CN108320052A - Transmission line status prediction technique under meteorological disaster and device - Google Patents
Transmission line status prediction technique under meteorological disaster and device Download PDFInfo
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Abstract
The present invention provides transmission line status prediction technique and device under a kind of meteorological disaster, wherein this method includes：Build electric transmission line three-dimensional model and meteorological hazard model；Obtain meteorological disaster information；Based on the meteorological disaster model, the meteorological disaster information is converted into meteorological disaster model parameter；Based on the electric transmission line three-dimensional model, transmission line of electricity warning data is determined according to the meteorological disaster model parameter；The transmission line of electricity warning data is compared with preset threshold value of warning, is determined whether to carry out disaster alarm according to comparison result.The program can be promptly and accurately the risk to transmission line of electricity predict.
Description
Technical field
The present invention relates to electrical engineering technical field, more particularly to the transmission line status prediction side under a kind of meteorological disaster
Method and device.
Background technology
Overhead transmission line is the chief component of energy source configuration network, while being also that energy dispensing the most quickly leads to
Road.The groundwork of transmission line of electricity repair includes two big classes of channel management and line maintenance, and frequently moves and change then to line
Road maintenance work brings huge pressure.The reliability of transmission line of electricity is improved, the state for grasping transmission line of electricity is to improve circuit fortune
The key of row reliability and reasonable arrangement maintenance.The state for grasping transmission line of electricity needs the safety of transmission line of electricity to be predicted, special
Be not under meteorological disaster transmission line safety prediction it is particularly important.
Currently, the safety predicting method of transmission line of electricity can be predicted the risk status of transmission line of electricity entirety.But it is special at this stage
Be not weather anomaly such as, typhoon, when there is icing weather, the operation maintenance personnel of line inspection cannot be promptly and accurately at the scene
The risk to transmission line of electricity predict.
Invention content
An embodiment of the present invention provides the transmission line status prediction techniques and device under a kind of meteorological disaster, can be timely
Accurately the risk of transmission line of electricity is predicted.
Transmission line status prediction technique under the meteorological disaster includes：
Build electric transmission line three-dimensional model and meteorological hazard model；
Obtain meteorological disaster information；
Based on the meteorological disaster model, the meteorological disaster information is converted into meteorological disaster model parameter；
Based on the electric transmission line three-dimensional model, transmission line of electricity early warning number is determined according to the meteorological disaster model parameter
According to；
The transmission line of electricity warning data is compared with preset threshold value of warning, according to comparison result determine whether into
Row disaster alarm.
Transmission line status prediction meanss under the meteorological disaster include：
Model construction module, for building electric transmission line three-dimensional model and meteorological hazard model；
Meteorological disaster data obtaining module, for obtaining meteorological disaster information；
The meteorological disaster information is converted into meteorological calamity by info conversion module for being based on the meteorological disaster model
Evil model parameter；
Warning data determining module is joined for being based on the electric transmission line three-dimensional model according to the meteorological disaster model
Number determines transmission line of electricity warning data；
First comparison module, for the transmission line of electricity warning data to be compared with preset threshold value of warning, according to
Comparison result determines whether to carry out disaster alarm.
The embodiment of the present invention additionally provides a kind of computer equipment, including memory, processor and storage are on a memory
And the computer program that can be run on a processor, the processor realize side as described above when executing the computer program
Method.
The embodiment of the present invention additionally provides computer readable storage medium, and the computer-readable recording medium storage is held
The computer program of row method as described above.
