CN113883016A - Real-time monitoring method and system for blade root bolt fracture of wind generating set blade - Google Patents
Real-time monitoring method and system for blade root bolt fracture of wind generating set blade Download PDFInfo
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- CN113883016A CN113883016A CN202111358306.0A CN202111358306A CN113883016A CN 113883016 A CN113883016 A CN 113883016A CN 202111358306 A CN202111358306 A CN 202111358306A CN 113883016 A CN113883016 A CN 113883016A
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- bolt
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000013307 optical fiber Substances 0.000 claims abstract description 36
- 238000012545 processing Methods 0.000 claims abstract description 16
- 230000002159 abnormal effect Effects 0.000 claims abstract description 11
- 230000003287 optical effect Effects 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000010248 power generation Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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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
- 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
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- 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 invention provides a real-time monitoring method and a real-time monitoring system for fracture of a bolt at a blade root of a blade of a wind generating set, wherein the real-time monitoring method and the real-time monitoring system comprise an optical fiber force sensing unit, a data acquisition unit and a central processing unit, wherein each bolt at the blade root is provided with one optical fiber force sensing unit; the central processing unit is used for judging whether the corresponding blade root bolt is abnormal or not according to the received data signal; the invention realizes real-time fracture monitoring of the blade root bolt of the wind turbine generator, automatically judges whether the generator works or not, and improves safety guarantee while ensuring power generation work.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a method and a system for monitoring bolt fracture of a blade root of a wind generating set in real time.
Background
With the further development of the wind power market, the trend of the wind power generation set is developing towards a high tower and a long blade. Currently, some domestic wind farms have been equipped with long blades with a rotor diameter of 140m and are further developing towards the trend of 150 m and 160 m. Along with the longer and longer of paddle length, concern about paddle safety is higher and higher, and the influence of paddle safety on the overall safety of the unit is larger and larger.
The blades are the most important and the largest parts in the wind driven generator, each blade is connected with a rotating shaft of the generator through a plurality of blade root bolts, the blade root bolts are the parts which are most prone to fracture in the wind driven generator, and the fracture or looseness of the blade root bolts can cause the wind driven generator to be damaged or even collapse. During the normal operation of the wind generating set, the inspection cycle is generally half a year to one year, the inspection cycle interval is long, the fracture condition of the blade root bolt cannot be found in time, and a large amount of time, manpower and material resources are consumed in each inspection.
Disclosure of Invention
The invention aims to provide a method and a system for monitoring the fracture of a bolt at a blade root of a blade of a wind generating set in real time, which solve the defects in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a real-time monitoring system for blade root bolt fracture of a wind generating set blade, which comprises an optical fiber force sensing unit, a data acquisition unit and a central processing unit, wherein each blade root bolt is provided with one optical fiber force sensing unit;
and the central processor is used for judging whether the corresponding blade root bolt is abnormal or not according to the received data signal.
Preferably, the optical fiber force sensing unit comprises an optical fiber and two optical fiber connecting parts, and each blade root bolt is provided with the optical fiber; one end of each of the two optical fiber connecting parts is respectively fixed at two ends of the optical fiber; the free ends of the two optical fiber connecting parts are fixedly connected with the blade root bolt and the blade connecting part respectively.
Preferably, the data acquisition unit comprises a signal acquisition and transmission module and a signal receiving module, wherein the signal acquisition and transmission module is used for acquiring optical signals generated by the optical fiber force sensing unit, converting the acquired optical signals into electric signals and then transmitting the electric signals to the signal receiving module; the signal receiving module is used for converting the received electric signals into data signals and transmitting the data signals to the central processing unit.
Preferably, the central processing unit is further connected with a monitoring control module for displaying the number of the abnormal blade root bolts and controlling the running state of the blades of the generator set.
Preferably, the monitoring control module comprises a brake controller and a display, wherein the brake controller is used for controlling the rotation of the blades of the wind generating set according to instructions transmitted by the central processing unit; the display is used for displaying the number of the abnormal blade root bolts.
