CN107044389A - A kind of wind set tower drum tilt measuring method and system - Google Patents
A kind of wind set tower drum tilt measuring method and system Download PDFInfo
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- CN107044389A CN107044389A CN201710283198.2A CN201710283198A CN107044389A CN 107044389 A CN107044389 A CN 107044389A CN 201710283198 A CN201710283198 A CN 201710283198A CN 107044389 A CN107044389 A CN 107044389A
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Abstract
The invention belongs to a kind of wind set tower drum tilt measuring method of Wind turbines tower, stress at tower bottom at least one and/or displacement are detected, and detected value compares with setting value, judge that tower is tilted when detected value exceeds setting range, and send prompt messages.By being detected to the change of tower bottom stress and/or tower displacement, accurately to judge that tower vibration displacement whether in the range of reasonable set, is realized and accurately judges tower skew, and then reach to be prevented effectively from the purpose that tower topples over situation generation；Meanwhile, it is corresponding by being carried out respectively with tower displacement to tower stress range, to improve judgment accuracy, the situation that blower fan rationally vibrates effectively is screened out, erroneous judgement situation odds is reduced.The invention further relates to a kind of wind set tower drum inclinometric system of the above-mentioned measuring method of application.
Description
Technical field
The invention belongs to the technical field of Wind turbines tower, more particularly to a kind of Wind turbines tower inclination measurement system
System, further relates to a kind of Wind turbines tower tilt measuring method.
Background technology
The tower of Wind turbines is the load-supporting part in wind power generating set, main in wind power generating set to play support work
With while absorbing unit vibrations.Tower subjects the load complicated and changeable such as thrust, moment of flexure and torque load so that wind-force is sent out
In group of motors running, what tower occurred certain amplitude the deformation such as waves and distorts；In addition, tower also suffers from material change
The influence of the factors such as shape, parts failure and settlement of foundation, produces inclination.The excessive inclination and distortion of tower can influence wind-force to send out
The normal operation of group of motors, serious can also produce security incident, accordingly, it would be desirable to be supervised in real time to the inclination and distortion of tower
Survey.
At present, it is typically that multiple GPSs are installed in tower when carrying out inclination and distortion measurement to tower, according to
GPS measurement data obtains the inclination and distortion curve of tower to draw, and this mode cost is higher, and when calculating tower deformation,
The characteristics of not considering the nonlinear deformation of tower, is normally based on single inclination angle and rigid deformation to calculate and obtains the deformation of tower
Amount, cause to calculate obtain tower deformation curve it is inaccurate.Passed in addition, also having in the prior art by setting to tilt in tower
The mode of sensor, to detect the inclination and distortion of tower, its deformation curve for measuring obtained tower is still linear deformation curves,
Rather than the true strain curve of tower, cause measurement result inaccurate.
In view of this, it is special to propose the application.
The content of the invention
It is an object of the invention to provide a kind of structure composition is simple, lower cost, and can authentic and valid ground it is anti-
Should
The Wind turbines tower tilt measuring method and system of the actual tilt situation of Wind turbines tower, in order to technology
Personnel grasp the actual motion state of tower in time, it is ensured that running of wind generating set is reliable and secure, it is to avoid property and personal damage.
In order to solve the deficiencies in the prior art, reach described beneficial effect, the technical solution adopted by the present invention it is basic
Mentality of designing is as follows：
A kind of Wind turbines tower tilt measuring method, is examined to the stress at tower bottom at least one and/or displacement
Survey, and detected value is compared with setting value, judge that tower is tilted when detected value exceeds setting range, and send alarm
Information.
Further, following steps are specifically included,
Step 1, the stress value received at tower bottom at least one is detected in real time；
Step 2, when stress mornitoring value change amplitude △ A exceed stress variation setting range when, perform step 3；Otherwise
Tower does not shift, Wind turbines normal work；
Step 3, to being measured at tower bottom at least one with the distance between corresponding object of reference；
Step 4, when measurement distance value exceed distance setting reference range when, judge that tower shifts, Wind turbines
It is stopped, and the inclined alarm signal of blower fan is sent to wind field control server residing for Wind turbines；Otherwise tower is not
Shift, Wind turbines normal work.
