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Design of a new axially-laminated interior permanent magnet motor

1995; Institute of Electrical and Electronics Engineers; Volume: 31; Issue: 2 Linguagem: Inglês

10.1109/28.370285

1939-9367

Wen L. Soong, D.A. Staton, T.J.E. Miller,

Magnetic Bearings and Levitation Dynamics

The design of a new type of axially-laminated interior permanent magnet motor drive showing an extremely wide constant-power speed range which exceeds 7.5:1 is described. The effect on the field-weakening performance of the number of poles, the pole-piece material, the rotor bolt holes, the airgap size, the rotor insulation ratio, and the magnet type are analyzed using analytical and finite-element techniques. A 7.5-kW synchronous reluctance and a 7.5-kW interior permanent magnet axially-laminated rotor were built for a commercial induction motor stator and experimental low-speed and field-weakening results are presented. >