CN103969331A - Wind driven generator blade detection device - Google Patents
Wind driven generator blade detection device Download PDFInfo
- Publication number
- CN103969331A CN103969331A CN201410196181.XA CN201410196181A CN103969331A CN 103969331 A CN103969331 A CN 103969331A CN 201410196181 A CN201410196181 A CN 201410196181A CN 103969331 A CN103969331 A CN 103969331A
- Authority
- CN
- China
- Prior art keywords
- acoustic emission
- signal
- driven generator
- blade
- wind
- 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
Abstract
The invention provides a wind driven generator blade detection device which comprises an acoustic emission detection device and a data analysis device, wherein the acoustic emission detection device comprises an acoustic emission source, an acoustic emission sensor, a signal conditioning circuit, a digital encoding circuit and a wireless fidelity (WiFi) emitter; the data analysis device comprises a WiFi receiver, an acoustic emission signal acquisition card signal acquisition processing system and a display system. The acoustic emission source is used for transmitting elastic waves to wind driven generator blades to be detected; the acoustic emission sensor is used for detecting mechanical vibration of the wind driven generator blades to be detected caused by the elastic waves, generating an electric signal which expresses the mechanical vibration and transmitting the electric signal to the signal conditioning circuit; the signal conditioning circuit is used for performing digital signal processing on the electric signal.
Description
Technical field
The present invention relates to wind-power electricity generation detection field, more particularly, the present invention relates to a kind of blade of wind-driven generator pick-up unit.
Background technology
Aerogenerator work a period of time after, due to the daily servicing of blower fan, blade often less than attention, blade is occurring along with the variation of time to change at adverse condition such as sunlight, acid rain, blast, self-vibration, dust storm, salt fogs.On ground, once pinpoint the problems, blade is due to aging and Lock-in natural cracking, trachoma, surface abrasion, lightning damage, transversal crack etc.Bring the maintenance cost of great number to the operation maintenance of blade.
Therefore, the carrying out judgement promptly and accurately of the damage of blade is a urgent problem.
Summary of the invention
Technical matters to be solved by this invention is for there being above-mentioned defect in prior art, and a kind of blade of wind-driven generator pick-up unit of the infringement that can promptly and accurately judge blade is provided.
In order to realize above-mentioned technical purpose, according to the present invention, provide a kind of blade of wind-driven generator pick-up unit, comprising: acoustic emission detection system and data analysis set-up; Wherein, described acoustic emission detection system comprises: acoustic emission source, calibrate AE sensor, signal conditioning circuit, numerical coding circuit and WiFi transmitter; And described data analysis set-up comprises WiFi receiver, acoustic emission signal capture card signal acquiring processing system and display system; Described acoustic emission source is for launching elastic wave to blade of wind-driven generator to be detected; Described calibrate AE sensor is for detection of the mechanical vibration of the caused blade of wind-driven generator to be detected of described elastic wave, and the electric signal of the described mechanical vibration of generation expression, and gives described signal conditioning circuit by described electrical signal transfer; Described signal conditioning circuit is used for described electric signal to carry out digital signal processing, and gives described numerical coding circuit by the electrical signal transfer after digital signal processing; Described numerical coding circuit is used for the electric signal after digital signal processing to encode to obtain coded data, and described coded data is passed to described WiFi transmitter; Described WiFi transmitter is for connecting by WiFi the described WiFi receiver that described coded data is passed to described data analysis set-up; Described WiFi receiver is used for receiving described coded data and described coded data is passed to described acoustic emission signal capture card signal acquiring processing system; Described acoustic emission signal capture card signal acquiring processing system is for extracting the information of the mechanical vibration that represent the caused detection of described elastic wave blade of wind-driven generator to be detected from described coded data; Described display system is used for showing described information.
Preferably, described digital signal processing comprise to electric signal amplify, at least one in Isolation and linearization process.
Preferably, described acoustic emission source, described calibrate AE sensor, signal conditioning circuit, described numerical coding circuit and described WiFi transmitter are mounted to a housing.
Preferably, described acoustic emission detection system separates with described data analysis set-up physics.
Preferably, described information exchange is crossed the intensity that numerical values recited represents mechanical vibration.
The invention provides a kind of blade of wind-driven generator pick-up unit, this blade of wind-driven generator pick-up unit may be made in portable blade of wind-driven generator pick-up unit; And this blade of wind-driven generator pick-up unit can detect blade of wind-driven generator effectively due to operation conditionss such as aging occurred crackle, natural cracking, surface abrasion, trachomas.This blade of wind-driven generator pick-up unit uses simple, convenient operation; And this blade of wind-driven generator pick-up unit can Real-Time Monitoring blade operation conditions, instruct for the operation maintenance of blade provides site technology.
