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Charging device for wind turbines

A technology of wind power generators and charging devices, which is applied to battery circuit devices, circuit devices, collectors, etc., can solve problems such as failure costs and mechanical contact wear, and achieve the effect of improving reliability

Active Publication Date: 2018-07-31
XINJIANG GOLDWIND SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power supply methods of slip rings and brushes are all based on the principle of mechanical contact. The installation accuracy of slip rings and brushes is high, and mechanical contact has the risk of failure such as wear and tear, and the cost is high; while wired power supply is only applicable to Small-sized components or use environments that are not prone to interference

Method used

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  • Charging device for wind turbines
  • Charging device for wind turbines
  • Charging device for wind turbines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] figure 1 It is a structural schematic diagram showing a charging device for a wind power generating set according to Exemplary Embodiment 1 of the present invention.

[0027] refer to figure 1 , a charging device for a wind power generating set, comprising a charging transmitting end 13 and a charging receiving end 12, the charging transmitting end 13 is on the hub 1, and the charging receiving end 12 is on the pitch bearing 8 , when the pitch bearing 8 rotates to a predetermined position relative to the hub 1, the charging transmitting end 13 is at least partially aligned with the charging receiving end 12, and the charging transmitting end 13 wirelessly transmits electric energy to the charging Receiver 12.

[0028] In this embodiment, the charging transmitting end is connected to the power supply of the pitch cabinet or other electrical equipment in the wind power generating set. When the wireless charging transmitting board of the charging transmitting end is at l...

Embodiment 2

[0037] figure 2 A schematic diagram of the first pitch angle position in the second embodiment is shown. image 3 A schematic diagram of the second pitch angle position in the second embodiment is shown.

[0038] This embodiment shows an application mode of the charging device used in the first embodiment for wind power generating sets. In this example, refer to figure 1 , the blades 7 of the wind power generating set are connected with the hub 1 through the pitch bearing 8 . In this embodiment, one wireless charging transmitting board and two wireless charging receiving boards are used, wherein one wireless charging transmitting board is the A-angle wireless charging transmitting board 3, and the two wireless charging receiving boards are the A-angle wireless charging receiving board 4 And B corner wireless charging receiving board 6.

[0039] refer to figure 2 , when the wind turbine is running normally to generate electricity, the pitch angle between the first positi...

Embodiment 3

[0043] Figure 4 A schematic diagram of the first pitch angle position in the third embodiment is shown. Figure 5 A schematic diagram of the second pitch angle position in the third embodiment is shown.

[0044] This embodiment shows another application mode of the charging device used in the first embodiment for the wind power generating set. In this example, refer to figure 1 , the blades 7 of the wind power generating set are connected with the hub 1 through the pitch bearing 8 .

[0045] The difference from Embodiment 2 is that in this embodiment, two wireless charging transmitting boards and one wireless charging receiving board are used, wherein the two wireless charging transmitting boards are the A-angle wireless charging transmitting board 3 and the B-angle wireless charging board. The charging transmitting board 11 and one wireless charging receiving board are the A-angle wireless charging receiving board 4 .

[0046] refer to Figure 4 , when the pitch angle i...

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PUM

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Abstract

An embodiment of the invention provides a charging apparatus for a wind power generator set. The charging apparatus comprises a charging transmitting end and a charging receiving end, wherein the charging transmitting end is arranged on a hub; the charging receiving end is arranged on a variable-pitch bearing; when the variable pitch bearing rotates to a predetermined position relative to the hub, the charging transmitting end and the charging receiving end are at least partially aligned; and the charging transmitting end transmits electric energy to the charging receiving end in a wireless manner. According to the charging apparatus for the wind power generator set provided by the invention, the power equipment on the blade side of the wind power generator set can be charged in the wireless charging manner; the wireless charging way is a non-contact power supply way, so that the risks of bad contact caused by abrasion, cable intervene and the like that may occur in contact type power supply ways, such as a slip ring power supply way, an electric brush power supply way, a wired power supply way and the like, can be avoided; the power supply reliability is improved; and meanwhile, the charging apparatus is not worn easily, and the maintenance cost of the charging apparatus is lowered.

Description

technical field [0001] The invention relates to the technical field of charging of wind power generators, in particular to a charging device for wind power generators. Background technique [0002] For the power supply of the electrical equipment on the blade side of the wind power generating set, at present, it is mainly through slip ring power supply, brush power supply and / or wired power supply. The power supply methods of slip rings and brushes are all based on the principle of mechanical contact. The installation accuracy of slip rings and brushes is high, and mechanical contact has the risk of failure such as wear and tear, and the cost is high; while wired power supply is only applicable to Small-sized components or use environments that are not prone to interference. Contents of the invention [0003] The object of the present invention is to provide a charging device for a wind power generating set, which has low maintenance cost and high reliability. [0004] A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J50/20
CPCH02J5/005H02J7/025
Inventor 田锋李坤武飞
Owner XINJIANG GOLDWIND SCI & TECH CO LTD