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                                                         电力与能源
                  228                                                                          2024 年 4 月

                                                                                       DOI:10.11973/dlyny202402018



                             考虑组件衰减及安装角度的光伏功率


                                           预测及评估方法研究



                              周    强 ,张晓忠 ,陈久益 ,沈                   炜 ,张       翔 ,张宝利 ,
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                                               董昕昕 ,张          婕 ,薛明华        2
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                                       (1. 国家电投集团江苏新能源有限公司,江苏 盐城,224005;
                                             2. 上海明华电力科技有限公司,上海 200090)
                    摘   要:针对分布式光伏存在多种安装角度,不同安装角度组件性能存在差异以及异常情况难以评估的问题,
                    提出了一种考虑组件衰减及安装角度的光伏功率预测及评估方法。利用某分布式屋顶光伏电站组件角度为
                    南向倾角 5°的实际运行数据,结合直散分离法和 Hay 法将已知水平总辐射强度转化为光伏倾斜面总辐射强
                    度,并考虑组件出力与环境因素相关性以及组件衰减,评估了多种模型算法适用性,并选取最优模型对组件角
                    度为北向倾角 5°的光伏组件进行功率预测,最高预测精度可达 94.94%。这为安装角度复杂多样的光伏场站
                    组件性能评估提供了一种解决方案,可有效降低场站对数据运维的难度,提高不同安装条件下光伏组件性能
                    评估的准确性。
                    关键词:分布式光伏;安装角度;功率预测;组件衰减
                    作者简介:周      强(1978—),男,工程师,从事电力系统高压与绝缘工作。
                    中图分类号:TM615    文献标志码:A    文章编号:2095-1256(2024)02-0228-05
                Photovoltaic Power Prediction and Evaluation Methods Considering Module Attenuation
                                                  and Installation Angles



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                         ZHOU Qiang ,ZHANG Xiaozhong ,CHEN Jiuyi ,SHEN Wei ,ZHANG Xiang ,
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                                   ZHANG Baoli , DONG Xinxin , ZHANG Jie , XUE Minghua   2
                    (1.Jiangsu New Energy Co.,Ltd.,State Power Investment Group,Yancheng 224005,Jiangsu Province,China;





                              2.Shanghai Minghua Electric Power Technology Co.,Ltd.,Shanghai 200090,China)




                    Abstract:In  view  of  the  problems  that  there  are  many  kinds  of  installation  angles  for  distributed  photovoltaic

                    (PV),and it is difficult to evaluate module performance differences and abnormal conditions under different instal⁃
                    lation angles,a photovoltaic power prediction and evaluation method is proposed considering module attenuation

                    and  different  installation  angles.  Based  on  the  actual  operating  data  of  a  distributed  rooftop  PV  power  station
                    whose module angle is 5°southward inclination,the known horizontal total irradiance is converted into the total ir⁃


                    radiance of the PV inclined plane by direct dispersion separation method and Hay method,and the applicability of
                    various model algorithms is evaluated considering the correlation between component output and environmental
                    factors as well as module attenuation. The optimal model is selected to predict the power of PV modules with the
                    angle of 5°north inclination,and the highest prediction accuracy can reach 94.94%. This research provides a solu⁃

                    tion for the performance evaluation of PV modules with complex installation angles,which can effectively reduce

                    the difficulty of data operation and maintenance at the station and improve the performance evaluation accuracy of
                    PV modules under different installation conditions.




                    Key words:distributed photovoltaic power,installation angle,power prediction,module attenuation
                    在“双碳”大背景下,光伏产业已成为发展最                         为迅猛的热门产业之一。安装倾角是影响光伏发
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