In embodiments of the present invention, electric transmission line three-dimensional model that can be based on structure and meteorological hazard model, according to gas
As disaster information determines transmission line of electricity warning data, the transmission line of electricity warning data is compared with preset threshold value of warning
Compared with, according to comparison result determine whether carry out disaster alarm.Scheme can be promptly and accurately through the invention to transmission line of electricity
Risk is predicted.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the transmission line status prediction technique flow chart one under a kind of meteorological disaster provided in an embodiment of the present invention；
Fig. 2 is the transmission line status prediction technique flowchart 2 under a kind of meteorological disaster provided in an embodiment of the present invention；
Fig. 3 is a kind of basic flow chart of typhoon early warning provided in an embodiment of the present invention；
Fig. 4 is a kind of vertically insulated substring angle of wind deflection schematic diagram provided in an embodiment of the present invention；
Fig. 5 is a kind of ice-coating pre-warning flow chart provided in an embodiment of the present invention；
Fig. 6 is a kind of not contour hitch point arc sag schematic diagram provided in an embodiment of the present invention；
Fig. 7 is a kind of horizontal span and vertical span schematic diagram provided in an embodiment of the present invention；
Fig. 8 is the transmission line status prediction meanss block diagram one under a kind of meteorological disaster provided in an embodiment of the present invention；
Fig. 9 is the transmission line status prediction meanss block diagram two under a kind of meteorological disaster provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
In embodiments of the present invention, the transmission line status prediction technique under a kind of meteorological disaster is provided, such as Fig. 1 institutes
Show, this method includes：
Step 101：Build electric transmission line three-dimensional model and meteorological hazard model；
Step 102：Obtain meteorological disaster information；
Step 103：Based on the meteorological disaster model, the meteorological disaster information is converted into meteorological disaster model ginseng
Number；
Step 104：Based on the electric transmission line three-dimensional model, transmission line of electricity is determined according to the meteorological disaster model parameter
Warning data；
Step 105：The transmission line of electricity warning data is compared with preset threshold value of warning, it is true according to comparison result
It is fixed whether to carry out disaster alarm.
When it is implemented, the present invention is that (Building Information Modeling are referred to as based on Building Information Model
BIM) the electric transmission line three-dimensional model built, which is visual model of power transmission system.It makes an inspection tour first
Personnel scan patrolling power transmission lines by BIM terminals, obtain the basis of transmission line of electricity, shaft tower, conducting wire, insulator chain, attached set
It applies and the status data of surrounding enviroment, then builds electric transmission line three-dimensional model, the electric transmission line three-dimensional model of structure can wrap
It includes：Transmission line foundation threedimensional model, pole tower three-dimensional model, conducting wire threedimensional model (including stockbridge damper and conductor spacer three-dimensional mould
Type), one of the affiliated facility threedimensional model of suspension insulator threedimensional model and transmission line of electricity or multiple.Meteorological disaster mould
Type may include typhoon disaster model and/or transmission line icing hazard model；The meteorological disaster information of acquisition may include typhoon calamity
Evil information and/or transmission line icing disaster information.
When it is implemented, as shown in Fig. 2, the transmission line status prediction technique under the meteorological disaster further includes：
Step 106：When comparison result indicates that the transmission line of electricity warning data is more than preset threshold value of warning, generate pre-
Alert information；
Step 107：Based on warning information, obtain by the real time status information of the transmission line of electricity of early warning；
Step 108：The real time status information is compared with by the historic state information of the transmission line of electricity of early warning, root
It is believed that breath comparison result is determined by the transmission line of electricity of early warning with the presence or absence of damage.
