CN110500238A - Method and device for determining vibration displacement of tower top of wind generating set - Google Patents
Method and device for determining vibration displacement of tower top of wind generating set Download PDFInfo
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- CN110500238A CN110500238A CN201810474365.6A CN201810474365A CN110500238A CN 110500238 A CN110500238 A CN 110500238A CN 201810474365 A CN201810474365 A CN 201810474365A CN 110500238 A CN110500238 A CN 110500238A
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 68
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- 238000012544 monitoring process Methods 0.000 claims abstract description 144
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
Abstract
A method and apparatus for determining vibrational displacement of a tower top of a wind turbine generator system is provided, the method comprising: acquiring the real-time position of a first preset monitoring point at the top of the cabin in real time through a satellite positioning system; determining the real-time position of a second predetermined monitoring point based on the real-time position of the first predetermined monitoring point; determining the real-time position of the tower top center based on the real-time position of the first preset monitoring point and the real-time position of the second preset monitoring point; and determining the vibration displacement of the center of the tower top according to the initial position of the center of the tower top in the tower stress-free state and the determined real-time position of the center of the tower top. By adopting the method and the device for determining the vibration displacement of the tower top of the wind generating set, the accuracy of the measurement of the vibration displacement of the tower top of the wind generating set can be improved.
Description
Technical field
All things considered of the present invention is related to technical field of wind power generation, more particularly, is related to a kind of determining wind-driven generator
The method and apparatus of the vibration displacement of the tower top of group.
Background technique
Wind power generating set outdoors both born the weight of wind power generating set itself while also having held by high dry running, tower
By wind load, suffered load is more complicated.Generally for inverting tower arbitrary section, institute is loaded, needs to measure the vibration position of tower top
It moves.
Currently, the vibration displacement of tower top can be measured using displacement vibration sensor, but the low frequency of displacement vibration sensor
Characteristic is bad, and the tower oscillation frequency of wind power generating set causes measurement accuracy poor just in low-frequency range.In addition, displacement
Vibrating sensor can only measure relative displacement of the tower top relative to its equilbrium position, and it is exhausted with respect to tower bottom center to be unable to measure tower top
To displacement.
In addition to this, the vibration displacement of tower top can be also measured using laser vibration measurer, but laser vibration measurer once can only
Measure the displacement of a point, can not the load in the multiple sections of Simultaneous Inversion be not suitable for batch in addition, laser vibration measurer is at high cost
Change and be equipped with, and is difficult to install.
Summary of the invention
A kind of vibration position of the tower top for being designed to provide determining wind power generating set of exemplary embodiment of the present invention
The method and apparatus of shifting, to overcome at least one above-mentioned disadvantage.
One side according to an exemplary embodiment of the present invention provides a kind of vibration position of the tower top of determining wind power generating set
The method of shifting, which comprises the real time position of the first predetermined monitoring point of nacelle top is obtained by global position system；
Based on the described first predetermined monitoring point real time position determine nacelle top the second predetermined monitoring point real time position；Based on institute
The real time position for stating the second predetermined monitoring point determines the real time position at tower top center；According to tower top center in pylon internal stress free shape
The real time position of initial position and the tower top center determined under state determines the vibration displacement at tower top center.
Optionally, the real time position based on the described first predetermined monitoring point determines the second predetermined monitoring point of nacelle top
The step of real time position can include: obtain the angle of the basic course angle of global position system in real time by global position system
Value；The real time position of the first predetermined monitoring point based on acquisition, the angle value of the basic course angle and the first predetermined monitoring
The distance between point and the second predetermined monitoring point determine the real time position of the second predetermined monitoring point.
Optionally, the step of real time position based on the described second predetermined monitoring point determines the real time position at tower top center can
Include: according to the real time position of the second predetermined monitoring point, the angle value of the basic course angle and the second predetermined monitoring point with
The distance between tower top center determines the real time position at tower top center.
Optionally, initial position of the tower top center under pylon internal stress free state can be determined in the following manner: In
When operating condition is in small wind state, windless condition or wind power generating set and is in standby, control wind power generating set executes pre-
Fixed movement, the initial position at tower top center is determined by the motion track of the real time position of the first predetermined monitoring point of acquisition.
