Contribution to iron losses decrease in AC motor: a new shifted non segmented Grain Oriented magnetic circuit
Résumé
This paper deals with iron losses computation in a new and original AC electric motor magnetic circuit made of shifted non-segmented grain oriented steel laminations. This structure has been recently developed and prototypes have been tested. The latter showed significant core loss decrease compared with motors made of non oriented sheets. In order to evaluate the contribution of different iron losses components in the global decrease, a Finite Element analysis is performed, exploiting experimental Epstein frame loss curves.
Domaines
Sciences de l'ingénieur [physics]
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