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

被引：69

作者：

Kim, Sung Young ^{[1
]}

Nam, Kwangbee ^{[1
]}

Song, Hong-Seok ^{[2
]}

Kim, Ho-Gi ^{[2
]}

机构：

[1] POSTECH, Dept Elect Engn, Pohang 790784, South Korea

[2] Hyundai Kia Motor Co, Hybrid Elect Vehicle Dev Div, Whasung Si 445706, South Korea

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2008年 / 55卷 / 03期

关键词：

crest factor; dc-dc converter; fault diagnosis; MOSFET;

D O I：

10.1109/TIE.2007.910627

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

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.

引用

页码：1491 / 1494

页数：4

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