A method, device and electronic equipment for monitoring the operation status of a wind turbine generator set

Abstract

The present application discloses a method, device and electronic equipment for monitoring the operation status 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 layers of the flexible tower. The operation monitoring method and device specifically collect the state parameters of the wind turbine, which include the vibration parameters of the flexible tower and the operation parameters of the power generation device; the state parameters are processed to obtain the operation status 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, thereby avoiding the impact on the safe operation of the wind turbine due to the coupled vibration.

Description

Technical Field

[0001] The present application relates to the field of wind power technology, and more specifically, to a method, device and electronic equipment for monitoring the operating status of a wind turbine generator set. Background Art

[0002] The tower of a wind turbine is a 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 flexible tower itself has a lower natural frequency, which is easy to couple vibration with the impeller and blades. Once coupled vibration occurs, it will seriously affect the safe operation of the unit. Therefore, it is necessary to focus on monitoring the operating status of wind turbines using flexible towers. Summary of the invention

[0003] In view of this, the present application provides a method, device and electronic equipment for monitoring the operating status of a wind turbine set using a flexible tower in real time to avoid coupling vibration that may affect the safe operation of the wind turbine set.

[0004] In order to achieve the above objectives, the proposed solution is as follows:

[0005] A method for monitoring the operating status of a wind turbine generator set is applied to electronic equipment. The wind turbine generator set 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 operating monitoring method includes the following steps:

[0006] Collecting state parameters of the wind turbine generator set, wherein the state parameters include vibration parameters of the flexible tower and operating parameters of the power generation equipment;

[0007] The state parameters are processed to obtain the operating state of the wind turbine generator set.

[0008] Optionally, the vibration sensor group includes two vibration sensors arranged on the flexible tower at a vertical angle.

[0009] Optionally, the step of obtaining the state parameters of the wind turbine generator system comprises the following steps:

[0010] collecting the vibration parameters from the vibration sensor group;

[0011] The operating parameters are collected from a main controller of the power generation equipment.

[0012] Optionally, the operating parameters include impeller speed and / or pitch angle.

[0013] Optionally, the processing of the state parameter to obtain the operating state of the wind turbine generator set comprises the following steps:

[0014] Processing the vibration parameter and the impeller speed to obtain the operating state, wherein the operating state includes a first coupled vibration caused by the impeller rotation;

[0015] Processing the vibration parameter and the pitch angle to obtain the operating state, wherein the operating state includes a second coupled vibration caused by a pitch changing action;

[0016] 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 tower vibration.

[0017] A wind turbine operating status monitoring device is applied to electronic equipment. The wind turbine comprises 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 operating monitoring device comprises:

[0018] A parameter collection module is configured to collect state parameters of the wind turbine generator set, wherein the state parameters include vibration parameters of the flexible tower and operating parameters of the power generation equipment;

[0019] The data processing module is configured to process the state parameters to obtain the operating state of the wind turbine generator set.

[0020] Optionally, the vibration sensor group includes two vibration sensors arranged on the flexible tower at a vertical angle.

[0021] Optionally, the parameter acquisition module includes:

[0022] A first collecting unit, used for collecting the vibration parameters from the vibration sensor group;

[0023] The second acquisition unit is used to acquire the operating parameters from the main controller of the power generation equipment.

[0024] Optionally, the operating parameters include impeller speed and / or pitch angle.

[0025] Optionally, the data processing module includes:

[0026] A first processing unit, configured to process the vibration parameter and the impeller rotation speed to obtain the operating state, wherein the operating state includes a first coupled vibration caused by the impeller rotation;

[0027] A second processing unit is used to process the vibration parameter and the pitch angle to obtain the operating state, wherein the operating state includes a second coupled vibration caused by a pitch changing action;

[0028] The third processing unit is used 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 tower vibration.

