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Method of controlling a wind turbine and related system

A technology for wind turbines and controllers, applied in the direction of control system usage, control system types, wind engines, etc., can solve the problems of shortening the life of wind turbines, time-consuming repairs, etc., and achieve the effect of optimizing production and reducing wear and tear

Active Publication Date: 2014-06-25
LM WP PATENT HLDG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Long wind turbine blades (eg having a length of more than 50m) are a challenge for engineers due to the required stiffness of the wind turbine blades (in order to avoid the wind turbine blade colliding with the wind turbine tower)
At the same time as is always desired, at any given point in time the production of the wind turbine is kept optimized so as to provide maximum output without undesired wear or damage to the corresponding wind turbine components which may require time consuming repairs or shortening of wind power turbine life

Method used

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  • Method of controlling a wind turbine and related system
  • Method of controlling a wind turbine and related system
  • Method of controlling a wind turbine and related system

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Embodiment Construction

[0018] For the sake of clarity, the figures are schematic and simplified, and they only show details necessary for understanding the invention, while other details have been left out. The same reference numerals are used throughout for the same or corresponding parts.

[0019] The method includes acquiring data (including first data) indicative of a dynamic condition of a first wind turbine blade and rotor. The first data comprise rotor data indicative of the azimuthal position Ψ of the rotor in a rotor plane perpendicular to the rotor axis and the rotational speed ω of the rotor such that the position of the first wind turbine blade in the rotor plane perpendicular to the rotor axis can be determined Azimuth position Ψ 1 and the rotation rate ω of the first wind turbine blade 1 . Additionally, the first data includes first deflection data indicative of position X, velocity X' and acceleration X'' of one or more portions of the first wind turbine blade, e.g., perpendicular ...

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Abstract

The present invention relates to a method for controlling a wind turbine,in particular a method for controlling pitch of one or more blades of a wind turbine and related system. The method comprises collecting first data indicative of a dynamic condition of the first wind turbine blade and the rotor, the first data comprising rotor data and first deflection data, the rotor data being indicative of the azimuth position and rotational velocity of the rotor in a rotor plane perpendicular to the rotor axis, and the first deflection data being indicative of the position, speed and acceleration of one or more parts of the first wind turbine blade.; Further, the method comprises calculating an expected tower clearance distance at a later time of tower passage for the first wind turbine blade based on the first data including acceleration of one or more parts of the first wind turbine blade, and performing measures to prevent tower collision, if the expected tower clearance distance fulfills a collision risk criterion.

Description

technical field [0001] The present invention relates to a method for controlling a wind turbine, in particular a method and related system for controlling the pitch of one or more blades of a wind turbine. Background technique [0002] Developments within the wind turbine blade industry are moving towards increasingly longer wind turbine blades. Long wind turbine blades (eg having a length of more than 50m) are a challenge for engineers due to the required stiffness of the wind turbine blade (in order to avoid the wind turbine blade colliding with the wind turbine tower). At the same time as is always desired, at any given point in time the production of the wind turbine is kept optimized so as to provide maximum output without undesired wear or damage to the corresponding wind turbine components which may require time consuming repairs or shortening of wind power life of the turbine. Contents of the invention [0003] It is an object of the present invention to provide ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/04
CPCF05B2270/33Y02E10/723F05B2270/329F03D7/04F05B2270/17F05B2270/404F03D7/0224Y02E10/72F05B2270/328
Inventor M.O.斯洛特
Owner LM WP PATENT HLDG
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