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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2015.6
- 수록면
- 801 - 808 (8page)
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초록· 키워드
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Most of the large-scale PV power plants (solar farms) are based on central inverters, in which the PV modules are concentrated in few maximum power point trackers and connected to the grid through three phase inverters. Although this topology has typically high efficiency, it has limited performance in terms of capturing all the power available from the PV modules. This paper proposes a cascaded multilevel converter based on solid state transformers (SST) technology, in which multiple high frequency transformers replace the bulky medium-voltage line-frequency function. In the proposed alternative, the converter grid front-end consists of a series connection of Hbridge inverters supplied by independent PV module arrays through solid state transformers. Among the many advantages of the proposed solution, it is important to point out: multiple MPP trackers, reduced size and weight, improved reliability and conversion efficiency and easier maintenance. The proposed SST based converter topology or PV power plants and its main design and control issues is addressed.
목차
Abstract
I. INTRODUCTION
II. PARTIAL SHADING ISSUES
III. CASCADED MULTILEVEL SST TOPOLOGY
IV. TOPOLOGY SIMULATION UNDER UNBALANCED CONDITIONS
V. CONCLUSIONS
REFERENCES
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