CN104596583B - A kind of OPPC online monitoring systems for being used to monitor transmission line of electricity running status - Google Patents
A kind of OPPC online monitoring systems for being used to monitor transmission line of electricity running status Download PDFInfo
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- CN104596583B CN104596583B CN201510032540.2A CN201510032540A CN104596583B CN 104596583 B CN104596583 B CN 104596583B CN 201510032540 A CN201510032540 A CN 201510032540A CN 104596583 B CN104596583 B CN 104596583B
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Abstract
The present invention relates to a kind of OPPC online monitoring systems for being used to monitor transmission line of electricity running status, including：Transmission line of electricity, local supervising and measuring equipment and the long-distance monitorng device that new OPPC is formed；In new OPPC tight tube fiber is provided with the first light unit；Loose tube fiber is provided with second light unit；Field monitoring module is provided with：Monitoring modular and security isolation module；Local supervising and measuring equipment is accessed in circuit one end again through splice tray, guiding optical cable incoming fiber optic distributing frame, and the circuit other end is through splice tray, guiding optical cable incoming fiber optic distributing frame and the jumping fiber loopback on fibre distribution frame；Long-distance monitorng device includes：Monitoring management module, data center module, data analysis module.A kind of OPPC online monitoring systems for being used to monitor transmission line of electricity running status proposed by the invention, realize and whole real-time continuous monitoring is carried out to OPPC line temperatures, current-carrying capacity and stress, strong technical support is provided for circuit operating maintenance, ensures electric power netting safe running.
Description
Technical field
It is particularly a kind of to be used to monitor transmission line of electricity running status the present invention relates to the monitoring of optical phase conductor
OPPC online monitoring systems.
Background technology
With the rapid development of the national economy, energy usage amount sharply increases, it is particularly big to the demand of electric power resource
Amplitude improve, adjustment and optimization electric power resource, realize power network intellectuality by be power industry realize transition the only way which must be passed.Intelligence
Power network is by advanced sensing measurement technique, ICT, analysis decision technology and automatic control technology and energy electricity
Power technology and power network infrastructure it is highly integrated and formed new-modernization power network.Power transmission network intellectuality is intelligent grid
Key component.China is vast in territory, geographical environment difference is obvious, and transmission line of electricity distribution is very big, service condition is complicated, easily by
Natural environment influence and external force are destroyed, and the inspection maintenance work to transmission line of electricity brings great difficulty.
In recent years, what is proposed both at home and abroad will be used for overhead transmission line on-line monitoring field in optical sensor system, realize
The parameter measurements such as conductor temperature, wire strain, ice covering thickness, conducting wire sag.Patent of invention " power transmission line sag on-line monitoring system
System "（Application number 200910089445.0）, the fiber grating monitoring system of transmission line of electricity " be used for "（Application number
200910237747.8）Etc. patent propose using fiber grating sensing technology realize to the icing of transmission line of electricity, wave etc. it is existing
As on-line monitoring.In the method, it is necessary to design special fiber grating line tension test sensor, pulling force sensor is installed on
Between insulator chain and hanging plate（Substitute original globe joint）, realize strain, the dip angle parameter measurement of hitch point.But this method
Strain, the obliquity information of hitch point have only been monitored, has belonged to point measurement, Monitoring Data point is few." transmission line of electricity monitors patent of invention
Method and device "（Grant number CN101614602B）One kind is disclosed to monitor transmission line of electricity in real time using fibre optical sensor
Method and apparatus, this method propose optical fiber is both sensor, and signal transmssion line, breaches the limitation of point measurement
Property, realize transmission line of electricity complete monitoring；But this method needs additionally to arrange fibre optical sensor along transmission line of electricity, and require with it is defeated
Electric line is in close contact, and this is difficult on actual work transmission line." extra high voltage network is online for utility model patent
Comprehensive monitor system "（Grant number CN202757987U）It is comprehensive to disclose a kind of intelligence including distribution type fiber-optic In-Line Temperature Measure System
Monitoring system is closed, the sensing optic cable of distribution type fiber-optic In-Line Temperature Measure System is implanted into power cable, can monitor conductor temperature in real time
The dynamic current-carrying capacity of degree and cable.But distribution type fiber-optic In-Line Temperature Measure System can only utilize sensor fibre to realize transmission of electricity in the patent
The measurement of line temperature, it is impossible to realize transmission line of electricity strain measurement, and strain size for transmission line of electricity sag, dance
The state researchs such as dynamic, icing are significant.
The content of the invention
It is used to monitor the OPPC online monitoring systems of transmission line of electricity running status it is an object of the invention to provide a kind of, with
Realize the running state real-time monitoring to transmission line of electricity.
