阅读说明：本技术 风力发电机组控制方法 (Control method of wind generating set ) 是由 王浩 王岳峰 王晓东 王森 姜宏伟 黄虎 朱少辉 于 2020-12-16 设计创作，主要内容包括：本发明公开了一种风力发电机组控制方法,该方法包括：实时采集风速风向信息,计算当前风速下的湍流值；实时测量风力发电机组关键部位的振动值,并分别针对每个关键部位设置振动阈值；根据风机设计湍流等级设置多级湍流设定值；根据风机设计湍流等级和多级湍流设定值设置波动风速；基于当前风速与风机额定风速、波动风速和切出风速的大小关系,根据当前风速湍流值与多级湍流设定值的大小关系、以及风力发电机组关键部位的振动值与振动阈值的大小关系,控制风力发电机组收桨、收桨运行、正常运行或停机。本发明的方法针对不同的风速和不同风速下的湍流值采取不同的风力发电机组主动控制方式,能够降低风力发电机组的载荷,保证风电机组的安全运行。(The invention discloses a control method of a wind generating set, which comprises the following steps: acquiring wind speed and wind direction information in real time, and calculating a turbulence value at the current wind speed; measuring vibration values of key parts of the wind generating set in real time, and setting a vibration threshold value aiming at each key part respectively; setting a multi-stage turbulence set value according to the designed turbulence level of the fan; setting a fluctuating wind speed according to the designed turbulence grade of the fan and the multi-stage turbulence set value; and controlling the wind generating set to close the propeller, close the propeller to run, normally run or stop according to the magnitude relation between the current wind speed turbulence value and the multi-stage turbulence set value and the magnitude relation between the vibration value of the key part of the wind generating set and the vibration threshold value based on the magnitude relation between the current wind speed and the rated wind speed, the fluctuation wind speed and the cut-out wind speed of the fan. The method of the invention adopts different active control modes of the wind generating set aiming at different wind speeds and turbulence values under different wind speeds, can reduce the load of the wind generating set and ensure the safe operation of the wind generating set.)

1. A method for controlling a wind turbine generator system, the method comprising:

acquiring wind speed and wind direction information in real time, and calculating a turbulence value at the current wind speed;

measuring vibration values of key parts of the wind generating set in real time, and setting a vibration threshold value aiming at each key part respectively;

setting a multi-stage turbulence set value according to the designed turbulence level of the fan;

setting a fluctuating wind speed according to the designed turbulence grade of the fan and the multi-stage turbulence set value;

and controlling the wind generating set to close the propeller, close the propeller to run, normally run or stop according to the magnitude relation between the current wind speed turbulence value and the multi-stage turbulence set value and the magnitude relation between the vibration value of the key part of the wind generating set and the vibration threshold value based on the magnitude relation between the current wind speed and the rated wind speed, the fluctuation wind speed and the cut-out wind speed of the fan.

2. The wind turbine generator set control method of claim 1, wherein the primary turbulence set point and the secondary turbulence set point are set according to a fan design turbulence level.

3. The control method of the wind generating set according to claim 2, wherein the primary turbulence set value of each wind speed is equal to 1.1 times the respective wind speed turbulence intensity corresponding to the fan design turbulence class, and the secondary turbulence set value of each wind speed is equal to 1.2 times the respective wind speed turbulence intensity corresponding to the fan design turbulence class.

4. The wind generating set control method according to claim 2 or 3, wherein the controlling of the pitch, the pitch running, the normal running or the shutdown of the wind generating set according to the magnitude relation between the current wind speed and the rated wind speed of the wind turbine, the fluctuating wind speed and the cut-out wind speed, the magnitude relation between the current wind speed turbulence value and the multi-stage turbulence set value, and the magnitude relation between the vibration value of the key part of the wind generating set and the vibration threshold value comprises:

when the current wind speed is lower than the rated wind speed, controlling the wind generating set to close the propeller, and to operate the propeller or normally operate the wind generating set according to the magnitude relation between the current wind speed turbulence value and the set value of the secondary turbulence and the magnitude relation between the vibration value of the key part of the wind generating set and the vibration threshold value;

when the current wind speed is greater than or equal to the rated wind speed and less than or equal to the fluctuating wind speed, controlling the wind generating set to close the propellers, close the propellers to operate, normally operate or stop according to the magnitude relation between the current wind speed turbulence value and the primary turbulence set value, the magnitude relation between the current wind speed turbulence value and the secondary turbulence set value and the magnitude relation between the vibration value of the key part of the wind generating set and the vibration threshold value;

and when the current wind speed is greater than the fluctuation wind speed and less than or equal to the cut-out wind speed, controlling the wind generating set to close the propeller, and operating the wind generating set or normally operating the wind generating set according to the magnitude relation between the current wind speed turbulence value and the primary turbulence set value and the magnitude relation between the vibration value of the key part of the wind generating set and the vibration threshold value.

