Development of tunable close match LED solar simulator with extended spectral range to UV and IR

Kolberg, D.; Schubert, F; Lontke, N.; Zwigart, A.; Spinner, D.M.

doi:10.1016/j.egypro.2011.06.109

Cited by 50 publications

(28 citation statements)

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“…In 2009, the first LED simulator with 1‐Sun intensity was achieved . Subsequently, researchers turned their attention to developing LED‐based solar simulators which could meet the AAA rating as specified by the standards of (1) the American Society for Testing and Materials (ASTM) E‐927‐10; (2) the International Electro‐technical Commission (IEC) IEC60904‐9; and (3) the Japanese Industrial Standard (JIS) JIS C 8912 . Stuckelberger et al reported the first limited wavelength range (400‐700 nm) AAA LED solar simulator in 2014, providing illumination over 18 × 18 cm .…”

Section: Introductionmentioning

confidence: 99%

Modular LED arrays for large area solar simulation

Al-Ahmad

Holdsworth

Vaughan

et al. 2018

Progress in Photovoltaics

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A modular array of light emitting diodes of six different wavelengths is modelled and experimentally tested to provide Class AAA solar simulator illumination over an area of 20 cm2. The module demonstrates uniform distribution of light flux density across the sample test plane region, achieving Class A AM 1.5 G irradiance (100 mW/cm2) across the 400 to 1100‐nm wavelength range. The new system has a spectral match of 99.5%, a spatial non‐uniformity of 2.0%, and a temporal instability of <0.2%. The performance of the design (which will allow for large area simulators to be cheaply assembled from multiple modules) is then critically assessed in terms of the existing solar simulator standards and benchmarked against a conventional simulator.

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Section: Introductionmentioning

confidence: 99%

Modular LED arrays for large area solar simulation

Al-Ahmad

Holdsworth

Vaughan

et al. 2018

Progress in Photovoltaics

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“…[7]was reported on a fully LED-based solar simulator for the PVindustry. The spectrum of a solar simulator was from 350 to 1100 nm.…”

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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“…More recently, research work has focused on terrestrial radiation simulators. These devices are used for a wide range of applications including testing, calibrating and characterising photovoltaic (PV) cells [11][12][13][14] and for the clinical testing of sunscreens [15][16][17]. The list of applications extends to the automotive industry for testing dashboards, steering wheels and air bags [18][19][20]; PV materials ageing tests [21][22][23][24]; studying the effects of light on the growth of plants and algae [25][26][27] and testing of thermal/thermo-chemical devices for use in the chemical reforming and production of chemical elements [28][29][30].…”

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confidence: 99%

Light source selection for a solar simulator for thermal applications: A review

Tawfik

Tonnellier

Sansom

2018

Renewable and Sustainable Energy Reviews

123

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Solar simulators are used to test components and systems under controlled and repeatable conditions, often in locations with unsuitable insolation for outdoor testing. The growth in renewable energy generation has led to an increased need to develop, manufacture and test components and subsystems for solar thermal, photovoltaic (PV), and concentrating optics for both thermal and electrical solar applications. At the heart of any solar simulator is the light source itself. This paper reviews the light sources available for both low and high-flux solar simulators used for thermal applications. Criteria considered include a comparison of the lamp wavelength spectrum with the solar spectrum, lamp intensity, cost, stability, durability, and any hazards associated with use. Four main lamp types are discussed in detail, namely argon arc, the metal halide, tungsten halogen lamp, and xenon arc lamps.In addition to describing the characteristics of each lamp type, the popularity of usage of each type over time is also indicated. This is followed by guidelines for selecting a suitable lamp, depending on the requirements of the user and the criteria applied for selection. The appropriate international standards are also addressed and discussed. The review shows that metal halide and xenon arc lamps predominate, since both provide a good spectral match to the solar output. The xenon lamp provides a more intense and stable output, but has the disadvantages of being a high-pressure component, requiring infrared filtering, and the need of a more complex and expensive power supply. As a result, many new solar simulators prefer metal halide lamps. KeywordsSolar simulator, sunlight, solar spectrum, CSP, metal halide, tungsten lamp 1 Introduction The growing demand for energy, combined with issues of environmental pollution, climate change, and the rapid depletion of fossil fuels, have encouraged the research and development of cost effective renewable alternatives [1-3]. Solar electrical and thermal energy research groups have focused on developing novel technologies and on improving existing renewable solutions. In 2014, the global combined installed capacity of solar hot water and concentrating solar power (CSP) was 410.4 GW, representing 8% of the world's renewable energy sources [4].The transient nature of solar energy represents a critical challenge for technologies testing. Outdoor experiments are carried out in real but uncontrollable environments. For example, incident solar energy levels are highly dependent on atmospheric conditions and sky clarity over time [5]. Therefore, achieving

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Development of tunable close match LED solar simulator with extended spectral range to UV and IR

Cited by 50 publications

References 0 publications

Modular LED arrays for large area solar simulation

Modular LED arrays for large area solar simulation

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

Light source selection for a solar simulator for thermal applications: A review

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