CN101713668A - Device and method for detecting ice coating, short circuit and lightning strike faults on power lines in real time - Google Patents
Device and method for detecting ice coating, short circuit and lightning strike faults on power lines in real time Download PDFInfo
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- CN101713668A CN101713668A CN200810155459A CN200810155459A CN101713668A CN 101713668 A CN101713668 A CN 101713668A CN 200810155459 A CN200810155459 A CN 200810155459A CN 200810155459 A CN200810155459 A CN 200810155459A CN 101713668 A CN101713668 A CN 101713668A
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Abstract
The invention discloses a device and a method for detecting ice coating, short circuit and lightning strike faults on power lines in real time by utilizing optical fibers in an optical fiber composite overhead ground wire. A distribution type optical fiber stress/temperature measuring instrument in a machine room at end A receives stress and temperature of the optical fibers in the zone between the machine room at the end A and a machine room at end B with the distance of 40-80km away from the end A; and a processing calculator and an analyzing storage calculator at the end A are used for analyzing the stress value, the temperature value, the duration time and the distribution intervals by being assisted with relevant change law, which can judge the ice coating, short circuit and lightning strike faults and the fault areas of the power lines on line in real time, can provide prealarming at the beginning of the generation of the ice coating fault, and provide alarming in real time when the short circuit and lightning strike faults are generated. The invention has the advantage that the passive situation of large loss caused by finding faults after manual patrol at low efficiency is solved; the blank of on-line and real-time detection and prealarming on the ice coating, short circuit and lightning strike faults of the power lines is filled; and the efficiency is high.
Description
Technical field
The present invention relates to a kind of with the real-time detection apparatus and the detection method of the built on stilts ground wire of Optical Fiber Composite (being called for short OPGW) to power circuit icing, short circuit and lightning fault.
Background technology
The fault of transmission line of electricity is mainly caused by icing, short circuit and thunderbolt, has a strong impact on the normal operation of power circuit.At the beginning of 2008, China's southern area is subjected to historical rare consecutive low temperature freezing rain and snow disaster, and electrical network facilities is impaired serious.The serious icing of line of electric force makes pole line deadweight surge, breaks above its ultimate strength, and causes the serious unbalance tower that causes down of shaft tower both sides tension force.The power transmission line fault that is short-circuited is generally single-phase shorted to earth, contain OPGW and flow through very big short-circuit current and the temperature rising at interior built on stilts ground wire, cause the pole line sag to descend, thunderbolt has made the OPGW of lightning protection function and aerial earth wire interrupt outer strand and sagging, collide with line of electric force or near causing discharge, make the transmission system tripping operation, will burn when serious as power supply facilitiess such as transformers.Faults such as sag decline that at present, the icing of pole line, short circuit cause and the disconnected thigh of thunderbolt find afterwards by artificial regular or irregular line walking that mainly prior art does not also have very cost-effective real-time detection method let alone early warning.
Summary of the invention
For the icing, short circuit and the lightning fault that overcome existing transmission line of electricity can not in time be found, the deficiency that only depends on artificial pipeline rider afterwards to find, the invention provides the real-time detection apparatus and the detection method of a kind of power circuit icing, short circuit and lightning fault, make it can provide early warning in the icing formation phase, fault zone and position are provided when short circuit and lightning fault take place in real time.
The technical solution adopted for the present invention to solve the technical problems is, a kind of power circuit icing, the real-time detection apparatus of short circuit and lightning fault and detection method, by distributed optical strain/temperature measuring set, fibre distribution frame, optical fiber among the OPGW, fiber optic loop is line in succession, the pumping laser amplifier, handle counter and analyze and store the counter composition, the fiber port of the distributive fiber optic strain/temperature measuring set in A terminal room is connected with optic fibre connector optics on the machine room inner fiber distributing frame, and distributive fiber optic strain/temperature measuring set also stores counter and is electrically connected with handling counter and analyze; Be connected with pumping laser amplifier optics at B terminal room inner fiber terminal, when optical fiber is two between the side a and b, wherein one is measuring optical fiber, another root is a return path signal optical fiber, between A end is held with B during with an optical fiber, then measure and the passback detection signal by same Optical Fiber Transmission, return path signal is after A holds distributive fiber optic strain/temperature measuring set to receive, counter is handled in input, information input after the processing is analyzed and is stored counter, the working condition of analysis circuit also stores, and icing, short circuit and lightning fault occur as analysis, then timely output alarm signal.The power circuit icing, the real-time detection method of short circuit and lightning fault, it is characterized in that A end detect simultaneously and analyze with distributive fiber optic strain/temperature measuring set A holds and the B petiolarea between Optical Fiber composite overhead Ground Wire in the dependent variable of optical fiber, temperature is along the changes in distribution and the location of length, be aided with and hold time and the variation of temperature rule, to distinguish and to judge that the residing duty of power circuit is an operate as normal, icing has still taken place, short circuit and lightning fault and fault distributed area and position, and early warning is provided in the early stage that the icing fault takes place, real-time alert when taking place, short circuit and lightning fault is provided; Above-mentioned optical fiber is various types of communication optical fiber and non-sensor fibre of communicating by letter.
