塔式太阳能热发电镜场中余弦效率仿真研究  

Research of cosine efficiency stimulation on the heliostats field of solar tower power plant

作　　者：潘磊[1] 李丽娟[1] 丁婷婷[2] 

机构地区：[1]南京工业大学自动化与电气工程学院,江苏南京211816 [2]南京师范大学电气与自动化工程学院,江苏南京210042

出　　处：《可再生能源》2013年第2期1-5,共5页Renewable Energy Resources

基　　金：国家自然科学基金项目(61203072);江苏省高校自然科学基金项目(09KJB510003)

摘　　要：参考eSolar塔式发电站中的矩形定日镜场,通过参数设计得到密集的轴对称交错排列布置方案;建立了余弦效率的数学模型,对一天中不同时刻的太阳入射角变化趋势进行了仿真,得出位于接收塔南北区域余弦效率状况;对矩形定日镜场的余弦效率分布做了进一步研究。仿真结果验证了太阳入射角的变化趋势,并得出塔的高度对余弦效率的影响。First, referring to the rectangular heliostat field of the eSolar tower power plant, an arrangement of dense axial symmetry staggered distribution through parameters design was gotten. Then, a mathematical model of cosine efficiency was established, and the variation tendency of solar incidence angle at different time in the daytime was simulated, the result of cosine efficiency in the area of north and south field was obtained. Finally, the cosine efficiency distribution of rectangular heliostat field has been used to research further. Simulation results validate the trend of solar incidence angle, and the influence of tower＇s height on cosine efficiency.

关 键 词：太阳能热发电 定日镜场 余弦损失 入射角 

分 类 号：TK513[动力工程及工程热物理—热能工程] TM615[电气工程—电力系统及自动化]