Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

An Isolated High-Power Integrated Charger in Electrified-Vehicle Applications

Haghbin, Saeid ; Lundmark, Sonja ; Alaküla, Mats LU orcid and Carlson, Ola (2011) In IEEE Transactions on Vehicular Technology 60(9). p.4115-4126
Abstract
For electric and hybrid vehicles that use grid power to charge the battery, traction circuit components are not normally engaged during the charging time; hence, there is a possibility of using the traction circuit components in the charger circuit to have an onboard integrated charger. An isolated high-power integrated charger based on a special electrical machine with a double set of stator windings is described. Through the reconfiguration of the motor stator windings in the charging mode, a six-terminal machine is achieved. The so-called motor/generator acts as an isolated three-phase power source after synchronization with the utility grid in the charging mode. This rotary isolated power source constitutes a three-phase boost... (More)
For electric and hybrid vehicles that use grid power to charge the battery, traction circuit components are not normally engaged during the charging time; hence, there is a possibility of using the traction circuit components in the charger circuit to have an onboard integrated charger. An isolated high-power integrated charger based on a special electrical machine with a double set of stator windings is described. Through the reconfiguration of the motor stator windings in the charging mode, a six-terminal machine is achieved. The so-called motor/generator acts as an isolated three-phase power source after synchronization with the utility grid in the charging mode. This rotary isolated power source constitutes a three-phase boost rectifier (battery charger) with full utilization of the inverter. The motor windings are reconfigured by a relay-based switching device for the charging and traction modes. This paper presents the mathematical model of the motor/generator and explains the system's functionality for the traction and charging modes. Furthermore, the charger grid synchronization and charge control are described. Finally, the simulation results are presented for a practically designed system with a traction power of 25 kW and a possible charge power of 12.5 kW. (Less)
Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Electrified vehicles, integrated battery charger, isolated charger
in
IEEE Transactions on Vehicular Technology
volume
60
issue
9
pages
4115 - 4126
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • wos:000297945900003
  • scopus:83655191394
ISSN
1939-9359
DOI
10.1109/TVT.2011.2162258
language
English
LU publication?
yes
id
06e56461-5e68-491c-ae57-1a22d76a01fa (old id 2348613)
date added to LUP
2016-04-01 10:22:49
date last changed
2022-11-08 23:25:51
@article{06e56461-5e68-491c-ae57-1a22d76a01fa,
  abstract     = {{For electric and hybrid vehicles that use grid power to charge the battery, traction circuit components are not normally engaged during the charging time; hence, there is a possibility of using the traction circuit components in the charger circuit to have an onboard integrated charger. An isolated high-power integrated charger based on a special electrical machine with a double set of stator windings is described. Through the reconfiguration of the motor stator windings in the charging mode, a six-terminal machine is achieved. The so-called motor/generator acts as an isolated three-phase power source after synchronization with the utility grid in the charging mode. This rotary isolated power source constitutes a three-phase boost rectifier (battery charger) with full utilization of the inverter. The motor windings are reconfigured by a relay-based switching device for the charging and traction modes. This paper presents the mathematical model of the motor/generator and explains the system's functionality for the traction and charging modes. Furthermore, the charger grid synchronization and charge control are described. Finally, the simulation results are presented for a practically designed system with a traction power of 25 kW and a possible charge power of 12.5 kW.}},
  author       = {{Haghbin, Saeid and Lundmark, Sonja and Alaküla, Mats and Carlson, Ola}},
  issn         = {{1939-9359}},
  keywords     = {{Electrified vehicles; integrated battery charger; isolated charger}},
  language     = {{eng}},
  number       = {{9}},
  pages        = {{4115--4126}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEEE Transactions on Vehicular Technology}},
  title        = {{An Isolated High-Power Integrated Charger in Electrified-Vehicle Applications}},
  url          = {{http://dx.doi.org/10.1109/TVT.2011.2162258}},
  doi          = {{10.1109/TVT.2011.2162258}},
  volume       = {{60}},
  year         = {{2011}},
}