CN103616100A - Distributed optical fiber composite ground wire icing monitoring system for optical fiber power transmission line - Google Patents
Distributed optical fiber composite ground wire icing monitoring system for optical fiber power transmission line Download PDFInfo
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- CN103616100A CN103616100A CN201310599372.6A CN201310599372A CN103616100A CN 103616100 A CN103616100 A CN 103616100A CN 201310599372 A CN201310599372 A CN 201310599372A CN 103616100 A CN103616100 A CN 103616100A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 33
- 230000005540 biological transmission Effects 0.000 title claims abstract description 31
- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- 239000002131 composite material Substances 0.000 title abstract 6
- 230000003287 optical effect Effects 0.000 claims abstract description 32
- 239000000835 fiber Substances 0.000 claims abstract description 14
- 230000009466 transformation Effects 0.000 claims abstract description 3
- 230000005611 electricity Effects 0.000 claims description 14
- 238000005259 measurement Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 239000012212 insulator Substances 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
- 230000010365 information processing Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The invention discloses a distributed optical fiber composite ground wire icing monitoring system for an optical fiber power transmission line. The problem that in the prior art, the data size is limited, so that accuracy of numerical calculation is affected is solved. The distributed optical fiber composite ground wire icing monitoring system comprises a distributed optical fiber interrogator, an optical access device, a distributed optical sensor, a computer system and an information processing unit. The optical fiber interrogator is arranged on one side of a high-voltage power transmission line power transmission and transformation station, sensor fiber of an optical fiber composite ground wire is connected with the optical fiber interrogator through the optical access device, and the optical fiber composite ground wire is arranged at the top end of a power transmission tower and can be laid as the sensor along with the power transmission line. The distributed optical fiber composite ground wire icing monitoring system is small in environment influence, high in stability, capable of monitoring the icing state of the whole line, and high in reliability.
Description
Technical field
The present invention relates to ultra-high-tension power transmission line icing monitoring field, refer to especially a kind of ultra-high-tension power transmission line optical power grounded waveguide ice covering monitoring system.
Background technology
Because wire mostly is the softness of large leap, the soft line of non resistance moment of flexure, the material and geometrical non-linearity of wire own, wire is coupled in system in complicated Transmission Tower-line power, the change of any wire line end tension force all will cause the stressed variation of tower line architecture at place, wire icing is the major reason that causes wire line end tension change, the technology of existing monitoring wire icing, all adopt isolated sensor monitoring ice coating state, data volume is limited, has affected the degree of accuracy of numerical evaluation.
Summary of the invention
The invention provides a kind of distribution type fiber-optic transmission line of electricity optical power grounded waveguide ice covering monitoring system, adopt optical power grounded waveguide as sensor, its Strain Distribution along the line of monitoring sensing, calculate and generate optical power grounded waveguide ice coating state model, can detect transmission line of electricity optical power grounded waveguide ice coating state completely, the data volume that has solved prior art existence is limited, affects the problem of the degree of accuracy of numerical evaluation.
A distribution type fiber-optic transmission line of electricity optical power grounded waveguide ice covering monitoring system, comprises that distribution type fiber-optic transmission line of electricity optical power grounded waveguide ice covering monitoring system is comprised of distribution type fiber-optic (FBG) demodulator, optical fiber access device, distributed fiberoptic sensor, computer system and information process unit.Optical fiber (FBG) demodulator is arranged on ultra-high-tension power transmission line power transmission and transformation station one side, the sensor fibre of optical power grounded waveguide is by optical fiber access device incoming fiber optic (FBG) demodulator, adopt optical power grounded waveguide as sensor, this sensor is installed in the top of power transmission tower frame, and lay completely with transmission line of electricity, distance sensing can reach 50 kilometers.
Described distributed fiberoptic sensor is to utilize a single-mode fiber of optical power grounded waveguide as sensor, the strain parameter of monitoring sensor.
Described optical fiber access device consists of optical Fiber Closure and high-tension insulator, realizes sensor fibre and links with distribution type fiber-optic (FBG) demodulator, and realize the insulation isolation of optical fiber (FBG) demodulator and optical power grounded waveguide.