[0029] An electronic device is applied to a wind turbine group, wherein the wind turbine group comprises 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, and the electronic device is respectively connected to the vibration sensor groups and the main controller of the power generation device, and comprises the operation status monitoring device as described above.

[0030] An electronic device is applied to a wind turbine generator set, the wind turbine generator set comprises 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 device is respectively connected to the vibration sensor group and the main controller of the power generation device, and comprises at least one processor and a memory connected to the processor, wherein:

[0031] The memory is used to store computer programs or instructions;

[0032] The processor is used to execute the computer program or instructions, and the electronic device implements the operation status monitoring method as described above.

[0033] It can be seen from the above technical scheme that the present application discloses a method, device and electronic equipment for monitoring the operating status 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 of the flexible tower. The operating monitoring method and device specifically collect the state parameters of the wind turbine, and the state parameters include the vibration parameters of the flexible tower and the operating parameters of the power generation device; the state parameters are processed to obtain the operating status of the wind turbine. Through this scheme, 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, thereby avoiding the impact on the safe operation of the wind turbine due to the coupled vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A flow chart of a method for monitoring the operating status of a wind turbine generator system according to an embodiment of the present application;

[0036] Figure 2 A schematic diagram of the height position of a vibration sensor group according to an embodiment of the present application;

[0037] Figure 3 This is a schematic diagram of the installation of a vibration sensor according to an embodiment of the present application;

[0038] Figure 4 It is the vibration form of the flexible tower under different modes;

[0039] Figure 5 It is the pitch angle spectrum diagram of the power generation equipment under normal conditions;

[0040] Figure 6 This is the frequency spectrum diagram of the coupling between the pitch angle change and the first-order natural frequency of the flexible tower;

[0041] Figure 7 This is the vibration spectrum of the flexible tower under normal conditions;

[0042] Figure 8 This is the spectrum diagram of abnormal vibration when there is coupling with the first-order natural frequency of the flexible tower;

[0043] Fig. 9 This is the vibration spectrum diagram of the flexible tower under normal conditions when the wind turbine is shut down;

[0044] Fig.10 This is the frequency spectrum of abnormal vibration when the wind turbine is shut down and coupled with the first-order natural frequency of the flexible tower;

[0045] Fig.11 A block diagram of a wind turbine operating status monitoring device according to an embodiment of the present application;

[0046] Fig.12 A block diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] The fuselage scheme of the present application is based on the following actual conditions. The first-order natural frequency NF1 and the second-order natural frequency NF2 of the flexible tower can be as low as 0.1Hz to 0.2Hz. In the process of the impeller speed of the generator set increasing from the grid-connected speed to the rated speed, there will be a stage where it is coupled with NF1. The corresponding impeller speed is recorded as RS1. The real-time speed of the impeller can be monitored to determine whether there is frequency coupling. During the full-power period of the wind turbine, when the wind force is further enhanced, the unit will control the speed of the unit through the pitch action to prevent overspeed. At this time, if the pitch action frequency is coupled with NF1 or NF2, fatigue damage to the tower will be caused. Therefore, the pitch angle parameter 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 determined whether there is coupling by directly monitoring the frequency characteristics of the tower shaking. Based on the above characteristics, the present application specifically proposes the following specific embodiments:

[0049] Embodiment 1

[0050] Figure 1 This is a flow chart of a method for monitoring the operating status of a wind turbine generator system according to an embodiment of the present application.

[0051] This embodiment provides a method for monitoring the operating status of a wind turbine generator set. The wind turbine generator set includes a flexible tower 100 and a power generation device 200 disposed on the flexible tower. Figure 2 As shown, in order to implement the technical solution of the present application, corresponding vibration sensor groups are arranged on the top 101 and the middle 102 of the flexible tower of the present application, and each sensor group includes two vibration sensors x and y based on the acceleration principle that are in the same plane and perpendicular to each other, as shown in FIG. Figure 3 The power generation equipment has a main controller for executing operation control operations on the power generation equipment and for detecting the impeller speed and pitch angle of the power generation equipment.

