Controllable integrated magnetic gear box for high-power wind driven generator

A technology of wind turbines and magnetic gears, applied in electrical components, electromechanical devices, electric components, etc., can solve the problems of inability to apply high-power wind turbines, affecting the popularization and application of wind power generation systems, and small transmission torque of magnetic gears. Light weight, reduced mass, reduced mechanical shock effect

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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  • Controllable integrated magnetic gear box for high-power wind driven generator
  • Controllable integrated magnetic gear box for high-power wind driven generator
  • Controllable integrated magnetic gear box for high-power wind driven generator

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Embodiment Construction

[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0036] Such as figure 1 As shown, the topological structure of the doubly-fed wind power generation system adopted in the present invention includes the wind wheel 7 and its main shaft 71 , the controllable integrated magnetic gearbox of the present invention, the generator coupling 8 and the doubly-fed wind power generator 9 .

[0037] Such as figure 1 , figure 2 As shown, the controllable integrated magnetic gear box of the present invention is a three-stage speed-increasing box, including: a low-speed stage, namely: the first-stage controllable integrated coaxial magnetic gear 1, and a medium-speed stage, namely: the second stage The coaxial magnetic gear 2 is a high-speed stage, that is, the third stage coaxial magnetic gear 3 , and the first shaft coupling 4 , the second shaft coupling 5 , the base 6 and so on. The first driving shaft 11 of the first...

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Abstract

The invention relates to a controllable integrated magnetic gear box for a high-power wind driven generator, which belongs to the field of wind power. The controllable integrated magnetic gear box comprises a first-stage controllable integrated coaxial magnetic gear, a second-stage coaxial magnetic gear, a third-stage coaxial magnetic gear and the like. The first-stage controllable integrated coaxial magnetic gear comprises a first driving shaft, a first driven shaft, a first outer rotor magnetic gear, a first inner rotor magnetic gear and a magnetic adjusting stator; the magnetic adjusting stator comprises a magnetic adjusting iron core block and an armature winding; each of the second-stage coaxial magnetic gear and the third-stage coaxial magnetic gear comprises a driving shaft, a driven shaft, an outer rotor magnetic gear, an inner rotor magnetic gear and a magnetism adjusting ring; the first driving shaft is connected with the wind wheel main shaft; the first driven shaft is connected with a driving shaft of the second-stage coaxial magnetic gear; the driven shaft of the second stage is connected with the driving shaft of the third stage; and the driven shaft of the third stage is fixed with the rotating shaft of the generator. The device is free of lubrication, light in weight, low in operation and maintenance cost, large and controllable in transmission torque and capable of assisting in controlling the rotating speed of a generator and prolonging the service life of a unit.

Description

technical field [0001] The invention relates to a wind power gear box, in particular to a controllable integrated 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 permanent magnet wind power generation system uses a gearbox with a low speed ratio to increase the speed of the generator, thereby reducing the size 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 ge...

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 蔡彬秦清海褚晓广汲柏良
Owner QUFU NORMAL UNIV
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