CN110274917A - A kind of wind power generation unit blade surface defect access device and camera lens layout method - Google Patents
A kind of wind power generation unit blade surface defect access device and camera lens layout method Download PDFInfo
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- CN110274917A CN110274917A CN201910523766.0A CN201910523766A CN110274917A CN 110274917 A CN110274917 A CN 110274917A CN 201910523766 A CN201910523766 A CN 201910523766A CN 110274917 A CN110274917 A CN 110274917A
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- 230000007547 defect Effects 0.000 title claims abstract description 24
- 238000010248 power generation Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 16
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims description 4
- 241000883990 Flabellum Species 0.000 claims description 3
- 238000003745 diagnosis Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 201000001371 inclusion conjunctivitis Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 206010044325 trachoma Diseases 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
Abstract
The present invention relates to a kind of wind power generation unit blade surface defect access device and camera lens layout methods, belong to fault diagnosis of wind turbines field.The present invention includes the phase group of planes for shooting image, for being laid out the bracket of a phase group of planes, positioning camera, image processing server, the communications cable and AC power source；The phase group of planes is rack-mount, the positioning camera is mounted on the side of a phase group of planes and is located at the middle part of a phase group of planes, the phase group of planes and positioning camera are connect with image processing server by the communications cable, and described image processing server is connect with AC power source.Multiple eyepieces of the phase group of planes are arranged in camber line.The length of the communications cable is 100m.Structure is simple, system compact, practical, is suitble to wind-powered electricity generation industry to use, has operability, in practice it has proved that be a kind of good method.
Description
Technical field
The present invention relates to a kind of wind power generation unit blade surface defect access device and camera lens layout methods, belong to Wind turbines
Fault diagnosis field.
Background technique
In recent years, the utilization that global renewable energy utilization annual growth reaches 25%. renewable energy will be with electric power row
Industry be it is leading, the power generation ratio of non-waterpower renewable energy will be enlarged by twice.According to statistics, the consumption of the year two thousand thirty renewable energy will
More than 2,200,000,000 t oil equivalents.A kind of wind power generation renewable energy power generation most mature as the technology in addition to hydroelectric generation, installation
Capacity accounts for the overwhelming majority of entire renewable energy power generation installation total capacity.
Wind power generating set includes wind wheel, generator；Containing the composition such as blade, wheel hub, reinforcing member in wind wheel；It has blade by
The functions such as Wind-driven rotating power generation, the rotation of generator head.Wind-power electricity generation power supply is by wind power generating set, the tower of support generating set
The composition such as frame, storage battery charge controller, inverter, unloader, net-connected controller, battery group.
The blade of wind power generating set is exposed to field throughout the year, by wind, solarization, drenches with rain, is struck by lightning, easily generates various
Defect.It is varied that fan blade generates the reason of defect:
1, defect is produced
1.1 use unreasonable material
1.2 not stringent quality controls
1.3 production work technical process are excessively complicated, are difficult the consistent product of the quality of production.
2, natural cause
Be struck by lightning blade.Specifically include that lightning stroke, the particle in air, high speed winds, shearing wind, harsh weather, fatigue life.
3, it is improper to run and safeguard
3.1 surpass rated power operation
3.2 out of control
When machine pitch-controlled system breaks down, the brake on machine will not make impeller stop operating, and out of control, meeting occurs in blade
Continue quickly rotation, seriously will lead to blade and dish out, cause blower catastrophic failure.
3.3 lack preventive maintenance
In the day-to-day operation maintenance of blower, blade cannot often be paid attention to.But the aging of blade is but in sunlight, acid
Variation occurs with the variation of time under conditions of rain, blast, self-vibration, dust storm, salt fog etc. are unfavorable.The daily maintenance of blade
It is difficult examination and maintenance to blade, all natural cracking can occurs because of aging in many wind field blades, trachoma, surface abrasion,
Broken by lightning, transversal crack etc..If these problems daily maintenance is handled properly, so that it may avoid in the future the maintenance cost of great number,
Reduce economic loss caused by shutting down.
In view of this, disclosing wind generator set blade table in the patent document application No. is 201810052136.5
Planar defect intelligent checking system.Wind turbines substantial amounts, blade is easy to produce security risk, and security risk reason is a variety of
Multiplicity carrys out great difficulty to the automatic identification of wind power generation unit blade failure, classification, positioning belt.
Summary of the invention
It is an object of the invention to overcome the above deficiencies in the existing technologies, and provide a kind of reasonable in design
Wind power generation unit blade surface defect access device and camera lens layout method.
Technical solution used by the present invention solves the above problems is: wind power generation unit blade surface defect access device,
Its design feature is: including the phase group of planes for shooting image, for being laid out the bracket of a phase group of planes, and positioning camera, at image
Manage server, the communications cable and AC power source；The phase group of planes is rack-mount, and the positioning camera is mounted on a phase group of planes
Side and the middle part for being located at a phase group of planes, the phase group of planes and positioning camera are connected with image processing server by the communications cable
It connects, described image processing server is connect with AC power source.
Further, multiple eyepieces of the phase group of planes are arranged in camber line.
Further, the length of the communications cable is 100m.
Further, the phase group of planes, positioning camera and image processing server pass through the communications cable with AC power source
Connection.
Further, another technical purpose of the invention is to provide a kind of wind power generation unit blade surface defect access dress
The camera lens layout method set.
Above-mentioned technical purpose of the invention technical scheme is that.
A kind of camera lens layout method of wind power generation unit blade surface defect access device, it is characterized in that: the camera lens cloth
Office's method is as follows:
Several camera arrangements are in a row, and be installed on bracket, so that the eyepiece of each camera is arranged in one section of camber line
On, form a phase group of planes；Positioning camera is installed on the side of a phase group of planes and is located at the middle part of a phase group of planes, and effect is mentioned to a phase group of planes
For positioning, guarantee captured blade in the viewfinder range of a phase group of planes, and guarantee that the image minimum of shooting is differentiated
Size be 5mm；The data that a phase group of planes is taken are transmitted to image processing server by the communications cable and are handled, AC power source
Power supply is provided for the above equipment；The placement position difference of camera can generate different object distances with the inclination angle difference of flabellum.
Compared with prior art, the invention has the following advantages that
1, structure is simple, system compact, practical, is suitble to wind-powered electricity generation industry to use, has operability, in practice it has proved that be
A kind of good method.
2, has science, the phase group of planes camber for shooting image arranges, and the range found a view is increased, so that shooting
Entire blade is achieved, and meets the long 60m of fan blade of windmill, the actual photographed requirement of wide 6m.
3, have many advantages, such as that high sensitivity, calculating speed are fast, visual result is vivid.
4, strong operability, on the basis of considering scientific, index is reasonable, and initial data facilitates acquisition, has
Operability.
5, comparativity is strong.
6, guide property is strong, quantitative statistics, can provide data for scientific research.
7, there is broad applicability.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of Wind turbines surface defects of blades access device in the present invention.
Fig. 2 is the side structure schematic view of Wind turbines surface defects of blades access device in the present invention.
Fig. 3 is the overlooking structure diagram of Wind turbines surface defects of blades access device in the present invention.
Fig. 4 is the schematic diagram of the embodiment of the present invention 1.
Fig. 5 is the schematic diagram of the embodiment of the present invention 2.
In figure: a phase group of planes 1, bracket 2, positioning camera 3, image processing server 4, the communications cable 5, AC power source 6.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited to following embodiments.
Referring to figs. 1 to 5, it should however be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc. are only used
To cooperate the revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the invention can
The qualifications of implementation, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, it should all still fall in disclosed skill
In the range of art content can cover.Meanwhile if in this specification with reference as "upper", "lower", "left", "right", " centre " and
The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
Wind power generation unit blade surface defect access device in the present embodiment is used including the phase group of planes 1 for shooting image
In the bracket 2 of a layout phase group of planes 1, positioning camera 3, image processing server 4, the communications cable 5 and AC power source 6；The communications cable 5
Length be 100m.
A phase group of planes 1 in the present embodiment is mounted on bracket 2, and multiple eyepieces of a phase group of planes 1 are arranged in camber line, positioning camera
3 are mounted on the side of a phase group of planes 1 and are located at the middle part of a phase group of planes 1, and a phase group of planes 1 and positioning camera 3 are and image processing server
4 are connected by the communications cable 5, and image processing server 4 is connect with AC power source 6, a phase group of planes 1, positioning camera 3 and image procossing
Server 4 is connect with AC power source 6 by the communications cable 5.
The camera lens layout method of wind power generation unit blade surface defect access device in the present embodiment, it is as follows: by several phases
Machine is arranged in a row, and is installed on bracket 2, so that the eyepiece of each camera is arranged on one section of camber line, forms a phase group of planes 1；
Positioning camera 3 is installed on the side of a phase group of planes 1 and is located at the middle part of a phase group of planes 1, and effect is to provide positioning to a phase group of planes 1, guarantees
Captured blade in the viewfinder range of a phase group of planes 1, and guarantee shooting image minimum differentiate size be
5mm；The data that a phase group of planes 1 is taken are transmitted to image processing server 4 and are handled by the communications cable 5, AC power source 6 be with
Upper equipment provides power supply；The placement position difference of camera can generate different object distances with the inclination angle difference of flabellum.
The important technological parameters of a table 1- phase group of planes
| Index name | Effective area | Elemental area | Resolution ratio |
| Unit | mm | um | / |
| Numerical value | 12.7*9.52 | 3.1*3.1 | 4192*3128 |
Table 2- blade important technological parameters
| Blade | It is long | It is wide |
| Unit | m | m |
| Numerical value | 60 | 6 |
Embodiment different object distances, focal length, inclination angle, camera lens number splicing result are as follows:
Embodiment 1:80m object distance, 7 85mm focal length lens, the splicing situation of 7 °, 14 °, 21 ° camera lenses of tilt angle: overlapping
Region be successively 2.012,2.07,2.213m.Overall visual field is 76.2m.Imaging size is 12.6572*9.4664mm, individually
Camera lens visual field is 11.9*8.9m.It is shown in Figure 4
Embodiment 2:69.1m object distance, 6 50mm focal length lens, the splicing feelings of 3.5 °, 9.5 °, 17.5 ° camera lenses of tilt angle
Condition: overlapping region is respectively 10.4m and 8.3m.Total visual field is 64.5m.Imaging size is 12.85*9.41mm, single camera lens view
Field is 17.75*13m.It is shown in Figure 5
To sum up, wind power generation unit blade surface defect access device and camera lens layout method have the advantage that
1, structure is simple, system compact, practical, is suitble to wind-powered electricity generation industry to use, has operability, in practice it has proved that be
A kind of good method.
2, on-site assembly is facilitated to dismantle.
3, it may be implemented to detect fan blade defect, classify, position.
4, has science, the phase group of planes camber for shooting image arranges, and the range found a view is increased, so that shooting
Entire blade is achieved, and meets the long 60m of fan blade of windmill, the actual photographed requirement of wide 6m.
5, have many advantages, such as that high sensitivity, calculating speed are fast, visual result is vivid.
6, strong operability, on the basis of considering scientific, index is reasonable, and initial data facilitates acquisition, has
Operability.
7, comparativity is strong.
8, guide property is strong, quantitative statistics, can provide data for scientific research.
9, there is broad applicability.
By above-mentioned elaboration, those skilled in the art can implement.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different, and above content is only to structure of the invention example explanation described in this specification.It is all according to
According to equivalence changes or simple change that the structure, feature and principle that the invention patent is conceived is done, it is included in of the invention special
In the protection scope of benefit.Those skilled in the art can do described specific embodiment various
The similar mode of modify or supplement or adopt substitute, without departing from structure of the invention or surmount the claims institute
The range of definition, is within the scope of protection of the invention.
Claims (5)
- The device 1. a kind of wind power generation unit blade surface defect is fetched, it is characterised in that: including the phase group of planes for shooting image (1), for being laid out the bracket (2) of a phase group of planes (1), positioning camera (3), image processing server (4), the communications cable (5) and friendship Galvanic electricity source (6)；The phase group of planes (1) is mounted on bracket (2), the positioning camera (3) be mounted on a phase group of planes (1) side, And it is located at the middle part of a phase group of planes (1), the phase group of planes (1) and positioning camera (3), which pass through with image processing server (4), to be communicated Cable (5) connection, described image processing server (4) are connect with AC power source (6).
