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Method for controlling wear monitoring of yaw brake friction plate of wind power generator set

A technology for wind turbines and yaw brakes, which is applied in the control of wind turbines, wind turbines, and wind power generation, etc., can solve the difference in the wear rate of the yaw friction plates of the unit, the different yaw frequency and angle of the unit, and the yaw control. It can reduce the loss, reduce the time of downtime and maintenance, and improve the utilization rate.

Active Publication Date: 2018-12-21
HUAYI WIND ENERGY CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, in a wind field, different units usually have different yaw frequencies and angles due to different machine positions, resulting in the problem of differences in the wear rate of the yaw friction plates of the units.
The current monitoring method requires maintenance personnel to check the wear state of the brake friction lining at regular intervals, which is labor-intensive. If the check is not timely, it will also cause damage to the yaw brake disc.
Or add a wear sensor on the yaw brake to perform thickness detection and increase the production cost of the product

Method used

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  • Method for controlling wear monitoring of yaw brake friction plate of wind power generator set
  • Method for controlling wear monitoring of yaw brake friction plate of wind power generator set
  • Method for controlling wear monitoring of yaw brake friction plate of wind power generator set

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] Such as figure 1 As shown in the present invention, a control method for monitoring the friction lining wear of the yaw brake of a wind power generating set, the control method is as follows:

[0022] Step 1: First set the friction material alarm thickness of the yaw friction plate (a safe value used to prevent the brake disc from being damaged due to the exhaustion of the friction material). When the wind turbine yaws, if the average yaw during the yaw process If the residual pressure is greater than or equal to 5bar, the yaw angle is accumulated to the wear angle, and the yaw angle is collected by a yaw proximity switch or a yaw encoder.

[0023] Step 2: at least calculate the friction material thickness of the current yaw friction plate by using the wear angle.

[0024] Step 3: Compare the current friction material thickness of the yaw friction plate with...

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Abstract

The invention relates to a method for controlling wear monitoring of a yaw brake friction plate of a wind power generator set. The following technical scheme is adopted: step 1, setting a warning thickness of a friction material of the yaw friction plate, and accumulating a yaw angle to a wear angle if an average yaw residual pressure in the yawing process is larger than or equal to 5 bar after the wind power generator set yaws; step 2, calculating and obtaining the thickness of the friction material of the current yaw friction plate by at least the wear angle; step 3, comparing the thicknessof the friction material of the current yaw friction plate with the set warning thickness of the friction material, and sending a warning signal by a monitoring system if the thickness of the currentfriction material is less than or equal to the set value to remind maintenance personnel to check and replace the yaw friction plate; and step 4, resetting a total yaw angle of a system after the yawfriction plate is replaced, thereby achieving control of the wear monitoring of a new yaw brake friction plate.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a control method for monitoring wear of a yaw brake friction plate of a wind power generating set. Background technique [0002] At present, the yaw braking system of large wind turbines is mainly composed of two parts: yaw brake and yaw brake disc. Among them, the yaw brake disc and the yaw slewing bearing are connected and fixed by bolts so that they can move synchronously; the yaw brake has three states: one is the yaw brake state, at this time the yaw brake is fully pressed, and the yaw brake The friction plate and the yaw brake disc are pressed tightly to make the wind turbine run stably facing the wind direction to generate electricity; the second is the yaw half-open state (yaw process), at this time the yaw brake still has residual pressure, and the yaw brake friction plate and The contact friction of the yaw brake disc ensures the stable yaw of the wind tu...

Claims

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Application Information

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IPC IPC(8): F16D66/02F03D7/02
CPCF03D7/0248F16D66/022Y02E10/72
Inventor 何伟伦张梦丽黄文才付守立
Owner HUAYI WIND ENERGY CO LTD
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