Series resistance determination and further characterization of c-Si PV modules

Autor:	Ole-Morten Midtgard, Georgi Hristov Yordanov, Tor Oskar Saetre
Rok vydání:	2012
Předmět:	Materials science Equivalent series resistance Renewable Energy Sustainability and the Environment Saturation current Estimation theory Open-circuit voltage Electronic engineering Biological system Characterization (materials science)
Zdroj:	Renewable Energy. 46:72-80
ISSN:	0960-1481
Popis:	This paper presents a new algorithm for determination of the series resistance of crystalline-Si PV modules from individual illuminated I–V curves. The ideality factor and the reverse saturation current are then extracted in the classic way. The approach is applied to in-situ measured data from modules based on two types of mc-Si feedstock. The results indicate that the method yields physically meaningful parameters. An improved definition of local ideality factor is suggested, resulting in m-V plots unaffected by the series resistance. In addition, m-I plots are introduced for the first time. The novel differential techniques reveal an unexpected rise of the ideality factor at open circuit by about 5%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8174c11c4e1810d3ef97237085526dbb https://doi.org/10.1016/j.renene.2012.03.012 Zobrazit plný text záznamu Full Text from ScienceDirect