Modular frame type high-efficiency vertical axis wind turbine

Abstract

The invention relates to a modular frame type high-efficiency vertical axis wind turbine. The modular frame type high-efficiency vertical axis wind turbine comprises a wind wheel spindle, a step-up gear box, a permanent magnet synchronous generator, a wind power control cabinet and a peripheral foundation, and is characterized by further comprising a resistance type wind wheel, a force lifting type wind wheel, wind direction flow guide plates and transverse supporting structures; the resistance type wind wheel is mounted on the top of the wind turbine, and the lower part of the resistance type wind wheel is connected with the wind wheel spindle; the force lifting type wind wheel has a three-layer stacked impeller structure, a corresponding section of the wind wheel spindle is arranged in the center of each layer of the force lifting type wind wheel, each layer comprises a plurality of blades, each blade is connected with the corresponding section of the wind wheel spindle through a wind wheel support, and the different sections of the wind wheel spindle are flexibly connected through shaft sleeves; all the blades on the three layers are arranged in a staggered manner, projections of all the blades on the horizontal plane are distributed in a circular area, and the number of the blades in each layer is an odd number; and each wind wheel support comprises a rectangular frame, and one end of each rectangular frame is connected with the wind wheel spindle.

Description

technical field [0001] The invention belongs to the technical field of wind power generation devices in green new energy technology, and relates to a modular frame-type high-efficiency vertical axis wind power machine. Background technique [0002] The mainstream in the field of wind power generation is the horizontal axis wind turbine, but due to the limitation of its own structural characteristics, it has some defects that are not easy to solve, such as the overall unbalanced force, and the wind power generation device weighing dozens or even hundreds of tons in the nacelle. It needs to be hoisted to a tower of tens of meters or even hundreds of meters, making installation and maintenance difficult and costly. Moreover, the tower is subjected to a large overturning moment, and the requirements for the foundation of the tower are relatively high. At the same time, some special terrains such as mountain beam areas with better wind resources are restricted and cannot be trans...

AI Technical Summary

Problems solved by technology

The wind turbine overcomes the disadvantages of low wind energy utilization rate, poor startup performance, high cost, and narrow application range when the vertical axis wind turbine is started in the prior art. type wind rotor, the additional wind deflector structure with a streamlined cross section can change the incoming wind direction at certain azimuth angles of the vertical axis wind turbine on the basis of the existing deflector concentrated wind, and these azimuths The negative torque made by the wind rotor at the angular position is converted into positive torque, which significantly improves the wind energy utilization rate of the vertical axis wind turbine; the lift-type wind rotor with three layers of stacked impeller structure staggered from each other is adopted, and the overall wind turbine A resistance-type wind wheel is installed on the top, which significantly improves the start-up performance of the vertical axis wind turbine

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