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


Autoria(s): Buljan, Marina; Benitez Gimenez, Pablo; Mohedano del Pozo, Raúl; Miñano Dominguez, Juan Carlos; Sun, Y.; Falicoff, W.; Vilaplana, J.; Chaves, Julio; Biot Marí, Guillermo; López, J.
Data(s)

2011

Resumo

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%.

Formato

application/pdf

Identificador

http://oa.upm.es/12863/

Idioma(s)

eng

Relação

http://oa.upm.es/12863/1/INVE_MEM_2011_107967.pdf

http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1341500

Direitos

http://creativecommons.org/licenses/by-nc-nd/3.0/es/

info:eu-repo/semantics/openAccess

Fonte

Proceedings of Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VIII | Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VIII | 21/08/2011 - 22/08/2011 | San Diego, EEUU

Palavras-Chave #Energías Renovables #Física
Tipo

info:eu-repo/semantics/conferenceObject

Ponencia en Congreso o Jornada

PeerReviewed