CN114810509A - A method, device and electronic device for monitoring the running state of a wind turbine - Google Patents

Abstract

The present application discloses a method, device and electronic equipment for monitoring the operating state of a wind turbine. The wind turbine includes a flexible tower and power generation equipment arranged on the flexible tower. Multiple vibration sensors are arranged on different levels of the flexible tower. The operation monitoring method and device are specifically collecting the state parameters of the wind turbine, including the vibration parameters of the flexible tower and the operation parameters of the power generation equipment; processing the state parameters to obtain the operation state of the wind turbine. Through this solution, the coupled vibration of the wind turbine can be monitored in real time, so that the operation and maintenance personnel can intervene in real time according to the monitoring results, so as to avoid the impact on the safe operation of the wind turbine due to the coupled vibration.

Description

A method, device and electronic device for monitoring the running state of a wind turbine

technical field

The present application relates to the technical field of wind power, and more particularly, to a method, device and electronic device for monitoring the operating state of a wind turbine.

Background technique

The tower of the wind turbine is the key component of the entire wind turbine, supporting the blades and the nacelle to ensure the normal operation of the equipment and blades in the nacelle. At present, in order to reduce costs, flexible towers are generally used, but compared with rigid towers, flexible towers are more susceptible to resonance, and the natural frequency of the flexible tower itself is low, which is prone to coupled vibration with impellers and blades. The occurrence of coupled vibration will seriously affect the safe operation of the unit, so it is necessary to focus on monitoring the operation status of the wind turbine using the flexible tower.

SUMMARY OF THE INVENTION

In view of this, the present application provides a method, device and electronic equipment for monitoring the operating state of a wind turbine, which are used for real-time monitoring of the operating state of a wind turbine using a flexible tower, so as to avoid coupling vibration and reduce the safety of the wind turbine. operation is affected.

In order to achieve the above purpose, the proposed scheme is as follows:

A method for monitoring the operation state of a wind turbine, which is applied to electronic equipment, the wind turbine comprises a flexible tower and a power generation device arranged on the flexible tower, and two are arranged at the top and the middle of the flexible tower A vibration sensor group, the operation monitoring method includes the steps:

collecting state parameters of the wind turbine, where the state parameters include vibration parameters of the flexible tower and operating parameters of the power generation equipment;

The state parameters are processed to obtain the operating state of the wind turbine.

Optionally, the vibration sensor group includes two vibration sensors arranged on the flexible tower at a vertical angle.

Optionally, the acquiring the state parameters of the wind turbine includes the steps of:

collecting the vibration parameters from the vibration sensor group;

The operating parameters are collected from the main controller of the power plant.

Optionally, the operating parameters include impeller speed and/or pitch angle.

Optionally, the processing of the state parameters to obtain the operating state of the wind turbine includes the steps of:

processing the vibration parameters and the rotational speed of the impeller to obtain the operating state, where the operating state includes the first coupled vibration caused by the rotation of the impeller;

processing the vibration parameter and the pitch angle to obtain the operating state, where the operating state includes the second coupled vibration caused by the pitching action;

The vibration parameters are processed to obtain the operating state, where the operating state includes the first coupled vibration, the second coupled vibration and/or the tower vibration.

An operating state monitoring device for a wind turbine, which is applied to electronic equipment. The wind turbine includes a flexible tower and a power generation device arranged on the flexible tower. The top and the middle of the flexible tower are provided with two A vibration sensor group, the operation monitoring device includes:

a parameter collection module configured to collect state parameters of the wind turbine, the state parameters including vibration parameters of the flexible tower and operating parameters of the power generation equipment;

The data processing module is configured to process the state parameter to obtain the operating state of the wind turbine.

Optionally, the vibration sensor group includes two vibration sensors arranged on the flexible tower at a vertical angle.

Optionally, the parameter collection module includes:

a first collection unit, configured to collect the vibration parameters from the vibration sensor group;

The second acquisition unit is configured to acquire the operating parameters from the main controller of the power generation equipment.