Optionally, the predetermined action may include the pre- fixing turn of cabin yaw for controlling wind power generating set, wherein can lead to
Over-fitting obtains the center of circle of the motion track of the real time position of the first predetermined monitoring point, the center of circle for the motion track that fitting is obtained
Initial position as tower top center.
Optionally, the reality of the initial position according to tower top center under pylon internal stress free state and the tower top center determined
When position the step of determining the vibration displacement at tower top center can include: global position system is obtained by global position system in real time
Basic course angle angle value；The initial position of real time position, tower top center based on tower top center and the basic course
The angle value at angle determines vibration displacement of the tower top center on the first predetermined direction and the second predetermined direction.
Another aspect according to an exemplary embodiment of the present invention provides a kind of vibration of the tower top of determining wind power generating set
The equipment of displacement, the equipment include: that position data obtains module, and obtain nacelle top from global position system first makes a reservation for
The real time position of monitoring point；Position data determining module determines cabin top based on the real time position of the described first predetermined monitoring point
The real time position of the predetermined monitoring point of the second of portion；Tower top center determining module, the reality based on the described second predetermined monitoring point
When position determine the real time position at tower top center；Vibration displacement determining module, according to tower top center in pylon internal stress free state
Under initial position and the real time position at the tower top center determined determine the vibration displacement at tower top center.
Optionally, position data determining module can include: course angle acquisition submodule obtains in real time from global position system
The angle value of the basic course angle of global position system；Position determination submodule, the reality of the first predetermined monitoring point based on acquisition
When position, the angle value of the basic course angle and the determination of the distance between the first predetermined monitoring point and the second predetermined monitoring point
The real time position of second predetermined monitoring point.
Optionally, tower top center determining module is according to the real time position of the second predetermined monitoring point, the basic course
The angle value at angle and the distance between the second predetermined monitoring point and tower top center determine the real time position at tower top center.
Optionally, the equipment can further include initial position determining module, operating condition be in small wind state, windless condition or
When wind power generating set is in standby, control wind power generating set executes predetermined action, makes a reservation for prison by the first of acquisition
The motion track of the real time position of measuring point determines initial position of the tower top center under pylon internal stress free state.
Optionally, the predetermined action may include the pre- fixing turn of cabin yaw for controlling wind power generating set, wherein initial
Position determination module can obtain the center of circle of the motion track of the real time position of the first predetermined monitoring point by fitting, and fitting is obtained
Motion track initial position of the center of circle as tower top center.
Optionally, vibration displacement determining module can obtain in real time the basic course of global position system from global position system
The angle value at angle, and the angle of the real time position based on tower top center, the initial position at tower top center and the basic course angle
It is worth the vibration displacement for determining tower top center on the first predetermined direction and the second predetermined direction.
It is according to an exemplary embodiment of the present invention a kind of to be stored with the computer-readable of computer program in another aspect, providing
Storage medium, when the computer program realizes the vibration of the tower top of above-mentioned determination wind power generating set when being executed by processor
The method of dynamic displacement.
It is according to an exemplary embodiment of the present invention in another aspect, providing a kind of computing device, which is characterized in that the calculating
Device includes: processor；Memory is stored with computer program, when the computer program is executed by processor, in realization
The method of the vibration displacement of the tower top for the determination wind power generating set stated.
Using the method and apparatus of the vibration displacement of the tower top of the determination wind power generating set of exemplary embodiment of the present,
It can be improved the accuracy of the vibration displacement measurement to the tower top of wind power generating set.
Detailed description of the invention
Pass through the detailed description carried out below with reference to the attached drawing for being exemplarily illustrated embodiment, exemplary embodiment of the present
Above and other objects, features and advantages will become apparent.
