Self-adaptive wind gathering and discharging dual-purpose module capacity-increasing-type wind power generation system

Abstract

The invention provides a self-adaptive wind gathering and discharging dual-purpose module capacity-increasing-type wind power generation system. The system involves a wind gathering cover, a wind collecting mechanism and gathering and discharging conversion mechanisms; the wind gathering cover is of a cylinder shape with the hollowed-out side face; the wind collecting mechanism is located in the center of the wind gathering cover and comprises a fan blade cylinder; the fan blade cylinder comprises a fan blade shaft and fan blades, the lower end of the fan blade shaft is located on an air cylinder lower bearing seat, and the upper end of the fan blade shaft penetrates through an air cylinder upper bearing seat to be connected with an external generator; the fan blades are uniformly arrangedby taking the fan blade shaft as the center along the circumference in a surrounding manner; the three gathering and discharging conversion mechanisms are evenly arranged outside the wind collectingmechanism in the horizontal diameter direction of the wind gathering cover, and a 120-degree windward opening is formed between every two gathering and discharging conversion mechanisms; and an air discharging channel is formed between the gathering and discharging conversion mechanisms and the outer side of the air collecting mechanism, or an air gathering channel is formed between the two gathering and discharging conversion mechanisms in a relatively closed mode. The system can stably operate under 3 levels-17 levels of strong wind, the power generation power is stable, and wind coming fromany direction can act to the maximum extent without searching for wind.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a capacity-increasing wind power generation system of an adaptive wind gathering and discharging dual-purpose module. Background technique [0002] Wind power refers to converting the kinetic energy of wind into electrical energy. Wind is a kind of energy without pollution. Using wind power to generate electricity is very environmentally friendly and can generate huge amounts of electricity. Therefore, more and more countries pay more attention to wind power generation. Wind power generation is one of the most environmentally friendly power generation technologies and has been widely used. The relevant technologies have gradually matured. [0003] The devices required for wind power generation are called wind turbines. This wind turbine can be roughly divided into three parts: wind blades, generators and towers. At present, wind power is dominated by ...

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Problems solved by technology

[0004] (1) Unstable power generation efficiency: Since the wind speed and wind direction are constantly changing during the actual power generation process, once there is a change, the power generation efficiency will be greatly reduced, and sometimes there will be insufficient wind power to generate power, resulting in the inability to generate power in a breeze state And unfavorable factors such as voltage instability caused by changes in wind speed, high and low frequency, loud noise, and abandoned wind, etc., which in turn affect the cost performance of the wind power generation unit;

[0005] (2) The blades are easily damaged: When the wind blades of the wind turbine are subjected to strong winds with a cut-out wind speed of 25m / s or more, the fan will stop by self-locking to avoid the risk of self-destruction due to overspeed. Bending moment, torque, shear strength, and extrusion strength are limited and damaged, and in severe cases, the entire wind blade may fly out;

[0006] (3) Noise hazard: when the huge long wind blades rotate, its noise is unavoidable

[0007] (4) Air pollution: A vortex is easily formed around a certain area around the running wind blades, which leads to the accumulation of smoke and dust, and PM2.5 exceeds the standard, which seriously affects the surrounding environment;

[0008] (5) Limited application: With the gradual exhaustion of high-quality wind resources, wind turbines have to be placed in areas with increasingly poor wind resource conditions. In order to obtain economic benefits from investment, the towers continue to increase. The capacity of a single machine is constantly increasing, so the installation area is severely limited

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