Evaluation and improvement of IEC 60891 correction methods for I-V curves of defective photovoltaic panels
| Autor: | Anne Migan-Dubois, Demba Diallo, Baojie Li, Claude Delpha |
|---|---|
| Přispěvatelé: | Delpha, Claude, Laboratoire Génie électrique et électronique de Paris (GeePs), CentraleSupélec-Sorbonne Université (SU)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire des signaux et systèmes (L2S), CentraleSupélec-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Correction method
Maximum power principle Renewable Energy Sustainability and the Environment 020209 energy Photovoltaic system 02 engineering and technology 021001 nanoscience & nanotechnology Approximation error Distortion 0202 electrical engineering electronic engineering information engineering General Materials Science Overall performance 0210 nano-technology Algorithm [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing ComputingMilieux_MISCELLANEOUS Voltage Mathematics [SPI.SIGNAL] Engineering Sciences [physics]/Signal and Image processing |
| Zdroj: | Solar Energy Solar Energy, Elsevier, 2021, 216, pp.225-237 |
| ISSN: | 0038-092X 1471-1257 |
| Popis: | Correction of the I-V curve permits the comparison of curves measured under different conditions for photovoltaic (PV) panels' health monitoring purpose. IEC 60891 has defined three standard procedures named 1, 2 and 3 for the correction. They were initially designed to correct the curves of healthy PV panels. However, their performance, when applied to I-V curves measured on faulty panels, is rarely discussed. This work evaluates these correction methods on I-V curves simulated under different environmental conditions and for five types of defects of varying severity. The results show that procedure 3 has a relatively better overall performance but is not suitable for rapid application in the field as it requires the determination of reference curves. It is found that procedures 1 and 2 could introduce distortion of the curve's shape, with a relative error of up to 13.8% and 6.4%, respectively. A misestimation of 9.1% for key parameters of the curve has been observed, when using procedure 2 for maximum power. Based on the performance analysis, a new correction method is proposed to fit the corrected voltage. It can reduce the curve's average correction error by 31.3% compared to the original single curve correction method. Challenges and directions for future work are also presented. |
| Databáze: | OpenAIRE |
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