5. The wind generating set control method according to claim 4, wherein when the current wind speed is lower than the rated wind speed, controlling the wind generating set to pitch, pitch or normally operate according to the magnitude relation between the current wind speed turbulence value and the secondary turbulence set value and the magnitude relation between the vibration value of the key part of the wind generating set and the vibration threshold value comprises:

if the current wind speed turbulence value is less than or equal to the second-level turbulence set value, controlling the wind generating set to keep normal operation;

and if the current wind speed turbulence value is larger than the second-level turbulence set value, controlling the wind generating set to retract the propeller, continuously comparing the vibration value with the vibration threshold value in the propeller retracting process, continuing to retract the propeller when the vibration value is larger than the vibration threshold value, and controlling the wind generating set to operate at the current pitch angle when the vibration values are smaller than or equal to the vibration threshold value.

6. The wind generating set control method according to claim 4 or 5, wherein when the current wind speed is greater than or equal to the rated wind speed and less than or equal to the fluctuating wind speed, controlling the pitch, the pitch operation, the normal operation or the shutdown of the wind generating set according to the magnitude relation between the current wind speed turbulence value and the primary turbulence set value, the magnitude relation between the current wind speed turbulence value and the secondary turbulence set value, and the magnitude relation between the vibration value of the key part of the wind generating set and the vibration threshold value, comprises:

if the current wind speed turbulence value is less than or equal to the primary turbulence set value, controlling the wind generating set to keep normal operation;

if the current wind speed turbulence value is larger than the primary turbulence set value, judging whether the current wind speed turbulence value is larger than the secondary turbulence set value;

if the current wind speed turbulence value is larger than the second-level turbulence set value, controlling the wind generating set to stop;

and if the current wind speed turbulence value is less than or equal to the second-stage turbulence set value, controlling the wind generating set to retract the propeller, continuously comparing the vibration value with the vibration threshold value in the propeller retracting process, continuing to retract the propeller when the vibration value is greater than the vibration threshold value, and controlling the wind generating set to operate at the current pitch angle when the vibration values are less than or equal to the vibration threshold value.

7. The control method of the wind generating set according to claim 4, 5 or 6, wherein when the current wind speed is greater than the fluctuating wind speed and less than or equal to the cut-out wind speed, controlling the wind generating set to pitch up, pitch down or normal operation according to the magnitude relation between the current wind speed turbulence value and the primary turbulence set value and the magnitude relation between the vibration value of the key part of the wind generating set and the vibration threshold value, comprises:

if the current wind speed turbulence value is less than or equal to the primary turbulence set value, controlling the wind generating set to keep normal operation;

and if the current wind speed turbulence value is larger than the first-level turbulence set value, controlling the wind generating set to retract the propeller, continuously comparing the vibration value with the vibration threshold value in the propeller retracting process, continuing to retract the propeller when the vibration value is larger than the vibration threshold value, and controlling the wind generating set to operate at the current pitch angle when the vibration value is smaller than or equal to the vibration threshold value.

8. The wind park control method according to claim 1, wherein the method further comprises: and if the current wind speed is greater than the cut-out wind speed, controlling the wind generating set to stop.

9. The control method of the wind generating set according to claim 1, wherein the wind speed and direction information is collected in real time by using a laser radar.

10. The wind turbine generator system control method according to claim 1, wherein the wind turbine generator system key parts comprise: blade root, main shaft, main frame, speed increaser, generator and tower section of thick bamboo.

Technical Field

The invention relates to the technical field of wind generating sets, in particular to a control method of a wind generating set.

Background

The wind generating set is a device for generating power by controlling a variable pitch system to rotate blades so as to absorb wind energy. In the actual operation of the wind generating set, turbulence is one of important factors influencing the power generation and safety performance of the wind generating set.

