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

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

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 prin...

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Veröffentlicht in:Journal of electrical engineering & technology 2018, Vol.13 (1), p.226-239
Hauptverfasser: Lee, Soon-Ryung, Lee, Jong-Young, Jung, Won-Sang, Won, Il-Kwon, Bae, Joung-Hwan, Won, Chung-Yuen
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container_title Journal of electrical engineering & technology
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creator Lee, Soon-Ryung
Lee, Jong-Young
Jung, Won-Sang
Won, Il-Kwon
Bae, Joung-Hwan
Won, Chung-Yuen
description 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.
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title Design and Control Method of ZVT Interleaved Bidirectional LDC for Mild-Hybrid Electric Vehicle
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