CN107817377A - It is a kind of to be set effective the hidden danger traveling wave detector device for suppressing interference outside based on sensor - Google Patents
It is a kind of to be set effective the hidden danger traveling wave detector device for suppressing interference outside based on sensor Download PDFInfo
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- CN107817377A CN107817377A CN201711143282.0A CN201711143282A CN107817377A CN 107817377 A CN107817377 A CN 107817377A CN 201711143282 A CN201711143282 A CN 201711143282A CN 107817377 A CN107817377 A CN 107817377A
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- 230000005611 electricity Effects 0.000 claims abstract description 43
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
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Abstract
The invention discloses a kind of based on the hidden danger traveling wave detector device that suppression interference is set effective outside sensor, on transmission line of electricity, it is characterized in that, surface-mounted integrated circuit, the power taking iron core for being powered to whole device including the hidden danger sensor for detecting circuit traveling wave, for travelling wave current amplification, filtering and conversion, the output end of the hidden danger sensor is connected by signal cable with the input of the surface-mounted integrated circuit, and the transmission line of electricity duct that the hidden danger traveling wave detector device is opened up by centre is arranged on transmission line of electricity.The present invention is capable of the power supply requirement of the sufficiently effective whole travelling wave current detection means of supply, avoids and provide external power supply or progress power-source maintenance and the trouble of maintenance by using iron core power taking technology；Effectively completely cut off the leakage field that power taking iron core brings during power taking by sensor external technologies to disturb, so that overriding original travelling wave current waveform, improve the accuracy and reliability of travelling wave current detection means.
Description
Technical field
The present invention relates to a kind of based on the hidden danger traveling wave detector device that suppression interference is set effective outside sensor, belong to power transmission line
The hidden danger travelling wave current detection technique field on road.
Background technology
Important component of the transmission line of electricity as power network, spread over the severe ring in the various fields such as city, rural area, forest
In border, and the increase with the operation time limit and surrounding environment influence, line insulator deterioration（Contamination and icing）, wire strand breakage
（Foreign matter adheres to）, gold utensil corrosion deformation, hand over span from deficiency the defects of hidden danger be all objective reality, such as find and give not in time
To eliminate, it would be possible to cause the accidents such as line tripping, conductor cord disconnection, part accident causes larger security implication to power system
And economic loss.
Common transmission line of electricity hidden danger includes composite insulator deterioration, wire gold utensil floats electric discharge, vegetation is discharged, insulator is dirty
Sudden strain of a muscle, insulator rupture etc..Pertinent literature shows that above hidden danger in evolution, can produce discharge current, and its frequency is higher,
It can be transmitted on transmission line of electricity in a manner of traveling wave.
The defects of current power transmission circuit, hidden danger relied primarily on artificial periodically patrolling method to find, this method not only needs greatly
The manpower of amount, and inspection hidden danger point largely relies on the experience of staff, and efficiency and accuracy be not high, far from
The requirement of power network intelligent management level can be met.In recent years, developing rapidly with data acquisition and the communication technology, hidden danger prison
The new method of survey is also arisen at the historic moment, such as ultraviolet image method, infrared imaging method, pattern-recognition method, compared with Traditional Man line walking method, newly
Method not only significantly liberate manpower, while be also applied in engineering, promote transmission line of electricity hidden danger to monitor court
Real time implementation, intelligentized direction is developed, but its operating efficiency and cost input are unable to reach the requirement being widely popularized.
The content of the invention
Due to the diversity and complexity of transmission line of electricity running environment, substantial amounts of clutter, corona, hidden in transmission line of electricity be present
Trouble is put a little（Floating electric discharge, trees electric discharge, floating object, contaminant flashover）, circuit resonance and other all kinds clutters, it is difficult to distinguish
Know, easily the hidden danger traveling wave of harm transmission line of electricity is fallen to careless omission, leads to not investigate in time, it is even great to ultimately form failure
Security incident.If potential safety hazard existing for transmission line of electricity can not obtain timely, effective improvement, it is then not possible to ensure the peace of circuit
Row for the national games, not only entail dangers to electric power netting safe running, it is also possible to cause user to have a power failure, directly affect normal production, the resident of enterprise
Household electricity.Therefore, a kind of transmission line of electricity hidden danger traveling wave detector device of clutter reduction interference is needed badly.
For overcome the deficiencies in the prior art, the invention provides a kind of be set effective outside based on sensor to suppress the hidden of interference
Suffer from traveling wave detector device, for analyzing when transmission line of electricity has major safety risks, by hidden danger travelling wave current detection means,
The hidden danger travelling wave current in transmission line of electricity is gathered, the self-powered of whole hidden danger traveling wave detector device is met by power taking iron core to be needed
Ask, and use sensor external technologies, the leakage field interference that can effectively avoid power taking iron core from bringing, so as to effectively gather
Hidden danger current waveform in transmission line of electricity, improve the reliability and high efficiency of transmission line safety stable operation.
