CN104065016B - Online icing-prevention and snow-coverage-prevention method for electric transmission line by utilizing separate-excitation resonance - Google Patents

Online icing-prevention and snow-coverage-prevention method for electric transmission line by utilizing separate-excitation resonance Download PDF

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Publication number
CN104065016B
CN104065016B CN201410344184.3A CN201410344184A CN104065016B CN 104065016 B CN104065016 B CN 104065016B CN 201410344184 A CN201410344184 A CN 201410344184A CN 104065016 B CN104065016 B CN 104065016B
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China
Prior art keywords
transmission line
snow
prevention
electricity
snowberg
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Expired - Fee Related
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CN201410344184.3A
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Chinese (zh)
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CN104065016A (en
Inventor
周封
刘健
王丙全
王晨光
郝婷
崔博闻
李伟力
刘小可
胡海涛
安娜
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Harbin University of Science and Technology
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Harbin University of Science and Technology
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Abstract

The invention provides an online icing-prevention and snow-coverage-prevention method for an electric transmission line by utilizing separate-excitation resonance. The method is implemented by jointly utilizing an icing-prevention and snow-coverage-prevention terminal device and a monitoring center which are arranged on the line. According to the working principle, the icing-prevention and snow-coverage-prevention terminal device arranged on the electric transmission line monitors environmental parameters online, when freezing rain or snowing is judged to happen, the icing-prevention and snow-coverage-prevention terminal device automatically runs, mechanical vibration the same as the fixed frequency value of the electric transmission line is generated to be used as an externally-added excitation source, the externally-added excitation source and the electric transmission line generate resonance, the electric transmission line is prevented from being frozen or covered by snow, and the online ice and snow prevention function of the electric transmission line is achieved. The icing-prevention and snow-coverage-prevention terminal device and the monitoring center can in real-time remote communication and perform real-time feedback, and early warning is performed on the nearby area with no icing-prevention and snow-coverage-prevention terminal device. According to the method, various power grid accidents caused by icing of the electric transmission line can be effectively avoided, and the new idea that passive deicing is changed into active ice prevention is provided for a power system.

