CN110188500A - Tower falling down and ice accretion broken string risk analysis method and system - Google Patents
Tower falling down and ice accretion broken string risk analysis method and system Download PDFInfo
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- CN110188500A CN110188500A CN201910491074.2A CN201910491074A CN110188500A CN 110188500 A CN110188500 A CN 110188500A CN 201910491074 A CN201910491074 A CN 201910491074A CN 110188500 A CN110188500 A CN 110188500A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000012502 risk assessment Methods 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 51
- 230000005611 electricity Effects 0.000 claims abstract description 42
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 238000000576 coating method Methods 0.000 claims abstract description 10
- 238000004590 computer program Methods 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 3
- 238000004870 electrical engineering Methods 0.000 abstract description 2
- 238000004364 calculation method Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010128 melt processing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/06—Power analysis or power optimisation
Abstract
The present invention relates to electrical engineering technical fields, disclose a kind of tower falling down and ice accretion broken string risk analysis method and system, to realize the estimated calculating of tower falling down and ice accretion line-outage contingency, scientific guidance transmission line de-icing disposing task is easy to implement；The method of the present invention includes: to obtain the current ice coating state information of transmission line of electricity to be analyzed, and predict that icing of the transmission line of electricity to be analyzed in the following setting time increases information；Increase information according to the ice coating state information and icing of transmission line of electricity to be analyzed and obtains the ice covering thickness of transmission line of electricity；Ice covering thickness is compared with the thickness threshold value of setting, if ice covering thickness is greater than thickness threshold value, the then uneven icing stress value of longitudinal direction and horizontal unbalanced tensile force and transmission line of electricity of the computing electric power line under ice covering thickness, if unbalanced tensile force is more than the receiving threshold value of transmission line of electricity and uneven stress value is more than to be sentenced by force threshold and know transmission line of electricity in the presence of the risk of falling tower.
Description
Technical field
The present invention relates to electrical engineering technical field more particularly to a kind of tower falling down and ice accretion broken string risk analysis sides
Method and system.
Background technique
Icing is one of the important natural calamity for threatening transmission line safety operation.Certain serious a wide range of length in history
The ice damage process of time, 700,000 complementary basis of the transmission line of electricity broken string of falling tower, leads to large-area power-cuts, seriously affects social production and normally transports
Turn.Accurately to analyze influence of the icing disaster to transmission line of electricity, the icing line-outage contingency of falling tower is prevented, needs to carry out power transmission line
The analytical calculation of the road icing broken string of falling tower risk.Currently, existing analytical calculation focuses primarily upon the current icing shape of transmission line of electricity
The broken string of falling tower of state calculates, and calculating is mostly ideal analogue simulation condition, it is difficult to effectively instruct live icing disaster disposition.
Therefore, being calculated as one and urgently to be solved asking for tower falling down and ice accretion line-outage contingency how is realized
Topic.
Summary of the invention
It is defeated to realize it is an object of that present invention to provide a kind of tower falling down and ice accretion broken string risk analysis method and system
The estimated calculating of the electric line icing line-outage contingency of falling tower, scientific guidance transmission line de-icing disposing task are easy to implement.
To achieve the above object, the present invention provides a kind of tower falling down and ice accretion broken string risk analysis methods, including
Following steps:
S1: obtaining the current ice coating state information of transmission line of electricity to be analyzed, and predicts the transmission line of electricity to be analyzed not
The icing come in setting time increases information；
S2: information is increased according to the ice coating state information of the transmission line of electricity to be analyzed and the icing and obtains transmission line of electricity
Ice covering thickness；
S3: the ice covering thickness is compared with the thickness threshold value of setting, if the ice covering thickness is greater than the thickness
Threshold value then enters step S4；
S4: longitudinal direction and horizontal unbalanced tensile force and transmission line of electricity of the computing electric power line under the ice covering thickness
Uneven icing stress value, if the unbalanced tensile force is more than the receiving threshold value of the transmission line of electricity and the uneven stress value
Transmission line of electricity is known in the presence of the risk of falling tower more than sentencing by force threshold.
Preferably, the ice coating state information includes ice covering thickness, icing time and icing position.
Preferably, the setting time is three days.
Preferably, the range of the thickness threshold value is the 50%-70% that transmission line of electricity can actually bear ice covering thickness.
