A wind turbine and associated control method

一种风力涡轮机、风力的技术，应用在风力发动机的控制、发动机控制、风力发动机等方向，能够解决未公开调整机舱位置等问题

Active Publication Date: 2012-11-14
YUANJIAN WIND POWER JIANGYINENVISION ENERGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this document does not disclose any method for deciding when to adjust the position of the nacelle, but instead performs a complete correction of the position of the nacelle for each small change in wind direction, which causes excessive wear and tear in the yaw system as described above

Method used

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  • A wind turbine and associated control method
  • A wind turbine and associated control method
  • A wind turbine and associated control method

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Embodiment Construction

[0058] see Figure 1-3 , a wind turbine according to the invention is indicated generally at 10 . The wind turbine 10 includes a wind turbine tower 12 , a nacelle 14 arranged on top of the tower 12 , and a rotor hub 16 arranged at the nacelle 14 . A pair of partially pitched rotor blades 18 are provided on the rotor hub 16 . figure 1 and 2 In , a tower 12 is shown mounted on a wind turbine base 13, which may comprise any suitable wind turbine foundation.

[0059] Each partial pitch rotor blade 18 comprises a blade body having a root end 18 a mounted to said rotor hub 16 and a distal tip 18 b. The rotor blade 18 comprises an inner blade segment 11a provided at said root end 18a, and an outer blade segment 11b provided at said tip end 18b. The rotor blade 18 further comprises a pitch system (not shown) arranged at the junction between said inner blade segment 11a and outer blade segment 11b. (For clarity purposes, in Figure 1-3 Features of one blade are shown in relation ...

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PUM

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Abstract

A method for controlling a two-bladed wind turbine in extreme wind conditions is described, wherein when extreme conditions are detected or forecast for the wind turbine, the wind turbine blades are positioned in a horizontal arrangement, and actively yawed such that a tip of one of the wind turbine blades points into the wind direction. The blades are yawed such as to actively follow the changing wind direction, resulting in a reduced surface area of the blades exposed to the extreme wind forces, due to the spear-like arrangement of the turbine blades. This reduced surface area provides for a reduction in the extreme loads which may be experienced by the wind turbine in such extreme wind conditions.

Description

technical field [0001] The present invention relates to a wind turbine and a method of controlling the wind turbine, in particular to a method of controlling the wind turbine to reduce the maximum loads experienced by the wind turbine under extreme wind conditions. Background technique [0002] Wind turbines may typically be located in areas with relatively predictable wind patterns, eg, wind speeds varying between about 15-25 m / s. However, during stormy conditions, wind speeds can often reach extreme levels that can damage the wind turbine structure. For example, an offshore wind turbine installation may experience typhoon or hurricane conditions where wind speeds in gusts may exceed 70 m / s. high wind speeds mean that wind turbines intended to be located in locations prone to extreme wind conditions must be constructed of robust materials and / or additionally strengthened to withstand the effects of possibly high wind forces in such areas, and Appropriately designed for us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/06F03D3/06
CPCF05B2270/32F05B2270/107F03D7/0268F05B2270/1011Y02E10/723F03D7/0228F03D7/0212F05B2270/321Y02E10/72
Inventor A·V·雷布斯多夫M·弗里德里希
Owner YUANJIAN WIND POWER JIANGYINENVISION ENERGY CO LTD
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