EXPERIMENTAL TEST AND SIMULATION ANALYSIS OF FULL SIZE COMBINED BLADE OF 2 MW WIND TURBINE

Gong Shuguang; Jiang Ling; Lu Haishan; Xie Guilan

doi:10.19912/j.0254-0096.tynxb.2023-1486

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (1) : 201-207. DOI: 10.19912/j.0254-0096.tynxb.2023-1486

EXPERIMENTAL TEST AND SIMULATION ANALYSIS OF FULL SIZE COMBINED BLADE OF 2 MW WIND TURBINE

Gong Shuguang, Jiang Ling, Lu Haishan, Xie Guilan

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Abstract

For the wind turbine blade composed of DU+NACA airfoils, based on the analysis of its aerodynamic performance, an experimental test scheme and a finite element simulation analysis model for the full-size blade are constructed. Additionally, a calculation method for load conversion and an experimental test loading mode are proposed. Static tests and natural frequency tests are conducted on the full-size composite blade in four directions: positive flapwise, negative flapwsie, positive edgewise, and negative edgewise. Modal analysis and static strength simulation analysis are also performed. The results indicate that the relative error between the natural frequency obtained from the blade simulation analysis and the measured results is less than 3%. Furthermore, the first natural frequency is close to three times the blade excitation frequency, meeting the dynamic performance requirements of the blade. The strain obtained from the full-scale blade tests follows the same trend as the simulation analysis results, confirming the feasibility of the established full-scale blade test scheme and finite element simulation model. Meanwhile, the designed blade exhibits good aerodynamic performance and a high power coefficient.

Key words

wind turbine blades / finite element analysis / natural frequency test / full size combined blade / static test

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Gong Shuguang, Jiang Ling, Lu Haishan, Xie Guilan. EXPERIMENTAL TEST AND SIMULATION ANALYSIS OF FULL SIZE COMBINED BLADE OF 2 MW WIND TURBINE[J]. Acta Energiae Solaris Sinica. 2025, 46(1): 201-207 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1486

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