CN106248049A - Wind turbines tower foundation uneven settlement off-line checking method and on-line monitoring method - Google Patents
Wind turbines tower foundation uneven settlement off-line checking method and on-line monitoring method Download PDFInfo
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- CN106248049A CN106248049A CN201610795831.1A CN201610795831A CN106248049A CN 106248049 A CN106248049 A CN 106248049A CN 201610795831 A CN201610795831 A CN 201610795831A CN 106248049 A CN106248049 A CN 106248049A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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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 kind of Wind turbines tower foundation uneven settlement off-line checking method, comprise the following steps: 1) the most clockwise to circumferential equally distributed bolt numbering on tower drum flange face；2) angle a1 formed by the line at first bolt and the line at tower door center and direct north and tower center is measured；3) angle a2 formed by the line at tower center and the line at tower door center and direct north and tower center is measured；4) angle a formed by the line at first bolt and the line at tower center and direct north and tower center is calculated；5) utilize beam type inclination sensor that the flange face of bolt position is measured；6) according to step 5) method, the flange face of at least two difference bolt position is measured；7) tower maximum tilt angle Angle of synthesis and the tower of synthesis are calculated relative to positive north well azimuth Dir.The invention also discloses a kind of tower barrel base differential settlement on-line monitoring method.
Description
Technical field
The present invention relates to a kind of Wind turbines tower foundation uneven settlement off-line checking method and on-line monitoring method.
Background technology
The tower of Wind turbines is the load-supporting part in wind power generating set, acts primarily as support and make in wind power generating set
With, absorb unit vibrations simultaneously.Tower subjects thrust, the load that moment of flexure and torque load etc. are complicated and changeable so that wind-force is sent out
In group of motors running, tower there will be waving and the deformation such as distortion of certain amplitude；Become additionally, tower also suffers from material
Change, the impact of the factors such as parts inefficacy and settlement of foundation, run-off the straight.The excessive inclination and distortion of tower can affect wind-force and send out
Group of motors properly functioning, serious also can produce security incident, accordingly, it would be desirable to Wind turbines foundation settlement and tower safety
Detect in real time.
At present, foundation settlement detection uses the sedimentation on optical level periodic measurement basis, and wasting time and energy can not be real-time
Know foundation settlement information.Tower morphometry is typically to install multiple GPS in tower, measures according to GPS
Data draw the inclined configuration obtaining tower, and this mode cost is high, and tower is closed state, and gps signal receives tired
Difficult.
Summary of the invention
Present invention aims to above-mentioned deficiency and the defect of prior art, it is provided that a kind of Wind turbines tower basis
Differential settlement off-line checking method and on-line monitoring method, to solve the problems referred to above.
Technical problem solved by the invention can realize by the following technical solutions:
Wind turbines tower foundation uneven settlement off-line checking method, it is characterised in that comprise the following steps:
1) circumferential equally distributed bolt numbering on tower flange in the bottom face is given the most clockwise, it is assumed that have N number of bolt, i.e. spiral shell
Bolt numbering is respectively 1,2,3 N；
2) line measuring first bolt and tower door center presss from both sides formed by the line at direct north and tower center
Angle a1；
3) angle formed by the line at tower center and the line at tower door center and direct north and tower center is measured
a2；
4) angle formed by the line at first bolt and the line at tower center and direct north and tower center is calculated
A, a=2 × a1-a2；
5) utilize beam type inclination sensor that the flange face of bolt position is measured, it is assumed that the needs being drawn into
The numbered S of bolt corresponding to flange face measured, then on the flange face position of the bolt position numbered at this S, described beam
Angle formed by the line at the axis of formula inclination sensor and direct north and tower center is X, wherein X=360 × S ÷ N+a-
90 °, and it is Y that beam type inclination sensor records the angle with horizontal plane；
6) according to step 5) method, the flange face of at least two difference bolt position therein is measured,
Obtain at least two groups and be respectively (X about angle X and the data of angle Y, at least two group data1,Y1), (X2,
Y2)······；
7) calculate to tilt relative to positive north bottom the tower of maximum tilt angle Angle and synthesis bottom the tower of synthesis
Orientation Dir, by step 6) at least two group data (X1,Y1) and (X2,Y2) substitution formula below (1):
Sin (Y)=sin (Angle) × cos (X-Dir), (1)
Used wheat quart method plus general Global Optimization Method by above-mentioned formula (1), calculate bottom the tower of synthesis maximum
Optimal solution relative to positive north well azimuth Dir bottom the tower of angle of inclination Angle and synthesis.
