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

  • 제28권8호
  • /
  • Pages.75-81
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  • 2014
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  • 1229-4691(pISSN)
  • /
  • 2287-5034(eISSN)
한국조명전기설비학회 (The Korean Institute of IIIuminating and Electrical Installation Engineers)
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무정전 결상 보상장치에 관한 연구

A Study on the Uninterruptible Power Open Phase Compensation Device

  • 송영주 (동신대학교 소방행정학과) ;
  • 오진택 (한양대학교 공학대학원 전기공학과, (주)대명기술단) ;
  • 김나운 (나은에너지) ;
  • 신혜영 (홍익대학교 일반대학원 전기공학과)
  • 투고 : 2014.04.24
  • 심사 : 2014.06.29
  • 발행 : 2014.08.31
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초록

It has been widely accepted that open phase may separate one of the power lines from power supply which is mainly caused by fuse melting, malfunction for source circuit breaker, contact failure, and disconnection under normal operating conditions, and is considered a kind of failure mode during disconnection of neutral wires as well. When open phase occurs, unequal voltage between phase might happen in the unbalanced load connected each phase, and further, depending on conditions of load, malfunction by providing low voltage. Moreover, load could be burned or overheated with overvoltage, which, in turn, can be a contributor to starting fires. Accordingly, in order to clearly overcome these problems, the current study aims to introduce the theory of uninterruptible power open phase compensation device, meaning that unbalanced power automatically restores balanced power and provides continuously the power supply without blackout, and verify it through simulation and experiments.

키워드

참고문헌

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