[0052] The reason why a group of vibration sensors are installed at 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 forms are as follows: Figure 4 As shown in the figure, when the tower is at the selected position, the tower sway amplitude is the largest, and the frequency characteristics of the two-order vibration modes can be monitored most effectively.

[0053] like Figure 1 As shown, the operation status monitoring method provided in this embodiment is applied to an electronic device arranged on the wind turbine generator set. The electronic device can be understood as a computer device or controller with data calculation and information processing capabilities. The operation status monitoring method includes the following steps:

[0054] S1. Collect status parameters of wind turbines.

[0055] The state parameters of this embodiment include the vibration parameters detected by the above vibration sensor group and the operating parameters of the wind turbine. The operating parameters include the impeller speed and pitch angle of the power generation equipment. During acquisition, the vibration parameters detected by the vibration sensor group are collected from it. Additionally, the operating parameters are collected from the main controller of the power generation equipment.

[0056] S2. Obtain the operating state of the wind turbine according to its state parameters.

[0057] That is, on the basis of obtaining the above state parameters, the operating state of the wind turbine is obtained by performing arithmetic processing on the vibration parameters themselves or the vibration parameters and other operating parameters. Once coupled vibration occurs, a prompt message is sent to the operation and maintenance personnel in a timely manner, and the destruction of the wind turbine caused by coupled vibration can be avoided through the intervention of the operation and maintenance personnel.

[0058] Through the following specific method of this application, the obtained operating states include the first coupled vibration, the second coupled vibration, and the tower vibration. The specific solutions are as follows:

[0059] 1. By processing 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 the impeller speed is set as [RS1 - RS1 * 10%, RS1 + RS1 * 10%], denoted as [RS1-, RS1+]. Its monitoring logic is as follows:

[0060] The real-time monitoring of the impeller speed is realized according to the obtained operating parameters. When the speed enters the interval [RS1-, RS1+], timing starts, and the real-time speed RSi is recorded. Taking 60s as the time limit, the average speed RSm within 60s is calculated.

[0061]

[0062] Among them,

[0063] i—the i-th recorded speed;

[0064] n—the number of recorded speeds within 60s, equal to time * sampling frequency.

[0065] Furthermore, when timing starts, if the situation of RSi < RS1 - RS1 * 15% or RSi > RS1 + RS1 * 15% occurs, this timing is cancelled, and the above process is repeated when the next RSi falls into the interval [RS1-, RS1+].

[0066] For the obtained RSm, if it is within the range of [RS1-, RS1+], an alarm is sent to the unit master control and remote monitoring center, indicating that there is a risk of resonance between the impeller frequency and NF1, so that the unit can take protective measures. If RSm is outside the range of [RS1-, RS1+], no alarm is required and the unit continues to operate normally.

[0067] 2. By processing the pitch angle and vibration parameters, the corresponding operating state, i.e., the second coupled vibration, is obtained. Specifically, the frequency coupling caused by the pitch change action is monitored.

[0068] Perform Fourier transform on the pitch angle collected every 60 seconds;

[0069] like Figure 5 As shown, this figure is the pitch angle spectrum diagram under normal conditions. Figure 6 This is the case where the pitch angle change is coupled with the first-order natural frequency NF1 of the flexible tower. Judging from the results of Fourier transform, the frequency focus range is [NF1-NF1*10%, NF1+NF1*10%], recorded as [NF1-, NF1+], such as Figure 6 The frequency range between the two dashed lines.

[0070] The frequency range corresponding to NF2 is not considered here because the pitch angle does not change that fast, so it does not need to be considered.