In a preferred embodiment of the invention, described beam type inclination sensor is uniaxially beam type inclination sensor.
Wind turbines tower foundation uneven settlement on-line monitoring method, it is characterised in that include any of the above-described technical side
Wind turbines tower foundation uneven settlement off-line checking method described in case, uneven on described Wind turbines tower basis
The step 7 of sedimentation off-line checking method) after, further comprising the steps of:
8) tower bottom inside being provided with on-line monitoring sensor, described line monitoring sensor is according to step 7) middle acquisition
Synthesis tower bottom maximum tilt angle Angle and synthesis tower bottom optimum relative to positive north well azimuth Dir
Solution is calibrated and makes zero, and the dynamic data that the on-line monitoring sensor after zero is monitored is the dynamic of tower barrel base sedimentation
Data.
Owing to have employed technical scheme as above, the present invention uses sedimentation and the tower of beam type inclination sensor Fundamentals of Measurement
Safety, can accurately Fundamentals of Measurement sedimentation and the dynamic tilt state of tower in real time, take measures in time to safeguard.The present invention
Installation and debugging are convenient, and low cost.The dynamic tilt data of the tower that the present invention obtains, may recognize that tower through Algorithm Analysis
Structural damage, the problems such as flange bolt is loosening, and the location fix of generation problem can be positioned.The present invention is by synthesis inclination angle
Degree, the inclination of the real Reaction plane of energy, the safety analysis to tower makes great sense.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is an embodiment of the present invention top view when detection.
Fig. 2 is that the beam type inclination sensor of the present invention records the view that the angle with horizontal plane is Y.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, enter below
One step illustrates the present invention.
See shown in Fig. 1 and Fig. 2, Wind turbines tower foundation uneven settlement off-line checking method, comprise the following steps:
1) circumferential equally distributed bolt numbering on tower flange in the bottom face 100 is given the most clockwise, it is assumed that have N number of bolt,
I.e. bolt numbering is respectively 1,2,3 N；
2) first bolt and the line L1 and direct north L2 at tower door 110 center and the line of tower center O are measured
Formed angle a1；
3) measure tower center O to be become with the line of direct north and tower center with the line L3 at tower door 110 center
Angle a2；
4) calculate first bolt to be become with the line L1 of direct north and tower center O with the line L4 of tower center O
Angle a, a=2 × a1-a2；
5) utilize uniaxially beam type inclination sensor 200 that the flange face of bolt position is measured, it is assumed that to be taken out
The numbered S of bolt corresponding to flange face needing to measure got, then the flange face position of the bolt position numbered at this S
On, uniaxially angle formed by the axis L5 of beam type the inclination sensor 200 and line L2 of direct north and tower center O is X,
Wherein X=360 × S ÷ N+a-90 °, and uniaxially beam type inclination sensor 200 records the angle with horizontal plane is Y；
6) according to step 5) method, the flange face of at least two difference bolt position therein is measured,
Obtain at least two groups and be respectively (X about angle X and the data of angle Y, at least data1,Y1), (X2,Y2)······；
7) calculate to tilt relative to positive north bottom the tower of maximum tilt angle Angle and synthesis bottom the tower of synthesis
Orientation Dir, by step 6) at least two group data (X1,Y1) and (X2,Y2) substitution formula below (1):
Sin (Y)=sin (Angle) × cos (X-Dir), (1)
Used wheat quart method plus general Global Optimization Method by above-mentioned formula (1), calculate bottom the tower of synthesis maximum
Optimal solution relative to positive north well azimuth Dir bottom the tower of angle of inclination Angle and synthesis.