Brief description of the drawings
By reference to the accompanying drawings, and by reference to detailed description below, will more easily there is more complete understanding to the present invention and more easily understand its advantage of following and feature, wherein:
Fig. 1 schematically shows the block diagram of blade of wind-driven generator pick-up unit according to the preferred embodiment of the invention.
It should be noted that, accompanying drawing is used for illustrating the present invention, and unrestricted the present invention.Note, the accompanying drawing that represents structure may not be to draw in proportion.And in accompanying drawing, identical or similar element indicates identical or similar label.
Embodiment
In order to make content of the present invention more clear and understandable, below in conjunction with specific embodiments and the drawings, content of the present invention is described in detail.
Fig. 1 schematically shows the block diagram of blade of wind-driven generator pick-up unit according to the preferred embodiment of the invention.
As shown in Figure 1, blade of wind-driven generator pick-up unit comprises according to the preferred embodiment of the invention: acoustic emission detection system and data analysis set-up.
Wherein, described acoustic emission detection system comprises: acoustic emission source 11, calibrate AE sensor 10, signal conditioning circuit 20, numerical coding circuit 30 and WiFi transmitter 40; And described data analysis set-up comprises WiFi receiver 50, acoustic emission signal capture card (PXDAQ) signal acquiring processing system 60 and display system 70.
Preferably, described acoustic emission source 11, described calibrate AE sensor 10, signal conditioning circuit 20, described numerical coding circuit 30 and described WiFi transmitter 40 are mounted to a housing to be installed in use on blade 100.
And preferably, described acoustic emission detection system separates with described data analysis set-up physics, can be arranged in diverse location.
Described acoustic emission source 11 is for launching elastic wave to blade of wind-driven generator 100 to be detected;
Described calibrate AE sensor 10 is for detection of the mechanical vibration of the caused blade of wind-driven generator 100 to be detected of described elastic wave (due to the stress inducing), and produce the electric signal that represents described mechanical vibration, and give described signal conditioning circuit 20 by described electrical signal transfer.
Described signal conditioning circuit 20 is for described electric signal is carried out to digital signal processing, and gives described numerical coding circuit 30 by the electrical signal transfer after digital signal processing; Preferably, described digital signal processing comprise to electric signal amplify, at least one in Isolation and linearization process.
Described numerical coding circuit 30 is for the electric signal after digital signal processing is encoded to obtain coded data, and described coded data is passed to described WiFi transmitter 40; Herein, can encode according to any appropriate format.
Described WiFi transmitter 40 passes to described coded data for connect (as shown in phantom in Figure 1) by WiFi the described WiFi receiver 50 of described data analysis set-up.
Described WiFi receiver 50 is for receiving described coded data and described coded data being passed to described acoustic emission signal capture card signal acquiring processing system 60.
Described acoustic emission signal capture card signal acquiring processing system 60 for example, for extracting the information (, described information exchange is crossed the intensity that numerical values recited represents mechanical vibration) of the mechanical vibration that represent the caused detection of described elastic wave blade of wind-driven generator 100 to be detected from described coded data.
Described display system 70 is for showing described information.
In use, acoustic emission detection system is installed on blade 100.And, in the time that blade of wind-driven generator pick-up unit is started working, acoustic emission source 11 sends elastic wave to make elastic wave finally be communicated to the surface of blade to blade 100, calibrate AE sensor 10 is surveyed the displacement of blade surface, and mechanical vibration are converted to electric signal by calibrate AE sensor 20, then electric signal is through signal conditioning circuit 20, and signal conditioning circuit 20 can amplify electric signal, Isolation, linearization process etc., has improved electric signal reliability and accuracy.The electric signal process numerical coding circuit 30 after processing through signal conditioning circuit 20, data are encoded, then by WiFi transmitter 40, coded data is outwards launched, point-to-point WiFi receptacle 50 is installed on the computer of ground monitoring station, give PXDAQ (acoustic emission signal capture card) signal acquiring processing system 60 coded data, then show the damaged condition of blade by the form of for example numerical values recited in display system 70.
Thus, the invention provides a kind of pick-up unit of Portable wind-driven generator blade, this device mainly solves the detection of blade of wind-driven generator, judges blade due to aging occurred crackle, natural cracking, surface abrasion degree, thereby can provide guidance to the operation maintenance of blade.
