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Method and device for identifying blade pitch angle deviation and controlling wind turbine generator set

A wind turbine, pitch angle technology, applied in the control of wind turbines, monitoring of wind turbines, wind turbines, etc., can solve the problems of inability to automatically and conveniently identify blades, deviations, etc., to increase output, reduce load and glitch effect

Active Publication Date: 2022-07-19
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Abstract
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Problems solved by technology

[0006] An exemplary embodiment of the present invention is to provide a method and device for identifying the blade pitch angle deviation and controlling the wind power generating set, so as to solve the problem in the prior art that the actual pitch angle of the blade and the optimal pitch angle cannot be automatically and conveniently identified. The problem of deviation between distance and angle

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  • Method and device for identifying blade pitch angle deviation and controlling wind turbine generator set
  • Method and device for identifying blade pitch angle deviation and controlling wind turbine generator set
  • Method and device for identifying blade pitch angle deviation and controlling wind turbine generator set

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Embodiment Construction

[0050] Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like parts throughout. The embodiments will be described below in order to explain the present invention by referring to the figures.

[0051] figure 1 A flow chart illustrating a method of identifying a blade pitch angle deviation of a wind turbine according to an exemplary embodiment of the present invention.

[0052] refer to figure 1 , in step S10, obtain the operation data of the wind turbine.

[0053] As an example, the operation data of the wind turbine may be acquired when the wind turbine generates electricity normally under certain conditions and there is no power restriction.

[0054] Further, as an example, after the wind turbine generates electricity normally under the specific conditions and the electricity is not limited for a first preset duration, the operation data ...

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Abstract

Provided are a method and a device for identifying blade pitch angle deviation and controlling a wind turbine. The method for identifying blade pitch angle deviation includes: acquiring the operating data of the wind turbine; The energy amplitude at three times the rotational frequency of the impeller; based on the determined energy amplitude at one rotational frequency and three times the rotational frequency of the impeller, a specific mathematical model established in advance is used to determine the current absolute deviation angle of the pitch angle of the blade , where the absolute deviation angle of the current pitch angle of the blade is the deviation between the current pitch angle of the blade and the optimal pitch angle.

Description

technical field [0001] The present invention generally relates to the technical field of wind power generation, and more particularly, to a method and device for identifying blade pitch angle deviation and controlling a wind power generating set. Background technique [0002] Usually in the design and simulation stage of the wind turbine, the control parameters of the wind turbine are designed according to the mathematical model of the whole machine (involving blades, towers, pitch, and variable flow systems, etc.) optimal pitch angle parameters. When the wind turbine is running, if the output power of the wind turbine is less than the rated power, the pitch angle of the blade is fixed at the optimum pitch angle, so that the blade can obtain the maximum energy from the wind energy. [0003] However, in the field installation process, due to installation errors or errors, there may be a deviation between the actual pitch angle of the blade (one or more blades) and the optima...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D17/00F03D7/00
CPCF03D17/00F03D7/00F05B2270/328Y02E10/72
Inventor 欧发顺薛达吴先友
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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