Optionally, the operating parameters include impeller speed and/or pitch angle.

Optionally, the data processing module includes:

a first processing unit, configured to process the vibration parameter and the rotational speed of the impeller to obtain the operating state, where the operating state includes the first coupled vibration caused by the rotation of the impeller;

a second processing unit, configured to process the vibration parameter and the pitch angle to obtain the operating state, where the operating state includes the second coupled vibration caused by the pitching action;

A third processing unit, configured to process the vibration parameters to obtain the operating state, where the operating state includes the first coupled vibration, the second coupled vibration and/or the tower vibration.

An electronic device is applied to a wind turbine. The wind turbine includes a flexible tower and a power generation device arranged on the flexible tower. Two vibration sensor groups are arranged at the top and the middle of the flexible tower. The electronic equipment is respectively connected with the vibration sensor group and the main controller of the power generation equipment, and includes the above-mentioned operating state monitoring device.

An electronic device is applied to a wind turbine. The wind turbine includes a flexible tower and a power generation device arranged on the flexible tower. Two vibration sensor groups are arranged at the top and the middle of the flexible tower. The electronic equipment is respectively connected with the vibration sensor group and the main controller of the power generation equipment, and includes at least one processor and a memory connected with the processor, wherein:

the memory is used to store computer programs or instructions;

The processor is used to execute the computer program or instruction, and the electronic device implements the above-mentioned running state monitoring method during the ceremony.

It can be seen from the above technical solutions that the present application discloses a method, device and electronic equipment for monitoring the operating state of a wind turbine. The wind turbine includes a flexible tower and a power generation device arranged on the flexible tower. A plurality of vibration sensor groups are arranged on different levels. The operation monitoring method and device are specifically to collect the state parameters of the wind turbine. The state parameters include the vibration parameters of the flexible tower and the operation parameters of the power generation equipment; the state parameters are processed to obtain the wind turbine. operating status. Through this solution, the coupled vibration of the wind turbine can be monitored in real time, so that the operation and maintenance personnel can intervene in real time according to the monitoring results, so as to avoid the impact on the safe operation of the wind turbine due to the coupled vibration.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a flowchart of a method for monitoring an operating state of a wind turbine according to an embodiment of the application;

FIG. 2 is a schematic diagram of the height position of the vibration sensor group according to the embodiment of the application;

3 is a schematic diagram of the installation of the vibration sensor according to the embodiment of the application;

Figure 4 shows the vibration form of the flexible tower under different modes;

Fig. 5 is the pitch angle spectrum diagram of the power generation equipment under normal conditions;

Fig. 6 is the spectrogram of the coupling of the pitch angle change and the first-order natural frequency of the flexible tower;

Fig. 7 is the vibration spectrum diagram of the flexible tower under normal conditions;

Fig. 8 is the spectrogram of abnormal vibration in the presence of coupling with the first-order natural frequency of the flexible tower;

Fig. 9 is the vibration spectrum diagram of the flexible tower under normal conditions when the wind turbine is shut down;

Figure 10 is a spectrum diagram of abnormal vibration when there is coupling with the first-order natural frequency of the flexible tower when the wind turbine is shut down;

11 is a block diagram of a device for monitoring an operating state of a wind turbine according to an embodiment of the application;

FIG. 12 is a block diagram of an electronic device according to an embodiment of the application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

The fuselage scheme of the present application is based on the following actual situation, the first-order natural frequency NF1 and the second-order natural frequency NF2 of the flexible tower can be as low as 0.1 Hz to 0.2 Hz. There will be a coupling stage with NF1 when the generator set increases from the impeller speed from the grid-connected speed to the rated speed. The corresponding impeller speed is recorded as RS1. It can be judged whether there is frequency coupling by monitoring the real-time speed of the impeller. When the wind turbine is at full power, when the wind is further strengthened, the turbine will control the speed of the turbine through the pitch action to prevent overspeed. At this time, if the action frequency of the pitch is coupled with NF1 or NF2, it will cause fatigue damage to the tower. Therefore, the parameter of pitch angle can be monitored to determine whether the pitch action frequency is coupled with NF1 or NF2. In some special cases, such as vortex-induced resonance, impeller imbalance, etc., it can be judged whether there is coupling by directly monitoring the frequency characteristics of tower shaking. According to the above characteristics, the present application proposes the following specific embodiments:

Example 1

FIG. 1 is a flowchart of a method for monitoring an operating state of a wind turbine according to an embodiment of the present application.

This embodiment provides a method for monitoring the operating state of a wind turbine. The wind turbine includes a flexible tower 100 and a power generation device 200 arranged on the flexible tower. As shown in FIG. 2 , in order to implement the technical solution of the present application, in The top 101 and the middle 102 of the flexible tower of the present application are provided with corresponding vibration sensor groups, and each sensor group includes two vibration sensors x and y based on the acceleration principle on the same plane and perpendicular to each other, as shown in FIG. 3 . . The power generating equipment has a main controller for performing running control operations on the power generating equipment, and also for detecting the rotational speed of the impeller and the pitch angle of the power generating equipment.

The reason why a set of vibration sensor groups are installed on the top and middle of the flexible tower is determined by the first-order and second-order vibration forms of the flexible tower. The vibration form is shown in Figure 4. When the tower is at the selected position, the The vibration amplitude of the cylinder is the largest, which can monitor the frequency characteristics of the two-order mode shape most effectively.

As shown in FIG. 1 , the operating state monitoring method provided in this embodiment is applied to an electronic device provided on the wind turbine. The electronic device can be understood as a computer device or a controller with data calculation and information processing capabilities. The monitoring method includes the following steps:

S1. Collect state parameters of the wind turbine.

The state parameters in this embodiment include the vibration parameters detected by the above-mentioned vibration sensor group and the operation parameters of the wind turbine. The operation parameters include the impeller speed and the pitch angle of the power generating equipment. When collecting, the vibration parameters detected by the vibration sensor group are collected, and in addition, the operating parameters are collected from the main controller of the power generation equipment.

S2. Obtain the operating state of the wind turbine according to the state parameters of the wind turbine.

That is, on the basis of obtaining the above state parameters, the vibration parameters themselves or the vibration parameters and other operating parameters are used for calculation processing to obtain the operating state of the wind turbine. Human intervention can prevent the wind turbine from being damaged by coupled vibration.

The present application adopts the following specific methods, and the obtained operating state includes the first coupled vibration, the second coupled vibration and the tower vibration, and the specific scheme is as follows:

1. Through the processing of the impeller speed and vibration parameters, the corresponding operating state, that is, the first coupled vibration, is obtained. According to NF1, the dangerous range of impeller speed is set as [RS1-RS1*10%, RS1+RS1*10%], denoted as [RS1-, RS1+], and its monitoring logic is:

Real-time monitoring of the impeller speed is realized according to the obtained operating parameters. When the speed enters the [RS1-, RS1+] interval, the timing is started, and the real-time speed RSi is recorded. With 60s as the time limit, the average speed within 60s RSm is calculated,

in,

i - the i-th speed recorded;

n—The number of rotational speeds recorded within 60s is equal to time*sampling frequency.

Further, when the timing starts, when RSi<RS1-RS1*15% or RSi>RS1+RS1*15% occurs, the timing will be cancelled until the next time when RSi falls into the [RS1-, RS1+] interval , and then repeat the above process.

For the obtained RSm, if it is in the [RS1-, RS1+] interval, a warning will be sent to the main control and remote monitoring center of the unit, and there is a risk of resonance between the impeller rotational frequency and NF1, so that the unit can take protective measures. If RSm is outside the range of [RS1-, RS1+], there is no need to send a warning, and the unit continues to operate normally.

2. By processing the pitch angle and vibration parameters, the corresponding operating state, that is, the second coupled vibration, is obtained. Specifically, monitoring the frequency coupling caused by the pitch action.

Fourier transform is performed on the pitch angle collected within every 60s;

As shown in Figure 5, the figure is the frequency spectrum of the pitch angle under normal conditions, and Figure 6 is the case where the change of the pitch angle is coupled with the first-order natural frequency NF1 of the flexible tower. Judging the results of the Fourier transform, the frequency focus range is [NF1-NF1*10%, NF1+NF1*10%], denoted as [NF1-, NF1+], as shown in the frequency range between the two dotted lines in Figure 6.

We do not pay attention to the frequency range corresponding to NF2 here, because the change rhythm of the pitch angle is not so fast, so there is no need to consider it.

Determine the maximum amplitude value in [NF1-, NF1+], denoted as PNF1, and at the same time, according to the operating data of the unit, determine the limit value of the amplitude value, Falarm;

It is judged whether there is a second coupling vibration. A value of PNF1 can be obtained every 60s, and it is compared with the value of Falarm. If PNF1>Falarm, count it once, otherwise, it will not be recorded. A counting period of 10 minutes is taken as a counting period. If the count exceeds 7 in this counting period, it is considered that there is a frequency coupling situation, and a warning is issued to the main control and remote monitoring center. measure.

3. Only by processing the vibration parameters, the first coupled vibration, the second coupled vibration or the tower vibration can be obtained. In this embodiment, the monitoring of NF1 relies on the vibration sensor set installed on the top of the flexible tower, and the monitoring of NF2 uses the vibration sensor installed in the middle of the flexible tower. Taking the monitoring of NF1 as an example, compared with the rigid tower, the flexible tower is more likely to cause resonance coupling in the shutdown state.

When the wind turbine is running:

1) Record the vibration data in real time, and perform Fourier transform on the collected vibration parameters every 60s;

2) As shown in Figure 7, it is a vibration spectrum diagram under normal conditions, and Figure 8 is a situation where there is abnormal vibration coupled with the first-order natural frequency NF1 of the tower. Judging the results of the Fourier transform, the frequency focus range is [NF1-NF1*10%, NF1+NF1*10%], denoted as [NF1-, NF1+], as shown in the frequency range between the two dotted lines in Figure 8.

3) Determine the maximum amplitude value in [NF1-, NF1+], denoted as Ftv1, and at the same time, according to the data during normal operation of the unit, determine the limit value of the NF1 amplitude value Ft-alarm;

4) Judge whether there is frequency coupling. A value of Ftv1 can be obtained every 60s, and it is compared with Ft-alarm. If Ftv1>Ft-alarm, count it once, otherwise, it will not be recorded. A counting cycle of 10 minutes is used. If the count exceeds 7 in this cycle, it is considered that there is a frequency coupling situation, and a warning is issued to the main control and remote monitoring center. The unit has the risk of tower resonance, and the unit is asked to take protective measures.

When the wind turbine stops:

1) Record the vibration data in real time, and perform Fourier transform on the collected vibration data every 60s;

2) As shown in Figure 9, it is a vibration spectrum diagram under normal conditions, and Figure 10 is a situation where there is abnormal vibration coupled with the first-order natural frequency NF1 of the tower. Judging the results of the Fourier transform, the frequency focus range is [NF1-NF1*10%, NF1+NF1*10%], denoted as [NF1-, NF1+], as shown in the frequency range between the two dotted lines in Figure 10.

3) Determine the maximum amplitude value in [NF1-, NF1+], denoted as Ftv1-s, and at the same time, determine the limit value of NF1 amplitude value Ft-alarm-s according to the data during normal operation of the unit;

4) A value of Ftv1-s can be obtained every 60s, and it is compared with Ft-alarm-s. If Ftv1-s>Ft-alarm-s, count it once, otherwise, it will not be recorded. Taking 30 minutes as a counting period, if the count exceeds 25 in this period, it is considered that there is a frequency coupling situation, and a warning is issued to the main control and remote monitoring center that the unit has the risk of tower resonance. , the sound alarm device starts to work, reminding people working in or near the tower to stay away from the unit.

It can be seen from the above technical solutions that this embodiment provides a method for monitoring the operating state of a wind turbine. The method is applied to electronic equipment. The wind turbine includes a flexible tower and a power generation device arranged on the flexible tower. There are multiple vibration sensor groups on different levels of the drum. The operation monitoring method is to collect the state parameters of the wind turbine. The state parameters include the vibration parameters of the flexible tower and the operation parameters of the power generation equipment. The state parameters are processed to obtain the wind turbine. operating status. Through this solution, the coupled vibration of the wind turbine can be monitored in real time, so that the operation and maintenance personnel can intervene in real time according to the monitoring results, so as to avoid the impact on the safe operation of the wind turbine due to the coupled vibration.

Embodiment 2

FIG. 11 is a block diagram of a device for monitoring an operating state of a wind turbine according to an embodiment of the present application.

As shown in FIG. 11 , the operating state monitoring device provided in this embodiment is applied to an electronic device provided on the wind turbine. The electronic device can be understood as a computer device or a controller with data calculation and information processing capabilities. The monitoring device includes a parameter acquisition module 10 and a data processing module 20 .

The parameter collection module is used to collect the state parameters of the wind turbine.

The state parameters in this embodiment include the vibration parameters detected by the above-mentioned vibration sensor group and the operation parameters of the wind turbine, and the operation parameters include the impeller speed and the pitch angle of the power generating equipment. The module includes a first collection unit and a second collection unit, the first collection unit is used for collecting the vibration parameters detected by the vibration sensor group, and the second collection unit is used for collecting the operating parameters from the main controller of the power generation equipment.

The data processing module is used to obtain the running state of the wind turbine according to the state parameters of the wind turbine.

That is, on the basis of obtaining the above state parameters, the vibration parameters themselves or the vibration parameters and other operating parameters are used for calculation processing to obtain the operating state of the wind turbine. Human intervention can prevent the wind turbine from being damaged by coupled vibration.

The present application adopts the following specific method, the obtained operating state includes the first coupled vibration, the second coupled vibration and the tower vibration, specifically, the data processing module includes a first processing unit, a second processing unit and a third processing unit .

The first processing unit is used to obtain a corresponding operating state, that is, the first coupled vibration, by processing the rotational speed of the impeller and the vibration parameters. According to NF1, the dangerous range of impeller speed is set as [RS1-RS1*10%, RS1+RS1*10%], denoted as [RS1-, RS1+], and its monitoring logic is:

Real-time monitoring of the impeller speed is realized according to the obtained operating parameters. When the speed enters the [RS1-, RS1+] interval, the timing is started, and the real-time speed RSi is recorded. With 60s as the time limit, the average speed within 60s RSm is calculated,

in,

i - the i-th speed recorded;

n—The number of rotational speeds recorded within 60s is equal to time*sampling frequency.

Further, when the timing starts, when RSi<RS1-RS1*15% or RSi>RS1+RS1*15% occurs, the timing will be cancelled until the next time when RSi falls into the [RS1-, RS1+] interval , and then repeat the above process.

For the obtained RSm, if it is in the [RS1-, RS1+] interval, a warning will be sent to the main control and remote monitoring center of the unit, and there is a risk of resonance between the impeller rotational frequency and NF1, so that the unit can take protective measures. If RSm is outside the range of [RS1-, RS1+], there is no need to send a warning, and the unit continues to operate normally.

The second processing unit is used to obtain the corresponding operating state, that is, the second coupled vibration, by processing the pitch angle and the vibration parameters. Specifically, monitoring the frequency coupling caused by the pitch action.

Fourier transform is performed on the pitch angle collected within every 60s;

As shown in Figure 5, the figure is the frequency spectrum of the pitch angle under normal conditions, and Figure 6 is the case where the change of the pitch angle is coupled with the first-order natural frequency NF1 of the flexible tower. Judging the results of the Fourier transform, the frequency focus range is [NF1-NF1*10%, NF1+NF1*10%], denoted as [NF1-, NF1+], as shown in the frequency range between the two dotted lines in Figure 6.

We do not pay attention to the frequency range corresponding to NF2 here, because the change rhythm of the pitch angle is not so fast, so there is no need to consider it.

Determine the maximum amplitude value in [NF1-, NF1+], denoted as PNF1, and at the same time, according to the operating data of the unit, determine the limit value of the amplitude value, Falarm;

It is judged whether there is a second coupling vibration. A value of PNF1 can be obtained every 60s, and it is compared with the value of Falarm. If PNF1>Falarm, count it once, otherwise, it will not be recorded. A counting period of 10 minutes is taken as a counting period. If the count exceeds 7 in this counting period, it is considered that there is a frequency coupling situation, and a warning is issued to the main control and remote monitoring center. measure.

The third processing unit obtains the first coupled vibration, the second coupled vibration or the tower vibration only by processing the vibration parameters. In this embodiment, the monitoring of NF1 relies on the vibration sensor group installed on the top of the flexible tower, and the monitoring of NF2 uses the vibration sensor installed in the middle of the flexible tower. Taking the monitoring of NF1 as an example, compared with the rigid tower, the flexible tower is more likely to cause resonance coupling in the shutdown state.

When the wind turbine is running:

1) Record the vibration data in real time, and perform Fourier transform on the collected vibration parameters every 60s;

2) As shown in Figure 7, it is a vibration spectrum diagram under normal conditions, and Figure 8 is a situation where there is abnormal vibration coupled with the first-order natural frequency NF1 of the tower. Judging the results of the Fourier transform, the frequency focus range is [NF1-NF1*10%, NF1+NF1*10%], denoted as [NF1-, NF1+], as shown in the frequency range between the two dotted lines in Figure 8.

3) Determine the maximum amplitude value in [NF1-, NF1+], denoted as Ftv1, and at the same time, according to the data during normal operation of the unit, determine the limit value of the NF1 amplitude value Ft-alarm;

4) Judge whether there is frequency coupling. A value of Ftv1 can be obtained every 60s, and it is compared with Ft-alarm. If Ftv1>Ft-alarm, count it once, otherwise, it will not be recorded. A counting cycle of 10 minutes is used. If the count exceeds 7 in this cycle, it is considered that there is a frequency coupling situation, and a warning is issued to the main control and remote monitoring center. The unit has the risk of tower resonance, and the unit is asked to take protective measures.

When the wind turbine stops:

1) Record the vibration data in real time, and perform Fourier transform on the collected vibration data every 60s;

2) As shown in Figure 9, it is a vibration spectrum diagram under normal conditions, and Figure 10 is a situation where there is abnormal vibration coupled with the first-order natural frequency NF1 of the tower. Judging the results of the Fourier transform, the frequency focus range is [NF1-NF1*10%, NF1+NF1*10%], denoted as [NF1-, NF1+], as shown in the frequency range between the two dotted lines in Figure 10.

3) Determine the maximum amplitude value in [NF1-, NF1+], denoted as Ftv1-s, and at the same time, determine the limit value of NF1 amplitude value Ft-alarm-s according to the data during normal operation of the unit;

4) A value of Ftv1-s can be obtained every 60s, and it is compared with Ft-alarm-s. If Ftv1-s>Ft-alarm-s, count it once, otherwise, it will not be recorded. Taking 30 minutes as a counting period, if the count exceeds 25 in this period, it is considered that there is a frequency coupling situation, and a warning is issued to the main control and remote monitoring center that the unit has the risk of tower resonance, and the unit is remotely asked to take protective measures. , the sound alarm device starts to work, reminding people working in or near the tower to stay away from the unit.

