CN102928757A - Insulator arc-over fault positioning device and positioning method based on discharging light detection - Google Patents
Insulator arc-over fault positioning device and positioning method based on discharging light detection Download PDFInfo
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- CN102928757A CN102928757A CN201210477981XA CN201210477981A CN102928757A CN 102928757 A CN102928757 A CN 102928757A CN 201210477981X A CN201210477981X A CN 201210477981XA CN 201210477981 A CN201210477981 A CN 201210477981A CN 102928757 A CN102928757 A CN 102928757A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Abstract
The invention discloses an insulator arc-over fault positioning device and a positioning method based on discharging light detection. The insulator arc-over fault positioning device comprises a micro-consumption pinhole camera, a solar battery, a storage battery, an image processing singlechip, a counting unit, a wireless transmission module, an image receiving unit and an alarm unit, wherein the micro-consumption pinhole camera is used for collecting insulator arc-over discharging light, the image processing singlechip is used for controlling the micro-consumption pinhole camera to collect parameters and analyze and judge whether arc-over discharging is incurred to an insulator according to a collecting result, the counting unit is used for counting the number of arc-over times, the wireless transmission module is used for transmitting an arc-over picture to the image receiving unit, the solar battery and the storage battery are used as power supply devices, the image receiving unit is used for receiving and storing the arc-over picture transmitted by the wireless transmission module and the alarm unit is used for transmitting an alarm signal. The insulator arc-over fault positioning device and the positioning method based on the discharging light detection have the advantages of intuitively and effectively positioning the insulator with arc-over fault, improving working efficiency of line walking personnel and shortening fault eliminating time.
Description
Technical field
The present invention relates to a kind of insulator arc-over fault locator and localization method.
Background technology
In existing high voltage power transmisson system, the insulator part that is absolutely necessary, it makes high voltage carry out mechanical stretching with the ground isolation and to power transmission line, has played and has supported power transmission line and prevent that electric current from returning the effect on ground.Along power transmission line, insulator quantity is very large, and kind is a lot, and it is very wide to distribute.The flashover ground faults such as its pollution flashover of insulator, wet sudden strain of a muscle, ice sudden strain of a muscle often occur.The cut-out flashover current in case insulator arc-over generation, isolating switch will be opened circuit can be closed a floodgate afterwards again.If reclosing is unsuccessful, need fast location faulty insulator, in time process so that power supply is reliable.Artificial line walking can be located the flashover insulator, but insulator quantity is large, distribution area is wide, power off time is long, trouble-shooting point difficulty, and hunting engineering technical personnel labour intensity is large, has the fast problem of location that is difficult to.Therefore be necessary to invent a kind of instrument and equipment, alleviate the work on the spot amount of fault inspection, increase work efficiency, accurately and timely find the trouble spot, reduce because the insulator chain flashover causes that the erroneous judgement of tripping operation is disconnected, shorten the time of Failure elimination.
Patent CN88211694.0(insulator chain flashover colour indicator) announced the colored indicating device of a kind of high voltage circuit insulator chain flashover in service, it can accurately reflect the position of arcing fault point, and energy display color sign, the tour personnel just can be observed on ground or helicopter, thereby alleviate the work on the spot amount of fault inspection, increase work efficiency, accurately and timely find the trouble spot.Patent CN02230975.6(flashover indicator for isolator of high-voltage power line) utilizes the short-circuit current sensor, trigger the indicating member of pressure injection device by the insulator arc-over signal, spray colored ribbon outside the chamber and be hung out under the indicator, the staff need not step on bar, can confirm the arcing fault point according to the colored ribbon of ejection on ground, reduce loss of outage and improved the ultra-high-tension power transmission line reliability of operation.Patent 201020242577(magnetic induction insulator flashover fault indicator) utilize magnetic induction ring, warning weight etc. to make flashover current allow the fault detector ejection indicate with colored ribbon and to be hung out under the indicator, the staff need not step on bar, can confirm the arcing fault point according to the colored ribbon of ejection on ground, can seek problem by fine solution line fault of electrical power system, a kind of strong means are provided for increasing work efficiency, alleviate intensity of workers, but when arcing fault occured repeatedly insulator, colored ribbon/colored indicating device can not be indicated repetition flashover number of times.
