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Lubricating method and device for variable propeller gear ring of wind power generation unit

A wind turbine and ring gear technology, which is used in the monitoring of wind turbines, wind power generation, wind turbines, etc., can solve the problem that the inner and outer rings of the pitch gear are small in motion, the pitch range is small, and the pitch gear cannot be fully lubricated. And other issues

Active Publication Date: 2017-11-21
新疆海装风电设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, centralized lubrication is mostly used for the pitch ring gear lubrication of wind turbines. The most common control method is to control the lubrication time and frequency by each lubrication pump in the pitch. When the unit has not been in operation for a long time or the blades are kept at around 0° for a long time At this time, due to the small pitch range of the unit blades or complete static, the movement of the inner and outer rings of the pitch ring gear is small, resulting in the problem that the pitch ring gear cannot be fully lubricated

Method used

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  • Lubricating method and device for variable propeller gear ring of wind power generation unit
  • Lubricating method and device for variable propeller gear ring of wind power generation unit
  • Lubricating method and device for variable propeller gear ring of wind power generation unit

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Embodiment 1

[0043] See figure 1 This embodiment discloses a method for lubricating the pitch gear ring of a wind turbine, and the method specifically includes the following steps:

[0044] Step S101: in the first preset period, monitor the position angle of each blade in the wind turbine in real time, and calculate the average blade position angle of the wind turbine in real time;

[0045] Specifically, the device for real-time monitoring of the position and angle of each blade is an angle encoder or any other device that can realize real-time monitoring of the position and angle of the blade. Take a wind turbine with three blades as an example. The three blades of the wind turbine are called blade 1, blade 2, and blade 3. Similarly, three blades will have three blade position angle values, which are Blade 1 position angle θ1, blade 2 position angle θ2, blade 3 position angle θ3. Normally, the position and angle of the three blades of the wind turbine are basically the same, otherwise it will...

Embodiment 2

[0062] See figure 2 This embodiment discloses a method for lubricating the pitch gear ring of a wind turbine. On the basis of the first embodiment, in step S203: when the angle difference calculated in the first preset period is continuously smaller than the preset angle θ When determining the current operating state of the wind turbine, it also includes:

[0063] Step S205: If the current operating state of the wind turbine generator is in the standby state, determine whether the wind turbine generator currently has a fault; if there is no fault, lubricate the pitch gear ring according to the preset second lubrication rule .

[0064] Specifically, according to the preset second lubrication rule, the specific execution process of lubricating the pitch gear ring is: the unit controls the pitch drive blades to complete a "stop position-minimum pitch operation angle-stop position" Operation, so that the pitch gear ring is fully lubricated.

[0065] Preferably, after lubricating the p...

Embodiment 3

[0069] See image 3 This embodiment discloses a method for lubricating the pitch ring gear of a wind turbine. Based on the first embodiment, if the current operating state of the wind turbine is in the power generation state, it is determined whether the real-time wind speed of the wind turbine is less than The preset wind speed; if it is less than, according to the preset first lubrication rule, lubricating the pitch gear ring includes the following steps:

[0070] Step S304: If the current operating state of the wind turbine generator is in the power generation state, determine whether the real-time wind speed of the wind turbine generator is less than the preset wind speed; if so, perform step S305; if otherwise, perform step S306;

[0071] Step S305: Lubricate the pitch gear ring according to the preset first lubrication rule;

[0072] Step S306: When it is determined that the real-time wind speed of the wind turbine is greater than the preset wind speed, continue to monitor the ...

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Abstract

The invention provides a lubricating method and device for a variable propeller gear ring of a wind power generation unit. In a first preset period, the position angle of each blade in the wind power generation unit is monitored in real time, and the average blade position angle of the wind power generation unit is calculated in real time; the angle difference value between the maximum value and the minimal value of the average blade position angle in the first preset period is calculated in real time; when the angle difference value obtained through calculation in the first preset period is constantly less than a preset angle phi, the current operation state of the wind power generation unit is judged; if the current operation state of the wind power generation unit is in a power generating state, whether the real-time wind speed of the wind power generation unit is less than a preset wind speed or not is judged; and if yes, lubricating is conducted on the variable propeller gear ring according to a preset first lubricating rule. Based on the lubricating method for the variable propeller gear ring of the wind power generation unit, the problem that the variable propeller gear ring cannot be fully lubricated due to the fact that the actuating quantity of an outer ring of the variable propeller gear ring is low caused by a small propeller variation range or complete static of the blades of the generation unit.

Description

Technical field [0001] The invention relates to the field of wind power generation, and more specifically, to a method and device for lubricating a pitch gear ring of a wind turbine Background technique [0002] The wind turbine lubricates the pitch ring gear and the drive pinion through the pitch lubrication pinion. When the lubrication is in progress, the lubrication pinion meshes with the drive pinion so that the surface of the drive pinion is coated with grease. When propeller is being propeller, the driving pinion which is coated with grease lubricates the pitch gear ring. [0003] At present, most of the variable pitch gear ring lubrication of wind turbines uses centralized lubrication. The most common control method is to control the lubrication time and lubrication frequency by the lubrication pumps in the variable pitch. When the unit is not running for a long time or the blades are kept at about 0° At this time, due to the small pitch range of the blades of the unit or c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/70F03D17/00
CPCY02E10/72
Inventor 张帆黄金余刘亚林杨兴华刘杰张海亚
Owner 新疆海装风电设备有限公司