Description

Using the online anti-freeze anti-snowberg method of the transmission line of electricity of outer sharp resonance
Technical field
The present invention relates to power system security technical field, and in particular to a kind of transmission line of electricity using outer sharp resonance is online Anti-freeze anti-snowberg method.
Technical background
According to incompletely statistics, since the last century mid-term, China's transmission line of electricity is subjected to different degrees of icing disaster up to upper Thousand times, the problems such as powerline ice-covering will cause down tower, broken string, ice sudden strain of a muscle, tripping operation, conductor galloping, power equipment to damage.China south Low temperature, sleet, freezing disaster are frequently suffered from when at the beginning of square drug in some provinces area last month of spring in winter, when temperature is in zero degree or so, transmission of electricity The accumulated snow Jing that covered on circuit melts and secondary freezes process so that the harder thickness of appended icicle on high-voltage line, makes power transmission line Road is subjected to significant damage, not only breaks up electric network composition, threatens power grid security, while having a strong impact on the daily life of the people, and gives National economy causes huge economic losses.
For powerline ice-covering problem, mostly using the online de-icing method of transmission line of electricity.It is artificial using traditional external force De-icing method is beaten, the method is although simple, but inefficiency, while causing pole to the life security of power worker Big threat;Using the deicing of robot of mechanical deicing, due to needing obstacle detouring to move so that robot volume is big, high cost, mechanism Complexity, easily causes extra line fault, and deicing cutter tip easily causes point discharge phenomenon in environment under high pressure, to electric power System introduces unstable factor;Joule heat ice-melt robot deicing major part is adopted premised on transmission line of electricity power-off, and energy Consume is big, cost of investment is high, deicing scope is little, causes damage to social economy and bring great inconvenience with people's life.
Both at home and abroad the anti-icing method of existing ultra-high-tension power transmission line, is broadly divided into anti-icing method and Jiao of spraying anti-icing paint Two kinds of anti-icing method of having burning ears, wherein using the spraying of artificial or machine more than spraying anti-icing paint, its workload is big, anti-icing ageing It is short;The anti-icing method of Joule heat in the middle of transmission line of electricity by installing reactive power compensator or increasing sub-conductor using split conductor Electric current transmission quantity, so as to producing high current in the way of Joule heat ice-melt and then realizing anti-icing purpose, its energy dissipation is big, throwing Money high cost, anti-icing scope are little, cause damage to social economy and bring great inconvenience with people's life.
By the As-Is analysis to the anti-icing technology of removing ice of power transmission line, the present invention proposes a kind of using the defeated of outer sharp resonance The online anti-freeze anti-snowberg method of electric line, the method not only actively avoids transmission line of electricity and causes power grid accident because of icing, Also ensured overhead transmission line continue, safe and stable operation, also for power system except ice problem propose one kind by passive Deicing realizes the online anti-icing operation of intelligent high-efficiency rate to actively anti-icing new approaches.
The content of the invention
In order to avoid high pressure overhead power line is because icing is blocked up or accumulated snow, and cause the damage to transmission line of electricity and shaft tower Problem, the invention provides a kind of online anti-freeze anti-snowberg method of transmission line of electricity using outer sharp resonance, online using installing Anti-freeze anti-snowberg termination and Surveillance center on road realize jointly, and the operation principle of the method is by installing on the line Anti-freeze anti-snowberg termination on-line monitoring transmission line of electricity ambient temperature, humidity and wind speed judge whether to be generated with sleet Condition, monitors snow degree using intelligent video, and when judging sleet to occur or snows, anti-icing termination automatic running is produced Raw and transmission line of electricity natural frequency value identical mechanical vibration produce resonance as extrinsic motivated source with transmission line of electricity, prevent defeated Freeze or snowberg in electric line, so as to realize the online Anti-ice-and-snow function of transmission line of electricity.Anti-freeze anti-snowberg termination and monitoring Center can carry out real time remote communication, by its working condition, collection in worksite parameter, Anti-ice-and-snow disposition Real-time Feedback to monitoring Center, remote center collects multipoint data, to not including that the relevant range with the system terminal carries out early warning, and by dependency number According to preserve as historical data to count, to analyze in the future, decision-making.The method not only effectively prevent and cause because of wire icing Various power grid accidents, also ensured overhead transmission line continue, safe and stable operation, while proposing for power system It is a kind of by passive deicing to actively anti-icing new approaches.
The technical solution adopted in the present invention is as follows:
