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Title: High-Strength Undiffused Brushless (HSUB) Machine

Abstract

This paper introduces a new high-strength undiffused brushless machine that transfers the stationary excitation magnetomotive force to the rotor without any brushes. For a conventional permanent magnet (PM) machine, the air gap flux density cannot be enhanced effectively but can be weakened. In the new machine, both the stationary excitation coil and the PM in the rotor produce an enhanced air gap flux. The PM in the rotor prevents magnetic flux diffusion between the poles and guides the reluctance flux path. The pole flux density in the air gap can be much higher than what the PM alone can produce. A high-strength machine is thus obtained. The air gap flux density can be weakened through the stationary excitation winding. This type of machine is particularly suitable for electric and hybrid-electric vehicle applications. Patents of this new technology are either granted or pending.

Authors:
 [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Power Electronics and Electric Machinery Research Facility
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
931703
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: The IEEE International Electric Machines and Drives Conference, Antalya, Turkey, 20070503, 20070505
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; ELECTRIC MOTORS; EXCITATION; FLUX DENSITY; MAGNETIC FLUX; PERMANENT MAGNETS; ROTORS; ELECTRIC-POWERED VEHICLES; HYBRID ELECTRIC-POWERED VEHICLES

Citation Formats

Hsu, John S, Tolbert, Leon M, and Lee, Seong T. High-Strength Undiffused Brushless (HSUB) Machine. United States: N. p., 2007. Web.
Hsu, John S, Tolbert, Leon M, & Lee, Seong T. High-Strength Undiffused Brushless (HSUB) Machine. United States.
Hsu, John S, Tolbert, Leon M, and Lee, Seong T. Mon . "High-Strength Undiffused Brushless (HSUB) Machine". United States. doi:.
@article{osti_931703,
title = {High-Strength Undiffused Brushless (HSUB) Machine},
author = {Hsu, John S and Tolbert, Leon M and Lee, Seong T},
abstractNote = {This paper introduces a new high-strength undiffused brushless machine that transfers the stationary excitation magnetomotive force to the rotor without any brushes. For a conventional permanent magnet (PM) machine, the air gap flux density cannot be enhanced effectively but can be weakened. In the new machine, both the stationary excitation coil and the PM in the rotor produce an enhanced air gap flux. The PM in the rotor prevents magnetic flux diffusion between the poles and guides the reluctance flux path. The pole flux density in the air gap can be much higher than what the PM alone can produce. A high-strength machine is thus obtained. The air gap flux density can be weakened through the stationary excitation winding. This type of machine is particularly suitable for electric and hybrid-electric vehicle applications. Patents of this new technology are either granted or pending.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}

Conference:
Other availability
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