Permanent magnet dynamo electric machine, and permanent magnet synchronous generator for wind power generation
US6894413B2 · kind B2 · utility
14Cited by
3References
16Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 19, 2002 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Dec 19, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dynamo electric machine includes a rotor having magnetic poles with permanent magnets and a stator having armature windings concentratedly wound around teeth. When the number of pole pairs of the magnetic poles of the rotor is P, diameter of the rotor is D (meters), and a spatial harmonic order of a predetermined harmonic component of an armature magnetomotive force of the rotor is N ((N=P to the 1.5th power)×(N to the minus 4-th power)×(the square of P)×D<0.6 (in meters).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.