CN108915957A - A method of for monitoring the deformation of blade - Google Patents
A method of for monitoring the deformation of blade Download PDFInfo
- Publication number
- CN108915957A CN108915957A CN201810600520.4A CN201810600520A CN108915957A CN 108915957 A CN108915957 A CN 108915957A CN 201810600520 A CN201810600520 A CN 201810600520A CN 108915957 A CN108915957 A CN 108915957A
- Authority
- CN
- China
- Prior art keywords
- blade
- wind
- deformation
- wind speed
- driven generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012544 monitoring process Methods 0.000 title claims abstract description 12
- 230000004044 response Effects 0.000 claims abstract description 24
- 230000003068 static effect Effects 0.000 claims abstract description 24
- 230000006378 damage Effects 0.000 claims abstract description 16
- 238000012806 monitoring device Methods 0.000 claims abstract description 4
- 230000008859 change Effects 0.000 claims description 9
- 230000010355 oscillation Effects 0.000 claims description 4
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- 238000012545 processing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000737 periodic effect Effects 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
-
- 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
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The present invention relates to a kind of method for monitoring the deformation of blade, this method includes：Determine initial deformation amount of the blade of wind-driven generator when wind speed is lower than wind speed threshold value and the blade in a vertical position；First deflection of the blade when being in a horizontal position is measured when wind speed is lower than threshold value to determine that static state waves deformation response；The vane angle of blade is changed 90 ° and measures the second deflection of blade when wind speed is lower than threshold value and is deployed deformation response with determining static state；Deformable blade data are received from deformable blade monitoring device during the operation of wind-driven generator；And deformation response is waved according to static state, static deploys deformation response and deformable blade data determine the deformation of blade.The invention further relates to a kind of wind-driven generators.By the invention it is possible to the deformation of blade be accurately determined, thus the blade damage having found that it is likely that in time.Furthermore the system may be based on the real-time deformation data reconstruct blade of blade and open up the wind speed variation for accurately defining different location to wind speed profile.
Description
Technical field
Present invention relates in general to clean energy resource fields, in particular to a kind of for monitoring the side of the deformation of blade
Method.Moreover, it relates to a kind of wind-driven generator for the deformation that can monitor blade.
Background technique
The blade of wind-driven generator is the key component for receiving wind energy, and reliability directly affects the safety of wind-driven generator
Operation.For example, the span of foil of MW class wind turbine can be more than 50m, longest reachable 80m, and the damage of bigger blade
It is bad to will lead to higher maintenance cost.Meanwhile the carrying of blade is more complicated, be primarily subjected to have air force, inertia force and
Centrifugal force etc..The factor of vane stress is influenced, existing wind speed, wind direction, laminar flow distribution, blade icing, landform etc. are meteorological and geographical
Environmental factor, and have the mechanical factors such as blade construction, installation.Above-mentioned factor all may cause blade injury and then cause structural
Can be such as the loss of rigidity, it is bigger that the loss of usual rigidity will lead to deformable blade.How in real time and monitor blade change
Blade damage of the shape to have found that it is likely that in time is a guarantee wind-driven generator safe operation and the important hand for reducing maintenance cost
Section.
The monitoring method using sound emission or laser radar is disclosed in the prior art, but these monitoring methods are simple
The deformation data monitored is analyzed on ground, causes accuracy lower, caused by accurately cannot finding and positioning blower because of deformation
Failure.
Summary of the invention
The task of the present invention is provide a kind of method for monitoring the deformation of blade and a kind of change that can monitor blade
The wind-driven generator of shape can accurately determine the deformation of blade by this method or the wind-driven generator, to find in time
Possible blade damage thereby guarantees that wind-driven generator safe operation and reduces maintenance cost.
In the first aspect of the present invention, foregoing task is solved by a kind of for monitoring the method for the deformation of blade, should
Method includes：
Determine that the blade of wind-driven generator is initial when wind speed is lower than wind speed threshold value and the blade in a vertical position
Deflection；
First deflection of the blade when being in a horizontal position is measured when wind speed is lower than threshold value to determine that static state waves change
Shape reference response；
The vane angle of blade is changed 90 ° when wind speed is lower than threshold value and measures the second deflection of blade to determine static pendulum
Battle array deformation reference response；
Deformable blade data are received from deformable blade monitoring device during the operation of wind-driven generator；And
Deformation reference response is waved according to static state, static state deploys and deforms blade dynamic deformation in reference response and fan operation
Data determine the deformation of blade.
