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

  • 제27권4호
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  • Pages.325-331
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  • 2022
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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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LCC 공진형 컨버터 기반의 고효율 커패시터 충전기 설계기법

Design Method of High Efficiency Capacitor Charger Based on LCC Resonant Converter

  • Jeong, Song-Chan (Compressor & Business Team, Samsung Electronics Co., Ltd.) ;
  • Song, Seung-Ho (Smart Electrical & Signaling Division, Korea Railroad Research Institute (KRRI)) ;
  • Choi, Min-Kyu (Dept. of Energy Systems Engineering, Chung-Ang University) ;
  • Ryoo, Hong-Je (Dept. of Energy Systems Engineering, Chung-Ang University)
  • 투고 : 2022.01.10
  • 심사 : 2022.03.08
  • 발행 : 2022.08.20
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초록

This study proposes a design method that minimizes a conduction loss of LCC resonant converter under rated condition. Through a simplified analysis of the waveform of the resonant current, the power transfer section and RMS value of the resonant current was analyzed mathematically and graphically. Based on this analysis, the design method that minimizes the RMS value of the resonant current is proposed. To demonstrate this method, this study designed a 7.5 kW (100 V, 75 A) capacitor charger based on LCC resonant converter and the design parameters were chosen according to the process of the design method. Then, the capacitor charger was implemented. An experiment was conducted to measure efficiency while satisfying design specifications under rated conditions. This design method was verified to be effective by achieving 97.7% maximum efficiency and design specifications under rated conditions.

키워드

과제정보

본 연구는 2020년도 중소벤처기업부의 기술개발사업 지원(S2862711)과 2020년도 정부 (과학기술정보통신부)의 재원으로 한국연구재단의 지원(No.NRF2020R1A2C2099663)을 받아 수행된 연구과제입니다.

참고문헌

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