CN205958653U - High voltage transmission line's corona loss measuring equipment - Google Patents
High voltage transmission line's corona loss measuring equipment Download PDFInfo
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- CN205958653U CN205958653U CN201620799495.3U CN201620799495U CN205958653U CN 205958653 U CN205958653 U CN 205958653U CN 201620799495 U CN201620799495 U CN 201620799495U CN 205958653 U CN205958653 U CN 205958653U
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Abstract
The utility model relates to a high voltage transmission line corona loss measuring equipment, equipment includes: voltage measurement device on the high -voltage line, the high -pressure voltage signal real time transport who obtains measurement data acquisition device to the high -voltage line on, resistance transducer measures and transmits data acquisition device to the high -voltage line on the corona current signal, data acquisition device on the high -voltage line adopts two channel synchronization acquisition mode right the high pressure voltage signal with the corona current signal carries out synchronous sampling to utilize the optical fiber transmission circuit to convey photoelectric conversion device under the high -voltage line after converting two light signals respectively into, photoelectric conversion device under the high -voltage line will two light signals convert two signals of telecommunication respectively into through photoelectric conversion to the transmission is handled for the host computer, corona loss is received and calculated to the host computer to two signals of telecommunication that photoelectric conversion device transmission under the high -voltage line comes, and power supply unit, adopt the storage battery power supply, guarantee equipment can normally be worked.
Description
Technical field
This utility model is related to measurement and calibration field, and more particularly, to a kind of electricity of HVAC power transmission line
Dizzy loss measurement equipment.
Background technology
For implement national energy policy it is ensured that power industry comprehensively, coordinate, continuable sound development, national grid is public
Department proposes the Major Strategic behave accelerating development alternating current-direct current extra-high voltage grid according to China's national situation.UHV transmission is in superelevation
Grow up on the basis of pressure transmission of electricity, it is possible to achieve remote, high capacity transmission electric energy, suitable interconnection power system.
It is impossible to simple say which kind of power transmission mode is good or which kind of power transmission mode on UHV transmission way choice
Difference, only specifically chosen as the case may be, the advantage of competence exertion UHV transmission.In ultra-high voltage AC transmission electric pressure
In selection, set out according to actual needs, through a series of experimental demonstration, select 1000kV electric pressure to be both economical reasonable
's；After electric pressure is selected, during transmission line of electricity conveying high-pressure electricity, need to consider that the transmission under this electric pressure is damaged
The corona loss when heating loss producing when consumption, such as wire are by electric current and generation corona current.Only first had
The loss of body, just can calculate the efficiency of ultra-high voltage AC transmission, simultaneously special according to the production of loss, generation
Point, improves to ultra-high voltage AC transmission mode.Therefore, the loss of research ultrahigh voltage alternating current transmission lines is to weigh very much
Want.In the case that weather condition is good, ultrahigh voltage alternating current transmission lines is not likely to produce corona current, at this moment UHV transmission
The prevailing transmission loss of circuit is exactly the resistance heating loss on electric wire, and under some specific conditions, such as High aititude, remote
Area, circuit passes through local climate very severe, and the ratio that rain, snow, frost, greasy weather gas account for whole year is very big, and corona loss may become
Main aspect for electric energy loss.Therefore, transmission line of electricity corona loss research is China 1000kV extra-high voltage electric transmission and transformation engineering
One of key technology.
External aspect, after the 1950's, the U.S. and Russia, plus, meaning, method and day in succession build test line segment, carry out electricity
The measurement Research of dizzy loss, but limit because various countries' transmission voltage grade exists, and most countries are only in research supertension
The country such as corona loss of transmission line of electricity, the only U.S. and Italy can carry out the related experiment of extra high voltage line.
