该文引入逐时气象要素对分解模型进行修正,针对C.P.R模型,提出一种基于日照时数、温度以及相对湿度的多气象要素修正模型。基于西安2015年10月1日—2017年7月31日观测数据,分析3种天气类型下模型修正前、后的计算误差,结果显示多气象要素修正模型的各项误差指标均低于未修正模型,且对于多云天气的修正效果最明显,平均可达2%。基于多气象要素的C.P.R修正模型考虑了气象及辐射观测数据现状,可为其他地区计算水平面逐时总辐射提供方法借鉴。
Abstract
Meteorological elements were introduced to modify the decomposition model in this paper. A multi-meteorological element-modified model based on sunshine duration, temperature, and relative humidity was proposed for the C.P.R model. Based on the measured data of Xi’an from 2015.10.1-2017.7.31, the errors of the C.P.R model and modified model were compared on three types of weather. The results show that error indicators of the multi-meteorological element modified model are lower than those of the unmodified model, especially for cloudy weather, PRMSE can reduce by 2% on average. The multi-meteorological element-modified C.P.R model, taking the current situation of meteorological and radiation measured data into account, can provide a methodological reference for calculating the hourly global radiationon the horizontal plane for other regions.
关键词
太阳能 /
逐时总辐射 /
C.P.R修正模型 /
天气类型 /
误差分析
Key words
solar energy /
hourly global radiation /
C.P.R modified model /
weather type /
error analysis
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基金
国家自然科学基金重点项目(51838011); 陕西省教育厅服务地方专项科学研究计划(20JC021)