CN203908712U - Online stress-monitoring system used for power line tower - Google Patents
Online stress-monitoring system used for power line tower Download PDFInfo
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- CN203908712U CN203908712U CN201420272210.1U CN201420272210U CN203908712U CN 203908712 U CN203908712 U CN 203908712U CN 201420272210 U CN201420272210 U CN 201420272210U CN 203908712 U CN203908712 U CN 203908712U
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- transmission line
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 104
- 230000005540 biological transmission Effects 0.000 claims description 67
- 229910052742 iron Inorganic materials 0.000 claims description 53
- 239000013307 optical fiber Substances 0.000 claims description 35
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000013500 data storage Methods 0.000 claims description 6
- 210000000352 storage cell Anatomy 0.000 claims description 6
- 230000005611 electricity Effects 0.000 description 6
- 238000004088 simulation Methods 0.000 description 6
- 238000007726 management method Methods 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013433 optimization analysis Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Testing Or Calibration Of Command Recording Devices (AREA)
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Abstract
The utility model discloses an online stress-monitoring system used for a power line tower. The online stress-monitoring system includes a field intelligent monitoring terminal and a 3G unit connected with each other through an RS485 bus. The 3G unit is connected with a power line status monitoring agent device and a monitoring center successively. The online stress-monitoring system realizes online monitoring of the magnitude of stress of the power line tower.
Description
Technical field
The utility model belongs to transmission line of electricity Stress On-Line equipment technical field, is specifically related to a kind of iron tower of power transmission line Stress On-Line system.
Background technology
Iron tower of power transmission line is owing to bearing for a long time the effect of ice coating load, wind load, loosening these external environment load of column foot, this has a great impact the safety of transmission line of electricity, reliability service, especially in the situation that the wire of electric power pylon both sides, ground wire ice cover are different, can cause iron tower of power transmission line to bear unbalanced tensile force and run-off the straight, when problem is serious, will cause the broken string of falling tower, not only can bring huge economic loss to society, and can badly influence daily life.
Along with continuous upgrading and the development of electric system, transmission line of electricity falls the frequent generation of tower and broken string accident, has had a strong impact on the safe operation of electrical network, and transmission line of electricity has been subject to destruction on a large scale.In order to guarantee the safe operation of electrical network, will carry out on-line monitoring to the distribution situation of iron tower of power transmission line stress, obtain the position that each rod member of iron tower of power transmission line is subject to stress maximum, iron tower of power transmission line is subject to stress situation to feed back in time O&M personnel the most at last.
Utility model content
The purpose of this utility model is to provide a kind of iron tower of power transmission line Stress On-Line system, can carry out Real-Time Monitoring to the suffered stress of iron tower of power transmission line.
The technical scheme that the utility model adopts is, iron tower of power transmission line Stress On-Line system, include the site intelligent monitoring terminal and the 3G unit that by RS485 bus, connect, 3G unit is connected with power transmission line state monitoring agent device, Surveillance center successively.
Feature of the present utility model is also,
Site intelligent monitoring terminal, includes microprocessor, and microprocessor is connected with data storage cell by parallel port, and microprocessor is connected with A/D converter by serial port, and microprocessor is connected with power supply by wire; A/D converter is connected with optical fiber stress sensor module, Temperature Humidity Sensor and wind direction and wind velocity sensor by 485 order wires respectively; Microprocessor is connected with 3G unit by serial ports.
That 3G unit adopts is TD-SCDMA.
Optical fiber stress sensor module is comprised of a plurality of optical fiber stress sensors.
What optical fiber stress sensor adopted is integrated wireless optical fiber stress sensor.
What power supply adopted is 82AB2951 power supply.
What Temperature Humidity Sensor adopted is SHT11 Temperature Humidity Sensor or SHT71 Temperature Humidity Sensor.
What wind direction and wind velocity sensor adopted is ultrasonic type wind direction and wind velocity sensor.
What microprocessor adopted is MSP430 single-chip microcomputer.
The beneficial effects of the utility model are:
1. in the utility model iron tower of power transmission line Stress On-Line system, adopt optical fiber stress sensor, optical fiber stress sensor can be monitored iron tower of power transmission line strain on elastic matrix while being subject to stress, and has the highly sensitive and higher feature of precision;
2. the data that the utility model iron tower of power transmission line Stress On-Line system obtains site intelligent monitoring terminal are sent to monitoring center by 3G unit, by the expert software in monitoring center, data are integrated to processing, if steel tower stress analysis exceeds the yield strength of material, the utility model iron tower of power transmission line Stress On-Line system can be notified staff in time by expert software interface display, audible alarm, GSM network mobile phone SMS alarm lamp mode, so that staff takes corresponding measure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model iron tower of power transmission line Stress On-Line system;
Fig. 2 is ice covering thickness and the stress relation curve map that adopts the utility model iron tower of power transmission line Stress On-Line system to obtain.
In figure, 1. optical fiber stress sensor, 2. power transmission line state monitoring agent device, 3. data storage cell, 4.3G unit, 5. Surveillance center, 6. site intelligent monitoring terminal, 7. Temperature Humidity Sensor, 8. wind direction and wind velocity sensor, 9. microprocessor, 10. power supply, 11.A/D converter, 12. optical fiber stress sensor modules.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
The utility model iron tower of power transmission line Stress On-Line system, its structure as shown in Figure 1, include the site intelligent monitoring terminal 6 (site intelligent monitoring terminal is called for short again CMD) and the 3G unit 4 that by RS485 bus, connect, 3G unit 4 is connected with power transmission line state monitoring agent device 2 (be called for short not only CMA), Surveillance center 5 (Surveillance center but also be called for short CAG) successively.
Site intelligent monitoring terminal 6, as shown in Figure 1, include microprocessor 9 (microprocessor is called for short again MCU), microprocessor 9 is connected with data storage cell 3 by parallel port, microprocessor 9 is connected with A/D converter 11 by serial port, microprocessor 9 is connected with power supply 10 by wire, and A/D converter 11 is connected with optical fiber stress sensor module 12, Temperature Humidity Sensor 7 and wind direction and wind velocity sensor 8 by 485 order wires respectively; Microprocessor 9 is connected with 3G unit 4 by serial ports.
Optical fiber stress sensor module 12 is comprised of a plurality of optical fiber stress sensors 1; Optical fiber stress sensor 1 is provided with three; What optical fiber stress sensor 1 adopted is integrated wireless optical fiber stress sensor.
That 3G unit 4 adopts is TD-SCDMA.
What power supply 10 adopted is 82AB2951 power supply.
It is the Temperature Humidity Sensor of SHT11/SHT71 that Temperature Humidity Sensor 7 adopts.
What wind direction and wind velocity sensor 8 adopted is ultrasonic type wind direction and wind velocity sensor.
What microprocessor 9 adopted is MSP430 single-chip microcomputer.
In the process of using, optical fiber stress sensor module 12, Temperature Humidity Sensor 14 and wind direction and wind velocity sensor 15 are all arranged on iron tower of power transmission line and bear ice coating load, these external environments of wind load affect on the tower head rod member position (tower head) that frequency is higher.
The effect of each parts in the utility model iron tower of power transmission line Stress On-Line system:
Optical fiber stress sensor 1, Temperature Humidity Sensor 14 and wind direction and wind velocity sensor 15 are installed on the tower head rod member position of iron tower of power transmission line, for monitoring corresponding data, include stress value, humiture value and air speed value that rod member bears.
A plurality of optical fiber stress sensors 1 in optical fiber stress sensor module 12 obtain by monitoring the stress value that rod member bears and change stress simulation signal into, and stress simulation signal transfers to A/D converter 11 by 485 order wires.
A/D modular converter 11 is converted to stress digital signal by the stress simulation signal receiving.
Microprocessor 9 is the intrasystem core components of the utility model iron tower of power transmission line Stress On-Line, for processing in real time a large amount of data;
Data storage cell 3 can be realized high-capacity flash memory 512K, for storing the state of iron tower of power transmission line Stress On-Line system operation and the data message monitoring;
3G unit module 4 is for sending the current data message monitoring of iron tower of power transmission line Stress On-Line system and receiving 5 orders from Surveillance center, and the collecting unit data message form of taking in 3G unit module 4 is specifically shown in Table 1:
Table 1 collecting unit data message form
Power supply 10 is used to the power supply of microprocessor 9;
Surveillance center 5 integrates processing for the Monitoring Data that monitoring is obtained, to be delivered to project management system and notify staff to take in time certain measure.
Power transmission line state monitoring agent device 2, the site intelligent monitoring terminal 6 on management in subrange and collaborative all kinds of transmission lines of electricity, collects the Monitoring Data that accesses all kinds of site intelligent monitoring terminals 6, and Bing Yu Surveillance center 5 carries out secure two-way data communication; In addition, Surveillance center 5 can be connected on project management system (being called for short again PMS), the data that now receive are passed in project management system and further process, and the basic concepts of project management system are to use relevant method for optimization analysis, realize on-line monitoring system allomeric function and improve.