To achieve the above object, the technical scheme is that：A kind of OPPC for being used to monitor transmission line of electricity running status
Online monitoring system, it is characterised in that including：OPPC, local supervising and measuring equipment and long-distance monitorng device；The scene
Monitoring device is provided with：Field monitoring module and security isolation module；The field monitoring module is described defeated for obtaining in real time
The field monitoring data of electric line；The field monitoring module is connected to described through the security isolation module by telecommunication
Long-distance monitorng device；The long-distance monitorng device includes：Monitoring management module, data center module and data analysis module；Institute
Field monitoring data described in long-distance monitorng device real-time reception are stated, and handled, stored and is analyzed；The monitoring management module
The data analysis module is connected to through the data center module.
In an embodiment of the present invention, the OPPC uses new OPPC；The new OPPC includes first
Light unit and the second light unit；The central core of the new OPPC, and the first light list are arranged in first light unit
The tight tube fiber for transmission line of electricity strain monitoring is provided with member；It is arranged on the new OPPC's in second light unit
Stranded layer, and loose tube fiber and an at least fibre core for temperature of electric transmission line monitoring are provided with second light unit
Remaining a length of 0.5%-0.8%.
In an embodiment of the present invention, be additionally provided with the new OPPC aluminum-clad steel wire and（Or）Aluminum steel；The aluminium bag
Steel wire and（Or）Aluminum steel is arranged at the stranded layer of the new OPPC.
In an embodiment of the present invention, described field monitoring module include scene temperature monitoring and strain monitoring module,
Environment temperature monitoring modular and air monitoring module.
In an embodiment of the present invention, the local supervising and measuring equipment also includes a temperature monitoring module and strain monitoring mould
Block, and the temperature monitoring module and strain monitoring module calculate the temperature of the OPPC in the following way：, the strain of the OPPC is calculated in the following way：, wherein, L is distance of the light unit to monitoring device,For
First light unit brillouin frequency Spectral structure information,For the second light unit brillouin frequency Spectral structure information,For
The variable quantity of one light unit temperature,For the variable quantity of the second light unit temperature,For the strain of the first light unit
Variable quantity,The variable quantity strained for the second light unit,For the first light unit Brillouin shift temperature coefficient,For
Second light unit Brillouin shift temperature coefficient,For the first light unit Brillouin shift coefficient of strain,For the second light unit
The Brillouin shift coefficient of strain；And the first light unit Brillouin shift temperature coefficient, the second light unit Brillouin
Frequency displacement temperature coefficient, the first light unit Brillouin shift coefficient of strainAnd the second light unit Brillouin shift
The coefficient of strainBy testing, tight tube fiber and loose tube fiber obtain in the first light unit, the second light unit in the new OPPC
.
In an embodiment of the present invention, the monitoring management module includes：Variable management module, graphic monitoring module, report
Alert module, data memory module and authority management module；The variable management module be used for manage sensing variable, linear variable,
Current-carrying capacity variable and controlled variable；The graphic monitoring module is used for being supervised in the variable management module to dependent variable and scene
Survey the display and monitoring of data；The alarm module receives the warning message that the distributed sensor uploads, and passes through the figure
Shape monitoring module completes the display of the particular location of alarm；The authority management module is used to carry out pipe to the access right of user
Reason；The data center module includes：Data memory module and data service module；The data analysis module includes：Distribution
Formula data readback and overlap analysis mode, distributed data historical analysis module, distributed data stability analysis module.
