CN203163769U - Overhead line safety monitoring system based on distributed fiber sensors - Google Patents
Overhead line safety monitoring system based on distributed fiber sensors Download PDFInfo
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- CN203163769U CN203163769U CN201320018835.0U CN201320018835U CN203163769U CN 203163769 U CN203163769 U CN 203163769U CN 201320018835 U CN201320018835 U CN 201320018835U CN 203163769 U CN203163769 U CN 203163769U
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Abstract
The utility model provides an OPPC (Opticalphase Conductor) overhead transmission line monitoring system, comprising an overhead line temperature sensing device and an overhead line environment monitoring device which are in connection with a central monitoring information treatment platform through an electric power telecommunication network switch or a wireless network; an overhead line sensing device is in connection with the central monitoring information treatment platform through the electric power telecommunication network switch or the wireless network; the wireless network is a GPRS wireless network. Compared with prior arts, the OPPC overhead transmission line monitoring system can raise line inspection efficiency and minimize regional power outage accidents caused by transmission line faults, is convenient to realize more exquisite and more intelligent operation and management of electrical network enterprises, enlarges operation personnel decision scope and enlarges and enhances industrialization application of an intelligent electrical network.
Description
Technical field
The utility model relates to a kind of safety monitoring system of overhead transmission line, specifically relates to a kind of safety monitoring system of the overhead transmission line based on distributed fiberoptic sensor
Background technology
The pole line that extensively uses in the power industry generally adopts optical fiber composite wire (OPPC) and the compound ground wire of optical fiber (OPGW), but because disaster causes the impaired event of pole line (ice and snow disaster, accident, geology variation etc.) to occur repeatedly, the safe operation of power telecom network and electrical network caused have a strong impact on.For example at the beginning of 2008, zones such as China Central China, East China, south have met with rare consecutive low temperature, sleet and freezing extreme weather, electric power facility disaster-stricken damage in some areas is extremely serious, because no current passes through in the ground wire, the icing degree is heavier to cause that part breaks in shaft tower and ground wire, the pole line, line bracket collapse or be out of shape.Therefore set up a kind of pole line circuit real-time monitoring system and seem particularly important, but at present the monitoring method of overhead transmission line is mainly relied on the monitoring of satisfying the need of manual inspection and helicopter.There is following drawback in manual inspection: 1. high pressure and extra high voltage network distributed areas are wide, pass through that the area is with a varied topography, environment is abominable, make the work of patrolling and examining very arduous and difficult; 2. there are security risk, handling cost height, sense cycle length and inefficiency; 3. obtain that quantity of information is limited to be difficult to satisfy social and economic development to the requirement of electric power supply quality.Under abominable weather environment, helicopter satisfies the need to monitor may threaten equally and patrols and examines personal security.
Domestic communication of power system traffic department also grasps the operation conditions of lightguide cable link by monitoring optical cable transport property, for example with equipment such as OTDR, light power meters lightguide cable link is carried out attenuation characteristic test or localization of fault, but this monitoring method lacks the effective monitoring to the mechanical property of optical cable operation.Safeguard that in a large number practical experience shows, owing to the physical environment reason causes the cable machinery characteristic variations, the pole line optical cable accident that causes outside destroy to cause is occupied very high specific gravity.Therefore, provide a kind of safety monitoring system that utilizes the fiber optic cable monitor technology to set up that overhead transmission line is monitored for addressing the above problem the utility model, grasp the stress state of pole line in real time, understand ice covering thickness, icing density, conductive line surfaces temperature and the information such as tension force, shaft tower distortion of emphasis circuit, thereby can take emergent means to avoid or the influence of disaster mitigation.
Summary of the invention
In order to overcome the defective that exists in the prior art, the utility model provides a kind of safety monitoring system of the overhead transmission line based on distributed fiberoptic sensor, described monitoring system comprises pole line temperature sensing device and the pole line environment monitoring device that links to each other with the central monitoring information processing platform by powerline network switch or wireless network, and the pole line stress sensing device links to each other with the described central monitoring information processing platform by powerline network switch or wireless network; Described wireless network is the GPRS wireless network.