The present invention adopts the following technical scheme that：It is a kind of to be filled based on the hidden danger traveling wave detector that suppression interference is set effective outside sensor
Put, on transmission line of electricity, it is characterised in that including the hidden danger sensor for detecting circuit traveling wave, for travelling wave current
Amplification, the surface-mounted integrated circuit of filtering and conversion, the power taking iron core for being powered to whole device, the output of the hidden danger sensor
End is connected by signal cable with the input of the surface-mounted integrated circuit, and the hidden danger traveling wave detector device is opened up by centre
Transmission line of electricity duct be arranged on transmission line of electricity on.
As a kind of preferred embodiment, surface-mounted integrated circuit is encapsulated with power taking iron core by package casing, surface-mounted integrated circuit
The inside of package casing is encapsulated in power taking iron core, hidden danger sensor is arranged at the outside of package casing.
As a kind of preferred embodiment, hidden danger sensor is high frequency Rogowski coil sensor, is mainly coupled by circuit
Hidden danger travelling wave current signal in integration collection circuit.
As a kind of preferred embodiment, hidden danger sensor is shaped as semicircle.
As a kind of preferred embodiment, the material of hidden danger sensor is nanocrystalline.
As a kind of preferred embodiment, the outside of hidden danger sensor is provided with independent sensor outer housing, hidden danger sensing
Device 2 is fixedly installed in sensor outer housing.
As a kind of preferred embodiment, the material of sensor outer housing is ABS fire proofings.
As a kind of preferred embodiment, power taking iron core is spliced by two semicylinders；Power taking iron core surface is wound with
The Rogowski coil of certain number of turn,, can by faraday electromagnetic induction when power current of the transmission line of electricity by a certain size
A certain size electric current is formed in Rogowski coil, is powered by this electric current to whole hidden danger traveling wave detector device.
As a kind of preferred embodiment, the centre of semicylinder is provided with gap；When surrounding produces the magnetic field of alternation,
Leakage field generation is just had in power taking iron core, and is sent out the magnetic leakage signal of a certain size and frequency, it has been investigated that, defeated
At the electric line current peak moment, the magnetic leakage signal is relatively large, and is produced with the vibrations of power taking iron core and noise；Power taking iron core
Magnetic leakage signal caused by the transmission line of electricity current peak moment can to a certain degree with override the actual production of transmission line of electricity constantly
Raw transmission line of electricity hidden danger waveform, effective hidden danger travelling wave current signal is gathered to sensor and causes interference.
As a kind of preferred embodiment, surface-mounted integrated circuit includes signal amplification module, filtration module, GPRS signals and occurred
Module, wireless transport module, the input of signal amplification module are connected with the output end of hidden danger sensor 2, signal amplification mould
The output end of block is connected with the input of filtration module, the output end of filtration module and the input of GPRS signal generating modules
It is connected, the output end of GPRS signal generating modules is connected with the input of wireless transport module, and wireless transport module is used for
Carry out data transmission.
The beneficial effect that the present invention is reached：The advantage of the invention is that using iron core power taking technology, can be fully effective
The whole travelling wave current detection means of supply power supply requirement, avoid and external power supply be provided or carries out power-source maintenance and maintenance
Trouble；Effectively completely cut off the leakage field that power taking iron core brings during power taking by sensor external technologies to disturb, so that
Original travelling wave current waveform is override, improves the accuracy and reliability of travelling wave current detection means.
Brief description of the drawings
Fig. 1 is a kind of based on the hidden danger traveling wave detector apparatus structure signal that suppression interference is set effective outside sensor of the present invention
Figure.
Fig. 2 is a kind of based on the workflow that the hidden danger traveling wave detector device for suppressing interference is set effective outside sensor of the present invention
Journey schematic diagram.
The implication marked in figure：1- package casings, 2- hidden danger sensors, 3- sensor outer housings, 4- power taking iron cores, 5- seams
Gap, 6- transmission lines of electricity duct, 7- signal cables, 8- surface-mounted integrated circuits.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating the present invention
Technical scheme, and can not be limited the scope of the invention with this.
Traditional transmission line malfunction hidden danger traveling wave monitoring device, monitoring is installed eventually by distributed on transmission line of electricity
End, small travelling wave current caused by the electric discharge of all kinds of defect hidden danger is monitored in real time, based on traveling wave positioning principle and hidden danger development not same order
The discharge current feature of section, realizes identification, positioning and the early warning to potential faults.