[0071] Determine the maximum amplitude value in [NF1-, NF1+], recorded as PNF1, and at the same time, determine the amplitude limit Falarm based on the unit's operating data;

[0072] Determine whether there is a second coupled vibration. A PNF1 value can be obtained every 60 seconds and compared with Falarm. If PNF1>Falarm, it is counted once, otherwise, it is not recorded. A counting cycle of 10 minutes is considered a frequency coupling situation. If the count exceeds 7 within the counting cycle, it is considered that there is a frequency coupling situation, and an alarm is issued to the main control and remote monitoring center. There is a coupling risk between the pitch action frequency and NF1, so that the unit can take protective measures.

[0073] 3. Only by processing the vibration parameters, the first coupled vibration, the second coupled vibration or the tower vibration is obtained. In this embodiment, NF1 is monitored by means of a vibration sensor group installed on the top of the flexible tower, and NF2 is monitored by means of a 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.

[0074] When the wind turbine is running:

[0075] 1) Record vibration data in real time and perform Fourier transform on the collected vibration parameters every 60 seconds;

[0076] 2) If Figure 7 As shown, this is the vibration spectrum under normal conditions. Figure 8 This is a situation where there is abnormal vibration coupled with the first-order natural frequency NF1 of the tower. The Fourier transform results are judged, and the frequency focus range is [NF1-NF1*10%, NF1+NF1*10%], recorded as [NF1-, NF1+], such as Figure 8 The frequency range between the two dashed lines.

[0077] 3) Determine the maximum amplitude value in [NF1-, NF1+], recorded as Ftv1, and at the same time, determine the limit value Ft-alarm of the NF1 amplitude based on the data during normal operation of the unit;

[0078] 4) Determine whether there is frequency coupling. A Ftv1 value can be obtained every 60 seconds and compared with Ft-alarm. If Ftv1>Ft-alarm, it is counted once, otherwise, it is not recorded. A counting cycle of 10 minutes is considered a frequency coupling situation. If the count exceeds 7 within the cycle, it is considered that there is a frequency coupling situation, and an alarm is issued to the main control and remote monitoring center, indicating that the unit is at risk of tower resonance, so that the unit can take protective measures.

[0079] When the wind turbine stops:

[0080] 1) Record vibration data in real time and perform Fourier transform on the collected vibration data every 60 seconds;

[0081] 2) If Fig. 9 As shown, this is the vibration spectrum under normal conditions. Fig.10 This is a situation where there is abnormal vibration coupled with the first-order natural frequency NF1 of the tower. The Fourier transform results are judged, and the frequency focus range is [NF1-NF1*10%, NF1+NF1*10%], recorded as [NF1-, NF1+], such as Fig.10 The frequency range between the two dashed lines.

[0082] 3) Determine the maximum amplitude value in [NF1-, NF1+], recorded as Ftv1-s. At the same time, determine the limit value of NF1 amplitude Ft-alarm-s based on the data during normal operation of the unit;

[0083] 4) Every 60 seconds, a value of Ftv1-s is obtained and compared with Ft-alarm-s. If Ftv1-s>Ft-alarm-s, it is counted once, otherwise, it is not recorded. A counting cycle of 30 minutes is considered. If the count exceeds 25 within the cycle, it is considered that there is frequency coupling, and an alarm is issued to the main control and remote monitoring center, indicating that the unit is at risk of tower resonance. The unit is asked to take protective measures remotely, and at the same time, the sound alarm device starts to work, reminding people working in or near the tower to stay away from the unit.

[0084] It can be seen from the above technical scheme that this embodiment provides a method for monitoring the operating status of 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. Multiple vibration sensor groups are arranged on different levels of the flexible tower. The operating monitoring method specifically collects the state parameters of the wind turbine, and the state parameters include the vibration parameters of the flexible tower and the operating parameters of the power generation device; the state parameters are processed to obtain the operating status of the wind turbine. Through this scheme, 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, thereby avoiding the impact on the safe operation of the wind turbine due to coupled vibration.

[0085] Embodiment 2

[0086] Fig.11 This is a block diagram of a wind turbine operating status monitoring device according to an embodiment of the present application.

