常规太阳能电池低倍聚光条件下的特性研究与应用  

Characteristic Research and Application of Conventional Solar Cells Under Low Concentration Conditions

作　　者：李琦[1] 辛恩承[1] 徐睿[2] 袁海文[1] 刘颖异[1] 吕建勋[1] 孙丁永 

机构地区：[1]北京航空航天大学自动化科学与电气工程学院,北京市海淀区100191 [2]北京长城航空测控技术研究所,北京市大兴区100176

出　　处：《智能电网》2016年第7期669-673,共5页Smart Grid

基　　金：国家自然科学基金项目(61273165)~~

摘　　要：为了更好地实现光伏发电效率的最大化,在对常规单晶硅光伏电池光伏特性研究的基础上,研制带有冷却系统并且聚光倍数可调的光伏发电系统,以探究聚光光伏电池输出功率与聚光比之间的关系。通过理论推导和实验验证,得到当聚光倍数在1~50倍变化范围内的变化关系：在室内温度一定的情况下,存在一个聚光比极限,在未达到聚光比极限时,光伏电池输出功率随着聚光比的增加而提高,当达到聚光比极限后,输出功率随着聚光比的增大而减小。原因是随着聚光比的增加,光伏电池的温度急剧增加,影响输出功率。因此,在设计聚光系统时要增加有效的散热系统,以此提高光伏系统输出能力。In order to maximize the efficiency of photovoltaic power generation, and based on the study of photovoltaic characteristics of conventional monocrystalline silicon solar photovoltaic cell, we developed a photovoltaic power generation system with cooling system and adjustable concentration ratio to explore the relationship between the output power and the concentration ratio of concentrator photovoltaic cells. Through theoretical deduction and experimental verification, the relationship when the concentration ratio is in the range of 1~50 times is obtained, which in the case of constant indoor temperature, there is a concentration ratio limit. When the concentration ratio limit is not reached, the output power of photovoltaic cells increases with the increase of the concentration ratio. When the concentration ratio limit is reached, the output power decreases with the increase of the concentration ratio. That is because with the increase of the concentration ratio, the temperature of the photovoltaic cell increases dramatically, which influences the output power. Therefore, the effective heat dissipating system should be added in the design of the concentrator system to improve the output power of photovoltaic system.

关 键 词：光伏电池 聚光比 输出功率 

分 类 号：TM914.4[电气工程—电力电子与电力传动]