When it is implemented, when the meteorological disaster model is typhoon disaster model, the meteorological disaster information is typhoon
Disaster information.The basic flow chart of typhoon early warning is as shown in Figure 3.It first passes through meteorological observatory and obtains typhoon disaster information, weather bureau carries
The typhoon disaster information of confession mainly has typhoon live state information and forecast information.Then, it (is primarily referred to as transmitting electricity from three-dimensional circuits system
Circuit threedimensional model be pole tower three-dimensional model, conducting wire threedimensional model and suspension insulator threedimensional model) in obtain affected area
Shaft tower and line information, be based on pole tower three-dimensional model, conducting wire threedimensional model and suspension insulator threedimensional model, according to described
Typhoon disaster information determines the angle of wind deflection of suspension insulator angle of wind deflection and/or wire jumper, and vertically insulated substring angle of wind deflection and wire jumper
Angle of wind deflection be all that three-dimensional circuits system can recognize that and show.Can finally obtain the vertically insulated substring caused by typhoon and
It is compared by the visual variation of wire jumper angle of wind deflection with critical angle of wind deflection, once being more than critical angle of wind deflection, is issued by pre-
Police, simultaneous selection operations staff or unmanned plane, to being scanned by the transmission line of electricity of early warning, pass through BIM terminals using BIM technology
Incessantly being wirelessly transmitted to background system by the transmission line of electricity data of early warning.It is pre- by what is obtained in real time in background system
Alert transmission line of electricity data are compared with historical data, are judged windage yaw trip risk possibility in advance, are prepared repairing in advance.Once
It was found that when accident, maintenance or defect defect elimination are carried out in time, are reduced to loss using visualized management minimum.
Here is the computational methods of the angle of wind deflection of vertically insulated substring angle of wind deflection and wire jumper.
Fig. 4 is vertically insulated substring angle of wind deflection schematic diagram, as shown in figure 4, the suspension insulator angle of wind deflection is by following public
Formula determines：
Wherein,For suspension insulator angle of wind deflection；p1For suspension insulator wind pressure, unit is N；G1It insulate for pendency
Substring gravity, unit are N；P is the horizontal wind excitation standard value perpendicular to conducting wire and ground wire direction, and unit is N/m；W1For conducting wire
From gravity, unit is N/m；LhFor the horizontal span of shaft tower, unit is m；LvFor the vertical span of shaft tower, unit is m；
Suspension insulator wind pressure p1It determines as follows：
Wherein, A1For suspension insulator wind area, unit is m2；V is the mean wind speed of typhoon, and unit is m/s；
The product of shaft tower both sides span average value, referred to as " horizontal span ", the water between shaft tower both sides electric wire minimum point (O points)
Flat distance is known as " vertical span ".
Horizontal wind excitation standard value p perpendicular to conducting wire and ground wire direction is determined as follows：
P=0.625 αwμscβcdLh(KhV)2sinθ2(3)；
Wherein, αwFor wind evil attacking lung；βcFor conducting wire and ground wire Wind Load Adjustment Coefficients；KhFor wind pressure height change
Coefficient；μscFor conducting wire and the Shape Coefficient of ground wire；Angles of the θ between wind direction and conducting wire or ground wire direction；D indicate electric discharge away from
From.
The angle of wind deflection of wire jumper determines as follows：
Wherein, η is the angle of wind deflection of wire jumper；γ4It is that conducting wire wind load ratio carries, unit is N/m.mm2；γ1For conducting wire dead weight ratio
It carries, unit is N/m.mm2；
Conducting wire wind load is than carrying γ4It determines as follows：
Wherein, αwFor wind evil attacking lung；K is electric wire Shape Coefficient；D is that wire diameter unit is mm；
Conducting wire dead weight is than carrying γ1It determines as follows：
Wherein, W0For the dead weight of conducting wire, unit is kg；G is acceleration of gravity, g=9.81N/kg；S is sectional area of wire,
Unit is mm2。
When it is implemented, when the meteorological disaster model is transmission line icing hazard model, the meteorological disaster information is
Transmission line icing disaster information.Ice-coating pre-warning flow chart is as shown in Figure 5.Obtain first transmission line icing disaster information (such as rainfall,
Wind speed etc.), then (mould is increased based on icing from three-dimensional circuits system (mainly pole tower three-dimensional model and conducting wire threedimensional model)
Type) obtain ice-snow covered area shaft tower and conducting wire parameter (ice covering thickness etc.), calculate conducting wire than carry；Conducting wire is finally calculated to answer
The load of power and shaft tower, both of which be can be transferred to background analysis with the parameter in typing three-dimensional circuits system, once it is super
Conducting wire maximum stress or pole and tower design load are crossed, early warning is issued by.Simultaneous selection operations staff or unmanned plane utilize BIM technology pair
It is scanned by the transmission pressure of early warning and shaft tower.Data are wirelessly transmitted to background system incessantly by BIM terminals.
Backstage anticipation conductor cord disconnection risk and the shaft tower risk of falling tower, prepare conducting wire ice-melt when necessary.Once it was found that accident, also can in time into
Loss, is reduced to minimum by row maintenance or defect defect elimination using visualized management.
Specific algorithm is given below：
The first step：Weather information is converted into ice covering thickness
It is a kind of icing maximum to electric system harm that different icing types, which have different icing model of growth, glaze,
When temperature is close to zero degree, what is formed when wind speed is larger is exactly glaze, and glaze density is larger, relatively transparent, can tightly apply conducting wire, adherency
Power is not easy to fall off by force, and glaze icing can seriously increase the mechanical load of conducting wire and shaft tower.The characteristics of herein for glaze icing
Have chosen the model of Chaine.
Chaine models give the relationship that conductor cross-section changes over time, shown in fundamental relation such as formula (7)：
Wherein
Wherein, SiIt changes with time for sectional area of wire；R0For wire radius；HgFor the precipitation of unit time；HvIt hangs down
The increment of water layer thickness on straight surface；W is the water content in air；VtIt is a variations per hour for wind speed suffered by conducting wire；ρWFor
The density of water.
Using Visual Studio software editings, when known rainfall and wind speed, so that it may thick with the icing for calculating conducting wire
Degree.
Second step：Wire icing is calculated than carrying by ice covering thickness
Under windy condition, the ratio of ice coating wire, which carries, various to be obtained by following：
Above in four formulas：ρ0For the density of ice, g/mm2；W0For the dead weight of conducting wire, kg/km；G is acceleration of gravity, g=
9.81N/kg；S is sectional area of wire, mm2；g1Conduct oneself with dignity than carrying for conducting wire, g2Be ice again than carry, g3For icing when wind pressure ratio carry, g4
When having wind for icing always than carrying；α is wind load span coefficient, according to the following rules value：Wind speed<20m/s takes 1；Wind speed (20-
29) m/s takes 0.85；Wind speed (30-34) m/s, takes 0.75；Wind speed>35m/s takes 0.7；K is structural shape factor of wind load, icing
When, take 1.2.
Third walks：The stress of conductor calculates
Maximum stress suffered by aerial condutor is usually at two suspension points, as shown in Figure 6.It is most likely to occur and leads at A, B
Line breaks, and the stress at A, B two can be calculated by lower two formula：
Wherein, σ0For conducting wire horizontal stress；gbIt is that circuit ratio carries；L is the horizontal distance of two suspension points；H is two suspension point height
Difference；Wherein, the g in formula (12) and (13)bIt is exactly the g in formula (11)4。
The difference in height and span of two suspension points can be shown that circuit can be by formula (8) extremely than carrying by three-dimensional circuits GIS-Geographic Information System
Formula (11) obtains, and conducting wire horizontal stress σ0Generally it is known that so two suspension point stress of aerial condutor can be obtained by upper two formula.
4th step：Tower load calculates
The calculating of the horizontal loading and vertical load of shaft tower is needed by three-dimensional geographic information system, it will be appreciated that around shaft tower
Topography and geomorphology, it is poor to obtain shaft tower height on both sides, the detailed shaft tower information such as conducting wire lowest point, in the hope of accurate shaft tower lotus
It carries, the horizontal loading of wherein shaft tower can be calculated by following formula.
P=gbSLh(14)；
In formula：P is the horizontal loading that conducting wire passes to shaft tower, and unit is N；gbIt is that circuit ratio carries, is determined by meteorological condition,
Unit is N/ (mmm2)；S is sectional area of wire, and unit is mm2；LhFor the horizontal span of shaft tower, unit is m.
