晴空模型在北方地区的适用性研究——以甘肃、河北部分地区为例

RESEARCH ON APPLICABILITY OF CLEAR-SKY MODELS IN NORTHERN CHINA——TAKING SOME REGIONS IN HEBEI AND GANSU AS EXAMPLES

摘要: 为了研究晴空模型在中国北方地区的适用性，采用北方地区7个站点的逐分钟太阳总辐射数据以及MERRA-2分析数据，选取Reno方法筛选晴空时段，之后选取11个统计量对7个晴空模型的性能进行评估，并采用主成分分析方法对模型进行排名。结果表明：模型综合排名由高到低依次为MAC2、REST2V5、BIRD、INEICHEN、IQBAL-C、sSOLIS、ESRA。Dong MAC2和REST2V5模型计算晴空条件下的太阳辐射准确率较高，在北方地区的适用性较好。

Abstract: In order to study the applicability of clear-sky models in northern China,this study uses 1-minute global horizontal solar irradiance and MERRA-2 reanalysis data from seven stations in Northern China,selects the Reno method to filter clear-sky periods,evaluates the performance of seven clear-sky models by eleven statistics,and adopts the principal component analysis method to rank the models. The results,ranked in descending order（from high to low）are as follows:MAC2,REST2V5,BIRD,INEICHEN,IQBALC,sSOLIS,ESRA. The MAC2 and REST2V5 models have high accuracy in calculating solar radiation in clear sky and have good applicability in northern regions.