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A Partial Shading Detection Algorithm for Photovoltaic Generation Systems | ||
| Journal of Solar Energy Research | ||
| دوره 6، شماره 1، فروردین 2021، صفحه 678-687 اصل مقاله (1.01 M) | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.22059/jser.2021.310010.1171 | ||
| نویسندگان | ||
| Alireza Zabihi؛ Iman Sadeghkhani* ؛ Bahador Fani | ||
| Smart Microgrid Research Center, Najafabad Branch, Islamic Azad University, Najafabad 85141-43131, Iran. Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran | ||
| چکیده | ||
| Photovoltaic (PV) systems have been gaining great attention during the last decade. One of the main faults in PV arrays is partial shading, affecting its electrical parameters. Failure to detect this fault may result in optimal generated power reduction and hot spotting leading to damage to cell encapsulant and second breakdown. This paper develops a partial shading detection algorithm that only requires the available measurements of array voltage and current. By quantifying the wave-shape of the super-imposed component of PV array power by the skewness function, it can discriminate a partial shading condition from the short-circuit and high-resistance faults. The developed scheme is implemented in a central intelligent electronic device and does not require a communication link and training data set. The merits of the proposed partial shading detection algorithm are demonstrated through several fault scenarios using a 5×5 grid-connected PV generation system. | ||
| کلیدواژه‌ها | ||
| Fault detection؛ Photovoltaic؛ Partial shading؛ Skewness | ||
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آمار تعداد مشاهده مقاله: 283 تعداد دریافت فایل اصل مقاله: 251 |
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