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A wind turbine blade pitch system

A technology of wind turbines and pitch, applied in the direction of wind turbines, control of wind turbines, engines, etc., capable of solving problems such as catastrophic failures and fatigue of mechanical components

Active Publication Date: 2021-07-23
VESTAS WIND SYST AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Over time, repeated use of a blade pitch system can cause fatigue of some of its mechanical elements, which in some cases can lead to potentially catastrophic failure in the system

Method used

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  • A wind turbine blade pitch system
  • A wind turbine blade pitch system
  • A wind turbine blade pitch system

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Embodiment Construction

[0028] DETAILED DESCRIPTION OF THE PREFERRED DESCRIPTION OF THE PREFERRED EMBODIMENTS These embodiments have been described in detail in order to enable those skilled in the art to practice the present invention. Other embodiments can be utilized, and structural and logical changes can be made without departing from the scope of the invention as defined by the appended claims. Moreover, references to any other term "external", "internal" and any other terms having an implicit orientation are not intended to be limiting, and these references are only the orientations of the features shown in the drawings.

[0029] figure 1 A wind turbine of the overall designated 10 is shown, which includes a tower 12. The tower 12 supports the nacelle 14 of the rotor 16. The rotor 16 is operatively coupled to a generator accommodated within the nacelle 14. In addition to the generator, the nacelle 14 also accommodates a wide variety of components required to convert the wind energy into electrica...

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Abstract

This invention concerns a wind turbine blade pitch system for rotating rotor blades 18 of a wind turbine 10 relative to a hub 20. The wind turbine pitch system comprises an actuating stem (38) moveable in an axial direction; a traverse holder 40; a traverse 42 rotatably mounted on the actuating stem 38, wherein the traverse 42 comprises a traverse arm 44 radially extending from the traverse holder 40; a connection plate 62 rotationally coupling the traverse 42 and the traverse holder 40; and, a crank arm 46 connected at one end to the traverse arm 44 and at another end to a rotatable pitch bearing 48 coupled to the rotor blade 18. The crank arm 46 is configured to convert the axial movement of the actuating stem 38 into a rotational movement of the rotor blade 18. The connection plate 62 comprises an inner annular flange region 78 secured to the traverse holder 40; an outer annular flange region 76 secured to the traverse 42; and, a central annular region 80 radially positioned between and connecting the inner and outer annular flange regions 78, 76. The central annular region 80 is configured to flex relative to the inner and outer annular flange portions 78, 76 to reduce the stiffness of the connection plate 62 between inner and outer annular flange portions 78, 76.

Description

Technical field [0001] The present invention relates to a blade pitch system of a wind turbine. In particular, various aspects of the invention relate to blade pitch systems and wind turbines including blade paddle systems. Background technique [0002] Wind turbines include blade pitch systems for controlling the pitch of their rotor blades based on environmental wind conditions and rotational speed and power generation. Over time, the reuse of the blade paddle system can cause fatigue of certain mechanical components, in some cases, which can cause potential catastrophic failures in the system. [0003] In this context, the present invention has been designed. Inventive content [0004] According to a first aspect of the present invention, a wind turbine blade system for rotating a wind turbine rotor blade relative to the hub, the wind turbine blade pad, including: an actuating rod, which can be in the axis Move in the direction; the transverse member retainer; the transverse ...

Claims

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Application Information

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IPC IPC(8): F03D7/02
CPCF03D7/0224F05B2260/79Y02E10/72
Inventor J·B·尼尔森D·洛伦特·韦拉奎兹P·卡利昂·阿邦戈扎尔
Owner VESTAS WIND SYST AS