Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Spatial and spectral non-uniform irradiance distribution effects on multijunction solar cells
Year:2011
Research Areas
  • Solar energy,
  • Solar cells,
  • Electric engineering
Information
Abstract
When refractive optical systems are used to concentrate light onto high efficiency solar cells chromatic aberration creates irradiance distributions over the cells which are neither spatially nor spectrally uniform. Multijunction solar cells are the photovoltaic device with the highest conversion efficiency. However, their efficiency under a concentration system can be significantly lower than the measured efficiency under uniform irradiance and reference conditions. In this paper the irradiance distribution created by a Fresnel lens is studied by ray-tracing simulations and it is characterized using a CCD camera and adequate filters. The effects of the non uniform irradiance distribution on the solar cell performance are analyzed by measuring the IV curve of an elementary unit of the system when illuminated by a solar simulator. IV curves for different lens to cell distances are measured and compared to allow a better understanding of the system.
International
Si
Congress
Photonics North
960
Place
Ottawa, Canadá
Reviewers
Si
ISBN/ISSN
0277786X
10.1117/12.905788
Start Date
16/05/2011
End Date
18/05/2011
From page
800724
To page
800724
Proc. SPIE 8007
Participants
  • Autor: Marta Victoria Pérez (UPM)
  • Autor: Rebeca Herrero Martin (UPM)
  • Autor: Cesar Dominguez Dominguez (UPM)
  • Autor: Ignacio Anton Hernandez (UPM)
  • Autor: Stephen Askins . (UPM)
  • Autor: Gabriel Sala Pano (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Integración de Sistemas e Instrumentos (ISI)
  • Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Sistemas Electrónicos y de Control
  • Departamento: Electrónica Física
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)