期刊
PROGRESS IN PHOTOVOLTAICS
卷 -, 期 -, 页码 -出版社
WILEY
DOI: 10.1002/pip.3643
关键词
module interconnection; multijunction solar cells; PV module; Si-based tandem solar cells
资金
- U.S. Department of Energy (Office of Science, Office of Basic Energy Sciences and Energy Efficiency and Renewable Energy, Solar Energy Technology Program) [SETP DE-EE00038266]
- Deutsche Forschungsgemeinschaft [SCHU 3206/1-1]
- German Federal Ministry for Economic Affairs and Climate Action [03EE1056A]
Three-terminal (3T) tandem solar cells require an adapted module integration scheme to explore their full efficiency potential. The connection scheme affects the operation of the subcells and resulting current path. Reverse connection can reduce interconnect losses.
Three-terminal (3T) tandem solar cells require an adapted module integration scheme in order to explore their full efficiency potential. The three terminals allow to extract the power of the top and bottom cell separately. In a cell string, the wide bandgap top cells are interconnected in parallel to multiple bottom cells resulting in a parallel/ series interconnection. This interconnection scheme affects the operation of the subcells, the resulting current path between the subcells, the layout of the cell interconnects, and the system level. Here, we analyze by simulations and experiments the aspects of the module integration of series- and reverse-connected 3T cells with their practical impact on module processes and performance as well as the effect of varying voltage ratios on the string-end losses. If the subcells are connected in series, the module integration requires insulation layers and significantly longer interconnects compared to devices with reverse-connected subcells. Tandem devices with a reverse connection and a voltage ratio between top and bottom cell of 2:1 allow a lean interconnection design and low integration losses. We present an approach for the integration of bypass diodes for the protection against shading effects that allow to minimize string-end and shading losses for a system of modules featuring 3T cells.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据