Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
9-Fold Fresnel-Köhler Concentrator for Increased Irradiance Uniformity on High Concentrations
Year:2013
Research Areas
  • Engineering
Information
Abstract
Non-uniform irradiance patterns over Multi-Junction Cells (MJC) in Concentrator Photovoltaics (CPV) originate significant power losses, especially when there are different spectral irradiance distributions over the different junctions, and is likely that will have a larger impact in 4 and 5 junction cells. The spectral irradiance distributions are especially affected with thermal effects on Silicone-on-Glass (SoG) CPV systems. This work presents a new optical design, the 9-fold Fresnel Köhler concentrator (FK9), prepared to overcome these effects at high concentrations while maintaining a large acceptance angle (acceptance angle-concentration product-CAP-of 0.65), paving the way for a future generation of high efficiency CPV systems of 4 and 5 junction cells. A comparative study between FK9 and other concentrators for different concentrations and temperatures is presented, confirming its excellent spectral irradiation distribution in extreme conditions.
International
Si
Congress
Summer Session on Optical Engineering, Design and Manufacturing. OEDM-2013
960
Place
Changchun China
Reviewers
Si
ISBN/ISSN
Start Date
04/08/2013
End Date
09/08/2013
From page
18
To page
20
CIOMP-OSA-TU4
Participants
  • Autor: Joao Mendes Lopes (UPM)
  • Autor: Pablo Benitez Gimenez (UPM)
  • Autor: Pablo Zamora Herranz (UPM)
  • Autor: Juan Carlos Miñano Dominguez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Ingeniería Óptica
  • Centro o Instituto I+D+i: Centro de Domótica Integral, CEDINT
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