In actual operation, turbulence at the actual position of the wind generating set is influenced by various factors such as terrain, wake flow and the like, and often exceeds the standard design grade of a fan, and the turbulence has high randomness and no obvious change rule at different wind speeds. At present, when the situation of large turbulence is faced, a wind turbine generator is generally accepted passively, an active control strategy is not adopted, so that the wind turbine generator bears large load, certain potential safety hazards exist, and the wind turbine generator can be damaged in serious cases.

Disclosure of Invention

In order to solve part or all of the technical problems in the prior art, the invention provides a control method of a wind generating set.

The invention discloses a control method of a wind generating set, which comprises the following steps:

acquiring wind speed and wind direction information in real time, and calculating a turbulence value at the current wind speed;

measuring vibration values of key parts of the wind generating set in real time, and setting a vibration threshold value aiming at each key part respectively;

setting a multi-stage turbulence set value according to the designed turbulence level of the fan;

setting a fluctuating wind speed according to the designed turbulence grade of the fan and the multi-stage turbulence set value;

and controlling the wind generating set to close the propeller, close the propeller to run, normally run or stop according to the magnitude relation between the current wind speed turbulence value and the multi-stage turbulence set value and the magnitude relation between the vibration value of the key part of the wind generating set and the vibration threshold value based on the magnitude relation between the current wind speed and the rated wind speed, the fluctuation wind speed and the cut-out wind speed of the fan.

In some alternative embodiments, the primary and secondary turbulence set points are set according to fan design turbulence levels.

In some alternative embodiments, the primary turbulence setpoint for each wind speed is equal to 1.1 times the respective wind speed turbulence intensity for the fan design turbulence level, and the secondary turbulence setpoint for each wind speed is equal to 1.2 times the respective wind speed turbulence intensity for the fan design turbulence level.

In some optional embodiments, the controlling the wind generating set to pitch, pitch operation, normal operation or shutdown based on the magnitude relationship between the current wind speed and the rated wind speed, the fluctuating wind speed and the cut-out wind speed of the wind turbine, the magnitude relationship between the current wind speed turbulence value and the multi-stage turbulence set value, and the magnitude relationship between the vibration value of the key part of the wind generating set and the vibration threshold value includes:

when the current wind speed is lower than the rated wind speed, controlling the wind generating set to close the propeller, and to operate the propeller or normally operate the wind generating set according to the magnitude relation between the current wind speed turbulence value and the set value of the secondary turbulence and the magnitude relation between the vibration value of the key part of the wind generating set and the vibration threshold value;

when the current wind speed is greater than or equal to the rated wind speed and less than or equal to the fluctuating wind speed, controlling the wind generating set to receive the propellers, receive the propellers for operation, normally operate or stop according to the magnitude relation between the current wind speed turbulence value and the primary turbulence set value, the magnitude relation between the turbulence value and the secondary turbulence set value, and the magnitude relation between the vibration value of the key part of the wind generating set and the vibration threshold value;

and when the current wind speed is greater than the fluctuation wind speed and less than or equal to the cut-out wind speed, controlling the wind generating set to close the propeller, and operating the wind generating set or normally operating the wind generating set according to the magnitude relation between the current wind speed turbulence value and the primary turbulence set value and the magnitude relation between the vibration value of the key part of the wind generating set and the vibration threshold value.

In some optional embodiments, when the current wind speed is lower than the rated wind speed, controlling the wind generating set to pitch, pitch-in or normal operation according to the magnitude relationship between the current wind speed turbulence value and the secondary turbulence set value and the magnitude relationship between the vibration value of the key part of the wind generating set and the vibration threshold value, includes:

if the current wind speed turbulence value is less than or equal to the second-level turbulence set value, controlling the wind generating set to keep normal operation;

and if the current wind speed turbulence value is larger than the second-level turbulence set value, controlling the wind generating set to retract the propeller, continuously comparing the vibration value with the vibration threshold value in the propeller retracting process, continuing to retract the propeller when the vibration value is larger than the vibration threshold value, and controlling the wind generating set to operate at the current pitch angle when the vibration values are smaller than or equal to the vibration threshold value.

