CN202433018U - Tower drum measuring device of wind generating set and tower drum - Google Patents
Tower drum measuring device of wind generating set and tower drum Download PDFInfo
- Publication number
- CN202433018U CN202433018U CN2011205731772U CN201120573177U CN202433018U CN 202433018 U CN202433018 U CN 202433018U CN 2011205731772 U CN2011205731772 U CN 2011205731772U CN 201120573177 U CN201120573177 U CN 201120573177U CN 202433018 U CN202433018 U CN 202433018U
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- flange
- tower
- acceleration sensor
- wind turbine
- inclination
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- Expired - Lifetime
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- 230000001133 acceleration Effects 0.000 claims abstract description 59
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 21
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 21
- 241001330002 Bambuseae Species 0.000 claims description 21
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 21
- 239000011425 bamboo Substances 0.000 claims description 21
- 239000000725 suspension Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 description 4
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000006073 displacement reaction 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
- 238000012545 processing Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model provides a power drum measuring device of a wind generating set and a tower drum. The tower drum comprises a first connecting cylinder and a second connecting cylinder, wherein a first flange is arranged at the end part of the first connecting cylinder; a second flange is arranged at the end part of the second connecting cylinder; the first connecting cylinder is fixedly connected with the second connecting cylinder through the flanges; and the measuring device comprises an inclination acceleration sensor group fixedly arranged on the first flange through a first cantilever, wherein the inclination acceleration sensor group comprises an inclination sensor and an acceleration sensor and is arranged on a position of the end part on the first cantilever, which is away from the first flange. According to the technical scheme of the utility model, the inclination deformation of the tower drum is detected by the inclination sensor and the acceleration sensor which are arranged on the flanges, the accuracy of the inclination deformation measurement of the tower drum can be effectively improved and the cost is lower.
Description
Technical Field
The utility model relates to a wind turbine generator system tower section of thick bamboo measures the technique, especially relates to a wind turbine generator system tower section of thick bamboo measuring device and a tower section of thick bamboo.
Background
The tower barrel is a bearing part in the wind generating set and bears complex and variable loads comprising thrust, bending moment and torque, so that the tower barrel can generate certain-amplitude deformation such as swinging, twisting and the like in the running process of the wind generating set; in addition, the tower may be subject to material deformation, component failure, and foundation settlement, which may cause the tower to tilt. The normal operation of the wind generating set can be influenced by the overlarge inclination deformation of the tower, and safety accidents can be seriously caused, so that the inclination deformation of the tower needs to be measured in real time.
At present, when the inclination deformation of the tower drum is measured, a plurality of GPS receivers are usually installed on the tower drum, and the inclination deformation curve of the tower drum is drawn according to GPS measurement data, which is costly, and when the deformation of the tower drum is calculated, the characteristic of the nonlinear deformation of the tower drum is not considered, and the deformation of the tower drum is usually calculated based on a single inclination angle and rigid deformation, resulting in inaccurate calculation of the deformation curve of the tower drum. In addition, in the prior art, the inclination deformation of the tower drum is detected by arranging the inclination sensor on the tower drum, the characteristic of nonlinear deformation of the tower drum is not considered when the tower drum is measured, and the obtained tower drum deformation curve is inaccurate.
However, when a plurality of GPS are adopted to detect the inclination deformation of the tower barrel, the cost is high and the measurement is inaccurate; when the tilt sensor is used alone, measurement inaccuracies may also exist.
SUMMERY OF THE UTILITY MODEL
The utility model provides a wind turbine tower section of thick bamboo measuring device and a tower section of thick bamboo can effectively overcome the high-cost or inaccurate problem of measurement that exists when current a tower section of thick bamboo is measured, can effectively improve a tower section of thick bamboo measuring accuracy, and with low costs.
