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Performance of shingled solar modules under partial shading

Klasen, Nils; Weisser, Daniel; Rößler, Torsten; Neuhaus, Dirk Holger; Kraft, Achim

Abstract:

Significant progress in the development and commercialization of electrically conductive adhesives has been made. This makes shingling a very attractive approach for solar cell interconnection. In this study, we investigate the shading tolerance of two types of solar modules based on shingle interconnection: first, the already commercialized string approach, and second, the matrix technology where solar cells are intrinsically interconnected in parallel and in series. An experimentally validated LTspice model predicts major advantages for the power output of the matrix layout under partial shading. Diagonal as well as random shading of a 1.6-m2 solar module is examined. Power gains of up to 73.8 % for diagonal shading and up to 96.5 % for random shading are found for the matrix technology compared to the standard string approach. The key factor is an increased current extraction due to lateral current flows. Especially under minor shading, the matrix technology benefits from an increased fill factor as well. Under diagonal shading, we find the probability of parts of the matrix module being bypassed to be reduced by 40 % in comparison to the string module. ... mehr


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Originalveröffentlichung
DOI: 10.1002/pip.3486
Scopus
Zitationen: 13
Web of Science
Zitationen: 11
Dimensions
Zitationen: 14
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Werkstoff- und Biomechanik (IAM-WBM)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 04.2022
Sprache Englisch
Identifikator ISSN: 1062-7995, 1099-159X
KITopen-ID: 1000142090
Erschienen in Progress in photovoltaics
Verlag John Wiley and Sons
Band 30
Heft 4
Seiten 325-338
Vorab online veröffentlicht am 08.11.2021
Nachgewiesen in Web of Science
Scopus
Dimensions
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