CN109357647B - Wind power equipment positioning monitoring system and method - Google Patents
Wind power equipment positioning monitoring system and method Download PDFInfo
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- CN109357647B CN109357647B CN201811149075.0A CN201811149075A CN109357647B CN 109357647 B CN109357647 B CN 109357647B CN 201811149075 A CN201811149075 A CN 201811149075A CN 109357647 B CN109357647 B CN 109357647B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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Abstract
The invention discloses a wind power equipment positioning monitoring system and a method, wherein the system comprises the following components: the device comprises a displacement sensor, an inclination sensor, a data acquisition unit, a server and an alarm system, wherein the displacement sensor detects displacement amounts of the generator in the horizontal direction, the vertical direction and the axial direction, and the inclination sensor monitors inclination angles of a mounting substrate of the generator. When any one of the displacement amount and the inclination angle in each direction exceeds a preset threshold value, the alarm system can send out a corresponding alarm prompt to prompt that the displacement amount in the designated direction of the generator of the designated unit exceeds the standard or the mounting substrate is deformed to cause the sinking of the wind turbine. The system and the method provided by the invention can be used for monitoring the displacement variation of the generator of the wind turbine generator on line in real time to reflect the centering precision of the wind turbine generator and the problem of misalignment between the generator and the gear box caused by deformation of the installation foundation, so that an abnormal unit can be timely and accurately found out and an alarm prompt is made, the annual centering work of workers is reduced, and the safe and stable operation of the wind turbine generator is ensured.
Description
Technical Field
The invention relates to the field of mechanical equipment monitoring, in particular to a wind power equipment positioning monitoring system and method.
Background
The wind turbine generator is usually installed on the field with abundant wind resources and on the mountain land, and the working environment is extremely bad. The wind speed and the wind direction change continuously along with time, the units are frequently connected and disconnected, the emergency stop is carried out, the load changes continuously, and the like, so that the wind turbine generator can generate a severe vibration phenomenon. With the continuous increase of running time, the phenomena of thickness change of a generator foundation gasket, loosening of foundation bolts and change of horizontal axial position can be generated, so that the installation positions of a generator and a gear box are changed relatively, the centering precision of a high-speed output shaft of the gear box and a torque input shaft of the generator is affected, the gravity center of the generator is separated from the central line of a tower due to the structural design of the generator set and the like, or the wind turbine generator can generate severe vibration due to the continuous change of the load of the generator set, yaw, pitch variation, shutdown and the like, and the generator of the wind turbine generator can generate sinking trend due to the action of gravity. The phenomenon that the angle of a coupling between a generator and a gear box is not centered can be caused by sinking of the generator of the wind turbine generator.
The running of the wind turbine generator under the condition of poor centering precision of the gear box and the generator seriously influences the health degree of the wind turbine generator, and even damages important structures such as the generator, the gear box and the like. The rotating parts such as the rotating shaft and the bearing of the generator are seriously damaged. In severe cases, important components such as a gearbox and a generator are damaged. Bringing great economic loss to the wind farm. The traditional regular centering checking mode is difficult to timely and accurately find the centering accuracy problem of the wind turbine generator and the phenomenon that the generator is not centered with the gear box due to the sinking of the generator.
Disclosure of Invention
Therefore, the invention provides a wind power equipment positioning monitoring system and method, which solve the problem that the wind power equipment cannot be timely and accurately monitored for abnormal conditions in the prior art.
The embodiment of the invention provides a wind power equipment positioning and monitoring system, which comprises the following components: the system comprises a displacement sensor, an inclination angle sensor, a data acquisition unit, a server and an alarm system, wherein the displacement sensor monitors the displacement of a generator; the inclination sensor monitors the inclination angle of the generator mounting substrate; the data acquisition unit acquires the displacement and the inclination angle, processes the displacement and the inclination angle and converts the displacement and the inclination angle into a displacement digital signal and an inclination angle digital signal respectively; the server acquires a displacement zero point reference value and an inclination angle zero point reference value, and respectively judges whether a first difference value between the displacement digital signal and the displacement zero point reference value is larger than a displacement alarm threshold value or not, and whether a second difference value between the inclination angle digital signal and the inclination angle zero point reference value is larger than an inclination angle alarm threshold value or not; when the first difference value is larger than the displacement alarm threshold value and/or the second difference value is larger than the inclination angle alarm threshold value, the server generates an alarm indication signal and sends the alarm indication signal to the alarm system; the alarm system responds to the alarm indication signal and sends out an alarm indication.
