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A protection and control method for wind turbines based on wind direction and azimuth

A technology for protection and control of wind turbines, applied in the control of wind turbines, monitoring of wind turbines, wind turbines, etc., can solve problems such as increased equipment costs, failure of active power cable anti-excessive twist protection, and active power cable damage. Achieve the effect of increasing hardware costs

Active Publication Date: 2022-02-11
XEMC WINDPOWER CO LTD
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AI Technical Summary

Problems solved by technology

If the twisted cable sensor is abnormal, the protection against excessive twisting of the main power cable will fail, which may cause damage to the main power cable due to excessive twisting
In order to prevent the protection failure caused by the abnormality of the twisted cable sensor, it is generally necessary to increase the spare twisted cable sensor, which will inevitably increase the equipment cost

Method used

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  • A protection and control method for wind turbines based on wind direction and azimuth

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] Such as figure 1 As shown, a wind turbine protection control method based on wind direction and azimuth is characterized in that it includes the following steps:

[0034] Step 1: Calibrate the wind direction and azimuth angles of the units in the wind farm.

[0035] The specific process is: manually obtain the actual wind direction and azimuth angle of the unit through the compass and longitude and latitude equipment, and adjust the wind direction compensation value β of the unit k , to calibrate the wind direction and azimuth of the unit, and finally complete the wind direction and azimuth of all the units in the wind farm to be consistent with the actual wind direction and azimuth of the unit.

[0036] Step 2: Record the historical data of the wind direction and azimuth angle of the unit, and establish a unit group database according to the a...

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Abstract

The invention discloses a protection and control method for wind power generators based on wind direction and azimuth, which comprises the following steps: Step 1: Calibrate the wind direction and azimuth angles of the units in the wind farm; Step 2: Record the historical data of the wind direction and azimuth angles of the units, Establish a unit grouping database in the azimuth area; Step 3: The wind speed of the wind farm reaches the effective wind speed of the wind farm, and the unit status meets the conditions and enters the wind direction and azimuth protection control mode; Step 4: The wind direction and azimuth of the unit in the wind direction and azimuth protection control mode is abnormal An alarm is triggered. The invention does not need to add additional sensors, and the unit grouping database can be established according to the azimuth area of ​​the wind farm; and by judging the abnormality of the wind direction and azimuth angle measured by the units in the group, the wind direction of the wind power unit and the abnormal protection control of the twisted cable sensor can be realized .

Description

technical field [0001] The invention relates to the field of wind power, in particular to a method for protection and control of wind power generators based on wind direction and azimuth. Background technique [0002] The wind power generating set measures the angle between the axis direction of the impeller of the unit and the direction of the incoming wind through the wind direction measuring equipment, and controls the yaw action of the unit based on this. The angle measured by the wind direction measuring device is inaccurate due to factors such as manual installation and alignment deviation of the wind direction measuring equipment, loose wind direction measuring equipment, or problems with the wind measuring equipment itself, the unit cannot be fully aligned with the incoming wind direction, and the wind rotor cannot be fully utilized Wind energy causes the unit load to be too large and affects economic benefits. [0003] At present, the problem of the wind direction ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D7/04F03D17/00
CPCF03D7/042F03D7/0204F03D17/00Y02E10/72
Inventor 刘乔曾冰熊弦邓栋尹业峰
Owner XEMC WINDPOWER CO LTD
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