CN210239914U - Wind turbine blade on-line monitoring system - Google Patents
Wind turbine blade on-line monitoring system Download PDFInfo
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- CN210239914U CN210239914U CN201920123540.7U CN201920123540U CN210239914U CN 210239914 U CN210239914 U CN 210239914U CN 201920123540 U CN201920123540 U CN 201920123540U CN 210239914 U CN210239914 U CN 210239914U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/30—Wind power
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Abstract
The utility model relates to a wind turbine generator system blade on-line monitoring system belongs to the wind power generation field. The utility model comprises a laser sensor holder, a laser sensor, a data acquisition device, a sensor power supply output interface, a tower footing optical fiber reserved interface, an optical fiber and a data storage and analysis device; the laser sensor is surrounded on the outer wall of the tower barrel through a laser sensor holder, and the height from the laser sensor to the ground is 0.5-2 m higher than the height from the blade tip position to the ground when the blade vertically faces downwards; the data acquisition equipment is connected with the laser sensor, is connected with the tower footing optical fiber reserved interface and is connected with the data storage and analysis device through an optical fiber; the sensor power supply output interface is connected with the laser sensor. The system is built, so that the icing, cracking, breaking, inconsistent blade angle and the like of the blades can be diagnosed, the online monitoring and analyzing functions of the blades are realized, the accidents such as blade breaking and the like are avoided, and the safe operation of the wind turbine generator is guaranteed.
Description
Technical Field
The utility model relates to a wind turbine generator system blade on-line monitoring system belongs to the wind power generation field.
Background
Under the drive of the national policy for vigorously developing wind power, the whole wind power industry in China develops at a high speed in recent years, however, the rapid development also brings many problems because the research of the wind power key technology in China starts late and the whole machine design and manufacture technology depends on abroad. The wind power generation technology which is continuously developed and the installed capacity which is continuously increased enable the proportion of wind power which is taken as a novel energy source in the global energy structure to be higher and higher. However, the rapid growth of wind power causes the wind power industry to face the problem of increasing the operation and maintenance cost of wind power generation sets, the operation and maintenance cost of onshore wind power generation sets accounts for 10% -15% of the actual electricity price, and the operation and maintenance cost of offshore wind power generation sets accounts for 25% -30% of the total cost. The fan blade is one of the core components of the wind driven generator, accounts for about 15% -20% of the total cost of the fan, and the operation health state of the fan blade is directly related to the overall performance of the fan and the production benefits of enterprises. However, in the operation process of the existing wind generating set at home and abroad, the failure of the fan blade is frequent. The foundation is that on one hand, the structure of the fan blade is limited: the fan blade mainly comprises a shell, a web plate and other parts, wherein the shell part of the fan blade is formed by gluing two half shells and has a more complicated aerodynamic shape, and the blade shell is supported by the web plate and bears bending load on the blade. The glued structure leads to lower strength and poor deformation resistance of the blade, such as Chinese patent with application number of 201610169477.1; on the other hand, the environment of the wind turbine generator is severe: the weather factors such as lightning stroke, strong wind, cold, icing and the like can cause the fatigue of the blade gluing material and the damage of the blade structure, even cause the blade to fall off, and can further cause serious accidents such as tower falling.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a wind turbine generator system blade on-line monitoring system, can realize diagnostic function such as blade icing, blade fracture, paddle angle nonconformity to show monitoring data and analysis result in real time.
The utility model provides a technical scheme that above-mentioned problem adopted is: an online monitoring system for blades of a wind turbine generator is characterized by comprising a laser sensor holder, a laser sensor, data acquisition equipment, a sensor power supply output interface, a tower footing optical fiber reserved interface, an optical fiber and a data storage and analysis device; the laser sensor is surrounded on the outer wall of the tower barrel through a laser sensor holder, and the height from the laser sensor to the ground is 0.5-2 m higher than the height from the blade tip position to the ground when the blade vertically faces downwards; the data acquisition equipment is connected with the laser sensor, is connected with the tower footing optical fiber reserved interface and is connected with the data storage and analysis device through an optical fiber; and the sensor power supply output interface is connected with the laser sensor.
Furthermore, 8 laser sensors are mounted on the laser sensor retainer, and the laser sensors are uniformly and circumferentially arranged on the outer wall of the tower barrel.
Further, the height of the laser sensor from the ground is higher than 1 meter of the position of the blade tip when the blade rotates to the vertically downward direction.
The working method of the wind turbine blade online monitoring system comprises the following steps:
(1) the laser sensor collects the distance between the blade tip and the tower barrel when the blade rotates vertically downwards, and data are transmitted to a central control room or a regional centralized control room in real time by utilizing a tower footing optical fiber reserved interface and a network architecture;
(2) the central control room or the regional centralized control room is provided with a database server for receiving and storing the real-time data transmitted by each fan;
(3) a central control room or a regional centralized control center is provided with a data analysis server, analyzes the data acquired in real time, and realizes monitoring analysis and diagnosis of the blades by calculating the distance difference between the three blades and a tower barrel in the process of one rotation period; and a display system is configured to display the original data and the analysis result acquired by the monitoring system.
