Wind direction weighted filtering-based automatic yaw controlling method for wind generating set

A wind turbine, yaw control technology, applied in the control of wind turbines, wind turbines, engine control and other directions, can solve the problems of power loss, shortened service life, frequent yaw actions, etc., to avoid yaw misoperation, The effect of improving accuracy and reducing power loss

Inactive Publication Date: 2015-01-28
INNER MONGOLIA GEOHO ENERGY TECH
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Problems solved by technology

In the yaw control system of the existing wind turbines, in order to reduce the number of yaw actions and reduce the fatigue load of the yaw mechanism, the wind direction is judged by the average value over a period of time, which can avoid the yaw caused by the instantaneous wind direction change. However, the time selection is very important. If the time selection is too long, the yaw action will cause a large power loss. If the time selection is too short, the yaw action will be too frequent. service life

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  • Wind direction weighted filtering-based automatic yaw controlling method for wind generating set
  • Wind direction weighted filtering-based automatic yaw controlling method for wind generating set
  • Wind direction weighted filtering-based automatic yaw controlling method for wind generating set

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with accompanying drawing:

[0027] refer to figure 1 , is a schematic diagram of an automatic yaw control method for a wind power generating set based on wind direction weighted filtering in the present invention. In the embodiment of the present invention, firstly, a plurality of wind direction sampling values ​​(represented as angle data) are obtained through sampling, and at the same time, corresponding yaw angle data of a plurality of wind power generating sets are obtained through sampling. Each sampled value of wind direction is subtracted from the sampled value of the yaw angle of the wind turbine generator set (the angle of the wind rotor axis direction of the wind turbine generator set) obtained at the corresponding moment, so as to obtain the yaw angle error value at the corresponding moment. Then the multiple yaw angle error values ​​are weighted and filtered through the present invention,...

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Abstract

The invention belongs to the technical field of wind generating system controlling and particularly relates to a wind direction weighted filtering-based automatic yaw controlling method for a wind generating set. The wind direction weighted filtering-based automatic yaw controlling method includes setting a select time t of a yaw control system of the wind generating set, and acquiring a yaw angle error array Wd of the yaw control system of the wind generating set in the select time; setting weighting coefficients of yaw angle error values of the yaw control system of the wind generating set during the select time; acquiring the yaw angle error values after weighting filtering, and performing yaw control on the wind generating set according to the yaw angle error values after the weighting filtering.

Description

technical field [0001] The invention belongs to the technical field of wind power generation system control, and in particular relates to an automatic yaw control method for a wind power generating set based on wind direction weighted filtering. Background technique [0002] When the wind direction changes and exceeds the design value, the wind turbine should automatically yaw to face the wind, absorb wind energy as much as possible, and reduce power loss. In the yaw control system of the existing wind turbines, in order to reduce the number of yaw actions and reduce the fatigue load of the yaw mechanism, the wind direction is judged by the average value over a period of time, which can avoid the yaw caused by the instantaneous wind direction change. However, the time selection is very important. If the time selection is too long, the yaw action will cause a large power loss. If the time selection is too short, the yaw action will be too frequent. service life. Contents o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/00
CPCF03D7/0204F05B2270/329Y02E10/72
Inventor 蒋说东霍连文
Owner INNER MONGOLIA GEOHO ENERGY TECH
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