[0087] like Fig.11 As shown, the operation status monitoring device provided in this embodiment is applied to an electronic device arranged on the wind turbine set. The electronic device can be understood as a computer device or controller with data calculation and information processing capabilities. The operation status monitoring device includes a parameter acquisition module 10 and a data processing module 20.

[0088] The parameter acquisition module is used to collect the status parameters of the wind turbine.

[0089] The state parameters of this embodiment include the vibration parameters detected by the vibration sensor group and the operating parameters of the wind turbine group, and the operating parameters include the impeller speed and pitch angle of the power generation equipment. The module includes a first acquisition unit and a second acquisition unit, the first acquisition unit is used to acquire the vibration parameters detected by the vibration sensor group, and the second acquisition unit is used to acquire the operating parameters from the main controller of the power generation equipment.

[0090] The data processing module is used to obtain the operating status of the wind turbine according to its status parameters.

[0091] 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 arithmetic processing to obtain the operating state of the wind turbine. Once coupled vibration occurs, a prompt message is sent to the operation and maintenance personnel in time, and the destruction of the wind turbine caused by the coupled vibration can be avoided through the intervention of the operation and maintenance personnel.

[0092] In the present application, through the following specific method, the obtained operating states include 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.

[0093] The first processing unit is used to obtain the corresponding operating state, that is, the first coupled vibration, by processing the impeller speed and the vibration parameters. According to NF1, the dangerous range of the impeller speed is set as [RS1 - RS1*10%, RS1 + RS1*10%], denoted as [RS1-, RS1+], and its monitoring logic is as follows:

[0094] The real-time monitoring of the impeller speed is realized according to the obtained operating parameters. When the speed enters the interval [RS1-, RS1+], the timing starts, and the real-time speed RSi is recorded. Taking 60s as the time limit, the average speed RSm within 60s is calculated.

[0095]

[0096] Among them,

[0097] i—the i-th recorded speed;

[0098] n—the number of recorded speeds within 60s, equal to time * sampling frequency.

[0099] Furthermore, when the timing starts, if the situation of RSi < RS1 - RS1*15% or RSi > RS1 + RS1*15% occurs, the current timing is cancelled, and the above process is repeated when the next RSi falls into the interval [RS1-, RS1+].

[0100] For the obtained RSm, if it is within the interval [RS1-, RS1+], a warning is sent to the unit main control and the remote monitoring center that there is a resonance risk between the impeller rotation frequency and NF1, so that the unit can take protective measures. If RSm is outside the interval [RS1-, RS1+], no warning needs to be sent, and the unit continues to operate normally.

[0101] 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, it is to monitor the frequency coupling caused by the pitch action.

[0102] Perform Fourier transform on the pitch angles collected within every 60s;

[0103] like Figure 5 As shown, this figure is the pitch angle spectrum diagram under normal conditions. Figure 6 This is the case where the pitch angle change is coupled with the first-order natural frequency NF1 of the flexible tower. Judging from the results of Fourier transform, the frequency focus range is [NF1-NF1*10%, NF1+NF1*10%], recorded as [NF1-, NF1+], such as Figure 6 The frequency range between the two dashed lines.

[0104] The frequency range corresponding to NF2 is not considered here because the pitch angle does not change that fast, so it does not need to be considered.

[0105] Determine the maximum amplitude value in [NF1-, NF1+], recorded as PNF1, and at the same time, determine the amplitude limit Falarm based on the unit's operating data;

[0106] Determine whether there is a second coupled vibration. A PNF1 value can be obtained every 60 seconds and compared with Falarm. If PNF1>Falarm, it is counted once, otherwise, it is not recorded. A counting cycle of 10 minutes is considered a frequency coupling situation. If the count exceeds 7 within the counting cycle, it is considered that there is a frequency coupling situation, and an alarm is issued to the main control and remote monitoring center. There is a coupling risk between the pitch action frequency and NF1, so that the unit can take protective measures.