A real-time monitoring method for the fracture of a bolt at a blade root of a blade of a wind generating set is based on the monitoring system and comprises the following steps:
collecting optical signals generated by each blade root bolt;
converting each optical signal to obtain a data signal;
and judging whether the corresponding blade root bolt is abnormal or not according to the obtained data signal.
Preferably, the monitoring method comprises: and counting the number of the abnormal blade root bolts, and controlling the operation of the blades of the wind generating set according to the counted number.
Preferably, the operation of the wind generating set blades is controlled according to the counted number, and the specific method comprises the following steps:
when the counted number is larger than or equal to a preset threshold value, controlling the blades of the wind generating set to stop working;
and when the counted number is smaller than a preset threshold value, controlling the blades of the wind generating set to continuously work.
Compared with the prior art, the invention has the beneficial effects that:
the real-time monitoring system and the real-time monitoring method for the bolt fracture of the blade root of the wind generating set realize real-time fracture monitoring of the bolt of the blade root of the wind generating set, can accurately position the fracture position of the bolt, and can feed bolt fracture information back to a monitoring base in time, so that on-site operation and maintenance personnel can find the bolt in time and automatically judge whether the generating set works or not, and the safety guarantee is improved while the power generation work is ensured.
Drawings
FIG. 1 is a block diagram of a system for monitoring blade root bolt fracture of a wind turbine generator system in real time according to the present invention;
FIG. 2 is a structural block diagram of a signal acquisition and emission module in a real-time monitoring system for bolt breakage of a blade root of a wind generating set according to the present invention;
FIG. 3 is a block diagram of a signal receiving module in a real-time monitoring system for blade root bolt fracture of a wind generating set blade according to the present invention;
FIG. 4 is a structural block diagram of a monitoring control module in a real-time monitoring system for bolt breakage of a blade root of a wind generating set according to the present invention;
fig. 5 is a structural view of the optical fiber force sensor unit.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Examples
Referring to fig. 1-4, the invention provides a real-time monitoring system for blade root bolt fracture of a wind generating set blade, which comprises a blade root bolt, an optical fiber force sensing unit, a signal acquisition and transmission module, a signal receiving module, a central processing unit and a monitoring control module, wherein:
the optical fiber force sensing unit comprises an optical fiber 1 and two optical fiber connecting parts 5, wherein each optical fiber is used for fixing the blade, and the optical fiber is arranged in the blade root bolt 2, and the two optical fiber connecting parts 5 are respectively fixed at two ends of the optical fiber 1 and are respectively fixedly connected with the blade root bolt 2 and the blade connecting part 3.
The optical fiber 1 is provided with a deformation induction section 6, and the deformation induction section 6 deforms when the optical fiber connecting part 5 is subjected to external acting force; when the blade root bolt is broken, outward tension can be generated, the optical fiber is deformed therewith, and an optical signal is generated, so that the optical signal can be collected by a signal collector in the signal collecting and transmitting module, each blade is provided with a plurality of blade root bolts, and when any blade root bolt is broken, the signal collector can receive the optical signal at the corresponding position.
The signal acquisition and transmission module comprises a signal collector, an encoder and a signal transmitter, wherein the signal collector is used for collecting optical signals generated by each optical fiber, the encoder is used for encoding the optical signals generated at different positions, and the encoded electric signals are transmitted in a wireless signal mode through the signal transmitter.
The signal receiving module is arranged at a monitoring base and comprises a signal receiver and a decoder, wherein the signal receiver is used for receiving the electric signal transmitted by the signal acquisition and transmission module and transmitting the electric signal to the decoder; the decoder is used for decoding the received electric signals to form data signals and transmitting the obtained data signals to the central processing unit.
The central processor is a computer system.
The monitoring control module comprises a brake controller and an alarm display, wherein the brake controller is used for controlling the rotation of the blades of the wind generating set; the alarm display is used for displaying the fracture number of the blade root bolt and monitoring in real time.
