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논문 기본 정보

자료유형
학술대회자료
저자정보
Khairy Sayed (Sohag University) Keiki Morimoto (Daihen Corporation) Soon-Kurl Kwon (경남대학교) Katsumi Nishida (Ube National College of Technology) Mutsuo Nakaoka (경남대학교)
저널정보
전력전자학회 ICPE(ISPE)논문집 ICPE 2011-ECCE Asia
발행연도
2011.5
수록면
44 - 51 (8page)

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This paper presents a new circuit topology of active edge resonant snubbers assisted half-bridge soft switching PWM inverter type dc-dc high power converter for DC bus feeding power plants. The proposed dc-dc power converter is composed of typical voltage source-fed halfbridge high frequency PWM inverter with a high frequency planar transformer link in addition to input DC busline side power semiconductor switching devices for PWM control scheme and parallel capacitive lossless snubbers. The operating principle of the new DC-DC converter treated here is described by using switching mode equivalent circuits, together with its unique features. All the active power switches in the half-bridge arms and input DC buslines can achieve ZCS turn-on and ZVS turn-off commutation transitions. The total turn-off switching losses of the power switches can be significantly reduced. As a result, a high switching frequency IGBTs can be actually selected in the frequency range of 60 ㎑ under principle of soft switching. The performance evaluations of the experimental setup are illustrated practically. The effectiveness of this new converter topology is proved for low voltage and large current dc-dc power supplies as DC bus feeding from a practical point of view.

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Abstract
1. INTRODUCTION
2. NEW SOFT SWITCHING DC-DC CONVERTER
3. PRINCIPLE OF OPERATION
5. CONCLUSIONS
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