A compact AAA-compatible multispectral solar simulator based on spherical cap chamber

Song, Jia-Yong; Zeng, Ruimin; Xu, Duo; Wang, Yi; Ding, Zhao; Yang, Chen

doi:10.1016/j.solener.2021.03.074

Cited by 10 publications

(1 citation statement)

References 40 publications

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“…A dodecahedron-shaped reflector for five light sources ensures less than 2% non-uniformity within 72% of the inscribed circle of the aperture in the case of a solar simulator with five source types [6]. Similar non-uniformity is also achieved with a spherical Lambertian reflector [7]. Common reflectors for the entire LED array can provide similar performance and allow for the construction of larger simulators of multiple sizes.…”

Section: Introductionmentioning

confidence: 91%

Optimization of LED-Based Solar Simulators for Cadmium Telluride and Microcrystalline Silicon Solar Cells

Vosylius,

Novičkovas,

Tamošiūnas

2023

Energies

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Solar simulators are instruments used for controllable measurements of the properties of solar cells in indoor environments. The purpose of this paper is to examine the peculiarities of the photoresponses of CdTe/CdSeTe and microcrystalline Si solar cells and to reveal the pathways to reduction of spectrum mismatch effects when using light-emitting diode (LED)-based or hybrid LED and halogen lamp-based solar simulators of an A+-class spectrum with a small number of sources. While only four different LED types are needed to achieve an A+-class spectrum under updated IEC 60904-9:2020 standard requirements, as demonstrated by our results, additional ultraviolet LEDs are necessary to reduce the spectrum mismatch. For hybrid solar simulator configurations, the combination of cool white LED arrays and halogen emitters can serve as a main light source. Optimized for both solar cell types, hybrid simulators have a lower spectral deviation and better spectrum coverage compared to LED-only simulators with the same number of distinct source types. In addition, our results predict lower spectral mismatch errors for optimized simulators when compared with conventional Xe lamp-based simulators.

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Section: Introductionmentioning

confidence: 91%

Optimization of LED-Based Solar Simulators for Cadmium Telluride and Microcrystalline Silicon Solar Cells

Vosylius,

Novičkovas,

Tamošiūnas

2023

Energies

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An adjustable high‐flux LED solar simulator based on dome structure

Xue,

Song,

Qin

et al. 2024

Energy Science & Engineering

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High‐flux solar simulator (HFSS) commonly serves as a vital instrument for conducting material testing and thermochemical experiments, offering valuable applications in the fields of photovoltaic cells and concentrated solar energy. This paper proposes a continuously adjustable HFSS based on light‐emitting diodes (LEDs), which can be employed for experimental testing in the solar cell aging. First, an irradiation unit module has been built using high‐power LEDs and total internal reflection lenses, and the irradiation performance of the single unit has been validated. In theory, a dome layout model is proposed, in which a detailed geometric analysis is provided for the maximum number of units that can be accommodated on the dome, considering unit size and dome dimensions. Subsequently, aluminum disc has been used as thermal flux sensors, and the irradiation distribution of the system is characterized using a charge‐coupled device observation camera and Lambertian board. The results indicate that the system offers an adjustable average flux ranging from 1.6 to 9.04 kW/m2 when the system input current is in the range of 7.2–54 A. Additionally, the system demonstrates a spatial nonuniformity of 2% within a 10‐mm diameter (Φ = 10 mm) region test region and temporal instability of 2% within 30 min.

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Low-cost monochromatic uniform illumination HSI system for detection and classification of apple bruise

Chen,

Ding,

Song

et al. 2024

Food Measure

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A compact AAA-compatible multispectral solar simulator based on spherical cap chamber

Cited by 10 publications

References 40 publications

Optimization of LED-Based Solar Simulators for Cadmium Telluride and Microcrystalline Silicon Solar Cells

Optimization of LED-Based Solar Simulators for Cadmium Telluride and Microcrystalline Silicon Solar Cells

An adjustable high‐flux LED solar simulator based on dome structure

Low-cost monochromatic uniform illumination HSI system for detection and classification of apple bruise

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