Preferably, described pole line stress sensing device comprises light emission module and Optical Receivers; Described light emission module links to each other with the input end of fiber coupler; The input end of described Optical Receivers links to each other with the output terminal of described fiber coupler by optical filter, and the output terminal of described Optical Receivers links to each other with microprocessor;
Preferably, described optical filter is Fabry Perot chamber or Mach De Er interferometer once;
Preferably, the light emission module number of described pole line stress sensing device is two; A described light emission module links to each other with described fiber coupler input end with image intensifer by optoisolator, electrooptic modulator successively; Described another light emission module directly links to each other with described fiber coupler input end;
Preferably, described pole line temperature sensing device comprises light emission module, Optical Receivers, fiber Raman temperature measurement module and digital sampling and processing; The input end of described fiber Raman temperature measurement module links to each other with temperature measuring optical cable with described light emission module respectively; The output terminal of described fiber Raman temperature measurement module links to each other with described Optical Receivers; Described digital sampling and processing is connected between described light emission module and the described Optical Receivers;
Preferably, the optical generator of the light emission module of described pole line temperature sensing device is the semiconductor laser that is connected between fiber amplifier and the pulse driver; Two output branch lines of the fiber Raman coupling mechanism of described fiber Raman temperature measurement module link to each other with the fiber Raman wave filter respectively; The input end of the photodetector of described Optical Receivers links to each other with the two-way amplifier with described fiber Raman wave filter respectively with output terminal, and described two-way amplifier links to each other with modulus converter A/D 2 with modulus converter A/D 1;
Preferably, described digital sampling and processing comprises data processing unit and data acquisition unit; The processor of described data processing unit is computing machine, DSP microprocessor or PC104 mainboard;
Preferably, described pole line environment monitoring device is installed on the overhead transmission line iron tower; Little main control module of described pole line environment monitoring device is connected between communication module and the power module; Described little main control module comprise temperature measurement unit, Pressure monitoring amount unit, wind speed and direction measuring unit, rainfall measurement unit and sunshine measuring unit; Described power module comprises solar cell and silicon energy battery;
Preferably, the described central monitoring information processing platform comprises aggregation of data administration module, system management module, communication module, display module and interlock control platform; Described aggregation of data administration module will be by being delivered to the intelligent grid central authorities comprehensive monitoring information processing platform by described communication module after the data message analyzing and processing of powerline network or wireless network acquisition.
The beneficial effects of the utility model are:
1, in the technical solutions of the utility model, separate between pole line stress sensing device, pole line temperature sensing device, pole line environment monitoring device and the central monitoring information processing platform, but can pass through network interface, serial ports, relevant communication protocol realization intelligent data transmission and processing, make intelligent grid carry out comprehensive safety monitoring to pole line;
2, in the technical solutions of the utility model, the pole line stress sensing device guarantees to realize that based on distribution type fiber-optic Brillouin time domain optical time domain reflection (BOTDR) sensing principle the stress to the whole piece overhead transmission line carries out the real-time online distributed monitoring;
3, in the technical solutions of the utility model, the pole line stress sensing device is analyzed the load state of lead, can realize the lead increase-volume;
4, in the technical solutions of the utility model, the pole line temperature sensing device is based on distributed fiber Raman thermometric (ROTDR) sensing principle, guarantees to realize that the temperature to the whole piece overhead transmission line carries out the real-time online distributed monitoring;
5, in the technical solutions of the utility model, the pole line environment monitoring device realizes wind speed, wind direction, sunshine and humidity around the overhead transmission line are carried out roughly real time on-line monitoring, and judging for the state of transmission line of electricity provides the environmental data foundation;
6, in the technical solutions of the utility model, the central monitoring information processing platform, the temperature strain information of obtaining by fibre-optical sensing device, the environmental information that environment monitoring device is obtained are carried out comprehensive analysis processing, and can when appear in the each several part monitoring target, abnormal conditions control corresponding interlocking equipment by interlock control platform and take measures to ensure the electrical network operate as normal;
7, in the technical solutions of the utility model, adopt fiber products to substitute electronic product, reduce and pollute, be conducive to environmental protection;
8, the safety monitoring system of a kind of overhead transmission line based on distributed fiberoptic sensor of providing of the utility model, can reduce the labour intensity of manual inspection, discovery in time manually is difficult to the accident potential that patrols and examines, thereby improve line data-logging efficient, reduce the regional power outage that transmission line fault causes;
9, the safety monitoring system of a kind of overhead transmission line based on distributed fiberoptic sensor of providing of the utility model makes that power grid enterprises realize more becoming more meticulous and intelligentized operation and management, enlarges operating personnel's decision region;
10, the safety monitoring system of a kind of overhead transmission line based on distributed fiberoptic sensor of providing of the utility model can enlarge the commercial application of strong intelligent grid.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1: a kind of overhead transmission line safety monitoring system one-piece construction figure based on distributed fiberoptic sensor;
Fig. 2: a kind of overhead transmission line safety monitoring system cut-away view based on distributed fiberoptic sensor;
Fig. 3: pole line stress sensing device structural drawing;
Fig. 4: pole line temperature sensing device one-piece construction figure;
Fig. 5: pole line temperature sensing device cut-away view;
Fig. 6: pole line environment monitoring device structural drawing;
Fig. 7: central monitoring information processing platform structural drawing;
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is clearly and completely described.
Fig. 1 and Fig. 2 show a kind of structural drawing of the overhead transmission line safety monitoring system based on distributed fiberoptic sensor, and wherein said monitoring system comprises pole line temperature sensing device, pole line stress sensing device, pole line environment monitoring device and the central monitoring information processing platform; Described pole line temperature sensing device, described pole line stress sensing device, described pole line environment monitoring device link to each other with the described central monitoring information processing platform by powerline network switch or GPRS wireless network.
Fig. 3 shows pole line stress sensing device structural drawing, and described pole line stress sensing device comprises light emission module 1, light emission module 2 and Optical Receivers; The input end of described Optical Receivers links to each other with the output terminal of described fiber coupler by optical filter, and the output terminal of described Optical Receivers links to each other with microprocessor; Light emission module 1 links to each other with described fiber coupler input end with image intensifer by optoisolator, electrooptic modulator successively; Light emission module 2 directly links to each other with described fiber coupler input end; Described optical filter is Fabry Perot chamber or Mach De Er interferometer once;
Described pole line stress sensing device based on Brillouin scattering optical fiber sensing technology (Brillouin Optical Time Domain Reflectometer, BOTDR).Light emission module 1 and light emission module 2 are connected in the two ends of same velamen photometry fibre.The frequency of light emission module 1 emission is that the light of v2 is modulated to pump light through electrooptic modulator; Light emission module 2 sends the continuous probe light that frequency is v1, and v1 is greater than v2.Survey light and pump light and in sensor fibre, produce Brillouin scattering, when Brillouin's frequency of the difference on the frequency of surveying light and pump light and optical fiber is identical, strong interaction takes place and produces phonon at inside of optical fibre in the light beam of surveying light and pump light, the amplification of Brillouin's signal is located by the Equipment Inspection of optical time domain reflection type, draw Brillouin's frequency spectrum by the difference on the frequency of scanning probe light and pump light, this frequency spectrum of match obtains strain information;
Described pole line stress sensing device technical parameter is:
Fig. 4 shows pole line temperature sensing device one-piece construction figure, and described pole line temperature sensing device comprises light emission module, Optical Receivers, fiber Raman temperature measurement module and digital sampling and processing; The input end of described fiber Raman temperature measurement module links to each other with temperature measuring optical cable with described light emission module respectively; The output terminal of described fiber Raman temperature measurement module links to each other with described Optical Receivers; Described digital sampling and processing is connected between described light emission module and the described Optical Receivers;
Fig. 5 shows pole line temperature sensing device cut-away view, and the optical generator of the light emission module of described pole line temperature sensing device is the semiconductor laser that is connected between fiber amplifier and the pulse driver; Two output branch lines of the fiber Raman coupling mechanism of described fiber Raman temperature measurement module link to each other with a fiber Raman wave filter respectively; The photodetector 1 of described Optical Receivers links to each other with the two-way amplifier with described fiber Raman wave filter respectively with output terminal with the input end of photodetector 2, and described two-way amplifier links to each other with modulus converter A/D 2 with modulus converter A/D 1; Described digital sampling and processing comprises data processing unit and data acquisition unit; The processor of described data processing unit is computing machine, DSP microprocessor or PC104 mainboard.
Described pole line temperature sensing device is based on Raman scattering principle (Raman Optical Time-Domain Reflectometry, ROTDR) and light time territory principle, adopt the backscatter sounding method, to the back to the Raman scattering signal carry out at a high speed multi-point sampling obtain along fiber axis to the temperature field distribute, realize distributed temperature sensing.
