Electric machine
Abstract
A permanent magnet machine includes a stator having a stator core, a plurality of stator teeth and plurality of stator windings coupled to the stator core. The stator is configured to generate a stator magnetic rotating field when the stator windings are excited with an electric current. The stator magnetic rotating field includes both synchronous sub-harmonic and super-harmonic components. The permanent magnet machine also includes a rotor that is disposed within the stator. The rotor includes a rotor core and a plurality of rotor magnets that are coupled to the rotor core. The rotor magnets are further configured to have a predefined orientation profile such that when the stator windings are excited with an electric current, sub-harmonic and super-harmonic magnetic rotating fields are generated in the rotor magnetic field. The stator sub-harmonic and super-harmonic magnetic rotating fields interact with the rotor sub-harmonic and super-harmonic magnetic rotating fields and produce an aiding torque on in the permanent magnet machine.
- Inventors:
- Issue Date:
- Research Org.:
- GE Global Research, Niskayuna, New York (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1531893
- Patent Number(s):
- 8633627
- Application Number:
- 13/220,848
- Assignee:
- General Electric Company (Niskayuna, NY)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
- DOE Contract Number:
- FC26-07NT43122
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2011-08-30
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
El-Refaie, Ayman Mohamed Fawzi, Alexander, James Pellegrino, Reddy, Patel Bhageerath, and Shah, Manoj Ramprasad. Electric machine. United States: N. p., 2014.
Web.
El-Refaie, Ayman Mohamed Fawzi, Alexander, James Pellegrino, Reddy, Patel Bhageerath, & Shah, Manoj Ramprasad. Electric machine. United States.
El-Refaie, Ayman Mohamed Fawzi, Alexander, James Pellegrino, Reddy, Patel Bhageerath, and Shah, Manoj Ramprasad. Tue .
"Electric machine". United States. https://www.osti.gov/servlets/purl/1531893.
@article{osti_1531893,
title = {Electric machine},
author = {El-Refaie, Ayman Mohamed Fawzi and Alexander, James Pellegrino and Reddy, Patel Bhageerath and Shah, Manoj Ramprasad},
abstractNote = {A permanent magnet machine includes a stator having a stator core, a plurality of stator teeth and plurality of stator windings coupled to the stator core. The stator is configured to generate a stator magnetic rotating field when the stator windings are excited with an electric current. The stator magnetic rotating field includes both synchronous sub-harmonic and super-harmonic components. The permanent magnet machine also includes a rotor that is disposed within the stator. The rotor includes a rotor core and a plurality of rotor magnets that are coupled to the rotor core. The rotor magnets are further configured to have a predefined orientation profile such that when the stator windings are excited with an electric current, sub-harmonic and super-harmonic magnetic rotating fields are generated in the rotor magnetic field. The stator sub-harmonic and super-harmonic magnetic rotating fields interact with the rotor sub-harmonic and super-harmonic magnetic rotating fields and produce an aiding torque on in the permanent magnet machine.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 21 00:00:00 EST 2014},
month = {Tue Jan 21 00:00:00 EST 2014}
}
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