基于可控电流源的太阳电池模型参数测试方法  

Test Method of Solar Cell Model Parameters Based on Controlled Current Source

作　　者：张渊博[1] 韩培德[1] 卓国文[2] 

机构地区：[1]中国科学院半导体研究所集成光电子学国家重点实验室,北京100083 [2]中国科学院大学电子电气与通信工程学院,北京100049

出　　处：《半导体技术》2015年第9期699-705,共7页Semiconductor Technology

基　　金：国家自然科学基金资助项目(61275040;60976046)

摘　　要：太阳电池等效模型参数测试是太阳电池生产应用与光伏研究的必备环节,针对传统太阳电池测试系统不但成本高,而且无法测试交流模型参数,提出了一种基于可控电流源的太阳电池等效模型参数测试方法,并成功搭建微型测试系统。实验结果表明,基于该方法搭建的微型测试系统不但可以精确测量太阳电池的直流模型参数(并联电阻Rsh,串联电阻Rs,开路电压Voc,短路电流Isc,填充因子FF,最大功率Pmax,转换效率η),而且可以测量电池的交流模型参数(寄生结电容Cj),同时还可以用于判断电池组件的内部结构。该系统测试相对误差小于4%,实验数据表明了该系统在太阳电池光电特性研究中的科学性与可靠性。The test of solar cell model parameters is an essential process in the cell production and application and photovoltaic research. But due to the high cost,the traditional solar cell test system can not effectively measure the AC（ alternating-current） model parameters of solar cells. To solve this problem,a test method of solar cell equivalent model parameters based on the controlled current source was proposed,and the related micro test system was built. The experimental results show that based on this method,the DC（ direct-current） model parameters of the solar cell can be measured precisely,such as shunt-resistance Rsh,series-resistor Rs,open-circuit-voltage Voc,short-circuit-current Isc,fill-factor FF, maximum-power-point Pmaxand energy-conversion-efficiency η, and the AC model parameters（ parasitic-capacitance Cj） of solar cells can be measured. Moreover,the system can be used in judging the internal structure of photovoltaic modules. The relative error of this system is less than 4%. The experimental data indicate the scientificity and reliability of this system in the research of optoelectronic properties of solar cells.

关 键 词：太阳电池 可控电流源 模型参数 奈奎斯特图 测试系统 

分 类 号：TM914.4[电气工程—电力电子与电力传动]