In addition, it should be noted that, unless stated otherwise or point out, otherwise the descriptions such as term " first " in instructions, " second ", " the 3rd " are only for distinguishing each assembly, element, step of instructions etc., instead of for representing logical relation or the ordinal relation etc. between each assembly, element, step.
Be understandable that, although the present invention discloses as above with preferred embodiment, but above-described embodiment is not in order to limit the present invention.For any those of ordinary skill in the art, do not departing from technical solution of the present invention scope situation, all can utilize the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not depart from technical solution of the present invention,, all still belongs in the scope of technical solution of the present invention protection any simple modification made for any of the above embodiments, equivalent variations and modification according to technical spirit of the present invention.
Claims (5)
1. a blade of wind-driven generator pick-up unit, is characterized in that comprising: acoustic emission detection system and data analysis set-up; Wherein, described acoustic emission detection system comprises: acoustic emission source, calibrate AE sensor, signal conditioning circuit, numerical coding circuit and WiFi transmitter; And described data analysis set-up comprises WiFi receiver, acoustic emission signal capture card signal acquiring processing system and display system;
Described acoustic emission source is for launching elastic wave to blade of wind-driven generator to be detected;
Described calibrate AE sensor is for detection of the mechanical vibration of the caused blade of wind-driven generator to be detected of described elastic wave, and the electric signal of the described mechanical vibration of generation expression, and gives described signal conditioning circuit by described electrical signal transfer;
Described signal conditioning circuit is used for described electric signal to carry out digital signal processing, and gives described numerical coding circuit by the electrical signal transfer after digital signal processing;
Described numerical coding circuit is used for the electric signal after digital signal processing to encode to obtain coded data, and described coded data is passed to described WiFi transmitter;
Described WiFi transmitter is for connecting by WiFi the described WiFi receiver that described coded data is passed to described data analysis set-up;
Described WiFi receiver is used for receiving described coded data and described coded data is passed to described acoustic emission signal capture card signal acquiring processing system;
Described acoustic emission signal capture card signal acquiring processing system is for extracting the information of the mechanical vibration that represent the caused detection of described elastic wave blade of wind-driven generator to be detected from described coded data;
Described display system is used for showing described information.
2. blade of wind-driven generator pick-up unit according to claim 1, is characterized in that, described digital signal processing comprise to electric signal amplify, at least one in Isolation and linearization process.
3. blade of wind-driven generator pick-up unit according to claim 1 and 2, is characterized in that, described acoustic emission source, described calibrate AE sensor, signal conditioning circuit, described numerical coding circuit and described WiFi transmitter are mounted to a housing.
4. blade of wind-driven generator pick-up unit according to claim 1 and 2, is characterized in that, described acoustic emission detection system separates with described data analysis set-up physics.
5. blade of wind-driven generator pick-up unit according to claim 1 and 2, is characterized in that, described information exchange is crossed the intensity that numerical values recited represents mechanical vibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410196181.XA CN103969331A (en) | 2014-05-09 | 2014-05-09 | Wind driven generator blade detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410196181.XA CN103969331A (en) | 2014-05-09 | 2014-05-09 | Wind driven generator blade detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103969331A true CN103969331A (en) | 2014-08-06 |
Family
ID=51239082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410196181.XA Pending CN103969331A (en) | 2014-05-09 | 2014-05-09 | Wind driven generator blade detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103969331A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458911A (en) * | 2014-12-16 | 2015-03-25 | 中国科学院工程热物理研究所 | Defect type determination method for ultrasonic testing of wind turbine blades |
| CN106441903A (en) * | 2016-09-28 | 2017-02-22 | 内蒙古工业大学 | Experiment research device for dynamic characteristics of horizontal axis composite wind turbine blade |
| CN109142522A (en) * | 2018-08-02 | 2019-01-04 | 中冶建筑研究总院有限公司 | A kind of land blower foundation defect lossless detection method |