The method that Fig. 1 shows the vibration displacement of the tower top of determining wind power generating set according to an exemplary embodiment of the present invention
Flow chart；
The stream for the step of Fig. 2 shows the real time positions of the predetermined monitoring point of determination second according to an exemplary embodiment of the present invention
Cheng Tu；
Fig. 3 shows the real time position variation at the tower top center of wind power generating set according to an exemplary embodiment of the present invention
Schematic diagram；
The equipment that Fig. 4 shows the vibration displacement of the tower top of determining wind power generating set according to an exemplary embodiment of the present invention
Block diagram；
Fig. 5 shows the block diagram of position data determining module according to an exemplary embodiment of the present invention.
Specific embodiment
Now, different example embodiments is more fully described with reference to the accompanying drawings, some exemplary embodiments are in the accompanying drawings
It shows.
The method that Fig. 1 shows the vibration displacement of the tower top of determining wind power generating set according to an exemplary embodiment of the present invention
Flow chart.
Referring to Fig.1, in step slo, the reality of the first predetermined monitoring point of nacelle top is obtained by global position system
When position.
Here, it should be appreciated that tower top can refer to the nacelle top of wind power generating set in exemplary embodiments of the present invention, and first
Predetermined monitoring point can be any point in the nacelle top of wind power generating set.
As an example, global position system can be global positioning system (Global Positioning System, GPS)
Or Beidou satellite navigation system (BeiDou Navigation Satellite System, BDS).Preferably, the first predetermined prison
Measuring point position can be the position of the receiver of arrangement global position system.Here, due to closer to nacelle top (that is,
Further away from tower bottom) vibration displacement at tower top center is more obvious, therefore, between the first predetermined monitoring point position and tower bottom away from
From remoter, the vibration displacement at tower top center determined by the method for exemplary embodiment is more accurate through the invention.
In step S20, determine that the second of nacelle top makes a reservation for based on the real time position of the first predetermined monitoring point of acquisition
The real time position of monitoring point.
Preferably, it can be determined based on the basic course angle of the real time position of the first predetermined monitoring point and global position system
The real time position of second predetermined monitoring point.The step of real time position for determining the second predetermined monitoring point is introduced referring to Fig. 2.
The stream for the step of Fig. 2 shows the real time positions of the predetermined monitoring point of determination second according to an exemplary embodiment of the present invention
Cheng Tu.
The basic course angle of global position system is obtained in real time by global position system in step s 201 referring to Fig. 2
Angle value.
Here, the second predetermined monitoring point can in the nacelle top of wind power generating set in addition to the first predetermined monitoring point
Any point, it is preferable that the second predetermined monitoring point can for using tower top center as the center of circle, with the first predetermined monitoring point position
The distance between tower top center is that any of the first predetermined monitoring point that pass through of the circle of radius is not predetermined on the string of diameter
Point at position.As an example, the second predetermined monitoring point can be the midpoint of above-mentioned string.The basic course angle of global position system
Angle value can be indicated from the first predetermined monitoring point position to the line direction of the second predetermined monitoring point position and due north
The angle in direction.
In step S202, the real time position of the first predetermined monitoring point based on acquisition, the basis of global position system are navigated
The second predetermined monitoring point is determined to the angle value at angle and the distance between the first predetermined monitoring point and the second predetermined monitoring point
Real time position.
Here, in place when selecting the first predetermined monitoring point position and the second predetermined monitoring point in nacelle top
After setting, the distance between two o'clock can be directly obtained by measuring, be measured for example, the measuring tools such as tape measure can be used.
It should be understood that can be in the way of existing geometric operation come the real time position based on the first predetermined monitoring point, global position system
The angle value of basic course angle and the distance between the first predetermined monitoring point and the second predetermined monitoring point determine the second predetermined prison
The real time position of measuring point, the present invention repeat no more the content of this part.
Fig. 1 is returned, in step s 30, is navigated according to the basis of the real time position of the second predetermined monitoring point, global position system
The real time position at tower top center is determined to the angle value at angle and the distance between the second predetermined monitoring point and tower top center.