Further, a kind of OPPC on-line monitoring methods for being used to monitor transmission line of electricity running status, its feature are also provided
It is, comprises the steps：
S1：The circuit being made up of new OPPC, wherein a power transformation are set up on terminal tower between Liang Ge transformer stations
Communications equipment room of standing is interior to set the first fibre distribution frame and local supervising and measuring equipment, and second is set in another transformer substation communication computer room
Fibre distribution frame, the both ends of the circuit are respectively by guiding transformer substation communication computer room corresponding to optical cable introducing, and the guiding
Optical cable uses the ADSS or normal light with quantity optical fiber with the first light unit in the new OPPC and the second light unit same type
Cable；
S2：The tight tube fiber and loose tube fiber in the circuit and two guiding optical cable corresponding ports are obtained respectively；By institute
State circuit one end and the tight tube fiber in wherein one guiding optical cable one end and loose tube fiber difference welding, and by the tight set after welding
Optical fiber and loose tube fiber coiling are fixed in a splice tray, and the splice tray is arranged on a terminal tower；The circuit is another
End and the tight tube fiber in another guiding optical cable one end and loose tube fiber difference welding, and the tight tube fiber after welding and pine are covered
Fiber reel is around being fixed in another splice tray, and the splice tray is arranged on another terminal tower；It is respectively that two guiding optical cables are another
One end corresponds into respectively holds in first fibre distribution frame and second fibre distribution frame；With jumping fiber by first optical fiber
Distributing frame is connected with the local supervising and measuring equipment, with jumping fiber by into holding in the tight tube fiber on second fibre distribution frame and pine
Unjacketed optical fiber is attached, to form a monitoring circuit；The splice tray is a kind of to be resistant to good special of high pressure, insulating properties and connect
Continuous box
S3：Environment temperature monitoring modular and air monitoring module are laid on the circuit；
S4：Start the field monitoring module in the local supervising and measuring equipment, to fiber optic temperature in the circuit and strain into
Row whole follow-on test, and every T seconds automatic record and the temperature and strain value of one group of collection of preservation in real time；Every T hours from
Dynamic record and the environment temperature and air speed value for preserving one group of collection；
S5：Field monitoring modules acquiring data delivers to long-distance monitorng device through security isolation module by telecommunication, institute
State long-distance monitorng device and institute is obtained according to field measurement data, current-carrying capacity mathematics model of stable state and current-carrying capacity transient mathematical model
The current-carrying capacity in circuit is stated, and analyzes the circuit stressing conditions.
In an embodiment of the present invention, in the step S5, the current-carrying capacity mathematics model of stable state is：
；The current-carrying capacity transient mathematical model is：；Wherein,For current-carrying capacity,For to wandering
Thermal power,For heat loss through radiation power,For solar radiation Endothermic power,It is for conductive line surfaces temperatureWhen wire
The AC resistance of unit length, m are the quality of unit length wire,For the specific heat capacity of wire.
A kind of OPPC online monitoring systems for being used to monitor transmission line of electricity running status proposed by the invention, by using
New OPPC structures, loose tube fiber and tight tube fiber are set in the new OPPC, filled using Brillouin scattering distributed monitoring
Put, realize whole continuous monitoring electric aerial optical cable temperature and the purpose of strain.The monitoring method realizes length and is not more than
The whole monitoring in real time of 75km transmission lines of electricity, the line length sampling interval is up to 0.1 ~ 1m；One group of temperature and dependent variable are measured every 20S
According to, and record and preserve automatically, temperature accuracy reaches°C, temperature resolution is 0.1 °C；Strain precision reaches, answer variation
Resolution is.And status monitoring and analyzing and diagnosing integrated software are developed, the whole process for realizing transmission line status operation is real
When monitor, no measurement dead area, without extra placement sensor, construction is simple is convenient, realize line facility by periodic inspection to
Mode of condition-oriented overhaul changes, and can find that line security is hidden in time by the transmission line online monitoring system, technical staff
Suffer from, failure cause is searched in analysis, and organizational strength carries out rapid rush-repair, improves line security, improve traditional maintenance pipe
Reason mode, facilitates operation maintenance, has been effectively saved manpower and materials, improves normal operation level, ensure that transmission of electricity
Line security stable operation, while the online monitoring system also complies with intelligent grid developing direction.
Brief description of the drawings
Fig. 1 is the schematic diagram for the OPPC online monitoring systems that transmission line of electricity running status is monitored in the present invention.
Fig. 2 is new OPPC structure charts in the present invention.
Fig. 3 is the connection diagram of the OPPC online monitoring systems of present invention monitoring transmission line of electricity running status.
Fig. 4 is medium-long range supervising device of the present invention composition figure.
Fig. 5 is that medium-long range supervising device of the present invention realizes OPPC on-line monitoring schematic diagrams.
Fig. 6 is that main interface schematic diagram is monitored in medium-long range supervising device of the present invention.
Fig. 7 is the connection diagram of local supervising and measuring equipment in the present invention.
Embodiment
Below in conjunction with the accompanying drawings, technical scheme is specifically described.
The present invention provides a kind of OPPC online monitoring systems for being used to monitor transmission line of electricity running status, it is characterised in that
As shown in figure 1, including：OPPC, local supervising and measuring equipment and long-distance monitorng device；The OPPC is using new
Type OPPC.
In the present embodiment, as shown in Fig. 2 the new OPPC includes the first light unit 1 and the second light unit 2；It is described
The central core of the OPPC transmission lines of electricity is arranged in first light unit 1, and is provided with first light unit 1 for transmitting electricity
2 core tight tube fibers 11 of circuit strain monitoring, and remaining a length of the zero of the tight tube fiber 11, core diameter 0.9mm；Further,
First light unit 1 also includes being used for the stainless steel tube for placing the tight tube fiber 11, and the stainless steel tube is a diameter of
2.7mm；In addition, first light unit 1 is also filled with ointment.
