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논문 기본 정보

자료유형
학술대회자료
저자정보
Yue Zhang (Nanjing University of Aeronautics and Astronautics) Zhiliang Zhang (Nanjing University of Aeronautics and Astronautics) Gang Yang (Jiangsu Electric Power Company Nanjing Power Supply Company)
저널정보
전력전자학회 ICPE(ISPE)논문집 ICPE 2015-ECCE Asia
발행연도
2015.6
수록면
2,826 - 2,831 (6page)

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초록· 키워드

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Boundary Conduction Mode (BCM) and Discontinuous Conduction Mode (DCM) control strategies are widely used for the photovoltaic micro-inverter. For the interleaved flyback micro-inverter, BCM and DCM control strategies are investigated concentrating on the loss analysis under different load condition. The dominant losses with heavy load include the conduction loss of the MOSFETs and diodes, and the core loss and copper loss of the transformer, while the dominant losses with light load include the driving loss, turn-off loss of the MOSFETs and the transformer core loss. Based on the loss analysis, a new Multi-mode control strategy combing the two-phase DCM, one-phase DCM and phase skipping mode control is proposed to improve the efficiency in wide load range without increasing the cost or complexity of the design by reducing the dominant losses depending on the load current. A distributed system prototype with two micro-inverters in parallel has been built and tested. The experimental results verified the effectiveness of the proposed method.

목차

Abstract
I. INTRODUCTION
II. SYSTEM STRUCTURE AND ANALYSIS
III. SIMULATION RESULTS AND EXPERIMENTAL REAULTS
IV. CONCLUSIONS
REFERENCES

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