According to the method described in claim 1, wherein determining that the blade of wind-driven generator is being located when wind speed is lower than threshold value
Initial deformation amount when vertical position includes：It sets initial deformation amount and is equal to 0.
It is provided in a preferred embodiment of the invention, this method further includes the following steps：
When identified deformation is greater than damage threshold, output indicates the signal that blade has damaged.
It provides in another preferred embodiment of the invention, this method further includes the following steps：
It is identified deform less than damage threshold when according to wind-driven generator provide blower information determine wind speed, it is described
Blower information includes：The deflection of torque, vane angle, revolving speed and blade at the corresponding moment.
It is provided in another preferred embodiment of the invention, this method further includes the following steps：
The wind load of wind wheel plane is calculated according to the wind speed.
It provides in another preferred embodiment of the invention, this method further includes the following steps：
According to the identified Oscillation Amplitude for deforming determining blade；And
Determine whether blade damages and whether freeze according to the Oscillation Amplitude.
In the second aspect of the present invention, foregoing task is solved by a kind of wind-driven generator of deformation that can monitor blade
Certainly, which includes：
Wind wheel, the wind wheel have blade, wherein being equipped with laser radar at blade, the laser radar is configured as
Blade is scanned to obtain the deformation data of blade and the deformable blade data are sent to controller；And
Controller is configured as executing following movement：
Determine that the blade of wind-driven generator is initial when wind speed is lower than wind speed threshold value and the blade in a vertical position
Deflection；
First deflection of the blade when being in a horizontal position is measured when wind speed is lower than threshold value to determine that static state waves change
Shape response；
The vane angle of blade is changed 90 ° when wind speed is lower than threshold value and measures the second deflection of blade to determine static pendulum
Battle array deformation response；
Deformable blade data are received from the laser radar during the operation of wind-driven generator；And
Deformation response is waved according to static state, static deploys deformation response and deformable blade data determine the deformation of blade.
It is provided in a preferred embodiment of the invention, the laser radar is mounted at the web of root of blade.
It provides in another preferred embodiment of the invention, the laser radar is multi-line laser radar.
It is provided in another preferred embodiment of the invention, controller described in this method is mounted in the wheel hub of wind wheel.
The present invention at least has following beneficial effect：(1) variation of the structural parameters such as the blade stiffness obtained through the invention
Real-time monitoring information, can at the first time accurately identify blade major design damage, and feed back information to control system
System, avoid blade due to damage caused by the generations of major accidents such as be broken and fall, this is because the present invention is using unique
(calibration) measure of calibration：Determine that static state waves deformation response and static state (in blade face) and deploys when wind-force is smaller
(outside blade face) deformation response, and blade injury is accurately identified according to the deformation response；(2) furthermore the system can also be simultaneously
The wind speed variation that different location is accurately defined to wind speed profile is opened up based on the real-time deformation data reconstruct blade of blade, it is such as positive and negative
The information such as wind shear.
Detailed description of the invention
With reference to specific embodiment, the present invention is further explained with reference to the accompanying drawing.
Figure 1A shows the schematic diagram of the blade of wind-driven generator according to the present invention；
Figure 1B shows the 3-D scanning angle of the blade of wind-driven generator according to the present invention；And
Fig. 2 shows the schematic diagrames of the wind wheel of wind-driven generator according to the present invention.
Specific embodiment
It should be pointed out that each component in each attached drawing may be shown in which be exaggerated in order to illustrate, and it is not necessarily ratio
Example is correctly.In the drawings, identical appended drawing reference is equipped with to the identical component of identical or function.
In the present invention, unless otherwise indicated, " on being arranged in ... ", " being arranged in ... top " and " on being arranged in ... "
Do not exclude the case where there are intermediaries therebetween.
In the present invention, each embodiment is intended only to illustrate the solution of the present invention, and is understood not to restrictive.
In the present invention, unless otherwise indicated, quantifier "one", " one " and the scene for not excluding element.
It is also noted herein that in an embodiment of the present invention, for it is clear, for the sake of simplicity, might show only one
Sub-unit or component, but those skilled in the art are it is understood that under the teachings of the present invention, it can be according to concrete scene
Need to add required component or component.
Fig. 1 shows the schematic diagram of the blade 100 of wind-driven generator according to the present invention.
