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Control of wind turbines

A technology of wind turbines and turbines, applied in the control of wind engines, engine control, wind engines, etc., can solve problems such as damage to turbines, and achieve the effect of suppressing over-rating

Active Publication Date: 2014-07-23
VESTAS WIND SYST AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such a lift risks damaging the turbine

Method used

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  • Control of wind turbines
  • Control of wind turbines
  • Control of wind turbines

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Embodiment Construction

[0035] The description that follows discusses the general control of the turbines in a wind turbine plant, the control of the output power from those turbines, and the control of factors such as speed and torque within the individual turbines based on set points provided by the plant controller. Optimization of operating parameters. The specification describes the control regime proposed by the multi-turbine controller and sent as commands to the individual turbines, as well as the control regime implemented by the individual turbines and then transmitted to the multi-turbine controller, such as a power plant controller.

[0036] figure 1 A conventional wind power plant 10 is schematically shown comprising a plurality of wind turbines 20 each in communication with a power plant controller PPC 30 . The PPC30 is capable of two-way communication with each turbine. The turbine outputs power to the grid connection point 40 as shown by the thick line 50 .

[0037] During operatio...

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Abstract

A wind turbine power plant comprises a plurality of wind turbines, each having a rated output and under the control of a power plant controller. The power plant also has a rated output which may be over-rated in response to one or more of electricity pricing data, power plant age and operator demand. The power plant controller can send over-rating demand signals to individual turbines. The controllers at the turbines include a fatigue life usage estimator which estimates a measure of the fatigue life consumed by key components of the turbine. If this measure exceeds a target value for any component, over-rating is prevented at that turbine.

Description

technical field [0001] The present invention relates to the control of wind turbines and wind power plants, in particular to a control method and arrangement which take into account the conditions of the wind turbine when making control decisions. Background technique [0002] The rated power of a wind turbine is defined in IEC61400 as the maximum continuous electrical power output, and the wind turbine is designed to achieve the maximum continuous electrical power output under normal operating conditions and external conditions. Large commercial wind turbines are generally designed for a 20-year life and their rated power output takes life expectancy into account. [0003] Wind turbines are typically operated as part of a wind power plant comprising a plurality of wind turbines. US-A-6,724,097 discloses such an operation of a wind power plant. The output of each turbine is determined and the one or more turbines are controlled such that if the total output exceeds the rat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/04
CPCF03D7/0292F03D7/043F05B2270/103F05B2270/109F05B2270/20F05B2270/332Y02E10/72F03D7/042
Inventor J·特纳C·斯普鲁斯R·鲍耶
Owner VESTAS WIND SYST AS
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