In some optional embodiments, when the current wind speed is greater than or equal to the rated wind speed and less than or equal to the fluctuating wind speed, controlling the wind turbine generator system to pitch, normal operation or shutdown according to the magnitude relationship between the current wind speed turbulence value and the primary turbulence set value, the magnitude relationship between the current wind speed turbulence value and the secondary turbulence set value, and the magnitude relationship between the vibration value of the key part of the wind turbine generator system and the vibration threshold value, the method includes:

if the current wind speed turbulence value is less than or equal to the primary turbulence set value, controlling the wind generating set to keep normal operation;

if the current wind speed turbulence value is larger than the primary turbulence set value, judging whether the current wind speed turbulence value is larger than the secondary turbulence set value;

if the current wind speed turbulence value is larger than the second-level turbulence set value, controlling the wind generating set to stop;

and if the current wind speed turbulence value is less than or equal to the second-stage turbulence set value, controlling the wind generating set to retract the propeller, continuously comparing the vibration value with the vibration threshold value in the propeller retracting process, continuing to retract the propeller when the vibration value is greater than the vibration threshold value, and controlling the wind generating set to operate at the current pitch angle when the vibration values are less than or equal to the vibration threshold value.

In some optional embodiments, when the current wind speed is greater than the fluctuating wind speed and less than or equal to the cut-out wind speed, controlling the wind turbine generator system to pitch, pitch or normally operate according to a magnitude relationship between the current wind speed turbulence value and the primary turbulence set value and a magnitude relationship between a vibration value of a key part of the wind turbine generator system and a vibration threshold value, including:

if the current wind speed turbulence value is less than or equal to the primary turbulence set value, controlling the wind generating set to keep normal operation;

and if the current wind speed turbulence value is larger than the first-level turbulence set value, controlling the wind generating set to retract the propeller, continuously comparing the vibration value with the vibration threshold value in the propeller retracting process, continuing to retract the propeller when the vibration value is larger than the vibration threshold value, and controlling the wind generating set to operate at the current pitch angle when the vibration value is smaller than or equal to the vibration threshold value.

In some optional embodiments, the method further comprises: and if the current wind speed is greater than the cut-out wind speed, controlling the wind generating set to stop.

In some optional embodiments, the wind speed and direction information is collected in real time by using a laser radar.

In some optional embodiments, the wind turbine generator set key parts include: blade root, main shaft, main frame, speed increaser, generator and tower section of thick bamboo.

The technical scheme of the invention has the following main advantages:

according to the control method of the wind generating set, the multistage turbulence set value and the vibration threshold value are set, the vibration value of the wind generating set is monitored in real time, different active control modes of the wind generating set are adopted according to turbulence values at different wind speeds and different wind speeds, the load of the wind generating set can be reduced, and the safe operation of the wind generating set is guaranteed.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. On the attachment

In the figure:

FIG. 1 is a flow chart of a wind turbine generator system control method according to an embodiment of the present invention;

fig. 2 is a flowchart of a control method of a wind turbine generator system according to example 1 in an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

The technical scheme provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.

Referring to fig. 1, an embodiment of the present invention provides a wind turbine generator system control method, including:

acquiring wind speed and wind direction information in real time, and calculating a turbulence value at the current wind speed;

measuring vibration values of key parts of the wind generating set in real time, and setting a vibration threshold value aiming at each key part respectively;

setting a multi-stage turbulence set value according to the designed turbulence level of the fan;

setting a fluctuating wind speed according to the designed turbulence grade of the fan and the multi-stage turbulence set value;

and controlling the wind generating set to close the propeller, close the propeller to run, normally run or stop according to the magnitude relation between the current wind speed turbulence value and the multi-stage turbulence set value and the magnitude relation between the vibration value of the key part of the wind generating set and the vibration threshold value based on the magnitude relation between the current wind speed and the rated wind speed, the fluctuation wind speed and the cut-out wind speed of the fan.

The design turbulence level of the fan represents the IEC fan level, different IEC fan levels have corresponding wind speed turbulence intensity, and the wind speed turbulence intensity corresponding to different IEC fan levels can be obtained by referring to the IEC61400-1 standard.

In one embodiment of the invention, the fluctuating wind speed is between the rated wind speed and the cut-out wind speed, and the specific value of the fluctuating wind speed can be determined according to the designed turbulence level of the fan and the multi-stage turbulence set value.

In one embodiment of the present invention, the number of multi-stage turbulence settings may be determined based on actual control requirements.

Optionally, as an example, the multi-level turbulence setpoint may include a primary turbulence setpoint and a secondary turbulence setpoint.

Further, specific values of the primary turbulence set value and the secondary turbulence set value can be determined according to actual conditions.

