一种非贯通变预应力风电塔架
By dividing the lattice wind turbine tower into upper and lower sections and arranging them in a staggered manner, and applying prestress to each section, the problems of material waste and insufficient load-bearing capacity of existing lattice wind turbine towers when the blade length increases are solved, achieving efficient material utilization and improved tower stiffness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA INST OF BUILDING STANDARD DESIGN & RES
- Filing Date
- 2025-09-29
- Publication Date
- 2026-07-17
AI Technical Summary
With the increase in blade length, existing lattice wind turbine towers have problems such as excessive steel tower wall thickness, local resonance, and difficulties in processing and installation due to the increased steel tower length. In addition, the prestress requirements of the straight section and the extended foot section are not matched, resulting in material waste and insufficient load-bearing capacity.
The non-through variable prestressed wind turbine tower is adopted, and the lattice tower is divided into upper and lower sections, which are staggered and connected by conversion web members. The upper and lower sections of the lattice tower are rotated 45° and staggered, and different levels of prestress are applied to each section. The cross section of the tower body expands rapidly below the blade tip and contracts near the blade tip.
It improved the tower's load-bearing efficiency and stiffness, saved on prestressed cables and tower column materials, optimized material usage, and met the increased load-bearing capacity and stiffness requirements of the tower due to the increased blade length.
Smart Images
Figure CN224515307U_ABST