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논문 기본 정보

자료유형
학술대회자료
저자정보
Hafiz Furqan Ahmed (Kyungpook National University) Honnyong Cha (Kyungpook National University) Zeeshan Aleem (Kyungpook National University) Ashraf Ali Khan (Kyungpook National University) Heung-Geun Kim (Kyungpook National University)
저널정보
전력전자학회 ICPE(ISPE)논문집 ICPE 2015-ECCE Asia
발행연도
2015.6
수록면
920 - 926 (7page)

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In this paper, a new type of ac-ac converter is proposed which can operate as traditional non-inverting buck and boost converter or inverting buck-boost converter. The proposed converter is immune from shorting of voltage source even when all switches are turned on simultaneously, and therefore, PWM switching dead-times are eliminated to produce high quality output waveform. Owning to the benefit that only two switches are switching at high frequency, the switching losses are reduced which allow the high frequency operation with reduced passive filter requirements. Compared to the traditional non-inverting buck and boost ac-ac converter which can only step-down or step-up the input voltage respectively, the proposed topology has both step-down and step-up operations with or without voltage inversion. Moreover, while operating as noninverting buck and boost converter, it has lower switch voltage stresses, lower inductor current stress and ripple current than the traditional inverting buck-boost ac-ac converter. A detailed topology analysis is presented followed by experimental results to prove the advantages of the proposed converter.

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Abstract
I. INTRODUCTION
II. PROPOSED AC-AC CONVERTER AND ITS OPERATION
III. EXPERIMENTAL RESULTS
IV. CONCLUSION
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