As shown in Figure 1A, the root of blade 100, preferably web initiation region at 3D scanning type laser radar is installed
101 or multi-line laser radar 101.The laser radar 101 for being mounted on the root of blade 100 can preferably scan entire leaf
Piece, to comprehensively provide deformable blade data.In addition, 3D scanning type laser radar 101 can emit multi-strip scanning laser beam,
To provide more accurate deformation data.The 3-D scanning angle of the laser radar 101 is, for example, 45 ° (referring to fig. 2), still
Other scanning angles are also conceivable.It should be noted here that although using multi-line laser radar 101 herein as deformation prison
Device is surveyed, it should be appreciated that other deformation monitoring devices, the device such as acoustic emission device, infrared monitor are also that can set
Think.
Fig. 2 shows the schematic diagrames of the wind wheel 200 of wind-driven generator according to the present invention.
As shown in Fig. 2, being mounted on 3D scanning type laser radar 101 in three blades 201,202 and 203 of wind wheel 200.
These laser radars 101 scan respective vanes 201,202 and 203 in real time and deformable blade data obtained are transferred to number
According to processing system 204.Data processing system 204 for example can be with the hardware of software, firmware or such as ASIC, FPGA etc come real
It is existing.In this embodiment, data processing system 204 is mounted in the wheel hub 205 of wind wheel, is received with reducing such as repeater, signal
Intermediate transmitting-receiving and the transmission link for sending out device etc, to reduce cost and failure risk.204 pairs of institutes of data processing system are received
Deformable blade data are handled, with the damage possibility etc. for determining blade.Then, data processing system 204 and optionally may be used
Programmed logic controller PLC 206 is communicated, and is thus kept away with revolving speed, the vane angle etc. that control blade to reduce the wind load of blade
Exempt from actual damage.
In this application, monitoring precision is improved using unique calibration measure, specific calibration measure is as follows：Small
Under wind conditions, when blade is in a vertical position, the initial deformation amount of blade is set as 0；When blade is in a horizontal position,
Deformation response is waved by static state of the gravity to blade demarcate, and determine that blade waves rigidity levels；Then, change leaf
90 ° of piece vane angle, the static state deformation response that deploys is demarcated, and determines the rigidity levels that deploy of blade.With what is waved and deploy
It, can the deformation during the operation of periodic monitoring blade and variation with rigidity dependency structure performance based on deforming calibration value.
In this application, the identification of blade stiffness variation and control feedback logic are as follows：After the completion of blade installation debugging, lead to
Cross the multi-line laser radar acquisition blade wave, shimmy deformation information, and with the wind speed of corresponding range, revolving speed and vane angle foundation
Basic data is matched, as judgement calibration value；In blower follow-up operation life cycle, reality is directly acquired by multi-line laser radar
When blade is waved, deploy deformation information, according to deformation information, in conjunction with fan master control system by wind velocity measurement system acquired in
The information such as blade vane angle, revolving speed, wind speed are control with nominal data, can determine that blade is waved, deploys and the change of torsion stiffness
Change；And feedback control system, control system provide control action, such as alarm, inferior health by built-in algorithm, and based on difference
Risk class provides different maintenance requirements.
In this application, wind speed is reconstructed in the following way：The multi-line laser radar system obtain in real time blade wave,
Deploy deformation, and when determining that blade stiffness is in health status, which can be further combined with (the experiment of initial deformation calibration value
Platform calibration result) Real-time Reconstruction blade open up to wind speed profile situation, provide the crucial wind money such as more accurate wind speed, wind shear
Source characterisitic parameter, and by the information feedback control system, make more structurally sound control action.For being applied to the complexity such as mountainous region
The blower of landform, the system can ensure that blower operation safer under such complicated wind regime.
Although some embodiments of the present invention are described in present specification, to art technology
Personnel are it is readily apparent that these embodiments are merely possible to shown in example.It may occur to persons skilled in the art that numerous
Variant schemes, alternative solution and improvement project without beyond the scope of this invention.The appended claims are intended to limit this hair
Bright range, and thereby cover the method and structure in the range of these claims itself and its equivalents.
Claims (10)
1. a kind of method for monitoring the deformation of blade, this method include：
Determine initial deformation of the blade of wind-driven generator when wind speed is lower than wind speed threshold value and the blade in a vertical position
Amount；
First deflection of the blade when being in a horizontal position is measured when wind speed is lower than threshold value to determine that static state waves deformation ginseng
Examine response；
The vane angle of blade is changed 90 ° and measures the second deflection of blade when wind speed is lower than threshold value and is deployed change with determining static state
Shape reference response；
Deformable blade data are received from deformable blade monitoring device during the operation of wind-driven generator；And
Deformation reference response is waved according to static state, static state deploys and deforms blade dynamic deformation data in reference response and fan operation
Determine the deformation of blade.
