不同模拟环境下高效HJT光伏组件的可靠性研究  

RESEARCH ON RELIABILITY OF EFFICIENT HJT PV MODULES UNDER DIFFERENT SIMULATION ENVIRONMENTS

作　　者：郭毅 黄国平 赵桂香 扬川苏 张中建 周旭 Guo Yi;Huang Guoping;Zhao Guixiang;Yang Chuansu;Zhang Zhongjian;Zhou Xu(CECEP Solar Energy Co.,Ltd.,Beijing 100000,China;CECEP Solar Energy Technology(Zhenjiang)Co.,Ltd.,Zhenjiang 212132,China)

机构地区：[1]中节能太阳能股份有限公司,北京100000 [2]中节能太阳能科技(镇江)有限公司,镇江212132

出　　处：《太阳能》2024年第11期76-83,共8页Solar Energy

基　　金：江苏省碳达峰与碳中和项目(BE2022006)。

摘　　要：随着光伏发电技术的进步和太阳电池结构的创新,太阳电池的光电转换效率得到了显著提高,光伏组件的输出功率也随之提高。目前,n型光伏组件因具有较高的光电转换效率,已逐渐成为市场主流。对采用乙烯-醋酸乙烯共聚物(EVA)封装胶膜和高透光玻璃封装的异质结(HJT)光伏组件在偏压、湿热、风/雪荷载、紫外线照射、干热环境下的可靠性进行了系统研究。将HJT光伏组件样品放入不同的模拟环境室中,对其分别进行电势诱导衰减(PID)测试、湿热(DH)测试、机械荷载测试、紫外(UV)测试、热循环(TC)测试这一系列可靠性测试,分析了HJT光伏组件正面和背面输出功率的衰减情况及其外观情况。研究结果表明:在分别进行PID测试、DH测试、机械荷载测试、UV测试和TC测试后,HJT光伏组件正面和背面的输出功率损耗均较小,损耗率最高值仅为1.21%,这意味着HJT光伏组件在不同环境中都表现出了优异的可靠性。研究结果可为未来高性能HJT光伏组件的结构设计和新材料开发等方面提供指导。With the advancement of PV power generation technology and innovation in solar cell structures,the photoelectric conversion efficiency of solar cells has been significantly improved,and the output power of PV modules has also increased accordingly.At present,n-type PV modules have gradually become the mainstream in the market due to their high photoelectric conversion efficiency.This paper systematically studies the reliability of HJT PV modules encapsulated with EVA film and high transparency glass under the environment of bias voltage,humid heat,wind/snow load,ultraviolet irradiation,and dry heat.The HJT PV module samples are placed in different simulated environmental chambers and subjected to a series of reliability tests including PID testing,DH testing,mechanical load testing,UV testing,and TC testing.The output power attenuation on the front side and back side of the HJT PV module and its appearance are analyzed.The research results show that after conducting PID testing,DH testing,mechanical load testing,UV testing,and TC testing separately,the output power loss of the front side and back side of HJT PV modules is relatively small,with the highest loss rate of only 1.21%.This means that HJT PV modules have shown excellent reliability in different environments.The research results can provide guidance for the structural design and new material development of high-performance n-type HJT PV modules in the future.

关 键 词：HJT太阳电池 HJT光伏组件 电性能 输出功率衰减 可靠性 

分 类 号：TM914.41[电气工程—电力电子与电力传动]