ROTATING ELECTRIC MACHINE

WIPO Patent Application WO/2022/153517

A1

The rotating electric machine according to the present disclosure comprises a stator and a rotor and is characterized as follows. The rotor has a plurality of permanent magnets arranged in the circumferential direction of the rotation axis and a plurality of protrusions arranged in said circumferential direction. The stator has a plurality of teeth, armature windings wound around the plurality of teeth, and field windings wound around the plurality of teeth. Field poles are formed on the plurality of protrusions by the energization of the field windings and the plurality of permanent magnets. The plurality of permanent magnets and the plurality of teeth are alternately disposed at intervals in the circumferential direction to form the field poles. All of the plurality of permanent magnets have the same polarity. The number of pole pairs Pa of the armature windings, the number of pole pairs Pf of the field windings, and the number of poles Pr of the field poles formed by the plurality of permanent magnets and the plurality of protrusions satisfy every one of | Pa - Pf | ≠ 1, | Pr - Pf | ≠ 1, and | Pa - Pr | ≠ 1, where Pr is an even number.

MITSUDA HIROSHI (JP)
ITO KAZUMASA (JP)
FUKAMI TADASHI (JP)
KOYAMA MASATO (JP)

PCT/JP2021/001392

July 21, 2022

January 18, 2021

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MITSUBISHI ELECTRIC CORP (JP)
KANAZAWA INSTITUTE OF TECH (JP)

H02K21/14

JP2019149891A	2019-09-05
JP2017135863A	2017-08-03

SANNO PATENT ATTORNEYS OFFICE (JP)

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