Spoke permanent magnet machine with reduced torque ripple and method of manufacturing thereof
Abstract
An internal permanent magnet machine includes a rotor assembly having a shaft comprising a plurality of protrusions extending radially outward from a main shaft body and being formed circumferentially about the main shaft body and along an axial length of the main shaft body. A plurality of stacks of laminations are arranged circumferentially about the shaft to receive the plurality of protrusions therein, with each stack of laminations including a plurality of lamination groups arranged axially along a length of the shaft and with permanent magnets being disposed between the stacks of laminations. Each of the laminations includes a shaft protrusion cut formed therein to receive a respective shaft protrusion and, for each of the stacks of laminations, the shaft protrusion cuts formed in the laminations of a respective lamination group are angularly offset from the shaft protrusion cuts formed in the laminations in an adjacent lamination group.
- Inventors:
- Issue Date:
- Research Org.:
- General Electric Co., Schenectady, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1241539
- Patent Number(s):
- 9287742
- Application Number:
- 13/958,693
- Assignee:
- General Electric Company, Schenectady, NY, US
- Patent Classifications (CPCs):
-
H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- DOE Contract Number:
- EE0005573
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2013 Aug 05
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Reddy, Patel Bhageerath, EL-Refaie, Ayman Mohamed Fawzi, Huh, Kum-Kang, and Alexander, James Pellegrino. Spoke permanent magnet machine with reduced torque ripple and method of manufacturing thereof. United States: N. p., 2016.
Web.
Reddy, Patel Bhageerath, EL-Refaie, Ayman Mohamed Fawzi, Huh, Kum-Kang, & Alexander, James Pellegrino. Spoke permanent magnet machine with reduced torque ripple and method of manufacturing thereof. United States.
Reddy, Patel Bhageerath, EL-Refaie, Ayman Mohamed Fawzi, Huh, Kum-Kang, and Alexander, James Pellegrino. Tue .
"Spoke permanent magnet machine with reduced torque ripple and method of manufacturing thereof". United States. https://www.osti.gov/servlets/purl/1241539.
@article{osti_1241539,
title = {Spoke permanent magnet machine with reduced torque ripple and method of manufacturing thereof},
author = {Reddy, Patel Bhageerath and EL-Refaie, Ayman Mohamed Fawzi and Huh, Kum-Kang and Alexander, James Pellegrino},
abstractNote = {An internal permanent magnet machine includes a rotor assembly having a shaft comprising a plurality of protrusions extending radially outward from a main shaft body and being formed circumferentially about the main shaft body and along an axial length of the main shaft body. A plurality of stacks of laminations are arranged circumferentially about the shaft to receive the plurality of protrusions therein, with each stack of laminations including a plurality of lamination groups arranged axially along a length of the shaft and with permanent magnets being disposed between the stacks of laminations. Each of the laminations includes a shaft protrusion cut formed therein to receive a respective shaft protrusion and, for each of the stacks of laminations, the shaft protrusion cuts formed in the laminations of a respective lamination group are angularly offset from the shaft protrusion cuts formed in the laminations in an adjacent lamination group.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {3}
}
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