A simplified contactless method for outdoor photoluminescence imaging

Bhoopathy, Raghavi; Kunz, Oliver; Juhl, Mattias K.; Trupke, Thorsten; Hameiri, Ziv

doi:10.1109/pvsc40753.2019.8981249

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…EL and PL imaging unveil crucial details concerning performance-limiting faults, including micro-cracks, recombination, series resistance, and shunts [55]. The disparity between PL and EL lies in the clarity of defect details.…”

Section: Pl Imagingmentioning

confidence: 99%

“…Recent PL imaging techniques effectively investigate failure mechanisms like local series resistance issues and bypass diode failure in open-circuit conditions, critical for solar module analysis. However, further technological development is required for the commercial deployment of other methods like outdoor PL without modulation and inverter switching [55,58,59].…”

Section: Pl Imagingmentioning

confidence: 99%

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Performance and degradation analysis for different solar photovoltaic technologies under hot and humid environment: a review

Makhija,

Bohra

2023

Prog. Energy

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Solar photovoltaic (SPV) systems installed on water bodies, i.e., floating solar PV (FSPV) and canal top solar PV (CTSPV), have gained significant propulsion in recent years, not only because of their enormous potential but also because of other additional co-benefits. This review article discusses the scope and potential of FSPV and CTSPV, an ambitious plan, and various upcoming FSPV projects in India. The review focuses on different degradation modes, failure mechanisms, characterization techniques and distinct factors influencing the degradation of SPVs operating in tropical climates. It was explored that potential induced degradation (PID) and materialistic degradation have a significant impact on the performance of SPV. The paper provides an overview of the test procedures outlined in IEC-61215 and IEC-62804 that pertain to SPV performance under hot and humid conditions. Additionally, it presents a comprehensive review of the various methodologies adopted for accelerated damp heat testing to predict the life of PV systems in such conditions, and their significant analytical and visual outcomes is elucidated. Also, till date, no simulation tool has been available to assess the long-term performance of SPV in a humid environment. As this energy generation technique is still in its infancy, this study will help many researchers and solar power developers recognize the impact of elevated and prolonged exposure to temperature and humidity on generation, degradation, and mode of failure for different SPV technologies.

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Section: Pl Imagingmentioning

confidence: 99%

Section: Pl Imagingmentioning

confidence: 99%

Performance and degradation analysis for different solar photovoltaic technologies under hot and humid environment: a review

Makhija,

Bohra

2023

Prog. Energy

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Outdoor Implied Current–Voltage Measurements of an Individual Encapsulated Cell in a Module

Bhoopathy

Kunz

Dumbrell

et al. 2021

IEEE J. Photovoltaics

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Inspection techniques in photovoltaic power plants: A review of electroluminescence and photoluminescence imaging

Redondo-Plaza,

Zorita-Lamadrid,

Alonso-Gómez

et al. 2024

Renewable Energies

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The growth of photovoltaic power plants in both size and number has spurred the development of new approaches in inspection techniques. The most commonly employed methods include visual inspections, current-voltage measurements, infrared thermography, and luminescence imaging. Luminescence, rooted in the electromagnetic radiation capture of semiconductor structures that make up solar cells, proves effective in detecting various failures that may occur throughout the lifespan of a photovoltaic module. This phenomenon can be induced either by injecting current into the photovoltaic module (Electroluminescence) or through optical excitation using an appropriate light source (Photoluminescence). This paper offers an overview of the conventional outdoor luminescence imaging technique, delving into its applications and limitations. Additionally, it provides a comprehensive review of innovative outdoor luminescence technique approaches. These novel techniques aim to address several limitations of conventional methods, such as the considerably lower luminescence emission intensity compared to solar radiation, the need for external energy sources for current injection, the required acquisition time, and the necessity of disconnecting the solar module.

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A simplified contactless method for outdoor photoluminescence imaging

Cited by 3 publications

References 10 publications

Performance and degradation analysis for different solar photovoltaic technologies under hot and humid environment: a review

Performance and degradation analysis for different solar photovoltaic technologies under hot and humid environment: a review

Outdoor Implied Current–Voltage Measurements of an Individual Encapsulated Cell in a Module

Inspection techniques in photovoltaic power plants: A review of electroluminescence and photoluminescence imaging

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