CN110443973A - A kind of powerline ice-covering status early warning method, apparatus and system - Google Patents
A kind of powerline ice-covering status early warning method, apparatus and system Download PDFInfo
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Abstract
The invention discloses a kind of powerline ice-covering status early warning method, apparatus and systems, it is related to electric power monitoring technical field, the optical measurement for the distributed ice coating state that the method is carried out based on distributed icing on-Line Monitor Device along the sensing carrier of current transmission line of electricity, the method includes the steps: S1, according to trending early warning model parameter analysis of key risks and assumptions, icing trending early warning is carried out to current powerline ice-covering situation；S2, according to real-time early warning mechanism and the icing accounting being calculated based on the key risk factor, icing real-time early warning is carried out to current powerline ice-covering situation, the embodiment of the present invention, which can be realized, with high accuracy carries out early warning to the icing situation of transmission line of electricity, route potential danger can be found in time, embody " perspective " of ice-coating pre-warning.
Description
Technical field
The present invention relates to electric power monitoring technical field, especially relate to a kind of powerline ice-covering status early warning method,
Apparatus and system.
Summary of the invention
It is the process become slowly that icing, which causes disaster, is the synthesis result of various factors coupling effect, including temperature, humidity, wind
The meteorological factors such as speed, wind direction, the geographical environments such as height above sea level, condensation level, topography and geomorphology factor and line alignment, conducting wire suspension
Highly, the line parameter circuit values factor such as conductor rigidity, diameter of wire, load current and electric field, therefore the formulation of early warning mechanism is also more
The result of aspect comprehensive descision.
Currently, external mainly studied powerline ice-covering, and obtained by foundation sight ice station, installation on-line monitoring system
Many achievements.China is in recent years also fast-developing transmission line of electricity on-line monitoring technique, for example, Central China Power Grid, south electric network
Early warning system is monitored on-line etc. icing has had been established.However the relationship only between research monitoring quantity and failure, assess icing pair
The harm of the comprehensive states such as permanent way machine and electric property, can just give full play to its safely instruction effect, therefore major universities and colleges with
And grid company all Efforts To Develops optimize early warning mechanism, to make up the deficiency of the external factor such as monitoring, improve its standard
True property.But the icing situation of its used on-line monitoring system monitoring being equipped at monitoring terminal, and general route is continuous
Prolong tens kms, shaft tower span gap is larger, and span is bigger, and load is heavier, actually can not all shaft towers or larger
Span shaft tower all installs monitoring terminal, and the icing feelings of the transmission line of electricity within the scope of this are then represented with the monitoring result at this
Condition, accuracy has dropped to a certain degree again from this point of view.
In view of this, it is necessary to provide a kind of powerline ice-covering status early warning methods, to solve the above problems.
Summary of the invention
In order to solve problems in the prior art, the present invention provides a kind of powerline ice-covering status early warning method, apparatus
And system, have the features such as easy to operate, accuracy is higher, can find route potential danger in time, embody ice-coating pre-warning
" perspective ".
The present invention can be achieved through the following technical solutions:
In a first aspect, providing a kind of powerline ice-covering status early warning method, the method is based on distributed icing and exists
The optical measurement for the distributed ice coating state that line monitoring device is carried out along the sensing carrier of current transmission line of electricity, the method packet
Include step:
S1 covers current powerline ice-covering situation according to trending early warning model parameter analysis of key risks and assumptions
Ice trending early warning；
S2, according to real-time early warning mechanism and the icing accounting being calculated based on the key risk factor, to current defeated
Electric line icing situation carries out icing real-time early warning.
Further, the key risk factor includes temperature, humidity, the statistics maximum wind velocity in preset time, statistics
Mean wind speed and the corresponding wind direction of statistics maximum wind velocity.
Further, the step S1 further comprises:
When the temperature is in preset temperature range, the humidity is in default humidity range, 3 grades of starting becomes
Gesture early warning, and export the corresponding information warning of 3 grades of trending early warnings；
When 3 grades of trending early warnings startings, and the statistics maximum wind velocity is greater than default maximum wind velocity, the statistical average wind
When speed is greater than default mean wind speed, start 2 grades of trending early warnings, and export the corresponding information warning of 2 grades of trending early warnings；
When 2 grades of trending early warnings startings, and the corresponding wind direction of the statistics maximum wind velocity and route angle exceed predetermined angle
When range, start 1 grade of trending early warning, and exports the information warning that 1 grade of trending early warning corresponds to.
