| 摘要 |
A high speed induction motor assembly comprising a solid, multilayer rotor and a stator core with a fractional-slot tooth-coil winding is provided. The ratio of slots number per pole and phase is sub-unitary. The rotor includes a solid ferromagnetic core coated with a layer of copper. Due to the permeability of the copper material coating the solid rotor core, the motor assembly may have an effective radial magnetic air-gap that is larger than its mechanical radial air gap, which is defined between the inner surface of the stator core and the outer surface of the copper layer coating the solid rotor core. |