Domestic aspect, the eighties in 20th century, China Electric Power Research Institute, Xian High voltage Apparatus Research Institute, state's net
The units such as Electric Power Research Institute carried out research to different electric pressure transmission line of electricity corona loss, but due to experiment condition
Relative shortcoming, research contents lacks multiformity, the research to the AC extra high voltage transmission line corona loss under complicated weather
Compare less.Until nineteen ninety-five, Wuhan High Voltage Research Institute Of State Grid builds up open field test field extra-high voltage experiment line segment, will exchange defeated
Piezoelectric voltage grade rises to 1000kV, and each research unit of China is just carried out extra-high voltage 1000kV level ac transmission plant engineering
Research work, for accelerating planning and the construction process of national mains network, it then follows draw international advanced technology and experience, fully
Consider technology maturation and lay a good foundation with the technical policy that production domesticization is done step-by-step.North China Electric Power University Liu Yun roc et al. in order to
Research corona loss characteristic under sleet meteorological condition for the ultrahigh voltage alternating current transmission lines, develops photoelectricity numeralization transmission line of electricity
Corona loss monitoring device, returns in China's UHV AC Test Base list and is tested on test line segment, this monitoring device
Major advance is it is achieved that on-line measurement under test line segment corona loss all weather conditions, can be according to analysis on monitoring result
Corona loss under different rates of rainall and heavy snow meteorological condition, but this equipment many places adopts A/D and D/A device so that equipment
Real-time not high, measurement error is larger.China Power academy of science and BJ University of Aeronautics ＆ Astronautics's cooperation research and development go out HVDC
Transmission line of electricity corona loss measuring apparatus, the measurement result of this measuring apparatus is accurate, have anti-electrical breakdown performance by force, Neng Gou
Run steadily in the long term under the conditions of ultra-high/extra-high voltage DC environment and various extreme natural environment, and using split-type structural it is easy to show
Field I＆M, but this measuring apparatus is not suitable for the measurement of HVAC power transmission line corona loss.
Comprehensive analysis domestic and international extra-high-voltage alternating current corona current Research on measuring technique present situation, surveys in conjunction with extra-high voltage corona current
The practical situation of amount equipment development, is primarily present some problems so at present：
1. existing corona current measuring apparatus structure not optimizes it is impossible to the outdoor vile weather of reply, meets extreme sky
Gas easily breaks down.
2., in existing AC corona current measure device, corona current and voltage synchronous acquisition scheme are not perfect, with
Step precision is not high.
Content of the invention
In order to solve the above problems, according to one side of the present utility model, provide a kind of HVAC power transmission line
Corona loss measuring apparatus, described equipment includes：
Voltage measuring apparatus on device high-voltage line, the HV voltage signal that measurement is obtained utilizes optical fiber transmission line real-time
Transmit to data acquisition unit on high-voltage line；
Electric resistance sensor, series connection access HVAC power transmission line in, corona current signal is measured and transmits to
Data acquisition unit on high-voltage line；
Data acquisition unit on high-voltage line, using dual pathways synchronous acquisition pattern to described HV voltage signal and described electricity
Corona current signal synchronizes collection, and is sent under high-voltage line using optical fiber transmission line after being respectively converted into two optical signals
Photoelectric conversion device；
Photoelectric conversion device under high-voltage line, described two optical signals are respectively converted into two telecommunications by opto-electronic conversion
Number, and be transferred to host computer and processed；
Host computer, two signals of telecommunication that photoelectric conversion device transmission under high-voltage line is come are received and are calculated corona and damaged
Consumption；And
Electric supply installation, adopts accumulator battery to power it is ensured that described equipment can be with normal work.
Preferably, on wherein said device high-voltage line, voltage measuring apparatus are located at the protection bucket of cylindrical metal material
Interior, and at the two ends of described protection bucket, grading ring is installed.
Preferably, on wherein said device high-voltage line, voltage measuring apparatus are arranged on the rear end of high tension generator.
Preferably, on wherein said device high-voltage line, voltage measuring apparatus include：Voltage transformer, Wave shape changing device and
Opto-electronic conversion transmitter group；The primary winding series connection of wherein said voltage transformer accesses high-voltage alternating circuit, and secondary coil connects
Enter Wave shape changing device and opto-electronic conversion transmitter, described voltage transformer is turned measuring the voltage signal of telecommunication obtaining by photoelectricity
Change transmitter to be converted to optical signal and transmit to data acquisition unit on high-voltage line.
Preferably, wherein said electric resistance sensor and data acquisition unit on high-voltage line are arranged on same position on high-voltage line
Put place, and described electric resistance sensor is installed in protection bucket with data acquisition unit on high-voltage line, to reduce high-voltage alternating
The impact to corona current signal for the complex electromagnetic environment that circuit produces.
Preferably, on wherein said high-voltage line, data acquisition unit includes：Capture card, optical-electrical converter and control circuit
Plate；Wherein said control board is the hinge that on high-voltage line, data acquisition unit equipment connects, to data acquisition on high-voltage line
The state of appliance arrangement is controlled, and described optical-electrical converter will be transferred to data acquisition on high-voltage line by optical fiber transmission line
The optical signal of device is converted to the signal of telecommunication and transmits to capture card.
