On-sun testing of a 100-shingled-cell dense receiver array at ∼50 W/cm2 using overlapped single-axis foci

Norman, Richard S.; Bouzazi, Boussairi; Léveillé, Étienne; Siskavich, Brad; Dufault, Jean-Francois; Arenas, Osvaldo; Arès, Richard; Aimez, Vincent; Fréchette, Luc

doi:10.1063/1.5053497

Cited by 3 publications

(1 citation statement)

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“…To further increase the efficiency using module configuration, Norman et al [23] proposed to overlap the foci of single-axis mirrors into an oblong compound focus to minimize gaps in the receptive surface, resulting in a series configuration by direct contact. This configuration allowed a direct electrical connection between modules with almost null surface losses.…”

Section: Introductionmentioning

confidence: 99%

Impact of DC-DC Converters on the Energy Performance of a Dense Concentrator PV Array under Nonuniform Irradiance and Temperature Profiles

Fernández,

Rosell-Mirmi,

Regany

et al. 2024

Energies

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Efficiency losses resulting from electrical mismatching in densely packed photovoltaic arrays present a significant challenge, particularly exacerbated in nonuniformly illuminated receivers and under varying temperatures. Serial configurations are particularly susceptible to radiation nonuniformities, while parallel systems are negatively affected by temperature variations. Various authors have recommended the incorporation of electrical voltage and current sources to mitigate these losses. This study explores different electrical connection configurations utilizing concentrated photovoltaic (CPV) cells and DC-DC electrical current converters. A self-adaptive microfluidic cell matrix cooling system is employed to mitigate thermal dispersion caused by the highly nonuniform illumination profile. The obtained results for each configuration are compared with the total electrical power produced by individual cells, operating under identical radiation and temperature conditions to those of the entire array. The results reveal a noteworthy increase in production across all studied configurations, with the parallel–series arrangement demonstrating the most promising practical utility. This configuration exhibited a remarkable 50.75% increase in power production compared with the standard series connection.

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Section: Introductionmentioning

confidence: 99%