Device for reducing wind load of wind turbine and wind turbine

Abstract

The invention discloses a device for reducing the wind load of a wind turbine and the wind turbine. The device comprises a windward plate, a wake flow guide plate and a fixing seat which are arranged at the outer side of a tower drum of the wind turbine, the windward plate is fixedly connected with the wake flow guide plate through a plurality of reinforcing pieces, the fixing seat is arranged on a reference seat of the wind turbine, and the windward plate is rotationally connected with the fixing seat. According to the device for reducing the wind load of the wind turbine and the wind turbine, the wind load of the wind turbine can be reduced, the tower drum is protected, the whole wind turbine is prevented from collapsing, and the service life of the wind turbine is prolonged.

Description

technical field [0001] The invention relates to a device for reducing the wind load of a wind turbine and the wind turbine, and belongs to the technical field of wind load reduction devices for the wind turbine. Background technique [0002] With the rapid development of the wind power industry, wind turbines have gradually become more powerful and towering, accompanied by the characteristics of large loads and ultra-high and thin towers. For such typical wind-sensitive structures, the wind turbine tower must ensure its rigidity, strength and stability without a large increase in consumables, and at the same time prevent the overall collapse of the wind turbine. Therefore, appropriate engineering structural measures are taken for wind turbines, and local thickening is carried out in places where the tower is easily damaged or may collapse, so as to reduce the loss of tower materials, and at the same time reduce the adverse effects of tail flow and vortex, thereby reducing th...

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Problems solved by technology

[0003] At present, increasing the size and wall thickness of the tower and changing the shape of the tower are one of the main solutions, but increasing the size and wall thickness of the tower will greatly increase the consumables. In addition, changing the shape of the tower also has many disadvantages, such as the need to make special-shaped formwork , which increases the difficulty of construction. The most serious thing is that because the tower does not change with the wind direction, the randomness of the wind direction will sometimes increase the wind load of the new tower structure, and even cause the wind turbine to lose its stability and collapse, which is harmful to the society. Economic and security adverse effects

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