Horizontal span is as shown in fig. 7, be to calculate conducting wire to pass to shaft tower horizontal loading, calculating such as following formula.
The vertical load that conducting wire passes to shaft tower is indicated with G, is calculated public its and is calculated such as following formula.
G=gbSLv(16)；
In formula：LvFor the vertical span of shaft tower, unit is m；The calculating of vertical span such as following formula.
The decision principle of sign is in above formula：On the basis of the suspension point height for calculating shaft tower used, with adjacent two bar
The suspension point height of tower is made comparisons, if adjacent shaft tower suspension point is high, takes negative sign, is calculated shaft tower suspension point height used and is then taken positive sign.
Based on same inventive concept, the transmission line status additionally provided in the embodiment of the present invention under a kind of meteorological disaster is pre-
Device is surveyed, as described in the following examples.The principle solved the problems, such as due to the transmission line status prediction meanss under meteorological disaster
It is similar to the transmission line status prediction technique under meteorological disaster, therefore the transmission line status prediction meanss under meteorological disaster
Implementation may refer to the implementation of the transmission line status prediction technique under meteorological disaster, and overlaps will not be repeated.It is following to be made
, the combination of the software and/or hardware of predetermined function may be implemented in term " unit " or " module ".Although following embodiment
Described device preferably realized with software, but the realization of the combination of hardware or software and hardware be also may be simultaneously
It is contemplated.
Fig. 8 is a kind of structure diagram of the transmission line status prediction meanss under the meteorological disaster of the embodiment of the present invention, such as
Shown in Fig. 8, including：
Model construction module 801, for building electric transmission line three-dimensional model and meteorological hazard model；
Meteorological disaster data obtaining module 802, for obtaining meteorological disaster information；
The meteorological disaster information is converted into meteorology by info conversion module 803 for being based on the meteorological disaster model
Hazard model parameter；
Warning data determining module 804, for being based on the electric transmission line three-dimensional model, according to the meteorological disaster model
Parameter determines transmission line of electricity warning data；
First comparison module 805, for the transmission line of electricity warning data to be compared with preset threshold value of warning, root
Determine whether to carry out disaster alarm according to comparison result.
The structure is illustrated below.
When it is implemented, the meteorological disaster model includes typhoon disaster model and/or transmission line icing hazard model；It is described
Meteorological disaster information includes typhoon disaster information and/or transmission line icing disaster information；
The electric transmission line three-dimensional model includes transmission line foundation threedimensional model, pole tower three-dimensional model, conducting wire three-dimensional mould
One of affiliated facility threedimensional model of type, suspension insulator threedimensional model and transmission line of electricity is multiple.
When it is implemented, the warning data determining module 804 is specifically used for：
When the meteorological disaster model is typhoon disaster model, the meteorological disaster information is typhoon disaster information, described
When electric transmission line three-dimensional model is pole tower three-dimensional model, conducting wire threedimensional model and suspension insulator threedimensional model, it is based on shaft tower
Threedimensional model, conducting wire threedimensional model and suspension insulator threedimensional model determine pendency insulation according to the typhoon disaster information
The angle of wind deflection of sub- angle of wind deflection and/or wire jumper.
The warning data determining module 804 specifically determines suspension insulator angle of wind deflection according to formula as above (1) to (6)
And/or the angle of wind deflection of wire jumper.
When it is implemented, the warning data determining module 804 is specifically used for：
When the meteorological disaster model is transmission line icing hazard model, the meteorological disaster information is believed for transmission line icing disaster
Breath when the electric transmission line three-dimensional model is pole tower three-dimensional model and conducting wire threedimensional model, is based on pole tower three-dimensional model and conducting wire
Threedimensional model determines the load of the stress of conductor and/or shaft tower according to the transmission line icing disaster information.
The warning data determining module 804 specifically determines the stress of conductor and/or shaft tower according to formula as above (7) to (17)
Load.