Preferably, collect two signals of telecommunication are converted to two light by opto-electronic conversion by wherein said capture card respectively
After signal, photoelectric conversion device under high-voltage line is descended into by optical fiber transmission line.
Preferably, on wherein said high-voltage line, data acquisition unit passes through under described optical fiber transmission line and described high-voltage line
Photoelectric conversion device is connected.
Brief description
By reference to the following drawings, illustrative embodiments of the present utility model can be more fully understood by：
Fig. 1 shows the structural representation of the corona loss measuring apparatus 100 according to this utility model embodiment；
Fig. 2 shows and is surveyed according to voltage on device high-voltage line in the corona loss measuring apparatus of this utility model embodiment
The flow chart of amount device；
Fig. 3 shows according to waveform voltage signal transmission in the corona loss measuring apparatus of this utility model embodiment
The structural representation of circuit diagram；
Fig. 4 shows and is installed on test wire according to protection bucket in the corona loss measuring apparatus of this utility model embodiment
The structural representation of section；
Fig. 5 shows and is placed on high-voltage line according to protection bucket in the corona loss measuring apparatus of this utility model embodiment
Data acquisition unit and electric resistance sensor schematic diagram；
Fig. 6 shows the knot according to the harvester adopting in the corona loss measuring apparatus of this utility model embodiment
Structure schematic diagram；
Fig. 7 shows and is illustrated according to control board logic in the corona loss measuring apparatus of this utility model embodiment
Figure；
Fig. 8 shows the company according to side apparatus under the corona loss measuring apparatus mesohigh line of this utility model embodiment
Connect schematic diagram；
Fig. 9 shows the exchange 1000kV of the Bazhou extra-high voltage poles and towers proving ground according to this utility model embodiment
High pressure common-tower double-return line pole tower schematic diagram.
Wherein, 1,7 is test line segment, and 2,6 is pipe bus, and 3,5,8,13,14,15 is grading ring, and 4 is protection bucket, 9,16
It is outdoor optical fiber, 10,12 is load-bearing insulator, and 11 is optical fiber insulator, 17,18 is optic fibre switching box, 41 is pipe bus, 42,
48 is metal flange, and 43,45 is insulating flange, and 44 is PE pipe, and 46 is grading ring, and 47 is optical fiber interface, and 49 is pipe bus opening,
410 is pipe bus opening top cover, and A1 is high tension generator, and A2 is pipe bus, and A3 is high-pressure tower bar, and A4 is aerial condutor, and A5 is
Load-bearing insulator.
Specific embodiment
With reference now to accompanying drawing, introduce illustrative embodiments of the present utility model, however, this utility model can be with many
Different forms is implementing, and is not limited to embodiment described herein, provides these embodiments to be in order at large and complete
Open this utility model entirely, and fully pass on scope of the present utility model to person of ordinary skill in the field.For
Term in the illustrative embodiments being illustrated in the accompanying drawings is not to restriction of the present utility model.In the accompanying drawings, identical
Cells/elements use identical reference.
Unless otherwise stated, term (inclusion scientific and technical terminology) used herein has to person of ordinary skill in the field
Common understand implication.Further it will be understood that the term being limited with the dictionary that is usually used is it should be understood to and it
The linguistic context of association area has consistent implication, and is not construed as Utopian or excessively formal meaning.
Fig. 1 shows the structural representation of the corona loss measuring apparatus 100 according to this utility model embodiment.As figure
Shown in 1, corona loss measuring apparatus 100 include：Voltage measuring apparatus 101, electric resistance sensor 102, high pressure on device high-voltage line
Photoelectric conversion device 104, host computer 105 and electric supply installation 106 under data acquisition unit 103 on line, high-voltage line.Device high-voltage line
Upper voltage measuring apparatus 101 utilize optical fiber transmission line real-time Transmission number to high-voltage line by measuring the HV voltage signal obtaining
According to harvester 103.Preferably, on wherein said device high-voltage line, voltage measuring apparatus 101 are located at cylindrical metal material
Protection bucket in, and described protection bucket two ends install grading ring.Preferably, on wherein said device high-voltage line, voltage is surveyed
Amount device 101 is arranged on the rear end of high tension generator.Preferably, on wherein said device high-voltage line, voltage measuring apparatus 101 wrap
Include：Voltage transformer, Wave shape changing device and opto-electronic conversion transmitter group；The primary winding string of wherein said voltage transformer
Couple into high-voltage alternating circuit, secondary coil accesses Wave shape changing device and opto-electronic conversion transmitter, described voltage transformer will
Measure the high tension voltage signal of telecommunication that obtains optical signal transmitting is converted to by opto-electronic conversion transmitter and adopt to data on high-voltage line
Acquisition means 103.