[0107] The third processing unit obtains the first coupled vibration, the second coupled vibration or the tower vibration by processing the vibration parameters only. In this embodiment, the monitoring of NF1 is performed by means of a vibration sensor group installed on the top of the flexible tower, and the monitoring of NF2 is performed by means of a 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.

[0108] When the wind turbine is running:

[0109] 1) Record vibration data in real time and perform Fourier transform on the collected vibration parameters every 60 seconds;

[0110] 2) If Figure 7 As shown, this is the vibration spectrum under normal conditions. Figure 8 This is a situation where there is abnormal vibration coupled with the first-order natural frequency NF1 of the tower. The Fourier transform results are judged, and the frequency focus range is [NF1-NF1*10%, NF1+NF1*10%], recorded as [NF1-, NF1+], such as Figure 8 The frequency range between the two dashed lines.

[0111] 3) Determine the maximum amplitude value in [NF1-, NF1+], recorded as Ftv1, and at the same time, determine the limit value Ft-alarm of the NF1 amplitude based on the data during normal operation of the unit;

[0112] 4) Determine whether there is frequency coupling. A Ftv1 value can be obtained every 60 seconds and compared with Ft-alarm. If Ftv1>Ft-alarm, it is counted once, otherwise, it is not recorded. A counting cycle of 10 minutes is considered a frequency coupling situation. If the count exceeds 7 within the cycle, it is considered that there is a frequency coupling situation, and an alarm is issued to the main control and remote monitoring center, indicating that the unit is at risk of tower resonance, so that the unit can take protective measures.

[0113] When the wind turbine stops:

[0114] 1) Record vibration data in real time and perform Fourier transform on the collected vibration data every 60 seconds;

[0115] 2) If Fig. 9 As shown, this is the vibration spectrum under normal conditions. Fig.10 This is a situation where there is abnormal vibration coupled with the first-order natural frequency NF1 of the tower. The Fourier transform results are judged, and the frequency focus range is [NF1-NF1*10%, NF1+NF1*10%], recorded as [NF1-, NF1+], such as Fig.10 The frequency range between the two dashed lines.

[0116] 3) Determine the maximum amplitude value in [NF1-, NF1+], recorded as Ftv1-s. At the same time, determine the limit value of NF1 amplitude Ft-alarm-s based on the data during normal operation of the unit;

[0117] 4) Every 60 seconds, a value of Ftv1-s is obtained and compared with Ft-alarm-s. If Ftv1-s>Ft-alarm-s, it is counted once, otherwise, it is not recorded. A counting cycle of 30 minutes is considered. If the count exceeds 25 within the cycle, it is considered that there is frequency coupling, and an alarm is issued to the main control and remote monitoring center, indicating that the unit is at risk of tower resonance. The unit is asked to take protective measures remotely, and at the same time, the sound alarm device starts to work, reminding people working in or near the tower to stay away from the unit.

[0118] It can be seen from the above technical scheme that this embodiment provides an operation status 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. A plurality of vibration sensor groups are arranged on different levels of the flexible tower. The operation monitoring device is specifically used to collect the state parameters of the wind turbine, which include the vibration parameters of the flexible tower and the operation parameters of the power generation device; the state parameters are processed to obtain the operation status of the wind turbine. Through this scheme, 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, thereby avoiding the impact on the safe operation of the wind turbine due to the coupled vibration.

[0119] Embodiment 3

[0120] This embodiment provides an electronic device, which can be understood as a computer device or controller with data calculation and information processing capabilities. The electronic device is respectively connected to the above-mentioned vibration sensor group and the main controller of the power generation equipment, and is provided with the operation status monitoring device of the previous embodiment. The electronic device is specifically used to collect the state parameters of the wind turbine set, and 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 status of the wind turbine set. Through this solution, the coupled vibration of the wind turbine set can be monitored in real time, so that the operation and maintenance personnel can intervene in real time according to the monitoring results, thereby avoiding the impact on the safe operation of the wind turbine set due to the coupled vibration.