Patent 201020170112(insulator flashover grounding warning piezometer ring) utilize the grading ring ring body outside to be provided with meltable eye-catching layer, when flashover appears in insulator, electrical discharge arc is so that meltable eye-catching layer fusing or burning, malfunction elimination person just can significantly see the flashover position on ground, has saved a large amount of manpower and materials.The patent CN2399805(high-tension insulator that can indicate arcing fault) applies organic and inorganic composite materials at the high-tension insulator porcelain patticoat, form one deck coverlay; Its color and porcelain patticoat matrix color have obvious difference; After arcing fault occured, coverlay was burnt by high arc temperature, and it is obviously different from the coverlay primary colors that the porcelain patticoat color is exposed by institute, and indicated arcing fault with this; But artificial line walking workload is large.
Patent CN2121032(insulator twinkle displayer) adopts electromagnetic principle, utilize static iron core and attract armature to consist of flux circuit, sensing arcing fault signal, utilize and attract armature to drive the display board action, make sensing and driving turn to one, trouble-shooting point difficulty, the problem that hunting engineering technical personnel labour intensity is large have been solved because the suspended insulator flashover causes the power off time of short circuit long.Patent CN2251144(disc type isolator flash over recording indicator) utilize the striking circle that the electromagnetic energy converter is flow through in the guiding of insulator arc-over electric current, drive transmission indicating mechanism action record, conveniently look into rapidly out of order insulator chain, minimizing improves the reliability of whole High voltage output electric line because of the loss that line outage causes.Patent CN2054909(insulator contamination point (flashover point) indicator) utilize the dish that dams of going up most on the insulator chain that is contained in transmission line of electricity on a slice insulator cap that the flashover short-circuit current is incorporated into signal meter (SM), make the fusible link fusing of signal meter (SM), expose bright-coloured checkmark field, show obvious signal.But striking circle in this patent/dam dish may be so that the Electric Field Distribution on the insulator chain changes to some extent, and fusible link can only move once, can not indicate the repetition flashover, and inconvenience changed.
Above patent is all carried out the flashover indication in flashover insulator this locality, although more direct and clear and definite to the flashover indication, still need artificial line walking, operation maintenance personnel workload is still very large.
Patent CN200620154557.1(transmission line insulator flashover malfunction monitoring locating device) comprise high current warning circuit, power supply and management circuit thereof, analog-to-digital conversion module, chip microprocessor, clock circuit and micro power consumption wireless communication module, described power supply and management circuit thereof are responsible for to whole device power supply; The micro power consumption wireless communication module is connected with the communication interface of chip microprocessor, is responsible for the sending and receiving of data; Clock circuit is connected with chip microprocessor by the I2C bus, as the inner real-time clock of device, to determine time of failure; The voltage of battery is passed to microprocessor with data in the simulation output of analog-to-digital conversion module sampling high current warning circuit and power supply and the management circuit thereof after analog/digital conversion, and the flashover information wireless is sent to network.The present invention can count, and alleviates the work on the spot amount of fault inspection, increases work efficiency, and accurately and timely finds the trouble spot, reduces because the insulator chain flashover causes that the erroneous judgement of tripping operation is disconnected, shortens the time of Failure elimination, significantly strengthens economic benefit.Patent CN2597997(flashover telemetering system for isolator for high-voltage transmission line) utilize the insulator arc-over information launcher of solar cell for supplying power to link to each other by wireless communication networks with the insulator arc-over information receiver, the information such as the time of remote transmission high-voltage transmission line insulator flashover, place and flashover reason fundamentally solve and rely on workman's line walking, step on the problem that bar is searched flashover point.Because line insulator quantity is very big, this patent cost is too high, and the insulator arc-over fault is not directly perceived.And, use microelectronic circuit in the patent, be vulnerable to move the interference of on-the-spot corona and flashover transient state highfield etc., for strengthening the reliability of whole system, the EMC Design of system is complicated, and cost is high.
Therefore, it is directly perceived to be badly in need of a kind of energy, automatically detects cheaply the locating device of judging the insulator arc-over fault.
Summary of the invention
In view of this, one of purpose of the present invention is to provide a kind of insulator arc-over Fault Locating Method that detects based on discharging light.
For achieving the above object, the invention provides following technical scheme: a kind of insulator arc-over Fault Locating Method that detects based on discharging light may further comprise the steps: 1) utilize the camera head that is arranged on each insulator place to gather each insulator surface illuminated message; 2) collection result in the step 1) is analyzed, judged whether each insulator the flashover discharge occurs; Its determination methods is: each the frame picture that gathers real-time analysis step 1), and dimmed again subsequently if some the regional grey scale pixel value in the picture of certain insulator is set threshold values by secretly brightening and surpassing suddenly, just judge this insulator generation flashover discharge; 3) when insulator generation arcing fault, the flashover number of times is counted, and sent failure message to the office terminal; 4) office terminal receives the failure message that the arcing fault insulator occurs, and shows the locating information of this insulator, starts simultaneously alarm unit and sends alerting signal to the staff.
Further, the camera head described in the step 1) of said method adopts little power consumption pinhole cameras.
Further, mobile phone or network computer are adopted in the office terminal in the said method.
Two of purpose of the present invention is to provide a kind of insulator arc-over fault locator that detects based on discharging light.
The described insulator arc-over fault locator that detects based on discharging light comprises little power consumption pinhole cameras, solar cell and battery pack, image processing single chip, counting unit, wireless sending module, image receiving unit, alarm unit; Described little power consumption pinhole cameras is used for Real-time Collection insulator arc-over discharging light; Described image processing single chip be used for controlling little power consumption pinhole cameras acquisition parameter and according to collection result analysis judge whether insulator flashover occurs discharge; Described counting unit is used for the flashover number of times is counted; Described wireless sending module is used for sending the flashover picture to image receiving unit; Described solar cell and battery pack are used for little power consumption pinhole cameras, image processing single chip, counting unit and wireless sending module power supply; Described image receiving unit is used for receiving and storing the flashover picture that wireless sending module sends, and sends alerting signal according to the information startup alarm unit that receives.
Further, described wireless sending module adopts the GPRS wireless module.
Further, described image receiving unit adopts mobile phone or network computer.
Further, described image processing single chip can be processed the mobile object image that collects, and sends prompting message by wireless sending module to image receiving unit.
Beneficial effect of the present invention is: 1. the present invention is by judging flashover, send flashover picture and output alarm etc. insulator surface video recording and analysis, intuitively locate rapidly and accurately the arcing fault insulator, solved the problem that hunting engineering technical personnel labour intensity is large, be difficult to quick location, improved work efficiency, reduced because the insulator chain flashover causes the erroneous judgement of tripping operation and broken, shorten the time of Failure elimination, significantly strengthened economic benefit.2. the present invention adopts the light isolation, the Transient Electromagnetic that microelectronic circuit is subject to is disturbed little, functional reliability is high, and simultaneously the present invention can also increase in the image processing Single Chip Microcomputer (SCM) program the identification of mobile object and control function far away, plays supervisory function bits such as electric power facilities anti-theft and icing.