It can be seen from the above technical solutions that this embodiment provides a device for monitoring the operating state of a wind turbine. The device is applied to electronic equipment. The wind turbine includes a flexible tower and a power generation device arranged on the flexible tower. There are multiple vibration sensor groups on different levels of the drum. The operation monitoring device is specifically used to collect the state parameters of the wind turbine. The state parameters include the vibration parameters of the flexible tower and the operation parameters of the power generation equipment; The operating status of the unit. Through this solution, the coupled vibration of the wind turbine can be monitored in real time, so that the operation and maintenance personnel can intervene in real time according to the monitoring results, so as to avoid the impact on the safe operation of the wind turbine due to the coupled vibration.

Embodiment 3

This embodiment provides an electronic device, which can be understood as a computer device or a controller with data computing and information processing capabilities. The electronic equipment is respectively connected with the vibration sensor group and the main controller of the power generation equipment, and is provided with the operation state monitoring device of the previous embodiment. The electronic device is specifically used to collect the state parameters of the wind turbine, the state parameters include the vibration parameters of the flexible tower and the operation parameters of the power generation equipment; the state parameters are processed to obtain the operation state of the wind turbine. Through this solution, the coupled vibration of the wind turbine can be monitored in real time, so that the operation and maintenance personnel can intervene in real time according to the monitoring results, so as to avoid the impact on the safe operation of the wind turbine due to the coupled vibration.

Embodiment 4

FIG. 12 is a block diagram of an electronic device according to an embodiment of the application.

As shown in FIG. 12 , the electronic device provided in this embodiment can be understood as a computer device or a controller with data computing and information processing capabilities. The electronic equipment is respectively connected with the vibration sensor group and the main controller of the power generation equipment, and is provided with the operation state monitoring device of the previous embodiment. The electronic device includes at least one processor 301 and a memory 302 , which are connected through a data bus 303 . The memory is used for storing computer programs or instructions, and the processor is used for executing corresponding computer programs or instructions, so that the electronic device implements the state monitoring method for the wind turbine provided in the first embodiment.

The state monitoring method specifically includes collecting the state parameters of the wind turbine, including the vibration parameters of the flexible tower and the operation parameters of the power generation equipment; processing the state parameters to obtain the operation state of the wind turbine. Through this solution, the coupled vibration of the wind turbine can be monitored in real time, so that the operation and maintenance personnel can intervene in real time according to the monitoring results, so as to avoid the impact on the safe operation of the wind turbine due to the coupled vibration.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments may be referred to each other.

It should be understood by those skilled in the art that the embodiments of the embodiments of the present invention may be provided as a method, an apparatus, or a computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, CD-ROM, optical storage, and the like.

Embodiments of the present invention are described with reference to flowcharts and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the present invention. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing terminal equipment to produce a machine that causes the instructions to be executed by the processor of the computer or other programmable data processing terminal equipment Means are created for implementing the functions specified in the flow or flows of the flowcharts and/or the blocks or blocks of the block diagrams.

These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing terminal equipment to operate in a particular manner, such that the instructions stored in the computer readable memory result in an article of manufacture comprising instruction means, the The instruction means implement the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing terminal equipment, so that a series of operational steps are performed on the computer or other programmable terminal equipment to produce a computer-implemented process, thereby executing on the computer or other programmable terminal equipment The instructions executed on the above provide steps for implementing the functions specified in the flowchart or blocks and/or the block or blocks of the block diagrams.

Although preferred embodiments of the embodiments of the present invention have been described, additional changes and modifications to these embodiments may be made by those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications that fall within the scope of the embodiments of the present invention.

Finally, it should also be noted that in this document, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply these entities or that there is any such actual relationship or sequence between operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or terminal device comprising a list of elements includes not only those elements, but also a non-exclusive list of elements. other elements, or also include elements inherent to such a process, method, article or terminal equipment. Without further limitation, an element defined by the phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, article or terminal device comprising said element.

