Method, device and system for determining wake flow field of wind generating set

A technology for determining methods for wind turbines, applied in the control of wind turbines, wind turbines, wind power generation, etc., can solve problems such as inaccurate calculation of wake flow fields, achieve accurate assessment, improve calculation accuracy, and reduce investment risks Effect

Pending Publication Date: 2021-12-31
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Application Information

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Problems solved by technology

[0004] In view of the shortcomings of the existing methods, the present application proposes a method, device and system for determining the wake flow field of a wind power generating set, so as to solve the problem of calculating the wake flow field of a wind power generating set in a wind farm existing in the prior art. precise technical questions

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  • Method, device and system for determining wake flow field of wind generating set
  • Method, device and system for determining wake flow field of wind generating set
  • Method, device and system for determining wake flow field of wind generating set

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[0046] The present application is described in detail below, and examples of embodiments of the present application are shown in the drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. Also, detailed descriptions of known technologies will be omitted if they are unnecessary to illustrate the features of the present application. The embodiments described below by referring to the figures are exemplary only for explaining the present application, and are not construed as limiting the present application.

[0047] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as commonly understood by those of ordinary skill in the art to which this application belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be un...

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Abstract

The embodiment of the application provides a method, device and system for determining a wake flow field of a wind generating set. The method for determining the wake flow field of the wind generating sets comprises the following steps: acquiring the current equivalent wind speed of the windward side of an impeller of each wind generating set in a wind power plant; determining the current thrust of each wind generating set according to the power coefficient, the thrust coefficient and the equivalent wind speed of each wind generating set under the current equivalent wind speed; determining a current candidate wake flow field of each wind generating set according to the current thrust of each wind generating set; determining whether the deviation between the current candidate wake flow field and the last candidate wake flow field is smaller than a preset value or not; if yes, using the current candidate wake flow field as the wake flow field, and otherwise, continuously determining the next candidate wake flow field of each wind generating set. According to the embodiment of the application, the calculation accuracy of the wake flow field of the wind generating set can be improved.

Description

technical field [0001] The present application relates to the technical field of wind power generating sets, and in particular, the present application relates to a method, device and system for determining the wake flow field of a wind generating set. Background technique [0002] At present, most wind farms arrange multiple wind turbines together, and the downstream wind turbines will be affected by the wake of the upstream wind turbines. The impact of wind turbine wake mainly includes two aspects. On the one hand, it will cause wind speed attenuation, which will lead to a decrease in power generation; on the other hand, it will cause increased turbulence, which will affect the safety of wind turbines. [0003] Now there are more and more large-scale wind farms. Using the linear wake model based on small wind farms will make the calculation of the wake flow field of the wind turbines in the wind farm inaccurate, thereby underestimating the influence of the wake of the wind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/00
CPCF03D7/00Y02E10/72
Inventor 滕录葆付炳瑞李汉明
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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