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Magnetic levitation bearing for wind driven generator

A technology of magnetic levitation bearings and wind turbines, which is applied in wind turbines, wind energy power generation, engines, etc., can solve the problems of large frictional loss of kinetic energy, harsh starting wind speed, and low power output efficiency.

Pending Publication Date: 2017-12-29
江苏无忧投信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And our small wind turbine is a grid-connected solution for families or small teams, but in this generator with a total power generation of less than 10kw, the friction of traditional bearings loses a lot of kinetic energy, making the actual converted electric energy output inefficiency
And under the traditional bearing, the wind kinetic energy must overcome the bearing friction force, so the start-up wind speed requirement is very strict, and most areas do not have wind farms that can meet such conditions for a long time

Method used

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  • Magnetic levitation bearing for wind driven generator
  • Magnetic levitation bearing for wind driven generator
  • Magnetic levitation bearing for wind driven generator

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Embodiment Construction

[0023] The present invention will be further explained below in conjunction with the drawings.

[0024] A magnetic suspension bearing for a wind generator, comprising a top-down thrust disc, a winding keel and a stator. The thrust disc is evenly distributed with a number of positioning holes, and the winding keel is provided with grooves on the side surface. The upper surface of the stator is provided with a plurality of limiting holes, and the lower surface of the stator is provided with an annular groove. The thrust plate is used to connect the blade part. It will be separated from the stator after being energized. The winding keel needs to be wound with copper wire after calculation according to design requirements. After the winding keel is wound, it is put into the stator clock and fixed, the wire is connected from the joint position, and then the stator is connected to the generator part. After the magnetic bearing is energized, the magnetic thrust disc is separated from...

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Abstract

The invention discloses a magnetic levitation bearing for a wind driven generator. The magnetic levitation bearing comprises a thrust disc, a winding keel and a stator which are arranged from top to bottom. A plurality of positioning holes are evenly distributed in the thrust disc. A groove is formed in the side face of the winding keel. A plurality of limiting holes are formed in the upper surface of the stator. An annular groove is formed in the lower surface of the stator. According to the magnetic levitation bearing for the wind driven generator, the magnetic levitation technology is adopted to separate the stator from a rotor, and therefore the fan starting frequency is lowered and friction is reduced; and the bearing can give out electromagnetic force after being powered up so that the rotor can be suspended above the stator.

Description

Technical field [0001] The invention relates to the field of generator-related components, and in particular to a magnetic suspension bearing for a wind generator. Background technique [0002] As a clean energy, wind power is one of the important technologies to replace traditional thermal power and hydropower in my country. Our small wind turbine is a grid-connected solution for families or small teams, but in this generator with a total power generation below 10kw, the friction of traditional bearings loses a lot of kinetic energy, which makes the actual converted electrical energy The output efficiency is low. In addition, the wind kinetic energy under traditional bearings must overcome the friction of the bearing, so the starting wind speed is very demanding, and most areas do not have wind farms that can meet such conditions for a long time. Therefore, the magnetic suspension bearing is designed to suspend the rotor after energization. Reduce friction to the extreme. Su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/70
CPCF03D80/70Y02E10/72
Inventor 朱峰
Owner 江苏无忧投信息科技有限公司