CN205941779U - Transmission line fault point positioning system - Google Patents
Transmission line fault point positioning system Download PDFInfo
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- CN205941779U CN205941779U CN201620847440.5U CN201620847440U CN205941779U CN 205941779 U CN205941779 U CN 205941779U CN 201620847440 U CN201620847440 U CN 201620847440U CN 205941779 U CN205941779 U CN 205941779U
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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
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- Locating Faults (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model relates to a transmission line fault point positioning system, include: locate the main fault monitoring device of main transformer substation, and locate from the transformer substation from the fault monitoring device, main fault monitoring device includes first electric signal processor, second electricity signal processor, first light signal processor, second light signal processor, first light source and industrial computer, include the 3rd optical signal processing ware, fourth optical signal processing ware and secondary light source from the fault monitoring device, the industrial computer respectively with first electric signal processor and second electricity signal processor be connected, first electric signal processor and the electric signal processor of second respectively with an optical signal processing ware and the 2nd optical signal processing ware are connected, an optical signal processing ware and the 2nd optical signal processing ware respectively with the 3rd optical signal processing ware and fourth optical signal processing ware are connected, first light source and secondary light source respectively with an optical signal processing ware and the 3rd optical signal processing ware are connected.
Description
Technical field
This utility model is related to technical field of power systems, more particularly to a kind of failure point of power transmission line alignment system.
Background technology
Transmission line of electricity short circuit tripping fault rate is to evaluate one of important indicator of electric power netting safe running reliability.In order to tackle
Short circuit accident runs, to transmission line of electricity, the impact causing it is necessary to monitor to transmission line short-circuit fault event real-time positioning, is
Fix a breakdown in time offer foundation.
Traditional failure point of power transmission line location technology typically to monitor fault using distributed optical fiber temperature sensing system
Point position, monitoring result is influenced by environmental temperature, and there is fault detect blind area, and Fault Identification effect is poor.
Utility model content
Based on this it is necessary to for the poor problem of Fault Identification effect, provide a kind of failure point of power transmission line positioning system
System.
A kind of failure point of power transmission line alignment system, including：
Major error monitoring device in Bulk Supply Substation communications equipment room；And
Located in transformer substation communication machine room from fault monitoring device；
Described major error monitoring device include the first electric signal processor, the second electric signal processor, at the first optical signal
Reason device, the second OSP, the first light source and industrial computer；
Described include the 3rd OSP, the 4th OSP and secondary light source from fault monitoring device；
Described industrial computer is connected with described first electric signal processor and the second electric signal processor respectively, and described first
Electric signal processor and the second electric signal processor respectively with described first OSP and the second OSP phase
Connect, described first OSP and the second OSP respectively with described 3rd OSP and the 4th light
Signal processor is connected, described first light source and secondary light source respectively with described first OSP and the 3rd optical signal
Processor is connected.
Above-mentioned failure point of power transmission line alignment system, using light signal processing device, electric signal process unit and industrial computer
Replace distributed optical fiber temperature sensing system, reduce the impact to monitoring result for the ambient temperature, Fault Identification effect is good, accurate
Property high.
Brief description
Fig. 1 is the structural representation of the failure point of power transmission line alignment system of an embodiment；
Fig. 2 is fault location schematic diagram；
Fault monitoring device and the moment schematic diagram receiving modulation waveform from fault monitoring device based on Fig. 3.
Specific embodiment
Below in conjunction with the accompanying drawings the embodiment of failure point of power transmission line alignment system of the present utility model is illustrated.
Fig. 1 is the structural representation of the failure point of power transmission line alignment system of an embodiment.As shown in figure 1, it is described defeated
Line fault point positioning system may include：
Major error monitoring device 10 in Bulk Supply Substation communications equipment room；And
Located in transformer substation communication machine room from fault monitoring device 20；
Described major error monitoring device 10 includes the first electric signal processor 101, the second electric signal processor 102, first
OSP 103, the second OSP 104, the first light source 105 and industrial computer 106；
Described include the 3rd OSP 201, the 4th OSP 202 and second from fault monitoring device 20
Light source 203；
Described industrial computer 106 is connected with described first electric signal processor 101 and the second electric signal processor 102 respectively
Connect, described first electric signal processor 101 and the second electric signal processor 102 respectively with described first OSP 103
It is connected with the second OSP 104, described first OSP 103 and the second OSP 104 are respectively
It is connected with described 3rd OSP 201 and the 4th OSP 202, described first light source 105 and the second light
Source 203 is connected with described first OSP 103 and the 3rd OSP 201 respectively.