The course of work of the utility model iron tower of power transmission line Stress On-Line system is as follows:
The stress value that the rod member that optical fiber stress sensor module 12, Temperature Humidity Sensor 14 and wind direction and wind velocity sensor 15 obtain monitoring respectively bears, humiture value and air speed value pass to A/D converter 11 through 485 order wires respectively; By the A/D conversion 11 stress simulation signals that the rod member obtaining is born, be converted to the stress digital signal that rod member bears and send to microprocessor 9; The stress digital signal that the rod member that data storage cell 3 receives microprocessor 9 bears is stored, by power supply 10, give microprocessor 9 power supplies during this period, the stress simulation signal that rod member after microprocessor 9 is processed bears is sent to power transmission line state monitoring agent device 2 by 3G unit 4, by power transmission line state monitoring agent device 2, be delivered to monitoring center 5, monitoring center 5 notifies staff to take in time corresponding measure.
The computing method of the monitoring mechanism of optical fiber stress sensor 1 and iron tower of power transmission line load are as follows:
When iron tower of power transmission line bears dynamic loads, elastic body upper and lower surface strain side-play amount equal and opposite in direction and the opposite direction of the optical fiber stress sensor 1 that iron tower of power transmission line moment of flexure that upper member bears causes, employing is to 2 methods that foil gauge measurement result is averaged on the elastic matrix of optical fiber stress sensor 1, can effectively reduce the measuring error that unbalance loading causes, the relation of stress and strain is shown below:
σ＝E(ε
1+ε
2)/2 (1)；
In formula (1), the stress that σ is elastic matrix, unit is MPa; E is elastic modulus, and unit is N/mm
2; ε
1, ε
2for the strain of elastic matrix, unit is mm/m;
Iron tower of power transmission line is bearing the effect of transmission pressure icing weight and wind load always, its unit length icing weight Q
band iron tower structure wind load W implements according to following algorithm respectively;
Q
b＝27.73b(b+d)×10
-3 (2)；
W＝β
zμ
sμ
zw
0F (3)；
In formula (2), b-transmission pressure ice covering thickness, unit: mm; D-transmission pressure external diameter, unit: mm;
In formula (3), w
0-fundamental wind pressure, unit: kN/m
2; β
z-blast is adjusted coefficient; μ
s-iron tower structure wind carrier model coefficient; μ
z-height variation coefficient of wind pressure; F-iron tower structure is perpendicular to the projected area of wind direction, unit: m
2;
Wherein, stress σ, ice covering thickness b are the data that obtained by on-line monitoring system of the present utility model, and other data can draw by tabling look-up and calculating.
Optical fiber stress sensor 1 is surveyed stress principle and is: utilize uv-exposure technology in fiber cores, to cause that the cyclical variation of refractive index forms, the stress distribution situation that on iron tower of power transmission line, each rod member bears is depended in the installation site of optical fiber stress sensor 1.
In order to verify the measurement performance of optical fiber stress sensor 1 in the utility model iron tower of power transmission line Stress On-Line system, by ANSYS simulation software, set up iron tower of power transmission line finite element model, and to be chosen at wind speed be that the scope of transmission pressure ice covering thickness under 25m/s, environment temperature-15 ℃ condition is 10mm～60mm, then iron tower of power transmission line model is carried out to nonlinear static analysis, corresponding maximum stress and the relation of ice covering thickness under different icing conditions in the iron tower of power transmission line rod member (being exactly the minimum unit that forms steel tower) of ANSYS simulation analysis and optical fiber stress sensor 1 on-line monitoring, as shown in Figure 2, in optical fiber stress sensor 1, catoptrical wavelength is to temperature, stress and strain is very responsive, when the elastic body of optical fiber stress sensor 1 is under pressure, there is strain in optical fiber together with elastic body, cause the peak wavelength drift of fiber reflection light, by the tolerance of wavelength shift is realized temperature, the sensing of stress and strain, utilize the iron tower of power transmission line stress of ANSYS simulation software analysis and the relation of ice covering thickness, in Table 2:
The relation of table 2 iron tower of power transmission line stress and ice covering thickness
By ANSYS simulation software, analyze the stress intensity of iron tower of power transmission line, as shown in table 2, can analyze thus: along with the continuous increase of ice covering thickness on transmission pressure, the stress that iron tower of power transmission line bears also constantly increases; If ice covering thickness continue to increase on transmission pressure, just likely cause that the stress that iron tower of power transmission line bears exceeds its permissible stress, make the iron tower of power transmission line phenomenon that collapses.
