)
Nakata, T. ; Dept. of Electr. Eng., Okayama Univ., Japan ; Takahashi, N. ; Fujiwara, K. ; Okada, Y.

An improved T-Ω method that can analyze magnetic fields produced not only by eddy currents but also by magnetizing currents is proposed. The method is applied to the analysis of 3-D eddy-current models with holes. The usefulness of the method is investigated by comparing calculated results with measured results and with results obtained by the A-Φ method. The T-Ω method has the advantage that the CPU time can be considerably reduced when most of the analyzed region is current-free and the eddy current flows two-dimensionally. The method is especially effective when the shape of the winding is simple and the distribution of magnetizing current is known beforehand. It is not effective when most of the analyzed region is current-carrying

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Magnetics, IEEE Transactions on  (Volume:24 ,  Issue: 1 )