摘要
修正了任一方向的平面内太阳辐射计算模型,使之适用于编程计算各种倾角和方位角平面上的太阳辐射。在曲面上进行网格划分,生成若干个小平面,推导出平面法向量与倾角和方位角之间的关系式,逐个计算每个小平面上太阳辐射量,叠加后近似代替整个曲面上的太阳辐射量。运用此方法计算了高空飞艇的薄膜太阳电池上辐射量,并与此薄膜太阳电池在水平投影面内辐射量计算结果进行比较。结果表明,用水平投影面内辐射量代替薄膜太阳电池内辐射量有很大的偏差。因此,在高空飞艇能源系统性能详细分析阶段需要使用曲面内太阳辐射量计算模型,为随后的光电转换与能源系统计算提供准确的太阳辐射数据。
The calculation model of solar radiation on titled surface has revised so as to be suitable for any obliquity and azimuth of a tilted surface. The curved surface has been partitioned divided into many small planes by grid technique, and the relationship between the normal vector, obliquity and azimuth was deduced. In addition, the solar radiation on each plane was calculated and summed up to obtain solar radiation on the entire curving surface. The solar radiation calculation on a thin film solar cell for a high altitude airship was carried out with this method, the result was compared with the solar radiation on the horizontal projection plane of this thin film solar cell. It shows that replacing solar radiation on a horizontal projection surface with solar radiation on the thin film solar cell leads to large deviation. Therefore, it is necessary to use solar radiation calculation model on curving surface in the detailed analysis of energy system of high altitude airships, which will supply accurate data for photovoltaie conversion calculations and the energy system design.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2006年第8期819-823,共5页
Acta Energiae Solaris Sinica
关键词
高空飞艇
太阳电池
太阳辐射
网格
high altitude airships
solar cell
solar radiation
grid
