The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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High Efficiency Two-Phase Interleaved Buck Converter with Coupled Inductor Design

커플드 인덕터를 적용한 고효율 2상 인터리브드 벅 컨버터 설계

  • Kang, Hyunji (Division of Electrical Engineering, Konkuk University) ;
  • Kim, Jinwoo (Division of Electrical Engineering, Konkuk University) ;
  • Lee, Sungmin (Division of Electrical Engineering, Konkuk University) ;
  • Cho, Younghoon (Division of Electrical Engineering, Konkuk University)
  • Received : 2020.01.31
  • Accepted : 2020.03.18
  • Published : 2020.10.20
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Abstract

This study presents the design of an 18 kW two-phase interleaved buck converter that uses a coupled inductor for an electric vehicle rapid charger. The designs of a two-phase coupled inductor for current ripple and physical size reduction and a two-phase interleaved buck converter based on silicon carbide metal - oxide - semiconductor field-effect transistor for high efficiency were described in detail. The operating principle of the two-phase interleaved buck converter was analyzed, and the coupled inductor was investigated using a magnetized equivalent circuit. Simulation and experiments were conducted to verify the validity of the proposed two-phase interleaved buck converter, and the theoretical design method and experimental results were confirmed.

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References

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