Optimized White Laminate and Redirecting Film as Back Reflectors for High-Efficiency Monofacial and Bifacial Photovoltaic Modules

被引：1

作者：

Tao, Wusong ^{[1
,2
,3
]}

Wang, Yuanhan ^{[4
]}

Wang, Long ^{[5
]}

Wang, Luchuang ^{[2
,3
]}

Dai, Jian ^{[2
,3
]}

Li, Tao ^{[5
]}

Jin, Hao ^{[2
,3
]}

Du, Ying ^{[4
]}

Zhang, Zheng ^{[1
]}

机构：

[1] Zhejiang Univ Technol, Coll Mech Engn, Hangzhou 310023, Peoples R China

[2] Jinko Solar Haininng Co Ltd, Zhejiang 314416, Peoples R China

[3] Jinko Solar Co Ltd, Shangrao 334100, Jiangxi, Peoples R China

[4] Zhejiang Univ Technol, Coll Sci, Hangzhou 310023, Peoples R China

[5] Xiangbang Co Ltd, Hangzhou 314416, Zhejiang, Peoples R China

来源：

ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY | 2023年 / 12卷 / 07期

基金：

中国国家自然科学基金;

关键词：

photovoltaic module; back reflector; finite element method; theoretical optimization; light trapping; SOLAR-CELLS; PAINT;

D O I：

10.1149/2162-8777/ace5d7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, we have presented the analysis and optimization of white EVA, white backsheet and redirecting film as back reflector (BR) options applied to the commercial half cell (HC) photovoltaic (PV) modules. White EVA and white backsheet are diffusively reflecting to enhance efficiency on monofacial modules and redirecting film is a structured film applied in the areas between the cells/strings reflecting incoming light at specific angles to the cell surface, which is beneficial for bifacial modules. The influence of BR designs on the optoelectronic performance of PV modules is studied theoretically and experimentally. The combination of white EVA and white backsheet is found to be optically more efficient because of improved light reflecting and scattering, and by applying an optimized transparent/white EVA with an thickness of 0.23/0.22 mm, the maximal electric power of 574.3 W (efficiency of 22.23%) could be obtained. The bifacial module with redirecting film generates about 1.7%& SIM;2.1% more current/power from front side with varying cell/string spaces, but the reduced bifaciality factors of approximate 77.6%& SIM;77.5% are observed.

引用

页数：9

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