CN104655182A - Monitoring method for monitoring state of overhead power transmission line by using satellite precise positioning system - Google Patents
Monitoring method for monitoring state of overhead power transmission line by using satellite precise positioning system Download PDFInfo
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- CN104655182A CN104655182A CN201410518051.3A CN201410518051A CN104655182A CN 104655182 A CN104655182 A CN 104655182A CN 201410518051 A CN201410518051 A CN 201410518051A CN 104655182 A CN104655182 A CN 104655182A
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Abstract
The invention discloses a monitoring method for monitoring the state of an overhead power transmission line by using a satellite precise positioning system. The method comprises the following steps: mounting a satellite positioning and receiving terminal in a position, to be monitored, of the overhead power transmission line, collecting GPS coordinate values of various monitoring points of the overhead power transmission line in a normal state, a limit wind deflection state and an icing state by using the satellite positioning and receiving terminal, recording into the monitoring system as reference values and alarm threshold values, periodically sending monitoring data when the alarm threshold values are not exceeded, and improving data collection frequency according to monitoring needs when the alarm threshold values are exceeded to achieve real-time monitoring of the state of the overhead power transmission line.
Description
Technical field
The present invention relates to a kind of monitoring method utilizing satellite Precise Position System to monitor overhead transmission line line state, belong to intelligent power grid technology field.
Background technology
Intelligent grid (SmartPowerGrids), it is exactly the intellectuality of electrical network, be also referred to as " electrical network 2.0 ", it is based upon on the basis of integrated, high-speed bidirectional communication network, by the application of the decision support system (DSS) technology of the sensing of advanced person and measuring technique, advanced equipment and technology, advanced control method and advanced person, realize the target of reliable, safety, the economy of electrical network, efficient, environmental friendliness and use safety; Solution mainly comprises the following aspects: one is connect assets and equipment raising digitized degree by sensor; Two is the integration system of data and the collection system of data; Three is the abilities carrying out analyzing, and namely carries out correlation analysis, with optimizing operation and management according to the data grasped.
Compared with existing electrical network, intelligent grid embodies the distinguishing feature that flow of power, information flow and Business Stream height merge, its advance and advantage are mainly manifested in: infotech, sensor technology, automatic control technology and electrical network infrastructure organically blend, the panoramic information of electrical network can be obtained, Timeliness coverage, predict contingent fault.When fault occurs, electrical network can isolated fault fast, teaching display stand recovery, thus avoids the generation of large-area power-cuts.The integrated use of communication, information and modern management technology, will improve power equipment service efficiency greatly, reduce electric energy loss, make operation of power networks more economically and efficiently.Realize in real time and the height of non-real-time information integrated, share and utilize, be that comprehensive, complete and meticulous power grid operation constitutional diagram is shown in operational management, while corresponding aid decision making support, control embodiment and contingency plan can be provided.
The impacts such as overhead transmission line is exposed in atmospheric environment, directly can be subject to the effect of meteorological condition, the flood that may run into when must have certain physical strength to adapt to local temperature Change, strong storm invasion and attack, icing load and to cross over rivers.Meanwhile, lightning attacks, drenches with rain, wet fog and nature and the industry dielectric strength also all destroying or reduce overhead transmission line such as filthy even cause power outage.Also there is electromagnetic environment interference problem in overhead transmission line.These factors all must take in the design of overhead transmission line, operation and maintenance.In order to avoid overhead transmission line self is because of design, various failure damages under construction reason and extremely physical environment, intelligent power grid technology have employed various sensor, modern communication technology and the information processing technology possess transmission line of electricity running state real-time monitoring function to overhead transmission line, realize transmission line of electricity line increase-volume monitoring again, monitoring transmission line icing, lead wire and earth wire aeolian vibration is monitored, power transmission circuit caused by windage is monitored, conductor temperature, sag is monitored, transmission line of electricity weather environment is monitored, transmission line of electricity image/video monitoring, insulator dirty degree is monitored, shaft tower inclination on-line monitoring, construct and transmission line of electricity running status is monitored, early warning, auxiliary decision, the hardware and software platform of data analysis.
Existing overhead transmission line condition monitoring system is because the project difference that need monitor have employed different sensors, as windage yaw monitoring device needs setting angle sensor; Equivalent ice covering thickness intelligent monitoring device need install pulling force sensor, air velocity transducer, wind transducer, temperature sensor, humidity sensor, angular transducer; Sag monitoring device needs mounted angle sensor, temperature sensor, radar range finding sensor, laser range sensor; Shaft tower inclination on-Line Monitor Device need install shaft tower transverse direction and longitudinal inclination sensor; Aero-vibration monitoring device collection need install aeolian vibration monitoring sensor.The data of all the sensors collection need be delivered to control center by wireless telecommunications or special electric power optical fiber, and for analysis decision, communication trunk network also will be set up in telecommunications or the bad isolated area of movable signal.And equivalent ice covering thickness intelligent monitoring device, sag monitoring device also will install video monitoring, although compress image, but because its file data amount is large, transmission occupied bandwidth is excessive, and effect is desirable not to the utmost, except the impact of the self reason such as focal length, device damage, be subject to sleet mist and the extreme meteorological impact such as freezing.
