摘要
提出了一种新型多平面镜线性组合太阳能聚光器的聚光光伏系统,应用几何分析法计算影响聚光器光学效率的几何参数因子。采用最小设计间距和余弦效率的概念,得出了不同子镜面尺寸和不同子镜面数量与焦距长短的相互影响规律,得到了最小设计间距值和最优的余弦效率。利用Trace Pro软件建立了聚光器的仿真模型,并对不同几何参数下焦平面上的能流分布特性进行了模拟研究。制作了一套450倍聚光的多平面镜线性组合太阳能聚光器,并进行初步测试,证实聚光焦平面上的能流分布均匀性可达到预期设计效果,为点聚光式太阳能聚光系统的设计和优化提供了参考。
A new multi-plane mirrors linear combination solar concentrator is proposed for concentrating photovoltaic system. Based on the new concentrator, the geometric concentrator parameters that affect the optical performance are studied using analytic geometry method. The concepts of the minimum design spacing and cosine efficiency are proposed. The interactional condition between focal length and different sizes of sub-mirror, as well as between focal length and different numbers of sub-mirror investigated, and the optimization of the minimum design spacing and cosine efficiency are given. A model developed by TracePro software is used to obtain the flux distribution of the focal plane at different simulation parameters. An experimental prototype concentrator with 450× suns is fabricated and preliminary tested, the operation shows that the effect is obvious and the expected results is arrived. The simulation results can present a useful reference for design and optimization of the solar concentrator.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2016年第4期236-245,共10页
Acta Optica Sinica
基金
国家863计划(2013AA050403)
国家自然科学基金(51466017)
云南省科技计划(2014FD015)
中国博士后科学基金(2014M562349)
关键词
光学设计
碟式聚光器
多平面镜
最小设计间距
余弦效率
能流分布
optical design
dish concentrator
multi-plane mirror
minimum design spacing
cosine efficiency
fluxdistribution
