聚光太阳能光伏模组等效电路模型及参数提取  

EQUIVALENT CIRCUIT MODELING AND PARAMETERS EXTRACTION OF CONCENTRATOR PV MODULE

作　　者：吕辉[1,2] 代金梅 盛飞[1,2] 刘文[1,3] 张金业[1,2] 朱进容[1,2] 官成钢[1,4] 

机构地区：[1]湖北工业大学太阳能高效利用湖北省协同创新中心,武汉430068 [2]湖北工业大学理学院,武汉430068 [3]中国科学技术大学先进技术研究院,合肥230022 [4]武汉凹伟能源科技有限公司,武汉430068

出　　处：《太阳能学报》2015年第4期865-870,共6页Acta Energiae Solaris Sinica

基　　金：太阳能高效利用湖北省协同创新中心开放基金(HBSKFZD2014006);科技型中小企业技术创新基金(13C26214203960)

摘　　要：以单p-n结电池的双二极管模型为基础,借助11个未知参数,建立35片三结电池以电气连接串联而成的聚光光伏模组等效电路模型。以单片聚光三结电池开路电压和短路电流两者的温度系数为限制条件,采用数学迭代法拟合模组在576倍聚光下测量的I-V曲线。从逼近开路电压点、短路电流点、最大功率点等方面讨论模组参数对拟合结果的影响,最终提取出11个参数的最优组合。决定系数R2=0.95,表明拟合结果与实验数据符合度高。研究结果为提取聚光三结太阳电池的性能参数提供了有效方法,也为聚光太阳能光伏模组的相关特性分析奠定了理论基础。Based on the double-diode model of a single p-n junction, equivalent circuit of concentrator PV （CPV） module with 11 unknown parameters was established, which consists of 35 GaInP/GaInAs/Ge triple-junction concentrated solar cells. Constrained with temperature coefficients for open circuit voltage and short circuit current of the triple-junction cell, the measured I-V curve of the module 576X condeser was fitted by mathematical iterations. From three points of open circuit voltage, short circuit current and the maximum power, the impacts on fitted results of the parameters were discussed. All the 11 parameters were extracted and square of the correlation coefficient was 0.95, which verifies a good agreement between measurement and fitting. An effective method for performance analysis of concentrator PV triple-junction solar cells was presented and a theoretical foundation for characteristics of the CPV module was laid.

关 键 词：聚光太阳能光伏模组 双二极管模型 I-V曲线 参数提取 数学迭代 

分 类 号：TK514[动力工程及工程热物理—热能工程]