Preferably, the server acquires the displacement monitored by the displacement sensor and the inclination angle monitored by the inclination angle sensor when the generator and the gear box are in a centering state, and respectively uses the displacement and inclination angle as a displacement zero point reference value and an inclination angle zero point reference value, and updates the displacement zero point reference value and the inclination angle zero point reference value after the generator and the gear box of the wind turbine generator are in a centering state again according to an alarm prompt.
Preferably, the displacement sensor includes: the horizontal displacement sensor, the vertical displacement sensor and the axial displacement sensor are symmetrically arranged in the horizontal direction, the vertical direction and the axial direction of the front foot margin and the rear foot margin of the generator respectively by taking the central shaft of the generator as a symmetry line.
Preferably, the server sets corresponding displacement alarm thresholds for the horizontal displacement sensor, the vertical displacement sensor and the axial displacement sensor respectively, and when at least one of the displacement amounts in the horizontal direction, the vertical direction and the axial direction of the generator and the difference value of each displacement zero point reference value is greater than the corresponding displacement alarm threshold, the alarm system sends an alarm prompt.
Preferably, the inclination sensor is arranged on a generator mounting substrate at a preset distance from the central line of the tower.
Preferably, the inclination sensor is disposed at an edge position of the generator mounting substrate farthest from the center line of the tower.
The embodiment of the invention also provides a wind power equipment positioning and monitoring method, which comprises the following steps: acquiring the displacement of the generator and the inclination angle of the generator mounting substrate; processing the displacement and the inclination angle to convert the displacement and the inclination angle into displacement digital signals and inclination angle digital signals; acquiring a displacement zero point reference value and an inclination zero point reference value, and respectively judging whether a first difference value between the displacement digital signal and the displacement zero point reference value is larger than a displacement alarm threshold value or not, and whether a second difference value between the inclination angle digital signal and the inclination zero point reference value is larger than an inclination angle alarm threshold value or not; and generating an alarm indication signal when the first difference value is larger than the displacement alarm threshold value and/or the second difference value is larger than the inclination angle alarm threshold value.
Preferably, the step of obtaining the displacement amount of the generator specifically comprises the step of obtaining the displacement amounts of the generator in the horizontal direction, the vertical direction and the axial direction.
Preferably, the step of generating an alarm indication signal when the first difference is greater than the displacement alarm threshold and/or when the second difference is greater than the inclination alarm threshold specifically includes: and generating an alarm indication signal when at least one of the displacement amounts of the horizontal direction, the vertical direction and the axial direction of the generator and the difference value of each displacement zero point reference value and the second difference value of the inclination angle and the inclination angle zero point reference value is larger than a corresponding alarm threshold value.
