A vertical axis inner rotor magnetic levitation wind power generator

A wind turbine and inner rotor technology, which is applied to wind turbines, wind turbine combinations, wind turbines at right angles to the wind direction, etc., can solve the problems of inability to generate electricity, high system power consumption, low wind power conversion efficiency, etc. Low, eliminates mechanical contact friction, and has the effect of simple structure

Active Publication Date: 2017-07-28
SHANDONG UNIV OF SCI & TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The wind power generators in the prior art have the following disadvantages: the cut-in wind speed is 3m / s, and cannot generate electricity when the wind speed is small or light wind; the system power consumption is high, making the conversion efficiency of wind power low; Collision and friction easily occur between rotor and stator

Method used

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  • A vertical axis inner rotor magnetic levitation wind power generator
  • A vertical axis inner rotor magnetic levitation wind power generator

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Embodiment

[0017] Embodiment: a vertical axis inner rotor magnetic levitation wind power generator.

[0018] The radially magnetized permanent magnet ring array 23 on the rotor is located at the lower position of the radially magnetized permanent magnet ring array 12 on the stator. The lower radially magnetized permanent magnet ring array 25 is located at the lower position of the radially magnetized permanent magnet ring array 14 under the stator. The magnetized permanent magnet 17 and the rotor axially magnetized permanent magnet 28 are cylindrical, and the same poles are opposite, and an upward axial permanent magnetic repulsion is generated on the rotor 2, and the resultant force of the axial permanent magnetic repulsion can overcome the rotor 2 and the wind wheel device. 3 gravity, the resultant force of the radial permanent magnetic repulsion can weaken the radial swing force, realize the non-contact suspension of the rotor 2 in the axial and radial directions, and then use the upp...

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Abstract

The present invention relates to a wind power generator, in particular to a vertical shaft inner rotor magnetic levitation wind power generator. Including the stator (1), the rotor (2), and the wind wheel device (3), the repulsion between the radially magnetized permanent magnet ring array (23) on the rotor and the radially magnetized permanent magnet ring array (12) on the stator is adopted Force, the repulsive force between the radially magnetized permanent magnet ring array (25) under the rotor and the radially magnetized permanent magnet ring array (14) under the stator, the stator axially magnetized permanent magnet (17) and the rotor axially magnetized permanent magnet ( 28) to establish a five-degree-of-freedom magnetic levitation state, and use the upper radial adjustment coil (11) and the lower radial adjustment coil (15) to dynamically adjust the radial position of the rotor (2). This structure solves the problem of stable magnetic levitation of wind power generators under low power consumption, has the advantages of low starting wind speed and reliable operation, and lays the foundation for the realization of light wind start and light wind power generation.

Description

technical field [0001] The present invention relates to a wind power generator, in particular to a vertical shaft inner rotor magnetic levitation wind power generator. The wind turbine can be widely used in urban and rural road lighting, garden lighting, landscape lighting, advertising light boxes, traffic lights, road speed measurement power supply, unattended monitoring equipment and various power supply needs away from the power grid. Background technique [0002] The market potential of wind power generation is huge. China's wind energy reserves are large and widely distributed, laying a good foundation for the development of wind power generation in my country. Under the background of the country calling for vigorous development of clean energy, wind power generation has entered a period of rapid development. The wind power generators in the prior art can be classified into two categories: horizontal axis wind power generators and vertical axis wind power generators. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D9/25F03D3/06H02K7/18H02K1/27H02N15/00
CPCY02E10/74
Inventor 孙传余文艺成肖林京李波
Owner SHANDONG UNIV OF SCI & TECH
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