风电机组扫影对于光伏电站发电量的影响分析

Analysis of the Photovoltaic Generation Loss due to Wind Turbine Shading

本文以禹州某风电项目风机点位对其周边光伏(photovoltaic,PV)电站的阴影遮挡影响为例进行详细分析,采用SketchUp软件和天正插件分析风电机组各时段的扫影影响范围及受影响的光伏装机容量,建立了与风机叶轮转速相关的动态阴影遮挡系数计算模型,对典型日各小时的受遮挡装机容量、平均风速、辐射量、温度、遮挡系数等环境变量进行统计和分析,计算得到受风机遮挡影响的光伏电站理论损失电量。为光伏系统在动态阴影遮挡影响下的受损电量量化评估提供了一种可行的思路与分析方法。

This paper takes a photovoltaic(PV)project in Yu Zhou city as an example to take a detailed analysis of the PV generation loss due to wind turbine shading.Use the SketchUp software and TPlugIn to analyze the area and PV capacity affected by wind turbine shading in typical day of each month,build the calculation formula of dynamic shading coefficient related to the rotation speed of wind turbine,count and analyze the following data in time series:PV capacity influenced by shading,the dynamic shading coefficient,average wind speed,area solar irradiation,ambient temperature etc.and calculate the theoretical PV generation loss.This paper provides a feasible idea and analytical method for quantitative evaluation of PV generation loss caused by dynamic shading.