When in transmission line of electricity exist as composite insulator deterioration, wire gold utensil float electric discharge, vegetation electric discharge, insulator contamination,
During the potential safety hazards such as insulator rupture, there can be a certain size hidden danger discharge current in transmission line of electricity, due to different hidden danger
Discharge current has different discharge current waveforms, and is accompanied by different measurement ranges and frequency response bandwidth range, hidden danger electric discharge electricity
Flow sensor should be able to reach 1mA~10A measurement range, and 1kHz~10MHz frequency response bandwidth range, on this basis
With reference to Hidden Danger technology, location technology, system architecture reasonable in design, develop corresponding software program, with reference to data acquisition,
The hardware development technologies such as processing, transmission, power supply, can be achieved with the research and development of traditional transmission line malfunction hidden danger traveling wave monitoring device
And operation.
It is proposed by the present invention a kind of based on the hidden danger traveling wave detector device that suppression interference is set effective outside sensor, traditional
Improved in transmission line malfunction hidden danger traveling wave monitoring device, used main technical schemes are：By suitable for transmission of electricity
The hidden danger sensor 2 of faint travelling wave current signal extraction under circuit strong electromagnetic interference environment, and then to the small row on transmission line of electricity
Ripple electric current is monitored in real time, can be achieved to determine potential faults with reference to both-end traveling wave positioning principle and discharge current feature
Position and identification, and the surface-mounted integrated circuit 8 that will amplify for travelling wave current, filter and convert, and for being powered to whole device
The aluminum material metal-back of power taking iron core 4（That is package casing 1）It is encapsulated, external hidden danger sensor 2, because hidden danger senses
A certain distance be present in device 2 and the power taking iron core 4 for producing leakage field interference, and the package casing 1 of aluminum material can play it is good
Good buffer action, disturbed so can be good at masking leakage field caused by power taking iron core 4, ensure that hidden danger sensor 2
Effective collection to transmission line of electricity hidden danger traveling wave.
The present invention is further described below in conjunction with the accompanying drawings：
As shown in Figure 1, Fig. 1 is that a kind of structure based on the hidden danger traveling wave detector device that suppression interference is set effective outside sensor is shown
It is intended to.
Preferably, hidden danger sensor 2 is a semicircle high frequency Rogowski coil sensor, can be with according to the difference of applicable situation
Change sensor shape.
Preferably, the material of hidden danger sensor 2 is nanocrystalline that can also use the magnetic material of other high magnetic permeabilities.
Preferably, hidden danger sensor 2 is placed on outside detection means, and is placed on an independent plastic opaque sensor shell
In 3, hidden danger sensor 2 and surface-mounted integrated circuit 8 are connected by a cutting back signal cable 7, and all coupling parts have been carried out at waterproof
Reason.
Preferably, in order to prevent wire high-temperature from causing the coiling spontaneous combustion of hidden danger sensor 2, with fire proofing by hidden danger sensor
2 wrap up, and sheathing material is ABS fire proofings used by the sensor outer housing 3 in the present invention, can also can using other
Water proof and dust proof fire proofing for open air.
Preferably, hidden danger sensor 2 and surface-mounted integrated circuit 8 are connected by signal cable 7, and the length of signal cable 7 can root
It is adjusted according to scene, it is flexible for installation.
As shown in Figure 2, Fig. 2 is a kind of based on the work that the hidden danger traveling wave detector device for suppressing interference is set effective outside sensor
Make schematic flow sheet, specifically include following 5 steps.
Step S101：The diversity and complexity of transmission line of electricity running environment, substantial amounts of clutter, electricity be present in transmission line of electricity
Dizzy, hidden danger electric discharge（Floating electric discharge, trees electric discharge, floating object, contaminant flashover）, circuit resonance and other all kinds clutters, it is hidden
It is the small travelling wave signal of high frequency to suffer from electric discharge.
Step S102：High frequency Rogowski coil sensor is external in the present invention, pass through signal cable 7 and surface-mounted integrated circuit
8 are attached.
Step S103：The present invention is by suitable for faint travelling wave current signal extraction under transmission line of electricity strong electromagnetic interference environment
Hidden danger sensor 2, and then on transmission line of electricity small travelling wave current carry out high speed acquisition.
Step S104：The surface-mounted integrated circuit 8 that will amplify for travelling wave current, filter and convert, and for whole device
The power taking iron core 4 of power supply is encapsulated with aluminum material package casing 1, makes the high frequency Rogowski coil sensor of collection hidden danger traveling wave
A certain distance be present with the power taking iron core 4 for producing leakage field interference, and the package casing 1 of aluminum material can play it is good
Buffer action, avoid leakage field caused by power taking iron core 4 from disturbing, ensure that effective collection of transmission line of electricity hidden danger traveling wave.
Step S105：Signal after surface-mounted integrated circuit 8 is handled carries out data by wireless transport module and is sent to remotely
Data processing terminal.
