author = "Domínguez Domínguez, César"

Encontrado 27 documentos, página mostrada 1 de 3

Optical and electrical characterization of high-concentration photovoltaic systems = Caracterización óptica y eléctrica de sistemas fotovoltaicos de alta concentración

Description: The record efficiencies achieved by multijunction (MJ) solar cells have renewed the interest in concentrator photovoltaics (CPV), as the use of high concentration is necessary to reduce the area of these expensive devices and to maximize their efficiency. The promise is a reduction of the cost of th...
Language(s): Inglés

Feature issue introduction: light, energy and the environment, 2014

Description: This feature issue highlights contributions from authors who presented their research at the OSA Light, Energy and the Environment Congress, held in Canberra, Australia from 2-5 December, 2014.
Language(s): Inglés

Spectrum Controlled Solar Simulation for Factory Testing of CPV modules

Description: The validity of a solar simulator for concentrator PV modules is assessed through a comprehensive characterization of its illumination system: irradiance level and uniformity at the receiver, light collimation and spectral distribution. Methods for adjusting and characterizing the spectrum are descr...
Language(s): Inglés

Toward a consolidation of the CPV-specific-test procedures for inverters

Description: The inverter in a photovoltaic system assures two essential functions. The first is to track the maximum power point of the system IV curve throughout variable environmental conditions. The second is to convert DC power delivered by the PV panels into AC power. Nowadays, in order to qualify inverter...
Language(s): Inglés

Durability of dielectric fluids for concentrating photovoltaic systems

Description: Several dielectric fluids that might be used for immersing optics are analyzed in this paper. Their transmittances, both before and after an accelerated exposure to ultraviolet (UV) radiation equivalent to several years under real sun, are presented. In addition, the photocurrent losses caused by th...
Language(s): Inglés

Experimental analysis of a photovoltaic concentrator based on a single reflective stage immersed in an optical fluid

Description: This article reviews all the experimental tests carried out to analyze the performance of a FluidReflex photovoltaic concentrator. This novel concentrator concept consists of a single reflective stage immersed in an optical fluid. The presence of the fluid entails significant advantages. It not only...
Language(s): Inglés

Methodology of quantifying curvature of Fresnel lenses and its effect on CPV module performance

Description: Fresnel lenses used as primary optics in concentrating photovoltaic modules may show warping produced by lens manufacturing or module assembly (e.g., stress during molding or weight load) or due to stress during operation (e.g., mismatch of thermal expansion between different materials). To quantify...
Language(s): Inglés

Reduction of front-metallization grid shading in concentrator cells through laser micro-grooved cover glass

Description: Concentrator solar cell front-grid metallizations are designed so that the trade-off between series resistance and shading factor (SF) is optimized for a particular irradiance. High concentrator photovoltaics (CPV) typically requires a metallic electrode pattern that covers up to 10% of the cell sur...
Language(s): Inglés

Understanding causes and effects of non-uniform light distributions on multi-junction solar cells: Procedures for estimating efficiency losses

Description: This paper presents the mechanisms of efficiency losses that have to do with the non-uniformity of the irradiance over the multi-junction solar cells and different measurement techniques used to investigate them. To show the capabilities of the presented techniques, three different concentrators (th...
Language(s): Inglés

Power rating based on two different spectroheliometers with lattice-matched (LM) and upright metamorphic (UMM) component solar cells

Description: Synthetic and empirical data have been used to explore the influence of spectral mismatch between MJ cell technologies on outdoor CPV module rating uncertainty. Calibration biases are attenuated by tightly filtering spectral conditions to a spectral matching ratio (SMR) of 1 ± 2.5%. The sensitivity ...
Language(s): Inglés

Encontrado 27 documentos, página mostrada 1 de 3

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