Further, the change amplitude △ A=of stress mornitoring value | A1-A2 |；Described A1 and A2 is strain gauge every
Timing node is to the real-time detected value at the same position of tower bottom before and after individual interval setting time section t；
The stress variation setting range is the setting value manually setThe setting valueBeyond normal fan vibration
Shi Yingli produces the amplitude of change；
WhenWhen, judge that tower does not shift；WhenWhen, judge that tower shifts.
Further, range sensor is set at correspondence object of reference, with corresponding with tower bottom to be checked to correspondence object of reference
Distance between survey enters row distance detection, draws detecting distance L；The distance sets term of reference and one set as what is manually set
Determine number rangeExtremely
WhenWhen, judge that tower does not shift；WhenOrWhen, judge that tower shifts.
Further, stress mornitoring is carried out respectively and/or apart from detection to multiple positions of blower fan tower barrel bottom, in any inspection
When measured value exceeds setting range, judge that blower fan tower barrel shifts, and send alarm.
Further, when being detected to blower fan tower barrel skew, to the detection time node of the diverse location of blower fan tower barrel
It is interlaced to set；
Comprise the following steps that：
Step 11, in first time period t1, real-time stress mornitoring is carried out to the first position of blower fan tower barrel, to obtain tower
The stress mornitoring value of cylinder first position；
Step 12, in second time period t2, real-time stress mornitoring is carried out to the second place of blower fan tower barrel, to obtain tower
The stress mornitoring value of the cylinder second place.
Further, when performing step 11, when the stress mornitoring value of blower fan tower barrel first position is set beyond stress variation
During scope, the first position and/or the second place of blower fan tower barrel are measured respectively in the distance between correspondence object of reference, when
When any measured value exceeds distance setting term of reference, judge that blower fan tower barrel is burdened with skew.
Further, the connecting line between first position and the second place and blower fan tower barrel axis is arranged in a mutually vertical manner.
Further, following steps are specifically included,
Step 01, to being measured in real time with the distance between corresponding object of reference at tower bottom at least one
Step 02, when measurement distance value exceed distance setting reference range when, perform step 3；Otherwise tower does not occur
Skew, Wind turbines normal work；
Step 03, to being detected in real time with suffered stress value at tower bottom at least one；
Step 04, when stress mornitoring value change amplitude △ A exceed stress variation setting range when, judge tower occur partially
Move, Wind turbines are stopped, and the inclined alarm signal of blower fan is sent to wind field control server residing for Wind turbines；
Otherwise tower does not shift, Wind turbines normal work.
By being detected to the change of tower bottom stress and/or tower displacement, accurately to judge that tower vibration displacement is
It is no to be in the range of reasonable set, realize and tower skew is accurately judged, and then reach that being prevented effectively from tower topples over situation
The purpose of generation；Meanwhile, it is corresponding by being carried out respectively with tower displacement to tower stress range, to improve accuracy of judgement
Property, the situation that blower fan rationally vibrates effectively is screened out, erroneous judgement situation odds is reduced.
Another object of the present invention is to provide a kind of Wind turbines tower inclination measurement system of the above-mentioned measuring method of application
System, tower is provided with multiple connecting cylinders, and tower is fixed by installation pedestal with ground, is fixedly connected close to tower with installation pedestal
Position is provided with stress detection device, and is electrically connected with stress detection device or signal be connected provided with control device, control device
Judge module is analyzed provided with stress data.
Preferably, position is being fixedly connected with installation pedestal provided with displacement detector, displacement detector close to tower
It is connected with control device electrical connection or signal, control device analyzes judge module provided with corresponding displacement data.
Preferably, it is provided with a stress detection device, and stress detection device and fan leaf are in the installation of tower
It is in the same side.
