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Double-air-gap superconductive direct-drive wind power generating set

A wind turbine, double air gap technology, applied in wind turbine components, wind turbine combinations, wind turbines, etc., can solve problems such as transportation difficulties and excessive generator volume, and achieve bearing cost savings, weight reduction and Volume, the effect of improving torque density

Active Publication Date: 2015-04-01
GUODIAN UNITED POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a double-air-gap superconducting direct-drive wind power generator set with higher torque density and smaller volume, so as to overcome the shortcomings of the existing generators that are too large and difficult to transport

Method used

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  • Double-air-gap superconductive direct-drive wind power generating set

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Embodiment Construction

[0033] see figure 1 As shown in the figure, only the main parts and components of the overall structure are marked in the figure, and some fastening bolts and nuts are not marked. The present invention relates to a double-air-gap superconducting direct-drive wind power generator set, which mainly includes: a hub 1, a front bearing sleeve 2, a fixed shaft 3, a hollow rotating shaft 4, a front flange 5, a rotor turntable 6, and a generator casing 7. Outer stator winding 8, outer stator core 9, rotor 10, inner stator core 11, inner stator bracket 12, inner stator winding 13, rotor rear support 14, rear flange 15, frame 16, rotor centering bearing Part cover 17, rear bearing part cover 18, rotor centering bearing bracket 19, slip ring system 20, bushing 21, rotor brake disc 22, rotor brake mechanism 23 and rotor locking device 24.

[0034] The fixed shaft 3 and the frame 16 are fastened and connected by fastening bolts, the front bearing part sleeve 2 and the rear bearing part sl...

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Abstract

The invention relates to a double-air-gap superconductive direct-drive wind power generating set which comprises a rack, a generator shell which is fixed on the rack, a main shaft which is fixedly connected with the rack, a hub which is rotationally supported on the main shaft, a fixedly arranged outer stator, a fixedly-arranged inner stator, and a superconductive rotor which is arranged between the outer stator and the inner stator and interacts with the hub. By the adoption of the structure, the weight and cost of the main shaft are reduced substantially, and efficiency and reliability of a direct-drive wind power generating set are improved.

Description

technical field [0001] The invention relates to the field of wind power generators, in particular to a double-air-gap superconducting direct-drive wind power generator set. Background technique [0002] In the field of direct-drive wind power generation technology, the capacity of direct-drive generators is getting bigger and bigger, and the volume and weight are getting bigger and bigger, especially in the field of megawatt-level high-power direct-drive wind power generation. The weight and volume of traditional direct-drive permanent magnet generators and direct-drive electric excitation generators have become more and more restrictive factors for the development of wind turbine single-unit capacity. [0003] After the direct-drive superconducting synchronous generator is adopted, the rotor winding is composed of superconducting wires with liquid helium or liquid nitrogen as the cooling medium, and the volume and weight of the generator are greatly reduced; at the same tim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D9/00F03D11/00H02K16/00H02K55/00
CPCY02E10/722Y02E40/62Y02E10/72Y02E40/60
Inventor 肖珊彩孔凡兵潘磊
Owner GUODIAN UNITED POWER TECH
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