摘要
利用SMARTS模式计算晴天总辐射,充分考虑海拔高度和大气对太阳辐射的削弱作用,建立基于日照百分率的太阳能资源计算方程。以四川省为例的计算结果表明,该方法不仅物理意义更明确,并且计算误差明显降低;与实测值相比,7个辐射台站年总辐射曝辐量的相对误差低于7%,月总辐射曝辐量中有约67%的相对误差介于[-5%,5%]之间;与初始值采用天文辐射的方法相比,无论是相对误差的量值还是离散程度,均降低一半以上,有效降低了类似峨眉山站的"孤点"的相对误差。
Using SMARTS mode to calculate clear-sky global radiation, adequately considering the weaken effect of the altitude and the atmosphere, a calculation equation on solar energy resource was established based on the percentage of sunshine. The calculating results for Sichuan province show that the calculating method not only has unambiguous physical meaning, but also decreases the error of the calculating result obviously. Compared with observed data, the relative errors of 7 stations for annual global irradiation are less than 7%, and 67% relative error for monthly global irradiation is between [-5%, 5% ]. Compared with the results from extraterrestrial radiation, not only the quantity but also the discreteness of relative error decrease more than a half, and this method decreases the relative error of ＂isolated point＂ effectively, such as Emei Mountain station.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2016年第2期482-488,共7页
Acta Energiae Solaris Sinica
基金
公益性行业(气象)科研专项(GYHY201306048)
关键词
太阳能资源
晴天总辐射
日照百分率
四川省
solar energy resource
clear-sky global radiation
percentage of sunshine
Sichuan province