The stranded layer of the new OPPC is arranged in second light unit 2, and is provided with second light unit 2
For 12 core loose tube fibers 21 of temperature of electric transmission line monitoring, and the loose tube fiber 21 with remaining a length of 0.5% ~ 0.8%, core diameter
For 250 microns；Further, second light unit 2 also includes being used for the stainless steel tube for placing the loose tube fiber 21, and should
The a diameter of 2.7mm of stainless steel tube；In addition, ointment is also filled with second light unit 2.
In the present embodiment, the stranded layer is additionally provided with aluminum-clad steel wire 3, altogether including 5 aluminum-clad steel wires, and every aluminium bag
A diameter of 2.7mm of steel wire.The aluminum steel 4 is stranded in the periphery of the stranded layer；In the present embodiment, in the stranded layer
The twisted aluminum steel for having two layers of a diameter of 3.45mm in periphery, wherein, first layer is twisted 10 aluminum steels, and the second layer is twisted 16 aluminium
Line, and the diameter of whole optical phase conductor is 21.90mm.In addition, in the present embodiment, it is arranged on the aluminium bag of stranded layer
Steel wire 3 can use aluminum steel.
The local supervising and measuring equipment is provided with：Field monitoring module and security isolation module；The field monitoring module is used
In the field monitoring data for obtaining the transmission line of electricity in real time.The field monitoring module passes through remote through the security isolation module
Journey is communicatively connected to the long-distance monitorng device；Further, for meet remote monitoring and other operation systems exploitation need
Will, real time monitoring data are transmitted to long-distance monitorng device by Internet network.As shown in figure 3, local supervising and measuring equipment
Through security isolation module by Ethernet access long-distance monitorng device, with monitor in real time OPPC temperature of electric transmission line and current-carrying capacity,
Strain and the change of stress, facilitate the shared of circuit real time temperature and strain monitoring data and other application system, such as frame
The systems such as ceases to be busy road integrated monitoring platform, sag analysis, dynamic compatibilization, improve the flexibility of deployment, in addition, also causing temperature
The backup of strain monitoring data and shared more convenient.In the present embodiment, security isolation module uses fire wall, and sets tight
The access control policy of lattice, with ensure field monitoring data be uploaded to long-distance monitorng device during security.
In the present embodiment, the field monitoring module includes temperature monitoring and strain monitoring module, environment temperature monitoring
Module and air monitoring module.
In the present embodiment, temperature monitoring module and strain monitoring module use a Brillouin optical time domain analysis instrument.It is described
Brillouin optical time domain analysis instrument has two optical ports, and the first optical port, which has, sends continuous laser semiotic function, the second light end
Mouth is used to send pulsed laser signal, while has the brillouin frequency spectrum signal function of receiving and feed back；Brillouin optical time domain analysis
After instrument receives the first light unit of electric aerial optical cable inside, the second light unit inner fiber scattered signal, first is calculated in real time
Brillouin's frequency spectrum whole process distributed intelligence of light unit inner fiberIt is whole with Brillouin's frequency spectrum of the second light unit inner fiber
Distributed intelligence,LDistance for light unit to Brillouin optical time domain analysis instrument.Light in first light unit, the second light unit
Fine Brillouin's frequency spectrum is designated as equation below respectively with temperature and the corresponding relation of strain：
In formula、The Brillouin shift temperature coefficient of respectively the first light unit, the second light unit,、Respectively
For the Brillouin shift coefficient of strain of the first light unit, the second light unit.、Respectively the first light unit,
The variable quantity of two light unit temperature,、Respectively the first light unit, the variable quantity of the second light unit strain.
