CN208520945U - A kind of mixed line fault deciding field device - Google Patents
A kind of mixed line fault deciding field device Download PDFInfo
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- CN208520945U CN208520945U CN201820328221.5U CN201820328221U CN208520945U CN 208520945 U CN208520945 U CN 208520945U CN 201820328221 U CN201820328221 U CN 201820328221U CN 208520945 U CN208520945 U CN 208520945U
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Abstract
The utility model discloses a kind of mixed line fault deciding field devices, including main control module, background server and multiple acquisition modules, and when route breaks down, each acquisition module three-phase synchronous acquires high speed recording, and is uploaded to the main control module；The recording waveform received is uploaded to the background server by the main control module；The background server carries out fault section positioning according to the recording waveform received, judges that line fault occurs in power transmission cable side or overhead line trackside.The utility model quickly positions line fault section, analyzed and is prevented, judge that failure occurs in power transmission cable side or overhead line trackside, when cable overhead line mixed power transmission line breaks down, fault location can accurately be carried out, on the one hand it can reduce line walking burden, on the other hand it can accelerate route again to restore electricity, reduce because of economic loss caused by having a power failure.
Description
Technical field
The utility model relates to Relay Protection Technology in Power System fields, and in particular to a kind of mixed line fault section is fixed
Position device.
Background technique
With the rapid development of electric system, transmission line of electricity develops on the basis of original cable, overhead transmission line
Cable overhead line mixed power transmission line, and application is more and more extensive.Extra-high-tension cable overhead line mixed power transmission line can be across greatly
Water channel, straits, can be directly to big city and industrial area center feed.Meanwhile being limited by city space and planning, cable is aerial
Line mixed power transmission line is in city using more and more extensive.It is not straight that cable overhead line mixed power transmission line is also applied to neutral point
In the low current transmission system of ground connection, such as railway signal power supply power supply system.
But due to the flaw in the manufacture of cable overhead line mixed power transmission line or through use after a period of time, cable it is exhausted
Edge level can decline, to can cause cable that ground fault occurs, equally, similar failure can also occur for overhead line.
Utility model content
Technical problem to be solved in the utility model is cable overhead line mixed power transmission line due to the flaw in manufacture
Or through use after a period of time, cable insulation level is caused to decline, so as to cause cable, overhead line ground fault occurs.
In order to solve the above-mentioned technical problem, technical solution used by the utility model is to provide a kind of mixed line fault
Deciding field device, including main control module, background server and multiple acquisition modules, it is each described when route breaks down
Acquisition module three-phase synchronous acquires high speed recording, and is uploaded to the main control module；The recording that the main control module will receive
Waveform is uploaded to the background server；The background server carries out fault section positioning according to the recording waveform received,
Judge that line fault occurs in power transmission cable side or overhead line trackside.
Preferably, the traveling wave generated when the background server occurs according to failure reach the time of the acquisition module with
And the spread speed of traveling wave in the line carries out abort situation positioning.
Preferably, each acquisition module is mounted on distribution line and insulating sheath ground line, each acquisition module
Adaptable line load current size, and three-phase synchronous acquisition cable run load current and transmission of electricity electricity when line fault occurs
Earth current, Fault feature of single phase earthing data and the profile information of cable insulating sheath, are combined by wide frequency domain current sensor
FPGA high speed acquisition captures fault traveling wave and partial discharge in time.
Preferably, the acquisition information of the acquisition module passes through 101 agreements with the remote signalling information upload background service
Device, and do SOE record.
Preferably, the acquisition module and background server support internal communication protocol, and the background server can be long-range
Check and modify the relevant parameter and remote upgrade program of the acquisition module.
Preferably, the acquisition module using 5A low current automatic electricity getting and is aided with super capacitor as master control power supply, simultaneously
Integrated energy collection system is extracted nanoscale energy from daylight, thermoelectricity, electromagnetism and the various sources of vibrational energy and is carried out to it
Management is using as backup power source.
Preferably, the main control module is communicated with distribution main website, supports solar panels or the power supply of TA way to take power, and
It is aided with rechargeable battery as backup power supply.
Preferably, the background server supports wireless communication, by mobile client or debugging software to the backstage
Server carries out parameter reading and writing, telemetry reading and remote control.
Preferably, the background server sends alarm message to specified mobile client automatically.
Preferably, user sends ad hoc inquiry short message to the background server by mobile client, monitors model in real time
Enclose whether interior route breaks down.