[0121] Embodiment 4

[0122] Fig.12 A block diagram of an electronic device according to an embodiment of the present application.

[0123] like Fig.12 As shown, the electronic device provided in this embodiment can be understood as a computer device or controller with data calculation and information processing capabilities. The electronic device is respectively connected to the above-mentioned vibration sensor group and the main controller of the power generation equipment, and is provided with the operation status monitoring device of the previous embodiment. The electronic device includes at least one processor 301 and a memory 302, and the two are connected through a data bus 303. The memory is used to store computer programs or instructions, and the processor is used to execute corresponding computer programs or instructions, so that the electronic device implements the state monitoring method of the wind turbine provided in the first embodiment.

[0124] The state monitoring method specifically collects the state parameters of the wind turbine, including the vibration parameters of the flexible tower and the operating parameters of the power generation equipment; the state parameters are processed to obtain the operating 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, thereby avoiding the impact of coupled vibration on the safe operation of the wind turbine.

[0125] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0126] It will be appreciated by those skilled in the art that the embodiments of the present invention may be provided as methods, devices, or computer program products. Therefore, the embodiments of the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0127] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0128] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0129] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0130] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0131] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0132] The technical solution provided by the present invention is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A method for monitoring the operating status of a wind turbine, applied to electronic equipment, wherein the wind turbine comprises 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, and the vibration sensor group comprises two vibration sensors arranged at a vertical angle on the flexible tower, characterized in that: The operating status monitoring method comprises the steps of: Collecting state parameters of the wind turbine generator set, wherein the state parameters include vibration parameters of the flexible tower and operating parameters of the power generation equipment, wherein the operating parameters include impeller speed and pitch angle; Processing the state parameters to obtain the operating state of the wind turbine generator set specifically includes the following steps: Processing the vibration parameter and the impeller speed to obtain the operating state, wherein the operating state includes a first coupled vibration caused by the impeller rotation; Processing the vibration parameter and the pitch angle to obtain the operating state, wherein the operating state includes a second coupled vibration caused by a pitch changing 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 tower vibration.

2. The operating status monitoring method according to claim 1, characterized in that: The collecting of the state parameters of the wind turbine generator set comprises the following steps: collecting the vibration parameters from the vibration sensor group; The operating parameters are collected from a main controller of the power generation equipment.

3. A wind turbine operating status monitoring device, applied to electronic equipment, wherein the wind turbine comprises 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, and the vibration sensor group comprises two vibration sensors arranged at a vertical angle on the flexible tower, characterized in that: The operating status monitoring device comprises: A parameter collection module is configured to collect state parameters of the wind turbine generator set, wherein the state parameters include vibration parameters of the flexible tower and operating parameters of the power generation equipment, wherein the operating parameters include impeller speed and pitch angle; A data processing module is configured to process the state parameters to obtain the operating state of the wind turbine generator set, and the data processing module includes: A first processing unit, configured to process the vibration parameter and the impeller rotation speed to obtain the operating state, wherein the operating state includes a first coupled vibration caused by the impeller rotation; A second processing unit is used to process the vibration parameter and the pitch angle to obtain the operating state, wherein the operating state includes a second coupled vibration caused by a pitch changing action; The third processing unit is used 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 tower vibration.

4. The operating status monitoring device according to claim 3, characterized in that: The parameter acquisition module comprises: A first collecting unit, used for collecting the vibration parameters from the vibration sensor group; The second acquisition unit is used to acquire the operating parameters from the main controller of the power generation equipment.

5. 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 connected to the vibration sensor group and the main controller of the power generation equipment respectively, and includes the operation status monitoring device as described in claim 3 or 4.

6. 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 device is connected to the vibration sensor group and the main controller of the power generation device respectively, 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 used to execute the computer program or instruction so that the electronic device implements the operation status monitoring method as described in claim 1 or 2.

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