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

The Korean Institute of Power Electronics (전력전자학회)
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A Novel SLLC Series Resonant Converter for The Boost DC/DC Converter

SLLC 직렬공진컨버터 적용 승압형 DC/DC 컨버터

  • 김은수 (전주대 전기전자정보통신공학부) ;
  • 강성인 (전주대학교 전기전자공학과) ;
  • 정봉근 (전주대학교 전기전자공학과) ;
  • 차인수 (동신대 수소에너지학과) ;
  • 윤정필 (동신대 수소에너지학과)
  • Published : 2007.02.20
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Abstract

Recently, the high frequency link boost DC/DC converter has been used widely for PCS (Power Conditioning System) because of the requirements of small size and low cost. However, the high frequency link boost DC/DC converters applied the conventional voltage-fed converter and current-fed converter have some problems like high conduction losses and high surge voltage due to high circulating current and leakage inductance, respectively. To improve these problems, a novel secondary LLC (called SLLC) series resonant converter is proposed in this paper and its theoretical analysis, its operating waveforms, simulation and experimental results for a boost DC/DC converter using SLLC series resonant topology verifies the proposed topology. 800W experimental prototype is tested.

최근 소형, 경량화 및 저가격화를 위해 절연형 고주파링크 승압 DC/DC 컨버터가 PCS (Power Conditioning System)에 많이 적용되고 있다. 하지만, 기존 전압형 컨버터 또는 전류형 컨버터가 적용된 고주파 링크 승압컨버터는 순환전류에 따른 도통손실과 변압기 누설인덕턴스에 따른 서지전압에 의해 여러 문제점을 내포하고 있다. 이들 문제들을 개선하기위해 새로운 2차측 LLC 직렬공진컨버터를 제안했고, 이에 대한 이론적 해석과 동작파형 및 시뮬레이션을 통해 800W급 시제품을 제작하여 실험결과에 대해 서술하였다.

Keywords

References

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