Coupling-type wind driven generator

Abstract

The invention relates to a coupling-type wind driven generator. The coupling-type wind driven generator is characterized by comprising a base pillar, wherein the base pillar is vertically arranged, and a supporting shaft is arranged at the center of the upper end face of the base pillar. A wheel hub is sleeved on the supporting shaft, and turbine blades are evenly distributed on the outer surface of the wheel hub along the circumferential direction. A spoke is arranged at one axial end of the wheel hub, the wheel hub is supported on the upper end face of the base pillar through the spoke, and the wheel hub is rotatably matched with the supporting shaft. A generator rotor is fixed on the inner side of the wheel hub, a generator stator is fixed on the section, in the wheel hub, of the supporting shaft or on the outer wall of the base pillar, the positions of the generator rotor and the generator stator are corresponding, and the inner diameter of the generator rotor is larger than the outer diameter of the generator stator. The generator is used in matching with an annular wind gathering air channel, on the premise of meeting the requirement of high power, the length of the blade can be effectively shortened, the size of the whole generator is effectively reduced, and the use rate of the wind energy can be improved.

Description

technical field [0001] The invention relates to a wind power generator, specifically a coupled wind power generator that integrates the generator stator / rotor and the wind wheel, which is especially suitable for being installed in an annular air duct for wind power generation, especially the annular wind gathering wind turbine. Tao usage occasions. Background technique [0002] As we all know, in order to reduce the excessive development and utilization of natural resources, countries all over the world pay more attention to the use of wind power to generate electricity. Traditional wind turbines are divided into two categories: horizontal axis and vertical axis. High-power wind turbines are mainly based on the horizontal axis. In order to increase the sweeping area as much as possible, the wind rotor blades of this type of generator often have It is very large, usually the length of a single blade is 60 meters, and the weight reaches about 8 tons, which brings great dif...

AI Technical Summary

Problems solved by technology

Due to the centrifugal blade arrangement and the high velocity of the wind when it enters the engine inlet, in order to convert the powerful wind energy into mechanical energy, the quality of the blades is high and the weight will be heavy. As a result, it is difficult to start at low wind speeds.

In addition, when the upper-stage fan rotates, the synchronization of the tail wind entering the lower stage is poor, which will affect each other. When the blades do work, due to a lot of turbulent flow, the energy loss is serious

Secondly, the multi-stage series connection of the central shaft will also cause the shaft to be too long and heavy, so that the concentricity is difficult to guarantee, the output torque will be affected, and the energy conversion rate will be reduced.

Furthermore, because the blades are too large, there are big problems in design and manufacture, material synthesis, transportation, installation, maintenance, etc.

Images