9-Fold Fresnel Köhler Concentrator for Increased Uniform Irradiance on High Concentrations

Descripción (resumen): 

Non-uniform irradiance patterns created by Concentrated Photovoltaics (CPV) concentrators over Multi-Junction Cells (MJC) can originate significant power losses, especially when there are different spectral irradiance distributions over the different MJC junctions. This fact has an increased importance considering the recent advances 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 CPV optical design, the 9-fold Fresnel Köhler concentrator, prepared to overcome these effects at high concentrations while maintaining a large acceptance angle, paving the way for a future generation of high efficiency CPV systems of 4 and 5 junction cells.

Tipo publicación: 
Publicado en: 
9th International Conference on Concentrator Photovoltaic Systems Miyazaki, Japan. (Oral Session 7: Concentrating Optics and Related Materials)
Ingeniería óptica
Fecha de Publicacion: 
Abril 2013
Autores CeDInt: