Turbine over-rating using turbulence prediction

An over-rated, wind turbine technology, used in engines, mechanical equipment, engine components, etc., to solve problems such as time-consuming, inability to prevent turbine components from breaking down

Inactive Publication Date: 2017-05-24
VESTAS WIND SYST AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, emergency shutdown procedures take time and in some cases may not prevent severe damage to turbine components

Method used

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  • Turbine over-rating using turbulence prediction
  • Turbine over-rating using turbulence prediction
  • Turbine over-rating using turbulence prediction

Examples

Experimental program
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Embodiment Construction

[0035] figure 1 is a schematic illustration of an exemplary wind turbine nacelle 6 mounted on a tower 8 . One or more wind turbine blades 10 are connected to a hub 12 which rotates a main drive shaft 14 . The drive shaft is coupled to a gearbox 16 which in turn drives a layshaft 18 which is coupled to a generator 20 . The main drive shaft 14 is supported by a main gear 22 . A power converter and / or transformer 24 may also be housed in the nacelle. Other components include yaw drive 26 and pitch actuator 28 . Additionally, sensors 30 , 32 , 34 , and 36 feed sensor signals to controller 38 . These sensors may include anemometers and vanes 30 , longitudinal wind speed measurement devices 32 (eg, lidar, radio radar, or sodar), temperature sensors 34 , and turbulence monitoring devices 36 . Turbulence conditions may be detected locally in the wind turbine using both the longitudinal wind speed measurement device 32 and the turbulence monitoring device 36 . The temperature sen...

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PUM

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Abstract

An apparatus and method is disclosed for over-rating a wind turbine using turbulence prediction. Weather forecast information is used to determine whether there is a risk of turbulent conditions occurring at the site of the wind turbine. The wind turbine is over-rated if turbulent conditions are not predicted, and conversely over-rating is cancelled or reduced if turbulent conditions are expected. This allows an increase in the annual energy production of the wind turbine to be realised. The weather forecast information may be combined with real time measurements of operating conditions to supplement the predictions.

Description

technical field [0001] The present invention relates to means for overrating wind turbines using turbulence forecasts. In particular, the present invention relates to means for over-rating control of wind turbines, and to methods and apparatus for enabling one or more wind turbines of a wind farm to be over-rated for short periods of time to generate electrical energy based on predicted and current turbulence . Background technique [0002] Defined in IEC 61400: The rated power of a wind turbine is the maximum continuous electrical power output that the wind turbine is designed to achieve under normal operating and external conditions. Large commercial wind turbines are typically designed for a 20-year lifetime, and their rated power output is taken into account over that lifetime. [0003] It is desirable for a wind turbine to operate in an overrated mode of operation because this increases the annual energy production (AEP) of the turbine. In other words, more electrici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/02F03D7/04
CPCF03D7/028F03D7/048F05B2260/8211F05B2270/103F05B2270/1075F05B2270/20F05B2270/332F05B2270/8042F05B2220/706Y02A30/00Y02E10/72Y02P80/10F03D1/06F03D7/0268F03D7/047G05B19/048G05B2219/2619
Inventor T·克吕格尔F·卡波内蒂
Owner VESTAS WIND SYST AS
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