Yaw control method and yaw control device for wind turbine generator system

A technology of wind turbine and yaw control, which is applied in the control of wind turbines, wind turbines, wind power generation, etc. It can solve problems such as wind direction prediction of wind turbines, and achieve the effect of improving the efficiency of wind energy utilization

Active Publication Date: 2018-02-02
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The time of yaw or yaw against the wind is longer, and for a single wind turbine, the loss of power generation in a short period of time is small, but for multiple wind farms, the loss of power generation in a long period of time is immeasurable
Predicting the wind direction, yaw or face the wind in advance can greatly improve the wind energy utilization efficiency of the wind turbine. For mountain wind farms, the terrain and atmospheric temperature have a great influence on the wind direction and wind speed, which is difficult Accurate prediction of wind direction for wind turbines in mountainous wind farms

Method used

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  • Yaw control method and yaw control device for wind turbine generator system
  • Yaw control method and yaw control device for wind turbine generator system
  • Yaw control method and yaw control device for wind turbine generator system

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Experimental program
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Embodiment 1

[0030] figure 2 It is a schematic flowchart of a yaw control method for a wind power generating set in Embodiment 1 of the present invention.

[0031] see figure 2 , a yaw control method for a wind power generating set, the control method includes S210, S220, S230 and S240.

[0032] At S210, wind condition data measured by edge reference wind turbines of the wind farm and wind condition data measured by internal wind power generators in the wind farm are acquired.

[0033] Wherein, the wind condition data measured by the edge reference fan includes the wind direction and wind speed measured by the wind vane on the edge reference fan nacelle, where the wind direction is the absolute wind direction, for example: 1 degree east by north or 10 degrees west by north and so on. The wind condition data measured by the internal wind turbines in the wind farm is the change of the wind direction data measured by the wind vane on the cabin of the internal wind turbines in the wind far...

Embodiment 2

[0044] The yaw control method of the wind power generation set provided in this embodiment is based on the technical solution of the yaw control method of the wind power generation set in Embodiment 1, wherein, in S230, according to the wind condition data of the edge reference wind turbine and the Generating the yaw control data of the internal wind generating set from the wind condition data of the internal wind generating set may be implemented in the following manner.

[0045] A first predicted wind direction of the internal wind turbine is determined based on wind condition data of the edge reference wind turbine and wind condition data of the internal wind turbine.

[0046] Wherein, the first predicted wind direction is a wind direction with a higher possibility at the next moment when the wind direction of the internal wind power generating set changes according to big data statistics.

[0047] In this embodiment, the big data statistical method referred to above is as ...

Embodiment 3

[0057] The yaw control method of the wind power generating set provided in this embodiment, this embodiment provides the technical solution of the yaw control method of the wind generating set in the first embodiment, in S230, wind power generation is generated according to the wind direction data and wind condition data of the edge reference wind turbine The way to realize the yaw control data of the crew. The difference from the second embodiment in which the yaw control data of the wind power generation unit is generated according to the wind direction data and wind condition data of the edge reference wind turbine is that in this embodiment, the first predicted wind direction in the second embodiment is passed through the second The predicted wind direction is verified, and the first predicted wind direction after verification is more accurate.

[0058] Specifically, on the basis of Embodiment 2, in the technical solution of this embodiment, the reference wind turbine on t...

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Abstract

The embodiment of the invention provides a yaw control method and a yaw control device for a wind turbine generator system. The control method comprises the following steps: acquiring the wind regimedata detected by an edge reference fan of a wind power plant and the wind regime data detected by the internal wind turbine generator system in the wind power plant; if the wind regime data of the edge reference fan is different from the wind regime data detected by the edge reference fan at the last moment, generating the yaw control data of the internal wind turbine generator system according tothe wind regime data of the edge reference fan and the wind regime data of the internal wind turbine generator system; and sending the yaw control data to a yaw control system of the internal wind turbine generator system. With the adoption of the technical scheme of the embodiment, the wind turbine generator system is controlled to carry out wind direction alignment or yaw, so that the wind energy utilization efficiency of wind turbine generators is increased.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a yaw control method and device for a wind power generating set. Background technique [0002] With the continuous expansion of the scale of wind power generation, in addition to inland and coastal areas with better wind energy resources, the demand for wind power generation in mountainous areas is also increasing. [0003] In the process of realizing the present invention, the inventors found the following problems in the prior art: During the operation of the wind power generating set, after the main control system detects the wind direction change, it controls the yaw system to yaw, and the main control system detects It takes a while from wind direction change to yaw system complete yaw. In the process of facing the wind when the wind turbine is started, if the position of the nacelle deviates greatly from the wind direction, the time to yaw against the wind is...

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 马磊李庆江
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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