Preferably, multiple stress detection devices are provided with, each detection means is evenly distributed on tower and consolidated with installation pedestal
Determine the surrounding of connecting portion.
Preferably, displacement detector is set to one and displacement detector with fan leaf in the installation place of tower
In the same side.
Preferably, displacement detector is provided with multiple, and displacement detector is evenly distributed on multiple detection means
Tower is fixedly connected with the surrounding at position with installation pedestal.
Preferably, at least one leg is provided between tower and installation pedestal, one end of leg is arranged on tower bottom,
The other end is arranged in installation pedestal, triangle between leg and tower and installation pedestal.
Preferably, the bottom of tower is provided with the extension of multiple triangles, extension and installation pedestal and is equipped with installation
Hole, the middle part of installation pedestal is provided with groove, and tower is placed in groove and is connected by screw mounting hole and fixes.
Preferably, control device is provided with the stress data analysis situation regulation fan leaf transmitted according to stress detection device
The module of open and close.
Preferably, the end that two neighboring connecting cylinder is in contact is respectively equipped with flange, is bolted flange and incite somebody to action both
It is fixed as one.
Compared to the prior art Wind turbines tower inclinometric system of the present invention has following beneficial effect：
The structure composition of the system is simple, lower cost, and can timely and effectively react Wind turbines tower
Actual tilt situation, if inclined degree is larger, operation there is potential safety hazard, can also automatically control Wind turbines stop fortune
OK, it is to avoid fan leaf operation increase inclined degree；And by the dual guarantee of stress detection device and displacement detector,
Vibrations during running of wind generating set are avoided to interfere testing result, it is ensured that detection is more accurate, sensitive, is easy to technical staff
The actual motion state of tower is grasped in time, it is ensured that running of wind generating set is reliable and secure, it is to avoid property and personal damage.
Present disclosure is further described with specific embodiment below in conjunction with the accompanying drawings.
Brief description of the drawings
Accompanying drawing is as the part of the present invention, and for providing further understanding of the invention, of the invention is schematic
Embodiment and its illustrate to be used to explain the present invention, but do not constitute inappropriate limitation of the present invention.Obviously, drawings in the following description
Only some embodiments, to those skilled in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.In the accompanying drawings：
Fig. 1 is the structural representation of the Wind turbines tower inclinometric system described in the embodiment of the present invention one；
Fig. 2 is the structural representation of the Wind turbines tower inclinometric system described in the embodiment of the present invention two；
Fig. 3 is the distribution schematic diagram of the stress detection device of the Wind turbines tower inclinometric system described in Fig. 2；
Fig. 4 is the FB(flow block) of Wind turbines tower tilt measuring method in the embodiment of the present invention；
Fig. 5 is the FB(flow block) of Wind turbines tower tilt measuring method in another embodiment of the present invention.
Marked in figure：
1st, tower, 11, connecting cylinder, 2, installation pedestal, 3, stress detection device, 4, control device, 5, displacement detector,
6th, fan leaf.
It should be noted that these accompanying drawings and word description are not intended as the design model for limiting the present invention in any way
Enclose, but be that those skilled in the art illustrate idea of the invention by reference to specific embodiment.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in embodiment is clearly and completely described, following examples be used for illustrate the present invention, but
It is not limited to the scope of the present invention.
It is term " on ", " under ", "front", "rear", "left", "right", " perpendicular in the description of the invention, it is necessary to explanation
Directly ", the orientation or position relationship of the instruction such as " interior ", " outer " are based on orientation shown in the drawings or position relationship, merely to just
In the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment one
A kind of Wind turbines tower inclinometric system, tower 1 is provided with multiple connecting cylinders 11, and tower 1 passes through installation pedestal 2
Fixed with ground, position is being fixedly connected with installation pedestal 2 provided with stress detection device 3 close to tower 1, and be provided with and stress inspection
The control device 4 that device 3 is electrically connected or signal is connected is surveyed, control device 4 analyzes judge module provided with stress data.
