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Compact semi-direct-drive permanent magnet synchronous wind driven generator

A wind turbine and permanent magnet synchronous technology, applied in the direction of magnetic circuits, electric components, electromechanical devices, etc., can solve the problems of large transmission chain layout space, heavy generator weight, long axial length, etc., to improve manufacturing and assembly Effects of efficiency, weight reduction, and space reduction

Pending Publication Date: 2022-05-13
CRRC XIAN YONGE JIELI WIND ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing semi-direct drive permanent magnet transmission technology, the generator and the gearbox are two independent components, which are coupled together through a coupling. This form of transmission chain has a large layout space, large front and rear chassis, and axial Long length, heavy generator weight and high cost

Method used

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  • Compact semi-direct-drive permanent magnet synchronous wind driven generator
  • Compact semi-direct-drive permanent magnet synchronous wind driven generator
  • Compact semi-direct-drive permanent magnet synchronous wind driven generator

Examples

Experimental program
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Effect test

Embodiment 1

[0042] See Figure 1-15As shown, the present invention provides a compact semi-direct drive permanent magnet synchronous wind turbine, comprising a frame 1 and a generator body mounted on the base 1, the inner wall distribution of the frame 1 useful to cool the core of the stator cooling water sleeve 2, and the cooling water sleeve 2 employs a double helix waterway structure; the top of the frame 1 is provided with an air water cooler for cooling rotor 37 and the end of the stator winding 3; the stator of the generator body is provided with a double Y winding redundant structure, The double Y winding redundancy structure comprises two sets of independent three-phase windings; the rotor 37 of the generator body is installed with a plurality of rotor magnetic pole boxes 4, each of which is a convex pole fan structure; the rear cover of the generator body 8 is integrated with a generator brake 9, a strong electric auxiliary junction box 10, a weak auxiliary junction box 11, a rear co...

Embodiment 2

[0064] The present invention provides for this compact semi-direct drive permanent magnet synchronous wind turbine, see Figure 16-18 , the inner wall of the frame 1, the inner wall of the frame 1 is installed with a double helix water jacket, a core coil assembly 44 and a rotor assembly containing a rotor bracket 13, a magnetic pole box assembly and rotor accessories 43, a highly integrated design of the rear cover 8, a skeleton back cover 15, an integrated strong electrical junction box 42, an air water cooler 3 and other assembly accessories. The whole machine components (including rotor assembly 43, stator assembly, rear cover 8, brake disc 12, generator brake 9, grounding slip ring support ring 45 and ground slip ring 21 adopt vertical assembly. Rotor 37 assembly includes rotor bracket 13, pole box assembly and other rotor accessories, using modular and split pole compression structure design, using modular magnetic box structure, permanent magnet 5 first assembled and then ma...

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Abstract

The invention belongs to the technical field of wind driven generators, and relates to a compact semi-direct-drive permanent magnet synchronous wind driven generator, the motor adopts a structure of double three phases, an outer stator and an inner rotor, a bearing part of the generator is integrated on a gear box, and a high-speed end cover of the gear box and a rear end cover of the generator are integrated into a whole, so that the weight of the generator is reduced, and the service life of the generator is prolonged. The axial sizes of the generator and the gear box can be greatly shortened, the whole transmission structure is compact, and the occupied space is reduced. Meanwhile, the generator stator cooling system adopts a double-helix water jacket structure, and stator heat is taken away through circulating cooling liquid; and an air-water cooler is arranged outside the top of the generator, so that the end parts of the motor rotor and the stator winding are cooled. In addition, the rotor magnetic pole adopts a magnetic pole box structure, and the permanent magnet is firstly assembled and then magnetized, so that the manufacturing and assembling efficiency can be effectively improved.

Description

Technical field [0001] The present invention belongs to the field of wind turbine technology, relates to a semi-direct drive permanent magnet wind turbine, specifically to a compact semi-direct drive permanent magnet synchronous wind turbine. Background [0002] With the development of wind power generation technology, the power of the unit is getting larger and larger, and the cost and reliability are facing unprecedented challenges. Compared with the benchmark electricity price era, various host manufacturers are digging into every detail, relying on management and technology to reduce costs and reduce the cost of wind turbines. In order to meet the needs of the wind power industry to reduce costs and increase efficiency, it is of great significance to optimize the existing technical route structure and develop highly integrated compact wind turbines, which is of great significance to improve the international competitiveness of China's wind power industry, explore new fields ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/28H02K5/20H02K9/04H02K9/19H02K5/22H02K1/274H02K11/40
CPCH02K3/28H02K5/203H02K9/04H02K9/19H02K5/225H02K1/274H02K11/40Y02E10/72
Inventor 段志强米兴社杨杰陈记春俞文斌次元平
Owner CRRC XIAN YONGE JIELI WIND ENERGY CO LTD