The utility model iron tower of power transmission line Stress On-Line system is for on-line monitoring and the data analysis of each rod member stress distribution situation of iron tower of power transmission line, the stress that steel tower in transmission line of electricity is born remains in the state range of safety, stable operation, to society, has reduced certain economic loss.
Claims (9)
1. iron tower of power transmission line Stress On-Line system, it is characterized in that, include the site intelligent monitoring terminal (6) and 3G unit (4) that by RS485 bus, connect, described 3G unit (4) is connected with power transmission line state monitoring agent device (2), Surveillance center (5) successively.
2. iron tower of power transmission line Stress On-Line system according to claim 1, it is characterized in that, described site intelligent monitoring terminal (6), include microprocessor (9), described microprocessor (9) is connected with data storage cell (3) by parallel port, described microprocessor (9) is connected with A/D converter (11) by serial port, and described microprocessor (9) is connected with power supply (10) by wire;
Described A/D converter (11) is connected with optical fiber stress sensor module (12), Temperature Humidity Sensor (7) and wind direction and wind velocity sensor (8) by 485 order wires respectively;
Described microprocessor (9) is connected with described 3G unit (4) by serial ports.
3. iron tower of power transmission line Stress On-Line system according to claim 1 and 2, is characterized in that, that described 3G unit (4) adopts is TD-SCDMA.
4. iron tower of power transmission line Stress On-Line system according to claim 2, is characterized in that, described optical fiber stress sensor module (12) is comprised of a plurality of optical fiber stress sensors (1).
5. iron tower of power transmission line Stress On-Line system according to claim 4, is characterized in that, what described optical fiber stress sensor (1) adopted is integrated wireless optical fiber stress sensor.
6. iron tower of power transmission line Stress On-Line system according to claim 2, is characterized in that, what described power supply (10) adopted is 82AB2951 power supply.
7. iron tower of power transmission line Stress On-Line system according to claim 2, is characterized in that, what described Temperature Humidity Sensor (7) adopted is SHT11 Temperature Humidity Sensor or SHT71 Temperature Humidity Sensor.
8. iron tower of power transmission line Stress On-Line system according to claim 2, is characterized in that, what described wind direction and wind velocity sensor (8) adopted is ultrasonic type wind direction and wind velocity sensor.
9. iron tower of power transmission line Stress On-Line system according to claim 2, is characterized in that, what described microprocessor (9) adopted is MSP430 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420272210.1U CN203908712U (en) | 2014-05-26 | 2014-05-26 | Online stress-monitoring system used for power line tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420272210.1U CN203908712U (en) | 2014-05-26 | 2014-05-26 | Online stress-monitoring system used for power line tower |
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| CN203908712U true CN203908712U (en) | 2014-10-29 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316247A (en) * | 2014-11-05 | 2015-01-28 | 国家电网公司 | Power transmission line tower stress monitoring device |
| CN105719071A (en) * | 2016-01-18 | 2016-06-29 | 中国电力科学研究院 | Evaluation method of safety performance of power transmission circuit under effects of strong wind |
| CN105783756A (en) * | 2016-03-18 | 2016-07-20 | 西安工程大学 | Fiber-grating-based power transmission line iron tower deformation on-line monitoring device and method |
| CN104501863B (en) * | 2014-12-10 | 2016-09-28 | 西安工程大学 | Compound cross-arm ess-strain on-line monitoring system and monitoring method thereof |
| CN106153099A (en) * | 2015-03-23 | 2016-11-23 | 东南大学 | A kind of implementation method of the large-scale real-time security detecting system of pipe tower |
| CN107101800A (en) * | 2017-04-06 | 2017-08-29 | 广东电网有限责任公司东莞供电局 | The wind-force measuring apparatus and its measuring method of transmission tower model |