Position is being fixedly connected with installation pedestal 2 provided with displacement detector 5, displacement detector 5 and control close to tower 1
Device 4 processed is electrically connected or signal connection, and control device 4 analyzes judge module provided with corresponding displacement data.
Be provided with a stress detection device 3, and stress detection device 3 with fan leaf in the installation place of tower same
Side.
Displacement detector 5 is set to one and displacement detector 5 exists with fan leaf 6 in the installation place of tower 1
The same side.
At least one leg is provided between tower 1 and installation pedestal 2, one end of leg is arranged on the bottom of tower 1, another
End is arranged in installation pedestal 2, triangle between leg and tower 1 and installation pedestal 2.
The bottom of tower 1 is provided with the extension of multiple triangles, extension and installation pedestal 2 and is equipped with mounting hole, pacifies
The middle part for filling pedestal 2 is provided with groove, and tower 1 is placed in groove and is connected by screw mounting hole and fixes.
Control device 4 be provided with according to stress detection device 3 transmit stress data analysis situation regulation fan leaf 6 open,
The module of pass.
The end that two neighboring connecting cylinder 11 is in contact is respectively equipped with flange, is bolted flange and both are fixed into one
Body.
Compared to the prior art Wind turbines tower inclinometric system of the present invention has following beneficial effect：
The structure composition of the system is simple, lower cost, and can timely and effectively react Wind turbines tower
Actual tilt situation, if inclined degree is larger, operation there is potential safety hazard, can also automatically control Wind turbines stop fortune
OK, it is to avoid fan leaf operation increase inclined degree；And by the dual guarantee of stress detection device and displacement detector,
Vibrations during running of wind generating set are avoided to interfere testing result, it is ensured that detection is more accurate, sensitive, is easy to technical staff
The actual motion state of tower is grasped in time, it is ensured that running of wind generating set is reliable and secure, it is to avoid property and personal damage.
Embodiment two
The present embodiment and the difference of embodiment one are：
1st, multiple stress detection devices 3 are provided with, each detection means 3 is evenly distributed on tower 1 and fixed with installation pedestal 2
The surrounding of connecting portion.
2nd, displacement detector 5 is provided with multiple, and displacement detector 5 is evenly distributed on tower with multiple detection means 3
Cylinder 1 is fixedly connected with the surrounding at position with installation pedestal 2.
A kind of Wind turbines tower inclinometric system, tower 1 is provided with multiple connecting cylinders 11, and tower 1 passes through installation pedestal 2
Fixed with ground, position is being fixedly connected with installation pedestal 2 provided with stress detection device 3 close to tower 1, and be provided with and stress inspection
The control device 4 that device 3 is electrically connected or signal is connected is surveyed, control device 4 analyzes judge module provided with stress data.
Position is being fixedly connected with installation pedestal 2 provided with displacement detector 5, displacement detector 5 and control close to tower 1
Device 4 processed is electrically connected or signal connection, and control device 4 analyzes judge module provided with corresponding displacement data.
Multiple stress detection devices 3 are provided with, each detection means 3, which is evenly distributed on tower 1 and fixed with installation pedestal 2, to be connected
The surrounding of socket part position, four can be specifically configured in the present embodiment.
Fig. 3 is distribution situation schematic diagram of the stress detection device 3 described in the present embodiment on the periphery of tower 1, from tower 1
Top looks down.
Displacement detector 5 is provided with multiple, and displacement detector 5 is evenly distributed on tower 1 with multiple detection means 3
The surrounding at position is fixedly connected with installation pedestal 2.
At least one leg is provided between tower 1 and installation pedestal 2, one end of leg is arranged on the bottom of tower 1, another
End is arranged in installation pedestal 2, triangle between leg and tower 1 and installation pedestal 2.
The bottom of tower 1 is provided with the extension of multiple triangles, extension and installation pedestal 2 and is equipped with mounting hole, pacifies
The middle part for filling pedestal 2 is provided with groove, and tower 1 is placed in groove and is connected by screw mounting hole and fixes.
