Open Access
27 October 2014 High-integrated spectral splitting solar concentrator with double-light guide layers
Hongcai Ma, Qingyu Meng, Shuyan Xu, Ji-hong Dong, Wei Li
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Abstract
Individual secondary optical components in a spectral splitting solar concentrator utilizing a microlens array require multiple photovoltaic (PV) cells, which leads to the complexity of system alignment and a high cost. In order to improve the integration of the PV cells and thermal management, a spectral splitting concentrator coupled to double-light guide layers has been proposed. Using one-axis tracking, we further investigate the optical performance of the concentrator combined with a cylindrical microlens array with double vertically staggered light guide layers in detail. The results show that this solar concentrator maintains a good acceptance angle of ±2  deg in the east-west direction and an acceptable angle of ±14  deg in the perpendicular direction on both low and high spectrums, achieving a concentration ratio of 10×. Finally, the capability of lateral displacement tracking has been explored for an aperture angle of ±24  deg in this concentrator.
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
Hongcai Ma, Qingyu Meng, Shuyan Xu, Ji-hong Dong, and Wei Li "High-integrated spectral splitting solar concentrator with double-light guide layers," Optical Engineering 53(10), 105102 (27 October 2014). https://doi.org/10.1117/1.OE.53.10.105102
Published: 27 October 2014
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CITATIONS
Cited by 3 scholarly publications.
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KEYWORDS
Solar concentrators

Microlens

Solar cells

Optical tracking

Waveguides

Microlens array

Tolerancing

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