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Control method for a wind turbine

A technology of wind turbines and control methods, applied in the direction of wind engine control, engine control, wind engines, etc., can solve the problems of detecting wind load conditions, failure to protect turbines, slow system, etc., and achieve the effect of avoiding fatigue damage

Active Publication Date: 2012-08-22
VESTAS WIND SYST AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under certain conditions, especially extreme wind conditions, such systems become too slow or too inaccurate to detect changes in wind load conditions at the right time for the turbines to perform optimally, so may be inadequate and in some cases doesn't even protect the turbine

Method used

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  • Control method for a wind turbine
  • Control method for a wind turbine
  • Control method for a wind turbine

Examples

Experimental program
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Effect test

Embodiment Construction

[0093] Such as figure 1 As shown, wind turbine 90 includes a tower 92, a nacelle 94 on top of the tower housing machine components such as gearboxes, generators, etc. (not shown). At one end of the nacelle, a hub portion 96 supports a plurality of wind turbine blades 10 . The rotor of a wind turbine includes blades and possibly other rotating parts such as hub portion 96 . One or more measurement units 12 may be provided on the hub portion 96 , in or on the nacelle, in one or more blades and in the tower 92 . One or more measuring units 12 are arranged to measure one or more operating parameters representative of the load imposed by the wind on the wind turbine rotor, such as the acceleration of the wind turbine component, the load of the wind turbine component, the deflection of the wind turbine component or the rotational speed of a wind turbine component. The load measurement may eg be a torque measurement at the hub or a stress at the blade root and is performed by suit...

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PUM

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Abstract

The invention relates to a method of controlling a wind turbine having a rotor with pitchable wind turbine blades and a generator for producing power, where a control signal for a controllable parameter of the wind turbine is determined, and an operational parameter representing a loading on the wind turbine exerted by the wind is estimated at time intervals. From this is determined a variation parameter reflecting the variation of the operational parameter over time. The wind turbine is then controlled according to the control signal only if the variation parameter is below an alert threshold, and otherwise according to a modified control strategy.

Description

technical field [0001] The invention relates to a solution for controlling and adjusting different controllable parameters of a wind turbine during operation in order to reduce extreme loads acting on wind turbine components. Background technique [0002] State-of-the-art wind turbines are constantly controlled and regulated in order to ensure maximum power extraction from the wind under prevailing wind and weather conditions and at the same time to ensure that the load on the different components of the wind turbine is always kept within tolerable limits. Ideally, wind turbines could also be controlled to take into account rapid local changes in wind speed - so-called gusts, and to account for dynamic changes in the tower's load on individual blades, for example due to blade passage, or changes in distance to the ground. Actual wind speed (wind profile). [0003] For this purpose, a large number of parameters are collected and monitored by the controller in the wind turbin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/04
CPCF03D7/0224F03D7/0232F03D7/0264F03D7/042F03D7/043F05B2260/821F05B2270/101F05B2270/1032F05B2270/1033F05B2270/1095F05B2270/309F05B2270/32F05B2270/322F05B2270/327F05B2270/328F05B2270/331F05B2270/335F05B2270/404G05B13/021H02P9/04H02P2101/15Y02E10/72F05B2240/122
Inventor A·S·安德森J·S·汤姆森E·C·L·米兰达伊玛德·阿卜杜拉保罗·勃兰特·克里斯滕森A·扎伊比T·T·巴赫曼
Owner VESTAS WIND SYST AS
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