The technical scheme of the invention has the following advantages:
The invention provides a wind power equipment positioning monitoring system and a method, wherein the system comprises the following steps: the system comprises a displacement sensor, an inclination sensor, a data acquisition unit, a server and an alarm system, wherein the displacement sensor is installed in the horizontal, vertical and axial directions of front and rear ground feet of a generator in a wind turbine generator set respectively and used for detecting displacement variation of the horizontal, vertical and axial directions of the generator, and the inclination sensor is used for monitoring inclination angles of installation substrates of the generator. When any one of displacement data in the horizontal direction, the vertical direction and the axial direction and the inclination angle exceeds a preset threshold value, the alarm system sends out a corresponding alarm prompt, and prompts that the displacement of the generator of the appointed unit exceeds the standard or the mounting substrate deforms to cause the sinking of the wind turbine. Not only reduces the annual centering work of staff, but also ensures the safe and stable operation of the wind turbine generator.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a composition diagram of a specific example of a wind power equipment positioning monitoring system provided by an embodiment of the present invention;
FIG. 2 is a composition diagram of a specific example of a wind power plant according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an installation position of a displacement sensor according to an embodiment of the present invention;
FIG. 4 is a schematic view showing a specific example of an installation position of a displacement sensor according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of measuring an inclination angle of a mounting substrate according to an embodiment of the present invention;
FIG. 6 is a flowchart of a specific example of a wind power equipment positioning monitoring method according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, or can be communicated inside the two components, or can be connected wirelessly or in a wired way. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
An embodiment of the present invention provides a wind power equipment positioning monitoring system, as shown in fig. 1, the system includes: displacement sensor 1, inclination sensor 2, data acquisition unit 3, server 4 and alarm system 5, wherein:
The displacement sensor 1 monitors the displacement of the generator, and the inclination sensor 2 monitors the inclination angle of the generator mounting substrate; the data acquisition unit 3 acquires displacement and inclination angle, processes and converts the displacement and inclination angle into a displacement digital signal and an inclination angle digital signal respectively; the server 4 acquires a displacement zero point reference value and an inclination angle zero point reference value, and respectively judges whether a first difference value of the displacement digital signal and the displacement zero point reference value is larger than a displacement alarm threshold value or not, and whether a second difference value of the inclination angle digital signal and the inclination angle zero point reference value is larger than an inclination angle alarm threshold value or not; when the first difference value is larger than the displacement alarm threshold value and/or the second difference value is larger than the inclination angle alarm threshold value, the server 4 generates an alarm indication signal and sends the alarm indication signal to the alarm system 5; the alarm system 5 issues an alarm indication in response to the alarm indication signal.
In practical application, the data acquisition unit 3 is arranged at a proper position of the wind turbine generator cabin, so that the working environment of the data acquisition unit 3 is met, and the normal operation and maintenance work of the wind turbine generator are not influenced. The server 4 is installed in a central room of the wind farm.
In practical application, as the running time of the wind turbine generator is continuously increased, the thickness of a foundation pad of the generator, the loosening of foundation bolts and the change of the horizontal axial position can be caused due to the larger influence on core rotating parts such as the generator and the gearbox, so that the installation positions of the generator and the gearbox are relatively changed, and the centering accuracy of a high-speed output shaft of the gearbox and a torque input shaft of the generator is affected, or the wind turbine generator can generate severe vibration due to the continuous change of the load of the generator, yaw, pitch variation, shutdown and other reasons. Along with the continuous increase of the running time of the wind turbine generator, the gravity action can lead the wind turbine generator to generate a sinking trend, so that the displacement sensor 1 is required to monitor the displacement of the generator and the inclination sensor 2 is required to monitor the inclination angle of the generator mounting substrate, and when the change value of the displacement or the inclination angle is greater than a preset threshold value, an alarm prompt is sent to prompt a worker to perform centering correction.
In the embodiment of the invention, the server 4 acquires the displacement monitored by the displacement sensor 1 and the inclination angle monitored by the inclination angle sensor 2 when the generator and the gear box are in a centering state, and respectively uses the displacement zero point reference value and the inclination angle zero point reference value as a displacement zero point reference value and an inclination angle zero point reference value, and updates the displacement zero point reference value and the inclination angle zero point reference value after the generator and the gear box of the wind turbine generator are in a centering state again according to an alarm prompt.
In practical application, as shown in fig. 2, the gear box 21 and the generator 22 of the wind turbine generator are structurally mounted in the nacelle 24 at the top of the tower 23, and the generator 22 and the gear box 21 are structurally mounted on the same mounting substrate 25. When an operator installs the wind power equipment, the wind power equipment needs to be in a centering state between the generator 22 and the gear box 21, namely, a state that the high-speed shaft centering precision between the input end of the generator 22 and the gear box 21 meets the normal working requirement is needed, and under the condition of the state, the server 4 acquires the displacement monitored by the displacement sensor 1 and the inclination angle monitored by the inclination sensor 2 to serve as a displacement zero point reference value and an inclination zero point reference value respectively.
