Fecher F, Pickel T, Buerhop-Lutz C, Camus C, Brabec C (2016)
Publication Language: English
Publication Type: Conference contribution, Conference Contribution
Publication year: 2016
Pages Range: 2252 - 2254
Conference Proceedings Title: 32nd European Photovoltaic Solar Energy Conference and Exhibition
ISBN: 3-936338-41-8
DOI: 10.4229/EUPVSEC20162016-5BV.4.27
Photovoltaic (PV) modules are often affected by defects caused by transport and installation or by field
degradation due to environmental conditions. If a power reduction is observed in the inverter data, a detailed error
cause analysis is often very cost-intensive even when using imaging methods like thermography or
electroluminescence. We present a method to classify the defect type of PV modules only by evaluating the
maximum power output (Pmpp) for different irradiances. Thereby, low parallel resistance, high series resistance and
broken cells can be distinguished from each other. Simulations and consistent explanations confirm the experimental
findings. The method works particularly well for parallel resistance problems like potential induced degradation
(PID). Thus, this failure type can easily be diagnosed in modules. The method should also be applicable to data of
module strings and to thermography-based failure analysis in field which will be investigated in the future.
APA:
Fecher, F., Pickel, T., Buerhop-Lutz, C., Camus, C., & Brabec, C. (2016). Failure classification of defective PV Modules based on maximum power point analysis. In 32nd European Photovoltaic Solar Energy Conference and Exhibition (pp. 2252 - 2254). München, DE.
MLA:
Fecher, Frank, et al. "Failure classification of defective PV Modules based on maximum power point analysis." Proceedings of the 32nd European Photovoltaic Solar Energy Conference and Exhibition, München 2016. 2252 - 2254.
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