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Wind indicator zero calibration method of wind generating set

A technology for wind turbines and wind turbines, which is used in the testing/calibration of speed/acceleration/impact measurement equipment, measurement devices, instruments, etc., and can solve the problem of increased labor costs, random errors, and offset of the zero position of the wind vane and the axis of the nacelle, etc. problems, to achieve the effect of improving power generation efficiency, reducing work tasks, and reducing operation and maintenance risks

Active Publication Date: 2019-10-08
XEMC WINDPOWER CO LTD +1
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Problems solved by technology

[0003] After the wind turbine has been running for a period of time, due to the influence of systematic errors and random errors in the wind vane, the zero position of the wind vane and the axis of the nacelle will deviate to a certain extent, which will affect the yaw control accuracy of the wind turbine and reduce the power generation efficiency of the wind turbine.
Regularly manually calibrating the wind vane is an effective way to solve this problem, but this method needs to greatly increase labor costs and has certain random errors and potential risks

Method used

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  • Wind indicator zero calibration method of wind generating set

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings.

[0039] Such as figure 1 Shown, the present invention comprises the steps:

[0040] 1) According to the specified time period T 1 Execute the zero calibration task of wind direction regularly or at a specified time; when the wind turbine unit executes the zero calibration task of wind direction calibration, the wind turbine unit enters the zero calibration mode of wind direction calibration and starts zero calibration of wind direction calibration.

[0041] 2) Adjust the wind vane angle compensation, collect and record the fan operation data, the specific operation is as follows:

[0042] 2.1) Set the wind turbine vane compensation angle to 0°;

[0043] 2.2) The operation data collection module collects the real-time operation data of the fan according to the given data collection period and records them in the data storage module. The collection period is T 2 for 1...

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Abstract

The invention discloses a wind indicator zero calibration method of a wind generating set. The method comprises the following steps: step one, entering a wind indicator zero calibration mode of a windgenerating set; step two, adjusting wind indicator angle compensation and collecting and recording running data of a fan; step three, constructing a fan running efficiency model for the first time and calculating a wind indicator correction angle corresponding to the optimal efficiency; step four, according to a calculation result from the step three, determining a secondary wind indication anglecompensation direction, adjusting wind indicator angle compensation again, and collecting and recording running data of the fan; step five, reconstructing the fan running efficiency model and calculating a wind indicator correction angle corresponding to the optimal efficiency; and step six, according to a calculation result from the step five, carrying out automatic zero calibration on the windindicator or sending out prompting information. According to the invention, with full consideration of the influence on the generation efficiency of the wind generating set by the included angle between the wind indicator zero position and the axis of a cabin, the fan can work at an optimal output state all the time, so that the work intensity and safety risk of the operation and maintenance personnel are reduced and the operating efficiency and the generation benefit of the wind generating set are guaranteed.

Description

technical field [0001] The invention relates to the field of wind power generators, in particular to a method for zeroing the wind direction calibration of a wind power generator set. Background technique [0002] In recent years, with the increasing number of installed wind turbines, wind farm owners and host manufacturers have shifted their focus from installed capacity to wind turbine operating efficiency. Utilization rate and full delivery hours have great research value and guiding significance. [0003] After the wind turbine has been in operation for a period of time, due to the influence of systematic errors and random errors in the wind vane, the zero position of the wind vane and the axis of the nacelle have a certain offset, which affects the yaw control accuracy of the wind turbine and reduces the power generation efficiency of the wind turbine. Regularly manually calibrating the wind vane is an effective way to solve this problem, but this method needs to great...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P13/02G01P21/00
CPCG01P13/02G01P21/00
Inventor 曹俊伟黄凌翔张硕望
Owner XEMC WINDPOWER CO LTD
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