In aerial optical cable same position, the temperature variation that the first light unit, the second light unit inner fiber are born is identical,
I.e.；And the first light unit and second unit are in the inside of electric aerial optical cable, it is more that it is outside
Layer aluminum stranded conductor, overhead line cross section can be approximately an equally distributed thermal field, i.e. the first light unit, the second light unit inner fiber
Temperature change、The temperature change of aerial optical cable can be equivalent to, is remaining additionally, due to the second light unit inside
Long larger loose tube fiber, even if aerial optical cable has strain and tensile deformation occurs, can't also make loose tube fiber stress,
Therefore the loose tube fiber in the second light unit is only relevant with the temperature of overhead transmission line, and unrelated with strain, i.e.,It is always
0.Pass through formula（2）In the second light unit Brillouin shift draw the first light unit, the temperature of the second light unit same position become
Change amount is：
First light unit internal optical fiber is the tight tube fiber without remaining length, and is located at aerial optical cable center, in the absence of strand
It is long more than conjunction, therefore the tight tube fiber that strain when electric aerial optical cable deforms upon will be directly passed in first module, first
The strain variation of tight tube fiber in light unitThe strain variation of aerial optical cable can be equivalent to.Optical fiber in first light unit
Brillouin's frequency spectrumWith temperatureAnd strainIt is simultaneously related, by formula（3）Bring formula into（1）In draw first
Light unit strain variation amountFor：
First light unit, the second light unit Brillouin shift temperature coefficient、And first light unit, the second light unit
The Brillouin shift coefficient of strain、It can be drawn by demarcation or empirical value, therefore pass through formula（3）And formula（4）It can obtain
Electric aerial optical cable temperature and the whole distribution of strain.Further, the first light unit, the second light unit Brillouin shift temperature
Coefficient、And first light unit, the second light unit Brillouin shift coefficient of strain、It is described new by testing
Tight tube fiber and loose tube fiber obtain in the first light unit, the second light unit in OPPC.
Further, as shown in figure 4, the long-distance monitorng device includes：Monitoring management module, data center module sum
According to analysis module；The monitoring management module includes：Variable management module, graphic monitoring module, alarm module, data storage mould
Block and authority management module；The monitoring management module is connected to the data analysis module through the data center module, and
Described monitoring management module, data center module and data analysis module is deployed on corresponding server host；It is described
Field monitoring data described in long-distance monitorng device real-time reception.
In the present embodiment, the definition to sensing data for the convenience of the user, increases " variable " concept, and the variable of definition can be with
Combination algorithm calculates new variable.System defines four kinds of algorithmic variables, including sensing variable, linear variable, current-carrying quantitative change
Amount, controlled variable.The variable management module is used to manage sensing variable, linear variable, current-carrying capacity variable and controlled variable.Pass
Sense variable can take out certain point or a certain section of maximum from the array of sensing data, and the type variable is most basic change
Amount, its dependent variable are all based on the type variable and recalculated.Linear variable is applied to the wavelength sensitive value from grating, fortune
Calculate temperature and strain.Current-carrying capacity variable show that controlled variable can lead to by computings such as the temperature, meteorology, cable data that input
Manual edit value corresponding to it is crossed, can be used for other variable parameters, conveniently manually adjust.
In the present embodiment, the graphic monitoring management module be used in the variable management module to dependent variable and original
The display and monitoring for the sensing array that begins；Two kinds of graphic display modes defined in monitoring module, display and original based on variable
The display for the sensing array that begins.The mode of variable is shown in a manner of note control, defines display location, display size and background
Color etc..The display of raw sensory array, the size using color as sensed values, shown with the colored curve of a physical space trend
Show.
The alarm module receives the warning message that the distributed sensor uploads, complete by the graphic monitoring module
Into the display of the particular location of alarm；Alarm module receives BOTDA warning message, is shown on the curve of physical space trend
Alert locations, in this process, the threshold value of variable can be set by variable control, and be indicated with different background colour.
The data memory module is used to store described Monitoring Data, and all variables can be certain
Interval is saved in database, so that historical analysis uses.
The authority management module is used to be managed the access right of user, facilitates the use of control software function.
In the present embodiment, the data center module includes：Distributed Storage module and data service module.Point
Cloth data memory module can connect the data of more local supervising and measuring equipment tests, and by the sensing data of upload with " equipment
Address->Channel name->Days->Data type " path stores.In data service module, service of the distributed data through exploitation
The data-query interfaces that program provides, linking parsing software.
In the present embodiment, the data analysis module includes：Distributed data plays back and overlap analysis mode, distribution
Data history analysis module, distributed data stability analysis module；Distributed data plays back and overlap analysis mode is used to look into
The data of certain time period are ask, and can continuously be played, check data situation, there is provided two kinds of single curve and Overlapping display
Mode.Distributed data historical analysis module is used to inquire about certain time period, a certain position or a certain section of maximum and is averaged
The situation of change of value.Distributed data stability analysis module is used to inquire about a period of time, and the data of all positions are in the time
On maximum and average value, assess data stability in time.
In the present embodiment, as shown in figure 5, the long-distance monitorng device carries out big data by comprehensive analysis management software
The path monitoring data such as processing, storage and comprehensive analysis, generation OPPC temperature, strain, current-carrying capacity, and pass through graphic monitoring module
It is shown, the signal of monitoring main interface is as shown in fig. 6, realize the whole continuous comprehensively monitoring of transmission line of electricity.
