摘要
光伏电池板组件的隐形缺陷包括隐裂、碎片、黑斑、阴影等是影响组件发电效率、寿命、安全性的重要因素。为了实现高辐照度下晶硅光伏电池组件隐形缺陷的在线检测,提出了缺陷成像系统的优化方法;包括带通短波红外成像系统组成、双曝光背景抑制、非线性变换图像锐化等。建立了光伏电池板电致或光致发光成像的信号动态范围模型;搭建了基于窄带短波红外InGaAs相机的高辐照度下光伏电池板电致发光成像的实验装置,并对提出的优化方法进行了验证。结果表明,在300W/m~2的辐照度下,本文方法可有效提高光伏电池板隐形缺陷的成像清晰度。
The invisible defects on photovoltaic modules such as cracks,fragments,black spots,and shadings are important to the power efficiency,the lifespan,and the safety of the photovoltaic modules.In order to realize on-site imaging of such defects under high irradiance level,the optimization of the imaging system was proposed,including the band-pass near-infrared imaging system,the double-exposure background-light decrease,and no-linear image sharping.The image dynamic model of the electroluminescence or photoluminescence imaging under high irradiance level was established,and experimental device of the electroluminescence imaging for the silicon photovoltaic modules based on a band-pass InGaAs camera was set up.Experimental results show that the high quality images of the defects on the photovoltaic modules under the irradiance of 300W/m~2 can be obtained by our method.
作者
牛靖凯
翟帅
田欣
魏力中
吴文敏
廖宁放
NIU Jingkai;ZHAI Shuai;TIAN Xin;WEI Lizhong;WU Wenmin;LIAO Ningfang(China Huaneng Clean Energy Research Institute,Beijing 102209,China;China Huaneng Fengdian Energy Company,Inner Mongolia 013650,China;National Laboratory of Color Science and Engineering,School of Optics and Photonics,Beijing Institute of Technology,Beijing 100081,China)
出处
《光学技术》
北大核心
2025年第3期264-268,共5页
Optical Technique
基金
华能集团总部科技项目高辐照度下PL光伏组件缺陷检测装置研制(HNKJ22-H92)。
关键词
光伏电池板
缺陷检测
电致发光成像
光致发光成像
短波红外成像
高辐照度成像
photovoltaic module
defects detecting
electroluminescence imaging
photoluminescence imaging
near infrared imaging
high irradiance imaging
作者简介
牛靖凯(1993-),男,博士研究生,从事直流变换、微网控制、新能源技术等研究。jk_niu@qny.chng.com.cn;通讯作者:廖宁放(1960-),男,教授,博士,从事颜色科学与图像技术研究。liaonf@bit.edu.cn。
