1000x shadow-free mirror-based Köhler concentrator

Hernández, Marta I.; Benı́tez, Pablo; Mendes-Lopes, João; Cvetković, Aleksandra; Sun, Yupin; Miñano, Juan C.; Chaves, Julio; Mohedano, Rubén

doi:10.1117/12.931657

Cited by 4 publications

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“…The purpose of this work is to conduct the first experiment on a novel highconcentration CPV module based on the off-axis XR-Köhler concentrator developed by Hernandez et al [1]. A mirror-based CPV can be used to achieve a larger geometrical concentration ratio (C g ) than that obtained by a Fresnel-lens-based CPV.…”

Section: Introductionmentioning

confidence: 99%

Field experiment of 800× off-axis XR-Köhler concentrator module on a carousel tracker

Yamada¹,

Okamoto²,

Ijiro³

et al. 2013

AIP Conference Proceedings

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Articles you may be interested inA remotely accessible solar tracker system design J. Renewable Sustainable Energy 6, 033143 (2014); 10.1063/1.4885099Effect of temperature and concentration on commercial silicon module based low-concentration photovoltaic system J. Renewable Sustainable Energy 5, 013113 (2013); 10.1063/1.4790817Indoor performance analysis of a low concentrating photovoltaic module for building integration AIP Conf.A two junction, four terminal photovoltaic device for enhanced light to electric power conversion using a low-cost dichroic mirror Abstract: This paper presents the design and preliminary experimental results of a concentrator-type photovoltaic module based on a free-form off-axis 800×XR-Köhler concentrator. The off-axis XR-Köhler concentrator is one of the advanced concentrators that perform high concentration with a large acceptance angle and excellent irradiance uniformity on a solar cell. As a result of on-sun characterization of the unglazed single-cell unit test rig, the temperaturecorrected DC module efficiency was 32.2% at 25 ºC without an anti-reflective (AR) coating on the secondary optics, and the acceptance angle was more than r1.0q. In addition, the non-corrected DC efficiency of an individual cell in a glazed 8-cell unit module mounted on a carousel tracking system was measured. The individual efficiency deviated in the range of 24.3-27.4%, owing to the mirror shape and alignment errors. The resultant series-connected efficiency was approximately 25% at direct normal irradiation (DNI) of 770 W/m 2 .

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Section: Introductionmentioning

confidence: 99%

Field experiment of 800× off-axis XR-Köhler concentrator module on a carousel tracker

Yamada¹,

Okamoto²,

Ijiro³

et al. 2013

AIP Conference Proceedings

Self Cite

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“…Other types of multifold Köhler are designed for both refractive and reflective POEs. For instance, a fourfold Köhler approach to an asymmetric mirror was developed to address the reflective configuration 44 [see Fig. 5(a)].…”

Section: Multifold Köhler Concentratorsmentioning

confidence: 99%

Recent trends in concentrated photovoltaics concentrators’ architecture

et al. 2014

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Abstract. The field of concentrated photovoltaics (CPV) has met some remarkable advances in recent years. The continuous increase in conversion efficiency of multijunction solar cells and new advancements in optics have led to new demands and opportunities for optical design in CPV. This paper is a mini-review on current requirements for CPV optical design, and it presents some of the main trends in recent years on CPV systems architecture. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Annex: Design of the XR Concentrator

2016

Handbook of Concentrator Photovoltaic Technology

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1000x shadow-free mirror-based Köhler concentrator

Cited by 4 publications

References 4 publications

Field experiment of 800× off-axis XR-Köhler concentrator module on a carousel tracker

Field experiment of 800× off-axis XR-Köhler concentrator module on a carousel tracker

Recent trends in concentrated photovoltaics concentrators’ architecture

Annex: Design of the XR Concentrator

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