High-power hybrid wind power gear box

A wind power gearbox and hybrid technology, applied in the direction of electric components, electromechanical devices, electrical 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 Good transmission stiffness, improved system performance and reliability, and light weight

Pending Publication Date: 2022-03-01
QUFU NORMAL UNIV
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  • 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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  • High-power hybrid wind power gear box

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] 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 high-power hybrid wind power gearbox of the present invention, a generator coupling 8 and a doubly-fed wind power generator 9;

[0029] Such as figure 1 , figure 2 As shown, the high-power hybrid wind power gearbox of the present invention adopts one-stage planetary two-stage coaxial magnetic gear transmission, and is a three-stage speed-up gearbox, including: a low-speed mechanical planetary gear 1, a first coupling 4, a middle Speed ​​level coaxial magnetic gear 2, second shaft coupling 5, high speed level coaxial magnetic gear 3, machine base 6, etc.

[0030] Such as image 3 As shown, the low-speed mechanical planetary gear 1 of the present invention includes: a pl...

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Abstract

The invention relates to a high-power hybrid wind power gear box, and belongs to the field of wind power. The gearbox comprises a low-speed-level mechanical planetary gear, a medium-speed-level coaxial magnetic gear, a high-speed-level coaxial magnetic gear, a first coupler, a second coupler and the like. The mechanical planetary gear comprises a planet carrier, a planet wheel, a gear ring, a sun wheel and an output shaft; each coaxial magnetic gear comprises an outer rotor magnetic gear, an inner rotor magnetic gear, a magnetic adjusting ring, a driving shaft, a driven shaft and the like. A planet carrier of the low-speed-level mechanical planet gear is connected with a wind wheel main shaft through a shrinkage sleeve, and an output shaft of the low-speed-level mechanical planet gear is connected with a driving shaft of the medium-speed-level coaxial magnetic gear through a first coupler; the medium-speed driven shaft is connected with a driving shaft of the high-speed coaxial magnetic gear through a second coupler, and the high-speed driven shaft is fixed to a rotating shaft of the wind driven generator through a coupler. The device does not need a complex and heavy oil injection lubrication cooling system, is low in energy consumption, light in weight, simple and convenient to operate and maintain, can greatly reduce the operation and maintenance cost, and is particularly suitable for doubly-fed and semi-direct-driven wind driven generators.

Description

technical field [0001] The invention relates to a wind power gearbox, in particular to a high-power hybrid wind power gearbox, which belongs 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] However, the existing gearboxes use mechanical gear meshing, especially high-speed gears running in high-speed meshing rotation, which require a complex oil-filled lubrication ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K49/10H02K1/2783H02K1/2792H02K1/30H02K7/116H02K7/10
CPCH02K49/106H02K1/278H02K1/2786H02K1/30H02K7/116H02K7/10
Inventor 蔡彬褚晓广秦清海汲柏良
Owner QUFU NORMAL UNIV
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