Title:
PERMANENT MAGNET TYPE RELUCTANCE ROTARY ELECTRIC MACHINE
Document Type and Number:
Japanese Patent JP3967760
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a small permanent magnet type reluctance rotary electric machine which can perform variable speed operation over a wide range from low speed to high speed with high output.
SOLUTION: The permanent magnet type reluctance rotary electric machine comprises a stator formed of a stator core having an armature winding contained in slots, and a rotor formed of a rotor core provided with a plurality of magnetic barriers by cavities formed on the inside of the stator such that a portion (d-axis) passing magnetic flux easily and a portion (q-axis) not passing magnetic flux easily are formed alternately and arranged with permanent magnets in the cavities wherein the rotor satisfies a relation WdminP/2πR≥65, assuming the shortest distance between the cavities and the permanent magnets arranged in a direction satisfying the relation of q-axis direction is Wdmin, the number of poles is P, and the radius of the rotor is R [m].
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Inventors:
Tomoyuki Hattori
Kazuto Sakai
New constitution
Kazuto Sakai
New constitution
Application Number:
JP2006135665A
Publication Date:
August 29, 2007
Filing Date:
May 15, 2006
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H02K19/10; H02K1/22; H02K1/27
Domestic Patent References:
| JP2000116085A |
Other References:
堺和人、外5名,高効率・高出力の永久磁石式リラクタンスモータの開発,平成11年電気学会全国大会講演論文集,日本,電気学会,1999年 3月31日
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto