中国太阳总辐射的日照类估算模型

Sunshine-based model for estimating global solar radiation in China

对Angstr m-Prescott型日总太阳辐射月均值估算公式进行了修正,根据国内69个气象台站的太阳辐射和日照资料对修正公式中的系数进行了拟合,给出了适合国内不同地区使用的统一公式,经过误差分析,所得到的统一估算公式可满足实际工程应用的要求;并利用得到的公式对国内太阳能辐射资源的分布进行了分析.本文的研究结果为不同地区合理利用太阳能提供理论依据.

The Angstroem-Prescott model for estimating monthly averaged daily global solar radiation was modified in this study. A general sunshine-based model was obtained by using solar radiation and sunshine duration data of 69 meteorological stations to regress the coefficients in the modified model. The model has been assessed on the basis of statistical error tests. Results show that the model can be used in engineering practice with adequate accuracy. The distribution of solar energy resource in China was also analyzed by using the model. The study in this paper can provide theoretic foundation for utilization of solar energy resource in China.