Described distribution type fiber-optic (FBG) demodulator, to Fibre Optical Sensor emission pulse laser signal, with Fibre Optical Sensor effect, produce back scattering light signal, after optical power grounded waveguide icing, the stress that optical fiber is received increases, and the structure of optical fiber can change, the centre wavelength of rear orientation light can be offset, and through (FBG) demodulator, computing obtains the strain variation parameter of a measurement point.
Described computer system, links by USB interface and distribution type fiber-optic (FBG) demodulator, receives the strain parameter of each measurement point of distributed fiberoptic sensor of distribution type fiber-optic (FBG) demodulator transmission.
Described information management system, is comprised of database, receiver module, control module, display module, expert system, alarm module etc., completes storage, management, calculating, demonstration information, ice coating state that can Real-Time Monitoring transmission line of electricity optical power grounded waveguide.
The present invention uses a single-mode fiber as sensor, and having solved existing ice covering monitoring system needs the on-the-spot problem that large quantity sensor and on-the-spot power supply are installed; The data consistency of monitoring is good; The little real-time of time delay of data acquisition is high; Affected by environment little, system stability is high; Can monitor ice coating state completely, system reliability is strong.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present invention.
Embodiment
As shown in Figure 1, distribution type fiber-optic transmission line of electricity optical power grounded waveguide ice covering monitoring system of the present invention comprises distribution type fiber-optic (FBG) demodulator, optical fiber access device, distributed fiberoptic sensor, computer system and information process unit.Distributed fiberoptic sensor is connected to distribution type fiber-optic (FBG) demodulator by optical fiber access device, and distribution type fiber-optic (FBG) demodulator is realized and the linking of computer system by USB interface.Distribution type fiber-optic (FBG) demodulator is to distributed fiberoptic sensor emission pulse laser signal, when pulsed laser signal transmits in sensor fibre, acoustical phonon in fiber medium causes inelastic optical scattering, produce backward Brillouin scattering, when optical power grounded waveguide icing, optical fiber can produce strain, elasto-optical effect in optical fiber can make its refraction index changing, cause the frequency displacement meeting of Brillouin scattering to change with icing intensity, distribution type fiber-optic (FBG) demodulator, receive after backscatter signal, demodulate the strain data of each measurement point of distributed fiberoptic sensor, distribution type fiber-optic (FBG) demodulator is transferred to computer system by the strain data detecting, by information management system, completed the storage of data, management, calculate, show, report to the police etc., ice coating state that can Real-Time Monitoring transmission line of electricity optical power grounded waveguide.
Sensing element in distributed optical fiber sensing system is only optical fiber, one-shot measurement just can obtain one dimension measured in whole fiber area and distribute, the spatial resolution of system is generally in the magnitude of rice, the parameters such as variation of temperature can measuring optical fiber along the line, stress, vibration.By distributed fiberoptic sensor, measure real-time parameter, can obtain the Monitoring Data of more approaching reality, can become the increase data acquisition amount of hundred times, improve the precision of numerical simulation and technology.
Claims (4)
1. a distribution type fiber-optic transmission line of electricity optical power grounded waveguide ice covering monitoring system, comprise distribution type fiber-optic (FBG) demodulator, optical fiber access device, distributed fiberoptic sensor, the department of computer science information process unit of unifying, it is characterized in that, optical fiber (FBG) demodulator is arranged on ultra-high-tension power transmission line power transmission and transformation station one side, the sensor fibre of optical power grounded waveguide links together by optical fiber access device and optical fiber (FBG) demodulator, top at power transmission tower frame is provided with optical power grounded waveguide, and optical power grounded waveguide is laid with transmission line of electricity completely as sensor.
2. a kind of distribution type fiber-optic transmission line of electricity optical power grounded waveguide ice covering monitoring system according to claim 1, it is characterized in that, described distributed fiberoptic sensor is to utilize a single-mode fiber of optical power grounded waveguide as sensor, is used for the strain parameter of monitoring sensor.