When it is implemented, as shown in figure 9, the transmission line status prediction meanss under the meteorological disaster further include：
Warning module 806, for indicating that the transmission line of electricity warning data is more than preset threshold value of warning when comparison result
When, generate warning information；
State information acquisition module 807 obtains and is believed by the real-time status of the transmission line of electricity of early warning for being based on warning information
Breath；
Second comparison module 808, for believing the real time status information with by the historic state of the transmission line of electricity of early warning
Breath is compared, and is determined by the transmission line of electricity of early warning with the presence or absence of damage according to information comparison result.
Based on same inventive concept, a kind of computer equipment, including memory, processing are additionally provided in the embodiment of the present invention
Device and storage on a memory and the computer program that can run on a processor, the processor execution computer program
Shi Shixian methods as described above.
Based on same inventive concept, a kind of computer readable storage medium, the meter are additionally provided in the embodiment of the present invention
Calculation machine readable storage medium storing program for executing is stored with the computer program for executing method as described above.
In conclusion the present invention is based on Building Information Model (Building Information Modeling abbreviation BIM)
Three peacekeeping four-dimension model of power transmission system of transmission line of electricity are established with meteorological disaster mathematical model, the risk management into row line will
Transmission line of electricity fortune inspection business is significantly facilitated, when weather anomaly occurs such as, when typhoon and icing, if can be to wind occurs in advance
The area or transmission line of electricity of danger send out early warning, and carry out tour operation to the prewarning area of known specific location, once event occurs
Barrier, failure is understood, will substantially reduce the harm of meteorological disaster in time.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, the present invention can be used in one or more wherein include computer usable program code computer
The computer program production implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the embodiment of the present invention can have various modifications and variations.All within the spirits and principles of the present invention, made by
Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.
Claims (16)
1. the transmission line status prediction technique under a kind of meteorological disaster, which is characterized in that including：
Build electric transmission line three-dimensional model and meteorological hazard model；
Obtain meteorological disaster information；
Based on the meteorological disaster model, the meteorological disaster information is converted into meteorological disaster model parameter；
Based on the electric transmission line three-dimensional model, transmission line of electricity warning data is determined according to the meteorological disaster model parameter；
The transmission line of electricity warning data is compared with preset threshold value of warning, is determined whether to carry out calamity according to comparison result
Evil early warning.
2. the transmission line status prediction technique under meteorological disaster as described in claim 1, which is characterized in that the meteorology calamity
Evil model includes typhoon disaster model and/or transmission line icing hazard model；The meteorological disaster information includes typhoon disaster information
And/or transmission line icing disaster information；
The electric transmission line three-dimensional model includes transmission line foundation threedimensional model, pole tower three-dimensional model, conducting wire threedimensional model, hangs
One of affiliated facility threedimensional model of vertical insulator chain threedimensional model and transmission line of electricity is multiple.
3. the transmission line status prediction technique under meteorological disaster as claimed in claim 2, which is characterized in that when the meteorology
Hazard model is typhoon disaster model, and the meteorological disaster information is typhoon disaster information, and the electric transmission line three-dimensional model is
When pole tower three-dimensional model, conducting wire threedimensional model and suspension insulator threedimensional model, it is based on the electric transmission line three-dimensional model, root
Transmission line of electricity warning data is determined according to the meteorological disaster model parameter, including：
Based on pole tower three-dimensional model, conducting wire threedimensional model and suspension insulator threedimensional model, according to the typhoon disaster information
Determine the angle of wind deflection of suspension insulator angle of wind deflection and/or wire jumper.
