Stress Analysis and Optimization of Photovoltaic Supports in Severe Cold Regions
As an important component of photovoltaic systems,the structural design of photovoltaic brack-ets is crucial.In order to improve the safety and economy of photovoltaic brackets in severe cold areas,finite element simulation method is used to conduct parametric analysis and optimized design of typical photovoltaic projects in Daqing City.The main focus is to explore the effects of different structural param-eters such as the spacing between purlins,the number of columns,and the spacing between front and rear columns on the stress performance of the support.The results show that the deflection of the support is negatively correlated with the spacing between purlins and the number of columns,and shows a trend of first increasing and then decreasing with the spacing between front and rear columns.The trend of crit-ical load variation is exactly opposite to that of support deflection variation.The optimal optimization plan is obtained:using a purlin spacing of 20％of the length of a single photovoltaic panel,a column spacing of 60％of the horizontal projection of the inclined beam,additional inclined support for the middle in-clined beam,and a cross-sectional thickness of 2 mm thick support bracket optimization design.This optimization scheme can reduce the deflection of the bracket by 71％.
photovoltaic bracketforcefinite element analysisdeflectionoptimization
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