Movable wing-type lifting high-power vertical axis wind turbine

Abstract

The invention discloses a vertical axis lifting wind turbine applied to the field of wind power utilization. The invention aims at overcoming the defects of instable structure and poor security under super-strong wind when the power of a vertical axis wind wheel is high. In order to realize safe survive of a large-size blade in shutdown under a dangerous high wind speed, a blade can automatically adjust an angle into a downwind direction along with a wind direction by adopting a special structure, so the blade has the minimal windiness area and the minimal resistance. A supporting arm is long, the blade is heavy and the load of the supporting arm is large when the power is high. The gravity of a wind wheel is transferred to an annular orbit through supporting legs and roller by adopting the solution of adding a pivot and a track, the pivot periodically moves along with the arm; the cross arm is wrapped by a wing to generate lift force to offset a part of gravity; the outer surface of each supporting leg moving along with the cross arm is made into a blade wing and also can provide power; and a resistance wind wheel is added above the base of the supporting arm, at the center of the wind turbine, so a root point of a stay cable is heightened, the tensile force of the stay cable is ensured, and the start moment and the operation power of the overall wind wheel can be increased.

Description

[0001] Moving wing lift type high power vertical axis wind turbine technical field [0002] The invention belongs to the field of wind energy utilization, and relates to the technology of a vertical axis wind power generator, in particular to a lift type high power vertical axis wind power machine technology with movable blades. [0003] Background technique [0004] The wind wheel is a device that converts wind energy into mechanical energy. It is the key to the performance of the wind turbine and the focus of engineering application improvement research. The focus of wind wheel research is the blade and its arm structure. [0005] Wind turbines are divided into two categories: horizontal axis and vertical axis. Vertical axis wind turbines (referred to as vertical axis wind turbines) are divided into two types: drag type and lift type. The lift type is more efficient, and the most efficient and most common is the H-type lift type. What the present invention studies is al...

AI Technical Summary

Problems solved by technology

[0011] The existing vertical shaft machines are all long hubs, the hubs are as long as the blades are, and the H-type and Φ-type machines have this feature, resulting in large shaking , poor stability, heavy weight, difficult processing, high cost

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