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Electric cable for wind turbine and wind turbine

A technology for wind turbines and cables, applied in the field of cables, can solve problems such as inability to ensure effective cooling of cables

Pending Publication Date: 2020-11-10
SIEMENS GAMESA RENEWABLE ENERGY AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, effective cooling of the cables cannot be ensured when the temperature of the ambient air is about 45°C or higher

Method used

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  • Electric cable for wind turbine and wind turbine
  • Electric cable for wind turbine and wind turbine
  • Electric cable for wind turbine and wind turbine

Examples

Experimental program
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Embodiment Construction

[0024] figure 1 A wind turbine 1 comprising a tower 2 and a nacelle 3 is shown, wherein the nacelle 3 is located on top of the tower 2. The wind turbine 1 also includes blades 4 attached to a hub 5. The hub 5 is connected to a generator 6 located in the nacelle 3 via a shaft 7. The rotation of the hub 5 powered by the wind interacting with the blades 4 is transmitted to the rotor of the generator 6 to generate electric power.

[0025] The wind turbine 1 furthermore comprises a cable 8 which electrically connects the electrical components of the wind turbine 1. Illustratively, the cable 8 connects the generator 6 of the wind turbine 1 with a remote component or another component of the wind turbine 1. The cable 8 extends from the generator 6 partially through the nacelle 3 down into the tower 2 where it is attached to the wall of the tower 2.

[0026] Since it usually carries high voltages, the cable 8 generates heat and must be cooled. In many cases, the cooling of the cable 8 ...

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Abstract

The invention relates to an electric cable for a wind turbine (1), and the cable is characterized in that the cable (8) comprises at least one cooling element (109 to cool the electric cable (8), wherein the cooling element (10) protrudes from the surface of the electric cable (8) .

Description

Technical field [0001] The invention relates to a cable for a wind turbine. Background technique [0002] Since the cables of wind turbines usually carry high currents, the wires or conductors of these cables generate heat. Therefore, the cable must be cooled, for example by convection of air passing through the cable, airflow through the tower, etc. In addition, a tower fan can be provided, which generates a forced flow of particularly ambient air through the tower and cools the cables. In extreme weather conditions, such as when the temperature of the ambient air is relatively high, the cable cooling requirements become quite challenging. In particular, when the temperature of the ambient air is about 45°C or higher, effective cooling of the cable cannot be ensured. Summary of the invention [0003] Therefore, the object of the present invention is to provide an enhanced concept for cooling the cables of wind turbines, in particular to ensure adequate cooling even under extre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/80F03D80/00F03D80/60
CPCF03D80/85F03D80/00F03D80/60H01B7/426H02G3/03F05B2260/20Y02E10/72H02K7/1838H01B7/184H01B7/1875
Inventor M.拉弗莱阿拉什纳布
Owner SIEMENS GAMESA RENEWABLE ENERGY AS
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