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日照强度和内部电阻对太阳能电池光伏性能的影响
引用本文:钟志有,汪浩,顾锦华.日照强度和内部电阻对太阳能电池光伏性能的影响[J].中南民族大学学报(自然科学版),2012,31(1):61-65,79.
作者姓名:钟志有  汪浩  顾锦华
作者单位:1. 中南民族大学电子信息工程学院,武汉,430074
2. 中南民族大学计算与实验中心,武汉,430074
基金项目:湖北省自然科学基金资助项目(2011CDB418);中南民族大学学术团队基金资助项目(XTZ09003);中央高校基本科研业务费专项资金资助项目(CZZ11001)
摘    要:在分析太阳能电池等效直流电路的基础上,利用电流-电压特性的函数关系式,建立了太阳能电池的仿真模型,研究了日照强度和内部电阻对电池伏安特性和光伏性能(如短路电流、开路电压、填充因子、输出功率和光电转换效率)的影响.研究结果表明:日照强度和内部串联电阻不仅明显影响了太阳能电池的伏安特性、短路电流和开路电压,而且也明显影响了太阳能电池的输出功率、填充因子和光电转换效率,同时太阳能电池的输出特性具有明显的非线性特征,并且存在一个最大的输出功率点和一个最佳的负载电阻值.

关 键 词:太阳能电池  光照强度  内部电阻  光伏性能

Effect of Illumination Intensity and Internal Resistance on Photovoltaic Performance of Solar Cells
Zhong Zhiyou,Wang Hao,Gu Jinhua.Effect of Illumination Intensity and Internal Resistance on Photovoltaic Performance of Solar Cells[J].Journal of South-Central Univ for,2012,31(1):61-65,79.
Authors:Zhong Zhiyou  Wang Hao  Gu Jinhua
Institution:1 College of Electronic Information Engineering,South-Central University for Nationalities,Wuhan 430074,China; 2 Center of Computing & Experimenting,South-Central University for Nationalities,Wuhan 430074,China)
Abstract:Based on the analysis of the direct-current equivalent circuit of solar cells,the simulation model of solar cells is established by means of the mathematical function formula of current-voltage under Matlab environment.The effects of solar illumination intensity and internal resistance on the current-voltage characteristics and photovoltaic performance such as short-circuit current,open-circuit voltage,fill factor,output power and energy conversion efficiency were studied.The results demonstrate that the current-voltage characteristics and photovoltaic performance of solar cells are subjected to the illumination intensity and internal series resistance.For the output power curves of solar cells,each curve is nonlinear and possesses a maximum power point and an optimal load resistance.
Keywords:solar cells  illumination intensity  internal resistance  photovoltaic performance
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