摘要
高倍聚光光伏技术是将垂直入射于菲涅耳透镜上的太阳光聚焦到电池片上,通过光电转换产生电能,但实际应用时,由于跟踪器跟踪精度低、支架受风会抖动等因素存在,无法保证太阳光始终垂直入射于菲涅耳透镜。针对该问题,在菲涅耳透镜和太阳能电池之间增加一个可拆卸的倒置的去掉顶部的棱锥形二次反射镜来提高聚光光伏的接收角,给出了具体的设计实例,并应用Solidworks软件和Tracepro软件对设计实例进行了计算机光学模拟。结果证实:该二次反射镜能很好地提高聚光光伏的接收角,并改善了菲涅耳透镜聚焦光斑的能量均匀性。
Only the direct fraction of the sun irradiation can be used in high concentration photovoltaic technology. There are a number of deficiencies like the low tracking accuracy of tracker, structure vibration by winds and atmospheric scattering in practice, which leads to non vertical incident irradiation to the Fresnel lens. To slove the problem of non vertical incident irradiation to the Fresnel lens, a removable secondary mirror whose shape is a reverse cone with no top is addedbetween the Fresnel lens and solar cells in this paper, to increase the acceptance angle of the solar module. A design example is given, and is analyzed by optical simulation with the software of Solidworks and Tracepro. The conclusion is drawn that the removable secondary mirror increase the acceptance angle and improve the irradiance uniformity of the focus spot.
出处
《红外与激光工程》
EI
CSCD
北大核心
2013年第S02期422-425,共4页
Infrared and Laser Engineering
基金
2009年教育部新世纪优秀人才支持计划(NCET-09-0002)
工业用高功率全光纤激光器的开发(2010ZX04013-052)
科研基地(PXM2011_014204_09_000060)
北京市教委面上项目(KM201110005017)
国家自然科学基金项目(61006040)
北京市教育委员会科技计划重点项目(KZ201010005006)
关键词
菲涅耳透镜
高倍聚光光伏
二次反射镜
光学设计
fresnel lens high concentrating photovoltaic secondary mirror optical design