4. the transmission line status prediction technique under meteorological disaster as claimed in claim 3, which is characterized in that the pendency is exhausted
Edge angle of wind deflection determines as follows：
Wherein,For suspension insulator angle of wind deflection；p1For suspension insulator wind pressure, unit is N；G1For suspension insulator weight
Power, unit are N；P is the horizontal wind excitation standard value perpendicular to conducting wire and ground wire direction, and unit is N/m；W1Conduct oneself with dignity for conducting wire
Power, unit are N/m；LhFor the horizontal span of shaft tower, unit is m；LvFor the vertical span of shaft tower, unit is m；
Suspension insulator wind pressure p1It determines as follows：
Wherein, A1For suspension insulator wind area, unit is m2；V is the mean wind speed of typhoon, and unit is m/s；
Horizontal wind excitation standard value p perpendicular to conducting wire and ground wire direction is determined as follows：
P=0.625 αwμscβcdLh(KhV)2sinθ2；
Wherein, αwFor wind evil attacking lung；βcFor conducting wire and ground wire Wind Load Adjustment Coefficients；KhFor height variation coefficient of wind pressure；
μscFor conducting wire and the Shape Coefficient of ground wire；Angles of the θ between wind direction and conducting wire or ground wire direction；D indicates arcing distance.
5. the transmission line status prediction technique under meteorological disaster as claimed in claim 3, the angle of wind deflection of the wire jumper is by such as
Lower formula determines：
Wherein, η is the angle of wind deflection of wire jumper；γ4It is that conducting wire wind load ratio carries, unit is N/m.mm2；γ1Conduct oneself with dignity than carrying for conducting wire,
Unit is N/m.mm2；
Conducting wire wind load is than carrying γ4It determines as follows：
Wherein, αwFor wind evil attacking lung；K is electric wire Shape Coefficient；V is the mean wind speed of typhoon, and unit is m/s；D is to lead
Line outer diameter, unit are mm；
Conducting wire dead weight is than carrying γ1It determines as follows：
Wherein, W0For the dead weight of conducting wire, unit is kg；G is acceleration of gravity, g=9.81N/kg；S is sectional area of wire, unit
It is mm2。
6. the transmission line status prediction technique under meteorological disaster as claimed in claim 2, which is characterized in that when the meteorology
Hazard model is transmission line icing hazard model, and the meteorological disaster information is transmission line icing disaster information, the transmission line of electricity three
When dimension module is pole tower three-dimensional model and conducting wire threedimensional model, it is based on the electric transmission line three-dimensional model, according to the meteorological calamity
Evil model parameter determines transmission line of electricity warning data, including：
Based on pole tower three-dimensional model and conducting wire threedimensional model, according to the transmission line icing disaster information determine the stress of conductor and/or
The load of shaft tower.
7. the transmission line status prediction technique under meteorological disaster as claimed in claim 6, which is characterized in that the conducting wire is answered
Power determines as follows：
Wherein, σAFor the stress at conducting wire suspension point A；σBFor the stress at conducting wire suspension point B；σ0For conducting wire horizontal stress；gbFor circuit
Than carrying, unit is N/ (mmm2)；H is the difference in height at conducting wire suspension point A and at B；L be conducting wire suspension point A place with B at level away from
From.
8. the transmission line status prediction technique under meteorological disaster as claimed in claim 6, which is characterized in that the shaft tower
Load determines as follows：
P=gbSLh；G=gbSLv；
Wherein, P is the horizontal loading that conducting wire passes to shaft tower, and unit is N；G is the vertical load that conducting wire passes to shaft tower；gbFor
For circuit than carrying, unit is N/ (mmm2)；S is sectional area of wire, and unit is mm2；LhFor the horizontal span of shaft tower, unit is m；
LvFor the vertical span of shaft tower, unit is m.
9. the transmission line status prediction technique under meteorological disaster as described in claim 1, which is characterized in that further include：
When comparison result indicates that the transmission line of electricity warning data is more than preset threshold value of warning, warning information is generated；
Based on warning information, obtain by the real time status information of the transmission line of electricity of early warning；
The real time status information is compared with by the historic state information of the transmission line of electricity of early warning, knot is compared according to information
Fruit determines by the transmission line of electricity of early warning with the presence or absence of damage.
