摘要
把用激光沿细栅方向切割的多晶硅太阳电池片封装成组件,然后对组件的不同连接方式进行系统发电功率测试。结果显示:对划片电池封装的组件组装为系统,其发电功率可以得到显著提高,每个60片电池的组件效率可以提升3.5 W以上,系统相对功率提高2.15%。系统的电学特性是影响功率变化的重要因素,分析了太阳电池划片前后的电学参数,得到:划片与否对系统的阻值影响不大;对系统功率提升影响最大的是太阳电池电流的变化,划片后电池的电流变为原来的1/2,降低了系统的电学损失;阻值越大的位置,划片后对功率的影响也越大,具体来说,焊带和电缆等的选择对太阳电池效率的影响较大。
Modules are encapsulated after solar cells being cut and power generations are testeo according to different plant connections. The result shows that average power generation of every module with 60 pcs cells in cell-cutting-plant gains 3.5 W more than no-cell-cutting-plant. Electrical characteristics of the plant are very important for power generation. Electrical parameters before and after cutting are analyzed with electrical engineering principles, and the conclusions are as followed： series resistance of cell- cutting-plant is litter different from no-cell-cutting-plant; cell current impacts the power generation because the current is a half after cutting reducing the electrical losses of the plant; according to the basic principles of heat loss, the greater the resistance, the greater the power loss, so the design of ribbon and cable will impact solar cell efficiency greatly.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2014年第1期148-152,162,共6页
Journal of Synthetic Crystals
基金
国家高技术研究与发展计划(863计划)(2012AA050303)
关键词
系统
切割
电流
串联电阻
plant
cutting
current
series resistor
