A high-efficiency vertical-axis savonius wind turbine

Abstract

The invention discloses an efficient vertical shaft Savonius wind turbine which comprises wind turbine end plates, wind turbine blades and a vertical shaft vertically in the center. The upper end plate and the lower end plate are arranged in the manner of being symmetrical about the vertical shaft vertically in the center. Two sets of wind turbine blades are arranged. Each set comprises one staticblade and four moving blades. A supporting rod is arranged on the portion, located on the head and tail connecting portion of each moving blade, of each wind turbine blade. The static blade, the moving blades and the supporting rods of each wind turbine are connected to form a complete semi-cylinder face. The head ends of the two static blades, the tail end of the moving blade on the outmost layer and the center of rotating shafts are located on the same straight line. The concave faces of the two static blades are opposite. Some static blades directly face, any moving blade takes the rotating shaft away from the blade at one end of a center shaft as the center under the effect of wind, a rotating guide shaft at the other end slides freely in a rotating guide rail of each moving blade, and automatic opening and closing of the blades are achieved. Resistance generated by the protruding faces of the blades when facing wind can be reduced, and the efficiency of the wind turbine is improved.

Description

technical field [0001] The invention belongs to the field of vertical axis wind turbines, in particular to a high-efficiency vertical axis Savonius wind turbine. Background technique [0002] With the increasingly serious problems of global warming and environmental pollution, people pay more attention to the development and utilization of renewable energy. The use of renewable energy can reduce the development and impact of conventional energy resources and promote the sustainable development of society. Among the many renewable energy sources that can be developed and utilized, wind energy has attracted much attention because of its large reserves, wide distribution, cleanliness and safety. [0003] Wind energy is a new energy source with great potential, and my country's wind energy has the advantages of large quantity, wide distribution, renewable and non-polluting. Savonius wind turbine is a typical drag-type vertical axis wind turbine. Its advantages are large starti...

AI Technical Summary

Problems solved by technology

However, the existing partial optimization methods have not solved the problem of Savonius wind turbine efficiency reduction due to the drag torque generated when the blades are convex facing the wind.

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