As an example, in exemplary embodiments of the present invention, it can be by tower top flange (for connecting the tower top flange of cabin)
The position of central point be determined as tower top center position.Here, the first predetermined monitoring point is arranged in nacelle top, and machine
There is translational movement in cabin and the rotary motion centered on tower top center therefore need to be by means of second in nacelle top
The real time position of predetermined monitoring point and the angle value of basic course angle determine the real time position at tower top center.
Preferably, it determines using the angle value of the basic course angle of global position system from tower top center position
To the line direction of the second predetermined monitoring point position and the angle of direct north, thus according to the reality of the second predetermined monitoring point
When position, above-mentioned angle and the distance between the second predetermined monitoring point and tower top center determine the real time position at tower top center.
It here, can be in the way of existing geometric operation come real time position, satellite positioning based on the second predetermined monitoring point
The angle value of the basic course angle of system and the distance between the second predetermined monitoring point and tower top center determine tower top center
Real time position, the present invention repeat no more the content of this part.
It should be understood that the reality of the above-mentioned real time position and tower top center for determining the second predetermined monitoring point based on global position system
When position mode it is merely illustrative, those skilled in the art can also determine second based on global position system by other means
The real time position of predetermined monitoring point and the real time position at tower top center.
In step s 40, according to tower top center in the initial position under pylon internal stress free state and the tower top determined
The real time position of the heart determines the vibration displacement at tower top center.
For example, can real time position based on tower top center, tower top center initial position and pass through global position system
The angle value of the basic course angle of the global position system obtained in real time determines tower top center in the vibration position of the first predetermined direction
Shifting and the vibration displacement on the second predetermined direction.As an example, the first predetermined direction can refer to be parallel to wind power generating set
Main shaft is directed toward the direction of cabin by wheel hub；Second predetermined direction can refer in the horizontal plane perpendicular to the first predetermined direction, and by
Cabin faces the right direction of wheel hub.It should be understood that all positions are referred in the earth in exemplary embodiments of the present invention
Coordinate position under coordinate system.
Preferably, initial position of the tower top center under pylon internal stress free state can be determined in the following manner: In
When operating condition is in small wind state, windless condition or wind power generating set and is in standby, control wind power generating set executes pre-
Fixed movement, the initial position at tower top center is determined by the motion track of the real time position of the first predetermined monitoring point of acquisition.
As an example, the predetermined action may include the pre- fixing turn of cabin yaw for controlling wind power generating set, it is preferable that
The center of circle of the motion track of the real time position of the first predetermined monitoring point can be obtained by fitting, the motion track that fitting is obtained
Initial position of the center of circle as tower top center.Here, the real-time of the first predetermined monitoring point can be obtained by various fit approach
The center of circle of the motion track of position, the present invention repeat no more the content of this part.
It should be understood that the side of the vibration displacement in the tower top of determining wind power generating set according to an exemplary embodiment of the present invention
After method determines the vibration displacement at tower top center, in combination with the modal parameter of pylon, Simultaneous Inversion goes out pylon in multiple sections
Situation loaded, do not need to arrange a large amount of strain transducers along pylon.In addition, being determined in tower top by global position system
The disadvantage that the vibration displacement of the heart can also effectively overcome displacement vibration sensor low-frequency effect bad.
The specific of the vibration displacement at the tower top center of determining wind power generating set is introduced below with reference to example shown in Fig. 3
Process.
Fig. 3 shows the real time position variation at the tower top center of wind power generating set according to an exemplary embodiment of the present invention
Schematic diagram.
As shown in figure 3, under the conditions of theoretical pylon is initial agravic, the position at tower top center and the position at tower bottom center
It is O` point shown in figure, that is, the position at tower top center and the position at tower bottom center are overlapped.But since ground Flange Plane is inclined
The factors such as oblique or pylon concentricity foozle, can make the tower top center after the pylon of wind power generating set is installed
Relative to the position at tower bottom center certain deviation occurs for position, may be assumed that the position at tower top center is deviated from O` point in this example
O point is arrived.O point at this time is the position under pylon internal stress free (that is, tower bottom is without bending load) state where tower top center,
O point can be known as to initial position of the tower top center under pylon internal stress free state.
