平单轴光伏组件辐照模型优化  

Optimization of solar radiation model for horizontal single-axis photovoltaic modules

作　　者：廖东进[1] 黄志平[1,2] 方晓敏 LIAO Dongjin;HUANG Zhiping;FANG Xiaomin(College of Information Engineering,Quzhou College of Technology,Quzhou Zhejiang 324000,China;National-Local Joint Engineering Laboratory of New Energy Photoelectric Devices,Hebei University,Baoding Hebei 071002,China)

机构地区：[1]衢州职业技术学院信息工程学院,浙江衢州324000 [2]河北大学新能源光电器件国家地方联合工程实验室,河北保定071002

出　　处：《电源技术》2022年第2期190-193,共4页Chinese Journal of Power Sources

基　　金：浙江省公益技术应用研究计划项目(LGG19F040001);浙江省教育厅高校国内访问学者基金(FG2020213)。

摘　　要：为提高东西向平单轴光伏组件接收辐照度,结合赤道坐标系平单轴运行轨迹和避免前后排阴影遮挡分析,搭建了逆跟踪辐照度模型;通过对阴雨天最佳接收辐照度的选取,对平单轴旋转角进行了优化,建立了优化辐照度模型。模拟和实验结果表明,阴雨天时,在占地面积比为0.43的情况下,优化模型较逆跟踪模型的日辐照度可提高8.25%,年太阳辐射量可提高2.24%;为显著提升优化模型的辐射量,同时考虑光伏组件占地面积比,最优占地面积比应为0.3~0.4。Aiming at improving the receiving irradiance for east-west horizontal single-axis photovoltaic module,the backtracking irradiance model was established based on analysis of both horizontal single-axis trajectory in equatorial coordinate system and shadow elimination in tandem modules.The optimal irradiance model was determined by optimizing the rotation angle of the horizontal single-axis and acquiring the best receiving irradiance in rainy days.The simulation and experimental results show that in rainy days,the optimal model can improve the daily irradiance by 8.25%and the annual radiation gain by 2.24%compared with the backtracking model in the case of the floor area ratio of 0.43.Taking into account both excellent radiation gain of the optimized model and module floor area ratio,the optimal floor area ratio is determined between 0.3 and 0.4.

关 键 词：辐照度 单轴 光伏组件 跟踪 增益 

分 类 号：TM615[电气工程—电力系统及自动化]