In addition, after the operator re-centers the input end of the generator 22 with the high-speed shaft of the gear box 21 according to the alarm prompt, the server 4 re-acquires the displacement monitored by the displacement sensor 1 and the inclination angle monitored by the inclination sensor 2 in the normal working state, and updates the displacement zero point reference value and the inclination zero point reference value.
In a preferred embodiment, as shown in fig. 3, the displacement sensor 1 comprises: the horizontal displacement sensor 11, the vertical displacement sensor 12 and the axial displacement sensor 13 are symmetrically arranged in the horizontal direction, the vertical direction and the axial direction of the front and rear feet of the generator 22 respectively by taking the central axis of the generator 22 as a symmetry line of the horizontal displacement sensor 11, the vertical displacement sensor 12 and the axial displacement sensor 13.
In the embodiment of the present invention, as shown in fig. 4, two horizontal displacement sensors 11 are provided in the horizontal direction near the ground of the generator 22; in the vertical direction, four vertical displacement sensors 12 are arranged near the ground feet of the generator 22 and are respectively arranged at four corners of the generator 22; in the axial direction, two axial displacement sensors 13 are provided near the right and left ground corners of the drive end shaft of the generator 22 in the direction in which the drive end shaft of the generator 22 is parallel to the generator 22 shaft.
The server 4 sets corresponding displacement alarm thresholds for the horizontal displacement sensor 11, the vertical displacement sensor 12 and the axial displacement sensor 13 respectively, and when at least one of the displacement amounts in the horizontal direction, the vertical direction and the axial direction of the generator 22 and the difference value of each displacement zero point reference value is larger than the corresponding displacement alarm threshold, the alarm system 5 sends an alarm prompt.
In the embodiment of the invention, the inclination sensor 2 is arranged on a generator mounting substrate which is at a preset distance from the central line of the tower. In a preferred embodiment, as shown in fig. 3, the inclination sensor is disposed at the edge of the generator mounting substrate that is farthest from the center line of the tower, for example, 1 cm below the mounting substrate, but not limited thereto, and may be properly disposed according to practical situations. As shown in fig. 5, when the mounting board 25 of the wind turbine generator is deformed to cause the generator 22 to be settled, the inclination angle α of the entire mounting board is obtained from the angle β measured by the inclination sensor 2.
The invention provides a wind power equipment positioning monitoring system, which comprises: the system comprises a displacement sensor, an inclination sensor, a data acquisition unit, a server and an alarm system, wherein the displacement sensor is installed in the horizontal, vertical and axial directions of front and rear ground feet of a generator in a wind turbine generator set respectively and used for detecting displacement variation of the horizontal, vertical and axial directions of the generator, and the inclination sensor is used for monitoring inclination angles of installation substrates of the generator. When any one of displacement data in the horizontal direction, the vertical direction and the axial direction and the inclination angle exceeds a preset threshold value, the alarm system sends out a corresponding alarm prompt, prompts that the displacement of the generator of the appointed unit exceeds the standard or the mounting substrate deforms to cause the wind turbine to sink. Not only reduces the annual centering work of staff, but also ensures the safe and stable operation of the wind turbine generator.
Example 2
The embodiment of the invention provides a wind power equipment positioning monitoring method, as shown in fig. 6, which comprises the following steps:
and S1, acquiring the displacement of the generator and the inclination angle of the generator mounting substrate.
In the embodiment of the invention, two horizontal displacement sensors are arranged in the horizontal direction near the ground feet of the generator; in the vertical direction, four vertical displacement sensors are arranged near the foundation of the generator and are respectively arranged at four corners of the generator; in the axial direction, two axial displacement sensors are arranged near ground angles at the left side and the right side of the driving end of the generator in the direction of the axial direction of the driving end of the generator parallel to the shaft of the generator so as to acquire the displacement of the generator, and an inclination sensor is arranged at the edge position of the mounting substrate of the generator so as to acquire the inclination angle of the mounting substrate of the generator.
