Magnetic floating and magnetic moving horizontal fan shaft windmill electric generating apparatus

Abstract

The invention discloses a magnetically suspended and moved windmill generating device with a horizontal fan axis; a fan rotating ring of a fan rotating body is held in an external structure ring; an external fairing and an internally-rotating fairing not only enlarge the air-inlet area, but also shrink the area of a fan rotating mouth segment, thereby increasing the work wind speed of a rotating fan; the central axes of two internal lateral faces of the external fairing are respectively provided with a fan rotating beam; a fan axis is horizontally arranged between the two fan rotating beams; a caterpillar-type magnetic motion machine on the external structure ring corresponds to a straight-line stator shoe on the fan-rotating body, thereby realizing a non-contact transmission torque, reducing frictional resistance and increasing the generation efficiency of generators. Multiple generators adopted correspond to the fan rotating body, and the number of the generators is determined by the local highest wind speed; the work quantity of accessing (quitting) generators is controlled by a microcomputer and transformed into an alternating current by an inverter and merged into a power system. When the wind direction changes, the microcomputer measures the changed angle according to an anemoscope and controls the magnetic motion machine to rotate for a corresponding angle so that a horn mouth faces the wind from time to time.

Description

technical field [0001] The invention belongs to the technical field of wind power generation. It specifically relates to the technology of permanent magnetic levitation windmill, windmill torque transmission by magnetic motor, and integration of windmill and power generation device. Background technique [0002] At present, the widely used wind turbines are "three-leaf water-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 shortcoming of this technology is: 1, a wind turbine corresponds to a generator, the wind speed is low and can not generate electricity, and the wind speed must adopt " turn the head ", " raise the head ", " turn the nacelle to face the wind angle ", " change pitch. The effect of wind power on windmill blades is actually wasted by means ...

AI Technical Summary

Problems solved by technology

The shortcoming of this technology is: 1, a wind turbine corresponds to a generator, the wind speed is low and can not generate electricity, and the wind speed must adopt " turn the head ", " raise the head ", " turn the nacelle to face the wind angle ", " change pitch. In essence, it is a waste of wind energy; 2. The power generation capacity is low, the world's leading level is 3MW, and the research and development is 7MW

The diameter of the wind rotor of the 3MW wind turbine has reached 130 meters, and the tower height is nearly 80 meters, which is difficult to install and maintain; 3. The wind blades have poor adaptability to surface turbulent wind, and only elevated wind turbines can work effectively; 4. The rotational speed of the shaft is low, and the "tip speed ratio" is too large (that is, the tip line speed of the wind rotor blade is too large), which not only produces a lot of noise, but also reduces the economic life; 5. High cost: 80,000 RMB / kW

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