Tower and wind generating set

Abstract

The invention provides a tower and a wind generating set. The tower comprises a cylindrical top section, wherein the upper end of the cylindrical top section is connected to a cabin; a special-shapedsection, wherein the special-shaped section is connected to the lower end of the cylindrical top section and is provided with a first front edge part and a first rear edge part opposite to the first front edge part, the special-shaped section can rotate in the circumferential direction of the tower, and a chord line, relative to the first front edge part to the first rear edge part, of the special-shaped section is in an axial symmetry pattern; the first rear edge part protrudes outwardly in a streamlined manner in a direction far away from the first leading edge part to form a first protruding part. According to the invention, vortex-induced vibration can be reduced, the overall stability and safety of the wind driven generator are improved, and resonance and instability of the wind driven generator are prevented. Meanwhile, steel can be saved, the manufacturing process is saved, and a conventional flange can be adopted for connection.

Description

technical field [0001] The invention relates to the technical field of wind power generation, and more specifically, to a tower and a wind power generating set. Background technique [0002] A wind turbine consists of a tower that supports the nacelle and the rotors. Existing towers are generally in the shape of a regular cylinder. When the tower is in the shape of a cylinder, vortex-induced vibration will occur no matter whether it is an onshore wind turbine or an offshore wind turbine. [0003] For onshore wind turbines, as the height of wind turbines increases, the vortex-induced vibration effect of cylindrical towers is increasingly affected by laminar and turbulent air flow, which poses a safety hazard to the operation of wind turbines. In addition, because severe weather such as typhoons regularly occurs every year, for onshore wind turbines that are closer to the coast, fluids such as sea water and strong winds have a strong force on the tower, and the cylindrical to...

AI Technical Summary

Problems solved by technology

In addition, the underwater structure of the wind turbine is under the action of ocean currents and waves for a long time. When the fluid (sea water) flows through the underwater structure of the cylindrical tower, phenomena such as Karman vortex street will occur. The axial force will cause the vibration of the underwater foundation structure, reduce the stability of the underwater foundation, and have an adverse effect on the smooth operation of the offshore wind turbine.

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