Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Ultra?High Efficiency, High?Concentration PV System Based On Spectral Division Between GaInP?GaInAs?Ge And BPC Silicon Cells
Year:2011
Research Areas
  • Engineering
Information
Abstract
A novel HCPV nonimaging concentrator concept with high concentration (>500x) is presented. It uses the combination of a commercial concentration GaInP/GaInAs/Ge 3J cell and a concentration Back-Point-Contact (BPC) concentration 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 it, both POE and SOE performing Köhler integration to produce light homogenization. The band-pass filter sends the IR photons in the 900-1200 nm band to the silicon cell. Computer simulations predict that four-terminal terminal designs could achieve ~46% added cell efficiencies using commercial 39% 3J and 26% Si cells. 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 with peak efficiency of 36.9%.
International
Si
Congress
7 International Conference on Concentrating Photovoltaic Systems
960
Place
Las Vegas, EEUU
Reviewers
Si
ISBN/ISSN
978-0-7354-0979-8
Start Date
04/04/2011
End Date
06/04/2011
From page
88
To page
92
7TH INTERNATIONAL CONFERENCE ON CONCENTRATING PHOTOVOLTAIC SYSTEMS: CPV-7 Vol. 1407
Participants
  • Autor: Pablo Benitez Gimenez (UPM)
  • Autor: Marina Buljan . (UPM)
  • Autor: Juan Carlos Miñano Dominguez (UPM)
  • Autor: Ruben Mohedano (Externo)
  • Autor: Y. Sun (Externo)
  • Autor: W. Falicoff (Externo)
  • Autor: J. Vilaplana (Externo)
  • Autor: J. Chaves
  • Autor: Guillermo Biot (CeDInt-upm)
  • Autor: Jesus Lopez (Externo)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Ingeniería Óptica
  • Centro o Instituto I+D+i: Centro de Domótica Integral, CEDINT
  • Departamento: Electrónica Física
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