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Evaluation of non-uniform mechanical loads on solar modules

: Dietrich, S.; Zeller, U.; Pander, M.; Ebert, M.


Institute of Electrical and Electronics Engineers -IEEE-; IEEE Electron Devices Society; Institute of Electrical and Electronics Engineers -IEEE-, Power & Energy Society -PES-:
39th IEEE Photovoltaic Specialists Conference, PVSC 2013 : Tampa, Florida, USA, 16.06.2013-21.06.2013
Piscataway, NJ: IEEE, 2013
ISBN: 978-1-4799-3299-3
Photovoltaic Specialists Conference (PVSC) <39, 2013, Tampa/Fla.>
Fraunhofer CSP ()

Solar Modules are subjected to wind loads, leading to a non-uniform pressure distribution across the module. By means of CFD simulations the pressure profile was calculated. The pressure was transferred to a mechanical simulation calculating the stresses in the glass and solar cells. Applying a reliability concept for brittle materials the probability of failure of glass and cells was evaluated. A parameter study was carried out changing the inclination of the module as well as the wind direction.