Memorias de investigación
Ponencias en congresos:
Freeform Fresnel RXI-RR Köhler design with spectrum-splitting for photovoltaics
Año:2011
Áreas de investigación
  • Ingenierías
Datos
Descripción
The development of a novel optical design for the high concentration photovoltaics (HPCV) nonimaging concentrator (>500x) that utilizes a built-in spectrum splitting concept is presented. 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. The POE and SOE perform Köhler integration to produce light homogenization on the receiver. The system uses a combination of a commercial concentration GaInP/GaInAs/Ge 3J cell and a concentration Back-Point-Contact (BPC) silicon cell for efficient spectral utilization, and an external confinement technique for recovering the 3J cell?s reflection. 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 greater than 500X with a wide acceptance angle of ±1º. 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%.
Internacional
Si
Nombre congreso
Optical Design and Engineering IV
Tipo de participación
960
Lugar del congreso
Marsella, Francia
Revisores
Si
ISBN o ISSN
0277-786X
DOI
Fecha inicio congreso
05/09/2011
Fecha fin congreso
08/09/2011
Desde la página
1
Hasta la página
9
Título de las actas
PROCEEDINGS OF SPIE Volume 8167 Proceedings of SPIE, 0277-786X, v. 8167 Optical Design and Engineering IV
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Ingeniería Óptica
  • Centro o Instituto I+D+i: Centro de Domótica Integral, CEDINT
  • Departamento: Electrónica Física