| CN107192493A (en) * | 2017-05-10 | 2017-09-22 | 浙江华电器材检测研究所 | Electric power pylon fastener axle power real-time detection method under the big temperature difference environment of strong wind |
| CN111017747A (en) * | 2019-12-25 | 2020-04-17 | 广西路桥工程集团有限公司 | Method for confirming hoisting tower wind carrier size coefficient and automatic monitoring system thereof |
| CN112134358A (en) * | 2020-09-22 | 2020-12-25 | 国家电网有限公司 | Overhead power transmission insulator insulation performance monitoring and analyzing method |
| CN113340226A (en) * | 2021-06-24 | 2021-09-03 | 广东电网有限责任公司 | Monitoring method, device, equipment and medium for power transmission line tower |
| CN114719909A (en) * | 2022-04-19 | 2022-07-08 | 国网吉林省电力有限公司长春供电公司 | Big data-based power transmission line iron tower attitude online monitoring system and method |
-
2014
- 2014-05-26 CN CN201420272210.1U patent/CN203908712U/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316247B (en) * | 2014-11-05 | 2016-08-24 | 国家电网公司 | Electric power line pole tower monitor for stress |
| CN104316247A (en) * | 2014-11-05 | 2015-01-28 | 国家电网公司 | Power transmission line tower stress monitoring device |
| CN104501863B (en) * | 2014-12-10 | 2016-09-28 | 西安工程大学 | Compound cross-arm ess-strain on-line monitoring system and monitoring method thereof |
| CN106153099B (en) * | 2015-03-23 | 2024-02-06 | 东南大学 | Implementation method of large-scale pipe tower safety real-time detection system |
| CN106153099A (en) * | 2015-03-23 | 2016-11-23 | 东南大学 | A kind of implementation method of the large-scale real-time security detecting system of pipe tower |
| CN105719071A (en) * | 2016-01-18 | 2016-06-29 | 中国电力科学研究院 | Evaluation method of safety performance of power transmission circuit under effects of strong wind |
| CN105719071B (en) * | 2016-01-18 | 2020-09-11 | 中国电力科学研究院 | Method for evaluating safety performance of power transmission line under action of strong wind |
| CN105783756A (en) * | 2016-03-18 | 2016-07-20 | 西安工程大学 | Fiber-grating-based power transmission line iron tower deformation on-line monitoring device and method |
| CN107101800A (en) * | 2017-04-06 | 2017-08-29 | 广东电网有限责任公司东莞供电局 | The wind-force measuring apparatus and its measuring method of transmission tower model |
| CN107101800B (en) * | 2017-04-06 | 2020-04-21 | 广东电网有限责任公司东莞供电局 | Wind power measuring equipment and method for power transmission iron tower model |
| CN107192493A (en) * | 2017-05-10 | 2017-09-22 | 浙江华电器材检测研究所 | Electric power pylon fastener axle power real-time detection method under the big temperature difference environment of strong wind |
| CN111017747A (en) * | 2019-12-25 | 2020-04-17 | 广西路桥工程集团有限公司 | Method for confirming hoisting tower wind carrier size coefficient and automatic monitoring system thereof |
| CN111017747B (en) * | 2019-12-25 | 2021-05-28 | 广西路桥工程集团有限公司 | Method for confirming hoisting tower wind carrier size coefficient and automatic monitoring system thereof |
| CN112134358A (en) * | 2020-09-22 | 2020-12-25 | 国家电网有限公司 | Overhead power transmission insulator insulation performance monitoring and analyzing method |
| CN113340226A (en) * | 2021-06-24 | 2021-09-03 | 广东电网有限责任公司 | Monitoring method, device, equipment and medium for power transmission line tower |
| CN114719909A (en) * | 2022-04-19 | 2022-07-08 | 国网吉林省电力有限公司长春供电公司 | Big data-based power transmission line iron tower attitude online monitoring system and method |
| CN114719909B (en) * | 2022-04-19 | 2024-03-15 | 国网吉林省电力有限公司长春供电公司 | Transmission line iron tower attitude online monitoring system and method based on big data |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Xinbo Inventor after: Liu Lei Inventor after: Song Shuanjun Inventor after: Zhang Bin Inventor after: Zhao Long Inventor after: Wang Xiaojing Inventor before: Huang Xinbo Inventor before: Liu Lei Inventor before: Song Shuanjun Inventor before: Zhang Bin Inventor before: Zhao Long |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160122 Address after: 710075 Shaanxi city of Xi'an province high tech Zone Fenghui Road No. 20 Huajing Business Plaza, block B No. 11301 Patentee after: Xi'an Jin Power Electrical Co., Ltd. Address before: 710048 Shaanxi province Xi'an Beilin District Jinhua Road No. 19 Patentee before: Xi'an Engineering Univ. |