Optionally, as an example, the primary turbulence setting value of each wind speed may be equal to 1.1 times of the wind speed turbulence intensity corresponding to the fan design turbulence level, and the secondary turbulence setting value of each wind speed may be equal to 1.2 times of the wind speed turbulence intensity corresponding to the fan design turbulence level.

On the basis of the specifically set primary turbulence set value and secondary turbulence set value, the fluctuating wind speed can be determined in the following manner: when the actual turbulence intensity at a wind speed is 1.2 times of the turbulence intensity at the wind speed corresponding to the IEC standard turbulence level, the load borne by the fan is equal to the load borne by the fan when the wind speed is cut out from the standard turbulence level, and the wind speed is the fluctuating wind speed.

The following describes an example of a wind turbine generator system control method according to an embodiment of the present invention based on a specifically set primary turbulence set value and secondary turbulence set value.

Specifically, in an embodiment of the present invention, based on the magnitude relationship between the current wind speed and the rated wind speed, the fluctuating wind speed, and the cut-out wind speed of the wind turbine, controlling the pitch adjustment, the pitch adjustment operation, the normal operation, or the shutdown of the wind turbine generator system according to the magnitude relationship between the current wind speed turbulence value and the multi-stage turbulence set value, and the magnitude relationship between the vibration value of the key part of the wind turbine generator system and the vibration threshold value may include:

when the current wind speed is lower than the rated wind speed, controlling the wind generating set to close the propeller, and to operate the propeller or normally operate the wind generating set according to the magnitude relation between the current wind speed turbulence value and the set value of the secondary turbulence and the magnitude relation between the vibration value of the key part of the wind generating set and the vibration threshold value;

when the current wind speed is greater than or equal to the rated wind speed and less than or equal to the fluctuating wind speed, controlling the wind generating set to close the propellers, close the propellers to operate, normally operate or stop according to the magnitude relation between the current wind speed turbulence value and the primary turbulence set value, the magnitude relation between the current wind speed turbulence value and the secondary turbulence set value and the magnitude relation between the vibration value of the key part of the wind generating set and the vibration threshold value;

and when the current wind speed is greater than the fluctuation wind speed and less than or equal to the cut-out wind speed, controlling the wind generating set to close the propeller, and operating the wind generating set or normally operating the wind generating set according to the magnitude relation between the current wind speed turbulence value and the primary turbulence set value and the magnitude relation between the vibration value of the key part of the wind generating set and the vibration threshold value.

Different wind generating set control modes are adopted according to different wind speeds and turbulence values under different wind speeds, so that the load of the wind generating set can be reduced, and the safe operation of the wind generating set is ensured.

Further, as to how to control the pitch-up and pitch-down operation or normal operation of the wind turbine generator set according to the magnitude relationship between the current wind speed turbulence value and the second-level turbulence set value and the magnitude relationship between the vibration value of the key part of the wind turbine generator set and the vibration threshold value when the current wind speed is lower than the rated wind speed, the following detailed description will be made.

Referring to fig. 2, as an example, when the current wind speed is less than the rated wind speed, controlling the wind turbine generator system to pitch up, pitch down or normal operation according to the magnitude relationship between the current wind speed turbulence value and the second-stage turbulence set value and the magnitude relationship between the vibration value of the key part of the wind turbine generator system and the vibration threshold value may include:

if the current wind speed turbulence value is less than or equal to the second-level turbulence set value, controlling the wind generating set to keep normal operation;

and if the current wind speed turbulence value is larger than the second-level turbulence set value, controlling the wind generating set to retract the propeller, continuously comparing the vibration value with the vibration threshold value in the propeller retracting process, continuing to retract the propeller when the vibration value is larger than the vibration threshold value, and controlling the wind generating set to operate at the current pitch angle when the vibration values are smaller than or equal to the vibration threshold value.

By adopting the control mode, the generating efficiency of the wind turbine generator can be increased as much as possible under the condition of ensuring the safe operation of the wind turbine generator.

Further, as for the case that the current wind speed is greater than or equal to the rated wind speed and less than or equal to the fluctuating wind speed, how to control the pitch adjustment, the pitch adjustment operation, the normal operation or the shutdown of the wind turbine generator system according to the magnitude relationship between the current wind speed turbulence value and the primary turbulence set value, the magnitude relationship between the current wind speed turbulence value and the secondary turbulence set value, and the magnitude relationship between the vibration value of the key part of the wind turbine generator system and the vibration threshold value will be described in detail below.

