高倍聚光光伏模组中三结太阳电池沿光轴方向光电性能与优化

连榕海; 梁齐兵; 舒碧芬; 范畴; 吴小龙; 郭银; 汪婧; 杨晴川

doi:10.7498/aps.65.148801

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摘要

目前, 在高倍聚光光伏模组设计中, 由于对菲涅耳透镜聚光后各波段的光强分布及其非均匀特性缺乏研究和认识, 通常认为在菲涅耳透镜的聚光焦平面处多结太阳电池输出功率最大, 本文通过光线跟踪模拟的方法, 计算并分析菲涅耳透镜聚光下不同波段的光照能量分布和非均匀特性. 同时, 结合三结太阳电池电路网络模型, 研究在高倍聚光光伏模组中, 沿光轴方向不同位置处三结太阳电池的发电性能. 结果表明: 模组输出功率最高位置在焦平面沿光轴方向上下两侧的位置, 优化后模组输出功率比常规设计提高20% 以上. 该模拟结果得到了实验结果的验证.

关键词:

作者及机构信息

1.
中山大学工学院, 太阳能系统研究所, 广州 510006

通信作者: 舒碧芬, shubifen@163.com

基金项目: 广东省自然科学基金(批准号:2014A030311050)和广东省重大科技专项(批准号:2013A011402005)资助的课题.

参考文献

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[12]	Steiner M, Philipps S P, Hermle M, Bett A W, Dimroth F 2011 Prog. Photovoltaics 19 73
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施引文献

[1]	Green M A, Emery K, Hishikawa Y, Warta W, Dunlop E D 2015 Prog. Photovoltaics 23 1
[2]	Baig H, Heasman K C, Mallick T K 2012 Renew. Sust. Energy Rev. 16 5890
[3]	Helmers H, Schachtner M, Bett A W 2013 Sol. Energy Mater. Sol. Cells 116 144
[4]	Zhang W, Chen C, Jia R, Sun Y, Xing Z, Jin Z, Liu X Y, Liu X W 2015 Chin. Phys. B 24 108801
[5]	Eduardo F F, Florencia A 2015 Energy Convers. Manage. 103 1031
[6]	Chen F X, Wang L S, Xu W Y 2013 Chin. Phys. B 22 045202
[7]	Zubi G, Bernal-Agustn J L, Fracastoro G 2009 Renew. Sust. Energy Rev. 13 2645
[8]	Chen N F, Bai Y M 2007 Physics 36 862 (in Chinese) [陈诺夫, 白一鸣 2007 物理 36 862]
[9]	Yang G H, Wei M, Chen B Z, Dai M C, Guo L M, Wang Z Y 2013 J. Appl. Opt. 34 898 (in Chinese) [杨光辉, 卫明, 陈丙振, 代明崇, 郭丽敏, 王智勇 2013 应用光学 34 898]
[10]	Languy F, Fleury K, Lenaerts C, Loicq J, Regaert D, Thibert T, Habraken S 2011 Opt. Express 19 A280
[11]	Marc S, Armin B, Alexander D, Frank D, Tobias D, Matt M, Thorsten H, Gerald S, Maike W, Andreas W B 2015 Prog. Photovoltaics 23 1323
[12]	Steiner M, Philipps S P, Hermle M, Bett A W, Dimroth F 2011 Prog. Photovoltaics 19 73
[13]	Steiner M, Guter W, Peharz G, Philipps S P, Dimroth F, Bett A W 2012 Prog. Photovoltaics 20 274
[14]	Segev G, Mittelman G, Kribus A 2012 Sol. Energy Mater. Sol. Cells 98 57
[15]	Rodrigo P, Fernndez E F, Almonacid F, Prez-Higueras P J 2013 Renew. Sust. Energy Rev. 26 752
[16]	Yi S G, Zhang W H, Ai B, Song J W, Shen H 2014 Chin. Phys. B 23 028801
[17]	Jia X J, Ai B, Xu X X, Yang J M, Deng Y J, Shen H 2014 Acta Phys. Sin 63 068801 (in Chinese) [贾晓洁, 艾斌, 许欣翔, 杨江海, 邓幼俊, 沈辉 2014 物理学报 63 068801]
[18]	Liang Q B, Shu B F, Sun L J, Zhang Q Z, Chen M B 2014 Acta Phys. Sin 63 168801 (in Chinese) [梁齐兵, 舒碧芬, 孙丽娟, 张奇淄, 陈明彪 2014 物理学报 63 168801]
[19]	Ota Y, Nishioka K 2012 Sol. Energy 86 476

