Vertical axis wind turbine and turning radius adjusting mechanism of paddles of vertical axis wind turbine

Abstract

The invention discloses a turning radius adjusting mechanism of paddles of a vertical axis wind turbine. The paddles are distributed on the same circumference, the turning radius adjusting mechanism further comprises a power component and actuating components, the power component consists of a power component body and a vertical tube component, fan hub shells are symmetrically disposed at the upper end and the lower end of the vertical tube component, the power component body is disposed in the vertical tube component, a power device in the power component body can drive two vertical output shafts to rotate, the vertical output shafts are arranged on the upper side and the lower side of the power device respectively, one end, which is far away from the power device, of each of the two vertical output shafts extends into the corresponding fan hub shell, driving bevel gears are sleeved at both extending ends of the two vertical output shafts, and the actuating components are symmetrically arranged on the two fan hub shells and are horizontally disposed. By the aid of the turning radius adjusting mechanism, the turning radius of each paddle can be adjusted as needed, the turning radius adjusting mechanism is favorable for improving the stability of generated power of the vertical axis wind turbine, safety of the vertical axis wind turbine with high load and applicability of the vertical axis wind turbine to conditions with different wind speeds and expanding application range of the wind speed, and the shortcoming that the turning radius of a paddle cannot be adjusted by a traditional structure is overcome. In addition, the turning radius adjusting mechanism is simple in structure, convenient in manufacture and applicable to large-scale popularization and application in the field of vertical axis wind turbines, and has excellent technologic and economic benefits.

Description

technical field [0001] The invention belongs to the field of vertical-axis wind-driven generators, and in particular relates to an adjustment mechanism for the radius of gyration of blades of the vertical-axis wind-driven generator and the vertical-axis wind-driven generator. Background technique [0002] The radius of gyration of the vertical axis wind turbine blade is the radius from the blade to its center of gyration. At present, the gyration radius of the vertical axis wind turbine blade has been determined at the time of design and cannot be adjusted, and the set radius of gyration value It is closely related to the rated wind speed, cut-out wind speed and the rated power of the wind turbine. In addition, the output power of the wind turbine is positively correlated with the actual radius of gyration of the blades and the actual wind speed. During daily operation, we found that the actual wind speed is often quite different from the rated wind speed and cut-out wind s...

AI Technical Summary

Problems solved by technology

[0004] When the actual wind speed is between the rated wind speed and the cut-out wind speed, due to the limitation of motor capacity and other factors, it is necessary to stabilize the output power of the wind turbine near its rated power, and the existing structure cannot adapt to the actual wind speed. Adjust the radius of gyration of the blades accurately, which will lead to a large deviation between the output power of the wind turbine and its rated power, which will have a large impact on the power grid

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