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Non-Uniform Wind Loads Test for Photovoltaic Module
S.-T. Hsu, W.-Y. Lin, C.F. Hsieh
Module, Wind Loads, Non-Uniform
Photovoltaic Modules and BoS Components
Subtopic: PV Module Design, Manufacture, Performance and Reliability
Event: 36th European Photovoltaic Solar Energy Conference and Exhibition
Session: 4BO.11.4
801 - 804
ISBN: 3-936338-60-4
Paper DOI: 10.4229/EUPVSEC20192019-4BO.11.4
0,00 EUR
Document(s): paper, presentation


Typhoon damage to solar photovoltaic (PV) systems is very frequent, but current IEC standards are still limited in mechanical load tests with static uniform forces (IEC 61215-2:2016) or dynamic uniform forces (IEC TS 62782:2016), lacking a test method in which uneven wind pressure is applied to a PV module. In order to understand the impact of strong winds on PV modules, this study first developed a non-uniform dynamic mechanical load (NUDML) system that simulates different wind levels. Second, establish the mean surface pressure pattern (MSPP) required for the severity test, taking into account the effects of different environmental factors such as wind speed (V), wind direction angle () and module tilt (). The experimental results show that in the two dynamic test cases of uneven force and equivalent average force, the former has a significant performance loss (e.g., Pmax) on the tested module, and can also evaluate the stress intensity of the bracket or fastener quickly.