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Comparison between a novel claw-pole electrically magnetized synchronous machine without slip-rings and a permanent magnet machine

Martinez, David LU and Alaküla, Mats LU (2003) International Electric Machines & Drives Conference In IEMDC'03. IEEE International Electric Machines and Drives Conference (Cat. No.03EX679) p.1351-1356
Abstract
Electrical machines used in EV/HEV traction applications are usually driven at speeds where field weakening operation is required. In this region, electrically magnetized machines are more easily operated than permanent magnet machines. This paper discusses the performance of an electrically magnetized synchronous machine where the field coils are placed in magnetically conducting end-plates attached to the stator, eliminating the need of slip-rings. The performance is compared to a radial permanent magnet synchronous machine of similar size, using simplified thermal models and electromagnetic finite element simulations. The machines are intended to be incorporated in a novel HEV application, where the electrical machine is used to adjust... (More)
Electrical machines used in EV/HEV traction applications are usually driven at speeds where field weakening operation is required. In this region, electrically magnetized machines are more easily operated than permanent magnet machines. This paper discusses the performance of an electrically magnetized synchronous machine where the field coils are placed in magnetically conducting end-plates attached to the stator, eliminating the need of slip-rings. The performance is compared to a radial permanent magnet synchronous machine of similar size, using simplified thermal models and electromagnetic finite element simulations. The machines are intended to be incorporated in a novel HEV application, where the electrical machine is used to adjust the acceleration of the piston in the combustion engine in order to improve the combustion process. Results indicate that at steady state operation the permanent magnet machine is able to deliver more torque per total mass (1.74 Nm/kg) than the electrically magnetized machine (1.06 Nm/kg). This is mainly due to the increased weight or the arrangement used for the electrical magnetization (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
stator, thermal models, field coils, field weakening operation, hybrid electric vehicles, electric vehicles, traction applications, claw-pole electrically magnetized synchronous machine, permanent magnet machine, electrical magnetization, torque per total mass, electromagnetic finite element simulations
in
IEMDC'03. IEEE International Electric Machines and Drives Conference (Cat. No.03EX679)
pages
1351 - 1356
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
International Electric Machines & Drives Conference
external identifiers
  • WOS:000183794800200
  • Scopus:17044394859
ISBN
0-7803-7817-2
DOI
10.1109/IEMDC.2003.1210627
language
English
LU publication?
yes
id
57c50a83-1254-4e62-800e-4d166cb1c153 (old id 612549)
date added to LUP
2007-11-30 14:12:50
date last changed
2016-10-13 04:44:59
@misc{57c50a83-1254-4e62-800e-4d166cb1c153,
  abstract     = {Electrical machines used in EV/HEV traction applications are usually driven at speeds where field weakening operation is required. In this region, electrically magnetized machines are more easily operated than permanent magnet machines. This paper discusses the performance of an electrically magnetized synchronous machine where the field coils are placed in magnetically conducting end-plates attached to the stator, eliminating the need of slip-rings. The performance is compared to a radial permanent magnet synchronous machine of similar size, using simplified thermal models and electromagnetic finite element simulations. The machines are intended to be incorporated in a novel HEV application, where the electrical machine is used to adjust the acceleration of the piston in the combustion engine in order to improve the combustion process. Results indicate that at steady state operation the permanent magnet machine is able to deliver more torque per total mass (1.74 Nm/kg) than the electrically magnetized machine (1.06 Nm/kg). This is mainly due to the increased weight or the arrangement used for the electrical magnetization},
  author       = {Martinez, David and Alaküla, Mats},
  isbn         = {0-7803-7817-2},
  keyword      = {stator,thermal models,field coils,field weakening operation,hybrid electric vehicles,electric vehicles,traction applications,claw-pole electrically magnetized synchronous machine,permanent magnet machine,electrical magnetization,torque per total mass,electromagnetic finite element simulations},
  language     = {eng},
  pages        = {1351--1356},
  publisher    = {ARRAY(0xa07fc28)},
  series       = {IEMDC'03. IEEE International Electric Machines and Drives Conference (Cat. No.03EX679)},
  title        = {Comparison between a novel claw-pole electrically magnetized synchronous machine without slip-rings and a permanent magnet machine},
  url          = {http://dx.doi.org/10.1109/IEMDC.2003.1210627},
  year         = {2003},
}