Control device 4 be provided with according to stress detection device 3 transmit stress data analysis situation regulation fan leaf 6 open,
The module of pass.
The end that two neighboring connecting cylinder 11 is in contact is respectively equipped with flange, is bolted flange and both are fixed into one
Body.
Compared to the prior art Wind turbines tower inclinometric system of the present invention has following beneficial effect：
The structure composition of the system is simple, lower cost, and can timely and effectively react Wind turbines tower
Actual tilt situation, if inclined degree is larger, operation there is potential safety hazard, can also automatically control Wind turbines stop fortune
OK, it is to avoid fan leaf operation increase inclined degree；And by the dual guarantee of stress detection device and displacement detector,
Vibrations during running of wind generating set are avoided to interfere testing result, it is ensured that detection is more accurate, sensitive, is easy to technical staff
The actual motion state of tower is grasped in time, it is ensured that running of wind generating set is reliable and secure, it is to avoid property and personal damage.
Embodiment three
The wind based on Wind turbines tower inclinometric system described in above-described embodiment one or two is described in the present embodiment
Group of motors tower tilt measuring method, is detected to the stress at tower bottom at least one and/or displacement, and by detected value with
Setting value compares, and judges that tower is tilted when detected value exceeds setting range, and send prompt messages.
As shown in figure 4, in the present embodiment, Wind turbines tower tilt measuring method specifically includes following steps,
Step 1, the stress value received at tower bottom at least one is detected in real time；
Step 2, when stress mornitoring value change amplitude △ A exceed stress variation setting range when, perform step 3；Otherwise
Tower does not shift, Wind turbines normal work；
Step 3, to being measured at tower bottom at least one with the distance between corresponding object of reference；
Step 4, when measurement distance value L exceed distance setting reference range when, judge that tower shifts, Wind turbines
It is stopped, and the inclined alarm signal of blower fan is sent to wind field control server residing for Wind turbines；Otherwise tower is not
Shift, Wind turbines normal work.
In the present embodiment, the change amplitude △ A=of stress mornitoring value | A1-A2 |；Described A1 and A2 is strain gauge
Timing node is to the real-time detected value at the same position of tower bottom before and after each interval setting time section t；It is described
Stress variation setting range is the setting value manually setThe setting valueStress produces change during beyond normal fan vibration
The amplitude of change；WhenWhen, judge that tower does not shift；WhenWhen, judge that tower shifts.Meanwhile, this reality
Apply in example, different setting values can be correspondingly arranged respectively according to different operating modes, Different climate, different unitsTo improve control
The probability of the judgement accuracy of method, further reduction erroneous judgement.
In the present embodiment, range sensor is set at correspondence object of reference, with corresponding with tower bottom to correspondence object of reference
Distance between to be detected enters row distance detection, draws detecting distance L；The distance sets term of reference and manually set
One setting number rangeExtremelyWhenWhen, judge that tower does not shift；WhenOrWhen, judge tower
Cylinder shifts.Meanwhile, in the present embodiment, difference can be correspondingly arranged respectively according to different operating modes, Different climate, different units
Setting rangeExtremelyTo improve the judgement accuracy of control method, the probability that further reduction is judged by accident.
By being detected to the change of tower bottom stress and tower displacement, accurately to judge whether tower vibration displacement is located
In the range of reasonable set, realize and tower skew is accurately judged, and then reach that being prevented effectively from tower topples over situation
Purpose；Meanwhile, it is corresponding by being carried out respectively with tower displacement to tower stress range, to improve judgment accuracy,
The situation that blower fan rationally vibrates effectively is screened out, erroneous judgement situation odds is reduced.
Example IV
The present embodiment and the difference of embodiment three are：Wind turbines tower tilt measuring method, according to tower of wind generating set
Cylinder distance change, in conjunction with stress variation, with the judgement to Wind turbines tower inclination conditions.