It is anti-freeze anti-using install on the line using the online anti-freeze anti-snowberg method of the transmission line of electricity of outer sharp resonance Snowberg termination and Surveillance center realize jointly, it is characterised in that the operation principle of the method is by installed in transmission line of electricity On anti-freeze anti-snowberg termination on-line monitoring transmission line of electricity ambient temperature, humidity and wind speed, frozen with judging whether to have Rain formation condition, monitors snow degree using intelligent video, when judging sleet to occur or snows, anti-freeze anti-snowberg terminal dress Put automatic running, produce mechanical vibration as extrinsic motivated source, with transmission line of electricity resonance is produced, prevent to be frozen on transmission line of electricity or Snowberg, so as to realize the online anti-freeze anti-snowberg function of transmission line of electricity, anti-freeze anti-snowberg termination and Surveillance center it Between can carry out real time remote communication.
The online anti-freeze anti-snowberg method of the transmission line of electricity of the outer sharp resonance of described utilization, install on the line is anti-freeze Anti- snowberg termination calculates the eigentone for testing out the circuit, when starting Anti-ice-and-snow work, produces and transmission line of electricity Eigentone identical mechanical vibration as extrinsic motivated source, produce resonance with transmission line of electricity, prevent transmission line of electricity Freeze or snowberg.
The online anti-freeze anti-snowberg method of the transmission line of electricity of the outer sharp resonance of described utilization, anti-freeze anti-snowberg system monitoring To may occur after sleet or situation of snowing, proactive notification Surveillance center, while automatically turn on Anti-ice-and-snow work, and by its work State, collection in worksite parameter, Anti-ice-and-snow disposition Real-time Feedback are to Surveillance center.
The online anti-freeze anti-snowberg method of the transmission line of electricity of the outer sharp resonance of described utilization, Surveillance center collects many points According to, judge sleet or fall to avenging scope, degree of generation etc., it is pre- to carrying out including the not relevant range with the system terminal It is alert, and related data is preserved as historical data to count, to analyze in the future, decision-making.
Compared with prior art, remarkable advantage of the invention is:
The characteristics of being different from existing anti-icing method maximum is that anti-icing equipment is based on outer sharp resonance principle, is monitoring possibility There is automatic running after the situation of sleet or the snow that falls, the mechanical vibration produced by the use of outer sharp resonance are and defeated as extrinsic motivated source Electric line produces resonance, effectively prevents transmission line of electricity from producing accumulated snow or forming sleet, rather than carries out deicing again after generation icing Work, it is anti-icing during without substantial amounts of energy loss, can actively avoid the accident caused because of powerline ice-covering, it is ensured that built on stilts The operation safety of transmission line of electricity, provides to socio-economic development and daily life and ensures, while being also transmission line of electricity Icing problem propose it is a kind of by passive deicing to actively anti-icing new approaches.
Without mobile operation in the method implementation process, it is to avoid the device caused because obstacle detouring is operated and line fault.
Description of the drawings
Fig. 1 is the schematic diagram of the anti-freeze anti-snowberg device work of the present invention.
In figure:1- anti-icing equipments, 2- shaft towers, 3- transmission lines of electricity, span between 4- two shaft towers of correspondence, 5- Surveillance center.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described:
The present invention is a kind of online anti-freeze anti-snowberg method of transmission line of electricity using outer sharp resonance, between known two shaft tower Anti-freeze anti-snowberg termination on the transmission line of electricity of span(1)And coordinate monitoring center(5)It is common to realize, it is anti-freeze to prevent covering Snow termination(1)On-line monitoring transmission line of electricity(3)Ambient temperature, humidity and wind speed, to judge whether to generate bar with sleet Part, monitors snow degree using intelligent video, when judging sleet to occur or snows, anti-freeze anti-snowberg termination(1)From Dynamic operation, produces mechanical vibration as extrinsic motivated source, with transmission line of electricity(3)Resonance is produced, transmission line of electricity is prevented(3)Upper icing Or snowberg, so as to realize transmission line of electricity(3)Online Anti-ice-and-snow function, anti-freeze anti-snowberg termination(1)And Surveillance center (5)Between can carry out real time remote communication.
Anti-freeze anti-snowberg termination(1)Monitor to be likely to occur sleet or the snow situation that falls after, installed in transmission line of electricity (3)On Anti-ice-and-snow termination(1)Calculating tests out the transmission line of electricity(3)Eigentone, start Anti-ice-and-snow work When, produce and transmission line of electricity(3)Eigentone identical mechanical vibration as extrinsic motivated source, with transmission line of electricity (3)Resonance is produced, transmission line of electricity is prevented(3)Freeze or snowberg, realize intelligent, efficient online anti-freeze anti-snowberg work( Energy.
Anti-freeze anti-snowberg termination(1)Monitor may occur after sleet or situation of snowing, in proactive notification monitoring The heart(5), while Anti-ice-and-snow work is automatically turned on, and its working condition, collection in worksite parameter, Anti-ice-and-snow disposition is anti-in real time Feed Surveillance center.
Surveillance center(5)Collect multipoint data, judge sleet or fall to avenging scope, degree of generation etc., to including not installing Anti-freeze anti-snowberg termination(1)Near zone carry out early warning, notify that relevant department performs prevention preparation, and by phase Close data preserve as historical data to count, to analyze in the future, decision-making.
The preferable embodiment of the present invention is the foregoing is only, not to limit the present invention, all spirit in the present invention Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.