Further, it is used to monitor transmission line of electricity to allow those skilled in the art to know more about one kind proposed by the invention
The OPPC online monitoring systems of running status, as shown in fig. 7, also providing a kind of OPPC for being used to monitor transmission line of electricity running status
On-line monitoring method, comprises the steps：
S1：The circuit being made up of new OPPC, wherein a power transformation are set up on terminal tower between Liang Ge transformer stations
Communications equipment room of standing is interior to set the first fibre distribution frame and local supervising and measuring equipment, and second is set in another transformer substation communication computer room
Fibre distribution frame, the both ends of the circuit are respectively by guiding transformer substation communication computer room corresponding to optical cable introducing, and the guiding
Optical cable uses the ADSS or normal light with quantity optical fiber with the first light unit in the new OPPC and the second light unit same type
Cable；
S2：The tight tube fiber and loose tube fiber in the circuit and two guiding optical cable corresponding ports are obtained respectively；By institute
State circuit one end and the tight tube fiber in wherein one guiding optical cable one end and loose tube fiber difference welding, and by the tight set after welding
Optical fiber and loose tube fiber coiling are fixed in a splice tray, and the splice tray is arranged on a terminal tower；The circuit is another
End and the tight tube fiber in another guiding optical cable one end and loose tube fiber difference welding, and the tight tube fiber after welding and pine are covered
Fiber reel is around being fixed in another splice tray, and the splice tray is arranged on another terminal tower；It is respectively that two guiding optical cables are another
One end corresponds into respectively holds in first fibre distribution frame and second fibre distribution frame；With jumping fiber by first optical fiber
Distributing frame is connected with the local supervising and measuring equipment, with jumping fiber by into holding in the tight tube fiber on second fibre distribution frame and pine
Unjacketed optical fiber is attached, to form a monitoring circuit；The splice tray is a kind of to be resistant to good special of high pressure, insulating properties and connect
Continuous box
S3：Environment temperature monitoring modular and air monitoring module are laid on the circuit；
S4：Start the field monitoring module in the local supervising and measuring equipment, to fiber optic temperature in the circuit and strain into
Row whole follow-on test, and every T seconds automatic record and the temperature and strain value of one group of collection of preservation in real time；Every T hours from
Dynamic record and the environment temperature and air speed value for preserving one group of collection；
S5：Field monitoring modules acquiring data delivers to long-distance monitorng device through security isolation module by telecommunication, institute
State long-distance monitorng device and institute is obtained according to field measurement data, current-carrying capacity mathematics model of stable state and current-carrying capacity transient mathematical model
The current-carrying capacity in circuit is stated, and analyzes the circuit stressing conditions.
In the present embodiment, in the step S5, the current-carrying capacity mathematics model of stable state is：；Institute
Stating current-carrying capacity transient mathematical model is：；Wherein,For current-carrying capacity,For heat loss through convection
Power,For heat loss through radiation power,For solar radiation Endothermic power,It is for conductive line surfaces temperatureWhen wire list
The AC resistance of bit length, m are the quality of unit length wire,For the specific heat capacity of wire.
Above is presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, caused function are made
During with scope without departing from technical solution of the present invention, protection scope of the present invention is belonged to.
Claims (1)
- A kind of 1. OPPC online monitoring systems for being used to monitor transmission line of electricity running status, it is characterised in that including：Optical fiber is compound Phase line, local supervising and measuring equipment and long-distance monitorng device；The local supervising and measuring equipment is provided with：Field monitoring module and security isolation Module；The field monitoring module is used for the field monitoring data for obtaining the transmission line of electricity in real time；The field monitoring module The long-distance monitorng device is connected to by telecommunication through the security isolation module；The long-distance monitorng device includes：Prison Control management module, data center module and data analysis module；Field monitoring number described in the long-distance monitorng device real-time reception According to, and handled, stored and analyzed；The monitoring management module is connected to the data analysis through the data center module Module；The OPPC uses OPPC；The OPPC includes the first light unit and the second light unit；The first light list Member is arranged on the central core of the OPPC, and the tight set light for transmission line of electricity strain monitoring is provided with first light unit It is fine；Remaining a length of the zero of the tight tube fiber, core diameter 0.9mm；First light unit also includes being used to place the tight set light Fine stainless steel tube, and a diameter of 2.7mm of the stainless steel tube；First light unit is also filled with ointment；Second light unit is arranged on the stranded layer of the OPPC, and is provided with second light unit for transmission line of electricity A length of 0.5%-0.8% more