Controllable blade surface movement velocity and direction lift-force type vertical shaft wind force generating device

Abstract

The invention relates to a controllable blade surface movement velocity and direction lift-force type vertical shaft wind force generating device comprising a blade, an empennage and a wind wheel-driving electric machine main shaft, wherein the blade is a blade being capable of regulating an attack angle and controlling surface movement velocity and direction; the regulating of the blade attack angle and the control of the surface movement velocity and direction are realized by a regulation and control device. The regulation and control device has a structure that the empennage drives a cam path, and the cam path drives a link mechanism; the link mechanism drives the blade to change the attack angle formed by the blade and incoming flow along with the change of a rotation phase, and the change of the movable surface rotating speed and the rotating direction on the controllable blade is controlled while the attack angle is changed so as to realize that the blade restrains flow separation and increase the lift force under a big attack angle during the rotating process so as to effectively increase the wind energy use ratio. The wind force generating device can increase the wind energy use ratio of wind machines, is suitable for any incoming flow wind direction and has simple structure and easy realization.

Description

technical field [0001] The invention relates to a wind power generation device, in particular to a lift type vertical shaft wind power generation device which is suitable for any wind direction and can control the speed and direction of blade surface movement to increase the output torque. technical background [0002] Wind energy is the fastest-growing clean energy among renewable energy sources, and it is also the most promising power generation method for large-scale development and commercialization. Over the past ten years, the world's wind power has grown at a rate of more than 30%. With the rapid development of the world's wind power industry, my country is also paying more and more attention to the development of the wind power industry. The promulgation of the "Renewable Energy Law" in February 2005 marked that my country's energy strategy has entered a new period. At the same time, the National Development and Reform Commission also proposed the layout of high-pow...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to solve the above fundamental problems and provide a lift-type vertical axis wind power generation device with controllable blade surface motion speed and direction to control the blade surface motion speed and direction to suppress the separation of airflow at large angles of attack, thereby improving the performance of the wind turbine. Wind Energy Utilization Rate

Images