• 제목/요약/키워드: Jo Cheol-Je

검색결과 93건 처리시간 0.032초

플라잉 커패시터 멀티레벨 인버터 및 컨버터를 위한 스너버 회로 (A Snubber Circuit for Flying Capacitor Multilevel Inverter and Converter)

  • 이민수;성현제;김인동;노의철;조철제
    • 대한전기학회논문지:전기기기및에너지변환시스템부문B
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    • 제50권9호
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    • pp.459-466
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    • 2001

  • This paper proposes a snubber circuit for flying capacitor multilevel inverter and converter. The proposed snubber circuit makes use of Undeland snubber as basic snubber unit. It has such an advantage of Undeland snubber used in the two-level inverter. Compared with conventional RCD/RLD snubber for multileve1 inverter and converter, the proposed snubber keeps such good features as fewer number of components, reduction of voltage stress of main switching devices due to low overvoltage, and improved efficiency of system due to low loss snubber. In this paper, the proposed snubber is applied to three-level flying capacitor inverter and this feature is demonstrated by computer simulation and experimental result.

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나노선에서 자구벽 운동의 확률적 특성

  • 김준연;이재철;제숭근;김갑진;조영진;이장원;서순애;신경호;이현우;최석봉
    • 한국자기학회:학술대회 개요집
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    • 한국자기학회 2010년도 임시총회 및 하계학술연구발표회
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    • pp.75-76
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    • 2010

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