Magnetic gear box for high-power wind driven generator

A technology of wind power generators and magnetic gears, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of small transmission torque of magnetic gears, affect the popularization and application of wind power generation systems, and cannot be applied to high-power wind turbines, etc., to achieve Solve the problem of resonance, light weight, effect of size reduction

Inactive Publication Date: 2021-11-16
QUFU NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the transmission torque of existing magnetic gears is small, so it cannot be applied to megawatt-level (MW-level) high-power wind turbines, which affects its popularization and application in wind power generation systems

Method used

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  • Magnetic gear box for high-power wind driven generator
  • Magnetic gear box for high-power wind driven generator
  • Magnetic gear box for high-power wind driven generator

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] Such as figure 1 As shown, the topological structure of the doubly-fed wind power generation system adopted in the present invention includes a wind wheel 7 and its main shaft 71, a magnetic gearbox of the present invention, a generator coupling 8 and a doubly-fed wind power generator 9;

[0030] Such as figure 1 , figure 2 As shown, the magnetic gear box of the present invention is a three-stage gearbox, including: the first stage coaxial magnetic gear 1, the first shaft coupling 4, the second stage coaxial magnetic gear 2, and the second shaft coupling 5 , The third stage coaxial magnetic gear 3, base 6 and so on.

[0031] The structures of the first stage coaxial magnetic gear 1, the second stage coaxial magnetic gear 2 and the third stage coaxial magnetic gear 3 of the present invention are the same, all as image 3 As shown, including: drivin...

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PUM

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Abstract

The invention relates to a magnetic gear box for a high-power wind driven generator, awhich belongs to the field of wind power. The magnetic gear box comprises a first-stage coaxial magnetic gear, a second-stage coaxial magnetic gear, a third-stage coaxial magnetic gear, a first coupler, a second coupler and the like. Each coaxial magnetic gear comprises a driving shaft, a driving shaft bearing, a driven shaft, a driven shaft bearing, a left end plate, a right end plate, a plurality of brackets, an outer rotor magnetic gear, an inner rotor magnetic gear and a magnetic adjusting ring; a driving shaft of the first-stage coaxial magnetic gear is connected with the wind wheel main shaft through a shrinkage sleeve; a driven shaft of the first-stage coaxial magnetic gear is connected with a driving shaft of the second-stage coaxial magnetic gear through a first coupler; a driven shaft of the second-stage coaxial magnetic gear is connected with a driving shaft of the third-stage coaxial magnetic gear through a second coupler, and a driven shaft of the third-stage coaxial magnetic gear is fixed to a rotating shaft of the wind driven generator through a coupler. The device is free of lubrication, small in size, light in weight, large in transmission torque and capable of greatly reducing the operation and maintenance cost and improving the reliability.

Description

technical field [0001] The invention relates to a wind power gear box, in particular to a magnetic gear box for a high-power wind power generator, belonging to the technical field of wind power generation. Background technique [0002] A doubly-fed wind power generation system is mainly composed of a wind rotor, a gearbox, a doubly-fed generator (DFIG), and a converter system. DFIG is a high-speed, small-sized generator. Since the wind rotor operates at low speed, a gearbox with a high speed ratio is usually used to increase the lower speed of the wind rotor to the high-speed generator rotor speed. [0003] The semi-direct drive wind power generation system uses a gearbox with a low speed ratio to increase the speed of the generator, thereby reducing the volume of the semi-direct drive wind power generator. [0004] In view of the above-mentioned defects in the current wind power gearbox, the direct-drive permanent magnet wind power generation system does not use a gearbox,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K49/10H02K7/18
CPCH02K49/106H02K7/1807
Inventor 秦清海蔡彬汲柏良褚晓广
Owner QUFU NORMAL UNIV
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