Wherein, OPGW optical cable (OPGW), ADSS optical cable (All Dielectric self-support), OPPC can be adopted
Any one optical cable in optical cable (OPPC) etc. is realizing major error monitoring device 10 and from fault monitoring device 20
Between data interchange.Specifically, described first OSP 103 and the second OSP 104 pass through light respectively
Cable is connected with described 3rd OSP 201 and the 4th OSP 202, and described optical cable can be with power system
Transmission line of electricity is laid parallel.In the present embodiment, optical signal transmits in optical cable and is not susceptible to distortion, deformation, and decays
Very little, transmission speed is held essentially constant, and does not affect the due in of modulation waveform it is ensured that range accuracy.In addition, optical cable with
Power cable line is laid parallel, and the pulse voltage that transmission line malfunction produces there's almost no to the modulated process of optical signal prolongs
Problem late.
The first parallel optical fiber and the second optical fiber can be set in described optical cable.Described first OSP 103 connects
To described first optical fiber in the side of described Bulk Supply Substation, described second OSP 104 connects to described second optical fiber
In the side of described Bulk Supply Substation, described 3rd OSP 201 connects to described first optical fiber described from transformer station
Side, described 4th OSP 202 connects to described second optical fiber in the described side from transformer station.
First optical fiber two ends can be respectively provided with the first optical patchcord and the second optical patchcord；Second optical fiber two ends can set respectively
Put the 3rd optical patchcord and the 4th optical patchcord.Described first optical patchcord can be arranged on described first optical fiber in described main transformer
The side in power station, described second optical patchcord can be arranged on described second optical fiber in the side of described Bulk Supply Substation, and described
Three optical patchcords can be arranged on described first optical fiber in the described side from transformer station, and described 4th optical patchcord can be arranged
In described second optical fiber in the described side from transformer station.Described first OSP 103, the second OSP
104th, the 3rd OSP 201 and the 4th OSP 202 can be respectively connecting to described first optical patchcord, second
Optical patchcord, the 3rd optical patchcord and the 4th optical patchcord.
Described first optical patchcord, the end of the second optical patchcord, the 3rd optical patchcord and the 4th optical patchcord can respectively set
Put the fiber connector of a metal material.
Described major error monitoring device 10 may also include wave filter 107, and described wave filter 107 one end connects described industrial computer
106, the other end connects described first electric signal processor 101 and the second electric signal processor 102 respectively.
First electric signal processor 101 and the second electric signal processor 102 are respectively to the first OSP 103 and
The signal of two OSP 104 output is converted to current waveform, then gives wave filter 107 and processes, will be therein spuious
Waved filter falls, and then gives data industrial computer 106 and is calculated.
Described major error monitoring device 10 may also include power supply 108, described power supply 108 and described first electric signal processor
101st, the second electric signal processor 102, the first OSP 103, the second OSP 104, the first light source 105 and
Industrial computer 106 is connected.Described power supply 108 can be programmable power supply.
Described may also include power supply 204 from fault monitoring device 20, described power supply 204 and described 3rd OSP
201st, the 4th OSP 202 is connected with secondary light source 203.Described power supply 204 can be programmable power supply.
Described failure point of power transmission line alignment system, may also include and be connected to described major error monitoring device 10 and from fault
Synchronizer between monitoring device 20.Described synchronizer can be entered to major error monitoring device 10 with from fault monitoring device 20
Row time calibration, can synchronous major error monitoring device 10 and the time from fault monitoring device 20, when reducing the fault obtaining
The error carved, makes range finding more accurate.
Described industrial computer 106 may include data processing card 106a, is arranged on the bus slot of described industrial computer 106；Institute
State data processing card 106a to be connected with described first electric signal processor 101 and the second electric signal processor 102.
First light source 105 can produce the first optical signal, through optical cable transmission to the after processing through the first OSP 103
Three OSPs 201, secondary light source 203 can produce the second optical signal, through light after processing through the 4th OSP 202
Cable transmits to the second OSP 104.When transmission line of electricity breaks down, fault current can be to the first optical signal and second
Optical signal is modulated, and generates the first modulation waveform and the second modulation waveform respectively.Optical cable can be described as sensor sensing
First modulation waveform and the second modulation waveform, and it is respectively sent to the 3rd OSP 201 and the second OSP
104.When 3rd OSP 201 and the second OSP 104 can record receive modulation waveform first respectively
Quarter is worth and the second moment value, and this first moment value and the second moment value are sent to industrial computer 106, and industrial computer 106 can connect
Receive described first moment value, the second moment value, and export the distance of trouble point and the first monitoring machine.Positioning principle is as shown in Figure 2.
