基于纬度的光伏系统发电量估算方法研究  

Study on method for estimating power generation of photovoltaic systems based on geographical latitude

作　　者：高林朝[1] 左智成 郝庆英[1] 谢毅[1] 赵严初 贾兵[1] 胡国华[1] GAO Linchao;ZUO Zhicheng;HAO Qingying;XIE Yi;ZHAO Yanchu;JIA Bing;HU Guohua(Energy Research Institute Co.,Ltd.,Henan Academy of Sciences,Zhengzhou 450008,China;Henan Vocational College of Art,Zhengzhou 450003,China)

机构地区：[1]河南省科学院能源研究所有限公司,河南郑州450008 [2]河南艺术职业技术学院,河南郑州450003

出　　处：《河南农业大学学报》2019年第4期557-562,共6页Journal of Henan Agricultural University

基　　金：河南省重点科技攻关项目(182102210075;132102310057)

摘　　要：以地理纬度为基本参数,结合光伏系统装机容量和最佳安装倾角,对河南省14个城市不同纬度、不同太阳辐射强度的固定安装倾角的光伏系统太阳能年发电量进行了数值模拟计算,基于计算结果对年均发电量和所处纬度进行了拟合,得到二者的关系式,其年发电量模型估算值与实测值最大相对误差为5.16%,最小相对误差为0.2%,绝对值平均相对误差为1.86%。使用该模型可以估算任意太阳辐射量、环境温度和系统结构下的系统年均发电量,无需知道太阳辐射数据,简便快捷,实用性强。Based on the geographic latitude,and combined with the capacity and optimal arrangement angle of PV modules,the numerical simulation of the annual average power generation was carried out by the photovoltaic systems with fixed optimal dip angle in 14 cities with different latitudes and solar radiation in Henan.Based on the calculation results,the annual average generating capacity and latitude were fitted,and the relationship between them was obtained.The maximum and minimum relative errors between the estimated and measured values of the generating capacity are 5.16%and 0.2%,respectively,and the average relative error of absolute value is 1.86%.Simple,fast and practical,the model can be used to estimate any solar radiation amount,environmental temperature and annual power generation of the system under the system structure without having to know the solar radiation data.

关 键 词：纬度 光伏发电系统 发电量 太阳辐射 估算方法 

分 类 号：TM615[电气工程—电力系统及自动化]