The collection of light signal: semiconductor laser produces very narrow pump light pulse, after carrying out power ascension, passes through by fiber amplifier (EDFA) fiber Raman coupling mechanism (Wavelength Division Multiplexing, WDM) enter testing fiber, in testing fiber, produce rear orientation light; Rear orientation light again through fiber Raman wave filter (WDM) filtering with separate after obtain carrying temperature signal back to anti-Stokes Raman diffused light and back to the Stokes Raman diffused light as with reference to signal;
The back enters photodetector 1 respectively and photodetector 2 carries out opto-electronic conversion to anti-Stokes Raman diffused light and back to the Stokes Raman diffused light, and this moment, signal became the level form by the luminous power formal transformation; After the opto-electronic conversion back to the anti-Stokes Raman diffused light and the back behind two-way amplifier amplification level signal, carry out analog to digital conversion by modulus converter A/D 1 and modulus converter A/D 2 to the Stokes Raman diffused light respectively, thereby obtain digital signal, by computing machine digital signal is carried out signal processing, analytical calculation again, finally obtain the temperature information of corresponding point;
The technical parameter of described pole line temperature sensing device is:
Fig. 6 shows pole line environment monitoring device structural drawing, and described pole line environment monitoring device is installed on the overhead transmission line iron tower; Little main control module of described pole line environment monitoring device is connected between communication module and the power module; Described little main control module comprise temperature measurement unit, Pressure monitoring amount unit, wind speed and direction measuring unit, rainfall measurement unit and sunshine measuring unit; Described power module comprises solar cell and silicon energy battery;
The technical parameter of described pole line environment monitoring device is:
Fig. 6 shows central monitoring information processing platform structural drawing, and the described central monitoring information processing platform comprises aggregation of data administration module, system management module, communication module, display module and interlock control platform; Described aggregation of data administration module will be by being delivered to the intelligent grid central authorities comprehensive monitoring information processing platform by described communication module after the data message analyzing and processing of powerline network or wireless network acquisition;
The central monitoring information processing platform can be controlled corresponding interlocking equipment by interlock control platform and take measures to ensure the electrical network operate as normal when abnormal conditions appear in the each several part monitoring target.
A kind of OPPC overhead transmission line monitoring system that the utility model provides can improve line data-logging efficient, reduce the regional power outage that transmission line fault causes, being convenient to power grid enterprises realizes more becoming more meticulous and intelligentized operation and management, enlarge operating personnel's decision region, and can enlarge the commercial application of strong intelligent grid.
Should be noted that at last: described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the application's protection.
Claims (8)
1. safety monitoring system based on the overhead transmission line of distributed fiberoptic sensor, described monitoring system comprises pole line temperature sensing device and the pole line environment monitoring device that links to each other with the central monitoring information processing platform by powerline network switch or wireless network, it is characterized in that the pole line stress sensing device links to each other with the described central monitoring information processing platform by powerline network switch or wireless network; Described wireless network is the GPRS wireless network.
2. the safety monitoring system of a kind of overhead transmission line based on distributed fiberoptic sensor as claimed in claim 1 is characterized in that described pole line stress sensing device comprises light emission module and Optical Receivers; Described light emission module links to each other with the input end of fiber coupler; The input end of described Optical Receivers links to each other with the output terminal of described fiber coupler by optical filter, and the output terminal of described Optical Receivers links to each other with microprocessor.
3. the safety monitoring system of a kind of overhead transmission line based on distributed fiberoptic sensor as claimed in claim 2 is characterized in that, described optical filter is Fabry Perot chamber or Mach De Er interferometer once.
4. the safety monitoring system of a kind of overhead transmission line based on distributed fiberoptic sensor as claimed in claim 2 is characterized in that the light emission module number of described pole line stress sensing device is two; A described light emission module links to each other with the input end of described fiber coupler with image intensifer by optoisolator, electrooptic modulator successively; Described another light emission module directly links to each other with the input end of described fiber coupler.
5. the safety monitoring system of a kind of overhead transmission line based on distributed fiberoptic sensor as claimed in claim 1, it is characterized in that described pole line temperature sensing device comprises light emission module, Optical Receivers, fiber Raman temperature measurement module and digital sampling and processing; The input end of described fiber Raman temperature measurement module links to each other with temperature measuring optical cable with described light emission module respectively; The output terminal of described fiber Raman temperature measurement module links to each other with described Optical Receivers; Described digital sampling and processing is connected between described light emission module and the described Optical Receivers.
6. the safety monitoring system of a kind of overhead transmission line based on distributed fiberoptic sensor as claimed in claim 5, it is characterized in that the optical generator of the light emission module of described pole line temperature sensing device is the semiconductor laser that is connected between fiber amplifier and the pulse driver; Two output branch lines of the fiber Raman coupling mechanism of described fiber Raman temperature measurement module link to each other with the fiber Raman wave filter respectively; The input end of the photodetector of the Optical Receivers of described pole line temperature sensing device links to each other with the two-way amplifier with described fiber Raman wave filter respectively with output terminal, and described two-way amplifier links to each other with modulus converter A/D 2 with modulus converter A/D 1.