Further, the key risk factor further includes equivalent ice covering thickness, and the icing accounting is that the equivalence covers
Ratio between ice thickness and route Design ice thickness, the step S2 further comprises:
When the icing accounting is in the first default ratio range, start 3 grades of icing real-time early warning grades, and export
The corresponding information warning of 3 grades of icing real-time early warning grade；
When the icing accounting is in the second default ratio range, start 2 grades of icing real-time early warning grades, and export
The corresponding information warning of 2 grades of icing real-time early warning grade；
It is preset in ratio range when the icing accounting is in third, starts 1 grade of icing real-time early warning grade, and export
The corresponding information warning of 1 grade of icing real-time early warning grade.
Second aspect provides a kind of powerline ice-covering status early warning device, the powerline ice-covering status early warning
Device is communicatively coupled with distributed icing on-Line Monitor Device, and the distribution icing on-Line Monitor Device is worked as to edge
The sensing carrier of preceding transmission line of electricity carries out the optical measurement of distributed ice coating state, comprising:
Icing trending early warning module, for being transmitted electricity to current according to trending early warning model parameter analysis of key risks and assumptions
Transmission line icing situation carries out icing trending early warning；And
Icing real-time early warning module, for being calculated according to real-time early warning mechanism and based on the key risk factor
Icing accounting, to current powerline ice-covering situation carry out icing real-time early warning.
Further, the key risk factor includes temperature, humidity, the statistics maximum wind velocity in preset time, statistics
Mean wind speed and the corresponding wind direction of statistics maximum wind velocity.
Further, the icing trending early warning module is specifically used for:
When the temperature is in preset temperature range, the humidity is in default humidity range, 3 grades of starting becomes
Gesture early warning, and export the corresponding information warning of 3 grades of trending early warnings；
When 3 grades of trending early warnings startings, and the statistics maximum wind velocity is greater than default maximum wind velocity, the statistical average wind
When speed is greater than default mean wind speed, start 2 grades of trending early warnings, and export the corresponding information warning of 2 grades of trending early warnings；
When 2 grades of trending early warnings startings, and the corresponding wind direction of the statistics maximum wind velocity and route angle exceed predetermined angle
When range, start 1 grade of trending early warning, and exports the information warning that 1 grade of trending early warning corresponds to.
Further, the key risk factor further includes equivalent ice covering thickness, and the icing accounting is that the equivalence covers
Ratio between ice thickness and route Design ice thickness, the icing real-time early warning module are specifically used for:
When the icing accounting is in the first default ratio range, start 3 grades of icing real-time early warning grades, and export
The corresponding information warning of 3 grades of icing real-time early warning grade；
When the icing accounting is in the second default ratio range, start 2 grades of icing real-time early warning grades, and export
The corresponding information warning of 2 grades of icing real-time early warning grade；
It is preset in ratio range when the icing accounting is in third, starts 1 grade of icing real-time early warning grade, and export
The corresponding information warning of 1 grade of icing real-time early warning grade.
The third aspect provides a kind of powerline ice-covering status early warning system, the system comprises:
Distributed icing on-Line Monitor Device, the optical measurement to the distributed ice coating state along sensing carrier；And
It is being communicatively coupled with the distributed icing on-Line Monitor Device, defeated as described in any in second aspect
Electric line ice coating state prior-warning device.
Further, the sensing carrier is optical cable.
The present invention provides a kind of powerline ice-covering status early warning method, apparatus and systems, have following beneficial effect
Fruit: join in conjunction with numerical value trend of the key risk factor in future time period of trending early warning model, and according to trending early warning model
The parameter threshold of number setting, divided rank trending early warning layer by layer the case where control icing, are realized to current powerline ice-covering
Situation carries out icing trending early warning, and is accounted for according to real-time early warning mechanism and the icing being calculated based on the key risk factor
Than, icing real-time early warning is carried out to current powerline ice-covering situation, real-time tracking understands, and all protection are carried out in time to be prepared,
Double early warning mechanisms are realized, also, accuracy that is easy to operate and carrying out early warning to the icing situation of transmission line of electricity is higher, it can
Discovery route potential danger in time, embodies " perspective " of ice-coating pre-warning.
Detailed description of the invention
Attached drawing 1 is a kind of powerline ice-covering status early warning method flow diagram provided in an embodiment of the present invention；
Attached drawing 2 is powerline ice-covering trending early warning mechanism flow chart provided in an embodiment of the present invention；
Attached drawing 3 is powerline ice-covering real-time early warning mechanism flow chart provided in an embodiment of the present invention；
Attached drawing 4 is a kind of powerline ice-covering status early warning device block diagram provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only this
Invention a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment one
A kind of powerline ice-covering status early warning method provided in an embodiment of the present invention, method are based on distributed icing and exist
The optical measurement for the distributed ice coating state that line monitoring device is carried out along the sensing carrier of current transmission line of electricity, wherein sensing carries
Body can be optical cable, and in practical applications, sensing carrier can be multiple using transmission line of electricity optical power grounded waveguide OPGW or optical fiber
Close conducting wire OPPC.Referring to Fig.1 shown in, method comprising steps of
Step S1, according to trending early warning model parameter analysis of key risks and assumptions, to current powerline ice-covering situation into
Row icing trending early warning.
In the specific implementation process, the key risk factor include temperature, humidity, the statistics maximum wind velocity in preset time,
Statistical average wind speed and the corresponding wind direction of statistics maximum wind velocity, wherein preset time can be set according to actual needs,
Such as preset time is set as 15min, i.e., the key risk factor include temperature, humidity, 15min statistics maximum wind velocity,
15min statistical average wind speed and the corresponding wind direction of 15min statistics maximum wind velocity, the embodiment of the present invention is to specific preset time
It is not limited.
Wherein, the key risk factor can be using analytic hierarchy process (AHP) from weather forecast and on-Line Monitor Device to distribution
It is extracted in the optical measurement of formula ice coating state.
Specifically, refining the key risk factor, step are as follows: establish hierarchy Model → building using analytic hierarchy process (AHP)
Judgment matrix → hierarchical ranking → consistency check, specific implementation process are as described below:
1) according to domestic and international existing powerline ice-covering Study on influencing factors achievement, hierarchy Model, such as table are established
Shown in 1.
1 transmission line icing risks and assumptions of table
2) development of judgment matrix compares same layer factor two-by-two, is denoted as judgment matrix M:
Where it is determined that rule is as shown in table 2.For example, working as PijWhen=1, indicate that risks and assumptions i and j is of equal importance.
2 dicision rules of table
The judgment matrix structure of analytic hierarchy process (AHP) is derived from expert to relative importance institute between each risks and assumptions in each layer
The judgement of work.By certain scene expert group, Yun Jian company marking mode, weight meteorologic factor > environmental factor > route ginseng is assigned
Number, then second layer A, B, C constitutes judgment matrix are as follows:
Meteorologic factor lower layer of A1, A2, A3, A4 are determining by expert group, judgment matrix are as follows:
3) hierarchical ranking calculates characteristic root and feature weight vector for judgment matrix M.Steps are as follows for calculating:
MW=λmaxW (2)
A. each column vector of M is done into normalization first:
B. then to WijIt sums by row:
C. by W'iNormalization:
W=(W1, W2..., Wn)TAs approximation characteristic weight vectors；
D. the approximation of Maximum characteristic root is sought using brief calculation method:
According to above-mentioned steps, the feature vector and characteristic root for obtaining judgment matrix M1, M2 are respectively as follows: W(1)=(0.49,
0.312,0.19 8)T, λmax(1)=3.054W(2)=(0.45,0.26,0.17,0.12)T, λmax(2)=4.071
4) consistency desired result
The coincident indicator of analytic hierarchy process (AHP):
Consistency ratio:
As CR < 0.1, the inconsistency degree of M is in permissible range.Wherein RI is random index:
3 random index of table
As can be seen that two matrixes meet coherence request from calculated result.Can similarly calculate environmental factor and
The characteristic value and feature weight vector of the judgment matrix of line parameter circuit value, it is contemplated that environmental factor and line parameter circuit value are relevant
Risks and assumptions data acquisition degree-of-difficulty factor is larger and real-time is restricted, and is unable to satisfy the real-time of Early-warning Model and easily grasps
The property made condition, therefore detailed analysis is not done herein.Weight coefficient size that binding hierarchy analytic approach is analyzed and data acquisition
Real-time and difficulty choose the key risk factor that A1, A2, A3, A4 in meteorologic factor are Early-warning Model.