The Wind turbines tower foundation uneven settlement off-line checking method of the present invention combines what following examples was enumerated
Data obtain bottom tower the optimum bottom the tower of maximum tilt angle Angle and synthesis relative to positive north well azimuth Dir
Solve:
Embodiment 1
According to above-mentioned steps, it is thus achieved that four groups of data are respectively (0 ° ,-2.92 °), (90 °, 0.5 °), (180 °, 2.92 °),
(270 ° ,-0.5 °), relative to positive north inclination side bottom the tower of maximum tilt angle Angle and synthesis bottom available tower
The optimal solution of position Dir is respectively as follows: Angle=2.96 °, Dir=350 °.
Embodiment 2
According to above-mentioned steps, it is thus achieved that four groups of data are respectively (50 ° ,-1.48 °), (140 °, 2.72 °), (230 °,
1.48 °), (320 ° ,-2.72 °), relative to just bottom the tower of maximum tilt angle Angle and synthesis bottom available tower
The optimal solution of north well azimuth Dir is respectively as follows: Angle=3.1 °, Dir=348 °.
Embodiment 3
According to above-mentioned steps, it is thus achieved that four groups of data are respectively (100 °, 1.14 °), (190 °, 3.22 °), (280 ° ,-
1.14 °), (10 ° ,-3.22 °), relative to positive north bottom the tower of maximum tilt angle Angle and synthesis bottom available tower
The optimal solution of well azimuth Dir is respectively as follows: Angle=3.42 °, Dir=350 °.
Embodiment 4
According to above-mentioned steps, it is thus achieved that four groups of data are respectively (30 ° ,-2.9 °), (120 °, 1.04 °), (210 °, 2.9 °),
(300 ° ,-1.04 °), relative to positive north inclination side bottom the tower of maximum tilt angle Angle and synthesis bottom available tower
The optimal solution of position Dir is respectively as follows: Angle=3.08 °, Dir=10.3 °.
Present invention additionally comprises based on real on the basis of above-mentioned Wind turbines tower foundation uneven settlement off-line checking method
Existing Wind turbines tower foundation uneven settlement on-line monitoring method, at Wind turbines tower foundation settlement off-line checking method
Step 7) after, further comprising the steps of:
8) tower bottom inside being provided with on-line monitoring sensor, line monitoring sensor is according to step 7) the middle conjunction obtained
Bottom the tower become, bottom the tower of maximum tilt angle Angle and synthesis, optimal solution relative to positive north well azimuth Dir is entered
Row calibration is also made zero, and the dynamic data that the on-line monitoring sensor after zero is monitored is the dynamic number of tower barrel base sedimentation
According to.
The present invention uses sedimentation and the safety of tower of beam type inclination sensor Fundamentals of Measurement, can accurate Fundamentals of Measurement in real time
Sedimentation and the dynamic tilt state of tower, take measures to safeguard in time.Installation and debugging of the present invention are convenient, and low cost.This
The dynamic tilt data of the tower that invention obtains, may recognize that tower structural damage through Algorithm Analysis, and flange bolt loosens
Problem, and the location fix of generation problem can be positioned.The present invention by synthesis angle of inclination, can the inclination of real Reaction plane,
Safety analysis to tower makes great sense.
