高精度太阳位置算法及在太阳能发电中的应用  

High Precision Computation for Sun Position and Its Application in Solar Power Generation

作　　者：马健[1] 向平[1] 

机构地区：[1]西北工业大学机电学院,陕西西安710072

出　　处：《水电能源科学》2008年第2期201-204,共4页Water Resources and Power

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.

关 键 词：太阳能 太阳赤经 太阳赤纬 水平角 高度角 

分 类 号：TM615[电气工程—电力系统及自动化] TH112[机械工程—机械设计及理论]