Wherein, weather forecast is used to indicate the weather forecast in future time period, which can be from meteorological observatory
It is directly obtained, the embodiment of the present invention is not limited the specific acquisition modes of weather forecast.
Above-mentioned give extracts the key risk factor using analytic hierarchy process (AHP), it is to be understood that those skilled in the art
The key risk factor can also be obtained using other methods in the prior art, the present invention is not especially limited this.
In the embodiment of the present invention, by extracting the key risk factor of Early-warning Model using analytic hierarchy process (AHP), therefore can
Numerical value trend of the key risk factor for influencing powerline ice-covering state in future time period is grasped, and then can be ensured
The subsequent accuracy that early warning is carried out to powerline ice-covering state.
Specifically, according to trending early warning model parameter analysis of key risks and assumptions, to current powerline ice-covering situation into
Row icing trending early warning, the process may include:
When temperature is in preset temperature range, humidity is in default humidity range, start 3 grades of trending early warnings, and
Export the corresponding information warning of 3 grades of trending early warnings；When 3 grades of trending early warnings startings, and counts maximum wind velocity and be greater than default most strong wind
When speed, statistical average wind speed are greater than default mean wind speed, start 2 grades of trending early warnings, and exports the corresponding police of 2 grades of trending early warnings
Show information；When 2 grades of trending early warnings startings, and the corresponding wind direction of maximum wind velocity and route angle are counted beyond predetermined angle range
When, start 1 grade of trending early warning, and export the information warning that 1 grade of trending early warning corresponds to.
Wherein, the key risk factor and its corresponding threshold value can be set such as the following table 4 institute in trending early warning model parameter
Show:
The setting of 4 trending early warning model parameter of table
Further, it is illustrated in conjunction with step S1 of the Fig. 2 to the embodiment of the present invention, as shown in Fig. 2: working as temperature
Lower than 0 DEG C and it is higher than -5 DEG C, humidity starts 3 grades of trending early warnings higher than 85%, and exports the corresponding warning letter of 3 grades of trending early warnings
Breath reminds operation maintenance personnel to note: this span has reached the meteorological condition for easily forming icing, and real-time tracking meteorology is needed to change feelings
Condition to avoid icing or icing sustainable growth；When 3 grades of trending early warnings startings, and 15min counts maximum wind velocity > 4m/s,
15min statistical average wind speed > 1m/s then starts 2 grades of trending early warnings, and exports the corresponding information warning of 2 grades of trending early warnings, mentions
Awake operation maintenance personnel easily forms icing at this time or icing increases quickly, close observation is needed, in real time note that carrying out when necessary
Site inspection determines true environment situation and ice coating state at this；When 2 grades of trending early warnings startings, and 15min counts wind
To with route angle > 45 degree, then starts 1 grade of early warning, and export the corresponding information warning of 1 grade of trending early warning, remind operation maintenance personnel
Carry out site inspection, determine the actual conditions of icing, applies for DC ice melting mode when necessary, in order to avoid cause broken string or tower etc.
Major accident.
In the embodiment of the present invention, by according to trending early warning model parameter analysis of key risks and assumptions, to current power transmission line
Road icing situation carries out icing trending early warning, and grade classification carries out icing trending early warning, layer by layer the case where control icing, to not
The powerline ice-covering situation for carrying out a period of time carries out icing trending early warning, and exports warning corresponding with grade trending early warning
Information realizes discovery route potential danger in time, and operation maintenance personnel is reminded to carry out respective treated purpose in time.
Step S2, according to real-time early warning mechanism and the icing accounting being calculated based on the key risk factor, to current defeated
Electric line icing situation carries out icing real-time early warning.
Wherein, the key risk factor further includes equivalent ice covering thickness, and icing accounting is that equivalent ice covering thickness and route design
Ratio between ice thickness, for ease of description, icing accounting is denoted as λ.
Specifically, the process may include:
When icing accounting is in the first default ratio range, start 3 grades of icing real-time early warning grades, and export 3 grades and cover
The corresponding information warning of ice real-time early warning grade；When icing accounting is in the second default ratio range, start 2 grades of icing realities
When warning grade, and export the corresponding information warning of 2 grades of icing real-time early warning grades；When icing accounting is in the default ratio of third
It is worth in range, starts 1 grade of icing real-time early warning grade, and exports the corresponding information warning of 1 grade of icing real-time early warning grade.