than the loose tube fiber of temperature monitoring and at least a fibre core；Core diameter is 250 microns；Described second Light unit also includes being used for the stainless steel tube for placing the loose tube fiber, and a diameter of 2.7mm of the stainless steel tube；Second light Ointment is also filled with unit；Aluminum-clad steel wire and/or aluminum steel are additionally provided with the OPPC；The aluminum-clad steel wire and/or aluminum steel are arranged at the OPPC's Stranded layer；The local supervising and measuring equipment also includes a temperature monitoring module and strain monitoring module, temperature monitoring module and strain monitoring Module uses a Brillouin optical time domain analysis instrument；The Brillouin optical time domain analysis instrument has two optical ports, the first optical port With continuous laser semiotic function is sent, the second optical port is used to send pulsed laser signal, while has the cloth for receiving and feeding back In deep spectrum signal function；Brillouin optical time domain analysis instrument receives the first light unit, the second light list inside electric aerial optical cable After first inner fiber scattered signal, Brillouin's frequency spectrum whole process distributed intelligence Δ υ of the first light unit inner fiber is calculated in real timeB1(L) With Brillouin's frequency spectrum whole process distributed intelligence Δ υ of the second light unit inner fiberB2(L)；The temperature monitoring module and strain monitoring mould Block calculates the temperature of the OPPC in the following way：Using such as Under type calculates the strain of the OPPC：Wherein, L is light Unit is to the distance of monitoring device, Δ υB1(L) it is the first light unit brillouin frequency Spectral structure information, Δ υB2(L) it is the second light list First brillouin frequency Spectral structure information, Δ T1(L) it is variable quantity, the Δ T of the first light unit temperature2(L) it is the second light unit temperature Variable quantity, Δ ε1(L) it is the variable quantity of the first light unit strain,For the first light unit Brillouin shift temperature coefficient,For Second light unit Brillouin shift temperature coefficient,For the first light unit Brillouin shift coefficient of strain；And the first light list First Brillouin shift temperature coefficientThe second light unit Brillouin shift temperature coefficientAnd the first light unit cloth In the deep frequency displacement coefficient of strainBy testing tight tube fiber and loose tube fiber in the first light unit in the OPPC, the second light unit Obtain；The field monitoring module also includes environment temperature monitoring modular and air monitoring module；The monitoring management module includes：Variable management module, graphic monitoring module, alarm module, data memory module and power Limit management module；The monitoring management module is connected to the data analysis module through the data center module, and described Monitoring management module, data center module and data analysis module are deployed on corresponding server host；The long-range prison Control field monitoring data described in device real-time reception；The variable management module is used to manage sensing variable, linear variable, current-carrying capacity variable and controlled variable；Sensing variable takes out the maximum of any or one section from the array of sensing data, variable based on the type variable, its Dependent variable is all based on the type variable and recalculated；Linear variable be grating wavelength sensitive value, computing to temperature with Strain；Current-carrying capacity variable is shown that it is corresponding by manual edit for controlled variable by the temperature, meteorology, cable data computing inputted Value, for other variable parameters；The graphic monitoring module is used for the display in the variable management module to dependent variable and field monitoring data and prison Control；Graphic monitoring module includes two kinds of graphic display modes：The display of display and raw sensory array based on variable；Variable Mode is shown in a manner of note control, including display location, display size and background color；The display of raw sensory array, Size using color as sensed values, shown with the colored curve of a physical space trend；The alarm module receives the warning message that distributed sensor uploads, and alarm is completed by the graphic monitoring module The display of particular location；Alarm module receives BOTDA warning message, the display alarm position on the curve of physical space trend Put, in this process, the threshold value of variable is set by variable management module, and is indicated with different background colour；The authority management module is used to be managed the access right of user；The data memory module is used to store described Monitoring Data, and all variables all preserve at certain interval To database, to carry out historical analysis use；The data center module includes：Distributed Storage module and data service module；Distributed Storage module The data of some local supervising and measuring equipment tests are connected, and by the sensing data of upload, and with：Device address->Channel name->Year Month->Data type path stores；In data center module, the data that service routine of the distributed data through exploitation provides are looked into Interface is ask, connects the data analysis module；The data analysis module includes：Distributed data play back and overlap analysis mode, distributed data historical analysis module, Distributed data stability analysis module；Distributed data playback and overlap analysis mode are used for the number for inquiring about preset time period According to, and can continuously play, check data situation, there is provided single