The utility model provides a wind turbine tower section of thick bamboo measuring device, a tower section of thick bamboo includes first connecting cylinder and second connecting cylinder, the tip of first connecting cylinder is provided with first flange, the tip of second connecting cylinder is provided with the second flange, first connecting cylinder and second connecting cylinder pass through flange fixed connection, measuring device includes:
the inclination acceleration sensor group is fixedly arranged on the first flange through a first cantilever and comprises an inclination sensor and an acceleration sensor, and the inclination acceleration sensor group is arranged at the end part position, far away from the first flange, of the first cantilever.
In the wind turbine tower cylinder measuring device, the acceleration sensor is arranged on the inclination sensor.
In the wind turbine tower cylinder measuring device, the acceleration sensor is arranged at a position close to the inclination sensor.
In the wind turbine tower measuring device, the first flange is adsorbed with a permanent magnet;
the first cantilever beam is fixed on the permanent magnet through a bolt.
The wind turbine tower measuring device may further include:
and the acceleration sensor is fixedly arranged on the second flange through a second cantilever.
The utility model provides a wind turbine tower, the tower includes first connecting cylinder and second connecting cylinder, the tip of first connecting cylinder is provided with first flange, the tip of second connecting cylinder is provided with second flange, first connecting cylinder and second connecting cylinder pass through flange fixed connection;
an inclined acceleration sensor group is fixedly arranged on the first flange through a first cantilever and comprises an inclined sensor and an acceleration sensor, and the position of the end part of the first flange, far away from the first cantilever, is arranged on the first cantilever.
In the wind turbine tower, the acceleration sensor is arranged on the inclination sensor.
In the wind turbine tower, the acceleration sensor is arranged at a position close to the inclination sensor.
In the tower barrel of the wind turbine generator, a permanent magnet is adsorbed on the first flange;
the first cantilever beam is fixed on the permanent magnet through a bolt.
In the tower barrel of the wind turbine generator, the second flange is fixedly provided with the acceleration sensor through the second cantilever.
The utility model provides a wind turbine tower cylinder measuring device and a tower cylinder, through setting up inclination sensor and acceleration sensor at the flange department of a tower cylinder, can compromise tower cylinder slope and nonlinear deformation simultaneously, improve the accuracy of a tower cylinder slope deformation measurement; meanwhile, the inclination sensor and the acceleration sensor are arranged on the flange, so that the test cost is low, and the measurement requirement of the inclination deformation of the tower can be effectively met; the utility model discloses among the technical scheme, through set up acceleration sensor on two flanges respectively, can further take place to warp to the flange and measure, can avoid flange joint bad and lead to a tower section of thick bamboo to incline and the trouble that collapses.
Drawings
Fig. 1 is a schematic structural view of a wind turbine tower measuring device provided in an embodiment of the present invention;
FIG. 2 is an enlarged view of the mounting structure of the measuring device at A in FIG. 1;
fig. 3 is a schematic structural view of the embodiment of the present invention when the flange is opened.
Detailed Description
Fig. 1 is a schematic structural view of a wind turbine tower measuring device provided in an embodiment of the present invention; fig. 2 is an enlarged schematic view of the mounting structure of the measuring device at a in fig. 1. As shown in fig. 1-2, in the present embodiment, the tower barrel 1 is a bearing component in a wind turbine generator system, and includes a first connecting barrel 11 and a second connecting barrel 12, two opposite ends of the first connecting barrel 11 and the second connecting barrel 12 are respectively provided with a first flange 21 and a second flange 22, the first connecting barrel 11 and the second connecting barrel 12 are connected and fixed through the first flange 21 and the second flange 22 to form a tower barrel, and the first flange 21 and the second flange 22 are connected through a bolt 23; the first flange 21 is fixedly provided with an inclination acceleration sensor group 4 through the first cantilever beam 31, the inclination acceleration sensor group 4 comprises an inclination sensor 41 and a first acceleration sensor 42 which are both arranged at the end position of the first cantilever beam 31 far away from the first flange 21, and the first acceleration sensor 42 is fixedly arranged on the inclination sensor 41. In the embodiment, the inclination acceleration sensor group is arranged on the flange, so that the inclination of the tower barrel can be measured by using the inclination sensor, and the deformation of the tower barrel can be measured by using the inclination sensor and the acceleration sensor, so that the accuracy of measuring the inclination deformation of the tower barrel can be effectively improved; in addition, the inclined acceleration sensor group is arranged by using the cantilever, so that the installation of the inclined acceleration sensor group is facilitated, and meanwhile, the length of the cantilever can be utilized to improve the measurement accuracy of the inclined sensor and the acceleration sensor.
