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Method of operating a wind turbine yaw assembly

A technology of wind turbines and components, applied in the control of wind turbines, monitoring of wind turbines, wind turbines, etc., can solve problems such as difficult to assess impact, no design standards for deflection rings, more space, etc.

Active Publication Date: 2019-03-05
SIEMENS GAMESA RENEWABLE ENERGY AS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such segmented deflection rings have the disadvantage that they are generally more complex than conventional one-piece deflection rings and are therefore more expensive to manufacture
There is no accepted design standard for segmented deflection rings
Furthermore, it is difficult to assess the impact of the transition from one segment to another
Another disadvantage of segmented deflection rings is the need for more space
In any case, the teeth of the segmented deflection rings are also damaged over time, and the replacement of the deflection ring segments is also associated with costs, safety risks and effort

Method used

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  • Method of operating a wind turbine yaw assembly
  • Method of operating a wind turbine yaw assembly
  • Method of operating a wind turbine yaw assembly

Examples

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Embodiment Construction

[0034] figure 1 A sectional view in the nacelle of a direct drive wind turbine 5 is shown. The figure shows a nacelle 51 mounted on a tower 50 . The aerodynamic rotors 55, 56 located at the front of the nacelle comprise rotor blades 55 mounted to a hub 56 which turns the rotor of the generator. A generator (not visible in the figure) is mounted to the support structure 54 . In order to be able to turn the nacelle 51 so that the aerodynamic rotor faces the wind, a toothed deflection ring is mounted to the tower and the deflection drive units 3 are arranged such that their pinions engage the teeth of the deflection ring. The yaw drive unit 3 is held securely in place by the yaw base 52 , which can be part of a support structure 54 . With proper design of the yaw assembly (dimensions of the yaw ring and pinions, number of yaw drive units, electrical power of the yaw drive motors, etc.), it is possible to rotate the entire nacelle relative to the tower with great precision.

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Abstract

The invention describes a method of operating a wind turbine yaw assembly (1) comprising a yaw ring (2) and a number of yaw drive units (3), wherein a yaw drive unit (3) comprises a pinion (30) arranged to engage with the yaw ring (2), which method comprises the steps of identifying a damaged tooth (20F, 20X) on the yaw ring (2); providing damage descriptor parameters (D20F , D20X) to the yaw drive controller (10) ; and controlling a yaw drive unit (3) on the basis of the damage descriptor parameters (D20F , D20X ) to reduce the force exerted by its pinion (30) on a damaged tooth (20F, 20X ).The invention further describes a wind turbine yaw assembly (1), a wind turbine (5), and a computer program product.

Description

technical field [0001] The present invention describes a method of operating a wind turbine deflection assembly. The invention further describes a wind turbine deflection assembly, a wind turbine, and a computer program product. Background technique [0002] Wind turbines for generating electricity that is fed into an electrical grid typically include a nacelle mounted on top of a tower. An aerodynamic rotor with blades mounted to a hub is usually found in the "front" of the nacelle, and the generator itself is housed within the nacelle. In order to maximize the amount of energy that can be extracted from the wind, it must be possible to turn the nacelle so that the aerodynamic rotor is always facing directly into the wind. For this purpose, the nacelle is usually mounted to the tower by means of a deflection assembly. The deflection assembly can include a toothed deflection ring mounted to the top of the tower. The deflection ring can be configured such that the deflect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/04F03D17/00
CPCF03D7/0204F05B2270/602F03D17/00F05B2260/4031F05B2260/80F05B2270/101Y02E10/72F03D7/042
Inventor A.佩歇尔T.温德-拉森
Owner SIEMENS GAMESA RENEWABLE ENERGY AS
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