Fig. 2 shows and is surveyed according to voltage on device high-voltage line in the corona loss measuring apparatus of this utility model embodiment
The flow chart of amount device.As shown in Fig. 2 voltage measuring apparatus 101 are the power frequencies producing high tension generator on device high-voltage line
Simple alternating current HV voltage signal is converted to low voltage voltage signal, and is directly converted to simulation low voltage signal logical after optical signal
Cross optical cable transmission circuit real-time Transmission to data acquisition unit on high-voltage line 103.
Fig. 3 shows according to waveform voltage signal transmission in the corona loss measuring apparatus of this utility model embodiment
The structural representation of circuit diagram.As shown in figure 3, voltage measuring apparatus 101 are adopted to data on high-voltage line on described device high-voltage line
The HV voltage signal waveform transfer circuit of acquisition means 103 is connect by HFBR1414 photoelectron emission device, optical cable, HFBR2416 photoelectricity
Receive device and modulate circuit composition.Concrete principle is：Will be defeated using the constant-current source circuit described fiber optic emitter HFBR1414 of driving
Enter sine voltage signal and be converted to optical signal, transmitted to described HFBR2416 photelectric receiver by optical fiber cable, described
HFBR2416 photelectric receiver exports from 2 pins, because long range propagation signal can exist after converting optical signals to the signal of telecommunication
The distortions such as decay, biasing, nurse one's health to the signal of 2 pin outputs.
Preferably, electric resistance sensor 102 series connection accesses in HVAC power transmission line, and corona current signal is measured
And transmit to data acquisition unit on high-voltage line 103.Preferably, wherein said electric resistance sensor 102 and data on high-voltage line are adopted
Acquisition means 103 are arranged at same position on high-voltage line, and described electric resistance sensor and data acquisition unit on high-voltage line
It is installed in protection bucket, to reduce the impact to corona current signal for the complex electromagnetic environment of high-voltage alternating circuit generation.Fig. 4
Show that the structure being installed on test line segment according to protection bucket in the corona loss measuring apparatus of this utility model embodiment is shown
It is intended to.As shown in figure 4, described protection bucket 4 is suspended between two sections of pipe buses 2 and 6, it is attached by grading ring 3 and 5.
Load-bearing insulator 10 and 12 has hung pipe bus 2,6 and test line segment 1,7, and optical fiber passes through inside optical fiber insulator 11, and leads to
Cross two ends interconnecting device 17,18 to be connected with outdoor optical fiber 16,9, another termination of outdoor optical fiber 9 protects the outdoor optical fiber interface of bucket 4
47, voltage measuring apparatus 101 on photoelectric conversion device 104 and device high-voltage line under another termination high-voltage line of outdoor optical fiber 16.
After on high-voltage line in described protection bucket, data acquisition unit 103 collects signal, transmitted exhausted to optical fiber by outdoor optical fiber 9
Edge 11, is transmitted to outdoor optical fiber 16 by optical fiber insulator 11, outdoor optical fiber 16 is two long distance outdoor optical cables, one section with
Carry out data acquisition unit 103 on voltage measuring apparatus 101 and high-voltage line on attachment means high-voltage line, by voltage on device high-voltage line
The voltage waveform real-time Transmission that measurement apparatus 101 measurement obtains is to data acquisition unit on high-voltage line 103, another section of connection high pressure
Photoelectric conversion device 104 under line, the signal transmission that data acquisition unit on high-voltage line 103 is collected is to host computer 105.
