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Alternator loss breakdown and use of alternative rectifier diodes for improvement of vehicle electrical power system efficiency
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Sarafianos, Dimitrios, Logan, Thomas G., McMahon, Richard A., Flack, Timothy J. and Pickering, Stephen (2014) Alternator loss breakdown and use of alternative rectifier diodes for improvement of vehicle electrical power system efficiency. In: Power 16th International Electronics and Motion Control Conference and Exposition (PEMC), 2014 , Antalya, Turkey, 21-24 Sep 2014. Published in: Power Electronics and Motion Control Conference and Exposition (PEMC), 2014 16th International, 2014 pp. 502-507. doi:10.1109/EPEPEMC.2014.6980543
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Official URL: http://dx.doi.org/10.1109/EPEPEMC.2014.6980543
Abstract
The losses in the electrical power generation system of a conventional internal combustion engine (ICE) vehicle is investigated. The system consists of a six-phase Lundell alternator and a six-phase passive rectifier. The losses of the alternator are measured using a test rig that simulates the ICE operation. It is shown that the Press-fit PN diodes currently in use in conventional alternator rectifiers are responsible for a typical 10-12 % conversion loss. Thus, a number of comparable alternatives to the Press-fit PN diodes are identified. Several passive rectifiers are built and tested in order to evaluate the efficiency improvement of the rectifying stage as well as of the combined alternator-rectifier system. Preliminary results indicate a positive trend for the rectifier conversion efficiency, suggesting a significant impact on the maximum power generation capability of the system.
Item Type: | Conference Item (Paper) | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||
Journal or Publication Title: | Power Electronics and Motion Control Conference and Exposition (PEMC), 2014 16th International | ||||
Publisher: | IEEE | ||||
Book Title: | 2014 16th International Power Electronics and Motion Control Conference and Exposition | ||||
Official Date: | 2014 | ||||
Dates: |
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Volume: | 2014 | ||||
Page Range: | pp. 502-507 | ||||
DOI: | 10.1109/EPEPEMC.2014.6980543 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Conference Paper Type: | Paper | ||||
Title of Event: | Power 16th International Electronics and Motion Control Conference and Exposition (PEMC), 2014 | ||||
Type of Event: | Conference | ||||
Location of Event: | Antalya, Turkey | ||||
Date(s) of Event: | 21-24 Sep 2014 | ||||
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