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

  • 제22권1호
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  • Pages.87-94
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  • 2008
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  • 1229-4691(pISSN)
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  • 2287-5034(eISSN)
한국조명전기설비학회 (The Korean Institute of IIIuminating and Electrical Installation Engineers)
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밸리-필 정류기의 전류 THD 개선

Current THD Improvement of Valley-Fill Rectifier

  • 발행 : 2008.01.31
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초록

본 연구는 밸리-필 정류기를 이용한 전류 THD 개선 방법을 제시한다. 제안된 회로는 밸리-필 정류기와 부스팅 인덕터를 결합한 구조를 가지며, AC/DC 변환과 PFC를 동시에 수행한다. PWM 스위칭에 따른 부스팅 효과로 입력전류를 제어하여 밸리-필 정류기의 특성을 개선한다. 이 결과는 낮은 전류 THD를 보장한다. 동작 모드와 전류 THD를 분석하고, 최적 부스팅 인덕터를 결정한다. 밸리-필 정류기와 부스팅 인덕터를 채용한 100[W] AC/DC 컨버터를 제작하였고, 시뮬레이션과 실험으로 제안된 방법의 타당성을 검증하였다.

A method for improving current THD of Valley-fill rectifier is proposed in this paper. The proposed topology combines a boosting inductor with Valley-fill rectifier which carry out AC/DC conversion and PFC simultaneously The boosting effect by PWM switching makes low THD current and improve of Valley-fill rectifier. The operation modes and THD of input current are analyzed as applied the boosting inductor, and the optimum value of boosting inductor is determined A 100[W] single-stage converter has been designed and tested. Experimental results are resented to verify the validity of the proposed method.

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참고문헌

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