Power loss and hotspot analysis for photovoltaic modules affected by potential induced degradation

Autor:	Mahmoud Dhimish, Andy M. Tyrrell
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	npj Materials Degradation, Vol 6, Iss 1, Pp 1-8 (2022)
Druh dokumentu:	article
ISSN:	2397-2106
DOI:	10.1038/s41529-022-00221-9
Popis:	Abstract Potential-induced degradation (PID) of photovoltaic (PV) modules is one of the most severe types of degradation in modern modules, where power losses depend on the strength of the electric field, the temperature and relative humidity, and the PV module materials. Previous studies have only considered single effects of PID; however, this work investigates the power losses, development of hotspots, mm-level defects, and the performance ratio (PR) of 28 PID affected PV modules. Following a standard PID experiment, it was found that (i) the average power loss is 25%, (ii) hotspots were developed in the modules with an increase in the surface temperature from 25 to 45 °C, (iii) 60% of the examined PV modules failed the reliability test following IEC61215 standard, and (iv) the mean PR ratio is equivalent to 71.16%.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/a99fa6a7f6ec4b53aa519132f2a3c067 Zobrazit plný text záznamu Full text from SpringerLink View record in DOAJ