And S2, processing the displacement and the inclination angle and converting the processed displacement and the inclination angle into a displacement digital signal and an inclination angle digital signal.
In the embodiment of the invention, the displacement and the inclination angle acquired by the displacement sensor and the inclination sensor are processed and converted into the displacement digital signal and the inclination angle digital signal through the data acquisition unit.
And S3, acquiring a displacement zero point reference value and an inclination angle zero point reference value, and respectively judging whether a first difference value of the displacement digital signal and the displacement zero point reference value is larger than a displacement alarm threshold value or not, and whether a second difference value of the inclination angle digital signal and the inclination angle zero point reference value is larger than an inclination angle alarm threshold value or not.
In a preferred embodiment, when an operator installs the wind power equipment, the wind power equipment needs to be in a centering state between the generator and the gear box, namely, a state that the high-speed shaft centering precision of the input end of the generator and the gear box meets the normal working requirement is needed, and under the condition of the state, the server acquires the displacement monitored by the displacement sensor and the inclination angle monitored by the inclination angle sensor to serve as a displacement zero point reference value and an inclination angle zero point reference value respectively. In addition, after the staff re-centers the input end of the generator with the high-speed shaft of the gear box according to the alarm prompt, the server re-acquires the displacement monitored by the displacement sensor and the inclination angle monitored by the inclination angle sensor in the centered state, and updates the displacement zero point reference value and the inclination angle zero point reference value.
And S4, when the first difference value is larger than the displacement alarm threshold value and/or the second difference value is larger than the inclination angle alarm threshold value, generating an alarm indication signal.
In an embodiment, when one of the first difference value and the second difference value is greater than the corresponding alarm threshold value, alarm indication signals are generated; in another embodiment, the alarm indication signal is generated when both the first difference and the second difference are greater than their corresponding alarm thresholds.
In the embodiment of the invention, when at least one of the difference value between the displacement amounts of the horizontal direction, the vertical direction and the axial direction of the generator and each displacement zero point reference value and the difference value between the inclination angle and the inclination angle zero point reference value is larger than the corresponding alarm threshold value, an alarm indication signal is generated.
According to the wind power equipment positioning monitoring method, displacement sensors are respectively arranged in the horizontal, vertical and axial directions of front and rear ground feet of a generator in a wind turbine generator, and are used for detecting displacement variation in the horizontal, vertical and axial directions of the generator, and an inclination sensor is used for monitoring the inclination angle of a generator mounting substrate. When any one of displacement data in the horizontal direction, the vertical direction and the axial direction and the inclination angle exceeds a preset threshold value, the alarm system sends out a corresponding alarm prompt, prompts that the displacement of the generator of the appointed unit exceeds the standard or the mounting substrate deforms to cause the sinking of the wind turbine, can monitor the displacement variation of the generator of the wind turbine on line in real time to reflect the centering precision of the wind turbine, and can accurately find out the abnormal unit in time and make an alarm prompt due to the misalignment problem of the generator and the gear box caused by the deformation of the mounting foundation. Not only reduces the annual centering work of staff, but also ensures the safe and stable operation of the wind turbine generator.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.