Preferably, longitudinal direction and horizontal unbalanced tensile force of the computing electric power line under the ice covering thickness pass through transmission of electricity
Route tower-cable architecture finite element stimulation model is calculated.
Preferably, the temperature, humidity and precipitation in icing growth information region according to locating for transmission line of electricity are true
It is fixed.
As a general technical idea, the present invention also provides a kind of broken string risk analysis of tower falling down and ice accretion, packets
The computer program that includes memory, processor and storage on a memory and can run on a processor, the processor are held
The step of realizing the above method when row computer program.
The invention has the following advantages:
The present invention provides a kind of tower falling down and ice accretion broken string risk analysis method and system, current by transmission line of electricity
Icing situation and the following setting time in icing increase the ice covering thickness of computing electric power line, by the ice covering thickness with it is defeated
The practical endurance of electric line, which is compared, judges whether there is the risk of falling tower, is able to achieve tower falling down and ice accretion line-outage contingency
Estimated calculating, scientific guidance transmission line de-icing disposing task is easy to implement.
Below with reference to accompanying drawings, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the tower falling down and ice accretion broken string risk analysis method flow chart of the preferred embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of tower falling down and ice accretion broken string risk analysis method, including following step
It is rapid:
S1: the current ice coating state information of transmission line of electricity to be analyzed is obtained, and predicts that transmission line of electricity to be analyzed will be set in future
Icing in fixing time increases information；
S2: information is increased according to the ice coating state information and icing of transmission line of electricity to be analyzed and obtains the icing thickness of transmission line of electricity
Degree；
S3: ice covering thickness is compared with the thickness threshold value of setting, if ice covering thickness is greater than thickness threshold value, enters step
Rapid S4；
S4: the unevenness of longitudinal direction and horizontal unbalanced tensile force and transmission line of electricity of the computing electric power line under ice covering thickness
Even icing stress value, if unbalanced tensile force is more than the receiving threshold value of transmission line of electricity and uneven stress value is more than to be sentenced by force threshold
Know transmission line of electricity and there is the risk of falling tower.
Above-mentioned tower falling down and ice accretion breaks risk analysis method, by the current icing situation of transmission line of electricity and
Icing in the following setting time increases the ice covering thickness of computing electric power line, by actually holding for the ice covering thickness and transmission line of electricity
Stress, which is compared, judges whether there is the risk of falling tower, is able to achieve the estimated calculating of tower falling down and ice accretion line-outage contingency, section
Instruct transmission line de-icing disposing task, easy to implement.
In the present embodiment, ice coating state information includes ice covering thickness, icing time and icing position.
As the present embodiment preferred embodiment, setting time is three days.
As the present embodiment preferred embodiment, the range of thickness threshold value is that transmission line of electricity can actually bear ice covering thickness
50%-70%.
As the present embodiment preferred embodiment, longitudinal direction and level of the computing electric power line under ice covering thickness are uneven
Tension is calculated by power transmission line column-cable architecture finite element stimulation model.
It should be noted that in the present embodiment, icing increase the temperature in information region according to locating for transmission line of electricity, humidity,
And precipitation determines.
Specifically, by taking certain city as an example, firstly, monitoring that this area 110kV faces upward collinear ice covering thickness is 12mm.And pass through meter
The icing situation that calculation obtains this area will continue to increase, and within 3 days futures, that is, be up to 20mm, set ice covering thickness threshold
Value is 15mm.That is, the ice covering thickness of this area has been more than thickness threshold value, further pass through power transmission line column-cable architecture finite element
Simulation Calculation, it is longitudinal larger with horizontal unbalanced tensile force and uneven that analysis 1 day 110kV of future faces upward collinear electric power pylon
Stress value is more than there is the broken string of falling tower risk by force threshold, and ice-melt processing should be unfolded in time.
Embodiment 2
With above method embodiment correspondingly, the present embodiment provides a kind of tower falling down and ice accretion broken string risks point
Analysis including memory, processor and stores the computer program that can be run on a memory and on a processor, the processor
The step of realizing the above method when executing computer program.
