MUMBAI, India, June 22 -- Intellectual Property India has published a patent application (202517049730 A) filed by Envision Energy Co. , Ltd. on May 23, 2025, for Calculation Method For Vortex-Induced Resonance Region Of Wind Turbine Blade, And Vortex Suppression Apparatus.
Inventors include Wei, Jiali; Pan, Zhen; Chen, Weiliang; Xu, Bin; and Wang, Chaolun.
The application for the patent was published on June 12, 2026, under issue no. 24/2026.
Abstract: The present invention relates to the technical field of wind power devices. Provided are a calculation method for a vortex-induced resonance region of a wind turbine blade, and a vortex suppression apparatus. The method of the present invention comprises: first, acquiring the natural frequency of a wind turbine blade; then, segmenting the wind turbine blade to obtain a plurality of blade segments; next, separately calculating a vortex shedding frequency of the cross section of each blade segment under different wind speeds or different operating conditions; and finally, comparing the vortex shedding frequency of the cross section of each blade segment under different wind speeds or different operating conditions with the natural frequency, in order to determine a vortex-induced vibration region of the wind turbine blade. In the technical solution, a primary energy injection region of a wind turbine blade where vortex-induced vibration occurs, i.e., a vortex-induced vibration region, is identified, such that a vortex suppression apparatus is mounted in the vortex-induced vibration region, thereby improving the effectiveness of vortex suppression measures, and also reducing the ineffective arrangement of vortex suppression apparatuses, and thus saving costs.
Disclaimer: Curated by HT Syndication.
