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Fault diagnosis of a ZVS dc-dc converter based on dc-link current pulse shapes SCIE SCOPUS

Title
Fault diagnosis of a ZVS dc-dc converter based on dc-link current pulse shapes
Authors
Kim, SYNam, KSong, HSKim, HG
Date Issued
2008-03
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGI
Abstract
The dc-dc converter is a critical component in a hybrid electric vehicle since it supplies power to an electronic control unit, as well as chassis electric components such as power windows, wipers, etc. In this paper, a low-cost diagnostic method for MOSFET faults in a zero-voltage-switching dc-dc converter is proposed. The proposed method utilizes the dc-link current patterns as the signatures of faults of MOSFETs. A presignal processing circuit consists of a peak detector and an integrator circuit. The ratio of peak-to-integral values, which is similar to the crest factor, is useful for diagnosis.
Keywords
crest factor; dc-dc converter; fault diagnosis; MOSFET; NEURAL-NETWORK; VOLTAGE; SYSTEMS; DRIVE
URI
https://oasis.postech.ac.kr/handle/2014.oak/22880
DOI
10.1109/TIE.2007.910627
ISSN
0278-0046
Article Type
Article
Citation
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, vol. 55, no. 3, page. 1491 - 1494, 2008-03
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남광희NAM, KWANG HEE
Dept of Electrical Enginrg
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