光伏组件热斑案例失效分析与影响因素研究  

STUDY ON CASE ANALYSIS AND EFFECT FACTORS OF HOT SPOT FAILURE FOR PHOTOVOLTAIC MODULE

作　　者：张臻[1,2] 单立[1] 王磊[1] 吴晋禄 全鹏 姜猛 

机构地区：[1]河海大学机电工程学院,常州213022 [2]中国光伏科学与技术国家重点实验室,常州213030

出　　处：《太阳能学报》2017年第1期271-278,共8页Acta Energiae Solaris Sinica

基　　金：江苏省自然科学基金(BK20151173);中央高校基本科研业务费(2014B19614;2014B15914)

摘　　要：通过调研实际运行光伏电站中光伏组件热斑失效数据,定义典型热斑类别,分析电池间显著温差、电池串失效、玻璃与电池碎裂等不同热斑类型的产生原因与机理。在此基础上选择不同漏电流与缺陷类型的太阳电池,封装成特定组件,实验测试并分析电池漏电流随温度的变化趋势,以及漏电流分布与电池热斑温度的相关性。并设计光伏系统模拟太阳电池失配情况,进行热斑试验,验证热斑对组件电性能输出的影响,并分析最严重热斑产生条件。Based on investigating actual photovohaie power plant hot-spot data, typical hot-spot types, the cause and mechanism of difference in temperature, cell series failure and glass and cell fragmentation, etc. have been defined and analyzed. On the basis of this, solar cells with different leakage current were selected and packaged into specific modules, and analyze the trend between leakage current and temperature and relativity between current distribution and hot-spot temperature. A PV system was designed for simulating mismatch and hot spot testing to verify the effect of energy output of PV module with hot spot issues, and the worst case of hot spot was studied as well.

关 键 词：可靠性 光伏组件 热斑 失配 

分 类 号：TK513.5[动力工程及工程热物理—热能工程]