Electrical and Temperature Behavior of the Forward DC Resistance With Potential Induced Degradation of the Shunting Type in Crystalline Silicon Photovoltaic Cells and Modules

Florides, Michalis; Makrides, George; Georghiou, George E.

doi:10.1109/jphotov.2020.3030191

Cited by 8 publications

(3 citation statements)

References 33 publications

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“…Temperature, humidity, UV radiation, and dust accumulation significantly accelerate degradation by promoting defects [26][27][28][29][30]. Characterization methods like electroluminescence imaging, infrared thermography, and current-voltage tracing enable effective evaluation of degradation impacts on efficiency and power output [31][32][33][34][35][36][37][38][39][40].…”

Section: Discussionmentioning

confidence: 99%

Understanding Photovoltaic Module Degradation: An Overview of Critical Factors, Models, and Reliability Enhancement Methods

Diallo,

Melhaoui,

Rafi

et al. 2023

E3S Web of Conf.

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Photovoltaic (PV) modules, though reputed for reliability and long lifespans of 25-30 years, commonly experience gradual performance degradation influenced by varying environmental factors. This literature review explores the degradation of PV modules through in-depth analysis of failure modes, characterization techniques, analytical models, and mitigation strategies. A range of failure modes seen in PV modules are discussed, including interconnect breakage, cell cracks, metallization corrosion, delamination, ethylene-vinyl acetate (EVA) discoloration, Potential-Induced Degradation (PID), Light-Induced Degradation (LID), and other. Environmental stresses like temperature, humidity, ultraviolet (UV) radiation, and dust accumulation play significant roles in accelerating almost all degradation modes. Dust is a crucial factor in Middle East/North Africa (MENA) regions. Studying degradation modes under real-world conditions remains challenging, requiring extensive field testing to examine defect frequency, evolution rate, and impacts on energy production. PID is a major degradation mode requiring modeling and correction techniques to improve PV efficiency and lifespan. However, PID models are often limited to specific conditions, posing applicability challenges. Characterization methods like visual inspection, current-voltage (I-V),various imaging methods, and resonance ultrasonic vibrations (RUV) enable effective evaluation of degradation effects on module properties. Analytical models facilitate study of particular degradation modes and prediction of lifetimes under diverse conditions. Key factors influencing PV degradation include weather variations, materials quality, design parameters, PID, and hot spots. Protective coatings, encapsulation improvements, and module cleaning help mitigate degradation and prolong lifespan. A comprehensive understanding of mechanisms through integrated experimentation and modeling is critical for performance improvements. By reviewing major degradation phenomena, characterization techniques, analytical models, and mitigation strategies, this study promotes PV durability and sustainability. Significant knowledge gaps persist regarding module behavior under varied climate conditions and synergistic effects between different degradation mechanisms. Extensive field testing across diverse environments paired with advanced multiphysics modeling can provide valuable insights to guide technological enhancements for robust, long-lasting PV systems worldwide.

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Section: Discussionmentioning

confidence: 99%

Understanding Photovoltaic Module Degradation: An Overview of Critical Factors, Models, and Reliability Enhancement Methods

Diallo,

Melhaoui,

Rafi

et al. 2023

E3S Web of Conf.

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“…The open-circuit voltage drop is due to the reduction of the shunt resistance (parallel resistance) of the PID module. This can also be exempli ed by the cells' shunting (blackout/dark) when EL images are captured [19][20][21].…”

Section: Introductionmentioning

confidence: 95%

Filed Study on the Severity of Photovoltaic Potential Induced Degradation

Badran

Dhimish

2022

Preprint

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Photovoltaic systems can be affected by different types of defects, faults, and mismatching conditions. In the last couple of years, the PV industry caught upon a severe problem in PV systems, so-called potential induced degradation (PID). The PID appears over time (months or even years); it may be undetectable at an early installation stage of the PV system. However, over time, it becomes apparent as it might lead to a significant drop in the output power. This paper conducts a field study of PV modules affected by PID over two successive years. With the support of thermal and electroluminescent imaging, the PID was discovered. Furthermore, it was found that the PID emerged in the PV modules after being in the field of different timing 4 to 8 months and led to a drop in the output power in the range of 27–39%. An anti-PID box was fitted during the second year of the PV operation to recover the PID. Accordingly, it has stabilized the power degradation, but it could not restore the performance of the affected PID as compared with healthy/non-PID modules.

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“…One of the main degradation mechanisms is called potential-inducted-degradation (PID) [1][2][3]. For many PV systems, PID is one of the leading causes of module degradation caused by the high voltage between the encapsulants and the front glass surface, which is grounded via the substructure of the cell or the frame [4].…”

Section: Introductionmentioning

confidence: 99%

Recovery of Photovoltaic Potential-Induced Degradation Utilizing Automatic Indirect Voltage Source

Dhimish

Badran

2022

IEEE Trans. Instrum. Meas.

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Electrical and Temperature Behavior of the Forward DC Resistance With Potential Induced Degradation of the Shunting Type in Crystalline Silicon Photovoltaic Cells and Modules

Cited by 8 publications

References 33 publications

Understanding Photovoltaic Module Degradation: An Overview of Critical Factors, Models, and Reliability Enhancement Methods

Understanding Photovoltaic Module Degradation: An Overview of Critical Factors, Models, and Reliability Enhancement Methods

Filed Study on the Severity of Photovoltaic Potential Induced Degradation

Recovery of Photovoltaic Potential-Induced Degradation Utilizing Automatic Indirect Voltage Source

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