Title:
回転電機およびエレベータ
Document Type and Number:
Japanese Patent JP6552929
Kind Code:
B2
Abstract:
According to one embodiment, a rotating electrical machine includes an annular winding, L (L is an arbitrary integer) stator magnetic poles, and L rotor magnetic poles having the same polarity. The L stator magnetic poles are disposed apart from each other in a rotational direction and facing the winding. The L rotor magnetic poles have the same polarity as each other. The L rotor magnetic poles are disposed apart from each other in the rotational direction and configured to face the L stator magnetic poles If an order of the fundamental wave component of a torque pulsation is N, M (M≤L) distances between centers of the adjacent poles between pole centers in one set of either the L stator magnetic poles or the L rotor magnetic poles are combinations of (Θ, Θ+Θ1/M, Θ+Θ1×2/M, . . . , and Θ+1×(M−1)/M), and Θ1 satisfies the relationship (180°/N)<Θ1<(540°/N) in the notation of electrical angle.
More Like This:
Inventors:
Yasuto Ueda
Hiroshi Takahashi
Hiroshi Takahashi
Application Number:
JP2015183146A
Publication Date:
July 31, 2019
Filing Date:
September 16, 2015
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H02K21/14; H02K1/22; H02K1/27
Domestic Patent References:
| JP2015061495A | ||||
| JP2015520601A | ||||
| JP2001333553A | ||||
| JP2002112480A | ||||
| JP2008167646A | ||||
| JP2016178786A | ||||
| JP2010011637A | ||||
| JP2016178820A |
Attorney, Agent or Firm:
Shiga International Patent Office