Observatorio de I+D+i UPM

Descripción
The photocurrent produced by a multijunction III-V cell is limited by the component cell of the union which yields the lowest photocurrent. The induced energy losses are quantified by the Spectral Radiation Matching Factor (SRMF), defined as the ratio between the energy produced by a III-V multijunction cell and the energy that could be produced if the subcells were current matched at any moment. Accurate SRMF estimations generally require accurate measurement of solar spectrum. Another method is to measure the spectrum using three ¿isotype¿ cells, or single-junction cells that have the same spectral response as each of the three component cells in the multi-junction stack. That method is validated against photocurrents calculated from spectral measurements (by spectroradiometer) and broadband direct beam measurements (by pyrheliometer). Those comparisons show agreement in the results above 98% under clear-sky conditions. The difference between the two independent SRMF calculations is within 1% margin. The application of this method to the spectral measurements realized in Madrid in 2009 leads to estimate an annual current spectral mismatching of around 7%.
Internacional	Si
Nombre congreso	6th International Conference on Concentrating Photovoltaic Systems
Tipo de participación	960
Lugar del congreso	Greiburg, Germany
Revisores	Si
ISBN o ISSN	0094-243X
DOI
Fecha inicio congreso	07/04/2010
Fecha fin congreso	09/04/2010
Desde la página	329
Hasta la página	332
Título de las actas	AIP Conference Proceedings of the 6th International Conference on Concentrating Photovoltaic Systems

Esta actividad pertenece a memorias de investigación

• Autor: Jonathan Leloux . (UPM)
• Autor: Dolores Pachón Veira (UPM)
• Autor: Gabriel Sala Pano (UPM)

• Creador: Grupo de Investigación: Integración de Sistemas e Instrumentos (ISI)
• Centro o Instituto I+D+i: Instituto de Energía Solar