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Yaw control method and device for wind turbine generators

A wind turbine, yaw control technology, applied in wind turbine combination, wind turbine control, engine control and other directions, can solve the problems of wind direction sensor failure, affecting the availability and power generation of wind turbines, to ensure normal operation, The effect of improving availability and power generation

Active Publication Date: 2015-11-11
BEIJING ETECHWIN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of wind power generation technology, wind farms in various environments have been developed, and wind turbines (referred to as "wind turbines") may fail in harsh weather conditions such as severe cold and sandstorms, especially on wind turbines. The wind direction sensor, extreme weather or long-term running aging will cause the wind direction sensor to fail
[0003] Once the wind direction sensor fails, technicians need to repair or replace the wind direction sensor under better weather conditions, and during the period before the wind direction sensor is repaired or replaced, the wind turbine cannot yaw to the wind to obtain the maximum wind energy, Even downtime, seriously affecting the availability and power generation of wind turbines

Method used

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  • Yaw control method and device for wind turbine generators
  • Yaw control method and device for wind turbine generators
  • Yaw control method and device for wind turbine generators

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Embodiment 1

[0023] figure 1 It is a method flow chart of an embodiment of the yaw control method of wind turbines provided by the present invention, and the execution subject of the method may be an integrated control device for controlling the operation status of each wind turbine in a wind farm. Such as figure 1 As shown, the wind turbine yaw control method includes:

[0024] S101. When a wind direction sensor of a wind turbine fails, extract current operation data of an adjacent wind turbine adjacent to the faulty wind turbine, and obtain first wind information at a current moment represented by the current operation data.

[0025] Usually, in a wind farm, the wind environment (wind speed, wind direction) of the adjacent wind turbines is similar, and the wind environment information of the location of the wind turbines can be obtained through the operation data of the wind turbines, especially with The data related to yaw control (such as the yaw position of the unit, the wind direct...

Embodiment 2

[0035] figure 2 The method flow chart of another embodiment of the wind turbine yaw control method provided by the present invention, the method can be regarded as figure 1 A specific implementation manner of the shown method embodiment. Such as figure 2 As shown, the wind turbine yaw control method includes:

[0036] S201. Detect whether the wind direction sensor fails.

[0037] In this embodiment, in order to timely and accurately detect the failure of the wind direction sensor of the wind turbine, two methods are used to detect whether the wind direction sensor fails: extract the wind speed detected by each wind turbine and the output power of the wind turbine; when the detection angle of the wind direction sensor There is no change in the continuous time period exceeding the set time threshold (for example, when the wind speed is not greater than 5m / s, the set time threshold is 90s; when the wind speed is greater than 5m / s, the set time threshold is 30s), or the wind ...

Embodiment 3

[0060] Figure 4 A structural schematic diagram of an embodiment of a wind turbine yaw control device provided by the present invention, which can be used to implement figure 1 The method steps of the shown embodiment, as Figure 4 As shown, the wind turbine yaw control device includes: a first wind information acquisition unit 401, a second wind information acquisition unit 402, and a yaw control unit 403; wherein:

[0061] The first wind information acquisition unit 401 is configured to extract the current operating data of an adjacent wind turbine adjacent to the faulty wind turbine when the wind direction sensor of the wind turbine fails, and obtain the current moment represented by the current operation data first wind information;

[0062] The second wind information acquisition unit 402 is configured to extract the historical operation data of the faulty wind turbine at each time, and obtain the second wind information that matches the first wind information among the...

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Abstract

The invention provides a yaw control method and device for wind turbine generators. The method includes the steps that when a wind transducer of one wind turbine generator breaks down, current operating data of one adjacent wind turbine generator adjacent to the breakdown wind turbine generator are extracted, and first wind information represented by the current operating data at the present moment is acquired; the historical operating data of the breakdown wind turbine generator at all the moments are extracted, and second wind information matched with the first wind information in the wind information represented by the historical operating data at all the moments is acquired; and yaw control is conducted on the breakdown wind turbine generator according to the second wind information. According to the technical scheme, when the wind transducer breaks down, the wind turbine generators can operate normally, and thus the utilization rate and the generating capacity of the wind turbine generators are effectively increased.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a method and device for controlling the yaw of a wind turbine. Background technique [0002] With the rapid development of wind power generation technology, wind farms in various environments have been developed, and wind turbines (referred to as "wind turbines") may fail in harsh weather conditions such as severe cold and sandstorms, especially on wind turbines. Extreme weather or long-term aging will cause the wind direction sensor to fail. [0003] Once the wind direction sensor fails, technicians need to repair or replace the wind direction sensor under better weather conditions, and during the period before the wind direction sensor is repaired or replaced, the wind turbine cannot yaw to the wind to obtain the maximum wind energy, Even downtime seriously affects the availability and power generation of wind turbines. Contents of the invention [0004] Embodiments of t...

Claims

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Application Information

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IPC IPC(8): F03D7/04
CPCF03D7/047F03D17/00F05B2260/845F03D7/0204F03D7/048F05B2270/32F05B2270/321F05B2270/329Y02E10/72F03D9/257F03D7/04F05B2260/80F05B2270/20F05B2270/335G05B15/02
Inventor 陈勇
Owner BEIJING ETECHWIN ELECTRIC
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