摘要
在主动式跟踪太阳能发电系统中,要求精确计算太阳位置以实现跟踪并提高发电效率。根据JeanMeeus《天文算法》计算天体的方法给出了计算太阳位置的具体方法,得出太阳位置的累计误差不超过±0.000 3°,完全满足太阳跟踪的需要。应用此算法计算了太阳赤经和赤纬,并对结果进行了比较。太阳能发电应用实例表明,该方法计算精度高,误差小,易编程。
In the driving-type track system for solar electrical power generation,calculating the solar position to realize the track in order to improve efficiency of the electricity generation is requested. Regarding open-loop control solar energy tracking system, solar position computational accuracy is especially important. This report described the algorithm written in a book by Jean Meeus in 1998 is effective for one thousand years from now. , with uncertainties for 0.003°. At last in the paper, we compute solar declination and solar right ascension based on this algorithm and compare the result with the given data. The results show high accuracy, small error and easy programming.
出处
《水电能源科学》
2008年第2期201-204,共4页
Water Resources and Power
关键词
太阳能
太阳赤经
太阳赤纬
水平角
高度角
solar energy
solar right ascension
solar declination
azimuth angle
zenith angle
