品质因子与饱和电流对太阳电池并联的影响  

Effect of quality factor and saturation current for solar cells in parallel

作　　者：易施光[1,2] 张文杰[1] 罗志荣[1] 陈乐[1] 沈辉[2] YI Shi-guang;ZHANG Wen-jie;LUO Zhi-rong;CHEN Le;SHEN Hui(Guangxi Universities Key Laboratory of Complex System Optimization and Big Data Processing, College of Physical Science and Technology Engineering, Yulin Normal University, Yulin Guangxi 537000, China;Institute for Solar Energy Systems9 Sun Yat-sen University, Guangzhou Guangdong 510275, China)

机构地区：[1]玉林师范学院物理科学与工程技术学院,广西高校复杂系统优化与大数据处理重点实验室,广西玉林537000 [2]中山大学太阳能系统研究所,广东广州510275

出　　处：《电源技术》2019年第8期1363-1365,1369,共4页Chinese Journal of Power Sources

基　　金：国家自然科学基金资助项目(51561031);博士科研启动基金(G20150001);玉林师范学院2018年高等教育本科教学工程项目(2018XJJG10)

摘　　要：采用太阳电池单二极管等效电路模型,构建太阳电池并联电路,并根据基尔霍夫定律,导出太阳电池并联电路的方程组。通过数值法得到分别以二极管品质因子和反向饱和电流为自变量时,方程组的数值解,同时数值解的曲线图形详细分析和讨论这两种情况下各个电流变化特性,并且给出了相应的物理解释。分析表明品质因子和反向饱和电流对太阳电池并联内部电流分布影响很大。研究结果有助于探究太阳电池和系统的电流损失机理。The one-diode equivalent circuit model of solar cell employed, and the circuit for solar cells in parallel constructed, the equations of the solar cell parallel circuit were derived on the basis of Kirchhoff law. By numerical method, the numerical solution of the equations was obtained when the diode quality factor and the reverse saturation current were regarded as independent variables, respectively. At the same time, the characteristics of each current for these two cases were analyzed and discussed by using the curve graph of the numerical solution, and the simple corresponding physical explanation for the modeling results were provided. The results of analysis show that the quality factor and reverse saturation current have different impacts on the internal currents of solar cells connection in parallel. The results of the study help to explore the current loss mechanismof solar cells and systems.

关 键 词：太阳电池 品质因子 饱和电流 内部电流 

分 类 号：TM914[电气工程—电力电子与电力传动]