Paper
High-Power Amorphous Motor with Sm-Fe-N-based Bonded Magnet
2019 Volume 139 Issue 12 Pages 1015-1021
Details
2019 Volume 139 Issue 12 Pages 1015-1021
We have developed a high-efficiency (IE5 class), 11kW axial-flux permanent magnet motor (AFPM) with ferrite magnets and amorphous cores. In this study, we examined a high-power AFPM under the same volume as the 11kW AFPM. To increase the motor power, the torque and rotation speed were improved more than those of the 11kW AFPM. In particular, Sm-Fe-N (Samarium-Iron-Nitrogen) magnets are used in rotors to improve the torque. Consequently, the prototype of 44kW (85Nm, 4950r/min) AFPM could achieve efficiency standard IE 5 (>96.0%).
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