Further, it is illustrated in conjunction with step S2 of the Fig. 3 to the embodiment of the present invention, as shown in Fig. 3: as 0.4 < λ
< 0.5, start 3 grades of icing real-time early warning grades, and export the corresponding information warning of 3 grades of icing real-time early warning grades, reminds fortune
Dimension personnel note: the grounded-line entirety icing situation of this span is in slight ice coating state, pays attention to real time monitoring；When 0.5 < λ <
0.6, start 2 grades of icing real-time early warning grades, and export the corresponding information warning of 2 grades of icing real-time early warning grades, reminds O&M
Personnel note: the grounded-line entirety icing situation of this span is in moderate ice coating state, needs site inspection, grasps scene in detail
Situation, generation of preventing accident；As λ > 0.6, start 1 grade of icing real-time early warning grade, and exports 1 grade of icing real-time early warning grade
Corresponding information warning, remind operation maintenance personnel to note: the grounded-line entirety icing situation of this span is in severe ice coating state,
Need to be taken emergency measures (DC ice melting etc.) in time.
In the embodiment of the present invention, by according to real-time early warning mechanism and the icing being calculated based on the key risk factor
Accounting, to current powerline ice-covering situation carry out icing real-time early warning, grade classification carry out icing real-time early warning, layer by layer
The case where controlling icing carries out icing trending early warning to current powerline ice-covering situation, and exports corresponding with grade trending early warning
Information warning, realize discovery route potential danger in time, and operation maintenance personnel reminded to carry out respective treated purpose in time.
It should be noted that in practical applications, the execution sequence of step S1 and step S2, which can be, first carries out step
S1, then step S2 is executed, it is also possible to first carry out step S2, then execute step S1, the embodiment of the present invention does not limit this
It is fixed.
The present invention provides a kind of powerline ice-covering status early warning methods, and this method is by utilizing trending early warning model
Numerical value trend of the key risk factor in future time period, and the parameter threshold set according to trending early warning model parameter draws
Graduation trending early warning layer by layer the case where control icing, is realized pre- to current powerline ice-covering situation progress icing trend
It is alert, and according to real-time early warning mechanism and based on the icing accounting that the key risk factor is calculated, current transmission line of electricity is covered
Ice condition condition carries out icing real-time early warning, and real-time tracking understands, and carries out all protection in time and prepares, and realizes double early warning mechanisms, and
And it is easy to operate and higher to the accuracy of the icing situation of transmission line of electricity progress early warning, the potential danger of route can be found in time
Danger, embodies " perspective " of ice-coating pre-warning.
Embodiment two
Referring to shown in Fig. 4, a kind of powerline ice-covering status early warning device provided in an embodiment of the present invention, transmission line of electricity
Ice coating state prior-warning device is communicatively coupled with distributed icing on-Line Monitor Device, distributed icing on-Line Monitor Device
The optical measurement of distributed ice coating state is carried out to the sensing carrier along current transmission line of electricity, powerline ice-covering state is pre-
Alarm device includes:
Icing trending early warning module 41 is used for according to trending early warning model parameter analysis of key risks and assumptions, to current defeated
Electric line icing situation carries out icing trending early warning；And
Icing real-time early warning module 42, for what is be calculated according to real-time early warning mechanism and based on the key risk factor
Icing accounting carries out icing real-time early warning to current powerline ice-covering situation.
Further, the key risk factor includes temperature, humidity, the statistics maximum wind velocity in preset time, statistical average
Wind speed and the corresponding wind direction of statistics maximum wind velocity.
Further, icing trending early warning module 41 is specifically used for:
When temperature is in preset temperature range, humidity is in default humidity range, start 3 grades of trending early warnings, and
Export the corresponding information warning of 3 grades of trending early warnings；
When 3 grades of trending early warnings startings, and counts maximum wind velocity and be greater than default maximum wind velocity, statistical average wind speed greater than in advance
If when mean wind speed, starting 2 grades of trending early warnings, and export the corresponding information warning of 2 grades of trending early warnings；
When 2 grades of trending early warnings startings, and the corresponding wind direction of maximum wind velocity and route angle are counted beyond predetermined angle range
When, start 1 grade of trending early warning, and export the information warning that 1 grade of trending early warning corresponds to.