The present invention is based on the external hidden danger traveling wave detector device of sensor, by hidden danger travelling wave current detection means, is adopted
Collect the hidden danger travelling wave current in transmission line of electricity, the self-powered of whole hidden danger traveling wave detector device is met by power taking iron core 4 to be needed
Ask, and use hidden danger sensor external technologies, so as to effectively gather the hidden danger current waveform in transmission line of electricity, improve
The reliability and high efficiency of transmission line safety stable operation.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and deformation can also be made, these are improved and deformation
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of based on the hidden danger traveling wave detector device that suppression interference is set effective outside sensor, on transmission line of electricity, it is special
Sign is, including for detecting the hidden danger sensor of circuit traveling wave（2）, for the integrated of travelling wave current amplification, filtering and conversion
Circuit board（8）, power taking iron core for being powered to whole device（4）, the hidden danger sensor（2）Output end pass through signal electricity
Cable（7）With the surface-mounted integrated circuit（8）Input be connected, the hidden danger traveling wave detector device passes through the middle transmission of electricity opened up
Circuit duct（6）On transmission line of electricity.
2. a kind of hidden danger traveling wave detector device for being set effective suppression interference outside based on sensor according to claim 1, its
It is characterised by, the surface-mounted integrated circuit（8）With the power taking iron core（4）Pass through package casing（1）Encapsulation, the surface-mounted integrated circuit
（8）With the power taking iron core（4）It is encapsulated in the package casing（1）Inside, the hidden danger sensor（2）It is arranged at the envelope
Casing（1）Outside.
3. a kind of hidden danger traveling wave detector device for being set effective suppression interference outside based on sensor according to claim 1, its
It is characterised by, the hidden danger sensor（2）For high frequency Rogowski coil sensor.
4. a kind of hidden danger traveling wave detector device for being set effective suppression interference outside based on sensor according to claim 1, its
It is characterised by, the hidden danger sensor（2）Be shaped as semicircle.
5. a kind of hidden danger traveling wave detector device for being set effective suppression interference outside based on sensor according to claim 1, its
It is characterised by, the hidden danger sensor（2）Material to be nanocrystalline.
6. a kind of hidden danger traveling wave detector device for being set effective suppression interference outside based on sensor according to claim 1, its
It is characterised by, the hidden danger sensor（2）Outside be provided with independent sensor outer housing（3）, the hidden danger sensor（2）Gu
Surely it is arranged on the sensor outer housing（3）In.
7. a kind of hidden danger traveling wave detector device for being set effective suppression interference outside based on sensor according to claim 6, its
It is characterised by, the sensor outer housing（3）Material be ABS fire proofings.
8. a kind of hidden danger traveling wave detector device for being set effective suppression interference outside based on sensor according to claim 1, its
It is characterised by, the power taking iron core（4）It is spliced by two semicylinders；The power taking iron core（4）Surface be wound with necessarily
The Rogowski coil of the number of turn.
9. a kind of hidden danger traveling wave detector device for being set effective suppression interference outside based on sensor according to claim 8, its
It is characterised by, the centre of the semicylinder is provided with gap（5）.
10. a kind of hidden danger traveling wave detector device for being set effective suppression interference outside based on sensor according to claim 1, its
It is characterised by, the surface-mounted integrated circuit（8）Including signal amplification module, filtration module, GPRS signal generating modules, it is wirelessly transferred
Module, the input of the signal amplification module and the hidden danger sensor（2）Output end be connected, the signal amplifies mould
The output end of block is connected with the input of the filtration module, and the output end of the filtration module occurs with the GPRS signals
The input of module is connected, and the output end of the GPRS signal generating modules is connected with the input of the wireless transport module
Connect, the wireless transport module is used for carrying out data transmission.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711143282.0A CN107817377A (en) | 2017-11-17 | 2017-11-17 | It is a kind of to be set effective the hidden danger traveling wave detector device for suppressing interference outside based on sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711143282.0A CN107817377A (en) | 2017-11-17 | 2017-11-17 | It is a kind of to be set effective the hidden danger traveling wave detector device for suppressing interference outside based on sensor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345883A (en) * | 2020-10-23 | 2021-02-09 | 刘振盛 | Transmission line hidden danger early warning system based on traveling wave current |
| CN112763860A (en) * | 2020-12-11 | 2021-05-07 | 贵州电网有限责任公司 | Power transmission line fault and abnormal discharge monitoring system and method |
| CN113325265A (en) * | 2021-05-12 | 2021-08-31 | 武汉三相电力科技有限公司 | Device for detecting mixed traveling wave in power transmission line |
| CN113917296A (en) * | 2021-09-30 | 2022-01-11 | 海南电网有限责任公司电力科学研究院 | Diagnosis method for circuit multi-point hidden danger discharge |
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