In addition, as same shaft tower need arrange different monitoring device, shaft tower takes up room greatly, and each system can influence each other, and construction is not easily implemented.Owing to have employed different Sensor monitorings data source separately, when communication, various data are not easily integrated, respective wireless or optical fiber telecommunications system need be set up respectively, be equipped with the sun power, wind-powered electricity generation, the induction electricity getting system that are applicable to various sensor and communication system thereof, make checkout equipment daily servicing difficulty, maintainer also must grasp various Fundamentals of Supervisory Systems to carry out fault handling, so personnel qualifications is high.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of construction cost low, safeguard, the simple to operate monitoring method utilizing satellite Precise Position System to monitor overhead transmission line line state, can the deficiencies in the prior art be overcome.
Technical scheme of the present invention is: the monitoring method utilizing satellite Precise Position System to monitor overhead transmission line line state needs monitoring location to install satnav receiving terminal at overhead transmission line, and when gathering normal condition, limit windage yaw state, ice coating state the gps coordinate value typing monitoring system of each monitoring point of overhead transmission line as reference value and alarming threshold value, regularly send Monitoring Data when not super alarm threshold value like this, need to improve data acquiring frequency according to monitoring when exceeding alarm threshold value and reached Real-Time Monitoring to overhead transmission line line state.
Described overhead transmission line needs monitoring location to comprise transmission line of electricity, shaft tower, wire jumper, ground wire, insulator chain, satnav receiving terminal adopts the relative positioning method of a terminal multi-antenna technology, satellite positioning-terminal and reference antenna are arranged on shaft tower, and monitoring aerial is connected on transmission line of electricity, wire jumper, ground wire, insulator chain.
Satnav receiving terminal placement technology used is Global Positioning System (GPS)+terminal multi-antenna technology+exact algorithm.
The satnav receiving terminal distinctive SMS of communication first-selection " Big Dipper " navigational system used transfers to monitoring system with short message form, decreases the dependence to wireless telecommunications and optical-fibre communications, realizes the communication of low cost high information quantity.
Compared with the prior art, in order to solve the deficiency of existing aerial high-voltage power transmission line on-line monitoring equipment, in conjunction with the satellite navigation placement technology reached its maturity, realize a kind of technology to monitor multinomial monitoring objective, invent and utilized satellite navigation placement technology to monitor coated by ice of overhead power transmission line, sag, windage yaw, aeolian vibration, the status monitoring new methods such as shaft tower inclination, can realize after adopting the method adopting a set of equipment to coated by ice of overhead power transmission line, sag, windage yaw, aeolian vibration, the monitoring projects such as shaft tower inclination real-time, accurately (precision grade) monitoring, its monitoring accuracy is much higher than existing various methods.In addition, owing to only adopting a kind of technology to carry out entry monitoring, system difficulty will reduce at double, and operation maintenance personnel competency profiling is corresponding reduction also, and Maintenance and Repair are relatively easy; Adopt a terminal multi-antenna technology can realize a satellite receiving terminal to monitor multiple projects such as coated by ice of overhead power transmission line, sag, windage yaw, aeolian vibration, shaft tower inclinations, equipment investment can be saved at double, be conducive to spread; Finally, the short message featured function of " Big Dipper " satellite navigation system can be utilized to send immediate status information to System Control Center, the free communication of realization that also can be very unobstructed in the region of moving, telecommunication signal can not cover.
Its effect major embodiment is as follows
(1) precision is high, owing to have employed satellite accurate positioning method, systematic error is only grade, enough meets the monitoring requirement of the changes of three dimensions geometric parameter such as span more than 100 meters coated by ice of overhead power transmission line, sag, windage yaw, aeolian vibration, shaft tower inclination;
(2) data transfer mode is versatile and flexible, takies communication space few, and not by the impact of wireless communication signals covering space;
(3) system is simple and reliable, can realize the on-line monitoring of the multinomial data of terminal, install, maintenance, easy to maintenance;
(4) adopt triangular web to monitor multiple data, can reduce investment outlay at double, be conducive to electric system spread;
(5) not by extreme weather conditions (strong wind, icing, typhoon, heavy rain, sand and dust) impact, the drawback cannot observed under avoiding video acquisition system unfavourable weather condition;
(6) the modularization compatibility of transmission line of electricity line increase-volume monitoring again, the monitoring of transmission line of electricity weather environment, conductor temperature monitoring, insulator dirty degree monitoring can be realized, the Monitoring Data of above-mentioned monitoring system is integrated, the distinctive SMS of " Big Dipper " navigational system is utilized to transfer to control center with short message form, decrease the dependence to wireless telecommunications and optical-fibre communications, realize the communication of low cost high information quantity.
Embodiment
embodiment,overhead power transmission line pole tower arranges system power supply, satellite precision navigation terminal and communication system, power-supply system, on transmission line of electricity, shaft tower, wire jumper, ground wire, insulator chain, higher-sensitivity antenna is installed according to monitoring project, in order to monitor the projects such as coated by ice of overhead power transmission line, sag, windage yaw, aeolian vibration, shaft tower inclination, in normal conditions (calm, without snow and ice cover, without overtemperature, Wu's overload) measure each monitored item destination data as reference value.The prompting of each monitoring project, early warning, alarm threshold value are set when considering system accuracy error, warning startup scope is set.Regularly do not send Monitoring Data during super alarm threshold value, need to improve data acquiring frequency according to monitoring when exceeding alarm threshold value, signal is transferred to control center, for analysis decision by " Big Dipper " navigational system short message form or movement, telecommunications short message form.Whole process is equivalent to be provided with three-dimensional a, precision and be millimetre-sized ruler, and at any time the space three-dimensional data of this ruler measurement be sent to control center, in time for dispatcher's analysis decision need monitor position.
the present invention is by GPS position application to intelligent grid, be concretely bysatnav receiving terminal is arranged on overhead transmission line and needs monitoring location, this position comprises transmission line of electricity, shaft tower, wire jumper, ground wire, insulator chain etc., satnav receiving terminal adopts the relative positioning method of a terminal multi-antenna technology, satellite positioning-terminal and reference antenna are arranged on shaft tower specifically, and monitoring aerial is connected on transmission line of electricity, wire jumper, ground wire, insulator chain.
Satnav receiving terminal placement technology used is Global Positioning System (GPS)+terminal multi-antenna technology+exact algorithm.
The preferred Big Dipper of Global Satellite Precise Position System that satnav receiving terminal relies on, triones navigation system carries distinctive SMS and transfers to monitoring system with short message form, decrease the dependence to wireless telecommunications and optical-fibre communications, realize the communication of low cost high information quantity.
Satnav receiving terminal power supply used is equipped with solar charging device, after the setting of satnav receiving terminal is put in place, gather the gps coordinate value typing monitoring system of overhead transmission line each monitoring point when normal condition, limit windage yaw state, ice coating state as reference value and alarming threshold value, regularly send Monitoring Data when not super alarm threshold value like this, need to improve data acquiring frequency according to monitoring when exceeding alarm threshold value and reached Real-Time Monitoring to overhead transmission line line state.
Satnav receiving terminal adopts a terminal multi-antenna technology
principle and algorithm (reason that precision is high) carrier phase:
represent geometric delay, receiver clock-offsets, satellite clock correction, atmosphere delay and ionosphere delay respectively.Represent multipath delay, antenna phase change, phase place winding, phase place initial value and complete cycle phase ambiguity respectively.Double antenna baseline phase is poor:
eliminate (Short baseline),
f 0be incorporated to float ambiguities,
f pcvalso eliminate when double antenna orientation is identical, only remaining baseline resultant multipath.
Claims (4)
1. the monitoring method utilizing satellite Precise Position System to monitor overhead transmission line line state, it is characterized in that: the method needs monitoring location to install satnav receiving terminal at overhead transmission line, and gather normal condition with satnav receiving terminal, limit windage yaw state, during ice coating state, the gps coordinate value typing monitoring system of each monitoring point of overhead transmission line is as reference value and alarming threshold value, regularly Monitoring Data is sent like this when not super alarm threshold value, need to improve data acquiring frequency according to monitoring when exceeding alarm threshold value and reach Real-Time Monitoring to overhead transmission line line state.
2. the monitoring method utilizing satellite Precise Position System to monitor overhead transmission line line state according to claim 1, it is characterized in that: described overhead transmission line needs monitoring location to comprise transmission line of electricity, shaft tower, wire jumper, ground wire, insulator chain, satnav receiving terminal adopts the relative positioning method of a terminal multi-antenna technology, satellite positioning-terminal and reference antenna are arranged on shaft tower, and monitoring aerial is connected on transmission line of electricity, wire jumper, ground wire, insulator chain.
3. the monitoring method utilizing satellite Precise Position System to monitor overhead transmission line line state according to claim 1, is characterized in that: satnav receiving terminal placement technology used is Global Positioning System (GPS)+terminal multi-antenna technology+exact algorithm.