For wind power generating set, the quality of impeller and generator is all very big, is typically distributed across the front end of pylon,
The mass center of head is caused to be located at the front end of pylon, therefore, under the Moment that gravity is formed, pylon meeting run-off the straight, at this point,
The position at tower top center can be offset to the position of A point from O point.In the art usually using A point as the balance position at tower top center
It sets, due to that can not determine initial position O point of the tower top center under pylon internal stress free state in the prior art, one
As be by displacement vibration sensor be arranged at the A point of tower top center, determine tower with the data obtained according to displacement vibration sensor
Vibration displacement of the top center relative to equilbrium position A point.
Preferably, in exemplary embodiments of the present invention, the receiver of global position system can be arranged in nacelle top
Anemorumbometer support frame on (as shown in C point in figure), i.e., by global position system can get C point (the first predetermined monitoring point)
Real time position.
In the case, initial bit of the tower top center under pylon internal stress free state can be determined in the following manner
It sets: when operating condition is in small wind state, windless condition or wind power generating set and is in standby, controlling wind power generating set
Cabin yaws pre- fixing turn (preferably, pre- fixing turn can be two circles or two circles or more, and such as 5 circles or 10 are enclosed).At this point, first is predetermined
The real time position of monitoring point will circle (real time position of the actually first predetermined monitoring point around tower top center O point
Motion track is the very small ellipse of ellipticity), the motion track of the real time position of the first predetermined monitoring point is obtained by fitting
The center of circle will be fitted initial position of the center of circle of the motion track obtained as tower top center under pylon internal stress free state.
As an example, the midpoint B point of anemorumbometer support frame can be chosen as the second predetermined monitoring point, B point is with O at this time
Point is the center of circle, with | OC | be the mistake C point of the circle of radius be not diameter string midpoint.It is being installed global position system
The distance between after receiver, tape measure can be used and directly measure | CB |, it is denoted as L1.| AB | it is anemorumbometer support frame center
The distance between point and tower top center can be obtained based on design drawing, be denoted as L0。
Here, the initial position O point at tower top center obtained based on fitting, can be calculated | OC | distance, be denoted as R,
Thus anemorumbometer support frame central point can be calculated by following formula at a distance from the initial position O point at tower top center | OB
|, it is denoted as L2:
At this point, the length of OA can be calculated by following formula,
Above-mentioned | OA | it is to be in small wind state, windless condition or wind power generating set in operating condition to be in the standby state
The offset (that is, vibration displacement of the initial position at the positional shift tower top center at tower top center) at tower top center.
When wind power generating set is in normal power generation state (operating status), the vibration offset at tower top center increases,
Assuming that tower top center from A point is offset to A1 point at this time, the first predetermined monitoring point is offset to C1 point, the second predetermined monitoring point from C point
B1 point is offset to from B point.
In the angle of the real time position and basic course angle that obtain the first predetermined monitoring point C1 by global position system
Be worth after (angle [alpha] as illustrated in the drawing), can again based between the first predetermined predetermined monitoring point B1 of monitoring point C1 and second away from
From | C1B1 | (| C1B1 |=| CB |) determine the real time position of the second predetermined monitoring point B1.And then based on the second predetermined prison
The real time position of measuring point B1, from the tower top center point position A1 to the line direction of the second position predetermined monitoring point B1 with
Between the angle (- 90 ° of angle [alpha] as illustrated in the drawing) of direct north and the second predetermined monitoring point B1 and tower top center A1 point
Distance | A1B1 | (| A1B1 |=| AB |) determine the real time position of tower top center A1 point.
It should be understood that, ability merely illustrative to the selection of the first predetermined monitoring point and the second predetermined monitoring point shown in Fig. 3
Field technique personnel can also choose other o'clocks in nacelle top as the first predetermined monitoring point and the second predetermined monitoring point.
The equipment that Fig. 4 shows the vibration displacement of the tower top of determining wind power generating set according to an exemplary embodiment of the present invention
Block diagram.
As shown in figure 4, the vibration displacement of the tower top of determining wind power generating set according to an exemplary embodiment of the present invention
Equipment includes that position data obtains module 10, position data determining module 20, tower top center determining module 30 and vibration position
Move determining module 40.