The utility model proposes a kind of mixed line fault deciding field devices, quickly determine line fault section
Position, analysis and prevention judge that failure occurs in power transmission cable side or overhead line trackside, when cable overhead line mixed power transmission line
When breaking down, fault location can be accurately carried out, line walking burden is on the one hand can reduce, on the other hand can accelerate route again
It restores electricity, reduces because of economic loss caused by having a power failure.
Detailed description of the invention
Fig. 1 is a kind of block diagram of mixed line fault deciding field device in the utility model；
Fig. 2 is a kind of topological diagram of mixed line fault deciding field device in the utility model.
Specific embodiment
In order to solve existing cable overhead line mixed power transmission line due to the flaw in manufacture or through after a period of time
Use, cause cable insulation level decline, so as to cause cable, overhead line occur ground fault the problem of.The utility model
A kind of mixed line fault deciding field device is proposed, is mounted at the high-pressure tower pole that power transmission cable and overhead transmission line combine,
It is supervised in real time for the ground state to cable overhead line mixed power transmission line state and high voltage power cable insulating sheath
It surveys, and uploads monitoring information and fault-detection data to remote server, line fault section is quickly positioned, is analyzed
With prevention, judge that failure occurs in power transmission cable side or overhead line trackside.When event occurs for cable overhead line mixed power transmission line
When barrier, fault location can be accurately carried out, on the one hand can reduce line walking burden, on the other hand can accelerate route again and restore to supply
Electricity is reduced because of economic loss caused by having a power failure.
The utility model is described in detail with specific embodiment with reference to the accompanying drawings of the specification.
The utility model embodiment provides a kind of mixed line fault deciding field device, as depicted in figs. 1 and 2, tool
Body includes main control module 20, background server 30 and multiple acquisition modules 10, when route breaks down, each acquisition module 10
Three-phase synchronous acquires high speed recording, and is uploaded to main control module 20；After the recording waveform received is uploaded to by main control module 20
Platform server 30；Background server 30 carries out fault section positioning according to the recording waveform received, is mainly calculated using experts database
The methods of method, current curve, traveling wave location algorithm and partial discharge location algorithm judge that line fault occurs in power transmission cable
Side or overhead line trackside.
Meanwhile the traveling wave that generates when being occurred according to failure of background server 30 reach the acquisition module 10 time and
The spread speed of traveling wave in the line carries out abort situation positioning.
Each acquisition module 10 is mounted on distribution line and insulating sheath ground line, the adaptive line of each acquisition module 10
Road load current size, and three-phase synchronous acquisition cable run load current and power transmission cable insulation shield when line fault occurs
Earth current, Fault feature of single phase earthing data and the profile information of set pass through wide frequency domain current sensor combination FPGA high speed
Acquisition captures fault traveling wave and partial discharge in time, and fault traveling wave is uploaded to main control module 20 using wirelessly or non-wirelessly communication mode.
Wherein, the short circuit of acquisition module 10, ground connection, high temperature and the cell voltage acquisition information such as low are passed through 101 agreements and are believed with remote signalling
Breath uploads background server 30, and does SOE record, supports failure wave-recording.Other than 101 agreements, acquisition module 10 and backstage are taken
Business device 30 also supports internal communication protocol, background server 30 remotely can check and modify acquisition module 10 relevant parameter and
Remote upgrade program, is convenient for remote maintenance.
Above-mentioned acquisition module 10 is using low current (5A) automatic electricity getting and is aided with super capacitor as master control power supply, integrates simultaneously
Energy collecting system, can be extracted from the various sources such as daylight, thermoelectricity, electromagnetism and vibrational energy nanoscale energy and to its into
Row management is using as backup power source.
Main control module 20 to the acquisition information labeling time parameter that the acquisition module 10 received uploads, and passes through GPRS
Communication is uploaded to background server 30.
Main control module 20 is communicated with distribution main website, supports solar panels or the power supply of TA way to take power, and be aided with and can fill
Battery is as backup power supply.
Background server 30 supports wireless communication, is joined by mobile client or debugging software to background server 30
Number read-write, telemetry is read and remote control.
The also included hardware clock module of the device, and being powered by independent battery, can also by telecommunication to terminal into
When row school.
When short circuit, ground connection, the failures such as high temperature occur for route, background server can send alarm message to specifying automatically
Mobile client.Also there is the function by message search route operating status, user can be by sending specific short message enquiry
To background server 30, monitor whether route in range occurs the failures such as short circuit, ground connection, high temperature and battery undervoltage in real time.