Further, the key risk factor further includes equivalent ice covering thickness, and icing accounting is equivalent ice covering thickness and route
Ratio between Design ice thickness, icing real-time early warning module 42 are specifically used for:
When icing accounting is in the first default ratio range, start 3 grades of icing real-time early warning grades, and export 3 grades and cover
The corresponding information warning of ice real-time early warning grade；
When icing accounting is in the second default ratio range, start 2 grades of icing real-time early warning grades, and export 2 grades and cover
The corresponding information warning of ice real-time early warning grade；
It is preset in ratio range when icing accounting is in third, starts 1 grade of icing real-time early warning grade, and export 1 grade and cover
The corresponding information warning of ice real-time early warning grade.
The present invention provides a kind of powerline ice-covering status early warning devices, and the device is by utilizing trending early warning model
Numerical value trend of the key risk factor in future time period, and the parameter threshold set according to trending early warning model parameter draws
Graduation trending early warning layer by layer the case where control icing, is realized pre- to current powerline ice-covering situation progress icing trend
It is alert, and according to real-time early warning mechanism and based on the icing accounting that the key risk factor is calculated, current transmission line of electricity is covered
Ice condition condition carries out icing real-time early warning, and real-time tracking understands, and carries out all protection in time and prepares, and realizes double early warning mechanisms, and
And it is easy to operate and higher to the accuracy of the icing situation of transmission line of electricity progress early warning, the potential danger of route can be found in time
Danger, embodies " perspective " of ice-coating pre-warning.
Embodiment three
A kind of powerline ice-covering status early warning system provided in an embodiment of the present invention, system include:
Distributed icing on-Line Monitor Device carries out distributed icing shape to the sensing carrier along current transmission line of electricity
The optical measurement of state；And be communicatively coupled with distributed icing on-Line Monitor Device, as described in any in embodiment two
Powerline ice-covering status early warning device.
Further, sensing carrier is optical cable.In practical applications, sensing carrier can be multiple using transmission line of electricity optical fiber
Close ground wire OPGW or optical fiber composite wire OPPC.
Those skilled in the art can be understood that, for convenience and simplicity of description, the device of foregoing description,
The specific work process of module, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
All the above alternatives can form alternative embodiment of the invention using any combination, herein no longer
It repeats one by one.In several embodiments provided by the present invention, it should be understood that disclosed method and apparatus can pass through
Other modes are realized.For example, the apparatus embodiments described above are merely exemplary, for example, the unit is drawn
Point, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.
It should be noted that in the description of the present invention, term " first ", " second ", " third " etc. are only used for description mesh
, it is not understood to indicate or imply relative importance.In addition, in the description of the present invention, it is unless otherwise indicated, " more
It is a " it is meant that two or more.
It should be understood that powerline ice-covering status early warning device provided by the above embodiment is being executed based on transmission of electricity
It, only the example of the division of the above functional modules, can be in practical application when transmission line icing status early warning method
Above-mentioned function distribution is completed by different functional modules as needed, i.e., is divided into the internal structure of device different
Functional module, to complete all or part of the functions described above.In addition, powerline ice-covering provided by the above embodiment
Status early warning device and powerline ice-covering status early warning embodiment of the method belong to same design, and specific implementation process is detailed in
Embodiment of the method, which is not described herein again.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of powerline ice-covering status early warning method, which is characterized in that the method is based on distributed icing on-line monitoring
The optical measurement for the distributed ice coating state that device is carried out along the sensing carrier of current transmission line of electricity, the method includes the steps:
S1 carries out icing to current powerline ice-covering situation and becomes according to trending early warning model parameter analysis of key risks and assumptions
Gesture early warning；
S2, according to real-time early warning mechanism and the icing accounting being calculated based on the key risk factor, to current power transmission line
Road icing situation carries out icing real-time early warning.
2. the method according to claim 1, wherein when the key risk factor includes temperature, humidity, presets
Interior statistics maximum wind velocity, statistical average wind speed and the corresponding wind direction of statistics maximum wind velocity.
