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논문 기본 정보

자료유형
학술저널
저자정보
Jun-Gu Kim (Sungkyunkwan University) Kyu-Dong Kim (Samsung Electro-Mechanics) Yong-Su Noh (Sungkyunkwan University) Yong-Chae Jung (Namseoul University) Chung-Yuen Won (Sungkyunkwan University)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.13 No.4
발행연도
2013.7
수록면
558 - 568 (11page)

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초록· 키워드

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In this paper, a new decoupling technique for a flyback inverter using an active power decoupling circuit with auxiliary winding and a novel switching pattern is proposed. The conventional passive power decoupling method is applied to control Maximum Power Point Tracking (MPPT) efficiently by attenuating double frequency power pulsation on the photovoltaic (PV) side. In this case, decoupling capacitor for a flyback inverter is essentially required large electrolytic capacitor of milli-farads. However using the electrolytic capacitor have problems of bulky size and short life-span. Because this electrolytic capacitor is strongly concerned with the life-span of an AC module system, an active power decoupling circuit to minimize input capacitance is needed. In the proposed topology, auxiliary winding defined as a Ripple port will partially cover difference between a PV power and an AC Power. Since input capacitor and auxiliary capacitor is reduced by Ripple port, it can be replaced by a film capacitor. To perform the operation of charging/discharging decoupling capacitor C<SUB>x</SUB>, a novel switching sequence is also proposed. The proposed topology is verified by design analysis, simulation and experimental results.

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Abstract
I. INTRODUCTION
II. PROPOSED TOPOLOGY
III. MODE ANALYSIS
IV. COMPARISON WITH THE INPUT CAPACITANCE
V. SIMULATION RESULTS
VI. EXPERIMENTAL RESULTS
VII. CONCLUSIONS
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UCI(KEPA) : I410-ECN-0101-2014-500-003213425