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高倍聚光光伏模组中三结太阳电池沿光轴方向光电性能与优化

1. 中山大学工学院, 太阳能系统研究所, 广州 510006

通信作者: 舒碧芬, shubifen@163.com

基金项目:

广东省自然科学基金(批准号:2014A030311050)和广东省重大科技专项(批准号:2013A011402005)资助的课题.

收稿日期: 2016-03-28

修回日期: 2016-04-10

刊出日期: 2016-07-20

摘要: 目前, 在高倍聚光光伏模组设计中, 由于对菲涅耳透镜聚光后各波段的光强分布及其非均匀特性缺乏研究和认识, 通常认为在菲涅耳透镜的聚光焦平面处多结太阳电池输出功率最大, 本文通过光线跟踪模拟的方法, 计算并分析菲涅耳透镜聚光下不同波段的光照能量分布和非均匀特性. 同时, 结合三结太阳电池电路网络模型, 研究在高倍聚光光伏模组中, 沿光轴方向不同位置处三结太阳电池的发电性能. 结果表明: 模组输出功率最高位置在焦平面沿光轴方向上下两侧的位置, 优化后模组输出功率比常规设计提高20% 以上. 该模拟结果得到了实验结果的验证.

关键词:

Performance and optimization research of triple-junction solar cell along the optical axis direction on \text{the HCPV module}

1.
Institute for Solar Energy System, School of Engineering, Sun Yet-Sen University, Guangzhou 510006, China

Fund Project:

Project supported by the Natural Science Foundation of Guangdong Province, China (Grant No. 2014A030311050) and the Major Science and Technology Special Project of Guangdong Province, China (Grant No. 2013A011402005).

Received Date: 28 March 2016

Accepted Date: 10 April 2016

Published Online: 20 July 2016

Abstract: High concentrating photovoltaic (HCPV) technology plays a more and more important role in solar power generation due to its extremely high efficiency. However, the efficiency of the HCPV module can be reduced by many factors. Especially, there are not enough researches and knowledge on the light intensity distribution and non-uniform illumination of different wavelengths of light concentrated by Fresnel lens. It is generally considered that the maximum power of multi-junction solar cell is achieved when the cell is placed on the focal plane of Fresnel lens. But it is proved to be incorrect by our research. When light beams of different wavelengths go through the Fresnel lens, their light spot distributions on the optical axis are not the same as those when they have different refractive indexes in Fresnel lens. At the same time, the triple-junction solar cell consists of three sub-cells which absorb light beams of different wavelengths respectively. Therefore, the performance of triple-junction cells would be influenced by the light distribution along the optical axis, this is exactly what we want to study in this work. The method of simulating the light tracing is used to calculate and analyze the light intensity distribution and non-uniform characteristics of different wavelengths of light concentrated by Fresnel lens. Combined with them from the circuit network model of a triple-junction solar cell, the electrical performances of triple-junction solar cell at different positions along the optical axis are studied. It is found from the simulation that the performance of cell does not reach the best state when cell is placed on the focal plane. The power of cell on the focal plane reaches only 0.41 W while the maximum point arrives at 0.69 W. The high non-uniformity of light on cell surface when cell is placed on the focal plane causes the decline of power. And an outdoor HCPV testing system with the ability to change the distance between Fresnel lens and the cell is conducted. The experimental results and the simulation results match well, therefore our simulation approach is verified. It shows that the module achieves the maximum power on either side of the focal plane, and the output power can increase more than 20% after optimization. It is a result after equilibrium between light intensity and uniformity on cell surface.

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