Description of drawings
In order to make purpose of the present invention, technical scheme and beneficial effect clearer, the invention provides following accompanying drawing and describe:
Fig. 1 is the structural representation of the insulator arc-over fault locator that detects based on discharging light of the present invention;
Fig. 2 is the workflow diagram of the insulator arc-over Fault Locating Method that detects based on discharging light of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
Fig. 1 is the structural representation of the insulator arc-over fault locator that detects based on discharging light of the present invention, comprises little power consumption pinhole cameras, solar cell and battery pack, image processing single chip, counting unit, wireless sending module, image receiving unit and alarm unit; For simplicity, little power consumption pinhole cameras, solar cell and battery pack, image processing single chip, counting unit and the wireless sending module at some electric power pylons place have only been described in the drawings, above-mentioned parts also arrange at other each electric power pylon places, and image receiving unit and alarm unit are as remote equipment, quantity can select to adopt 1 image receiving unit and 1 alarm unit, can be arranged in staff's the workplace; Wherein, little power consumption pinhole cameras is used for each insulator arc-over discharging light of Real-time Collection, namely realizes the Real-Time Monitoring to insulator; The image processing single chip be used for controlling little power consumption pinhole cameras acquisition parameter and according to collection result analysis judge whether insulator flashover occurs discharge; Counting unit is used for the flashover number of times is counted, and wireless sending module is used for sending the flashover picture to image receiving unit; Solar cell and battery pack are used for little power consumption pinhole cameras, image processing single chip, counting unit and wireless sending module power supply; Image receiving unit is used for receiving and storing the flashover picture that wireless sending module sends, and shows locating information, starts simultaneously alarm unit and sends alerting signal.
Described little power consumption pinhole cameras can adopt one or more, be installed on aerial earth wire below, electric power pylon top different parts, camera lens is downward, avoids the direct incident camera of the sun and thunder and lightning light, simultaneously the convenient discharge of observing insulator surface from all angles.
Described image processing single chip is at first controlled the parameters such as little power consumption pinhole cameras sampling rate, time shutter, then each frame picture of gathering of real-time analysis, if the regional grey scale pixel value of some in the picture is set threshold values by secretly brightening and surpassing suddenly, dimmed again subsequently, just judge insulator generation flashover discharge and count in this locality; Concrete determination methods is: at first, if become a fine day the sun, the possibility of insulator generation flashover is very low; Secondly, glass insulator and porcelain insulator are owing to the light duration that any surface finish is reflected into camera is longer, and the flashover lighting time interval is very short; Again, if at a distance because thunder and lightning is luminous, its brightness is darker; And the light by the reflection of insulator smooth finish surface presents little block hot spot and the curve-like arclight occurs unlike insulator arc-over.
Described counting unit and wireless sending module are after image processing single-chip microcomputer analysis judgement obtains insulator generation flashover result, carry out this locality counting and send the flashover picture to image receiving unit, wireless transmitter module can adopt the wireless transport module commonly used that comprises the GPRS module.
Described solar cell and battery group capacity should be enough large, guarantee to run without interruption during insulator arc-over at cloudy day or night.
Described image receiving unit is used for receiving and storing the flashover picture that wireless sending module sends, and shows locating information to the staff, starts simultaneously alarm unit and sends alerting signal; Image receiving unit can adopt the terminals such as mobile phone or network computer, alarm unit can adopt audible-visual annunciator, the staff can utilize these terminal devices realizations to the Real Time Monitoring of insulator arc-over fault easily, and processes rapidly according to alerting signal.
Improvement as present embodiment, in the image processing Single Chip Microcomputer (SCM) program, increase the recognition function to mobile object, the image processing single chip can be processed the mobile object image that collects, and send prompting message by wireless sending module to image receiving unit, so just play supervisory function bits such as electric power facilities anti-theft and icing.
Explanation is at last, above preferred embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can make various changes to it in the form and details, and not depart from claims limited range of the present invention.
Claims (7)
1. insulator arc-over Fault Locating Method that detects based on discharging light is characterized in that: may further comprise the steps:
1) utilize the camera head that is arranged on each electric power pylon top to gather each insulator surface illuminated message;
2) collection result in the step 1) is analyzed, judged whether each insulator the flashover discharge occurs; Its determination methods is: each the frame picture that gathers real-time analysis step 1), and dimmed again subsequently if some the regional grey scale pixel value in the picture of certain insulator is set threshold values by secretly brightening and surpassing suddenly, just judge this insulator generation flashover discharge;
3) when insulator generation arcing fault, the flashover number of times is counted, and sent failure message to the office terminal;
4) office terminal receives the failure message that the arcing fault insulator occurs, and shows the locating information of this insulator, starts simultaneously alarm unit and sends alerting signal to the staff.
2. the insulator arc-over Fault Locating Method that detects based on discharging light according to claim 1, it is characterized in that: the camera head described in the step 1) adopts little power consumption pinhole cameras.
