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Wind power generation unit

A technology for wind turbines and nacelles, which is applied in the field of wind power and can solve problems such as cable service life reduction, cable installation and construction, maintenance troubles, and increased cable weight, so as to prolong service life, reduce torsion resistance, and reduce gravity stretching. Effect

Active Publication Date: 2017-10-17
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used twisted cable protection devices are all fixed on the cable. Since the height of the tower is generally above 70 meters, multiple twisted cable protection devices are usually installed at intervals, which will not only increase the weight of the cable, but also increase the strength of the cable. Installation, construction, inspection and maintenance have brought troubles, and the cable has been subjected to gravity for a long time (considering the weight of the battery core and the outer sheath of the cable is relatively large), which will lead to a decrease in the service life of the cable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like figure 1 and image 3 As shown, Embodiment 1 of the present invention provides a wind power generating set, including a tower 10 and a nacelle 20, the nacelle 20 is installed on the top of the tower 10, and a yaw bearing 30 is installed between the nacelle 20 and the tower 10, so that the nacelle 20 can rotate on the tower tube 10;

[0038] A rotating shaft 40 coaxially arranged with the yaw bearing 30 is installed on the lower part of the nacelle 20, and two or more sets of mutually insulated planetary gears 50 are installed on the rotating shaft 40, and the ring gears of each set of planetary gears 50 are installed in the tower 10;

[0039] The power cables in the nacelle 20 communicate with the corresponding power cables in the tower 10 through one set of planetary gears 50 .

[0040] The rotating shaft 40 rotates with the yaw motion of the nacelle 20, and then drives the planetary gears 50 on the rotating shaft 40 to mesh and drive. Since the planetary gears ...

Embodiment 2

[0055] like figure 2 As shown, Embodiment 2 of the present invention provides a wind power generating set, including a tower 10 and a nacelle 20, the nacelle 20 is installed on the top of the tower 10, and a yaw bearing 30 is installed between the nacelle 20 and the tower 10, so that the nacelle 20 can rotate on the tower tube 10;

[0056] A rotating shaft 40 coaxial with the yaw bearing 30 is installed on the upper part of the tower 10, and two or more sets of mutually insulated planetary gears 50 are installed on the rotating shaft 40, and the ring gear of each set of planetary gears 50 is installed in the nacelle 20;

[0057] The power cables in the nacelle 20 communicate with the corresponding power cables in the tower 10 through one set of planetary gears 50 .

[0058] In this embodiment, the ring gear 53 of the planetary gear 50 rotates with the yaw motion of the nacelle 20, and then drives the planetary pinion 52 of the planetary gear 50 to mesh and drive, and the ele...

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PUM

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Abstract

The embodiment of the invention provides a wind power generation unit which comprises a tower tube and an engine room. The engine room is installed at the top of the tower tube, and a yaw bearing is installed between the engine room and the tower tube so that the engine room can rotate on the tower tube; a rotary shaft arranged coaxial with the yaw bearing is installed on the lower portion of the engine room, and two or more sets of planetary gears which are insulated with each other are installed on the rotary shaft; and gear rings of each set of the planetary gears are installed in the tower tube, and electric power cables in the engine room communicate with corresponding electric power cables in the tower tube one to one through one set of the planetary gears. According to the wind power generation unit provided by the embodiment of the invention, the electric power cables in the engine room can convey power to the corresponding electric power cables in the tower tube through the planetary gears, thus in the engine room yawing process, the electric power cables in the tower tube cannot reverse along with engine room yawing, and the electric power cables are conveniently directly fixed to the inner wall of the engine room.

Description

technical field [0001] The invention belongs to the technical field of wind power, and in particular relates to a wind power generating set. Background technique [0002] At present, the yaw system is one of the important components of the wind turbine. It has two main functions: the yaw system of the wind turbine is also called the wind-facing device. Align the wind direction smoothly, so that the wind rotor can obtain the maximum wind energy; second, when the wind turbine generator sets are twisted and twisted due to the yaw action, the cables drawn out of the nacelle will be automatically uncabled. [0003] When the cable is twisted and wound, the height of the cable relative to the tower will also change due to the twist. In the prior art, it is necessary to design a corresponding twisted cable protection device for this link to isolate multiple cables from each other. At present, the commonly used twisted cable protection devices are all fixed on the cable. Since the h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/80
CPCF03D80/85Y02E10/72
Inventor 马磊岑先富
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD