CN106194599A - System and method for monitoring safety of wind generating set in wind power plant - Google Patents
System and method for monitoring safety of wind generating set in wind power plant Download PDFInfo
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- CN106194599A CN106194599A CN201610577340.XA CN201610577340A CN106194599A CN 106194599 A CN106194599 A CN 106194599A CN 201610577340 A CN201610577340 A CN 201610577340A CN 106194599 A CN106194599 A CN 106194599A
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- 239000010720 hydraulic oil Substances 0.000 description 2
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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
- F03D7/00—Controlling wind motors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention provides a system and a method for monitoring the safety of a wind generating set in a wind power plant, wherein the system comprises the following steps: the device comprises a collecting unit, a transmission unit and a control unit; the acquisition unit is arranged on a wind generating set of the wind power plant and used for acquiring an image or a video of the tested component; one tested assembly corresponds to one acquisition unit, and each acquisition unit is provided with a unique identification code to represent the corresponding relation between the acquisition unit and the tested assembly; the transmission unit is used for receiving the image or the video acquired by the acquisition unit and transmitting the image or the video to the control unit; the control unit is used for extracting the characteristic quantity of the image or the video, comparing the extracted characteristic quantity with the corresponding reference characteristic quantity, judging whether the tested component has a fault according to the comparison result, and giving an alarm when the tested component is judged to have the fault; the control unit prestores the corresponding relation between the reference characteristic quantity of each tested assembly and the unique identification code of the acquisition unit. The method does not need manual operation and has high efficiency.
Description
Technical field
The present invention relates to technical field of wind power generation, particularly relate to a kind of monitor wind power generating set safety in wind energy turbine set
System and method.
Background technology
Along with the continuous exhaustion of global energy, green energy resource generating is increasingly paid attention to, and wherein, wind-power electricity generation is exactly wherein
Main a kind of forms of electricity generation.
It is known that in the parts of Wind turbines (including mechanical part and electric component) running at the scene, along with
Easily there is the phenomenons, such as mechanical part such as some crackles, flaw and oils and fats leakage in the change of time, environment and operating condition
Fatigue crack etc..If finding that the phenomenon that these impacts run safety will result in the biggest security risk not in time.
In prior art, the mode for wind power generating set detection specifically includes that ultrasonic listening and laser flaw detection etc..
But, both modes are relatively costly, and affected by applied environment and have limitation, are difficult to popularization and application.
General still by manually participating in detection, the most both waste of manpower resources, on-line real-time measuremen can not be met again and automatically identify report
Alert.
Summary of the invention
In order to solve above technical problem present in prior art, in the present invention provides a kind of monitoring wind energy turbine set, wind-force is sent out
The system and method for group of motors safety, it is possible to automatically in monitoring wind energy turbine set the parts of Wind turbines whether occur crackle, flaw and
The problems such as oils and fats leakage, get rid of potential safety hazard in time, and in guarantee wind energy turbine set, each Wind turbines is properly functioning.
The embodiment of the present invention provides a kind of and monitors the system of wind power generating set safety in wind energy turbine set, including: collecting unit,
Transmission unit and control unit；
Described collecting unit is installed in the wind power generating set of wind energy turbine set, for obtaining the image of MUT module under test or regarding
Frequently；One corresponding described collecting unit of described MUT module under test, each described collecting unit has exclusive identification code to characterize
Described collecting unit and the corresponding relation of MUT module under test；
Described transmission unit, for receiving described image or the video that described collecting unit obtains, and by described image or
Transmission of video gives described control unit；
Described control unit, for carrying out Characteristic Extraction to described image or video, by the characteristic quantity of extraction with corresponding
Fixed reference feature amount compare, judge whether described MUT module under test breaks down according to comparative result, described tested when judging
Report to the police during component failure；Described control unit prestores the fixed reference feature amount of each described MUT module under test with described
The corresponding relation of the exclusive identification code of collecting unit.
Preferably, described collecting unit includes wireless camera and wireless transmitter；
Arranging at least one described wireless camera in each described wind power generating set, each described wireless camera has institute
State exclusive identification code；
One wireless transmitter is set in each described wind power generating set；
Described wireless camera and described wireless transmitter may be contained within the rotary components of described wind power generating set；
Described wireless camera, for being sent to described wireless in a wireless form by the image of the MUT module under test of collection or video
Emitter；
Described wireless transmitter, obtains for launching all described wireless cameras in this wind power generating set in a wireless form
Image or video.
Preferably, described wireless camera and described wireless transmitter are arranged at the impeller internal of described wind power generating set.
Preferably, described transmission unit includes: wireless receiver and Ethernet switch；
One described wireless receiver and a described Ethernet switch are set in each described wind power generating set；
Described wireless receiver and Ethernet switch are arranged on the non-rotating component of described wind power generating set；
Described wireless receiver, for receiving the figure that the wireless transmitter in this wind power generating set is launched in a wireless form
Picture or video, and this image or video are sent to the Ethernet switch of this wind power generating set；
Described Ethernet switch, for being sent to described control unit by image or the video of reception by Ethernet.
Preferably, described wireless receiver is arranged at the engine room inside of described wind power generating set；
Described Ethernet switch is arranged at inside tower；
Described wireless receiver and described Ethernet switch are communicated by wired ethernet.
Preferably, described control unit, it is used for when judging that described MUT module under test is reported to the police when breaking down, particularly as follows:
Described control unit determines described wireless phase according to the exclusive identification code of wireless camera corresponding to described MUT module under test
Wind-driven generator group # that machine is positioned at and the title of described MUT module under test and installation site.
Preferably, described control unit is the server of the remote monitoring center being positioned at wind energy turbine set looped network；
Described server is corresponding for receiving the MUT module under test in all wind power generating set in described wind energy turbine set looped network
Image or video, when judging that MUT module under test breaks down, send to fault wind power generating set corresponding to this MUT module under test
Protection instruction, to control the protection act of the protection mechanism execution correspondence in described fault wind power generating set.
Preferably, described control unit is the controller being positioned on single wind generator unit；
Described controller, for receiving image corresponding to all MUT module under tests in this wind power generating set or video, when
Judge that described MUT module under test notifies when breaking down that the protection mechanism of this wind power generating set performs corresponding protection act.
Preferably, described fault include following at least one: crackle, flaw, deformation and oils and fats are revealed.
The embodiment of the present invention also provides for a kind of monitoring the method for wind power generating set safety in wind energy turbine set, described in utilization is
Assembly in wind power generating set is monitored by system, including:
Collecting unit is utilized to obtain image or the video of MUT module under test；
Utilize transmission unit by described image or transmission of video to control unit；
Described control unit carries out Characteristic Extraction to described image or video, by the characteristic quantity extracted and corresponding reference
Characteristic quantity compares, and judges whether described MUT module under test breaks down according to comparative result, when judging that described MUT module under test is sent out
Report to the police during raw fault.
Preferably, also include:
When judging that described MUT module under test breaks down, send protection to the wind power generating set that this MUT module under test is corresponding and refer to
Order, to control the protection act of the protection mechanism execution correspondence in wind power generating set.
Compared with prior art, the present invention at least has the advantage that
Utilize collecting unit to gather image or the video of assembly on Wind turbines in wind energy turbine set, this image or video are sent
To control unit, control unit is extracted the characteristic quantity in image or video, is compared with the fixed reference feature amount being obtained ahead of time, root
Whether break down according to comparative result determination component, report to the police when judging and breaking down, allow maintainer in time to fault
Assembly overhauls or changes.This system with the safe condition of assembly in means for automatic monitoring group, thus can be pinpointed the problems in time, solves
Certainly problem, it is to avoid major accident occurs, improves the generating efficiency of wind energy turbine set.The method is without the most on duty, and efficiency comparison is high.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application 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 described in application, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawing can also be obtained according to these accompanying drawings.
System embodiment one schematic diagram of wind power generating set safety in the monitoring wind energy turbine set that Fig. 1 provides for the present invention；
In the monitoring wind energy turbine set that Fig. 2 a provides for the present invention, the one of the system embodiment two of wind power generating set safety is shown
It is intended to；
The another kind of schematic diagram of the system embodiment two of the monitoring wind energy turbine set safety that Fig. 2 b provides for the present invention；
System embodiment three schematic diagram of wind power generating set safety in the monitoring wind energy turbine set that Fig. 3 provides for the present invention；
System embodiment four schematic diagram of wind power generating set safety in the monitoring wind energy turbine set that Fig. 4 provides for the present invention；
Embodiment of the method one flow chart of wind power generating set safety in the monitoring wind energy turbine set that Fig. 5 provides for the present invention.
Drawing reference numeral illustrates:
100-collecting unit；200-transmission unit；300-control unit；301-server；302-controller；101-first
Wireless camera；102-the second wireless camera；103-wireless transmitter；201-wireless receiver；202-Ethernet switch.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with in the embodiment of the present invention
Accompanying drawing, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only this
Invent a part of embodiment rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art exist
Do not make the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
The technical scheme of embodiments of the invention is not limited to crackle, flaw and oils and fats and reveals monitoring and the report in pollution face
Alert, can be used for monitoring the various application that surface structure changes.For convenience of description, below wind power generating set is referred to as machine
Group.
System embodiment one:
Seeing Fig. 1, this figure is the system embodiment one that wind power generating set is safe in the monitoring wind energy turbine set that the present invention provides
Schematic diagram.
It should be noted that the fault of MUT module under test includes but not limited to crackle, flaw, large deformation and oils and fats leakage etc..
As long as the surface corresponding with during original state, the present surface of MUT module under test there occurs change, the side that the present invention provides can be used
Method is monitored and early warning.
Wherein, crackle and flaw phenomenon are primarily directed to mechanical part and electric component at the long running of unit
The impact that the fatigue crack of middle appearance damages or brings because of environmental change.Such as salt air corrosion causes assembly generation corrosion.Temperature
Humidity change causes electric component surface to there occurs large change etc..
Oils and fats is revealed: is usually bearing grease and reveals, and Hydraulic Station hydraulic oil is revealed or gear case oil is revealed, the number of collection
According to generally at the image of seam or the video of easy oil leakage.
Early stage for image acquisition and Characteristic Extraction, preferably component failure.Such as crack fault, general feelings
Under condition, crackle is that fatigue damage causes, relative with the spreading rate in mid-term slow in early days, once expands to late period, is running into
Big load condition is easier to moment fracture.Therefore the most early capture crack fault, be more conducive to carrying out, early of maintenance work
The fault of phase can be repaired as early as possible, not only wins maintenance time, avoids the generation of secondary accident simultaneously.
It addition, the image procossing mode taked for the type of fault is all identical.Such as crackle, flaw and oils and fats are let out
Dew pollution faces etc., all using histogram modification algorithm to obtain gray threshold, i.e. gray threshold need to split through iteration beta pruning image
Algorithm successive ignition calculates and determines.
The system of wind power generating set safety in the monitoring wind energy turbine set that the present embodiment provides, including: collecting unit 100, biography
Defeated unit 200 and control unit 300；
Collecting unit 100 is installed in the wind power generating set of wind energy turbine set, for obtaining image or the video of MUT module under test；
One corresponding collecting unit 100 of MUT module under test；Each collecting unit 100 has exclusive identification code to characterize collecting unit
100 with the corresponding relation of MUT module under test；
It should be noted that the frequency that collecting unit 100 gathers image or video can be as desired to set, due to machine
MUT module under test in group occurs that flaw is all gradual amount, therefore less demanding to sample frequency, can splitting according to MUT module under test
Stricture of vagina or flaw spread scenarios arrange sample frequency.
What collecting unit 100 gathered is image or video, it is also possible to as desired to arrange, do not do and have in the present embodiment
Body limits.For example, it is possible to interval preset time period gathers an image, it is also possible to gather the video in preset time period.
It is understood that need the assembly of monitoring may be for multiple, such as on unit: blade, wheel hub, pitch variable bearings and
Electric components within cabinet etc. are required to monitoring.The most each MUT module under test needs a corresponding collecting unit.
Further, each collecting unit needs have exclusive identification code, in order to when control unit receives multiple image, distinguishes
The source of image and MUT module under test corresponding to image.
Exclusive identification code can represent the identity of collecting unit, such as, the serial number of collecting unit can be used as uniquely
Identification code.
If when multiple MUT module under tests are used in conjunction with a collecting unit then subsequent treatment image, being not easy to distinguish image
Corresponding MUT module under test.Therefore, each MUT module under test uses a collecting unit to be easy to the follow-up identification to image.
Transmission unit 200, for receiving image or the video that collecting unit 100 obtains, and gives image or transmission of video
Control unit 300；
It is understood that the image that sends of collecting unit 100 or video carry self exclusive identification code.
It is understood that typically for cost-effective and control difficulty, a control unit can be shared with multiple units
300.Discounting for cost and the complexity of control, it is also possible to a unit is used alone a control unit 300.
Control unit 300, for image or video are carried out Characteristic Extraction, characteristic quantity (the such as parts that will extract
Face crack characteristic quantity, unwanted visual characteristic amount or oils and fats reveal and pollute region feature amount etc.) compare with corresponding fixed reference feature amount
Relatively, judge whether MUT module under test breaks down according to comparative result, when judging to report to the police when MUT module under test breaks down；Control
Unit 300 prestores the corresponding relation of the fixed reference feature amount of each MUT module under test and the exclusive identification code of collecting unit.
Push it is understood that the form reported to the police can be automatic alarm.When crackle, flaw or oils and fats leakage phenomenon are distinguished
After knowledge, by sound or graphical interfaces in home server display alarm information, or warning message is accessed wind energy turbine set monitoring
With data collecting system (SCADA, Supervisory Control And Data Acquisition), SCADA push
Warning message is to headquarters server record.
It should be noted that the fixed reference feature amount of each MUT module under test has obtained, i.e. at MUT module under test
The image gathered when normal condition or video (such as MUT module under test just dispatched from the factory state when having not been used), when normal condition
The image gathered extracts characteristic quantity, using this feature amount as fixed reference feature amount, by this fixed reference feature amount and this MUT module under test pair
The exclusive identification code correspondence of the collecting unit answered preserves.I.e. MUT module under test, the exclusive identification code of collecting unit and MUT module under test
This three of fixed reference feature amount be respectively provided with one-to-one relationship.The exclusive identification code that control unit is carried from the image received can
To know the fixed reference feature amount of MUT module under test that this image is corresponding.
It is understood that control unit 300 preserve MUT module under test include the title of MUT module under test, installation site and
Corresponding machine group #.
Control unit 300 is extracted characteristic quantity and relevant image processing algorithm can be used to realize, such as marginalisation detection,
Binary conversion treatment, histogram modification, image filtering and segmentation scheduling algorithm.It is understood that the algorithm for image procossing is equal
It is current mature technology, it is possible to use in prior art, the method to image procossing realizes, the present embodiment will not do and have
Body is introduced.
The system that the present embodiment provides, utilizes collecting unit to gather image or the video of assembly on unit in wind energy turbine set, will
This image or video are sent to control unit, and control unit extracts the characteristic quantity in image or video, with the reference being obtained ahead of time
Whether characteristic quantity compares, break down according to comparative result determination component, reports to the police when judging and breaking down, allows dimension
Faulty components is overhauled or changes by the personnel that repair in time.This system can with the safe condition of assembly in means for automatic monitoring group, from
And discover problems and solve them in time, it is to avoid there is major accident, improve the generating efficiency of wind energy turbine set.
It should be noted that collecting unit can be realized by wireless camera, it is also possible to realized by wired camera.
Owing to wind power generating set includes that rotating part and non-rotating part, general collecting unit are positioned at rotating part, in order to image passes
The convenience passed, gathers image preferably by wireless camera.It is understood that wired camera can also be utilized to realize figure
As gathering, but image transmitting now needs to utilize conducting slip ring to transmit, and will strengthen the difficulty of signal transmission.
System embodiment two:
See Fig. 2 a and Fig. 2 b, this figure be the present invention provide monitoring wind energy turbine set in wind power generating set safety system reality
Execute the schematic diagram of example two.
It should be noted that control unit may be located on unit, it is also possible to be positioned at remote monitoring center.Work as control unit
When being positioned on unit, it is still desirable to warning message is sent to the server of remote monitoring center, to notify monitoring personnel.
As shown in Figure 2 a, control unit is the server 301 of the remote monitoring center being positioned at wind energy turbine set looped network.
Server 301, for receiving image corresponding to the MUT module under test on all units in wind energy turbine set looped network or video,
When judging that MUT module under test breaks down, send protection instruction to the unit that this MUT module under test is corresponding, to control the guarantor on unit
Protect mechanism and perform protection act.
Now, server 301 analyze and process image, server 301 prestores the reference of each MUT module under test
The corresponding relation of the exclusive identification code of characteristic quantity and collecting unit.
As shown in Figure 2 b, control unit is the controller 302 being positioned on unit, all tested for receive in the unit
Image that assembly is corresponding or video, when the protection mechanism judging to control when MUT module under test breaks down this unit, to perform protection dynamic
Make；Controller 302 is additionally operable to comparative result by being sent to the server 301 of remote monitoring center.
Now, controller 302 prestores the fixed reference feature amount of each MUT module under test and unique mark of collecting unit
The corresponding relation of code.Controller 302 on unit can realize the process of image and compare, and when judging according to comparative result
Report to the police when MUT module under test breaks down.
For being realized the situation of image procossing by the controller 302 of unit, typically require that every unit is equipped with identical
Controller.The warning message of controller 302 output is transmitted directly to unit control system, by unit control system according to warning
Information controls protection mechanism and performs corresponding protection act.
Unit control system itself has theft-resistant link chain, is used for protecting unit and output warning message, due to every unit and
Keeping communication between remote monitoring center, therefore remote monitoring center can directly inquire warning message.
Relative to being realized the situation of image procossing by server, although it is hard to be realized many of image procossing by controller 302
Part entity, cost can increase, but also has its advantage, such as image information can be with treatment in situ, it is not necessary to takies or less takies wind
The Internet resources of electric field, result is transmitted directly to unit control system, and unit control system directly carries out protection process, no
Can stop over because of the problem of communication.Such as, when between unit and server, communication is broken down, it is impossible in time to generation
The MUT module under test of fault is protected.
Disposal ability is calculated far above the data of controller on unit owing to the data of server 301 calculate disposal ability,
The process of image can also be realized by the server 301 of remote monitoring center.Therefore, following example are made with server 301
Its operation principle is illustrated for control unit.
It is understood that inherently include controller on the unit of prior art, remote monitoring center also is provided with service
Device, but controller of the prior art and server do not possess function above in the embodiment of the present invention, it is impossible to monitor tested
The state of assembly.
Server in remote monitoring center can process the quilt that all units in whole wind energy turbine set looped network are corresponding simultaneously
Surveying image or the video of assembly, wind energy turbine set looped network carries out communication generally by Ethernet or optical fiber.
It should be noted that Fig. 1, Fig. 2 a and Fig. 2 b all illustrates three collecting units, but above example of the present invention
Being not intended to the number of collecting unit, the number of the MUT module under test that can monitor according to actual needs is arranged.
System embodiment three:
Seeing Fig. 3, this figure is the system embodiment three that wind power generating set is safe in the monitoring wind energy turbine set that the present invention provides
Schematic diagram.
Being positioned at remote monitoring center with control unit in the present embodiment, collecting unit is wireless camera and wireless transmitter is
Example is introduced.
Collecting unit includes wireless camera and wireless transmitter；
Arranging at least one wireless camera on each unit, each wireless camera has exclusive identification code；
One wireless transmitter is set on each unit；
Wireless camera and wireless transmitter may be contained within wind energy turbine set on the rotary components of wind power generating set；
Wireless camera, for being sent to wireless transmitter in a wireless form by the image of the MUT module under test of collection or video；
Wireless transmitter, for launching the image or video that on this unit, all wireless cameras obtain in a wireless form.
Preferably, wireless camera and wireless transmitter are arranged at the impeller internal of unit.So, wireless camera may be used for
Gather the image of rotary components.
It should be noted that wireless camera and wireless transmitter can integrate, such as, some wireless cameras collect
Become to have wireless transmitter.Certainly, wireless camera and wireless transmitter can also independently be arranged.
It is understood that it is generally required to monitor the state of multiple MUT module under test on a unit, it is therefore desirable to arrange many
Individual wireless camera, each MUT module under test is correspondingly arranged a wireless camera.
Fig. 3 such as illustrate with two wireless cameras, the respectively first wireless camera 101 and the second wireless camera
102.First wireless camera 101 has exclusive identification code A, and the second wireless camera 102 has exclusive identification code B.Wireless transmitter
The image that first wireless camera 101 and the second wireless camera 102 gather all is transmitted to wireless receiver 201, wireless receiving by 103
The image of reception is sent to Ethernet switch 202 by device 201.
Relative to wireless transmitter 103, transmission unit includes: wireless receiver 201 and Ethernet switch 202；
One wireless receiver 201 and an Ethernet switch 202 are set on each unit；
Wireless receiver 201 and Ethernet switch 202 are arranged on the non-rotating component of wind power generating set；
Wireless receiver 201, for receiving the image of wireless transmitter 103 transmitting on this unit in a wireless form or regarding
Frequently, and this image or video are sent to the Ethernet switch 202 of this unit；
It should be noted that owing to unit is higher, the nearlyest hundred meters, and Ethernet switch 202 is typically mounted at tower
Inside, is generally located on the ground floor of tower.Wireless receiver 201 is arranged in cabin, and both are away from too far away, utilize wireless with
Too net cannot transmit signal.Therefore, it is to be carried out by wired ethernet between wireless receiver 201 and Ethernet switch 202
Communication, close together due between wireless receiver 201 and wireless transmitter 103, therefore can be passed by wireless ethernet
Defeated signal.
Ethernet switch 202, for being sent to control unit by image or the video of reception by Ethernet.This enforcement
In example, control unit is to be positioned at the server 301 of remote monitoring center.
Generally, Ethernet switch 202 by optical fiber by image or transmission of video to remote monitoring center
Server 301.
Wireless receiver 201 is arranged at the engine room inside of unit.Ethernet switch 202 is arranged at inside tower, wireless
Receptor 201 and Ethernet switch 202 are communicated by wired ethernet.
It should be noted that control unit, for reporting to the police when MUT module under test breaks down when judging, particularly as follows:
Control unit determines, according to the exclusive identification code of wireless camera corresponding to MUT module under test, the unit that wireless camera is positioned at
Numbering and the title of MUT module under test and installation site.
During it is understood that control unit is finally reported to the police, need to show the title of MUT module under test, position, corresponding wind
Electric field encodes, corresponding machine group # etc..
It addition, the present embodiment also includes memorizer, for storing normal data and the abnormal data of MUT module under test, i.e. wrap
Include: fixed reference feature amount and the image of collection, it is simple to follow-up examination.It is understood that general memory also is located at remotely monitoring
Center.
System embodiment four:
Seeing Fig. 4, this figure is the system embodiment four that wind power generating set is safe in the monitoring wind energy turbine set that the present invention provides
Schematic diagram.
The present embodiment is introduced as a example by the corresponding server of multiple units.Such as institute in one wind energy turbine set looped network
Unit is had to share a server.
It is understood that wind energy turbine set looped network generally comprises multiple unit, such as, three or more units.This reality
Execute in example and be only introduced as a example by two units.
Figure 4, it is seen that the structure of two units is identical, it is only to share same server.Due to each
Wireless camera has exclusive identification code, and therefore, server can judge the source of image according to exclusive identification code, i.e. knows image
Corresponding MUT module under test.
The system that the present embodiment provides, can detect the state of assembly on multiple unit, when the assembly being found to have simultaneously
When going wrong, and alarm, thus avoid the occurrence of serious problems, cause decrease in power generation efficiency.
A kind of system monitoring wind energy turbine set safety provided based on above example, the embodiment of the present invention also provides for a kind of prison
The method surveying wind energy turbine set safety, is described in detail below in conjunction with the accompanying drawings.
Seeing Fig. 5, this figure is the embodiment of the method one that wind power generating set is safe in the monitoring wind energy turbine set that the present invention provides
Flow chart.
A kind of method monitoring wind power generating set safety that the present embodiment provides, utilizes the system of above example to machine
Assembly in group is monitored, including:
S501: utilize collecting unit to obtain image or the video of MUT module under test；
S502: utilize transmission unit by image or transmission of video to control unit；
S503: control unit carries out Characteristic Extraction to image or video, by special with corresponding reference for the characteristic quantity extracted
The amount of levying compares, and judges whether MUT module under test breaks down according to comparative result, when judging to enter when MUT module under test breaks down
Row is reported to the police.
Technical solution of the present invention can realize double-fed and directly drive the big parts of machinery of unit, structural member and the parts such as electrically
The monitoring of the abnormal defect condition such as crackle, flaw and oils and fats leakage and early warning.
It should be noted that the fault of MUT module under test includes but not limited to crackle, flaw, large deformation and oils and fats leakage etc..
As long as the surface corresponding with during original state, the present surface of MUT module under test there occurs change, the side that the present invention provides can be used
Method is monitored and early warning.
Wherein, crackle and flaw phenomenon are primarily directed to mechanical part and electric component at the long running of unit
The impact that the fatigue crack of middle appearance damages or brings because of environmental change.Such as salt air corrosion causes assembly generation corrosion.Temperature
Humidity change causes electric component surface to there occurs large change etc..
Oils and fats is revealed: is usually bearing grease and reveals, and Hydraulic Station hydraulic oil is revealed or gear case oil is revealed, the number of collection
According to generally at the image of seam or the video of easy oil leakage.
Early stage for image acquisition and Characteristic Extraction, preferably component failure.Such as crack fault, general feelings
Under condition, crackle is that fatigue damage causes, relative with the spreading rate in mid-term slow in early days, once expands to late period, is running into
Big load condition is easier to moment fracture.Therefore the most early capture crack fault, be more conducive to carrying out, early of maintenance work
The fault of phase can be repaired as early as possible, not only wins maintenance time, avoids the generation of secondary accident simultaneously.
It addition, the image procossing mode taked for the type of fault is all identical.Such as crackle, flaw and oils and fats are let out
Dew pollution faces etc., all using histogram modification algorithm to obtain gray threshold, i.e. gray threshold need to split through iteration beta pruning image
Algorithm successive ignition calculates and determines.
The method that the present embodiment provides, utilizes collecting unit to gather image or the video of assembly in wind power generating set, will
This image or video are sent to control unit, and control unit extracts the characteristic quantity in image or video, with the reference being obtained ahead of time
Whether characteristic quantity compares, break down according to comparative result determination component, reports to the police when judging and breaking down, allows dimension
Faulty components is overhauled or changes by the personnel that repair in time.The method can with the safe condition of assembly in means for automatic monitoring group, from
And discover problems and solve them in time, it is to avoid there is major accident, improve the generating efficiency of wind energy turbine set.The method can be certainly
Dynamic realization is monitored, it is not necessary to the most on duty, and efficiency comparison is high.
Further, since impeller rotates relative to cabin, it is monitored that impeller internal has many assemblies to need, and therefore, utilizes
Wireless camera, wireless transmitter and wireless receiver realize rotary part and transmit relative to the signal between stationary parts,
Thus reduce the difficulty utilizing slip ring transmission signal.
The above, be only presently preferred embodiments of the present invention, and the present invention not makees any pro forma restriction.Though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention.Any it is familiar with those skilled in the art
Member, without departing under technical solution of the present invention ambit, may utilize the method for the disclosure above and technology contents to the present invention
Technical scheme makes many possible variations and modification, or is revised as the Equivalent embodiments of equivalent variations.Therefore, every without departing from
The content of technical solution of the present invention, the technical spirit of the foundation present invention is to any simple modification made for any of the above embodiments, equivalent
Change and modification, all still fall within the range of technical solution of the present invention protection.
Claims (11)
1. monitor the system of wind power generating set safety in wind energy turbine set for one kind, it is characterised in that including: collecting unit, transmission are single
Unit and control unit；
Described collecting unit is installed in the wind power generating set of wind energy turbine set, for obtaining image or the video of MUT module under test；One
The corresponding described collecting unit of individual described MUT module under test, each described collecting unit has exclusive identification code and adopts described in characterizing
Collection unit and the corresponding relation of MUT module under test；
Described transmission unit, for receiving described image or the video that described collecting unit obtains, and by described image or video
It is transferred to described control unit；
Described control unit, for carrying out Characteristic Extraction to described image or video, by the characteristic quantity extracted and corresponding ginseng
Examine characteristic quantity to compare, judge whether described MUT module under test breaks down according to comparative result, when judging described MUT module under test
Report to the police when breaking down；Described control unit prestores the fixed reference feature amount of each described MUT module under test and described collection
The corresponding relation of the exclusive identification code of unit.
In monitoring wind energy turbine set the most according to claim 1 wind power generating set safety system, it is characterised in that described in adopt
Collection unit includes wireless camera and wireless transmitter；
At least one described wireless camera is set in each described wind power generating set, each described wireless camera have described in only
One identification code；
One wireless transmitter is set in each described wind power generating set；
Described wireless camera and described wireless transmitter may be contained within the rotary components of described wind power generating set；
Described wireless camera, for being sent to described wireless transmit in a wireless form by the image of the MUT module under test of collection or video
Device；
Described wireless transmitter, for launching the figure that in this wind power generating set, all described wireless cameras obtain in a wireless form
Picture or video.
The system of wind power generating set safety in monitoring wind energy turbine set the most according to claim 2, it is characterised in that described nothing
Line camera and described wireless transmitter are arranged at the impeller internal of described wind power generating set.
The system of wind power generating set safety in monitoring wind energy turbine set the most according to claim 2, it is characterised in that described biography
Defeated unit includes: wireless receiver and Ethernet switch；
One described wireless receiver and a described Ethernet switch are set in each described wind power generating set；
Described wireless receiver and Ethernet switch are arranged on the non-rotating component of described wind power generating set；
Described wireless receiver, for receive in a wireless form image that the wireless transmitter in this wind power generating set launches or
Video, and this image or video are sent to the Ethernet switch of this wind power generating set；
Described Ethernet switch, for being sent to described control unit by image or the video of reception by Ethernet.
The system of wind power generating set safety in monitoring wind energy turbine set the most according to claim 4, it is characterised in that described nothing
Line receiver is arranged at the engine room inside of described wind power generating set；
Described Ethernet switch is arranged at inside tower；
Described wireless receiver and described Ethernet switch are communicated by wired ethernet.
The system of wind power generating set safety in monitoring wind energy turbine set the most according to claim 2, it is characterised in that described control
Unit processed, is used for when judging that described MUT module under test is reported to the police when breaking down, particularly as follows:
Described control unit determines described wireless camera position according to the exclusive identification code of wireless camera corresponding to described MUT module under test
In wind-driven generator group # and the title of described MUT module under test and installation site.
The system of wind power generating set safety in monitoring wind energy turbine set the most according to claim 1, it is characterised in that described control
Unit processed is the server of the remote monitoring center being positioned at wind energy turbine set looped network；
Described server, for receiving the figure that the MUT module under test in all wind power generating set in described wind energy turbine set looped network is corresponding
Picture or video, when judging that MUT module under test breaks down, the fault wind power generating set corresponding to this MUT module under test sends protection
Instruction, to control the protection act of the protection mechanism execution correspondence in described fault wind power generating set.
The system of wind power generating set safety in monitoring wind energy turbine set the most according to claim 1, it is characterised in that described control
Unit processed is the controller being positioned on single wind generator unit；
Described controller, for receiving image corresponding to all MUT module under tests in this wind power generating set or video, works as judgement
Described MUT module under test notifies when breaking down that the protection mechanism of this wind power generating set performs corresponding protection act.
9., according to the system of wind power generating set safety in the monitoring wind energy turbine set described in any one of claim 1-8, its feature exists
In, described fault include following at least one: crackle, flaw, deformation and oils and fats are revealed.
10. monitor the method for wind power generating set safety in wind energy turbine set for one kind, it is characterised in that utilize claim 1-9 arbitrary
Assembly in wind power generating set is monitored by the system described in Xiang, including:
Collecting unit is utilized to obtain image or the video of MUT module under test；
Utilize transmission unit by described image or transmission of video to control unit；
Described control unit carries out Characteristic Extraction to described image or video, by the characteristic quantity extracted and corresponding fixed reference feature
Amount compares, and judges whether described MUT module under test breaks down according to comparative result, when judging that described MUT module under test occurs event
Report to the police during barrier.
The method of wind power generating set safety in 11. monitoring wind energy turbine set according to claim 10, it is characterised in that also wrap
Include:
When judging that described MUT module under test breaks down, send protection instruction to the wind power generating set that this MUT module under test is corresponding,
To control the protection act of the protection mechanism execution correspondence in wind power generating set.
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| CN201610577340.XA CN106194599A (en) | 2016-07-20 | 2016-07-20 | System and method for monitoring safety of wind generating set in wind power plant |
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| CN201610577340.XA CN106194599A (en) | 2016-07-20 | 2016-07-20 | System and method for monitoring safety of wind generating set in wind power plant |
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Application publication date: 20161207 |