3. the insulator arc-over Fault Locating Method that detects based on discharging light according to claim 1 and 2 is characterized in that: described office terminal employing mobile phone or network computer.
4. an insulator arc-over fault locator that detects based on discharging light is characterized in that: comprise little power consumption pinhole cameras, solar cell and battery pack, image processing single chip, counting unit, wireless sending module, image receiving unit and alarm unit; Described little power consumption pinhole cameras is used for Real-time Collection insulator arc-over discharging light; Described image processing single chip be used for controlling little power consumption pinhole cameras acquisition parameter and according to collection result analysis judge whether insulator flashover occurs discharge; Described counting unit is used for the flashover number of times is counted; Described wireless sending module is used for sending the flashover picture to image receiving unit; Described solar cell and battery pack are used for little power consumption pinhole cameras, image processing single chip, counting unit and wireless sending module power supply; Described image receiving unit is used for receiving and storing the flashover picture that wireless sending module sends, and starts alarm unit according to the information that receives; Described alarm unit is used for sending alerting signal to the staff.
5. the insulator arc-over fault locator that detects based on discharging light according to claim 4 is characterized in that: described wireless sending module employing GPRS wireless module.
6. according to claim 4 or the 5 described insulator arc-over fault locators that detect based on discharging light, it is characterized in that: described image receiving unit adopts mobile phone or network computer.
7. according to claim 4 or the 5 described insulator arc-over fault locators that detect based on discharging light, it is characterized in that: described image processing single chip can also be processed the mobile object image that collects, and sends prompting message by wireless sending module to image receiving unit.
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| CN103278745A (en) * | 2013-05-31 | 2013-09-04 | 国家电网公司 | Line fault live-action collecting and processing method based on wireless mobile terminal |
| CN103499774A (en) * | 2013-07-09 | 2014-01-08 | 贺贵明 | Electricity transmission insulator arc-over on-line monitoring and safety early-warning device |
| CN103558505A (en) * | 2013-10-23 | 2014-02-05 | 国家电网公司 | Method and device for detecting line flashover fault |
| CN103675603A (en) * | 2013-12-03 | 2014-03-26 | 国网河南省电力公司商丘供电公司 | Insulator breakdown indicator |
| CN105093067A (en) * | 2015-08-24 | 2015-11-25 | 国网天津市电力公司 | Intelligent remote fault indicating system |
| CN105182179A (en) * | 2015-08-24 | 2015-12-23 | 国网天津市电力公司 | Intelligent remote visual fault indication system |
| CN105277856A (en) * | 2015-11-20 | 2016-01-27 | 重庆理工大学 | Crosslinked polyethylene cable connector discharge fault monitoring system and fault classification method |
| CN106027999A (en) * | 2016-07-18 | 2016-10-12 | 哈尔滨理工大学 | Intelligent video monitoring system for internal state of electric cabinet |
| CN108037411A (en) * | 2017-12-04 | 2018-05-15 | 国网江苏省电力有限公司检修分公司 | A kind of transmission line of electricity hidden danger electric discharge method for early warning |
| CN108169642A (en) * | 2018-01-15 | 2018-06-15 | 国网山东省电力公司潍坊供电公司 | Transmission line of electricity discharging fault localization method and monitoring device based on magnetic field mutation |
| CN110146795A (en) * | 2019-06-05 | 2019-08-20 | 国网黑龙江省电力有限公司电力科学研究院 | The device that a kind of pair of insulator arc-over failure is detected automatically |
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| CN103278745A (en) * | 2013-05-31 | 2013-09-04 | 国家电网公司 | Line fault live-action collecting and processing method based on wireless mobile terminal |
| CN103499774A (en) * | 2013-07-09 | 2014-01-08 | 贺贵明 | Electricity transmission insulator arc-over on-line monitoring and safety early-warning device |
| CN103499774B (en) * | 2013-07-09 | 2016-03-02 | 武汉双微电气科技有限公司 | Transmission of electricity insulator arc-over in-service monitoring safety early warning device |
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