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논문 기본 정보

자료유형
학술대회자료
저자정보
Van-Dai Bui (Kyungpook National University) Honnyong Cha (Kyungpook National University)
저널정보
전력전자학회 ICPE(ISPE)논문집 ICPE 2023-ECCE Asia
발행연도
2023.5
수록면
2,924 - 2,929 (6page)

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초록· 키워드

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The literature has conducted many studies on the input-parallel output-series (IPOS) converter. To increase the voltage gain, by synthesizing two single IPOS converters, a four-phase input-parallel output-series (4P-IPOS) converter was introduced recently. However, the duty ratio must be greater than 0.5 (i.e., D > 0.5) for the converter to work correctly, so it suffers from duty-ratio limitation. Moreover, there was no study on using a bipolar DC grid or a dual-output configuration. This paper proposed an asymmetrical PWM scheme, which easily implements to solve the duty-ratio limitation of the 4P-IPOS converter. Additionally, the use of a dual-output connection is studied. As a result, the converter not only can work with D < 0.5 and maintains the high voltage gain (i.e.,V<SUB>O</SUB>/V<SUB>in</SUB> =4/1-D), but also achieve outputs voltage balancing (i.e., V<SUB>O1</SUB>=V<SUB>O2</SUB>)as well as currents balancing(i.e., I<SUB>L1</SUB> = I<SUB>L2</SUB>, I<SUB>L3</SUB>= I<SUB>L4</SUB>). An 800-W prototype converter is used in simulation and experimentation to validate the suggested PWM technique.

목차

Ⅰ. INTRODUCTION
Ⅱ. PROPOSED ASYMMETRICAL PWM SCHEME AND OPERATION OF THE CONVERTER
Ⅲ. CHARACTERISTIC OF THE CONVERTER WITH THE PROPOSED METHOD
Ⅳ. SIMULATION AND EXPERIMENTAL RESULTS
Ⅴ. CONCLUSIONS
REFERENCES

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