3. according to the method described in claim 2, it is characterized in that, the step S1 further comprises:
When the temperature is in preset temperature range, the humidity is in default humidity range, it is pre- to start 3 grades of trend
It is alert, and export the corresponding information warning of 3 grades of trending early warnings；
When 3 grades of trending early warnings startings, and the statistics maximum wind velocity is greater than default maximum wind velocity, the statistical average wind speed is greater than
When default mean wind speed, start 2 grades of trending early warnings, and export the corresponding information warning of 2 grades of trending early warnings；
When 2 grades of trending early warnings startings, and the corresponding wind direction of the statistics maximum wind velocity and route angle exceed predetermined angle range
When, start 1 grade of trending early warning, and export the information warning that 1 grade of trending early warning corresponds to.
4. according to the method described in claim 2, it is characterized in that, the key risk factor further includes equivalent ice covering thickness,
The icing accounting is the ratio between the equivalent ice covering thickness and route Design ice thickness, and the step S2 further comprises:
When the icing accounting is in the first default ratio range, start 3 grades of icing real-time early warning grades, and export described 3
The corresponding information warning of grade icing real-time early warning grade；
When the icing accounting is in the second default ratio range, start 2 grades of icing real-time early warning grades, and export described 2
The corresponding information warning of grade icing real-time early warning grade；
It is preset in ratio range when the icing accounting is in third, starts 1 grade of icing real-time early warning grade, and export described 1
The corresponding information warning of grade icing real-time early warning grade.
5. a kind of powerline ice-covering status early warning device, which is characterized in that the powerline ice-covering status early warning device with
Distributed icing on-Line Monitor Device is communicatively coupled, and the distribution icing on-Line Monitor Device is to along current power transmission line
The sensing carrier on road carries out the optical measurement of distributed ice coating state, comprising:
Icing trending early warning module is used for according to trending early warning model parameter analysis of key risks and assumptions, to current transmission line of electricity
Icing situation carries out icing trending early warning；And
Icing real-time early warning module, for according to real-time early warning mechanism and the icing being calculated based on the key risk factor
Accounting carries out icing real-time early warning to current powerline ice-covering situation.
6. powerline ice-covering status early warning device according to claim 5, which is characterized in that the key risk factor
Including statistics maximum wind velocity, statistical average wind speed and the corresponding wind direction of statistics maximum wind velocity in temperature, humidity, preset time.
7. powerline ice-covering status early warning device according to claim 6, which is characterized in that the icing trending early warning
Module is specifically used for:
When the temperature is in preset temperature range, the humidity is in default humidity range, it is pre- to start 3 grades of trend
It is alert, and export the corresponding information warning of 3 grades of trending early warnings；
When 3 grades of trending early warnings startings, and the statistics maximum wind velocity is greater than default maximum wind velocity, the statistical average wind speed is greater than
When default mean wind speed, start 2 grades of trending early warnings, and export the corresponding information warning of 2 grades of trending early warnings；
When 2 grades of trending early warnings startings, and the corresponding wind direction of the statistics maximum wind velocity and route angle exceed predetermined angle range
When, start 1 grade of trending early warning, and export the information warning that 1 grade of trending early warning corresponds to.
8. powerline ice-covering status early warning device according to claim 6, which is characterized in that the key risk factor
It further include equivalent ice covering thickness, the icing accounting is the ratio between the equivalent ice covering thickness and route Design ice thickness, institute
Icing real-time early warning module is stated to be specifically used for:
When the icing accounting is in the first default ratio range, start 3 grades of icing real-time early warning grades, and export described 3
The corresponding information warning of grade icing real-time early warning grade；
When the icing accounting is in the second default ratio range, start 2 grades of icing real-time early warning grades, and export described 2
The corresponding information warning of grade icing real-time early warning grade；
It is preset in ratio range when the icing accounting is in third, starts 1 grade of icing real-time early warning grade, and export described 1
The corresponding information warning of grade icing real-time early warning grade.
9. a kind of powerline ice-covering status early warning system, which is characterized in that the system comprises:
Distributed icing on-Line Monitor Device, the optics of the distributed ice coating state to the sensing carrier along current transmission line of electricity
Measurement；And
It is being communicatively coupled with the distributed icing on-Line Monitor Device, defeated as described in claim 5 to 8 any one
Electric line ice coating state prior-warning device.
10. powerline ice-covering status early warning system according to claim 9, which is characterized in that the sensing carrier is
Optical cable.
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Application publication date: 20191112 |