Particularly, position data obtains the first predetermined monitoring point that module 10 obtains nacelle top from global position system
Real time position.
Here, it should be appreciated that tower top can refer to the nacelle top of wind power generating set in exemplary embodiments of the present invention, and first
Predetermined monitoring point can be any point in the nacelle top of wind power generating set.As an example, where the first predetermined monitoring point
It can be the position of the receiver of arrangement global position system at position.Preferably, the first predetermined monitoring point position and tower bottom
The distance between it is remoter, the vibration displacement at tower top center determined by the equipment of exemplary embodiment is more quasi- through the invention
Really.
Position data determining module 20 determines that the second of nacelle top makes a reservation for based on the real time position of the first predetermined monitoring point
The real time position of monitoring point.
Preferably, position data determining module 20 can be based on the real time position and global position system of the first predetermined monitoring point
Basic course angle determine the real time position of the second predetermined monitoring point.Position data determining module is introduced referring to Fig. 5
20 determine the process of the real time position of the second predetermined monitoring point.
Fig. 5 shows the block diagram of position data determining module according to an exemplary embodiment of the present invention.
As shown in figure 5, position data determining module 20 according to an exemplary embodiment of the present invention may include that course angle obtains
Submodule 201 and position determination submodule 202.
Particularly, course angle acquisition submodule 201 obtains the basis of global position system from global position system in real time
The angle value of course angle.
Here, the second predetermined monitoring point can in the nacelle top of wind power generating set in addition to the first predetermined monitoring point
Any point, it is preferable that the second predetermined monitoring point can for using tower top center as the center of circle, with the first predetermined monitoring point position
The distance between tower top center is that any of the first predetermined monitoring point that pass through of the circle of radius is not predetermined on the string of diameter
Point at position.As an example, the second predetermined monitoring point can be the midpoint of above-mentioned string.The basic course angle of global position system
Angle value can be indicated from the first predetermined monitoring point position to the line direction of the second predetermined monitoring point position and due north
The angle in direction.
First predetermined monitoring point real-time position of the position determination submodule 202 based on acquisition, global position system base
The angle value of plinth course angle and the distance between the first predetermined monitoring point and the second predetermined monitoring point determine the second predetermined monitoring
The real time position of point.
Here, in place when selecting the first predetermined monitoring point position and the second predetermined monitoring point in nacelle top
After setting, the distance between two o'clock can be directly obtained by measuring, be measured for example, the measuring tools such as tape measure can be used.
Return to Fig. 4, real time position of the tower top center determining module 30 according to the second predetermined monitoring point, satellite positioning system
The angle value of the basic course angle of system and the distance between the second predetermined monitoring point and tower top center determine the reality at tower top center
When position.
As an example, in exemplary embodiments of the present invention, it can be by tower top flange (for connecting the tower top flange of cabin)
The position of central point be determined as tower top center position.
Preferably, it determines using the angle value of the basic course angle of global position system from tower top center position
To the line direction of the second predetermined monitoring point position and the angle of direct north, thus tower top center determining module 30
It is true according to the real time position of the second predetermined monitoring point, above-mentioned angle and the distance between the second predetermined monitoring point and tower top center
Determine the real time position at tower top center.
Vibration displacement determining module 40 is according to initial position of the tower top center under pylon internal stress free state and determines
The real time position at tower top center determines the vibration displacement at tower top center.For example, vibration displacement determining module 40 can be based on tower top
The base of the real time position at center, the initial position at tower top center and the global position system obtained in real time from global position system
The angle value of plinth course angle determines tower top center in the vibration displacement of the first predetermined direction and the vibration on the second predetermined direction
Displacement.It should be understood that all positions refer to the coordinate position under earth coordinates in exemplary embodiments of the present invention.
Preferably, the equipment of the vibration displacement of the tower top of determining wind power generating set according to an exemplary embodiment of the present invention
It can further include initial position determining module (not shown), be in small wind state, windless condition or wind-driven generator in operating condition
When group is in standby, control wind power generating set executes predetermined action, passes through the real-time of the first predetermined monitoring point of acquisition
The motion track of position determines initial position of the tower top center under pylon internal stress free state.