Further, the collected data and the analysis result are displayed in a webpage form.
Compared with the prior art, the utility model, have following advantage and effect:
(1) monitoring the distance between the blade and the tower barrel in real time, and realizing deformation analysis in the rotating process of the blade;
(2) the trend tracking of the blade cracking trend is realized by comparing the distances from 3 blades to the tower in one rotation period;
(3) by comparing distances, blade icing, cracking and fracture diagnosis are realized, the on-line monitoring and analysis functions of the blades are realized, accidents such as blade fracture are avoided, and the safe operation of the wind turbine generator is guaranteed.
Drawings
Fig. 1 is the utility model discloses wind turbine generator system blade on-line monitoring system's overall structure schematic diagram.
In the figure: the device comprises a laser sensor holder 1, a laser sensor 2, data acquisition equipment 3, a sensor power supply output interface 4, a tower footing optical fiber reserved interface 5, an optical fiber 6, a data storage and analysis device 7, a tower 8 and blades 9.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples are given.
Referring to fig. 1, an online monitoring system for a wind turbine blade comprises a laser sensor holder 1, a laser sensor 2, a data acquisition device 3, a sensor power supply output interface 4, a tower footing optical fiber reserved interface 5, an optical fiber 6 and a data storage and analysis device 7; the laser sensor 2 surrounds the outer wall of the tower barrel 8 through the laser sensor retainer 1, and the height from the laser sensor 2 to the ground is 0.5-2 m higher than that from the blade tip position to the ground when the blade 9 is vertically downward; the data acquisition equipment 3 is connected with the laser sensor 2, and the data acquisition equipment 3 is connected with the tower footing optical fiber reserved interface 5 and is connected with the data storage and analysis device 7 through the optical fiber 6; the sensor power supply output interface 4 is connected with the laser sensor 2.
In this embodiment, 8 laser sensors 2 are installed on the laser sensor holder 1, and the laser sensors 2 are uniformly and circumferentially arranged on the outer wall of the tower tube 8.
In this embodiment, the height of the laser sensor 2 from the ground is higher than 1 meter of the blade tip position when the blade 9 rotates to the vertically downward direction.
The working method of the wind turbine blade online monitoring system comprises the following steps:
(1) the laser sensor 2 collects the distance between the blade tip and the tower barrel 8 when the blade 9 rotates vertically downwards, collected data are transmitted to a central control room or a regional centralized control room in real time through the tower footing optical fiber reserved interface 5 by utilizing the pre-embedded tower footing optical fiber reserved interface 5, and power is supplied to the laser sensor 2 by the tower footing control cabinet;
(2) the central control room or the regional centralized control room is provided with a database server for receiving and storing the real-time data transmitted by each fan;
(3) a central control room or a regional centralized control center is provided with a data analysis server, analyzes the data acquired in real time, and realizes monitoring analysis and diagnosis of the blades 9 by calculating the distance difference between the three blades 9 and the tower 8 in the process of one rotation period; and a display system is configured to display the original data and the analysis result acquired by the monitoring system.
In this embodiment, the collected data and the analysis result are displayed in a web page form.
Although the present invention has been described with reference to the above embodiments, it should not be construed as being limited to the scope of the present invention, and any modifications and alterations made by those skilled in the art without departing from the spirit and scope of the present invention should fall within the scope of the present invention.
Claims (3)
1. An online monitoring system for blades of a wind turbine generator is characterized by comprising a laser sensor holder, a laser sensor, data acquisition equipment, a sensor power supply output interface, a tower footing optical fiber reserved interface, an optical fiber and a data storage and analysis device; the laser sensor is surrounded on the outer wall of the tower barrel through a laser sensor holder, and the height from the laser sensor to the ground is 0.5-2 m higher than the height from the blade tip position to the ground when the blade vertically faces downwards; the data acquisition equipment is connected with the laser sensor, is connected with the tower footing optical fiber reserved interface and is connected with the data storage and analysis device through an optical fiber; and the sensor power supply output interface is connected with the laser sensor.
2. The wind turbine blade on-line monitoring system according to claim 1, wherein 8 laser sensors are mounted on the laser sensor holder, and the laser sensors are uniformly and circumferentially arranged on the outer wall of the tower.
3. The online wind turbine blade monitoring system according to claim 2, wherein the height of the laser sensor from the ground is higher than 1 m of the position of the blade tip when the blade rotates to the vertically downward direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920123540.7U CN210239914U (en) | 2019-01-24 | 2019-01-24 | Wind turbine blade on-line monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920123540.7U CN210239914U (en) | 2019-01-24 | 2019-01-24 | Wind turbine blade on-line monitoring system |
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| CN210239914U true CN210239914U (en) | 2020-04-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751199A (en) * | 2019-01-24 | 2019-05-14 | 华电电力科学研究院有限公司 | A kind of wind power generation unit blade on-line monitoring system and its working method |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751199A (en) * | 2019-01-24 | 2019-05-14 | 华电电力科学研究院有限公司 | A kind of wind power generation unit blade on-line monitoring system and its working method |
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