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Title: Flux control and one-hundred and eighty degree core systems

Abstract

A two-phase or four-phase electric machine includes a first stator part and a second stator part disposed about ninety electrical degrees apart. Stator pole parts are positioned near the first stator part and the second stator part. An injector injects a third-harmonic frequency current that is separate from and not produced by the fundamental current driving the first stator part and the second stator part. The electric angular speed of the third-harmonic rotating field comprises .theta. ##EQU00001## where p comprises the number of pole pairs, .theta. comprises a mechanical angle and t comprise time in seconds.

Inventors:
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1080284
Patent Number(s):
8319464
Application Number:
12/543,039
Assignee:
U.S. Department of Energy (Washington, DC)
Patent Classifications (CPCs):
H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
H - ELECTRICITY H02 - GENERATION H02P - CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Hsu, John S. Flux control and one-hundred and eighty degree core systems. United States: N. p., 2012. Web.
Hsu, John S. Flux control and one-hundred and eighty degree core systems. United States.
Hsu, John S. Tue . "Flux control and one-hundred and eighty degree core systems". United States. https://www.osti.gov/servlets/purl/1080284.
@article{osti_1080284,
title = {Flux control and one-hundred and eighty degree core systems},
author = {Hsu, John S},
abstractNote = {A two-phase or four-phase electric machine includes a first stator part and a second stator part disposed about ninety electrical degrees apart. Stator pole parts are positioned near the first stator part and the second stator part. An injector injects a third-harmonic frequency current that is separate from and not produced by the fundamental current driving the first stator part and the second stator part. The electric angular speed of the third-harmonic rotating field comprises .theta. ##EQU00001## where p comprises the number of pole pairs, .theta. comprises a mechanical angle and t comprise time in seconds.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {11}
}

Works referenced in this record:

Five-phase interior permanent magnet motor with low torque pulsation
conference, January 2005