Good effect of the present invention is the optical fiber that utilizes in the Optical Fiber composite overhead Ground Wire, adopt the optical fiber distributed type measuring technique, detect its stress and temperature, the numerical value of analyzing these two parameters, duration and distributed area at work simultaneously, but online in real time is judged icing, short circuit and lightning fault and the fault zone of power circuit, and provide ice-coating pre-warning, thereby timely handling failure, overcome by artificial line walking and found afterwards and handle, the serious consequence of avoiding fault extension to cause guarantees that power circuit safety normally moves.According to present instrument dynamic range and pumping laser Amplifier Gain, can detect distance is 40～80km.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is an of the present invention pair of optical fiber measurement device connection diagram.
Fig. 2 is a single fiber measurement mechanism connection diagram of the present invention.
In Fig. 1, Fig. 2: 1. distributive fiber optic strain/temperature measuring set, the 2. fibre distribution frame in the machine room, the optical fiber among the 3.0PGW, 4. fiber optic loop line in succession, 5. the pumping laser amplifier is 6. handled counter, 7. analyze and store counter, A is the machine room that is connected OPGW optical cable two ends with B.
Embodiment
In Fig. 1 Fig. 2, a kind of power circuit icing, the real-time detection apparatus of short circuit and lightning fault and detection method, by distributive fiber optic strain/temperature measuring set (1), fibre distribution frame (2), optical fiber among the OPGW (3), fiber optic loop wiring (4), pumping laser amplifier (5), handle counter (6) and analyze and store counter (7) composition, the fiber port of the distributive fiber optic strain/temperature measuring set (1) in A terminal room is connected with optic fibre connector optics on the A terminal room inner fiber distributing frame (2), distributive fiber optic strain/temperature measuring set (1) also stores counter (7) with processing counter (6) and analysis and is electrically connected, and is connected with pumping laser amplifier (5) optics at B terminal room optic fibre connector.When optical fiber (3) is two between A end and the B end, connect in succession in B end fiber optic loop, wherein one is measuring optical fiber, another root is a return path signal optical fiber, when being an optical fiber between A end and the B end, measure and the passback detection signal by same Optical Fiber Transmission, counter (6) is handled in return path signal input after distributive fiber optic strain/temperature measuring set (1) receives, information input after the processing is analyzed and is stored counter (7), analyze the working condition and the storage of power circuit, as analyze icing, short circuit or lightning fault take place, timely output alarm signal then.The icing of power circuit, the real-time detection method of short circuit and lightning fault, it is characterized in that A end detect simultaneously and analyze with distributive fiber optic strain/temperature measuring set (1) A holds and the B petiolarea between OPGW optical in the dependent variable of optical fiber, temperature is along the changes in distribution and the location of length, be aided with and hold time and the variation of temperature rule, to distinguish and to judge that the residing duty of power circuit is an operate as normal, icing still takes place, short circuit and lightning fault and fault distributed area and position, and to provide early warning, above-mentioned optical fiber in the early stage that fault takes place be various types of communication optical fiber and non-sensor fibre of communicating by letter.Above-mentioned being aided with holds time and the variation of temperature rule, in long-term practice and detecting, finds out the differentiation rule that optical fiber among the OPGW can be for reference under power circuit operate as normal, icing, short circuit and lightning fault state and is:
| The power circuit duty | Normally | Icing | Short circuit | Thunderbolt |
| Dependent variable | ??≤0.2％ | ??≥0.5％ | ??≥0.2％ | ??- |
| Temperature | Environment temperature | ??≤0℃ | ??≥100℃ | ??≥400℃ |
| Hold time | For a long time | ??≥72h | ??≥5min | ??≥1min |
| Between positioning area | Omnidistance | Section | ??≤10km | ??≤0.5km |
| The power circuit duty | Normally | Icing | Short circuit | Thunderbolt |
