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

  • 제26권4호
  • /
  • Pages.277-284
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  • 2021
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  • 1229-2214(pISSN)
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  • 2288-6281(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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11kW 5.58kW/L 무(無)전해커패시터 단상/3상 겸용 전기자동차 탑재형 충전기

A 11 kW 5.58 kW/L Electrolytic Capacitor-less EV Charger With Single- and Three-Phase Compatibility

  • Kim, Hyung-Jin (Dept. of Electrical & Information Engineering, Seoul Nat'l University of Science and Technology) ;
  • Park, Jun-Yeong (Dept. of Electrical & Information Engineering, Seoul Nat'l University of Science and Technology) ;
  • Kim, Sun-Ju (Dept. of Electrical & Information Engineering, Seoul Nat'l University of Science and Technology) ;
  • Hakim, Ramadhan Muhammad (Dept. of Electrical & Information Engineering, Seoul Nat'l University of Science and Technology) ;
  • Phuc, Huu Kieu (Dept. of Electrical & Information Engineering, Seoul Nat'l University of Science and Technology) ;
  • Cho, Se-Wan (Dept. of Electrical & Information Engineering, Seoul Nat'l University of Science and Technology)
  • 투고 : 2021.04.01
  • 심사 : 2021.05.04
  • 발행 : 2021.08.20
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초록

A single and three phase-compatible single-stage EV charger without electrolytic capacitor is proposed in this study. DC battery-charging current is inherently guaranteed in the three-phase grid due to three output currents with a phase shift of 120° between each other. The proposed EV charger can provide a DC battery charging current for the single-phase grid through the integrated active power decoupling circuit without using additional switches. The proposed EV charger ensures ZVS turn-on of all switches with wide grid and battery voltage ranges. The 11 kW prototype of the proposed EV charger demonstrates a peak efficiency of 97.01% and a power density of 5.58 kW/L.

키워드

과제정보

이 연구는 서울과학기술대학교 교내연구비의 지원으로 수행되었습니다.

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