基于影响因素区域聚类的光伏组件灰尘沉积及其应用研究

STUDYING ON REGION CLUSTERING AND APPLICATION OF PHOTOVOLTAIC MODULE DUST DEPOSITION BASED ON ITS IMPACT FACTORS

从灰尘沉积影响因素的区域差异性分析入手,提出基于影响因素区域聚类和计算流体动力学相结合的灰尘沉积仿真试验研究方法。首先,选取对灰尘沉积影响较大的风速、相对湿度、温度和灰尘浓度4个环境因素对中国大陆进行区域聚类;其次,按区域类别设定灰尘沉积影响条件,将试验设计与Fluent软件仿真分析相结合,研究光伏组件的安装倾角和安装高度与灰尘沉积率的关系;最后通过灰尘沉积对光伏组件发电量的实际值和预测值的比较,验证方法的准确性和有效性,并将结果应用于优化安装参数。研究成果可应用于分区域类别的灰尘沉积的预测和光伏组件安装参数的优化。

Based on the regional differences of factors impacting dust deposition,a method was proposed for simulating dust deposition which associating the regional clustering with computational fluid dynamics. Firstly,the four environmental factors,namely wind speed,relative humidity,temperature and dust concentration,which have great influence on dust deposition were selected to conduct regional clustering in China's Mainland. Secondly,the influence conditions of dust deposition were set according to the regional category,and the experimental design was combined with Fluent software simulation analysis to study the relationship of installation inclination with installation height of PV module and dust deposition rate. Finally,the accuracy and effectiveness of the method was verified by comparing the effect of dust deposition on the actual and predicted values of PV module power generation,and the results can be applied to optimize installation parameters at the same time. The research results could contribute to the prediction of dust deposition in different regions and the optimization of installation parameters of PV module.