The technical solutions provided by the present invention are described in detail above, and specific examples are used in this paper to illustrate the principles and implementations of the present invention. The descriptions of the above embodiments are only used to help understand the method of the present invention and its core idea; Meanwhile, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific embodiments and application scope. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (12)

1. A method for monitoring the operating state of a wind turbine, applied to electronic equipment, the wind turbine comprises a flexible tower and a power generation device arranged on the flexible tower, and a top and middle of the flexible tower are provided with Two vibration sensor groups, characterized in that the operation monitoring method comprises the steps of: collecting state parameters of the wind turbine, where the state parameters include vibration parameters of the flexible tower and operating parameters of the power generation equipment; The state parameters are processed to obtain the operating state of the wind turbine. 2 . The operating state monitoring method according to claim 1 , wherein the vibration sensor group comprises two vibration sensors arranged on the flexible tower at a vertical angle. 3 . 3. The operating state monitoring method according to claim 1, wherein the acquiring the state parameters of the wind turbine comprises the steps of: collecting the vibration parameters from the vibration sensor group; The operating parameters are collected from the main controller of the power plant. 4. The operating state monitoring method according to claim 1, wherein the operating parameters include impeller rotational speed and/or pitch angle. 5. The operating state monitoring method according to claim 4, wherein the processing of the state parameters to obtain the operating state of the wind turbine comprises the steps of: processing the vibration parameters and the rotational speed of the impeller to obtain the operating state, where the operating state includes the first coupled vibration caused by the rotation of the impeller; processing the vibration parameter and the pitch angle to obtain the operating state, where the operating state includes the second coupled vibration caused by the pitching action; The vibration parameters are processed to obtain the operating state, where the operating state includes the first coupled vibration, the second coupled vibration and/or the tower vibration. 6. An operating state monitoring device for a wind turbine, applied to electronic equipment, the wind turbine comprises a flexible tower and a power generation device arranged on the flexible tower, and a top and middle of the flexible tower are provided with Two vibration sensor groups, characterized in that the operation monitoring device includes: a parameter collection module configured to collect state parameters of the wind turbine, the state parameters including vibration parameters of the flexible tower and operating parameters of the power generation equipment; The data processing module is configured to process the state parameter to obtain the operating state of the wind turbine. 7 . The operating state monitoring device according to claim 6 , wherein the vibration sensor group comprises two vibration sensors arranged on the flexible tower at a vertical angle. 8 . 8. The operating state monitoring device according to claim 6, wherein the parameter acquisition module comprises: a first collection unit, configured to collect the vibration parameters from the vibration sensor group; The second acquisition unit is configured to acquire the operating parameters from the main controller of the power generation equipment. 9 . The operating state monitoring device according to claim 6 , wherein the operating parameters include the rotational speed of the impeller and/or the pitch angle. 10 . 10. The operating state monitoring device according to claim 9, wherein the data processing module comprises: a first processing unit, configured to process the vibration parameter and the rotational speed of the impeller to obtain the operating state, where the operating state includes the first coupled vibration caused by the rotation of the impeller; a second processing unit, configured to process the vibration parameter and the pitch angle to obtain the operating state, where the operating state includes the second coupled vibration caused by the pitching action; A third processing unit, configured to process the vibration parameters to obtain the operating state, where the operating state includes the first coupled vibration, the second coupled vibration and/or the tower vibration. 11. An electronic device, applied to a wind turbine, the wind turbine comprising a flexible tower and a power generating device arranged on the flexible tower, two vibration sensor groups are arranged at the top and the middle of the flexible tower , characterized in that the electronic equipment is respectively connected with the vibration sensor group and the main controller of the power generation equipment, and includes the operation state monitoring device according to any one of claims 6-10. 12. An electronic device, applied to a wind turbine, the wind turbine comprising a flexible tower and a power generation device arranged on the flexible tower, two vibration sensor groups are arranged at the top and the middle of the flexible tower , characterized in that the electronic equipment is respectively connected to the vibration sensor group and the main controller of the power generation equipment, and includes at least one processor and a memory connected to the processor, wherein: the memory is used to store computer programs or instructions; The processor is configured to execute the computer program or instruction, and the electronic device implements the operation state monitoring method according to any one of claims 1 to 5 during the ceremony.

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