Variable pitch vertical axis wind turbine

Abstract

The invention relates to a vertical axis wind turbine. Wind paddles in vertical N layers are arranged on a hub of a vertical shaft, wherein the N is an integer from 1 to 6; N1 paddle groups are arranged on the wind paddles in each layer, wherein the N1 is an integer from 1 to 6; N2 paddle blades are arranged on each paddle group, wherein the N2 is an integer from 1 to 6; and each paddle blade is a rectangular revolving door type flat blade, and the direction of each blade is changed by means of automatic pushing of the wind direction and the wind force. The paddle groups in a first phase area and a fourth phase area are positioned at the operating phase positions and are identical to supporting frame rods of the paddle groups in direction, the paddle groups rotating into a second phase area are positioned at the half-operating area and are perpendicular to the supporting frame rods of the paddle groups, and the blades are automatically parallel to and kept consistent with the wind direction when the paddle groups rotate into a third phase area. The rotating diameter of an impeller of the wind turbine is adjusted mechanically to enable the rotating speed of the wind turbine to be basically stable. The variable-paddle type vertical axis wind turbine has a safe, reliable and automatically-adjusted control device, so that the windward areas of the wind blades are automatically adjusted along with increase of the wind speed, and further the rotating speed of the wind turbine is kept constant and unchanged.

Description

technical field [0001] The invention relates to the technology of vertical axis wind power generators, in particular to the field of variable pitch blade type vertical axis wind power generators. Background technique [0002] Wind energy is an inexhaustible renewable emerging green energy. Since entering this century, energy has become increasingly tense. Countries and governments around the world have raised the wind power industry to an important position, vigorously promoting and supporting it. However, at present domestic wind power generation is dominated by horizontal-axis spiral wind turbines. Although the oldest wind turbines from Europe have been improved by the most advanced modern technology, they are still quite expensive, difficult to manufacture and install, and the utilization rate of wind is very low. Low, high noise, high requirements on the wind field. For this reason, all countries are developing new wind turbine technology, and the direction is the ver...

AI Technical Summary

Problems solved by technology

This system is too complicated and requires high manufacturing and installation precision. It is difficult to guarantee the accuracy of mechanical wear during operation and it is difficult to operate for a long time.

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