Fig. 5 shows and is placed on high-voltage line according to protection bucket in the corona loss measuring apparatus of this utility model embodiment
Data acquisition unit and electric resistance sensor schematic diagram.As shown in figure 5, data acquisition unit 103 is female by pipe on described high-voltage line
Line opening 49 is arranged in pipe bus 41, and fixes 410 pipe bus opening top covers by 4 hexagonal socket nuts, female by pipe
Line carries out electromagnetic shielding to data acquisition unit on high-voltage line, ensures that the signal collecting is not subject to outside strong electromagnetic shadow
Ring, and ensure the safe and reliable of under IFR conditions equipment.Described electric resistance sensor 102 is positioned in PE pipe 44, high
On line ball, data acquisition unit 103 connects the two ends of electric resistance sensor 102 respectively by Shielded Twisted Pair, when there being electric current in resistance
When, on high-voltage line, data acquisition unit 103 can collect the voltage data at electric resistance sensor 102 two ends.
Preferably, on high-voltage line, data acquisition unit 103 is believed to described high tension voltage using dual pathways synchronous acquisition pattern
Number and described corona current signal synchronize collection, and be respectively converted into after two optical signals using optical fiber transmission line transmission
The photoelectric conversion device 104 to high-voltage line.Preferably, on wherein said high-voltage line, data acquisition unit 103 includes：Capture card,
Optical-electrical converter and control board；Wherein said control board is that on high-voltage line, data acquisition unit 103 equipment connects
Hinge, is controlled to the state of data acquisition unit on high-voltage line 103 equipment, described optical-electrical converter will be by fiber-optic transfer
Line transmission is converted to the signal of telecommunication and transmits to capture card to the optical signal of data acquisition unit on high-voltage line 103.
Fig. 6 shows synchronous according to the harvester adopting in the corona loss measuring apparatus of this utility model embodiment
The structural representation of acquisition method.As shown in fig. 6, harvester synchronous acquisition method is by high tension voltage waveshape signal and corona electricity
Stream signal transmission, to the same space orientation, recycles the multichannel synchronousing collection technology of harvester to carry out signal synchronous collection.
Preferably, collect two signals of telecommunication are converted to after two optical signals by opto-electronic conversion by wherein said capture card respectively,
Photoelectric conversion device 104 under high-voltage line are descended into by optical fiber transmission line.Preferably, data acquisition on wherein said high-voltage line
Device 103 is connected with photoelectric conversion device 104 under described high-voltage line by described optical fiber transmission line.
Fig. 7 shows and is illustrated according to control board logic in the corona loss measuring apparatus of this utility model embodiment
Figure.As shown in fig. 7, described control board is as the control core part of data acquisition unit on high-voltage line 103, it is high-voltage line
The hinge that upper data acquisition unit 103 equipment connects, by control board, it is possible to achieve to data acquisition unit on high-voltage line
The control of 103 equipment states.
Described control board mainly completes six work：1) equipment is powered：Data acquisition unit 103 on high-voltage line
In, the running voltage of various equipment is different from, and wherein, capture card running voltage is+6V, USB optic fiber converter work electricity
Press as+5V, the running voltage of voltage waveform reception device is+5V, -5V, carries out voltage conversion using power supply chip, and equipment supplies
Electricity is powered using 12V battery, and one piece of 5V power supply chip LM2576-5 runs to provide 5V power supply always, LM2678ADJ and
LM2678-5 carries out break-make to control the power supply of capture card and USB optic fiber converter respectively, from LM2660 chip provide-
5V power supply, simultaneously by PCB is carried out with design of Electromagnetic Shielding to a certain extent, and the electromagnetic protection of periphery is arranged
Apply, reduce the impact that equipment is powered of forceful electric power magnetic environment it is ensured that the stable operation of equipment；2) voltage waveform receives conditioning：?
Fiber optic receiver and interlock circuit are integrated with control board, voltage measuring apparatus 101 on device high-voltage line can be transmitted
The voltage waveform optical signal coming is converted into the signal of telecommunication, after adjustment waveform, transmits and is acquired to capture card；3) fiber switch：?
