Magnetic-levitation magnetomotive manoeuvre fan windmill and generating device

Abstract

The invention provides a generating device using a magnetic-levitation magnetomotive manoeuvre fan windmill as power. The windmill is supported by permanent magnetic levitation, and the manoeuvre fan of the windmill increases resistance to wind since rotation of the manoeuvre fan is restricted on a working side so as to push the windmill to rotate; and the manoeuvre fan keeps parallel to the winddirection on a non-working side through rotation so as to minimize the wind resistance. The torsion of the windmill is transferred to a corresponding generator through a plurality of magnetic motors,and a microcomputer controls the access (quit) number of generators (also controls the rotating speed of the windmill) to realize dynamic balance of total generation power of the generators and kinetic energy of the windmill from time to time. The magnetic-levitation magnetomotive manoeuvre fan windmill and the generating device realize the technical effect of converting the wind energy into the kinetic energy in large torsion and micro-resistance.

Description

technical field [0001] The invention belongs to the technical field of wind power generation. Specifically, it relates to the technology of suspending the fan and closing windmill by permanent magnet suspension, converting the wind energy into kinetic energy by the fan-closing windmill, dispersing the kinetic energy of the fan-closing windmill by the magnetic motive and transferring it to several generators, and the generator converting the kinetic energy into electrical energy. . Background technique [0002] At present, the widely used wind turbines are "three-blade horizontal axis wind turbines". It consists of slender rods: blades and towers and a horizontal shaft to form a wind turbine, which converts wind energy into kinetic energy, and is connected to a generator at the end of the horizontal shaft to generate electricity. The disadvantages of this technique are: [0003] 1) A wind turbine corresponds to a generator. If the wind speed is low, it cannot generate elec...

AI Technical Summary

Problems solved by technology

[0003] 1) A wind turbine corresponds to a generator. If the wind speed is low, it cannot generate electricity. If the wind speed is high, you must use methods such as "turning the head", "raising the head", "rotating the windward angle of the nacelle" and "changing the pitch" to reduce the wind force The effect on windmill blades is essentially a waste of wind energy;

[0004] 2. Low power generation capacity, the world's leading level is 3MW, and the research and development is 5MW

The diameter of the wind rotor of the 3MW wind turbine has reached 130 meters, and the tower height is nearly 80 meters. It is difficult to install and maintain;

[0005] 3. The wind blades have poor adaptability to surface turbulent wind, and only elevated wind turbines can work effectively;

[0006] 4. The rotational speed of the shaft is low, but the "tip speed ratio" is too large (that is, the linear speed of the tip of the wind rotor blade is too large), which not only produces a lot of noise, but also reduces the economic life;

[0007] 5. High cost: RMB 8,000 / kW

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