Control of wind turbines in a wind park

A technology of wind turbines and turbines, applied in the direction of wind engine control, wind engine monitoring, engine control, etc., can solve the problem of reducing wind farms and achieve the effect of increasing financial income

Active Publication Date: 2013-05-01
VESTAS WIND SYST AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This in itself is disadvantageous as the control effect is to reduce the power output by the wind turbines and thus the wind farm

Method used

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  • Control of wind turbines in a wind park
  • Control of wind turbines in a wind park
  • Control of wind turbines in a wind park

Examples

Experimental program
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Embodiment Construction

[0025] figure 1 A wind park comprising multiple rows of wind turbines 10a-10n is shown. In the schematic, the turbines are arranged in a regular pattern, but in practice, the distribution of the turbines depends on the topography of the location and the wind conditions measured at that location. exist figure 1 In , the first row of turbines 10a are referred to as upstream turbines (although this depends on the wind direction). As the wind direction changes, the turbines will deflect in the direction of the wind such that, for example, a 90 degree change in direction will cause the leftmost or rightmost column of turbines to become the upstream turbine.

[0026] The size of the wake produced by a given turbine depends on wind speed and turbulence. At higher wind speeds, the vortex can extend substantially behind a given upstream turbine, which is in the shadow of the upstream turbine. Depending on the degree of turbulence in the wake, this may have an adverse effect on the ...

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PUM

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Abstract

A wind park comprises a plurality of wind turbines with a least one wind turbine downstream of at least one upstream turbine. The downstream turbine includes a Lidar or other device for sensing characteristics of the wake produced by the upstream turbine and for providing an output to a turbine or wind park controller indicative of the measured wake. The controller controls parameters of the downstream turbine an possibly adjacent turbines in accordance with the wake indicative signals. The control may include overrating the downstream turbine if the wake indicative signal indicates that there is a low risk of fatigue damage to components of the downstream turbine.

Description

technical field [0001] The present invention relates to wind turbines and in particular to utilizing Lidar to control one or more operating parameters of one or more wind turbines in a wind farm. Background technique [0002] A wind farm comprises an array of multiple wind turbines having some common control elements and exporting electrical power to the grid via a common connection point. The relative siting of wind turbines depends on a number of factors including the topography of the location and the measured wind characteristics of the location. One factor that is always taken into consideration, however, is the effect wind turbines have on each other. Specifically, downstream turbines may be affected by the upstream turbine wake to an extent determined by wind conditions. The effect of the whirl zone on turbine positioning is discussed in the following paper by Ma et al., titled "The Dynamic Modeling of Wind Farms Considering Wake Effects and its Optimal Distribution...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D11/00F03D7/04F03D9/00
CPCG05B11/01Y02E10/723F03D7/0292Y02E10/722Y02E10/72F03D11/0091F05B2270/8042F05B2270/32F05B2270/20F03D7/048F03D17/00F05B2270/326F03D7/0276F05B2270/204F03D9/257F03D7/02
Inventor R·鲍耶A·萨恩C·比尔蒂
Owner VESTAS WIND SYST AS
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