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Wind speed dependent adaptation of a set point for a fatigue life of a structural component of a wind turbine

A technology for wind turbines, structural components, applied in the field of operating wind turbines, wind turbines

Inactive Publication Date: 2011-05-25
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under extreme wind conditions, it may still be necessary to completely stop the operation of the wind turbine even if the operating strategy disclosed in JP 2006 241981 is implemented

Method used

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  • Wind speed dependent adaptation of a set point for a fatigue life of a structural component of a wind turbine
  • Wind speed dependent adaptation of a set point for a fatigue life of a structural component of a wind turbine
  • Wind speed dependent adaptation of a set point for a fatigue life of a structural component of a wind turbine

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Embodiment Construction

[0059] The illustrations in the figures are schematic. It should be noted that in different figures, similar or identical elements are provided with reference numerals which differ from the corresponding reference numerals only by the first digit.

[0060] figure 1 A wind turbine 100 according to the invention is shown. Wind turbine 100 includes a tower 120 mounted on a foundation, not shown. A nacelle 122 is arranged above the tower 120 . Between the tower 120 and the nacelle 122 there is provided a yaw angle adjustment device 121 which enables the nacelle 122 to rotate about a vertical axis not shown which is aligned at least approximately parallel to the longitudinal extension of the tower 120 department. By controlling the yaw angle adjustment device 121 in a suitable manner it can be ensured that during normal operation of the wind turbine 100 the nacelle 122 is always properly aligned with the current wind direction. However, as described in more detail below, the y...

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Abstract

The invention relates to a wind speed dependent adaptation of a set point for a fatigue life of a structural component of a wind turbine. It is described a method for controlling the operation of a wind turbine (100) comprising at least one structural component. The described method comprises (a) scheduling a fatigue life time consumption of the structural component (114, 120, 122), (b) determining the current velocity of a wind which is driving the wind turbine, (c) specifying a current set point value for the fatigue life time consumption of the structural component based on the scheduled fatigue life time consumption of the structural component, (d) specifying a maximum set point value for the fatigue life time consumption of the structural component based on the determined current wind velocity, and (e) operating the wind turbine (100) depending on the specified current set point value and / or on the specified maximum set point value such that a mechanical load acting on the structural component is controlled. It is further described a machine load control system, a wind turbine and a computer program, which are adapted for carrying out and / or for controlling the described wind turbine operation control method.

Description

technical field [0001] The invention relates to the technical field of operating wind turbines. In particular, the invention relates to a control method and a machine load control system for controlling the operation of a wind turbine in such a way that a suitable fatigue period depletion of structural components of the wind turbine can be achieved. Further, the invention relates to a wind turbine and a computer program adapted to implement the above-mentioned operation control method. Background technique [0002] The rotor blades of a wind turbine are exposed to large dynamic mechanical loads, especially when the wind turbine is operated under turbulent wind conditions or under conditions of air flow distortion, such as high wind shear. Thus, the rotor blades and the corresponding support structures of a wind turbine have for example been dimensioned to withstand all dynamic loads that a wind turbine demonstrates may occur under all conditions. However, in case of extrem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/04
CPCF05B2270/1095Y02E10/723F03D7/0292F05B2270/32F05B2260/821F03D7/043F05B2270/109F05B2270/332Y02E10/72
Inventor H·斯蒂斯达尔
Owner SIEMENS AG
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