In this embodiment, as shown in fig. 2, the permanent magnet 5 is attached to the first flange 21, and the first cantilever 31 may be fixed to the permanent magnet 5 by a bolt, so that the cantilever can be conveniently mounted, and the convenience of mounting the cantilever is improved.
As can be understood by those skilled in the art, in practical application, the cantilever beam with a proper length can be arranged according to requirements, so that the response capability of the sensor can be effectively improved while the sensor arranged at the end part is ensured to be fixed relative to the tower drum, the measurement requirement of the inclination deformation of the tower drum is improved, and the accuracy and the reliability of the measurement of the inclination deformation of the tower drum are improved.
In this embodiment, as shown in fig. 2, the second flange 22 is fixedly provided with the second acceleration sensor 43 through the second cantilever beam 32, so that whether the first flange 21 and the second flange 22 are opened or closed can be determined through the measurement values of the first acceleration sensor 42 and the second acceleration sensor 43, and thus, whether the bolts 23 fixing the first flange 21 and the second flange 22 fail or not can be determined, and the tower inclination or collapse caused by the failure of the bolts 23 can be avoided.
In this embodiment, it is determined whether the first flange 21 and the second flange 22 are deformed badly, such as open-close, or not, specifically, it may be determined according to a component in the axial direction of the tower from among the measurement values of the acceleration sensors, and when the vertical component difference measured by the first acceleration sensor 42 and the second acceleration sensor 43 is large, it may be determined that the first flange 21 and the second flange 22 are deformed badly, such as open-close, or the like, and the bolt 23 may fail.
Fig. 3 is a schematic structural view of the embodiment of the present invention when the flange is opened. As shown in fig. 3, when the first flange 21 and the second flange 22 are opened, it is indicated that the bolts 23 connecting the first flange 21 and the second flange 22 may be deformed, and the bolts 23 may fail, at this time, the opening and closing angle of the first flange 21 and the second flange 22 may be determined by the acceleration values detected by the first acceleration sensor 42 and the second acceleration sensor 43, so as to determine whether the bolts fail, and inform the relevant personnel of processing in time, so as to avoid the tower inclination or collapse caused by the bolt failure. In particular, the opening and closing angle α at time tgap(t) is calculated using the following formula:
in the formula, a (t) is a vertical component difference value of measurement values of the first acceleration sensor and the second acceleration sensor at the time t, ω is a frequency of acceleration amplitude fluctuation, and can be obtained by performing spectrum analysis on the acceleration measurement values, and L is the length of the cantilever beam.
It is right to the technical scheme of the utility model have better understanding, it is right below the embodiment of the utility model provides a slope deformation principle through slope acceleration sensor group measures a tower section of thick bamboo explains.
As will be appreciated by those skilled in the art, the tilt deformation of the tower is performed using the tilt sensor and the acceleration sensor described aboveDuring measurement, the deformation amount of the tower can be determined according to the measured values at multiple moments, specifically, the tower deformation can be decomposed into static deformation, quasi-static deformation and dynamic deformation, and the inclination deformation of the tower can be assumed as X (h, t) ═ m + n Δ t) hr+chscos ω Δ t, where Δ t is t-t0, the time increment for measurement time t relative to the measurement cycle start time t 0; x (h, t) is a deformation equation of the tower barrel, namely the horizontal displacement of the height h of the tower barrel at the time t; (m + n.DELTA.t) hrIs a static quasi-static deformation equation of the tower, chscos omega delta t is a dynamic deformation equation of the tower; and m, n, c, omega, r and s are parameters describing deformation of the tower barrel and basically keep stable in a measuring period. T0 may be selected as the time when the acceleration sensor reaches a maximum value over a period of time.