As an example, the predetermined action may include the pre- fixing turn of cabin yaw for controlling wind power generating set, at this point, just
Beginning position determination module can obtain the center of circle of the motion track of the real time position of the first predetermined monitoring point by fitting, and fitting is obtained
Initial position of the center of circle of the motion track obtained as tower top center.
Preferably, the equipment of the vibration displacement of the tower top of determining wind power generating set according to an exemplary embodiment of the present invention
It can further include load inverting module (not shown), determine the vibration displacement at tower top center in vibration displacement determining module 40
Later, for load inverting module in combination with the modal parameter of pylon, Simultaneous Inversion goes out pylon in the situation loaded in multiple sections.
An exemplary embodiment of the present invention also provides a kind of computing device.The computing device includes processor and storage
Device.Memory is for storing computer program.The computer program is executed by processor so that processor executes as described above
Determination wind power generating set tower top vibration displacement method computer program.
An exemplary embodiment of the present invention also provides a kind of computer-readable storage medium for being stored with computer program
Matter.The computer-readable recording medium storage has makes processor execute above-mentioned determining wind-driven generator when being executed by a processor
The computer program of the method for the vibration displacement of the tower top of group.The computer readable recording medium can be stored by computer system
The arbitrary data storage device of the data of reading.The example of computer readable recording medium includes: read-only memory, arbitrary access
Memory, CD-ROM, tape, floppy disk, optical data storage devices and carrier wave (such as pass through through wired or wireless transmission path mutual
The data of networking are transmitted).
Using the method and apparatus of the vibration displacement of the tower top of the determination wind power generating set of exemplary embodiment of the present,
The vibration displacement at the tower top center of wind power generating set can be accurately measured based on global position system.
In addition, using the tower top of the determination wind power generating set of exemplary embodiment of the present vibration displacement method and
Equipment enables the receiver of global position system to be arranged in any position on the tower top of wind power generating set, is not necessarily to
It is limited to the geometric center position for being only capable of being arranged in tower top flange.
In addition, using the tower top of the determination wind power generating set of exemplary embodiment of the present vibration displacement method and
Equipment, it is contemplated that tower top center by head self weight influenced and the precompile that generates so that the wind power generating set determined
The vibration displacement at tower top center is more accurate.
In addition, using the tower top of the determination wind power generating set of exemplary embodiment of the present vibration displacement method and
Equipment can preferably test the situation loaded of pylon, more accurately the service life of assessment towers, both can for design provide according to
According to, or fault pre-alarming provides foundation, improves the availability of wind power generating set, increases wind power generating set
Unit output, economic benefit are obvious.
Although being particularly shown and describing the present invention, those skilled in the art referring to its exemplary embodiment
It should be understood that in the case where not departing from the spirit and scope of the present invention defined by claim form can be carried out to it
With the various changes in details.
Claims (14)
1. a kind of method of the vibration displacement of the tower top of determining wind power generating set, which is characterized in that the described method includes:
The real time position of the first predetermined monitoring point of nacelle top is obtained by global position system；
Based on the described first predetermined monitoring point real time position determine nacelle top the second predetermined monitoring point real time position；
The real time position at tower top center is determined based on the real time position of the described second predetermined monitoring point；
It is determined according to initial position of the tower top center under pylon internal stress free state and the real time position at the tower top center determined
The vibration displacement at tower top center.
2. the method as described in claim 1, which is characterized in that determine based on the real time position of the described first predetermined monitoring point
The step of real time position of two predetermined monitoring points includes:
Obtain the angle value of the basic course angle of global position system in real time by global position system；
The real time position of the first predetermined monitoring point based on acquisition, the angle value of the basic course angle and the first predetermined monitoring
The distance between point and the second predetermined monitoring point determine the real time position of the second predetermined monitoring point.