In the present embodiment, it is by the way of both-end is to penetrating optical signal, and first being respectively received according to both-end
Second moment value of the modulation waveform of adjustment first moment value of waveform of optical signal and the second optical signal, the first optical signal and the
The spread speed of two optical signals, and the transmission channel length of optical signal is obtaining trouble point and the first optical signal launch position
Distance.Due to employing both-end to penetrating, no matter so which position between both-end for the trouble point, one end only receives a modulation
Waveform, it is possible to resolve because detection optical signal duration is long or fault occurs meeting place near two fiber optic loop, signal will in front and back
There is the overlapping problem leading to before and after's signal identification difficult, improve the accuracy of range finding, and pass with respect to distribution type fiber-optic
Sense trouble point temperature localization method, this programme is not limited by system equipment spatial resolution, is not also subject to ambient temperature
Impact, its practicality is higher with feasibility.
Wherein in an embodiment, the frequency of the first optical signal and the second optical signal is different.First optical signal and second
The frequency of optical signal is different, more easily discriminates between the first optical signal and the second optical signal in same transmission channel.
As an Application Example, industrial computer 106 can be according to described first moment value, the second moment value, the first light
The length of the spread speed of signal and the second optical signal and transmission channel obtains the distance of trouble point and the first monitoring machine, should
Existing computational methods can be adopted with embodiment, software need not be improved.For example, wherein in an embodiment, can
According to D=, (L-v × Δ t)/2 obtains the distance of trouble point and the first optical signal launch position, and wherein, D represents trouble point and the
The distance of one monitoring machine, L represents the transmission channel length that default first optical signal is located, and v represents the first optical signal and second
The transmission speed of optical signal, typically takes that the transmission speed of the first optical signal and the second optical signal is identical, and Δ t represents the first moment value
Time difference with the second moment value.Major error monitoring device 10 and the moment receiving modulation waveform from fault monitoring device 20 are shown
It is intended to as shown in Figure 3.
The distance-finding method of transmission line malfunction uses optical cable to receive fault audio frequency vibration signal, does not exist to return and penetrates phenomenon and resistance
Resist unmatched situation, Fault Identification effect is good, the audio frequency vibration that pulse voltage impact produces changes the light of two reverse transfer
Signal, the frequency of the optical signal of this two reverse transfer is different, does not interfere with each other, and there is not incidence wave and echo overlapping phenomenon,
The blind zone problem avoiding before and after's signal overlap and leading to.By the optical signal after the modulation of fault audio frequency vibration in transmitting procedure
It is little that the little, signal of decay is disturbed little, waveform change, has substantially no effect on modulation waveform due in it is ensured that range accuracy.Two is reverse
The optical signal line width of transmission, and optical fiber transmission medium is uniformly, ensure that the signaling rate of determination, can solve traveling wave
The uncertain problem of velocity of wave in fault locating methods.When fault audio frequency vibration is to optical signal modulation, polarization state almost instantaneously rings
Should, and the sampling rate of monitoring device to more than several megahertzs, machine system can effectively solve the problem that existing TRAVELING WAVE FAULT LOCATION
Dynamic time delay problem.Additionally, the modulation waveform that fault positioning method for transmission line monitoring is led to by audio frequency vibration signal,
The problem of Existential Space resolution, not practical.Compared to distributed optical fiber temperature sensing system, transmission of electricity of the present utility model
Before and after circuit fault distance measurement, signal will not occur overlapping situation, overcomes check frequency difficult with signal identification in front and back
Problem.
Each technical characteristic of embodiment described above can arbitrarily be combined, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic applied in example is all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope of this specification record.
Embodiment described above only have expressed several embodiments of the present utility model, and its description is more concrete and detailed,
But therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, some deformation can also be made and improve, these broadly fall into
Protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be defined by claims.