As shown in figure 5, in the present embodiment, Wind turbines tower tilt measuring method specifically includes following steps,
Step 01, to being measured in real time with the distance between corresponding object of reference at tower bottom at least one
Step 02, when measurement distance value exceed distance setting reference range when, perform step 3；Otherwise tower does not occur
Skew, Wind turbines normal work；
Step 03, to being detected in real time with suffered stress value at tower bottom at least one；
Step 04, when stress mornitoring value change amplitude △ A exceed stress variation setting range when, judge tower occur partially
Move, Wind turbines are stopped, and the inclined alarm signal of blower fan is sent to wind field control server residing for Wind turbines；
Otherwise tower does not shift, Wind turbines normal work.
In the present embodiment, by detecting object based on tower distance change, and it is combined with stress variation, to avoid tower
The occurrence of cylinder tilts erroneous judgement, it is same can be achieved to tilt Wind turbines tower accurately judge, effectively reduction erroneous judgement it is several
The purpose of rate.
Embodiment five
The present embodiment and the difference of embodiment three and four are：Stress is carried out respectively to multiple positions of blower fan tower barrel bottom
Detect and/or apart from detection, when any detected value exceeds setting range, judge that blower fan tower barrel shifts, and send report
Alert prompting.
In the present embodiment, when being detected to blower fan tower barrel skew, to the detection time of the diverse location of blower fan tower barrel
Node is interlaced to be set；
Comprise the following steps that：
Step 11, in first time period t1, real-time stress mornitoring is carried out to the first position of blower fan tower barrel, to obtain tower
The stress mornitoring value of cylinder first position；
Step 12, in second time period t2, real-time stress mornitoring is carried out to the second place of blower fan tower barrel, to obtain tower
The stress mornitoring value of the cylinder second place.
In the present embodiment, when performing step 11, when the stress mornitoring value of blower fan tower barrel first position exceeds stress variation
During setting range, the first position and/or the second place of blower fan tower barrel are surveyed respectively in the distance between correspondence object of reference
Amount, when any measured value exceeds distance setting term of reference, judges that blower fan tower barrel is burdened with skew.
As shown in figure 3, in the present embodiment, the connecting line between first position and the second place and blower fan tower barrel axis is mutual
It is vertically arranged, to be measured respectively to the position at out of phase node, to cover the different corresponding surfaces of blower fan tower barrel,
Improve accuracy of detection.
Certainly, can also be in step 11 and step 12 respectively to blower fan tower barrel first position and second in the present embodiment
Position carries out real-time range amount, and is combined stress mornitoring value according to measurement distance value, to further determine that accurate tower is inclined
Oblique judged result.
Described above is only presently preferred embodiments of the present invention, not makees any formal limitation to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompting make it is a little change or be modified to
The equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit pair according to the present invention
Any simple modification, equivalent variations and modification that above example is made, in the range of still falling within the present invention program.
Claims (10)
1. a kind of Wind turbines tower tilt measuring method, its feature is being：To the stress at tower bottom at least one and/or
Displacement is detected, and detected value is compared with setting value, judges that tower is tilted when detected value exceeds setting range, concurrently
Go out prompt messages.
2. a kind of Wind turbines tower tilt measuring method according to claim 1, it is characterised in that specifically include as follows
Step,
Step 1, the stress value received at tower bottom at least one is detected in real time；
Step 2, when stress mornitoring value change amplitude △ A exceed stress variation setting range when, perform step 3；Otherwise tower
Do not shift, Wind turbines normal work；
Step 3, to being measured at tower bottom at least one with the distance between corresponding object of reference；
Step 4, when measurement distance value exceed distance setting reference range when, judge that tower shifts, Wind turbines stopping
Work, and send the inclined alarm signal of blower fan to wind field control server residing for Wind turbines；Otherwise tower does not occur
Skew, Wind turbines normal work.