The central processing unit is used for judging the fracture number of the blade root bolts according to the received data signals, further controlling the alarm display to display the number, and judging whether the fracture number of the blade root bolts on a single blade exceeds the maximum value of the safe fracture number, if so, the brake controller works, otherwise, the brake controller does not work, and then, whether the generator can continue to work can be automatically judged, so that the safety guarantee is improved while the power generation work is ensured.
The monitoring method adopting the monitoring system comprises the following steps:
s1, collecting optical signals generated by optical fibers in the broken bolts through a signal collector, encoding the optical signals by using an encoder, transmitting the encoded optical signals to a monitoring base through a signal transmitter, and further receiving the broken signals in time in a long distance, so that the maintenance and judgment of the place are facilitated;
s2, a signal receiver of the monitoring base receives the wireless signal sent by the signal transmitter, the wireless signal is decoded by a decoder to form a data signal, and the data signal is transmitted to a central processing unit which is a computer system and can judge the data signal;
s3, after data processing and judgment are carried out by the central processing unit, the number and the positions of the broken blade root bolts can be directly displayed through the alarm display, meanwhile, the number of the broken blade root bolts on a single blade is judged, if the number of the broken blade root bolts on the single blade is larger than the maximum value, the blade of the wind generating set is directly braked through the brake controller, a maintainer is waited to arrive, then whether the generator can continuously work or not can be automatically judged, and the safety guarantee is improved while the power generation work is ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A real-time monitoring system for blade root bolt fracture of a wind generating set blade is characterized by comprising an optical fiber force sensing unit, a data acquisition unit and a central processing unit, wherein each blade root bolt is provided with one optical fiber force sensing unit;
and the central processor is used for judging whether the corresponding blade root bolt is abnormal or not according to the received data signal.
2. The system for monitoring the bolt breakage of the blade root of the wind generating set blade in real time according to claim 1, wherein the optical fiber force sensing unit comprises an optical fiber and two optical fiber connecting parts, and each blade root bolt is provided with the optical fiber; one end of each of the two optical fiber connecting parts is respectively fixed at two ends of the optical fiber; the free ends of the two optical fiber connecting parts are fixedly connected with the blade root bolt and the blade connecting part respectively.
3. The system for monitoring the bolt breakage of the blade root of the wind generating set blade according to claim 1, wherein the data acquisition unit comprises a signal acquisition and transmission module and a signal receiving module, wherein the signal acquisition and transmission module is used for acquiring an optical signal generated by the optical fiber force sensing unit, converting the acquired optical signal into an electrical signal and then transmitting the electrical signal to the signal receiving module; the signal receiving module is used for converting the received electric signals into data signals and transmitting the data signals to the central processing unit.
4. The system for monitoring the bolt fracture of the blade root of the wind generating set blade in real time according to claim 1, wherein the central processing unit is further connected with a monitoring control module for displaying the number of abnormal blade root bolts and controlling the running state of the blade of the wind generating set.
5. The system for monitoring the bolt breakage of the blade root of the wind generating set blade in real time according to the claim 4, wherein the monitoring control module comprises a brake controller and a display, wherein the brake controller is used for controlling the rotation of the blade of the wind generating set according to the instruction transmitted by the central processing unit; the display is used for displaying the number of the abnormal blade root bolts.
6. A real-time monitoring method for bolt breakage of a blade root of a wind generating set blade is characterized in that the monitoring system based on any one of claims 1 to 5 comprises the following steps:
collecting optical signals generated by each blade root bolt;
converting each optical signal to obtain a data signal;
and judging whether the corresponding blade root bolt is abnormal or not according to the obtained data signal.
7. The method for monitoring the bolt fracture of the blade root of the wind generating set blade in real time according to claim 6, wherein the monitoring method comprises the following steps: and counting the number of the abnormal blade root bolts, and controlling the operation of the blades of the wind generating set according to the counted number.
