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The cells in high concentrated photovoltaic module are usually high efficiency triple-junction solar cells. Due to the non-ideal concentrators, the light intensity distribution on a solar cell is highly non-uniform, so the appropriate increase of the ratio between light spot size and cell area is a method to reduce the influence of non-uniform illumination on the electrical performance of the solar cell. The circuit network model is used to calculate the influences of light spot intensity distribution and size on a triple-junction solar cell. The light spot intensities and sizes, the cell efficiencies, and the temperature distributions of the cell under four design schemes (uniform illumination, non-uniform illumination, maximum cell efficiency, and maximum module efficiency) are compared. The results show that the cell efficiency in the maximum module efficiency design is not the maximum cell efficiency under the standard testing condition. The design to make the cell achieve the maximum efficiency obtains the minimum module efficiency. The design to achieve maximum module efficiency has a smaller size of concentrator, so the cost of the module goes up. The design to achieve the maximum cell efficiency has a bigger size of concentrator and a lowest cell temperature, so the cost of the module will reduce and the reliability will improve. Above all, the requirement of electricity quantity should be fully considered in the module design, in which an appropriate geometric concentration ratio and light spot coverage to solar cells should be chosen.
[1] Green M A, Emery K, Hishikawa Y, Warta W, Dunlop E D 2014 Prog. Photovoltaics 22 1
[2] Chen N F, Bai Y M 2007 Physics 36 862 (in Chinese) [陈诺夫, 白一鸣 2007 物理 36 862]
[3] Baig H, Heasman K C, Mallick T K 2012 Renew. Sust. Energy Rev. 16 5890
[4] Rodrigo P, Fernández E F, Almonacid F, Pérez-Higueras P J 2013 Renew. Sust. Energy Rev. 26 752
[5] Steiner M, Philipps S P, Hermle M, Bett A W, Dimroth F 2011 Prog. Photovoltaics 19 73
[6] Steiner M, Guter W, Peharz G, Philipps S P, Dimroth F, Bett A W 2012 Prog. Photovoltaics 20 274
[7] Garcia I, Algora C, Rey-Stolle I, Galiana B 2008 33rd IEEE Photovoltaic Specialists Conference (New York: IEEE) p1
[8] Domenech-Garret J L 2011 Sol. Energy 85 256
[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] Cui M, Chen N F, Deng J X 2012 Chin. Phys. B 21 034216
[11] Cui M, Chen N F, Deng J X, Liu L Y 2013 Chin. Phys. B 22 084208
[12] Cotal H, Frost J 2010 35th IEEE Photovoltaic Specialists Conference (New York: IEEE) p213
[13] Friedman D J 1996 Conference Record of the Twenty Fifth IEEE Photovoltaic Specialists Conference (New York: IEEE) p89
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[1] Green M A, Emery K, Hishikawa Y, Warta W, Dunlop E D 2014 Prog. Photovoltaics 22 1
[2] Chen N F, Bai Y M 2007 Physics 36 862 (in Chinese) [陈诺夫, 白一鸣 2007 物理 36 862]
[3] Baig H, Heasman K C, Mallick T K 2012 Renew. Sust. Energy Rev. 16 5890
[4] Rodrigo P, Fernández E F, Almonacid F, Pérez-Higueras P J 2013 Renew. Sust. Energy Rev. 26 752
[5] Steiner M, Philipps S P, Hermle M, Bett A W, Dimroth F 2011 Prog. Photovoltaics 19 73
[6] Steiner M, Guter W, Peharz G, Philipps S P, Dimroth F, Bett A W 2012 Prog. Photovoltaics 20 274
[7] Garcia I, Algora C, Rey-Stolle I, Galiana B 2008 33rd IEEE Photovoltaic Specialists Conference (New York: IEEE) p1
[8] Domenech-Garret J L 2011 Sol. Energy 85 256
[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] Cui M, Chen N F, Deng J X 2012 Chin. Phys. B 21 034216
[11] Cui M, Chen N F, Deng J X, Liu L Y 2013 Chin. Phys. B 22 084208
[12] Cotal H, Frost J 2010 35th IEEE Photovoltaic Specialists Conference (New York: IEEE) p213
[13] Friedman D J 1996 Conference Record of the Twenty Fifth IEEE Photovoltaic Specialists Conference (New York: IEEE) p89
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