- The device 2. wind power generation unit blade surface defect according to claim 1 is fetched, it is characterised in that: the phase group of planes (1) multiple eyepieces are arranged in camber line.
- The device 3. wind power generation unit blade surface defect according to claim 1 is fetched, it is characterised in that: the communications cable (5) length is 100m.
- The device 4. wind power generation unit blade surface defect according to claim 1 is fetched, it is characterised in that: the phase group of planes (1), positioning camera (3) and image processing server (4) are connect with AC power source (6) by the communications cable (5).
- 5. a kind of wind power generation unit blade surface defect access device as described in any one of claim 1-4 claim Camera lens layout method, it is characterised in that: the camera lens layout method is as follows:Several camera arrangements are in a row, and be installed on bracket (2), so that the eyepiece of each camera is arranged in one section of camber line On, it is formed a phase group of planes (1)；Positioning camera (3) is installed on the side of a phase group of planes (1) and is located at the middle part of a phase group of planes (1), effect To provide positioning to a phase group of planes (1), guarantee captured blade in the viewfinder range of a phase group of planes (1), and guarantee The size that the image minimum of shooting is differentiated is 5mm；The data that a phase group of planes (1) is taken are transmitted at image by the communications cable (5) Reason server (4) is handled, and AC power source (6) provides power supply for the above equipment；The placement position difference of camera and flabellum Inclination angle difference can generate different object distances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910523766.0A CN110274917B (en) | 2019-06-17 | 2019-06-17 | Wind turbine generator blade surface defect taking device and lens layout method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910523766.0A CN110274917B (en) | 2019-06-17 | 2019-06-17 | Wind turbine generator blade surface defect taking device and lens layout method |
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| CN110274917A true CN110274917A (en) | 2019-09-24 |
| CN110274917B CN110274917B (en) | 2023-12-05 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120132804A (en) * | 2011-05-30 | 2012-12-10 | 대우조선해양 주식회사 | Apparatus and method for automatic inspecting wind blade |
| CN202856860U (en) * | 2012-08-09 | 2013-04-03 | 周东风 | Combined type ultra-wide high pixel digital photographic equipment |
| KR20140001310A (en) * | 2012-06-25 | 2014-01-07 | 전자부품연구원 | Aerogenerator having blade inspection function and blade inspection method thereof |
| CN104865269A (en) * | 2015-04-13 | 2015-08-26 | 华北理工大学 | Wind turbine blade fault diagnosis method |
| CN108152295A (en) * | 2018-01-19 | 2018-06-12 | 河南志格新能源科技有限公司 | Wind generator set blade surface defect intelligent checking system |
| CN109060826A (en) * | 2018-08-16 | 2018-12-21 | 大连维德集成电路有限公司 | A kind of non-stop-machine wind electricity blade detection device |
| CN210639103U (en) * | 2019-06-17 | 2020-05-29 | 华电电力科学研究院有限公司 | Wind turbine generator system blade surface defect access device |
-
2019
- 2019-06-17 CN CN201910523766.0A patent/CN110274917B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120132804A (en) * | 2011-05-30 | 2012-12-10 | 대우조선해양 주식회사 | Apparatus and method for automatic inspecting wind blade |
| KR20140001310A (en) * | 2012-06-25 | 2014-01-07 | 전자부품연구원 | Aerogenerator having blade inspection function and blade inspection method thereof |
| CN202856860U (en) * | 2012-08-09 | 2013-04-03 | 周东风 | Combined type ultra-wide high pixel digital photographic equipment |
| CN104865269A (en) * | 2015-04-13 | 2015-08-26 | 华北理工大学 | Wind turbine blade fault diagnosis method |
| CN108152295A (en) * | 2018-01-19 | 2018-06-12 | 河南志格新能源科技有限公司 | Wind generator set blade surface defect intelligent checking system |
| CN109060826A (en) * | 2018-08-16 | 2018-12-21 | 大连维德集成电路有限公司 | A kind of non-stop-machine wind electricity blade detection device |
| CN210639103U (en) * | 2019-06-17 | 2020-05-29 | 华电电力科学研究院有限公司 | Wind turbine generator system blade surface defect access device |
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