High-torque cascade type wind turbine generator

Abstract

The invention relates to a high-torque cascade type wind turbine generator which comprises a fan frame body, a positioning bearing, a rotating spindle, at least three rotating blades and a generator, wherein the at least three rotating blades are uniformly fixed and distributed on the spindle wall; a cross section of each rotating blade adopts an angular structure; a triangular baffle plate is arranged at the end part of one end, away from the rotating spindle, of each rotating blade; and an included angle alpha formed by the rotating blades adopting the angular structures ranges from 30 degrees to 90 degrees. The high-torque cascade type wind turbine generator occupies small area and has small requirements for terrain; further, the wind turbine generators can be vertical cascaded to constitute an upright tower type wind turbine generator set; the upright tower type wind turbine generator set can constitute a wind power plant, and the space utilization rate, the land utilization rate and the wind energy utilization rate are higher than those of a conventional wind turbine generator set; and a single wind turbine generator adopts a modularized framework structure, so that the paired wind turbine generators are simple and convenient to assemble.

Description

technical field [0001] The invention relates to power generation equipment, in particular to a high-torque cascadable wind power generator. Background technique [0002] At present, most of the internationally used wind turbines use a three-blade propeller-type wind wheel to rotate and drive the generator to generate electricity; due to the huge diameter of the blades of this three-blade large-diameter wind turbine, the generator needs to be built very high, generally supported The height is 50 to 70 meters, and due to the large radius of rotation of the blades, the distance between two adjacent wind turbines is also very large, the wind turbines occupy a large area, and the direct utilization rate of wind resources is less than 20%; and Due to the huge equipment of the wind-driven generator and the high cost of the whole machine, the installation needs the assistance of large-scale lifting equipment, and the installation cost of the wind-driven generator is huge; moreover, ...

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Problems solved by technology

[0002] At present, most of the internationally used wind turbines use a three-blade propeller-type wind wheel to rotate and drive the generator to generate electricity; due to the huge diameter of the blades of this three-blade large-diameter wind turbine, the generator needs to be built very high, generally supported The height is 50 to 70 meters, and due to the large radius of rotation of the blades, the distance between two adjacent wind turbines is also very large, the wind turbines occupy a large area, and the direct utilization rate of wind resources is less than 20%; and Due to the huge equipment of the wind-driven generator and the high cost of the whole machine, the installation needs the assistance of large-scale lifting equipment, and the installation cost of the wind-driven generator is huge; moreover, the wind-driven generator is often not only one or two, but consists of dozens of sets. For wind farms, it is necessary to find a flat plain or hill to build a wind farm. Therefore, the installation of the wind generator is strictly limited by the location of the installed machine, which affects the popularity and development speed of wind power, a green energy.

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