Referring to fig. 2, as an example, when the current wind speed is greater than or equal to the rated wind speed and less than or equal to the fluctuating wind speed, controlling the wind turbine generator system to pitch, normal operation or shutdown according to the magnitude relationship between the current wind speed turbulence value and the primary turbulence set value, the magnitude relationship between the current wind speed turbulence value and the secondary turbulence set value, and the magnitude relationship between the vibration value of the key part of the wind turbine generator system and the vibration threshold value may include:

if the current wind speed turbulence value is less than or equal to the primary turbulence set value, controlling the wind generating set to keep normal operation;

if the current wind speed turbulence value is larger than the primary turbulence set value, judging whether the current wind speed turbulence value is larger than the secondary turbulence set value;

if the current wind speed turbulence value is larger than the second-level turbulence set value, controlling the wind generating set to stop;

and if the current wind speed turbulence value is less than or equal to the second-stage turbulence set value, controlling the wind generating set to retract the propeller, continuously comparing the vibration value with the vibration threshold value in the propeller retracting process, continuing to retract the propeller when the vibration value is greater than the vibration threshold value, and controlling the wind generating set to operate at the current pitch angle when the vibration values are less than or equal to the vibration threshold value.

By adopting the control mode, the generating efficiency of the wind turbine generator can be increased as much as possible under the condition of ensuring the safe operation of the wind turbine generator.

Further, as to how to control the pitch-up and pitch-down operation or normal operation of the wind turbine generator set according to the magnitude relationship between the current wind speed turbulence value and the primary turbulence set value and the magnitude relationship between the vibration value of the key part of the wind turbine generator set and the vibration threshold value when the current wind speed is greater than the fluctuation wind speed and less than or equal to the cut-out wind speed, the following detailed description will be made.

Referring to fig. 2, as an example, when the current wind speed is greater than the fluctuating wind speed and less than or equal to the cut-out wind speed, controlling the wind turbine generator system to pitch up, pitch down or normal operation according to the magnitude relationship between the current wind speed turbulence value and the primary turbulence set value and the magnitude relationship between the vibration value of the key part of the wind turbine generator system and the vibration threshold value may include:

if the current wind speed turbulence value is less than or equal to the primary turbulence set value, controlling the wind generating set to keep normal operation;

and if the current wind speed turbulence value is larger than the first-level turbulence set value, controlling the wind generating set to retract the propeller, continuously comparing the vibration value with the vibration threshold value in the propeller retracting process, continuing to retract the propeller when the vibration value is larger than the vibration threshold value, and controlling the wind generating set to operate at the current pitch angle when the vibration value is smaller than or equal to the vibration threshold value.

By adopting the control mode, the generating efficiency of the wind turbine generator can be increased as much as possible under the condition of ensuring the safe operation of the wind turbine generator.

Further, in an embodiment of the present invention, the method may further include: and if the current wind speed is greater than the cut-out wind speed, controlling the wind generating set to stop.

When the current wind speed is higher than the cut-out wind speed, the wind generating set is directly controlled to stop, and the wind generating set can be prevented from being damaged.

Optionally, in an embodiment of the present invention, a laser radar is used to collect wind speed and direction information in real time. Specifically, the laser radar collects wind speed and wind direction information in front of a wind wheel of the wind generating set in real time, and then calculates a turbulence value at the current wind speed by using a turbulence calculation algorithm based on the wind speed and wind direction information.

Further, in an embodiment of the invention, key parts of the wind generating set are determined according to actual requirements.

Optionally, the wind turbine generator set key parts may include, but are not limited to: blade root, main shaft, main frame, speed increaser, generator and tower section of thick bamboo.

The vibration threshold value of the key part of the wind generating set can be determined according to the structural strength of the key part, so that the key part cannot be damaged when the vibration value is within the set vibration threshold value.

Optionally, in an embodiment of the present invention, a vibration strain gauge is attached to a key portion of the wind turbine generator system to acquire a vibration value in real time.

According to the control method of the wind generating set, provided by the embodiment of the invention, different active control modes of the wind generating set are adopted according to turbulence values at different wind speeds and different wind speeds by setting the multi-level turbulence set value and the vibration threshold value and monitoring the vibration value of the wind generating set in real time, so that the load of the wind generating set can be reduced, and the safe operation of the wind generating set is ensured.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, "front", "rear", "left", "right", "upper" and "lower" in this document are referred to the placement states shown in the drawings.

Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.