D. Binesti et Jp. Ducreux, CORE LOSSES AND EFFICIENCY OF ELECTRICAL MOTORS USING NEW MAGNETIC-MATERIALS, IEEE transactions on magnetics, 32(5), 1996, pp. 4887-4889
Core losses of an 18.5 kW asynchronous motor were measured and compute
d, by means of a suitable electromagnetic fields package, improved for
core loss calculation. The results showed that a 1 to 3% improvement
in efficiency is possible by replacing the conventional soft laminatio
ns by new materials. The differences between measurement and computati
on are mainly attributed to rotating fields inside the stator.