Claims (10)
1. a kind of failure point of power transmission line alignment system is it is characterised in that include：
Major error monitoring device in Bulk Supply Substation communications equipment room；And
Located in transformer substation communication machine room from fault monitoring device；
Described major error monitoring device include the first electric signal processor, the second electric signal processor, the first OSP,
Second OSP, the first light source and industrial computer；
Described include the 3rd OSP, the 4th OSP and secondary light source from fault monitoring device；
Described industrial computer is connected with described first electric signal processor and the second electric signal processor respectively, described first telecommunications
Number processor and the second electric signal processor are connected with described first OSP and the second OSP respectively,
Described first OSP and the second OSP respectively with described 3rd OSP and the 4th optical signal
Processor is connected, described first light source and secondary light source respectively with described first OSP and the 3rd optical signal prosessing
Device is connected.
2. failure point of power transmission line alignment system according to claim 1 is it is characterised in that described first optical signal prosessing
Device and the second OSP are respectively by the optical cable and described 3rd light letter with the parallel laying of the transmission line of electricity of power system
Number processor and the 4th OSP are connected.
3. failure point of power transmission line alignment system according to claim 2 is it is characterised in that described optical cable is OPGW light
Cable, ADSS optical cable or OPPC optical cable.
4. failure point of power transmission line alignment system according to claim 2 it is characterised in that described optical cable include parallel
First optical fiber and the second optical fiber；
Described first OSP connects to described first optical fiber in the side of described Bulk Supply Substation, described second optical signal
Processor connects to described second optical fiber in the side of described Bulk Supply Substation, and described 3rd OSP connects to described
One optical fiber connects to described second optical fiber described from power transformation in the described side from transformer station, described 4th OSP
The side stood.
5. failure point of power transmission line alignment system according to claim 4 is it is characterised in that described first optical fiber is described
The side of Bulk Supply Substation is provided with the first optical patchcord, and described second optical fiber is provided with the second optical fiber in the side of described Bulk Supply Substation and jumps
Line, described first optical fiber is provided with the 3rd optical patchcord described from the side of transformer station, and described second optical fiber is described from power transformation
The side stood is provided with the 4th optical patchcord；
Described first OSP, the second OSP, the 3rd OSP and the 4th OSP
It is respectively connecting to described first optical patchcord, the second optical patchcord, the 3rd optical patchcord and the 4th optical patchcord.
6. failure point of power transmission line alignment system according to claim 5 it is characterised in that described first optical patchcord,
The end of the second optical patchcord, the 3rd optical patchcord and the 4th optical patchcord is respectively provided with the fiber connector of a metal material.
7. failure point of power transmission line alignment system according to claim 1 is it is characterised in that described major error monitoring device
Also include：
Wave filter；
Described wave filter one end connects described industrial computer, and the other end connects described first electric signal processor and the second telecommunications respectively
Number processor.
8. failure point of power transmission line alignment system according to claim 1 is it is characterised in that described major error monitoring device
Also include：
Power supply；
Described power supply and described first electric signal processor, the second electric signal processor, the first OSP, the second light letter
Number processor, the first light source are connected with industrial computer.
9. failure point of power transmission line alignment system according to claim 8 is it is characterised in that described power supply is program-controlled electric
Source.
10. failure point of power transmission line alignment system according to claim 1 is it is characterised in that described industrial computer includes：
Data processing card, is arranged on the bus slot of described industrial computer；
Described data processing card is connected with described first electric signal processor and the second electric signal processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620847440.5U CN205941779U (en) | 2016-08-05 | 2016-08-05 | Transmission line fault point positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620847440.5U CN205941779U (en) | 2016-08-05 | 2016-08-05 | Transmission line fault point positioning system |
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| Publication Number | Publication Date |
|---|---|
| CN205941779U true CN205941779U (en) | 2017-02-08 |
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| CN201620847440.5U Active CN205941779U (en) | 2016-08-05 | 2016-08-05 | Transmission line fault point positioning system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763956A (en) * | 2019-12-26 | 2020-02-07 | 华中科技大学 | Space division multiplexing-based optical fiber polarization sensing lightning positioning system and method |
| CN112578220A (en) * | 2020-11-26 | 2021-03-30 | 贵州电网有限责任公司 | Underground cable fault on-line positioning system and method |
-
2016
- 2016-08-05 CN CN201620847440.5U patent/CN205941779U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763956A (en) * | 2019-12-26 | 2020-02-07 | 华中科技大学 | Space division multiplexing-based optical fiber polarization sensing lightning positioning system and method |
| CN110763956B (en) * | 2019-12-26 | 2020-04-10 | 华中科技大学 | Space division multiplexing-based optical fiber polarization sensing lightning positioning system and method |
| CN112578220A (en) * | 2020-11-26 | 2021-03-30 | 贵州电网有限责任公司 | Underground cable fault on-line positioning system and method |
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