8. The method for monitoring the bolt fracture of the blade root of the wind generating set blade in real time according to the claim 7 is characterized in that the operation of the blade of the wind generating set is controlled according to the counted number, and the method comprises the following specific steps:
when the counted number is larger than or equal to a preset threshold value, controlling the blades of the wind generating set to stop working;
and when the counted number is smaller than a preset threshold value, controlling the blades of the wind generating set to continuously work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111358306.0A CN113883016A (en) | 2021-11-16 | 2021-11-16 | Real-time monitoring method and system for blade root bolt fracture of wind generating set blade |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111358306.0A CN113883016A (en) | 2021-11-16 | 2021-11-16 | Real-time monitoring method and system for blade root bolt fracture of wind generating set blade |
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| CN113883016A true CN113883016A (en) | 2022-01-04 |
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| CN202111358306.0A Pending CN113883016A (en) | 2021-11-16 | 2021-11-16 | Real-time monitoring method and system for blade root bolt fracture of wind generating set blade |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116517785A (en) * | 2023-04-06 | 2023-08-01 | 中广核全椒风力发电有限公司 | Monitoring system and monitoring method for monitoring breakage of blade bolt of wind turbine generator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015129493A (en) * | 2014-01-09 | 2015-07-16 | 株式会社日立製作所 | Abnormal degree determination system and method for wind power generator |
| CN108708833A (en) * | 2018-05-16 | 2018-10-26 | 浙江运达风电股份有限公司 | A kind of wind power generating set blade blade root bolt fracture method for real-time monitoring and system |
| CN112049761A (en) * | 2020-09-14 | 2020-12-08 | 南京风电科技有限公司 | Method and device for monitoring opening and closing degree of longitudinal flange of split tower of wind generating set |
| CN112267981A (en) * | 2020-11-12 | 2021-01-26 | 龙源（北京）风电工程技术有限公司 | Monitoring device and monitoring method for monitoring bolt loosening state and wind turbine generator |
| CN112834103A (en) * | 2019-11-22 | 2021-05-25 | 奥动新能源汽车科技有限公司 | Linkage monitoring system and method for monitoring bolt or nut loosening |
| CN112834102A (en) * | 2019-11-22 | 2021-05-25 | 奥动新能源汽车科技有限公司 | Optical fiber force sensing device and system and method for monitoring bolt or nut loosening |
| CN113218297A (en) * | 2021-04-01 | 2021-08-06 | 陕西中科启航科技有限公司 | Tower drum bolt safety monitoring device and monitoring method thereof |
-
2021
- 2021-11-16 CN CN202111358306.0A patent/CN113883016A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015129493A (en) * | 2014-01-09 | 2015-07-16 | 株式会社日立製作所 | Abnormal degree determination system and method for wind power generator |
| CN108708833A (en) * | 2018-05-16 | 2018-10-26 | 浙江运达风电股份有限公司 | A kind of wind power generating set blade blade root bolt fracture method for real-time monitoring and system |
| CN112834103A (en) * | 2019-11-22 | 2021-05-25 | 奥动新能源汽车科技有限公司 | Linkage monitoring system and method for monitoring bolt or nut loosening |
| CN112834102A (en) * | 2019-11-22 | 2021-05-25 | 奥动新能源汽车科技有限公司 | Optical fiber force sensing device and system and method for monitoring bolt or nut loosening |
| CN112049761A (en) * | 2020-09-14 | 2020-12-08 | 南京风电科技有限公司 | Method and device for monitoring opening and closing degree of longitudinal flange of split tower of wind generating set |
| CN112267981A (en) * | 2020-11-12 | 2021-01-26 | 龙源（北京）风电工程技术有限公司 | Monitoring device and monitoring method for monitoring bolt loosening state and wind turbine generator |
| CN113218297A (en) * | 2021-04-01 | 2021-08-06 | 陕西中科启航科技有限公司 | Tower drum bolt safety monitoring device and monitoring method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116517785A (en) * | 2023-04-06 | 2023-08-01 | 中广核全椒风力发电有限公司 | Monitoring system and monitoring method for monitoring breakage of blade bolt of wind turbine generator |
| CN116517785B (en) * | 2023-04-06 | 2024-05-10 | 中广核全椒风力发电有限公司 | Monitoring system and monitoring method for monitoring breakage of blade bolt of wind turbine generator |
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