7. the safety monitoring system of a kind of overhead transmission line based on distributed fiberoptic sensor as claimed in claim 5 is characterized in that described digital sampling and processing comprises data processing unit and data acquisition unit; The processor of described data processing unit is computing machine, DSP microprocessor or PC104 mainboard.
8. the safety monitoring system of a kind of overhead transmission line based on distributed fiberoptic sensor as claimed in claim 1 is characterized in that described pole line environment monitoring device is installed on the overhead transmission line iron tower; Little main control module of described pole line environment monitoring device is connected between communication module and the power module; Described little main control module comprise temperature measurement unit, Pressure monitoring amount unit, wind speed and direction measuring unit, rainfall measurement unit and sunshine measuring unit; Described power module comprises that solar cell and silicon can batteries.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515548A (en) * | 2014-12-15 | 2015-04-15 | 国家电网公司 | Real-time environmental monitoring terminal and detection method for power and communication aerial optical cable |
| CN105865497A (en) * | 2016-06-08 | 2016-08-17 | 无锡亚天光电科技有限公司 | Method for using communication optical fiber as distributive sensor |
| CN106199056A (en) * | 2016-07-07 | 2016-12-07 | 武汉康普常青软件技术股份有限公司 | A kind of distributed wind speed on-line monitoring method in overhead transmission line corridor |
| CN106226636A (en) * | 2016-08-01 | 2016-12-14 | 国网山西省电力公司大同供电公司 | A kind of ultra-high-tension power transmission line abnormal alarm system |
| CN106768475A (en) * | 2016-12-28 | 2017-05-31 | 上海长园维安电子线路保护有限公司 | The temperature-measuring control device and its method of novel battery and assembled battery |
| CN108696586A (en) * | 2018-05-11 | 2018-10-23 | 国网山东省电力公司东营供电公司 | A kind of distribution network automated Transmission system and method based on OPPC lines |
| CN110631638A (en) * | 2019-10-18 | 2019-12-31 | 中冶南方工程技术有限公司 | Electric power iron tower monitoring system based on optical fiber sensing |
| CN112345128A (en) * | 2020-09-22 | 2021-02-09 | 国家电网有限公司 | Mechanical force monitoring and analyzing method for ground wire of overhead transmission line |
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2013
- 2013-01-15 CN CN201320018835.0U patent/CN203163769U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515548A (en) * | 2014-12-15 | 2015-04-15 | 国家电网公司 | Real-time environmental monitoring terminal and detection method for power and communication aerial optical cable |
| CN104515548B (en) * | 2014-12-15 | 2015-12-30 | 国家电网公司 | A kind of power communication aerial optical cable real time environment monitoring terminal and detection method |
| CN105865497A (en) * | 2016-06-08 | 2016-08-17 | 无锡亚天光电科技有限公司 | Method for using communication optical fiber as distributive sensor |
| CN106199056A (en) * | 2016-07-07 | 2016-12-07 | 武汉康普常青软件技术股份有限公司 | A kind of distributed wind speed on-line monitoring method in overhead transmission line corridor |
| CN106199056B (en) * | 2016-07-07 | 2019-02-22 | 武汉康普常青软件技术股份有限公司 | A kind of distributed wind speed on-line monitoring method in overhead transmission line corridor |
| CN106226636A (en) * | 2016-08-01 | 2016-12-14 | 国网山西省电力公司大同供电公司 | A kind of ultra-high-tension power transmission line abnormal alarm system |
| CN106226636B (en) * | 2016-08-01 | 2018-10-26 | 国网山西省电力公司大同供电公司 | A kind of ultra-high-tension power transmission line abnormal alarm system |
| CN106768475A (en) * | 2016-12-28 | 2017-05-31 | 上海长园维安电子线路保护有限公司 | The temperature-measuring control device and its method of novel battery and assembled battery |
| CN108696586A (en) * | 2018-05-11 | 2018-10-23 | 国网山东省电力公司东营供电公司 | A kind of distribution network automated Transmission system and method based on OPPC lines |
| CN110631638A (en) * | 2019-10-18 | 2019-12-31 | 中冶南方工程技术有限公司 | Electric power iron tower monitoring system based on optical fiber sensing |
| CN112345128A (en) * | 2020-09-22 | 2021-02-09 | 国家电网有限公司 | Mechanical force monitoring and analyzing method for ground wire of overhead transmission line |
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