The present invention knitting golden three pool wind energy turbine set, scholar wind energy turbine set is praised in middle Fujian, Jinjiang-shenhuwan wind energy turbine set, Shen can Gaoyou synergism wind-powered electricity generation
, tower such as east dragon ring port, source marine wind electric field installed and used, using effect is fine, can accurately Fundamentals of Measurement sedimentation in real time
And the dynamic tilt state of tower, take measures in time to safeguard.Installation and debugging of the present invention are convenient, and low cost.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (3)
1. Wind turbines tower foundation uneven settlement off-line checking method, it is characterised in that comprise the following steps:
1) circumferential equally distributed bolt numbering on tower flange in the bottom face is given the most clockwise, it is assumed that have N number of bolt, i.e. bolt to compile
Number be respectively 1,2,3 N；
2) angle a1 formed by the line at first bolt and the line at tower door center and direct north and tower center is measured；
3) angle a2 formed by the line at tower center and the line at tower door center and direct north and tower center is measured；
4) angle a, a=formed by the line at first bolt and the line at tower center and direct north and tower center is calculated
2×a1-a2；
5) utilize beam type inclination sensor that the flange face of bolt position is measured, it is assumed that be drawn into needs measurement
The numbered S of bolt corresponding to flange face, then on the flange face position of the bolt position numbered at this S, described beam type inclines
Angle formed by the axis of oblique sensor and the line at direct north and tower center is X, wherein X=360 × S ÷ N+a-90 °,
And it is Y that beam type inclination sensor records the angle with horizontal plane；
6) according to step 5) method, the flange face of at least two difference bolt position therein is measured, obtains
At least two groups are respectively (X about angle X and the data of angle Y, at least two group data1,Y1), (X2,Y2)······；
7) calculate bottom the tower of synthesis bottom the tower of maximum tilt angle Angle and synthesis relative to positive north well azimuth
Dir, by step 6) at least two group data (X1,Y1) and (X2,Y2) substitution formula below (1):
Sin (Y)=sin (Angle) × cos (X-Dir), (1)
Used wheat quart method plus general Global Optimization Method by above-mentioned formula (1), calculate maximum inclination bottom the tower of synthesis
Optimal solution relative to positive north well azimuth Dir bottom the tower of angle A ngle and synthesis.
2. Wind turbines tower foundation uneven settlement off-line checking method as claimed in claim 1, it is characterised in that described
Beam type inclination sensor is uniaxially beam type inclination sensor.
3. Wind turbines tower foundation uneven settlement on-line monitoring method, it is characterised in that include such as claim 1 or 2
Wind turbines tower foundation uneven settlement off-line checking method described in one claim, at described Wind turbines tower base
The step 7 of plinth differential settlement off-line checking method) after, further comprising the steps of:
8) tower bottom inside being provided with on-line monitoring sensor, described line monitoring sensor is according to step 7) the middle conjunction obtained
Bottom the tower become, bottom the tower of maximum tilt angle Angle and synthesis, optimal solution relative to positive north well azimuth Dir is entered
Row calibration is also made zero, and the dynamic data that the on-line monitoring sensor after zero is monitored is the dynamic number of tower barrel base sedimentation
According to.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610795831.1A CN106248049B (en) | 2016-08-31 | 2016-08-31 | Wind turbines tower foundation uneven settlement off-line checking method and on-line monitoring method |
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|---|---|---|---|
| CN201610795831.1A CN106248049B (en) | 2016-08-31 | 2016-08-31 | Wind turbines tower foundation uneven settlement off-line checking method and on-line monitoring method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044389A (en) * | 2017-04-26 | 2017-08-15 | 北京唐浩电力工程技术研究有限公司 | A kind of wind set tower drum tilt measuring method and system |
| CN112102240A (en) * | 2020-08-11 | 2020-12-18 | 风脉能源（武汉）股份有限公司 | Method and device for measuring inclination of tower drum foundation ring based on machine vision, and computer equipment |
| CN112268542A (en) * | 2020-10-23 | 2021-01-26 | 湖南砼联科技有限责任公司 | Detection method and measurement device for inclination angle of tower of wind turbine generator |
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| CN107044389A (en) * | 2017-04-26 | 2017-08-15 | 北京唐浩电力工程技术研究有限公司 | A kind of wind set tower drum tilt measuring method and system |
| CN112102240A (en) * | 2020-08-11 | 2020-12-18 | 风脉能源（武汉）股份有限公司 | Method and device for measuring inclination of tower drum foundation ring based on machine vision, and computer equipment |
| CN112268542A (en) * | 2020-10-23 | 2021-01-26 | 湖南砼联科技有限责任公司 | Detection method and measurement device for inclination angle of tower of wind turbine generator |
| CN112268542B (en) * | 2020-10-23 | 2022-11-08 | 湖南砼联科技有限责任公司 | Detection method and measurement device for inclination angle of tower of wind turbine generator |
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| CN106248049B (en) | 2018-12-18 |
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