基于菲涅尔聚光的太阳能砷化镓电池热特性分析  

Thermal properties analysis of Ga As solar cell with Fresnel lens

作　　者：李彦洁[1] 闫素英[1,2] 仲伟浩[1] 雷胜楠 田瑞[1,2] 包俊江[1] 

机构地区：[1]内蒙古工业大学能源与动力工程学院,内蒙古呼和浩特010051 [2]风能太阳能利用技术省部共建教育部重点实验室,内蒙古呼和浩特010051

出　　处：《可再生能源》2015年第8期1191-1195,共5页Renewable Energy Resources

基　　金：风能太阳能利用技术省部共建教育部重点实验室开放基金项目(201405);内蒙古自治区研究生教育创新计划项目(2012)

摘　　要：以菲涅尔三级聚光器和三结砷化镓太阳电池芯片为研究对象,利用Trace Pro模拟菲涅尔高倍聚光条件下电池芯片表面的能流密度分布,并将结果导入ANSYS中作为三结砷化镓太阳电池芯片的边界条件。通过有限元模拟了电池芯片的温度和热流分布,并利用热-结构耦合分析法,得到了电池芯片的热应力分布。结果表明:三级聚光器能有效提高聚焦光斑能量均匀性、增大系统接收角,从而降低热应力,提高光伏系统的整体性能。TracePro was used to simulate heat flow density distribution of a GaAs solar cell with triple p-n junction and triple Fresnel lens. The simulate result was applied as a boundary condition of the triple p-n junction cell model in ANSYS. The finite element was used to analyze the distribution of temperature and heat flow of the cell, and the stress field was gotten by the method of coupling heat and structure. The results show that triple Fresnel lens can effectively improve the uniformity of focal spot energy, increase the system acceptance angle and reduce thermal stress which can improve the performance of PV/T system.

关 键 词：菲涅尔透镜 聚光器 砷化镓电池 聚光均匀性 热特性 

分 类 号：TK515[动力工程及工程热物理—热能工程]