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Energy Express

Energy Express

  • Editor: Christian Seassal
  • Vol. 22, Iss. S4 — Jun. 30, 2014
  • pp: A1153–A1163

9-fold Fresnel–Köhler concentrator with Fresnel lens of variable focal point

João Mendes-Lopes, Pablo Benítez, Pablo Zamora, and Juan C. Miñano  »View Author Affiliations


Optics Express, Vol. 22, Issue S4, pp. A1153-A1163 (2014)
http://dx.doi.org/10.1364/OE.22.0A1153


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Abstract

Non-uniform irradiance patterns over Multi-Junction Cells gives rise to power losses, especially when considering spectral irradiance distributions over different junctions. Thermal effects on Silicone-on-Glass lenses affect spectral irradiance distributions. A new Photovoltaic Concentrator (CPV), formed by nine optical channels, each one with a Köhler configuration, has been designed to overcome these effects at high concentrations for a large acceptance angle. A Fresnel Lens with a Variable Focal Point is proposed to prevent optical crosstalk in multichannel systems. When integrated into the concentrator, improves the acceptance angle. These designs are designed to fulfill the expected requirements of four junction CPV systems.

© 2014 Optical Society of America

OCIS Codes
(040.5350) Detectors : Photovoltaic
(220.1770) Optical design and fabrication : Concentrators
(220.2740) Optical design and fabrication : Geometric optical design
(220.4610) Optical design and fabrication : Optical fabrication
(350.6050) Other areas of optics : Solar energy
(220.4298) Optical design and fabrication : Nonimaging optics

ToC Category:
Solar Concentrators

History
Original Manuscript: March 31, 2014
Revised Manuscript: May 23, 2014
Manuscript Accepted: June 2, 2014
Published: June 12, 2014

Citation
João Mendes-Lopes, Pablo Benítez, Pablo Zamora, and Juan C. Miñano, "9-fold Fresnel–Köhler concentrator with Fresnel lens of variable focal point," Opt. Express 22, A1153-A1163 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-S4-A1153


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References

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