研究目的
To understand the changes within PV modules that lead to lost peak power and to explore methods for analyzing these changes to improve future module construction.
研究成果
The chapter provides a comprehensive overview of methods to analyze PV module degradation, highlighting the importance of understanding specific changes to improve module reliability. Techniques like I–V analysis, IR inspection, and EL are crucial for identifying and addressing degradation mechanisms.
研究不足
The methods discussed may not capture all degradation modes, and some techniques like EL require laboratory conditions. Visual inspection may not identify all defects, especially those not visible to the naked eye.
1：Experimental Design and Method Selection:
Analysis of I–V parameters, measurement of performance at different irradiances, visual inspection, Infrared (IR) Inspection, Electroluminescence (EL) and evaluation of adhesion.
2：Sample Selection and Data Sources:
PV modules degraded from field exposure or accelerated stress testing.
3：List of Experimental Equipment and Materials:
Power supply, digital camera, IR camera, EL detector.
4：Experimental Procedures and Operational Workflow:
Detailed procedures for each method including setup, data collection, and analysis.
5：Data Analysis Methods:
Analysis of I–V curves, performance ratio, fill factor, and visual inspection data.
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