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

  • 제24권6호
  • /
  • Pages.438-444
  • /
  • 2019
  • /
  • 1229-2214(pISSN)
  • /
  • 2288-6281(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
권호 표지
DOI QR코드

DOI QR Code

V2G EV 충전기(OBC)를 위한 개선된 고효율 양방향 공진컨버터

Improved High Efficiency Bidirectional Resonant Converter for V2G EV Charger (OBC)

  • Oh, Jae-Sung (Electrical & Electronics Engineering, Jeonju University) ;
  • Kim, Min-Ji (Electrical & Electronics Engineering, Jeonju University) ;
  • Lee, Jun-Hwan (Electrical & Electronics Engineering, Jeonju University) ;
  • Woo, Jung-Won (Electrical & Electronics Engineering, Jeonju University) ;
  • Kim, Eun-Soo (Electrical & Electronics Engineering, Jeonju University) ;
  • Won, Jong-Seob (Mechanical and Automotive Engineering, Jeonju University)
  • 투고 : 2019.07.28
  • 심사 : 2019.10.21
  • 발행 : 2019.12.20
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, bidirectional LLC resonant DC/DC converters with the primary auxiliary windings in transformers of resonant circuits are proposed. Although the resonant capacitors are used on both the primary and secondary sides, regardless of the direction of power flow, the main feature of the proposed converters exhibits high gain characteristics without any mutual coupling between the resonant capacitors. For one of the proposed converters, an investigation of the operating characteristics in each mode has been carried out. A prototype of a 3.3 kW bidirectional LLC resonant converter for interfacing 750 V DC buses has been built and tested to verify the validity and applicability of the proposed converter.

키워드

참고문헌

  1. F. Krismer, J. Biela, and J. W. Kolar, "A comparative evaluation of isolated bi-directional DC/DC Converters with wide input and output voltage range," in IEEE IAS 2005, pp. 599-606, 2005.
  2. P. He and A. Khaligh, "Comprehensive analyses and comparison of 1kW isolated DC-DC converters for bidirectional EV charging systems," IEEE Transactions on Transportation Electrification, Vol. 3, No. 1, pp. 124-156, Mar. 2017.
  3. J. Y. Lee, Y. S. Jeong, and B. M. Han, "A two-stage isolated/bidirectional DC/DC converter with current ripple reduction technique," IEEE Trans. On Industrial Electronics, Vol. 59, No. 1, Jan. 2012.
  4. Z. Liu, B. Li, F. C. Lee, and Q. Li, "Design of CRM AC/DC converter for very high-frequency high-density WBG-based 6.6kW bidirectional on-board battery charger," in IEEE Energy Conversion Congress and Exposition (ECCE), pp. 1-8, 2016.
  5. W. Chen, P. Rong, and Z. Lu, "Snubberless bidirectional DC-DC converter with new CLLC resonant tank featuring minimized switching loss," IEEE Trans. Ind. Electron. Vol. 57, No. 9, pp. 3075-3086, Sep. 2010. https://doi.org/10.1109/TIE.2009.2037099
  6. J. Shao, B. Agrawal, and F. Wei, "SiC MOSFET based high-efficiency bi-directional on-board charger for EVs," in IEEE APEC 2019 Industry Presentation, Mar. 2019.
  7. South Korea patent, "Bidirectional LLC resonant converter," Patent pending 10-2019-0011426, 29, Jan. 2019.