摘要
基于国际电工委员会(IEC)国际标准分析了引起标准太阳电池量值传递误差的因素及其与国际标准的一致性。随机选取我国市场上销售的6种封装标准太阳电池,测量了它们的温度特性、光谱响应特性和表面反射特性。结果表明:电池的封装结构影响它们的冷却效果及温度的正确测量,从而导致温度和短路电流的不稳定性,其变异系数最高可达0.12%和0.04%。另外,有、无偏置光条件下的光谱响应特性均反映其光电流的光照强度线性特性,这里定义用光谱拟合度来衡量各封装太阳电池的光谱响应特性。采用改变入射角测量短路电流的方法分析了表面光反射对短路电流的影响,利用余弦函数拟合确定了由表面反射光所引起的短路电流的误差可达0.21%。本文的研究成果对光伏行业正确制造、选择和使用标准太阳电池具有指导作用。
This paper focuses on analysis of the origins of measuring transfer errors of standard solar cells and the uncertainty to international photovoltaic standards from the International Electrotechnical Commission （IEC）. Six kinds of commercial packaged PV devices were chosen randomly, and their properties including temperature responsibility, spectral response and surface reflection effect were measuredand evaluated based on the IEC standards, The results demonstrate that the structure of packaged PV device affects its cooling effect and temperature measurement accuracy, so that to leads to the instability of temperature and short-circuit current （Isc）. The variation coefficients are 0.12% for the temperature and 0.04% for the Isc. Moreover, the spectral responses with and without white bias lights all reflect the linearity feature of incident light intensity for the Isc, in which the spectral responses were quantified by defining a spectral mismatch factor. The influence of surface reflection on Isc was analyzed by measuring Isc at different incident angles, and the AIsc caused by the surface reflection was deduced to be up to 0.21% by fitting with a cosine function. The results provide the important guidance for the manufacture, selection and application of the packaged PV devices in photovoltaic industry.
出处
《光学精密工程》
EI
CAS
CSCD
北大核心
2016年第3期491-501,共11页
Optics and Precision Engineering
基金
科技部国际合作重点项目(No.2015DFA60570)
中国科学院国际合作重点项目(No.GJHZ1240)
中国科学院修缮购置专项资助项目
上海市科委国际合作重点项目(No.12160706700)
上海张江国家自主创新示范区专项发展资金重大项目(No.ZJ2015-ZD-001)
上海市重大技术装备研制专项资助项目
关键词
太阳电池
太阳电池测试标准
标准太阳电池
温度稳定性
光谱响应
线性度
表面光反射
solar cell
measurement standard of solar cell
standard solar cell
temperature stability
spectralresponse
linearity
surface reflection
