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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2015.6
- 수록면
- 2,737 - 2,743 (7page)
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초록· 키워드
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A typical photovoltaic (PV) grid-connection power system is usually consisted of multi-stage converters to perform multiple functions simultaneously. In order to simplify system configuration, reduce cost, and improve conversion efficiency, this paper proposes to adopt two-switch buck-boost (TSBB) dc-dc converters, and then develops families of buck-boost typed inverters via the connection with an H-bridge unfolding circuit with linecommuted operation. The proposed inverters have both step-up and step-down functions so that they are suitable for the applications with wide voltage-variation range. Depending on the conditions of dc input-voltage and ac output-voltage, the proposed circuits can work functionally as either buck-typed or boost-typed inverter. Due to operating with buck or boost principle, partial energy can be directly delivered to output to improve efficiency. Besides, since only one power switch operates with high-frequency, switching losses can be reduced significantly. Finally, one of the proposed TSBB inverters, named buck-cascaded buck-boost (BuCBB) inverter, is then implemented accordingly to generate 110 V<SUB>rms</SUB> / 60 Hz output voltage. Experimental results have verified the validity of theoretical predictions and the feasibility of proposed inverters.
목차
Abstract
I. INTRODUCTION
II. TOPOLOGIES OF TSBB INVERTERS
III. CIRCUIT CONFIGURATION AND OPERATION PRINCIPLE
IV. ANALYSIS AND COMPARISON OF CONDUCTION LOSSES
V. EXPERIMENTAL RESULTS
VI. CONCLUSION
REFERENCES
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