skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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:
; ; ;
Publication Date:
Research Org.:
General Electric Company, Niskayuna, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531893
Patent Number(s):
8,633,627
Application Number:
13/220,848
Assignee:
General Electric Company (Niskayuna, NY)
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 = {2014},
month = {1}
}

Patent:

Save / Share:

Works referenced in this record:

Permanent magnet rotor and brushless motor
patent, September 2005


Motor
patent-application, June 2010


Motor
patent, August 2010


Motor
patent-application, July 2006


Very high permanent magnet type electric rotating machine system
patent, August 2002