Claims (4)

1., using the online anti-freeze anti-snowberg method of transmission line of electricity of outer sharp resonance, anti-freeze anti-covered using install on the line Snow termination (1) and Surveillance center (5) realize jointly, it is characterised in that:The operation principle of the method is by installed in transmission of electricity Anti-freeze anti-snowberg termination (1) on-line monitoring transmission line of electricity (3) ambient temperature, humidity and wind speed on circuit (3), to sentence It is disconnected whether to there is sleet formation condition, monitor snow degree using intelligent video, it is anti-freeze when judging sleet to occur or snows Anti- snowberg termination (1) automatic running, produces mechanical vibration as extrinsic motivated source, and with transmission line of electricity (3) resonance, resistance are produced Only freeze or snowberg on transmission line of electricity (3), so as to realize the online Anti-ice-and-snow function of transmission line of electricity (3), by passive deicing to master It is dynamic anti-icing, it is anti-icing during without substantial amounts of energy loss, the anti-freeze anti-snowberg termination (1) and Surveillance center (5) it Between can carry out real time remote communication.
2. the online anti-freeze anti-snowberg method of the transmission line of electricity using outer sharp resonance according to claim 1, its feature exists In:The anti-freeze anti-snowberg termination (1) installed on the line tests and calculates the intrinsic vibration frequency of the transmission line of electricity (3) Rate, when starting Anti-ice-and-snow work, produces and swashs as additional with the mechanical vibration of the eigentone identical of transmission line of electricity (3) Source is encouraged, with transmission line of electricity (3) resonance is produced, prevent transmission line of electricity (3) from freezing or snowberg.
3. the online anti-freeze anti-snowberg method of the transmission line of electricity using outer sharp resonance according to claim 1, its feature exists In:Anti-freeze anti-snowberg termination (1) monitors may occur after sleet or situation of snowing, proactive notification Surveillance center (5), Anti-ice-and-snow work is automatically turned on simultaneously, and by its working condition, collection in worksite parameter, Anti-ice-and-snow disposition Real-time Feedback to prison Control center (5).
4. the online anti-freeze anti-snowberg method of the transmission line of electricity using outer sharp resonance according to claim 1, its feature exists In:Surveillance center (5) collects multipoint data, sleet is judged or the scope and degree of the snow generation that falls, to including not installing anti-freeze The near zone of anti-snowberg termination (1) carries out early warning, and related data is preserved as historical data to count in the future, Analysis, decision-making.
CN201410344184.3A 2014-07-18 2014-07-18 Online icing-prevention and snow-coverage-prevention method for electric transmission line by utilizing separate-excitation resonance Expired - Fee Related CN104065016B (en)

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CN106325109B (en) * 2015-06-19 2019-02-26 徐工集团工程机械股份有限公司 Deicing equipment autocontrol method, device and system
CN106101658A (en) * 2016-08-13 2016-11-09 哈尔滨理工大学 Shaft tower foreign body and disappearance intelligent video on-line monitoring system
CN106131501A (en) * 2016-08-13 2016-11-16 哈尔滨理工大学 Electric line foreign matter and disappearance intelligent video on-line monitoring system
DE102016116147A1 (en) * 2016-08-30 2018-03-01 Volkswagen Aktiengesellschaft Medium line of an internal combustion engine
CN111472945A (en) * 2020-03-23 2020-07-31 国家电投集团广西兴安风电有限公司 Wind-powered electricity generation field icing monitoring and early warning device based on electromagnetic resonance principle

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JPH06245337A (en) * 1993-02-19 1994-09-02 Hitachi Cable Ltd Power supply for transmission line relating machinery
JP2008154438A (en) * 2006-12-15 2008-07-03 Michio Takaoka Removal of snow and ice accretion on overhead transmission line
CN101325325A (en) * 2008-07-25 2008-12-17 敖彬仪 Method and apparatus for deicing of high voltage wire
CN201263076Y (en) * 2008-07-25 2009-06-24 敖彬仪 De-icing device for high-voltage line
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