Comparison of xenon lamp-based and led-based solar simulators

Leary, Gregory Patrick; Switzer, Gregg W.; Kuntz, Gene; Kaiser, Todd

doi:10.1109/pvsc.2016.7750227

Cited by 33 publications

(14 citation statements)

References 29 publications

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“…However, solar simulators used to determine the electrical characteristics of PV modules are classified by integrating their total irradiance over several broad parts of the spectrum and comparing them individually to the AM1.5 spectrum [19]. Thus, the spectral radiance of such solar simulators can exhibit variations between each other, and compared to the AM1.5 spectrum [20]. Correspondingly, the determined values of α can show large variations [21], [22].…”

Section: Temperature Sensitivity Of Pv Cell Parametersmentioning

confidence: 99%

The Development of Thermal Coefficients of Photovoltaic Devices

2020

Informacije MIDEM

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Photovoltaic modules installed in the field exhibit a wide range of operating temperatures, depending on the meteorological and environmental conditions. Their temperature influences their output power and conversion efficiency. Temperature dependence is typically described as a linear function with the temperature coefficients of open-circuit voltage, shortcircuit current and maximal output power. To analyse the development of these parameters over time, the data of modules of several technologies is evaluated, monitored from five to eight years at our outdoor test site. The measurement data is cleaned of outliers and systematic measurement errors and then translated to the irradiance of 1000 W/m2 at standard test conditions. Several discrepancies compared to the datasheet values of the photovoltaic modules are found. These discrepancies are attributed to the parameters' sensitivity to other factors, mostly pronounced in the short-circuit current. One such factor is the spectrum of the incident light. The temperature coefficients are then analysed each month to evaluate their development over time. A seasonality is found, showing a higher temperature sensitivity of the short-circuit current in the winter and a correspondingly lower sensitivity of the output power at maximum power point. However, no systematical change over time due to possible influences of module degradation in the timeframe of up to eight years was observed.

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Section: Temperature Sensitivity Of Pv Cell Parametersmentioning

confidence: 99%

The Development of Thermal Coefficients of Photovoltaic Devices

2020

Informacije MIDEM

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“…Leary [14] studied the performance of two different types of the solar simulators by comparing between the xenon lamp-based (Class : AAA) and led-based solar (Class :AAA) simulators. The I-V characteristics of the solar cells were tested in this study.…”

Section: Literature Reviewmentioning

confidence: 99%

Design Construct and Evaluation of Six- Spectral LEDs-Based Solar Simulator Based on IEC 60904-9

Watjanatepin¹

2017

IJET

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Abstract-This article presents the optical design of a six-spectral LED-based solar simulator. The study focuses on the measurement methods of spectral match, the non-uniformity and the temporal instability on the test plane. The proposed six-spectral LED solar simulator has an illuminated area of 900 cm 2 and can characterize medium size photovoltaic devices under variable irradiance. The spectral range covered is between 400 nm and 1100 nm which offer the capability of characterizing silicon PV technologies. The evaluation method is in accordance with IEC 60904-9. The Solar Power meter was used to measure the irradiance and a Compact Array Spectrometer and Fiber optic spectrometer were applied for the spectral match test. The irradiance is controlled via LabVIEW which can adjust the power to drive all LEDs in the constant current mode. The irradiance of 1000 W/m 2 was applied during testing. The results found that the spectral match classification is of class B. The non-uniformity of irradiance is of A-class across the illuminated area. The temporal instability of irradiance is capable of reaching class A. This idea is perfectly appropriate for the application of the testing of I-V characteristic of the silicon solar cell. For future work, the author has to improve the spectral match to reach an A Class.

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“…They are also able to irradiate in a wide spectral range, especially since the blue LED input in the market [8]. While giving similar results when used to characterize solar cells, they offer a number of advantages over the halogen lamps such as [9]: precision control of their emission both in temporal and intensity terms via software, fast switching and configurable modes, high-power efficiency, tunable spectral distribution using different ranges for exploring different physical and chemical effects at the absorption layers in the cells, more environmentally friendly because no mercury or heavy metals are present, and long life. LEDs simulators are being used both in inorganic [10] and organic PVs generic characterization [11], [12].…”

Section: Introductionmentioning

confidence: 99%

A Low-Cost LED-Based Solar Simulator

López-Fraguas

Sánchez‐Pena

Vergaz

2019

IEEE Trans. Instrum. Meas.

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Solar simulators are a fundamental instrument to characterize solar cells parameters, as they can reproduce the operating conditions under which the solar cells are going to work. However, these systems are frequently big, heavy, and expensive, and a small solar simulator could be a good contribution to test small prototyping devices manufactured in research labs, especially if it could manage the irradiation at any wavelength interval in a custom way. We have designed, developed, and calibrated a small solar simulator made entirely with LEDs, no optics inside, and electronically controlled through a PC using an Arduino microcontroller. The whole structure is 3-D printed in black PLA plastic. The electrical current through the LEDs, and thus the spectral irradiance of the simulator, is controlled with a very intuitive LabVIEW interface. As our calibration proves, we have built an easily reproducible and lowcost Class AAA solar simulator in a central illumination area of 1 cm 2 , according to the IEC60904-9 standard. This means that the homogeneity in that area is under a 2% deviation in spatial terms, below 0.5% in temporal terms, and is a factor of a 3% close to the AM1.5G sun reference spectrum. The system can be built and used in any research lab to get quick tests of new small solar cells of any material.

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Comparison of xenon lamp-based and led-based solar simulators

Cited by 33 publications

References 29 publications

The Development of Thermal Coefficients of Photovoltaic Devices

The Development of Thermal Coefficients of Photovoltaic Devices

Design Construct and Evaluation of Six- Spectral LEDs-Based Solar Simulator Based on IEC 60904-9

A Low-Cost LED-Based Solar Simulator

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