The receptor of optical fiber telemetry switch is integrated with panel simultaneously, the emitter of fiber switch is located at opto-electronic conversion dress under high-voltage line
In putting, by PC control light wiretap discharger, can be with the power supply of remote control equipment, thus controlling whole collection to set
Standby working condition；4) signal measurement switching：One fiber switch measurement switching device is designed with control board, this be by
Only have 2 tunnel signal inputs in the capture card that this uses, and whole equipment needs the amount of measurement to have three：Corona current, voltage
Waveform and cell voltage, therefore, complete the handover measurement of signal by a magnetic latching relay；5) equipment overvoltage protection：By
In working environment electric pressure at million volts about, instantaneous pressure pulse is easily destroyed sensing element and collection card channel, is anti-
Class situation occurs here, can add protection circuit, P6KE15CA Transient Suppression Diode TVS and 2R-75V in parallel at resistance two ends
Ceramic discharge diode；6) equipment short-circuit protection：For measuring apparatus harvester, its suffered affected by high is not only
It is limited to high-tension line itself it is also possible to come from the attack of the thunder and lightning under thunder and lightning weather environment, therefore, in thunder and lightning weather environment pair
The all probes of capture card all carry out short-circuit protection.Concrete measure is to connect collection respectively using the COM end of relay and RESET end
Card probe+level and-level, when using capture card, disconnected by fiber switch control relay COM end and SET end, capture card
Normally measured work；When not measuring, fiber switch control relay closure will be short-circuit for capture card probe, this
Sample, adds TVS pipe and gas-discharge tube, can reach the purpose of protection capture card.
Preferably, under high-voltage line, described two optical signals are respectively converted into by photoelectric conversion device 104 by opto-electronic conversion
Two signals of telecommunication, and be transferred to host computer 105 and processed.Fig. 8 shows that the corona according to this utility model embodiment damages
The connection diagram of side apparatus under consumption measuring apparatus mesohigh line.As shown in figure 8, photoelectric conversion device 104 under described high-voltage line
It is connected with a high-performance computer by USB interface and serial line interface, both are placed in distance test (DT) line segment and have one section
The control of distance is indoor, and by realization, the capture program writing and man machine interface operate this high-performance calculation to controllers
Machine sends the control command of electrical signal form, and under high-voltage line, photoelectric conversion device 104 converts electrical signals to optical signal, then passes through
Outdoor fiber-optic transfer, on the upside of measuring apparatus high-voltage line, reaches the purpose controlling high-voltage line topside equipment.
Preferably, two signals of telecommunication that host computer 105 comes to photoelectric conversion device under high-voltage line 104 transmission carry out receiving simultaneously
Calculate corona loss.Preferably, electric supply installation 106 adopts accumulator battery to power it is ensured that described equipment can be with normal work.
Fig. 9 shows that the exchange 1000kV of the Bazhou extra-high voltage poles and towers proving ground according to this utility model embodiment is high
Pressure common-tower double-return line pole tower schematic diagram.As shown in figure 9, the application platform of HVAC power transmission line corona loss measuring apparatus is
1000 kilovolts of extra-high voltage same tower double circuit line pole towers of the exchange of Bazhou extra-high voltage poles and towers proving ground.Voltage measurement on device high-voltage line
Device is arranged on after high tension generator A1, and data acquisition unit and electric resistance sensor unification on high-voltage line is arranged on protection bucket
Interior, and hang and be installed on below load-bearing insulator A5, data acquisition on high-voltage line is filled by optical fiber insulator with outdoor optical fiber
Put and couple together with voltage measuring apparatus on photoelectricity converter device under high-voltage line and device high-voltage line, and by light Denso under high-voltage line
Changing device and host computer couple together.
When carrying out ultrahigh voltage alternating current transmission lines corona loss measurement related experiment, first voltage is added to conducting line segment,
Controllers control high tension generator progressively to produce ac high voltage on request in booster chamber, are transmitted by pipe bus and lead to built on stilts
On line, aerial condutor one end adds extra-high voltage, and other end is hanging.During high tension generator is to wire boosting, lead
Line and the high tension generator as power supply cannot form circuit loop, lead to there is voltage on aerial condutor, but do not have electricity
Stream.When electric pressure rises to 1000kV always from 100kV, air is breakdown, and conducting line segment carries out corona discharge to air, this
Sample, will form current path, produce corona loss.
This utility model is described by reference to a small amount of embodiment.However, known in those skilled in the art,
As subsidiary Patent right requirement is limited, except this utility model others disclosed above embodiments equally fall
In the range of this utility model.
Normally, all terms using in the claims are all solved in the usual implication of technical field according to them
Release, unless in addition clearly defined wherein.All of reference "/described/be somebody's turn to do [device, assembly etc.] " is all opened ground
It is construed at least one of described device, assembly etc. example, unless otherwise expressly specified.Any method disclosed herein
Step all need not be run with disclosed accurate order, unless explicitly stated otherwise.
