山西不同地区太阳辐射量及最佳倾角分析

Ananlysis on Solar Radiation and Optimum Tilt Angle in Different Areas of Shanxi Province

太阳辐射资料是太阳能利用中重要科学依据之一。采用太阳辐射量气象学模型,研究了山西不同地区水平面上太阳辐射量,并与山西各市太阳辐射实测值分别进行回归分析,得到太阳辐射量理论公式修正系数及经验公式。经过检验,经验公式的计算结果相关性显著,相关性达95%以上。然后结合Hay模型分析了山西不同地区太阳能光伏板的最佳倾度,得出大多数地区最佳倾度小于当地纬度,并实现了对太阳辐射量及最佳倾度计算的软件开发与研究,为山西地区太阳能工程计算提供理论依据,并为相近地区太阳辐射量计算提供参考。

The data of solar radiation was an important scientific basis for the use of solar energy.The modified coefficient of theoretical formula and empirical formula of solar radiation through measuring the solar radiation of horizontal surface in different regions of Shanxi province were obtained.Regression analysis between the measured and theoretical values using the solar radiation meteorological model was done.The results of empirical formula had a significant correlation of 95%.The best inclination of the solar photovoltaic panels in different cities of Shanxi according to Hay＇s model was analysed,and it should be less than the local latitude in most regions.Moreover,the software to calculate the solar radiation and the best inclination of the solar photovoltaic panels was developed.The results could not only provide the theoretical foundation for solar engineering calculation in Shanxi province but also offer the reference for solar radiation calculation in the adjacent districts.