| Other | Stress continues to increase | Temperature can be recovered | Temperature can be recovered |
Claims (2)
1. power circuit icing, the real-time detection apparatus of short circuit and lightning fault and detection method, by distributive fiber optic strain/temperature measuring set (1), fibre distribution frame (2), optical fiber among the OPGW (3), fiber optic loop is line (4) in succession, pumping laser amplifier (5), handle counter (6) and analyze and store counter (7) composition, the fiber port of the distributive fiber optic strain/temperature measuring set in A terminal room is connected with optic fibre connector optics on the machine room inner fiber rack of distributing fibers (2), distributive fiber optic strain/temperature measuring set (1) also stores counter (7) with processing counter (6) and analysis and is electrically connected, and is connected with pumping laser amplifier (5) optics at B end optic fibre connector.When optical fiber is two between the side a and b, wherein one is measuring optical fiber, another root is a return path signal optical fiber, between A end is held with B during with an optical fiber, then measure and the passback detection signal by same Optical Fiber Transmission, counter (6) is handled in return path signal input after A holds distributive fiber optic strain/temperature measuring set (1) to receive, information input after the processing is analyzed and is stored counter (7), the working condition of analysis circuit also stores, as analyze the generation icing, short circuit and lightning fault, then timely output alarm signal, a kind of icing of power circuit, the detection method of short circuit and lightning fault, it is characterized in that A end detect simultaneously and analyze with distributive fiber optic strain/temperature measuring set (1) A holds and the B petiolarea between Optical Fiber composite overhead Ground Wire in the dependent variable of optical fiber, temperature is along the changes in distribution and the location of length, be aided with and hold time and the variation of temperature rule, to distinguish and to judge that the residing duty of power circuit is an operate as normal, icing still takes place, short circuit and lightning fault, and fault distributed area and position, and early warning takes place to provide early stage in the icing fault, real-time alert when taking place, short circuit and lightning fault is provided.
2. the real-time detection apparatus and the detection method of power circuit icing according to claim 1, short circuit and lightning fault is characterized in that described optical fiber (3) is various types of communication optical fiber and non-sensor fibre of communicating by letter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810155459A CN101713668A (en) | 2008-10-03 | 2008-10-03 | Device and method for detecting ice coating, short circuit and lightning strike faults on power lines in real time |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810155459A CN101713668A (en) | 2008-10-03 | 2008-10-03 | Device and method for detecting ice coating, short circuit and lightning strike faults on power lines in real time |
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| CN101713668A true CN101713668A (en) | 2010-05-26 |
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| CN200810155459A Pending CN101713668A (en) | 2008-10-03 | 2008-10-03 | Device and method for detecting ice coating, short circuit and lightning strike faults on power lines in real time |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377484A (en) * | 2011-10-14 | 2012-03-14 | 北京直真科技股份有限公司 | Method for detecting business security of station in-out cable of transmission network station |
| CN103323140A (en) * | 2013-05-27 | 2013-09-25 | 云南电力试验研究院（集团）有限公司电力研究院 | Method utilizing optical fiber composite overhead ground wire redundant cable to solve cross sensitivity existing in optical fiber Brillouin scattering monitoring |
| CN103512504A (en) * | 2013-10-09 | 2014-01-15 | 国家电网公司 | Fixed-length small-span-length guiding ground wire length measuring device and measuring method |
| CN103616100A (en) * | 2013-11-25 | 2014-03-05 | 国家电网公司 | Distributed optical fiber composite ground wire icing monitoring system for optical fiber power transmission line |
| CN103713236A (en) * | 2013-12-27 | 2014-04-09 | 国家电网公司 | Method for automatically judging electric transmission line icing fault |
| CN104111404A (en) * | 2014-06-16 | 2014-10-22 | 武汉康普常青软件技术股份有限公司 | Polarized light time domain reflection-based power transmission line fault detection system and positioning method |
