Self-adaptive adjustment efficient vertical shaft Savonius wind turbine

Abstract

The invention discloses an efficient vertical shaft Savonius wind turbine with a self-adaptive adjustment function. The efficient vertical shaft Savonius wind turbine comprises an upper end plate, a lower end plate, a wind facing bent shaft, a folding blade I and a folding blade II. The folding blade I and the folding blade II are installed in an upper sliding groove I and an upper sliding groove II located in the upper end plate and a lower sliding groove I and a lower sliding groove II located in the lower end plate respectively, and folding pieces forming the folding blade I and the folding blade II can move along the upper sliding groove I, the lower sliding groove I, the upper sliding groove II and the lower sliding groove II through sliding shafts. The positioning of the cam is realized through the automatic opposite adjustment of the windward bent shaft, and then the folding blade I and the folding blade II are regulated and controlled through the sliding shaft connected with the folding sheet, farthest away from the vertical section of the windward bent shaft, of the folding blade I and the folding blade II, so that the folding blade I and the folding blade II are folded to the maximum extent when the convex surface is windward, the windward area is reduced, and the windward effect is improved. The resistance moment is further reduced; the concave surface is spread to the maximum extent when facing the wind, and the maximum windward area is achieved, so that the wind energy utilization rate is increased, and the wind turbine performance is improved.

Description

technical field [0001] The invention belongs to the field of vertical axis wind turbines, in particular to an adaptively adjusted high-efficiency vertical axis Savonius wind turbine. Background technique [0002] With the development of human society and the advancement of science and technology, environmental issues and energy demands are facing enormous challenges. As a renewable clean energy, wind energy has abundant resource reserves and a wide distribution range, which can alleviate the greenhouse effect caused by traditional energy sources, and has attracted the attention of various countries. [0003] There are various forms of wind energy utilization. With the development of the electric power industry, the current main form of utilization is wind power generation. Wind turbines can be divided into horizontal axis wind turbines and vertical axis wind turbines according to the arrangement of the rotating shaft, among which Savonius wind turbine is a typical resistanc...

AI Technical Summary

Problems solved by technology

However, the existing technical methods have not solved the problem that the efficiency of the Savonius wind turbine is reduced due to the drag torque generated when the blades are convex.

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