Claims (8)
1. A wind power plant positioning monitoring system, comprising: the displacement sensor, the inclination angle sensor, the data acquisition unit, the server and the alarm system, wherein,
The displacement sensor monitors the displacement of the generator;
The inclination sensor monitors the inclination angle of the generator mounting substrate, and is arranged on the generator mounting substrate at a preset distance from the central line of the tower;
the data acquisition unit acquires the displacement and the inclination angle, processes the displacement and the inclination angle and converts the displacement and the inclination angle into a displacement digital signal and an inclination angle digital signal respectively;
The server acquires a displacement zero point reference value and an inclination zero point reference value, respectively judges whether a first difference value between the displacement digital signal and the displacement zero point reference value is larger than a displacement alarm threshold value, and whether a second difference value between the inclination angle digital signal and the inclination zero point reference value is larger than an inclination angle alarm threshold value, wherein the displacement zero point reference value is used for representing displacement monitored by a displacement sensor when the generator and the gear box are in a centering state, and the inclination zero point reference value is used for representing inclination angle monitored by the inclination sensor when the generator and the gear box are in a centering state;
When the first difference value is larger than the displacement alarm threshold value and/or the second difference value is larger than the inclination angle alarm threshold value, the server generates an alarm indication signal and sends the alarm indication signal to the alarm system;
the alarm system responds to the alarm indication signal and sends out an alarm indication.
2. The wind power equipment positioning monitoring system according to claim 1, wherein the server obtains the displacement monitored by the displacement sensor and the inclination angle monitored by the inclination sensor when the generator and the gearbox are in a centered state, and respectively uses the displacement zero reference value and the inclination zero reference value as a displacement zero reference value and an inclination zero reference value, and updates the displacement zero reference value and the inclination zero reference value after the generator and the gearbox of the wind power unit are in a centered state again according to an alarm prompt.
3. The wind power plant positioning monitoring system of claim 1, wherein the displacement sensor comprises: the horizontal displacement sensor, the vertical displacement sensor and the axial displacement sensor are symmetrically arranged in the horizontal direction, the vertical direction and the axial direction of the front foot margin and the rear foot margin of the generator respectively by taking the central shaft of the generator as a symmetry line.
4. A wind power equipment positioning monitoring system according to claim 3, wherein the server sets corresponding displacement alarm thresholds for the horizontal displacement sensor, the vertical displacement sensor and the axial displacement sensor respectively, and when at least one of the displacement amounts in the horizontal direction, the vertical direction and the axial direction of the generator and the difference value of each displacement zero point reference value is larger than the corresponding displacement alarm threshold, the alarm system sends an alarm prompt.
5. A wind power plant positioning monitoring system according to claim 1, wherein the tilt sensor is provided at an edge position of the generator mounting substrate furthest from the tower centerline.
6. The wind power equipment positioning and monitoring method is characterized by comprising the following steps of:
acquiring the displacement of the generator and the inclination angle of the generator mounting substrate;
processing the displacement and the inclination angle to convert the displacement and the inclination angle into displacement digital signals and inclination angle digital signals;
Acquiring a displacement zero point reference value and an inclination zero point reference value, respectively judging whether a first difference value between the displacement digital signal and the displacement zero point reference value is larger than a displacement alarm threshold value, and whether a second difference value between the inclination angle digital signal and the inclination zero point reference value is larger than an inclination angle alarm threshold value, wherein the displacement zero point reference value is used for representing displacement monitored by a displacement sensor when a generator and a gear box are in a centering state, and the inclination zero point reference value is used for representing an inclination angle monitored by the inclination sensor when the generator and the gear box are in a centering state;
And generating an alarm indication signal when the first difference value is larger than the displacement alarm threshold value and/or the second difference value is larger than the inclination angle alarm threshold value.
7. The wind power equipment positioning and monitoring method according to claim 6, wherein the step of obtaining the displacement of the generator specifically comprises:
And obtaining displacement amounts of the generator in the horizontal direction, the vertical direction and the axial direction.
8. The wind power equipment positioning and monitoring method according to claim 7, wherein the step of generating an alarm indication signal when the first difference is greater than the displacement alarm threshold and/or when the second difference is greater than the inclination alarm threshold specifically comprises:
And generating an alarm indication signal when at least one of the displacement amounts of the horizontal direction, the vertical direction and the axial direction of the generator and the difference value of each displacement zero point reference value and the second difference value of the inclination angle and the inclination angle zero point reference value is larger than a corresponding alarm threshold value.
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| CN114109741B (en) * | 2021-11-22 | 2023-12-22 | 江苏科技大学 | Centering monitoring system and method for wind power generator shaft |
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