3. method according to claim 2, which is characterized in that determine tower based on the real time position of the described second predetermined monitoring point
The step of real time position at top center includes:
According to the real time position of the described second predetermined monitoring point, the angle value of the basic course angle and the second predetermined monitoring point
The distance between tower top center determines the real time position at tower top center.
4. the method as described in claim 1, which is characterized in that initial position of the tower top center under pylon internal stress free state
It is determined in the following manner:
When operating condition is in small wind, windless condition or wind power generating set and is in standby, control wind power generating set is executed
Predetermined action determines the initial position at tower top center by the motion track of the real time position of the first predetermined monitoring point of acquisition.
5. method as claimed in claim 4, which is characterized in that the predetermined action includes controlling the cabin of wind power generating set
Pre- fixing turn is yawed,
Wherein, the center of circle of the motion track of the real time position of the first predetermined monitoring point, the shifting that fitting is obtained are obtained by fitting
Initial position of the center of circle of dynamic rail mark as tower top center.
6. the method as described in claim 1, which is characterized in that initial under pylon internal stress free state according to tower top center
The step of position and the real time position at tower top center determined determine the vibration displacement at tower top center include:
Obtain the angle value of the basic course angle of global position system in real time by global position system；
Tower top is determined based on the angle value of the real time position at tower top center, the initial position at tower top center and the basic course angle
Vibration displacement of the center on the first predetermined direction and the second predetermined direction.
7. a kind of equipment of the vibration displacement of the tower top of determining wind power generating set, which is characterized in that the equipment includes:
Position data obtains module, and the real time position of the first predetermined monitoring point of nacelle top is obtained from global position system；
Position data determining module determines the second predetermined prison of nacelle top based on the real time position of the described first predetermined monitoring point
The real time position of measuring point；
Tower top center determining module determines the real-time position at tower top center based on the real time position of the described second predetermined monitoring point
It sets；
Vibration displacement determining module, according to tower top center in the initial position under pylon internal stress free state and the tower top determined
The real time position of the heart determines the vibration displacement at tower top center.
8. equipment as claimed in claim 7, which is characterized in that position data determining module includes:
Course angle acquisition submodule obtains the angle value of the basic course angle of global position system from global position system in real time；
Position determination submodule, the angle value of the real time position of the first predetermined monitoring point based on acquisition, the basic course angle
And first the distance between predetermined monitoring point and the second predetermined monitoring point determine the real time position of the second predetermined monitoring point.
9. equipment as claimed in claim 8, which is characterized in that tower top center determining module is according to the described second predetermined prison
The real time position of measuring point, the angle value of the basic course angle and the distance between the second predetermined monitoring point and tower top center are true
Determine the real time position at tower top center.
10. equipment as claimed in claim 7, which is characterized in that the equipment further includes initial position determining module, in operating condition
When being in standby in small wind, windless condition or wind power generating set, control wind power generating set executes predetermined action, leads to
The motion track for the real time position for crossing the first predetermined monitoring point obtained determines tower top center under pylon internal stress free state
Initial position.
11. equipment as claimed in claim 10, which is characterized in that the predetermined action includes the machine for controlling wind power generating set
Cabin yaws pre- fixing turn,
Wherein, initial position determining module obtains the circle of the motion track of the real time position of the first predetermined monitoring point by fitting
The heart, the center of circle for the motion track that fitting is obtained is as the initial position at tower top center.
12. equipment as claimed in claim 7, which is characterized in that vibration displacement determining module obtains in real time from global position system
Take the angle value of the basic course angle of global position system, and the initial bit of the real time position based on tower top center, tower top center
It sets and determines vibration position of the tower top center on the first predetermined direction and the second predetermined direction with the angle value of the basic course angle
It moves.
13. a kind of computer readable storage medium for being stored with computer program, when the computer program is held by processor
The side of the vibration displacement of the tower top of the determination wind power generating set as described in any one in claim 1-6 is realized when row
Method.
14. a kind of computing device, which is characterized in that the computing device includes:
Processor；
Memory is stored with computer program, when the computer program is executed by processor, realizes such as claim 1-6
In any one described in determination wind power generating set tower top vibration displacement method.
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