Further, by performing derivation on X (h, t), a relation between the acceleration of the tower and the height of the tower can be obtained, that is, an acceleration equation:
wherein,
the acceleration of the tower at the measuring time t and height h is indicated.
In addition, because the deformation curve of the tower is a coherent curve, the following equation can be satisfied for the inclination angles at different heights of the tower:
Thus, if optionally three different times t1, t2, t3 are taken with respect to a measurement cycle starting at time t0, the measured accelerations and tilt angles at the different times are brought into the above equation
And tan alpha (h, t), the deformation quantities m, n, c, omega, r and s in X (h, t) can be determined, and thus the inclined deformation equation X (h, t) of the tower can be obtained. The detailed calculation process is not described herein.
After the tower body deformation is obtained, the tower barrel inclination caused by the opening and closing angle of the flange is considered, and the total deformation X is obtainedtotal(h, t) the following formula can be used:
wherein H is the total height of the tower, and H1 is the installation height of the acceleration sensor. It should be noted that, actual wind turbine tower section of thick bamboo can constitute by 2 festivals or more than 2 festivals connecting cylinder, the embodiment of the utility model discloses not be restricted to the condition of only 2 festivals connecting cylinder, can be applied to the tower section of thick bamboo that constitutes by more than 2 festivals connecting cylinder through similar derivation, and no longer describe here.
Furthermore, the embodiment of the utility model provides a still provide a wind turbine tower section of thick bamboo, this wind turbine tower section of thick bamboo includes the aforesaid the embodiment of the utility model provides a measuring device, concrete structure can refer to the explanation of above-mentioned figure 1-3 embodiments, no longer gives unnecessary details here.
The embodiment of the utility model provides an among the applicable various types of aerogenerator, as aerogenerator's support basis, in the wind turbine generator system working process, the accessible is implemented and is come to detect tower section of thick bamboo slope deformation condition according to the sensor that sets up on the tower section of thick bamboo, can effectively improve the stability and the reliability of wind turbine generator system operation.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a wind turbine tower section of thick bamboo measuring device, a tower section of thick bamboo includes first connecting cylinder and second connecting cylinder, the tip of first connecting cylinder is provided with first flange, the tip of second connecting cylinder is provided with the second flange, first connecting cylinder and second connecting cylinder pass through flange fixed connection, its characterized in that, measuring device includes:
the inclination acceleration sensor group is fixedly arranged on the first flange through a first cantilever and comprises an inclination sensor and an acceleration sensor, and the inclination acceleration sensor group is arranged at the end part position, far away from the first flange, of the first cantilever.
2. The wind turbine tower measuring device of claim 1, wherein the acceleration sensor is disposed on the tilt sensor.
3. The wind turbine tower measuring device of claim 1, wherein the acceleration sensor is disposed proximate to the tilt sensor.
4. The wind turbine tower measuring device of claim 1, wherein a permanent magnet is adsorbed on the first flange;
the first cantilever beam is fixed on the permanent magnet through a bolt.
5. The wind turbine tower measuring device of claim 1, further comprising:
and the acceleration sensor is fixedly arranged on the second flange through a second cantilever.
6. The tower barrel of the wind turbine generator is characterized by comprising a first connecting barrel and a second connecting barrel, wherein a first flange is arranged at the end part of the first connecting barrel, a second flange is arranged at the end part of the second connecting barrel, and the first connecting barrel and the second connecting barrel are fixedly connected through the flanges;
an inclined acceleration sensor group is fixedly arranged on the first flange through a first cantilever and comprises an inclined sensor and an acceleration sensor, and the position of the end part of the first flange, far away from the first cantilever, is arranged on the first cantilever.
7. The wind turbine tower of claim 6, wherein the acceleration sensor is disposed on the tilt sensor.
8. The wind turbine tower of claim 6, wherein the acceleration sensor is disposed proximate to the tilt sensor.
9. The wind turbine tower of claim 6, wherein a permanent magnet is attracted to the first flange;
the first cantilever beam is fixed on the permanent magnet through a bolt.
10. The wind turbine tower of claim 6, wherein an acceleration sensor is fixedly mounted on the second flange via a second suspension arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205731772U CN202433018U (en) | 2011-12-31 | 2011-12-31 | Tower drum measuring device of wind generating set and tower drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205731772U CN202433018U (en) | 2011-12-31 | 2011-12-31 | Tower drum measuring device of wind generating set and tower drum |
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| Publication Number | Publication Date |
|---|---|
| CN202433018U true CN202433018U (en) | 2012-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205731772U Expired - Lifetime CN202433018U (en) | 2011-12-31 | 2011-12-31 | Tower drum measuring device of wind generating set and tower drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202433018U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243743A (en) * | 2013-05-21 | 2013-08-14 | 福州大学 | Quantitative detection method of safe reliability of tower foundation of wind generator |
| CN104142229A (en) * | 2013-05-10 | 2014-11-12 | 中科风电(北京)有限公司 | Online wind turbine generator system flange bolt monitoring and failure diagnosis system |
| CN104963928A (en) * | 2015-07-22 | 2015-10-07 | 李圣用 | System for reducing wind driven generator bolt scheduled maintenance frequency |
| CN106248049A (en) * | 2016-08-31 | 2016-12-21 | 上海应谱科技有限公司 | Wind turbines tower foundation uneven settlement off-line checking method and on-line monitoring method |
| CN106640546A (en) * | 2016-10-20 | 2017-05-10 | 安徽容知日新科技股份有限公司 | System and method for monitoring tower drum of wind power generation equipment |
| CN114295105A (en) * | 2021-12-30 | 2022-04-08 | 赤峰华源新力科技有限公司 | Novel measure wind power tower cylinder inclination device |
-
2011
- 2011-12-31 CN CN2011205731772U patent/CN202433018U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142229A (en) * | 2013-05-10 | 2014-11-12 | 中科风电(北京)有限公司 | Online wind turbine generator system flange bolt monitoring and failure diagnosis system |
| CN103243743A (en) * | 2013-05-21 | 2013-08-14 | 福州大学 | Quantitative detection method of safe reliability of tower foundation of wind generator |
| CN104963928A (en) * | 2015-07-22 | 2015-10-07 | 李圣用 | System for reducing wind driven generator bolt scheduled maintenance frequency |
| CN106248049A (en) * | 2016-08-31 | 2016-12-21 | 上海应谱科技有限公司 | Wind turbines tower foundation uneven settlement off-line checking method and on-line monitoring method |
| CN106640546A (en) * | 2016-10-20 | 2017-05-10 | 安徽容知日新科技股份有限公司 | System and method for monitoring tower drum of wind power generation equipment |
| CN106640546B (en) * | 2016-10-20 | 2019-01-22 | 安徽容知日新科技股份有限公司 | The system and method that the tower of a kind of pair of wind power plant is monitored |
| CN114295105A (en) * | 2021-12-30 | 2022-04-08 | 赤峰华源新力科技有限公司 | Novel measure wind power tower cylinder inclination device |
| CN114295105B (en) * | 2021-12-30 | 2024-05-28 | 赤峰华源新力科技有限公司 | Novel measure wind-powered electricity generation tower section of thick bamboo inclination device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHIFENG HUAYUAN XINLI TECHNOLOGY CO., LTD. Free format text: FORMER NAME: CHIFENG BAIRUN TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 024005 room 217, Aoxiang Fortune Tower, Songshan District, the Inner Mongolia Autonomous Region, Chifeng Patentee after: Chifeng Huayuan New Power Technology Co., Ltd. Address before: 024005 Aoxiang Fortune Tower, Songshan District, the Inner Mongolia Autonomous Region, Chifeng 409 Patentee before: Chifeng Bairun Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |