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http://dx.doi.org/10.5370/JEET.2018.13.1.226

Design and Control Method of ZVT Interleaved Bidirectional LDC for Mild-Hybrid Electric Vehicle  

Lee, Soon-Ryung (Dept. of Electrical and Computer Engineering, Sungkyunkwan University)
Lee, Jong-Young (Dept. of Electrical and Computer Engineering, Sungkyunkwan University)
Jung, Won-Sang (Dept. of Electrical and Computer Engineering, Sungkyunkwan University)
Won, Il-Kwon (Dept. of Electrical and Computer Engineering, Sungkyunkwan University)
Bae, Joung-Hwan (Dept. of Electrical and Computer Engineering, Sungkyunkwan University)
Won, Chung-Yuen (Dept. of Electrical and Computer Engineering, Sungkyunkwan University)
Publication Information
Journal of Electrical Engineering and Technology / v.13, no.1, 2018 , pp. 226-239 More about this Journal
Abstract
In this paper, design and control method ZVT Interleaved Bidirectional LDC(IB-LDC) for mild-hybrid electric vehicle is proposed. The IB-LDC is composed of interleaved buck and boost converters employing an auxiliary inductor and auxiliary capacitors to achieve zero-voltage-transition. Operating principle of IB-LDC according to operation mode is introduced and mathematically analyzed in buck and boost mode. Moreover, PFM and phase control are proposed to reduce circulating current for low power range. Passive components design such as main inductor, auxiliary inductor and capacitors is suggested, considering ZVT condition and maximizing efficiency. Furthermore, a 600W prototype of ZVT IB-LDC for MHEVs is built and tested to verify validity.
Keywords
Bi-directional converter; Dual voltage architecture; Mild-hybrid electric vehicle; ZVT;
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Times Cited By KSCI : 1  (Citation Analysis)
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