Mobile client is carried out telecommunication using GPRS communication mode with background server 30, and communication pattern is TCP association
The server/customer end mode of view, mobile client and background server 30 are mainly using DL/T634.5101-2002 communication rule
About, it supports equilibrium and non-equilibrium transmission mode, supports a variety of transmission reason length, public address length and link address long
Degree.
Mixed line fault deciding field device cable-type main power source takes electricity using open C T, and backup power supply uses super electricity
Hold (optional ferric phosphate lithium cell) and nanoscale energy collecting system, and overhead type uses solar energy electricity getting device, backup power supply
Using 1 section 12V7AH lead-acid accumulator.When main power source has electricity, power management module automatically controls backup power supply and does not supply to terminal
Electricity automatically carries out it charging and fills function with tiny stream if backup power supply voltage is low.If mixed line fault deciding field fills
It sets and has worked normally, when main power source power loss, it is fixed to mixed line fault section that power management module automatically controls backup power supply
Position device power supply.
Mixed line fault deciding field device provided by the utility model, rely on innovation low current power taking technology,
LORA is wireless, 4G communication, collection of energy, Rogowski coil sampling technique, wide frequency domain current transformer and FPGA high-speed sampling etc.,
When cable overhead line mixed power transmission line breaks down, start high speed recording, it is negative that each acquisition module 10 monitors route three-phase
The operation informations such as charged current, fault current, partial discharge and traveling wave and main power supply, backup power supply etc., by wirelessly or non-wirelessly etc.
For mode by recording waveform transfer to main control module 20, main control module 20 is communicated by GPRS uploads recording waveform to background server
30, background server 30 carries out fault section positioning to cable overhead line mixed power transmission line according to the recording waveform received,
To realize all kinds of failures precisely detect, subregion and positioning.
Wherein, synchronous acquisition is threephase cable line current and cable cover(ing) earth current, according to the same moment electric current
Variation, if the line current of certain two-phase becomes larger simultaneously, and earth current does not change, then confirms certain line to line fault and short dot is
Occur in overhead transmission line side.The utility model directly measures the traveling wave generated when failure occurs, reaches acquisition mould according to traveling wave
The time of block 10, the spread speed of traveling wave in the line, to calculate abort situation.
Meanwhile mixed line fault deciding field device is under cable overhead line mixed power transmission line normal operation,
Monitor load variations, send line current to background work personnel, provide line load reference information for staff, when
When ground fault, short trouble occur for cable overhead line mixed power transmission line, abort situation is shown, in time with guide maintenance personnel
Rapidly removing faults restore electricity.
The utility model has the advantage that
1, the low current (5A) innovated accesses power technology
Acquisition module built-in large capacity, long-life lithium Asia battery and super capacitor, pass through and apply new material and innovation
Power technology, can continuously take electricity within the scope of line current 0-600A, route 5A electric current can meet confession operation and deposit electricity
Minimum requirements, without battery, thus effectively extend life of product.
2, it precisely identifies route operating condition, supports current recording
By the precision current measurement of innovation and current detection technology over the ground, can line current 0-1000A range, it is electric
The measurement accuracy for flowing acquisition ± 1% within the scope of 0-100A, can accurately identify route operating condition.
3, real-time monitoring line status
Using short-distance wireless communication and GPRS mixed networking technology, various complicated line topologicals are supported；And actively timing
Report line status.With communications two-way confirmation and functions of retransmission, it is ensured that the reliability of data transmission, to control line at any time
Road real-time running state.
4, high frequency partial discharge information collection
By wide frequency domain CT combination FPGA high speed acquisition, the partial discharge information generated when acquiring failure.
5, traveling wave positions
By wide frequency domain CT combination bandpass filtering, while high speed and real time sampling, the traveling wave generated when capturing failure in time are believed
Breath, passes through background server experts database algorithm combination current information, fault point.
6, the high-precision clock synchronization of GPS, time service
Main control module GPS high-precision (1us) time service, obtains accurate absolute time mark.Main control module with every 30 points of acquisition module
Clock wireless synchronization once can guarantee three-phase synchronous precision (± 100us), realize three-phase current, over the ground electric field waveform acquisition.
7, non-maintaining design, can remote radio upgrade
Autonomous operation after hanging wire, complete non-maintaining design can update event by long distance wireless maintenance operation parameter when necessary
Hinder criterion or upgrading software program, promotes working efficiency.
The utility model is not limited to above-mentioned preferred forms, anyone knot made under the enlightenment of the utility model
Structure variation, it is all that there is with the utility model same or similar technical solution, each fall within the protection scope of the utility model it
It is interior.