| CN113738598A (en) * | 2021-09-08 | 2021-12-03 | 泉州信息工程学院 | Abnormity detection system of wind driven generator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110060703A (en) * | 2009-11-30 | 2011-06-08 | 주식회사 렉터슨 | Acoustic emission sensor apparatus and wireless defect diagnostics system for high pressure pipe using thereof |
| CN102721741A (en) * | 2012-06-18 | 2012-10-10 | 北京科技大学 | Wind power blade damage monitoring and positioning system based on wireless acoustic emission sensor network |
| CN103221814A (en) * | 2010-08-17 | 2013-07-24 | 韩国标准科学研究院 | Method and apparatus for locating a source of damage in a large composite material structure |
-
2014
- 2014-05-09 CN CN201410196181.XA patent/CN103969331A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110060703A (en) * | 2009-11-30 | 2011-06-08 | 주식회사 렉터슨 | Acoustic emission sensor apparatus and wireless defect diagnostics system for high pressure pipe using thereof |
| CN103221814A (en) * | 2010-08-17 | 2013-07-24 | 韩国标准科学研究院 | Method and apparatus for locating a source of damage in a large composite material structure |
| US20130191040A1 (en) * | 2010-08-17 | 2013-07-25 | Korea Research Institute Of Standards And Science | Method and apparatus for locating a source of damage in a large composite material structure |
| CN102721741A (en) * | 2012-06-18 | 2012-10-10 | 北京科技大学 | Wind power blade damage monitoring and positioning system based on wireless acoustic emission sensor network |
Non-Patent Citations (3)
| Title |
|---|
| 吴广辉等: "基于声发射技术的水轮机转轮叶片裂纹检测", 《电网与清洁能源》 * |
| 朱永凯等: "基于声发射传感器阵列的风机叶片结构健康监测方法", 《无损检测》 * |
| 许晓燕等: "风机叶片静载荷和模态测试技术", 《宇航材料工艺》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458911A (en) * | 2014-12-16 | 2015-03-25 | 中国科学院工程热物理研究所 | Defect type determination method for ultrasonic testing of wind turbine blades |
| CN104458911B (en) * | 2014-12-16 | 2017-01-25 | 中国科学院工程热物理研究所 | Defect type determination method for ultrasonic testing of wind turbine blades |
| CN106441903A (en) * | 2016-09-28 | 2017-02-22 | 内蒙古工业大学 | Experiment research device for dynamic characteristics of horizontal axis composite wind turbine blade |
| CN106441903B (en) * | 2016-09-28 | 2018-06-12 | 内蒙古工业大学 | A kind of trunnion axis wind machine's laminae made from composite material study dynamic properties device |
| CN109142522A (en) * | 2018-08-02 | 2019-01-04 | 中冶建筑研究总院有限公司 | A kind of land blower foundation defect lossless detection method |
| CN113738598A (en) * | 2021-09-08 | 2021-12-03 | 泉州信息工程学院 | Abnormity detection system of wind driven generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104730081B (en) | A kind of fault detection system for wind-power blade | |
| CN103969331A (en) | Wind driven generator blade detection device | |
| CN204536215U (en) | A kind of fault detection system for wind-power blade | |
| CN201523223U (en) | Intelligent monitoring system for surge protector | |
| CN103364072A (en) | Wind turbine generator blade on-line detecting method and device | |
| CN106706241B (en) | Active self-checking device and method for damage of wind turbine blade | |
| CN206876330U (en) | A kind of offshore floating type blower fan anchoring system fracture failure forecast system | |
| CN104101652A (en) | Audio signal based wind power blade damage monitoring method and system | |
| CN106680661A (en) | Automatic electric power fault detection device | |
| CN101982765B (en) | Method and device for on-line detecting iced and damaged transmission line based on elastic wave | |
| CN104280683A (en) | Mechanical fault monitoring device for power transformer motor and fan | |
| CN204168005U (en) | A kind of power grid security risk evaluating system | |
| CN106194602B (en) | A kind of wireless acoustic emission detection system of Wind turbines | |
| CN104568327A (en) | Novel ring main unit SF6 gas leakage on-line monitoring device | |
| CN114330513A (en) | Fan blade fault detection method, device and system and storage medium | |
| CN204402954U (en) | The device of monitoring fan operation state | |
| CN205450079U (en) | Wind generating set's thunder current measuring device | |
| CN204881916U (en) | Cable head temperature real -time supervision and early warning system | |
| CN203616426U (en) | Insulator electrified detection system, insulator electrified detector and handheld receiving terminal | |
| CN101930037A (en) | Intelligent monitoring system for surge protector | |
| CN202937433U (en) | Diaphragm pump failure warning system based on vibration detection | |
| CN111693135A (en) | Power equipment anomaly detection method based on acoustic array edge calculation | |
| CN202916243U (en) | Bus duct operating condition real-time wireless monitoring system | |
| CN202599571U (en) | Bayonet-type polished-rod sensor | |
| CN104537828A (en) | Device for detecting carrier communication in power consumption information collection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140806 |
|
| RJ01 | Rejection of invention patent application after publication |