4. the monitoring method utilizing satellite Precise Position System to monitor overhead transmission line line state according to claim 1, it is characterized in that: the communication used of satnav receiving terminal transfers to monitoring system for the distinctive SMS of " Big Dipper " navigational system with short message form, decrease the dependence to wireless telecommunications and optical-fibre communications, realize the communication of low cost high information quantity.
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| CN106197747A (en) * | 2016-07-08 | 2016-12-07 | 北京环宇博远科技发展有限公司 | The power overhead network monitoring temperature sensor circuit of a kind of duplicate supply pattern and temp measuring method |
| CN108343844A (en) * | 2017-01-24 | 2018-07-31 | 中国石油化工股份有限公司 | A kind of Multi-parameter modularized oil-gas pipeline safety monitoring system and method |
| CN108490453A (en) * | 2018-02-06 | 2018-09-04 | 杭州中科微电子有限公司 | A kind of aerial high-voltage electric wire lodging monitoring method and monitoring device |
| CN108534653A (en) * | 2018-06-26 | 2018-09-14 | 深圳市北斗云信息技术有限公司 | A kind of multi-antenna set GNSS system for monitoring displacement and monitoring method |
| CN108981825A (en) * | 2018-09-07 | 2018-12-11 | 福建海峡北斗导航科技研究院有限公司 | A kind of transmission tower monitoring device based on NB-loT, system and method |
| CN109029705A (en) * | 2018-07-24 | 2018-12-18 | 广西电网有限责任公司电力科学研究院 | Conducting wire aero-vibration monitoring device based on big-dipper satellite positioning |
| CN110285784A (en) * | 2019-07-10 | 2019-09-27 | 广东星舆科技有限公司 | A kind of monitoring method and monitoring system of iron tower deformation |
| CN110514157A (en) * | 2019-07-23 | 2019-11-29 | 贵州电网有限责任公司 | A kind of electric power line ice-covering thickness detection method based on Beidou high accuracy positioning |
| CN112393712A (en) * | 2020-11-16 | 2021-02-23 | 云南电网有限责任公司昆明供电局 | Power transmission line insulator string inclination monitoring system and method based on satellite positioning |
| CN112484623A (en) * | 2020-12-01 | 2021-03-12 | 中电科西北集团有限公司 | Galloping numerical value acquisition method for power transmission line |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197747A (en) * | 2016-07-08 | 2016-12-07 | 北京环宇博远科技发展有限公司 | The power overhead network monitoring temperature sensor circuit of a kind of duplicate supply pattern and temp measuring method |
| CN108343844A (en) * | 2017-01-24 | 2018-07-31 | 中国石油化工股份有限公司 | A kind of Multi-parameter modularized oil-gas pipeline safety monitoring system and method |
| CN108490453A (en) * | 2018-02-06 | 2018-09-04 | 杭州中科微电子有限公司 | A kind of aerial high-voltage electric wire lodging monitoring method and monitoring device |
| CN108534653A (en) * | 2018-06-26 | 2018-09-14 | 深圳市北斗云信息技术有限公司 | A kind of multi-antenna set GNSS system for monitoring displacement and monitoring method |
| CN109029705A (en) * | 2018-07-24 | 2018-12-18 | 广西电网有限责任公司电力科学研究院 | Conducting wire aero-vibration monitoring device based on big-dipper satellite positioning |
| CN108981825A (en) * | 2018-09-07 | 2018-12-11 | 福建海峡北斗导航科技研究院有限公司 | A kind of transmission tower monitoring device based on NB-loT, system and method |
| CN108981825B (en) * | 2018-09-07 | 2021-02-23 | 福建海峡北斗导航科技研究院有限公司 | NB-loT-based transmission tower monitoring device, system and method |
| CN110285784A (en) * | 2019-07-10 | 2019-09-27 | 广东星舆科技有限公司 | A kind of monitoring method and monitoring system of iron tower deformation |
| CN110514157A (en) * | 2019-07-23 | 2019-11-29 | 贵州电网有限责任公司 | A kind of electric power line ice-covering thickness detection method based on Beidou high accuracy positioning |
| CN112393712A (en) * | 2020-11-16 | 2021-02-23 | 云南电网有限责任公司昆明供电局 | Power transmission line insulator string inclination monitoring system and method based on satellite positioning |
| CN112484623A (en) * | 2020-12-01 | 2021-03-12 | 中电科西北集团有限公司 | Galloping numerical value acquisition method for power transmission line |
| CN112484623B (en) * | 2020-12-01 | 2022-07-15 | 中电科西北集团有限公司 | Galloping numerical value acquisition method for power transmission line |
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