3. a kind of Wind turbines tower tilt measuring method according to claim 2, it is characterised in that stress mornitoring value
Change amplitude △ A=| A1-A2 |；Described A1 and A2 is strain gauge before and after each interval setting time section t
Timing node is to the real-time detected value at the same position of tower bottom；
The stress variation setting range is the setting value manually setThe setting valueShould during beyond normal fan vibration
Power produces the amplitude of change；
WhenWhen, judge that tower does not shift；WhenWhen, judge that tower shifts.
4. a kind of Wind turbines tower tilt measuring method according to claim 2, it is characterised in that in correspondence object of reference
Place set range sensor, with to correspondence object of reference it is corresponding with tower bottom it is to be detected between distance enter row distance detect,
Draw detecting distance L；It is described distance set term of reference as manually set one set number rangeExtremely
WhenWhen, judge that tower does not shift；WhenOrWhen, judge that tower shifts.
5. according to a kind of any described Wind turbines tower tilt measuring method of Claims 1-4, it is characterised in that to wind
Multiple positions of machine tower bottom carry out stress mornitoring and/or apart from detection respectively, when any detected value exceeds setting range,
Judge that blower fan tower barrel shifts, and send alarm.
6. a kind of Wind turbines tower tilt measuring method according to claim 5, it is characterised in that to blower fan tower barrel
When skew is detected, the interlaced setting of detection time node to the diverse location of blower fan tower barrel；
Comprise the following steps that：
Step 11, in first time period t1, real-time stress mornitoring is carried out to the first position of blower fan tower barrel, to obtain tower the
Stress mornitoring value at one position；
Step 12, in second time period t2, real-time stress mornitoring is carried out to the second place of blower fan tower barrel, to obtain tower the
Stress mornitoring value at two positions.
7. a kind of Wind turbines tower tilt measuring method according to claim 6, it is characterised in that performing step 11
When, when the stress mornitoring value of blower fan tower barrel first position exceeds stress variation setting range, to the first position of blower fan tower barrel
And/or the second place is measured respectively in the distance between correspondence object of reference, when any measured value exceeds distance setting reference
During scope, judge that blower fan tower barrel is burdened with skew.
8. a kind of Wind turbines tower tilt measuring method according to claim 6 or 7, it is characterised in that first position
Connecting line between the second place and blower fan tower barrel axis is arranged in a mutually vertical manner.
9. a kind of Wind turbines tower tilt measuring method according to claim 1, it is characterised in that specifically include as follows
Step,
Step 01, to being measured in real time with the distance between corresponding object of reference at tower bottom at least one
Step 02, when measurement distance value exceed distance setting reference range when, perform step 3；Otherwise tower does not shift,
Wind turbines normal work；
Step 03, to being detected in real time with suffered stress value at tower bottom at least one；
Step 04, when stress mornitoring value change amplitude △ A exceed stress variation setting range when, judge that tower shifts,
Wind turbines are stopped, and send the inclined alarm signal of blower fan to wind field control server residing for Wind turbines；It is no
Then tower does not shift, Wind turbines normal work.
10. a kind of Wind turbines tower inclinometric system of any measuring method of application the claims 1 to 9, its
It is characterised by, tower (1) is made up of multiple connecting cylinders (11), tower (1) is fixed by installation pedestal (2) with ground, close
Tower (1) is fixedly connected with position with installation pedestal (2) provided with stress detection device (3), and provided with electric with stress detection device (3)
Connection or the control device (4) of signal connection, control device (4) analyze judge module provided with stress data.
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| CN108534756A (en) * | 2018-04-14 | 2018-09-14 | 杭州职业技术学院 | Wind turbines tower inclination checking method |
| CN109887244A (en) * | 2019-04-17 | 2019-06-14 | 天仁民防建筑工程设计有限公司 | A kind of people's air defense gantry crane horn shape state detection system and method based on close to switch |
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| CN110107462A (en) * | 2019-06-06 | 2019-08-09 | 三一重能有限公司 | A kind of tower monitoring system, method and wind power generating set |
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| CN113799105A (en) * | 2021-11-17 | 2021-12-17 | 季华实验室 | Overturn preventing system of composite robot |
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