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Title: Direct control of air gap flux in permanent magnet machines

Abstract

A method and apparatus for field weakening in PM machines uses field weakening coils to produce flux in one or more stators, including a flux which counters flux normally produced in air gaps between the stator(s) and the rotor which carries the PM poles. Several modes of operation are introduced depending on the magnitude and polarity of current in the field weakening coils. The invention is particularly useful for, but not limited to, the electric vehicle drives and PM generators.

Authors:
Publication Date:
Sponsoring Org.:
US Department of Energy
OSTI Identifier:
20050911
Alternate Identifier(s):
OSTI ID: 20050911
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 2 May 2000
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ELECTRIC MOTORS; PERMANENT MAGNETS; MAGNETIC FIELDS; STATORS; MAGNETIC FLUX; MAGNET COILS; ELECTRIC-POWERED VEHICLES; ELECTRIC GENERATORS

Citation Formats

Hsu, J.S. Direct control of air gap flux in permanent magnet machines. United States: N. p., 2000. Web.
Hsu, J.S. Direct control of air gap flux in permanent magnet machines. United States.
Hsu, J.S. Tue . "Direct control of air gap flux in permanent magnet machines". United States.
@article{osti_20050911,
title = {Direct control of air gap flux in permanent magnet machines},
author = {Hsu, J.S.},
abstractNote = {A method and apparatus for field weakening in PM machines uses field weakening coils to produce flux in one or more stators, including a flux which counters flux normally produced in air gaps between the stator(s) and the rotor which carries the PM poles. Several modes of operation are introduced depending on the magnitude and polarity of current in the field weakening coils. The invention is particularly useful for, but not limited to, the electric vehicle drives and PM generators.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {5}
}