Claims (9)
1. a kind of mixed line fault deciding field device characterized by comprising
Main control module, background server and multiple acquisition modules, when route breaks down, each acquisition module three is identical
Step acquisition high speed recording, and it is uploaded to the main control module；The recording waveform received is uploaded to described by the main control module
Background server；The background server carries out fault section positioning according to the recording waveform received, judges that line fault is sent out
Life is in power transmission cable side or overhead line trackside；
Each acquisition module is mounted on distribution line and insulating sheath ground line, and each acquisition module adaptable line is negative
Charged current size, and three-phase synchronous acquisition cable run load current and power transmission cable insulating sheath when line fault occurs
Earth current, Fault feature of single phase earthing data and profile information pass through wide frequency domain current sensor combination FPGA high speed acquisition
Capture fault traveling wave and partial discharge in time.
2. mixed line fault deciding field device as described in claim 1, which is characterized in that the background server according to
The traveling wave that failure generates when occurring reaches the spread speed of the time and traveling wave of the acquisition module in the line and carries out failure
Position positioning.
3. mixed line fault deciding field device as described in claim 1, which is characterized in that the acquisition of the acquisition module
Information passes through 101 agreements and uploads the background server with remote signalling information, and does SOE record.
4. mixed line fault deciding field device as claimed in claim 3, which is characterized in that the acquisition module and backstage
Server support internal communication protocol, the background server remotely can check and modify the relevant parameter of the acquisition module with
And remote upgrade program.
5. mixed line fault deciding field device as described in claim 1, which is characterized in that the acquisition module uses 5A
Low current automatic electricity getting is simultaneously aided with super capacitor as master control power supply, while integrated energy collection system, from daylight, thermoelectricity, electromagnetism
With extract nanoscale energy in the various sources of vibrational energy and it be managed using as backup power source.
6. mixed line fault deciding field device as described in claim 1, which is characterized in that the main control module and distribution
Main website is communicated, and supports solar panels or the power supply of TA way to take power, and be aided with rechargeable battery as backup power supply.
7. mixed line fault deciding field device as described in claim 1, which is characterized in that the background server is supported
Wireless communication, parameter reading and writing is carried out to the background server by mobile client or debugging software, telemetry read with
And remote control.
8. mixed line fault deciding field device as described in claim 1, which is characterized in that the background server is automatic
Alarm message is sent to specified mobile client.
9. mixed line fault deciding field device as described in claim 1, which is characterized in that user passes through mobile client
Ad hoc inquiry short message is sent to the background server, monitors whether route in range breaks down in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820328221.5U CN208520945U (en) | 2018-03-09 | 2018-03-09 | A kind of mixed line fault deciding field device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820328221.5U CN208520945U (en) | 2018-03-09 | 2018-03-09 | A kind of mixed line fault deciding field device |
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| CN208520945U true CN208520945U (en) | 2019-02-19 |
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| CN201820328221.5U Active CN208520945U (en) | 2018-03-09 | 2018-03-09 | A kind of mixed line fault deciding field device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441649A (en) * | 2019-06-27 | 2019-11-12 | 国网福建省电力有限公司福州供电公司 | One kind is aerial-cable hybrid line fault fast positioning dress and localization method |
| CN112147457A (en) * | 2019-06-26 | 2020-12-29 | 国网江苏省电力有限公司南京供电分公司 | A system and method for cable fault detection and location of underground integrated pipe gallery based on Hilbert-Huang transform |
-
2018
- 2018-03-09 CN CN201820328221.5U patent/CN208520945U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147457A (en) * | 2019-06-26 | 2020-12-29 | 国网江苏省电力有限公司南京供电分公司 | A system and method for cable fault detection and location of underground integrated pipe gallery based on Hilbert-Huang transform |
| CN112147457B (en) * | 2019-06-26 | 2024-06-11 | 国网江苏省电力有限公司南京供电分公司 | Underground comprehensive pipe rack cable fault detection and positioning system and method based on Hilbert-Huang transformation |
| CN110441649A (en) * | 2019-06-27 | 2019-11-12 | 国网福建省电力有限公司福州供电公司 | One kind is aerial-cable hybrid line fault fast positioning dress and localization method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 310000 6 storeys, 7 blocks, No. 1418-41, Moganshan Road, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Colin electric Limited by Share Ltd Address before: 310000 No. 1418-15, Moganshan Road, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Colin electric Limited by Share Ltd |
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| CP02 | Change in the address of a patent holder |