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Proceedings Paper

Stationary SMS lenses for concentrating photovoltaics
Author(s): Panagiotis Kotsidas; Eleni Chatzi; Vijay Modi
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Paper Abstract

This paper presents a novel approach regarding the design of stationary, non imaging, refractive lenses with high acceptance angles. A lens lies on a stationary aperture and as the sun moves throughout the day, the concentrated focal spot is tracked by a moving solar cell. The purpose of this work is to replace the 2-axis tracking of the sun with internal motion of the miniaturized solar cell inside the module. We show families of linear lenses with wide acceptance angles 60. and 30. achieving moderate concentrations of 10 - 30 suns. The lens is designed with a variation of the simultaneous multiple surface (SMS) technique which is combined with a genetic algorithm to optimize the free variables of the problem.

Paper Details

Date Published: 18 August 2010
PDF: 9 pages
Proc. SPIE 7785, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VII, 77850C (18 August 2010); doi: 10.1117/12.863073
Show Author Affiliations
Panagiotis Kotsidas, Columbia Univ. (United States)
Eleni Chatzi, ETH Zurich (United States)
Vijay Modi, Columbia Univ. (United States)


Published in SPIE Proceedings Vol. 7785:
Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VII
Roland Winston; Jeffrey M. Gordon, Editor(s)

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