curve and Overlapping display two ways；Distributed data Historical analysis module is used for the change feelings for inquiring about a preset time period, the maximum of a predeterminated position or a default section and average value Condition；Distributed data stability analysis module is used to inquire about a period of time, the maximum of the data of all positions in time And average value, assess the stability of data in time；The long-distance monitorng device carries out big data processing, storage and comprehensive analysis, generation by comprehensive analysis management software OPPC temperature, strain, current-carrying capacity path monitoring data, and be shown by graphic monitoring module；Also include a kind of OPPC online monitoring systems for being used to monitor transmission line of electricity running status is used to monitor transmission line of electricity fortune The OPPC on-line monitoring methods of row state, comprise the steps：S1：The circuit being made up of OPPC is set up on terminal tower between Liang Ge transformer stations, wherein a transformer substation communication machine First fibre distribution frame and local supervising and measuring equipment are set in room, the second optical fiber distributing is set in another transformer substation communication computer room Frame, the both ends of the circuit are respectively by guiding transformer substation communication computer room corresponding to optical cable introducing, and the guiding optical cable uses ADSS or ordinary optical cable with the first light unit in the OPPC and the second light unit same type with quantity optical fiber；S2：The tight tube fiber and loose tube fiber in the circuit and two guiding optical cable corresponding ports are obtained respectively；By the line Road one end and the tight tube fiber in wherein one guiding optical cable one end and loose tube fiber difference welding, and by the tight tube fiber after welding It is fixed on loose tube fiber coiling in a splice tray, and the splice tray is arranged on a terminal tower；By the circuit other end and Tight tube fiber and loose tube fiber difference welding in another guiding optical cable one end, and by the tight tube fiber and loose tube fiber after welding Coiling is fixed in another splice tray, and the splice tray is arranged on another terminal tower；Respectively the optical cable other end is guided by two Correspond into and held in first fibre distribution frame and second fibre distribution frame respectively；With jumping fiber by first optical fiber distributing Frame is connected with the local supervising and measuring equipment, with jumping fiber by into holding in tight tube fiber and Song Taoguang on second fibre distribution frame Fibre is attached, to form a monitoring circuit；The splice tray is a kind of to be resistant to good special of high pressure, insulating properties and continue Box；S3：Environment temperature monitoring modular and air monitoring module are laid on the circuit；S4：Start the field monitoring module in the local supervising and measuring equipment, fiber optic temperature in the circuit and strain are carried out real Shi Quancheng follow-on tests, and every T seconds automatic record and the temperature and strain value of one group of collection of preservation；Remember automatically every T hours Record and the environment temperature and air speed value for preserving one group of collection；S5：Field monitoring modules acquiring data delivers to long-distance monitorng device through security isolation module by telecommunication, described remote Range monitoring device obtains the line according to field measurement data, current-carrying capacity mathematics model of stable state and current-carrying capacity transient mathematical model Current-carrying capacity in road, and analyze the circuit stressing conditions；In the step S5, the current-carrying capacity mathematics model of stable state is：The current-carrying capacity transient state mathematics Model is：Wherein, I is current-carrying capacity, QcFor heat loss through convection power, QrFor heat loss through radiation work( Rate, QsFor solar radiation Endothermic power, R (tc) it is that conductive line surfaces temperature is tcWhen conductor AC resistance, m is The quality of unit length wire, CpFor the specific heat capacity of wire.
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| CN106289571A (en) * | 2016-07-22 | 2017-01-04 | 舒渝燕 | A kind of power distribution cabinet high temperature warning system |
| CN106289572A (en) * | 2016-11-03 | 2017-01-04 | 南京派光信息技术有限公司 | Power supply trailing cable overheating based on distributed optical fiber temperature measuring monitoring method and system |
| CN109238318A (en) * | 2017-07-11 | 2019-01-18 | 中光华研电子科技有限公司 | A kind of multi-parameter integrated monitoring system of transmission line of electricity based on distributing optical fiber sensing |
| CN108072816A (en) * | 2017-12-25 | 2018-05-25 | 安徽博达通信工程监理有限责任公司 | A kind of Cable fault examination communication system |
| CN109084818A (en) * | 2018-09-12 | 2018-12-25 | 中复碳芯电缆科技有限公司 | The compound carbon-fibre wire running temperature stress monitoring system of optical fiber and its monitoring method |
| CN109459830A (en) * | 2018-12-19 | 2019-03-12 | 武汉理工大学 | The encapsulating structure of distributed fiber grating vibrating sensor |
| CN111637994B (en) * | 2020-05-27 | 2021-08-03 | 南京大学 | Distributed optical fiber sensing device, system and method for measuring stress of power transmission cable |
| CN112345128B (en) * | 2020-09-22 | 2022-09-02 | 国家电网有限公司 | Mechanical force monitoring and analyzing method for ground wire of overhead transmission line |
| CN112887017B (en) * | 2021-01-21 | 2022-04-12 | 国家电网有限公司 | Positioning method and positioning system for optical cable connecting tower |
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