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Method for determining fatigue load of a wind turbine and for fatigue load control, and wind turbines therefor

一种风力涡轮机、疲劳载荷的技术，应用在风力发动机的监控、风力发动机、风力发电机组件等方向，能够解决不能考虑累计的疲劳数据等问题，达到增加特殊性的效果

Inactive Publication Date: 2009-07-15
SIEMENS GAMESA RENEWABLE ENERGY AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this approach cannot take into account accumulated fatigue data and requires more load specification over the lifetime of the wind turbine than would be required when considering "unused" fatigue capacity

Method used

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  • Method for determining fatigue load of a wind turbine and for fatigue load control, and wind turbines therefor
  • Method for determining fatigue load of a wind turbine and for fatigue load control, and wind turbines therefor
  • Method for determining fatigue load of a wind turbine and for fatigue load control, and wind turbines therefor

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Embodiment Construction

[0060] figure 1 A schematic diagram representing an embodiment of a reference wind turbine. Reference Wind Turbine 1 in figure 1 in side view on the left side and in the figure 1 The right side of is represented by the front view. The reference wind turbine 1 comprises a rotor 12 , a nacelle 14 , a processing unit 18 and a wind turbine tower 16 .

[0061] The rotor 12 is connected to the nacelle 14 via a rotor hub (not shown) at the center or axis of rotor rotation of the rotor 12 . Nacelle 14 is mounted on top of wind turbine 16 .

[0062] In the current embodiment, the processing unit 18 is located at the nacelle and is connected to a number of sensors and / or other devices of the wind turbine, as described in more detail below. The processing unit 18 may also be located within other components of the wind turbine or within a separate processing device which may be connected to the wind turbine via a communication line.

[0063] A first set of sensors 31 , 32 , 33 , 34 ...

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Abstract

The invention relates to a method of determining and controllign fatigue load of a wind turbine, and a wind turbine. The method of determining fatigue load of at least one operative wind turbine, comprising: providing a transfer function that associates an obtained at least one measurement value of a first sensor to an obtained at least one measurement value of a second sensor the at least one measurement value of the first sensor and the at least one measurement value of the second sensor being obtained by use of a reference wind turbine at which the first sensor and the second sensor are located; obtaining at least one measurement value of a third sensor, wherein the third sensor is located at the at least one operative wind turbine, and wherein the third sensor corresponds in type and position to the first sensor at the reference wind turbine; calculating at least one transfer function value corresponding to the obtained at least one measurement value of the third sensor by use of the provided transfer function; calculating the fatigue load of the at least one operative wind turbine based on the calculated transfer function value.

Description

technical field [0001] The invention relates to a method of determining fatigue loads of a wind turbine, a method of controlling a wind turbine, a wind turbine and a reference wind turbine thereof. Background technique [0002] In order to reduce technical effort during wind turbine manufacturing, it is desirable to reduce safety redundancies in wind turbine support structure design. [0003] The limits to reduce this safety redundancy are usually defined by the mechanical strength affecting the wind turbine. A known approach is therefore to design the wind turbine structure to withstand the cumulative fatigue loads on the structure just over its design life when operated under a given set of environmental conditions. [0004] Wind turbines are also often operated under conditions where fatigue loads are occasionally at levels that, if the loads are maintained, exceed the fatigue capacity of the wind turbine structure throughout its design life. In order to meet this situa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/00F03D7/04
CPCY02E10/723F03D7/0292F03D7/042Y02E10/722F03D11/0091F05B2270/808F05B2270/80F05B2270/334F05B2270/807F05B2270/332F03D17/00Y02E10/72
Inventor P·埃格达尔H·斯蒂斯达尔
Owner SIEMENS GAMESA RENEWABLE ENERGY AS
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