Experimental confirmation of FK concentrator insensitivity to chromatic aberrations

Zamora Herranz, Pablo and Espinet González, Pilar and Benitez Gimenez, Pablo and García Vara, Iván and Rey-Stolle Prado, Ignacio and Miñano Dominguez, Juan Carlos and Algora del Valle, Carlos (2013). Experimental confirmation of FK concentrator insensitivity to chromatic aberrations. In: "9th International Conference on Concentrator Photovoltaic Systems", 15/04/2013 - 17/04/2013, Miyazaki, Japan. pp. 88-91. https://doi.org/10.1063/1.4822206.

Description

Title: Experimental confirmation of FK concentrator insensitivity to chromatic aberrations
Author/s:
  • Zamora Herranz, Pablo
  • Espinet González, Pilar
  • Benitez Gimenez, Pablo
  • García Vara, Iván
  • Rey-Stolle Prado, Ignacio
  • Miñano Dominguez, Juan Carlos
  • Algora del Valle, Carlos
Item Type: Presentation at Congress or Conference (Article)
Event Title: 9th International Conference on Concentrator Photovoltaic Systems
Event Dates: 15/04/2013 - 17/04/2013
Event Location: Miyazaki, Japan
Title of Book: AIP Conference Proceedings
Date: 2013
Volume: 1556
Subjects:
Freetext Keywords: Fresnel lens, nonimaging, solar concentrator, Köhler integration, CPV, multi-junction solar cells
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The FK concentrator has demonstrated during the last years that compares very well with other Fresnel-based concentrator optics for CPV. There are several features that provide the FK high performance: (1) high optical efficiency; (2) large tolerance to tracking misalignment and manufacturing errors, thanks to a high CAP (Concentration-Acceptance Product); (3) good irradiance uniformity and low chromatic dispersion on the cell surface. Non-uniformities in terms of absolute irradiance and spectral content produced by conventional CPV systems can originate electrical losses in multi-junction (MJ) solar cells. The aim of this work is to analyze the influence of these non-uniformities in the FK concentrator performance and how FK concentrator provides high electrical efficiencies thanks to its insensitivity to chromatic aberrations, especially when components move away from the module nominal position due to manufacturing misalignments. This analysis has been done here by means of both, experimental on-sun measurements and simulations based on 3D fully distributed circuit model for MJ cells.

More information

Item ID: 26483
DC Identifier: http://oa.upm.es/26483/
OAI Identifier: oai:oa.upm.es:26483
DOI: 10.1063/1.4822206
Deposited by: Memoria Investigacion
Deposited on: 08 Jul 2014 18:16
Last Modified: 02 Oct 2014 22:56
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