2. according to the method described in claim 1, wherein determining that the blade of wind-driven generator is being in when wind speed is lower than threshold value
Initial deformation amount when vertical position includes：It sets initial deformation amount and is equal to 0.
3. according to the method described in claim 1, further including the following steps：
When identified deformation is greater than damage threshold, output indicates the signal that blade has damaged.
4. according to the method described in claim 1, further including the following steps：
It is identified deform less than damage threshold when according to wind-driven generator provide blower information determine wind speed, the blower
Information includes：The deflection of torque, vane angle revolving speed and blade at the corresponding moment.
5. according to the method described in claim 4, further including the following steps：
The wind load of wind wheel plane is calculated according to the wind speed.
6. according to the method described in claim 1, further including the following steps：
According to the identified Oscillation Amplitude for deforming determining blade；And
Determine whether blade damages and whether freeze according to the Oscillation Amplitude.
7. one kind can monitor the wind-driven generator of the deformation of blade, including：
Wind wheel, the wind wheel have blade, wherein being equipped with laser radar at blade, the laser radar is configured as to leaf
Piece is scanned to obtain the deformation data of blade and the deformable blade data are sent to controller；And
Controller is configured as executing following movement：
Determine initial deformation of the blade of wind-driven generator when wind speed is lower than wind speed threshold value and the blade in a vertical position
Amount；
First deflection of the blade when being in a horizontal position is measured when wind speed is lower than threshold value to determine that static state waves deformation and ring
It answers；
The vane angle of blade is changed 90 ° and measures the second deflection of blade when wind speed is lower than threshold value and is deployed change with determining static state
Shape response；
Deformable blade data are received from the laser radar during the operation of wind-driven generator；And
Deformation response is waved according to static state, static deploys deformation response and deformable blade data determine the deformation of blade.
8. wind-driven generator according to claim 7, wherein the laser radar is mounted at the web of root of blade.
9. wind-driven generator according to claim 7, wherein the laser radar is multi-line laser radar.
10. wind-driven generator according to claim 7, wherein the controller is mounted in the wheel hub of wind wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810600520.4A CN108915957A (en) | 2018-06-12 | 2018-06-12 | A method of for monitoring the deformation of blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810600520.4A CN108915957A (en) | 2018-06-12 | 2018-06-12 | A method of for monitoring the deformation of blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108915957A true CN108915957A (en) | 2018-11-30 |
Family
ID=64410814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810600520.4A Pending CN108915957A (en) | 2018-06-12 | 2018-06-12 | A method of for monitoring the deformation of blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108915957A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578223A (en) * | 2019-01-16 | 2019-04-05 | 远景能源（江苏）有限公司 | A kind of device and corresponding detection method of the rigidity for pilot blade |
| CN110469460A (en) * | 2019-08-08 | 2019-11-19 | 北京汉能华科技股份有限公司 | A kind of fault detection method and system of wind-driven generator |
| CN112963315A (en) * | 2021-04-12 | 2021-06-15 | 上海电气风电集团股份有限公司 | Blade of wind generating set, detection device and method |
| CN113217300A (en) * | 2021-05-28 | 2021-08-06 | 郑州爱因特电子科技有限公司 | Fan blade clearance value monitoring method based on multi-head laser measurement |
| CN113847216A (en) * | 2021-10-14 | 2021-12-28 | 远景智能国际私人投资有限公司 | Method, device and equipment for predicting state of fan blade and storage medium |
| CN114704439A (en) * | 2022-06-07 | 2022-07-05 | 东方电气风电股份有限公司 | Wind generating set blade torsional deformation on-line monitoring method |
| WO2022270435A1 (en) * | 2021-06-22 | 2022-12-29 | 株式会社田代合金所 | Movement body state inference system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015045014A1 (en) * | 2013-09-25 | 2015-04-02 | 株式会社日立製作所 | Wind turbine device, abnormality detection device for wind turbine device, and abnormality detection method for wind turbine device |
| JP6037302B2 (en) * | 2012-05-01 | 2016-12-07 | 国立大学法人東京工業大学 | Wind power generator |