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 invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
- The risk analysis method 1. a kind of tower falling down and ice accretion breaks, which comprises the following steps:S1: obtaining the current ice coating state information of transmission line of electricity to be analyzed, and predicts that the transmission line of electricity to be analyzed will be set in future Icing in fixing time increases information；S2: information is increased according to the ice coating state information of the transmission line of electricity to be analyzed and the icing and obtains covering for transmission line of electricity Ice thickness；S3: the ice covering thickness is compared with the thickness threshold value of setting, if the ice covering thickness is greater than the thickness threshold value, Then enter step S4；S4: the unevenness of longitudinal direction and horizontal unbalanced tensile force and transmission line of electricity of the computing electric power line under the ice covering thickness Even icing stress value, if the unbalanced tensile force is more than the receiving threshold value of the transmission line of electricity and the uneven stress value is more than By force threshold, sentences and know transmission line of electricity in the presence of the risk of falling tower.
- The risk analysis method 2. tower falling down and ice accretion according to claim 1 breaks, which is characterized in that the icing Status information includes ice covering thickness, icing time and icing position.
- The risk analysis method 3. tower falling down and ice accretion according to claim 1 breaks, which is characterized in that the setting Time is three days.
- The risk analysis method 4. tower falling down and ice accretion according to claim 1 breaks, which is characterized in that the thickness The range of threshold value is the 50%-70% that transmission line of electricity can actually bear ice covering thickness.
- The risk analysis method 5. tower falling down and ice accretion according to claim 1 breaks, which is characterized in that the calculating Longitudinal direction and horizontal unbalanced tensile force of the transmission line of electricity under the ice covering thickness pass through power transmission line column-cable architecture finite element simulation Computation model is calculated.
- The risk analysis method 6. tower falling down and ice accretion according to claim 1 breaks, which is characterized in that the icing The temperature, humidity and precipitation for increasing information region according to locating for transmission line of electricity determine.
- The risk analysis system 7. a kind of tower falling down and ice accretion breaks, including memory, processor and it is stored in memory Computer program that is upper and can running on a processor, which is characterized in that the processor executes real when the computer program The step of existing 1 to 6 any the method for the claims.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910491074.2A CN110188500A (en) | 2019-06-06 | 2019-06-06 | Tower falling down and ice accretion broken string risk analysis method and system |
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| CN201910491074.2A CN110188500A (en) | 2019-06-06 | 2019-06-06 | Tower falling down and ice accretion broken string risk analysis method and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272326A (en) * | 2020-04-02 | 2020-06-12 | 中国电力工程顾问集团西北电力设计院有限公司 | Method for solving single-end under-ice-cover unbalanced tension of continuous overhead transmission line |
| CN112580863A (en) * | 2020-12-08 | 2021-03-30 | 国网湖南省电力有限公司 | Power grid intensive transmission channel line queue direct-current ice melting sequencing optimization method |
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| CN102353400A (en) * | 2011-07-18 | 2012-02-15 | 航天科工深圳（集团）有限公司 | Method and system for monitoring icing condition of overhead power transmission line |
| CN103376083A (en) * | 2012-04-23 | 2013-10-30 | 贵州电力试验研究院 | Power transmission line icing intelligent on-line monitoring system |
| CN106781229A (en) * | 2016-11-15 | 2017-05-31 | 国网四川省电力公司电力科学研究院 | Coated by ice of overhead power transmission line method for early warning |
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2019
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| CN101667319A (en) * | 2008-09-04 | 2010-03-10 | 华东电力试验研究院有限公司 | Method for giving wire damage alarm when lead wire is coated by ice |
| CN102353400A (en) * | 2011-07-18 | 2012-02-15 | 航天科工深圳（集团）有限公司 | Method and system for monitoring icing condition of overhead power transmission line |
| CN103376083A (en) * | 2012-04-23 | 2013-10-30 | 贵州电力试验研究院 | Power transmission line icing intelligent on-line monitoring system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111272326A (en) * | 2020-04-02 | 2020-06-12 | 中国电力工程顾问集团西北电力设计院有限公司 | Method for solving single-end under-ice-cover unbalanced tension of continuous overhead transmission line |
| CN111272326B (en) * | 2020-04-02 | 2021-06-22 | 中国电力工程顾问集团西北电力设计院有限公司 | Method for solving single-end under-ice-cover unbalanced tension of continuous overhead transmission line |
| CN112580863A (en) * | 2020-12-08 | 2021-03-30 | 国网湖南省电力有限公司 | Power grid intensive transmission channel line queue direct-current ice melting sequencing optimization method |
| CN112580863B (en) * | 2020-12-08 | 2023-12-01 | 国网湖南省电力有限公司 | Direct-current deicing ordering optimization method for grid dense transmission channel line queue |
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Application publication date: 20190830 |