Free-form Fresnel RXI-RR Köhler design for high-concentration photovoltaics with spectrum-splitting

Buljan, Marina, Benítez Giménez, Pablo ORCID: https://orcid.org/0000-0002-5559-4593, Mohedano del Pozo, Raúl, Miñano Dominguez, Juan Carlos ORCID: https://orcid.org/0000-0003-2281-0728, Sun, Y., Falicoff, W., Vilaplana, J., Chaves, Julio, Biot Marí, Guillermo and López, J. (2011). Free-form Fresnel RXI-RR Köhler design for high-concentration photovoltaics with spectrum-splitting. In: "Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VIII", 21/08/2011 - 22/08/2011, San Diego, EEUU.

Description

Title: Free-form Fresnel RXI-RR Köhler design for high-concentration photovoltaics with spectrum-splitting
Author/s:
Item Type: Presentation at Congress or Conference (Article)
Event Title: Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VIII
Event Dates: 21/08/2011 - 22/08/2011
Event Location: San Diego, EEUU
Title of Book: Proceedings of Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VIII
Date: 2011
Volume: 8124
Subjects:
Faculty: Centro de Domótica Integral (CeDInt) (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Development of a novel HCPV nonimaging concentrator with high concentration (>500x) and built-in spectrum splitting concept is presented. It uses the combination of a commercial concentration GaInP/GaInAs/Ge 3J cell and a concentration Back-Point-Contact (BPC) silicon cell for efficient spectral utilization, and external confinement techniques for recovering the 3J cell's reflection. The primary optical element (POE) is a flat Fresnel lens and the secondary optical element (SOE) is a free-form RXI-type concentrator with a band-pass filter embedded in it - Both the POE and SOE performing Köhler integration to produce light homogenization on the receiver. The band-pass filter transmits the IR photons in the 900-1200 nm band to the silicon cell. A design target of an "equivalent" cell efficiency ~46% is predicted using commercial 39% 3J and 26% Si cells. A projected CPV module efficiency of greater than 38% is achievable at a concentration level larger than 500X with a wide acceptance angle of ±1°. A first proof-of concept receiver prototype has been manufactured using a simpler optical architecture (with a lower concentration, ~100x and lower simulated added efficiency), and experimental measurements have shown up to 39.8% 4J receiver efficiency using a 3J cell with a peak efficiency of 36.9%.

More information

Item ID: 12863
DC Identifier: https://oa.upm.es/12863/
OAI Identifier: oai:oa.upm.es:12863
Official URL: http://proceedings.spiedigitallibrary.org/proceedi...
Deposited by: Memoria Investigacion
Deposited on: 13 Nov 2012 09:48
Last Modified: 04 Mar 2023 10:23
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