| CN106286152A (en) * | 2016-09-14 | 2017-01-04 | 北京金风科创风电设备有限公司 | The blade state monitoring device of wind power generating set and monitoring method |
| CN106528908A (en) * | 2015-09-01 | 2017-03-22 | Ssb风系统两合公司 | Method for estimating the surface condition of a rotating blade |
-
2018
- 2018-06-12 CN CN201810600520.4A patent/CN108915957A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6037302B2 (en) * | 2012-05-01 | 2016-12-07 | 国立大学法人東京工業大学 | Wind power generator |
| WO2015045014A1 (en) * | 2013-09-25 | 2015-04-02 | 株式会社日立製作所 | Wind turbine device, abnormality detection device for wind turbine device, and abnormality detection method for wind turbine device |
| CN106528908A (en) * | 2015-09-01 | 2017-03-22 | Ssb风系统两合公司 | Method for estimating the surface condition of a rotating blade |
| CN106286152A (en) * | 2016-09-14 | 2017-01-04 | 北京金风科创风电设备有限公司 | The blade state monitoring device of wind power generating set and monitoring method |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578223A (en) * | 2019-01-16 | 2019-04-05 | 远景能源（江苏）有限公司 | A kind of device and corresponding detection method of the rigidity for pilot blade |
| CN110469460A (en) * | 2019-08-08 | 2019-11-19 | 北京汉能华科技股份有限公司 | A kind of fault detection method and system of wind-driven generator |
| CN112963315A (en) * | 2021-04-12 | 2021-06-15 | 上海电气风电集团股份有限公司 | Blade of wind generating set, detection device and method |
| CN112963315B (en) * | 2021-04-12 | 2022-01-25 | 上海电气风电集团股份有限公司 | Blade of wind generating set, detection device and method |
| CN113217300A (en) * | 2021-05-28 | 2021-08-06 | 郑州爱因特电子科技有限公司 | Fan blade clearance value monitoring method based on multi-head laser measurement |
| WO2022270435A1 (en) * | 2021-06-22 | 2022-12-29 | 株式会社田代合金所 | Movement body state inference system |
| CN113847216A (en) * | 2021-10-14 | 2021-12-28 | 远景智能国际私人投资有限公司 | Method, device and equipment for predicting state of fan blade and storage medium |
| CN113847216B (en) * | 2021-10-14 | 2023-09-26 | 远景智能国际私人投资有限公司 | Fan blade state prediction method, device, equipment and storage medium |
| CN114704439A (en) * | 2022-06-07 | 2022-07-05 | 东方电气风电股份有限公司 | Wind generating set blade torsional deformation on-line monitoring method |
| CN114704439B (en) * | 2022-06-07 | 2022-08-19 | 东方电气风电股份有限公司 | Wind generating set blade torsional deformation on-line monitoring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108915957A (en) | A method of for monitoring the deformation of blade | |
| CN105452899B (en) | Turbine fluid velocity field measurement | |
| CN102782315B (en) | For the protection of wind turbine from the method and apparatus damaged | |
| US9234506B2 (en) | Estimation of wind properties using a light detection and ranging device | |
| US20130003071A1 (en) | System and Method of In Situ Wind Turbine Blade Monitoring | |
| EP3181897B1 (en) | Operating a wind turbine | |
| US20090039650A1 (en) | Event monitoring via combination of signals | |
| ES2662330T3 (en) | Methods and systems to detect sensor failure modes | |
| US20110216307A1 (en) | High Density Wind Velocity Data Collection for Wind Turbine | |
| EP2295794A2 (en) | Wind turbine as wind-direction sensor | |
| EP3642481B1 (en) | A method for determining wind turbine blade edgewise load recurrence | |
| GB2532585A (en) | Turbine fluid velocity field measurement | |
| CN114450483A (en) | Detection of abnormal conditions of wind turbine generator | |
| Berg et al. | Field test results from the Sandia SMART rotor | |
| Myrent et al. | Aerodynamic sensitivity analysis of rotor imbalance and shear web disbond detection strategies for offshore structural health prognostics management of wind turbine blades | |
| US20230026286A1 (en) | Method for computer-implemented monitoring of a wind turbine | |
| Kim et al. | A real-time deflection monitoring system for wind turbine blades using a built-in laser displacement sensor | |
| ES2927770T3 (en) | Wind turbine operation method based on maximum thrust limit | |
| Cohal et al. | Fault Detection and Isolation of a Wind Turbine | |
| Roy | Performance assesment of SCADA based wind turbine: condition monitoring approaches | |
| Eldeeb et al. | Effect of Cracks in Wind Turbine Blades on Natural Frequencies During Operation | |
| Griffith | Sensing in Renewable Energy Systems: Modal Testing and Structural Health & Prognostics Management. | |
| Hoell et al. | Damage detection in a wind turbine blade based on time series methods | |
| Bennouk et al. | Performance and FMECA of a wind turbine based on SCADA and lidar data | |
| Griffith | Cost Reductions for Offshore Wind Plants through Structural Health and Prognostics Management. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181130 |