KIT | KIT-Bibliothek | Impressum | Datenschutz

Thermomechanical design rules for photovoltaic modules

Beinert, Andreas J. 1; Romer, Pascal; Heinrich, Martin; Aktaa, Jarir 1; Neuhaus, Holger
1 Institut für Angewandte Materialien – Werkstoff- und Grenzflächenmechanik (IAM-MMI), Karlsruher Institut für Technologie (KIT)

Abstract:

We present a set of thermomechanical design rules to support and accelerate future (PV) module developments. The design rules are derived from a comprehensive parameter sensitivity study of different PV module layers and material properties by finite element method simulations. We develop a three dimensional finite element method (FEM) model, which models the PV module geometry in detail from busbar and ribbons up to the frame including the adhesive. The FEM simulation covers soldering, lamination, and mechanical load at various temperatures. The FEM model is validated by mechanical load tests on three 60-cell PV modules. Here, for the first time, stress within a solar cell is measured directly using stress sensors integrated in solar cells (SenSoCells®). The results show good accordance with the simulations. The parameter sensitivity study reveals that there are two critical interactions within a PV module: (1) between ribbon and solar cell and (2) between front/back cover and interconnected solar cells. Here, the encapsulant plays a crucial role in how the single layers interact with each other. Therefore, its mechanical properties are essential, and four design rules are derived regarding the encapsulant. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000151605
Veröffentlicht am 19.10.2022
Originalveröffentlichung
DOI: 10.1002/pip.3624
Scopus
Zitationen: 1
Web of Science
Zitationen: 2
Dimensions
Zitationen: 4
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien – Werkstoff- und Grenzflächenmechanik (IAM-MMI)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2022
Sprache Englisch
Identifikator ISSN: 1062-7995, 1099-159X
KITopen-ID: 1000151605
HGF-Programm 38.04.01 (POF IV, LK 01) Gas turbines
Erschienen in Progress in Photovoltaics: Research and Applications
Verlag John Wiley and Sons
Vorab online veröffentlicht am 15.09.2022
Schlagwörter design rules; digital prototyping; FEM simulation; PV modules; stress
Nachgewiesen in Scopus
Web of Science
Dimensions
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page