10. the transmission line status prediction meanss under a kind of meteorological disaster, which is characterized in that including：
Model construction module, for building electric transmission line three-dimensional model and meteorological hazard model；
Meteorological disaster data obtaining module, for obtaining meteorological disaster information；
The meteorological disaster information is converted into meteorological disaster mould by info conversion module for being based on the meteorological disaster model
Shape parameter；
Warning data determining module, it is true according to the meteorological disaster model parameter for being based on the electric transmission line three-dimensional model
Determine transmission line of electricity warning data；
First comparison module, for the transmission line of electricity warning data to be compared with preset threshold value of warning, according to comparing
As a result determine whether to carry out disaster alarm.
11. the transmission line status prediction meanss under meteorological disaster as claimed in claim 10, which is characterized in that the meteorology
Hazard model includes typhoon disaster model and/or transmission line icing hazard model；The meteorological disaster information includes typhoon disaster letter
Breath and/or transmission line icing disaster information；
The electric transmission line three-dimensional model includes transmission line foundation threedimensional model, pole tower three-dimensional model, conducting wire threedimensional model, hangs
One of affiliated facility threedimensional model of vertical insulator chain threedimensional model and transmission line of electricity is multiple.
12. the transmission line status prediction meanss under meteorological disaster as claimed in claim 11, which is characterized in that the early warning
Data determining module is specifically used for：
When the meteorological disaster model is typhoon disaster model, the meteorological disaster information is typhoon disaster information, the transmission of electricity
It is three-dimensional based on shaft tower when circuit threedimensional model is pole tower three-dimensional model, conducting wire threedimensional model and suspension insulator threedimensional model
Model, conducting wire threedimensional model and suspension insulator threedimensional model determine suspension insulator wind according to the typhoon disaster information
The angle of wind deflection of drift angle and/or wire jumper.
13. the transmission line status prediction meanss under meteorological disaster as claimed in claim 11, which is characterized in that the early warning
Data determining module is specifically used for：
When the meteorological disaster model is transmission line icing hazard model, the meteorological disaster information is transmission line icing disaster information,
It is three-dimensional based on pole tower three-dimensional model and conducting wire when the electric transmission line three-dimensional model is pole tower three-dimensional model and conducting wire threedimensional model
Model determines the load of the stress of conductor and/or shaft tower according to the transmission line icing disaster information.
14. the transmission line status prediction meanss under meteorological disaster as claimed in claim 10, which is characterized in that further include：
Warning module, for when comparison result indicates that the transmission line of electricity warning data is more than preset threshold value of warning, generating
Warning information；
State information acquisition module is obtained for being based on warning information by the real time status information of the transmission line of electricity of early warning；
Second comparison module, for comparing the real time status information with by the historic state information of the transmission line of electricity of early warning
Compared with according to the determination of information comparison result by the transmission line of electricity of early warning with the presence or absence of damage.
15. a kind of computer equipment, including memory, processor and storage are on a memory and the meter that can run on a processor
Calculation machine program, which is characterized in that the processor realizes any side of claim 1 to 9 when executing the computer program
Method.
16. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has perform claim
It is required that the computer program of 1 to 9 any the method.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109446289A (en) * | 2018-10-18 | 2019-03-08 | 国网山东省电力公司应急管理中心 | A kind of fine early warning system of power grid GIS based on environmental risk |
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| CN110111539A (en) * | 2019-04-08 | 2019-08-09 | 北京国信华源科技有限公司 | A kind of Internet of Things cloud method for early warning, apparatus and system merging multiple information |
| CN111444240A (en) * | 2020-03-26 | 2020-07-24 | 北京国网富达科技发展有限责任公司 | Power transmission line fault early warning method and device |
| CN112016739A (en) * | 2020-08-17 | 2020-12-01 | 国网山东省电力公司潍坊供电公司 | Fault detection method and device, electronic equipment and storage medium |
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| CN113867406A (en) * | 2021-11-10 | 2021-12-31 | 广东电网能源发展有限公司 | Unmanned aerial vehicle-based line inspection method and system, intelligent equipment and storage medium |
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