| 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 |
| CN104539357A (en) * | 2014-12-25 | 2015-04-22 | 广东电网有限责任公司东莞供电局 | OPGW detecting system and method based on distributed type data |
| WO2015135485A1 (en) * | 2014-03-12 | 2015-09-17 | 国家电网公司 | Lightning strike distinguishing and locating method for optical fibre composite overhead ground wire |
| CN105203032A (en) * | 2015-09-22 | 2015-12-30 | 国网电力科学研究院武汉南瑞有限责任公司 | Transmission line wires distributed arc sag monitoring device and method |
| CN106225826A (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 ice coating state monitoring device and method |
| CN106908008A (en) * | 2017-03-13 | 2017-06-30 | 贵州电网有限责任公司电力科学研究院 | A kind of transmission line of electricity distribution ice-melt monitoring method |
| GB2558295A (en) * | 2016-12-23 | 2018-07-11 | Aiq Dienstleistungen Ug Haftungsbeschrankt | A distributed lightning stroke detection system operating in a monitoring mode |
| CN109461296A (en) * | 2018-12-20 | 2019-03-12 | 广东电网有限责任公司 | Grid power transmission route early warning system and method |
| CN109870633A (en) * | 2019-03-28 | 2019-06-11 | 国网河南省电力公司电力科学研究院 | A kind of pilot system deicing the Study on Fault suitable for multi gear transmission pressure |
-
2008
- 2008-10-03 CN CN200810155459A patent/CN101713668A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377484B (en) * | 2011-10-14 | 2014-04-23 | 北京直真科技股份有限公司 | Method for detecting business security of station in-out cable of transmission network station |
| CN102377484A (en) * | 2011-10-14 | 2012-03-14 | 北京直真科技股份有限公司 | Method for detecting business security of station in-out cable of transmission network station |
| CN103323140A (en) * | 2013-05-27 | 2013-09-25 | 云南电力试验研究院（集团）有限公司电力研究院 | Method utilizing optical fiber composite overhead ground wire redundant cable to solve cross sensitivity existing in optical fiber Brillouin scattering monitoring |
| CN103512504B (en) * | 2013-10-09 | 2016-10-12 | 国家电网公司 | A kind of fixed length little span lead wire and earth wire Line length measurer and measuring method |
| CN103512504A (en) * | 2013-10-09 | 2014-01-15 | 国家电网公司 | Fixed-length small-span-length guiding ground wire length measuring device and measuring method |
| CN103616100A (en) * | 2013-11-25 | 2014-03-05 | 国家电网公司 | Distributed optical fiber composite ground wire icing monitoring system for optical fiber power transmission line |
| CN103713236A (en) * | 2013-12-27 | 2014-04-09 | 国家电网公司 | Method for automatically judging electric transmission line icing fault |
| CN103713236B (en) * | 2013-12-27 | 2016-06-29 | 国家电网公司 | A kind of powerline ice-covering fault automatic judging method |
| WO2015135485A1 (en) * | 2014-03-12 | 2015-09-17 | 国家电网公司 | Lightning strike distinguishing and locating method for optical fibre composite overhead ground wire |
| 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 |
| CN104111404A (en) * | 2014-06-16 | 2014-10-22 | 武汉康普常青软件技术股份有限公司 | Polarized light time domain reflection-based power transmission line fault detection system and positioning method |
| CN104539357A (en) * | 2014-12-25 | 2015-04-22 | 广东电网有限责任公司东莞供电局 | OPGW detecting system and method based on distributed type data |
| CN104539357B (en) * | 2014-12-25 | 2016-04-27 | 广东电网有限责任公司东莞供电局 | Based on OPGW detection system and the method for distributed data |
| CN105203032A (en) * | 2015-09-22 | 2015-12-30 | 国网电力科学研究院武汉南瑞有限责任公司 | Transmission line wires distributed arc sag monitoring device and method |
| CN105203032B (en) * | 2015-09-22 | 2017-11-14 | 国网电力科学研究院武汉南瑞有限责任公司 | The monitoring device and method of transmission line wire distribution sag |
| CN106225826A (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 ice coating state monitoring device and method |
| GB2558295A (en) * | 2016-12-23 | 2018-07-11 | Aiq Dienstleistungen Ug Haftungsbeschrankt | A distributed lightning stroke detection system operating in a monitoring mode |
| GB2558295B (en) * | 2016-12-23 | 2020-04-08 | Aiq Dienstleistungen Ug Haftungsbeschraenkt | A distributed lightning stroke detection system operating in a monitoring mode |
| CN106908008A (en) * | 2017-03-13 | 2017-06-30 | 贵州电网有限责任公司电力科学研究院 | A kind of transmission line of electricity distribution ice-melt monitoring method |
| CN109461296A (en) * | 2018-12-20 | 2019-03-12 | 广东电网有限责任公司 | Grid power transmission route early warning system and method |
| CN109870633A (en) * | 2019-03-28 | 2019-06-11 | 国网河南省电力公司电力科学研究院 | A kind of pilot system deicing the Study on Fault suitable for multi gear transmission pressure |
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Open date: 20100526 |