밸리-필 정류기의 전류 THD 개선

국문 초록 (Abstract)

본 연구는 밸리-필 정류기를 이용한 전류 THD 개선 방법을 제시한다. 제안된 회로는 밸리-필 정류기와 부스팅 인덕터틀 결합한 구조를 가지며, AC/DC 변환과 PFC를 동시에 수행한다. PWM 스위칭에 따른 부스팅 효과로 입력 전류를 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.

다국어 초록 (Multilingual Abstract)

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 presented to verify the validity of the proposed method.

목차 (Table of Contents)

• 요약
• Abstract
• 1. 서론
• 2. 밸리-필 정류기 개선
• 3. 실험 및 고찰
• 4. 결론
• References
• 저자소개

참고문헌 (Reference)

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2 Keith Billings, "Switch-mode Power Supply Handbook, second edition, McGraw-Hill"

3 P. Parto, "Passive PFC for fly-back converters" 1999

4 "IEC 61000-3-2-am1 (2001-8) Amendment 1: “Electromagnetic compatibility (EMC) Part 3-2: Limit- Limit of harmonic current emissions (equipment input current ≤16A per phase)”, IEC"

5 L. H Dixon, "High power factor pre-regulator for off-line power supplies" 1988

6 J. Spangler, "Electronic fluorescent ballast using a power factor correction techniques for loads greater than 300 watts" 339-393, 1991

7 C.A.Canesin, "A unity power factor multiple isolated outputs switching mode power supply using a single switch, IAS'91"

8 Yong-sik Youn, "A unity power factor electronic ballast for fluorescent lamp having improved valley fill and valley boost converter” PEPEC'97"

9 C.Qiao, "A topology survey of single-stage power factor corrector with a boost type input-current-shaper" 460-467, 2000