Claims (8)
1. one kind includes for HVAC power transmission line is carried out with corona loss measuring apparatus, described equipment：
Voltage measuring apparatus on device high-voltage line, the HV voltage signal that measurement is obtained utilizes optical fiber transmission line real-time Transmission
The data acquisition unit to high-voltage line；
Electric resistance sensor, series connection accesses in HVAC power transmission line, corona current signal is measured and transmits to high pressure
Data acquisition unit on line；
Data acquisition unit on high-voltage line, using dual pathways synchronous acquisition pattern to described HV voltage signal and described corona electricity
Stream signal synchronizes collection, and is sent to photoelectricity under high-voltage line using optical fiber transmission line after being respectively converted into two optical signals
Conversion equipment；
Photoelectric conversion device under high-voltage line, described two optical signals are respectively converted into two signals of telecommunication by opto-electronic conversion, and
It is transferred to host computer to be processed；
Host computer, two signals of telecommunication that photoelectric conversion device transmission under high-voltage line is come are received and are calculated corona loss；With
And
Electric supply installation, adopts accumulator battery to power it is ensured that described equipment can be with normal work.
2. equipment according to claim 1, on wherein said device high-voltage line, voltage measuring apparatus are located at cylindrical gold
Belong in the protection bucket of material, and at the two ends of described protection bucket, grading ring is installed.
3. equipment according to claim 1, on wherein said device high-voltage line, voltage measuring apparatus are arranged on high pressure and occur
The rear end of device.
4. equipment according to claim 1, on wherein said device high-voltage line, voltage measuring apparatus include：Mutual induction of voltage
Device, Wave shape changing device and opto-electronic conversion transmitter group；The primary winding series connection of wherein said voltage transformer accesses high pressure and hands over
Flow Line, secondary coil accesses Wave shape changing device and opto-electronic conversion transmitter, and described voltage transformer will measure the height obtaining
Piezoelectricity piezoelectric signal is converted to optical signal by opto-electronic conversion transmitter and transmits to data acquisition unit on high-voltage line.
5. equipment according to claim 1, wherein said electric resistance sensor is arranged on data acquisition unit on high-voltage line
At same position on high-voltage line, and described electric resistance sensor is installed in protection bucket with data acquisition unit on high-voltage line
Interior, to reduce the impact to corona current signal for the complex electromagnetic environment of high-voltage alternating circuit generation.
6. equipment according to claim 1, on wherein said high-voltage line, data acquisition unit includes：Capture card, photoelectricity turns
Parallel operation and control board；Wherein said control board is the hinge that on high-voltage line, data acquisition unit equipment connects, to height
On line ball, the state of data acquisition unit equipment is controlled, and described optical-electrical converter will be transferred to height by optical fiber transmission line
On line ball, two optical signals of data acquisition unit are converted to two signals of telecommunication and transmit to capture card.
7. equipment according to claim 6, collect two signals of telecommunication are passed through photoelectricity by wherein said capture card respectively
After being converted to two optical signals, photoelectric conversion device under high-voltage line is descended into by optical fiber transmission line.
8. equipment according to claim 1, on wherein said high-voltage line, data acquisition unit passes through described optical fiber transmission line
Road is connected with photoelectric conversion device under described high-voltage line.
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| CN201620799495.3U CN205958653U (en) | 2016-07-26 | 2016-07-26 | High voltage transmission line's corona loss measuring equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226603A (en) * | 2016-07-26 | 2016-12-14 | 中国电力科学研究院 | The corona loss of a kind of HVAC power transmission line measures system and method |
| US11656420B2 (en) | 2021-01-22 | 2023-05-23 | Macleon, LLC | System and method of distributing ultra high power using optical fiber cable |
-
2016
- 2016-07-26 CN CN201620799495.3U patent/CN205958653U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226603A (en) * | 2016-07-26 | 2016-12-14 | 中国电力科学研究院 | The corona loss of a kind of HVAC power transmission line measures system and method |
| US11656420B2 (en) | 2021-01-22 | 2023-05-23 | Macleon, LLC | System and method of distributing ultra high power using optical fiber cable |
| US11774695B2 (en) | 2021-01-22 | 2023-10-03 | Macleon, LLC | Optical fiber cable |
| US12117663B2 (en) | 2021-01-22 | 2024-10-15 | Macleon, LLC | System and method of refining optical fiber |
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