Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

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

Not Accessible

Your library or personal account may give you access

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.

© 2013 Optical Society of America

PDF Article
More Like This
Maximizing the Efficiency Cost Ratio in a CPV System via a Tolerant Optical Design

Juan C. Miñano, Pablo Benítez, Pablo Zamora, Rubén Mohedano, Aleksandra Cvetkovic, Marina Buljan, Julio Chaves, and Roberto Alvarez
SMA2 Optics for Solar Energy (SOLED) 2010

Lenticulated Köhler Integrator for a Utility-Scale CPV System

Brian M. Wheelwright
SRWC2 Optics for Solar Energy (SOLED) 2011

A History of, Update on and a Wish List for Optics in CPV

Adam Plesniak
RT2D.1 Optics for Solar Energy (SOLED) 2013

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved