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A sensitivity analysis of the stepwise measurement procedure for the characterization of large area PV modules

: Rapp, C.; Steiner, M.; Siefer, G.; Bett, A.W.

Fulltext urn:nbn:de:0011-n-4043678 (2.0 MByte PDF)
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Created on: 7.10.2016

Solar energy 127 (2016), pp.96-108
ISSN: 0038-092X
ISSN: 0375-9865
Bundesministerium für Wirtschaft und Technologie BMWi
0325485D; CPV-Magnu
European Commission EC
"A new generation of concentrator photovoltaic cells, modules and systems"
Journal Article, Electronic Publication
Fraunhofer ISE ()
Materialien - Solarzellen und Technologie; Photovoltaik; III-V und Konzentrator-Photovoltaik; III-V Epitaxie und Solarzellen; module; PV module; characterization

A major issue in the characterization of photovoltaic modules is the limitation of the homogenously irradiated area provided by the available sun simulators. Therefore the Stepwise Measurement Procedure for the Characterization of Large-area PV Modules (SMP) was developed recently. This concept enables the characterization of modules with aperture areas larger than the area provided by a given sun simulator. In previous investigations the procedure demonstrated good applicability and high accuracy. In a real application environment, however, conditions like temperature and stray light might influence the measurement. Also, particular variations within a module like e.g. defective cells may lead to higher uncertainties for the results of the SMP. Therefore, an investigation of the impact of these factors on the accuracy of the procedure is performed. The results show that the impact of most factors can be minimized and even eliminated. Therefore, recommendations for the practical application are given.