Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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Reduction of DC-Link Voltage Ripple of Three-phase AC/DC Converter for Uninterruptible Power Supply by Applying Fuel Cell

연료전지를 적용한 무정전전원장치용 3상 AC/DC 컨버터의 DC-Link 전압 리플 저감

  • 박진호 (성균관대학교 메카트로닉스공학협동과정) ;
  • 김경민 (LIG넥스원(주)구미연구소) ;
  • 이정효 (성균관대학교 대학원 전자전기컴퓨터공학과) ;
  • 원충연 (성균관대학교 정보통신공학부)
  • Received : 2010.01.12
  • Accepted : 2010.04.05
  • Published : 2010.06.30
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Abstract

Conventional UPS(Uninterruptible Power Supply) using batteries for assisting the source is limited by the large volume and the life-time of battery. Moreover, voltage variation caused by the sudden load variation brings the problems on UPS system output. In this paper, the battery using fuel cell which is environment-friendly alternative energy is connected on AC/DC converter for UPS to compensate the sudden load variation energy and make the stable power.

기존의 무정전전원장치(UPS: Uninterruptible Power Supply)는 배터리를 보조전원으로 사용함으로써 큰 부피와 수명에 제한을 받게 될 뿐만 아니라, 급격한 부하변동에 따른 배터리 전압의 변동으로 UPS 시스템 출력에 문제점을 야기한다. 본 논문에서는 보조전원으로 쓰이는 기존의 배터리 대신에 친환경 대체 에너지원인 연료전지를 무정전전원장치용 3상 AC/DC 컨버터에 적용하여 급격한 부하 변동 시 에너지를 보상하고 안정된 출력을 갖도록 하였다.

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References

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