光伏阵列最佳倾角计算方法的进展
Advances in Calculation Method of the Optimal Tilted Angle for PV Array in Solar Resource Assessment
中文摘要：
为了提高光伏电站运行效率，增加发电量，需要综合考虑各种因素，计算并确定电站光伏阵列安装的倾角。针对固定角度安装的并网光伏发电系统最佳倾角设计，如果不能直接获取水平面上总辐射量和直接辐射量，则首先需要利用其他气象资料进行水平面上太阳辐射量的气候学计算，然后采用某种辐射模型计算阵列斜面辐射量，进而计算最佳倾角。通过对计算中各个步骤的方法进行分类总结，比较不同方法的优缺点，给出了计算方法适用条件和建议。还比较了国内常用的光伏电站设计辅助软件特点。最后总结了目前最佳倾角计算领域新的研究方向和实际应用中亟待解决的问题等。
中文关键词：
光伏发电，辐射模型，最佳倾角
KeyWords：
photovoltaic power generation, radiation model, the optimal tilted angle
Abstract：
In order to improve the efficiency of photovoltaic (PV) power plant and increase the power generation capacity, it is required to consider various factors for calculating and determining the installation angle of the PV array of power plant. In design of optimal tilted angle of fixed grid connecting solar PV array, if the total radiation and direct radiation on the horizontal plane could not be used directly, the first thing needed to do is calculating the horizontal solar radiation by using other meteorological data in climatology; then to calculate the total solar radiation of inclined plane by using some radiation models; and then calculate the optimal tilted angle. Through the classifying and summarizing each step of the calculation method, we compare the advantages and disadvantages between different methods, tell calculation methods applicable conditions and recommendations. Finally we compare the characteristics of commonly used photovoltaic power plant design software, and discuss the direction of research and urgent problems of practical application in the optimal tilted angle calculation methods.