3. a kind of distribution type fiber-optic transmission line of electricity optical power grounded waveguide ice covering monitoring system according to claim 1, it is characterized in that, described optical fiber access device consists of optical Fiber Closure and high-tension insulator, realize sensor fibre and link with distribution type fiber-optic (FBG) demodulator, and realize the insulation isolation of optical fiber (FBG) demodulator and optical power grounded waveguide.
4. a kind of distribution type fiber-optic transmission line of electricity optical power grounded waveguide ice covering monitoring system according to claim 1, it is characterized in that, described computer system links together by USB interface and distribution type fiber-optic (FBG) demodulator, and receives the strain parameter of each measurement point of distributed fiberoptic sensor of distribution type fiber-optic (FBG) demodulator transmission.
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| CN201310599372.6A CN103616100A (en) | 2013-11-25 | 2013-11-25 | Distributed optical fiber composite ground wire icing monitoring system for optical fiber power transmission line |
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| CN201310599372.6A CN103616100A (en) | 2013-11-25 | 2013-11-25 | Distributed optical fiber composite ground wire icing monitoring system for optical fiber power transmission line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121945A (en) * | 2014-06-16 | 2014-10-29 | 武汉康普常青软件技术股份有限公司 | Distributed sag online monitoring system and method for optical fiber composite overhead ground wire |
| CN114812424A (en) * | 2022-05-13 | 2022-07-29 | 天津大学 | Visual safety monitoring system and method for ice layer of natural ice rink |
Citations (5)
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|---|---|---|---|---|
| CN101701859A (en) * | 2009-11-18 | 2010-05-05 | 华北电力大学 | Fiber grating monitoring system for power transmission line |
| CN101713668A (en) * | 2008-10-03 | 2010-05-26 | 江苏通光光缆有限公司 | Device and method for detecting ice coating, short circuit and lightning strike faults on power lines in real time |
| CN101858945A (en) * | 2010-04-29 | 2010-10-13 | 中国电力科学研究院 | Laboratory icing simulating test method of optical power ground wires (OPGWs) |
| CN202582521U (en) * | 2012-04-23 | 2012-12-05 | 贵州电力试验研究院 | Power transmission line icing intelligent on-line monitoring device |
| CN103175571A (en) * | 2011-12-22 | 2013-06-26 | 中国科学院沈阳自动化研究所 | Power transmission line intelligent monitoring system based on network of things |
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2013
- 2013-11-25 CN CN201310599372.6A patent/CN103616100A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713668A (en) * | 2008-10-03 | 2010-05-26 | 江苏通光光缆有限公司 | Device and method for detecting ice coating, short circuit and lightning strike faults on power lines in real time |
| CN101701859A (en) * | 2009-11-18 | 2010-05-05 | 华北电力大学 | Fiber grating monitoring system for power transmission line |
| CN101858945A (en) * | 2010-04-29 | 2010-10-13 | 中国电力科学研究院 | Laboratory icing simulating test method of optical power ground wires (OPGWs) |
| CN103175571A (en) * | 2011-12-22 | 2013-06-26 | 中国科学院沈阳自动化研究所 | Power transmission line intelligent monitoring system based on network of things |
| CN202582521U (en) * | 2012-04-23 | 2012-12-05 | 贵州电力试验研究院 | Power transmission line icing intelligent on-line monitoring device |
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| 李成宾等: "光纤布里渊传感在输电线路覆冰监测中的应用", 《电力系统通信》, vol. 30, no. 200, 10 June 2009 (2009-06-10), pages 37 - 40 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121945A (en) * | 2014-06-16 | 2014-10-29 | 武汉康普常青软件技术股份有限公司 | Distributed sag online monitoring system and method for optical fiber composite overhead ground wire |
| CN114812424A (en) * | 2022-05-13 | 2022-07-29 | 天津大学 | Visual safety monitoring system and method for ice layer of natural ice rink |
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Application publication date: 20140305 |