能量均匀分布的菲涅耳聚光系统的设计
|
摘要
传统菲涅尔透镜的聚光光斑辐照度分布不均,其根本原因在于透镜自身的结构设计。因会聚在接收面上的光线是复色光,所以存在一定色散。当色散范围超出太阳能电池的半径后,光斑中心亮边缘相对较暗,中间部位的辐照度均匀性较差。对此,通过改变透镜的设计方法来改善焦平面辐照度分布。设计中通过改变菲涅尔透镜中间部分的楔齿角度以及引入色散因子补偿光斑的不均匀度,提高整体的辐照均匀性,从而提高光伏电池的光电转换效率。
The irradiance of traditional Fresnel lens focusing spot is not uniform,it is due to its structural design.Since the light that converges on the receiving surface is chromatic,there is some dispersion. When the dispersion range exceeds the radius of the solar cell,the irradiance uniformity in the middle of the focal spot of rotating symmetric Fresnel lens is poor,and the center of the spot is bright and the edge is relatively dark. In response to this,the focal plane irradiance distribution is improved by changing the design method of lens. In the design,by changing the angle of the wedge teeth in the middle part of Fresnel lens and introducing dispersion factors to compensate the non-uniformity of the spots,the overall irradiation uniformity is improved,so as to improve the photoelectric conversion efficiency of photovoltaic cells.
The irradiance of traditional Fresnel lens focusing spot is not uniform,it is due to its structural design.Since the light that converges on the receiving surface is chromatic,there is some dispersion. When the dispersion range exceeds the radius of the solar cell,the irradiance uniformity in the middle of the focal spot of rotating symmetric Fresnel lens is poor,and the center of the spot is bright and the edge is relatively dark. In response to this,the focal plane irradiance distribution is improved by changing the design method of lens. In the design,by changing the angle of the wedge teeth in the middle part of Fresnel lens and introducing dispersion factors to compensate the non-uniformity of the spots,the overall irradiation uniformity is improved,so as to improve the photoelectric conversion efficiency of photovoltaic cells.
引文
[1] HEYLAL Mashaal,DANIEL Feuermann,AND JEFFREY M. GORDON. Aplanatic Fresnel optics[J]. OPTICS EXPRESS. 2017,25(8):A274-A282.
[2] SUNTAK Park,BONGJE Park,SAEKWANG Nam,SUNGRYUL Yun,SEUNG Koo park,SEONGCHEOL Mun,JEONG Mook lim,YEONGHWA Ryu,SEOK Ho song,AND KI-UK Kyung. Electrically tunable binary phase Fresnel lens based on a dielectric elastomer actuator[J]. OPTICS EXPRESS. 2017,25(20):23801-23808.
[3] GUIDO Vallerotto,MARTA Victoria,STEPHEN Askins,REBECA Herrero,CéSAR Domínguez,IGNACIO Antón,AND GABRIEL Sala. Design and modeling of a cost-effective achromatic Fresnel lens for concentrating photovoltaics[J]. OPTICS EXPRESS. 2016,24(18):1245-1256.
[4]赵会富.基于非成像原理的菲涅耳光伏聚光系统的研究[D].长春:中国科学院研究生院(长春光学精密机械与物理研究所). 2012.
[5]荆雷.新型Fresnel光伏聚光镜的设计研究[D].长春:中国科学院研究生院(长春光学精密机械与物理研究所),2012.
[6]罗春华,张贺,李艳红.像面照度均匀的环带式菲涅耳透镜设计[J].应用光学,2018,39(1):7-11.
[7]荆雷,王尧,赵会富,等.实现均匀照度光伏聚光镜设计[J].光学学报,2013,34(2):0208001-1-0208001-6.
[8]李望,徐熙平,宋贺伦,等.分布式焦点法线聚焦菲涅耳聚光器设计及性能分析[J].红外与激光工程,2010,39(4):721-726.
[9]陈明彪,舒碧芬,梁齐兵等.菲涅耳透镜热变形对CPV聚光系统性能影响的数值研究[J].应用光学,2016,37(2):256-261.
[10] EUGENE A. KATZ,JEFFREY M. GORDON,DANIEL Feuermann. Effects of ultra-high flux and intensity distribution in multi-junction solar cells[J]. Progress in Photovoltaics:Research and Applications. 2006,14(4):297-303.
[11] RYU K,RHEE J. G,PARK K. M,KIM J. Concept and design of modular Fresnel lenses for concentration solar PV system[J]. Solar Energy,2006,80(12):1580-1587.
[12] DANIEL Vázquez-Moliní,ANTONIOálvarez FernándezBalbuena,EUSEBIO Bernabeu,et al. New concentrator multifocal Fresnel lens for improved uniformity:design and characterization[C]. SPIE,2009,7407:7407011.
[13] M.Victoria,C. Domínguez,I. Antón,et al. Comparative analysis of different secondary optical elements for aspheric primary lenses[J]. Optics Express,2009,17(8):6487-6492.
[2] SUNTAK Park,BONGJE Park,SAEKWANG Nam,SUNGRYUL Yun,SEUNG Koo park,SEONGCHEOL Mun,JEONG Mook lim,YEONGHWA Ryu,SEOK Ho song,AND KI-UK Kyung. Electrically tunable binary phase Fresnel lens based on a dielectric elastomer actuator[J]. OPTICS EXPRESS. 2017,25(20):23801-23808.
[3] GUIDO Vallerotto,MARTA Victoria,STEPHEN Askins,REBECA Herrero,CéSAR Domínguez,IGNACIO Antón,AND GABRIEL Sala. Design and modeling of a cost-effective achromatic Fresnel lens for concentrating photovoltaics[J]. OPTICS EXPRESS. 2016,24(18):1245-1256.
[4]赵会富.基于非成像原理的菲涅耳光伏聚光系统的研究[D].长春:中国科学院研究生院(长春光学精密机械与物理研究所). 2012.
[5]荆雷.新型Fresnel光伏聚光镜的设计研究[D].长春:中国科学院研究生院(长春光学精密机械与物理研究所),2012.
[6]罗春华,张贺,李艳红.像面照度均匀的环带式菲涅耳透镜设计[J].应用光学,2018,39(1):7-11.
[7]荆雷,王尧,赵会富,等.实现均匀照度光伏聚光镜设计[J].光学学报,2013,34(2):0208001-1-0208001-6.
[8]李望,徐熙平,宋贺伦,等.分布式焦点法线聚焦菲涅耳聚光器设计及性能分析[J].红外与激光工程,2010,39(4):721-726.
[9]陈明彪,舒碧芬,梁齐兵等.菲涅耳透镜热变形对CPV聚光系统性能影响的数值研究[J].应用光学,2016,37(2):256-261.
[10] EUGENE A. KATZ,JEFFREY M. GORDON,DANIEL Feuermann. Effects of ultra-high flux and intensity distribution in multi-junction solar cells[J]. Progress in Photovoltaics:Research and Applications. 2006,14(4):297-303.
[11] RYU K,RHEE J. G,PARK K. M,KIM J. Concept and design of modular Fresnel lenses for concentration solar PV system[J]. Solar Energy,2006,80(12):1580-1587.
[12] DANIEL Vázquez-Moliní,ANTONIOálvarez FernándezBalbuena,EUSEBIO Bernabeu,et al. New concentrator multifocal Fresnel lens for improved uniformity:design and characterization[C]. SPIE,2009,7407:7407011.
[13] M.Victoria,C. Domínguez,I. Antón,et al. Comparative analysis of different secondary optical elements for aspheric primary lenses[J]. Optics Express,2009,17(8):6487-6492.