CN110298101A - A kind of transmission line of electricity wind-excited responese finite element method coupling wind system - Google Patents
A kind of transmission line of electricity wind-excited responese finite element method coupling wind system Download PDFInfo
- Publication number
- CN110298101A CN110298101A CN201910550258.1A CN201910550258A CN110298101A CN 110298101 A CN110298101 A CN 110298101A CN 201910550258 A CN201910550258 A CN 201910550258A CN 110298101 A CN110298101 A CN 110298101A
- Authority
- CN
- China
- Prior art keywords
- wind
- electricity
- transmission line
- transmission
- finite element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 121
- 230000005611 electricity Effects 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000008878 coupling Effects 0.000 title claims abstract description 12
- 238000010168 coupling process Methods 0.000 title claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 12
- 238000004458 analytical method Methods 0.000 claims abstract description 15
- 238000004364 calculation method Methods 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000004422 calculation algorithm Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000004088 simulation Methods 0.000 abstract description 4
- 230000008676 import Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
-
- 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]
Abstract
The invention discloses a kind of transmission line of electricity wind-excited responese finite element methods for coupling wind system, and this method mainly includes finite element analysis and simulation of wind two large divisions.Transmission line of electricity periphery altitude data is obtained first, is established computational domain and is carried out grid dividing, then calculates wind field numerical value；Then transmission line of electricity geometrical model and finite element model are established, and carries out initially shape being looked for calculate；Electric power pylon is finally divided into multiple tower sections, according to the wind field numerical value of each tower section, and the projected windward area of Transmission Tower-line and wind load model is combined to calculate wind load, to finite element analysis is carried out after Transmission Tower-line load, obtains wind-excited responese result.Wind-excited responese is as a result, have also obtained the relief model and wind field numerical value on transmission line of electricity periphery under the conditions of the present invention has not only obtained the finite element model and its different wind field of transmission line of electricity.The present invention is suitable for the transmission line of electricity wind-excited responese analysis under various orographic conditions, sufficiently reflects influence of the local Characteristics of Wind Field situation to transmission line of electricity.
Description
Technical field
The present invention relates to a kind of power transmission tower wind-excited responese analysis methods, in particular to couple finite element fraction using simulation of wind
Analysis is to transmission line of electricity wind-excited responese analysis method.
Background technique
Transmission line of electricity is the lifeline engineering to involve the interests of the state and the people, as the support construction of transmission line of electricity, electric power pylon
Securely and reliably directly decide the normal operation of entire transmission line of electricity and power grid.It is defeated with being growing for transmission line of electricity scale
The collapse accident of ferroelectric tower also gradually increases, and electric power pylon is easier to be destroyed especially under high wind conditions.Meanwhile in recent years
China conveys piezoelectric voltage grade and is continuously improved, and the usage amount of the electric power pylon of 500kV and above increases, to transmission of electricity iron
The safety of tower also proposed requirements at the higher level.
Natural calamity is that China's transmission line of electricity is caused to fall the first cause of tower, Deposits in Eastern Coastal China Zhejiang, Fujian, Jiangsu,
The provinces and cities such as Shanghai typhoon disaster is especially serious.The coastal region in east China is important load center, and extra high voltage line is numerous, in typhoon
During disaster, a large amount of transmission facilities often occur while stopping transport, causes large area blackout consequence will once causing cascading failure
It is hardly imaginable.
Have in a large amount of transmission line of electricity wind-excited responese research work at present and has applied finite element method, but only
Using analysis of finite element method wind-excited responese, a large amount of simplification is done to the practical wind load of transmission line of electricity, analysis result is not complete enough
Face is also not accurate enough.In Practical Project, a large amount of transmission line of electricity is established in complicated landform, practical electric power pylon institute wind-engaging lotus
Load can not carry out simplifying processing by wind pressure height coefficient in simple wind profile or relevant criterion, need to locality
Practical wind field is further analyzed under MODEL OVER COMPLEX TOPOGRAPHY, could be provided accurately and reliably for transmission line of electricity finite element analysis
Wind load.
This research obtains the general scientific research project of Zhejiang Department of Education of Shanxi Province (No:Y201840482) and the Zhejiang Province Guo Wang limited power
Company's science and technology item (5211DS17002U) is subsidized.
Summary of the invention
The purpose of the present invention is to provide a kind of power transmission tower wind-excited responese analysis methods, to solve the above technical problems.This
Inventive method can fully consider influence of the transmission line of electricity periphery landform to wind load suffered by transmission line of electricity, can more accurately
To the practical wind-excited responese of transmission line of electricity, reference can be provided for the transmission line of electricity wind loading rating under various orographic conditions.
The purpose of the present invention is achieved through the following technical solutions: a kind of transmission line of electricity charming appearance and behaviour coupling wind system
Respond finite element method, comprising the following steps:
Step 1: selection target transmission line of electricity obtains the altitude data of transmission line of electricity surrounding area, and reverse fitting obtains ground
Shape curved surface, establishes computational domain；
Step 2: grid dividing being carried out to the computational domain of foundation, obtains the wind field unstructured grid needed for wind field calculates；
Step 3: wind field numerical value is calculated according to wind field unstructured grid；
Step 4: Transmission Tower-line Fourier Series expansion technique finite element model APDL command stream is write according to transmission line of electricity actual parameter；
Step 5: by finite element model APDL command stream import ANSYS software in, obtain Transmission Tower-line geometrical model and
Finite element model, and carry out initially shape being looked for calculate under gravity laod effect；
Step 6: electric power pylon being divided into different tower sections according to different height, according to the wind field number of each tower section position
Value calculates wind load in conjunction with the projected windward area and wind load model formation of electric power pylon and transmission pressure, to each tower section
Wind load is loaded with transmission pressure, carries out wind-excited responese finite element analysis later, the transmission line of electricity charming appearance and behaviour for obtaining locating landform is rung
Answer result.
Further, in step 1: extracting transmission line of electricity periphery using Google earth or related altitude data website
The altitude data of landform carries out reverse fitting to altitude data point cloud using reverse-engineering modeling software and obtains terrain surface, and
And entire wind field computational domain is established based on terrain surface.
Further, in step 2: carrying out grid dividing using ICEM software, body fitted anisotropic mesh is set to computational domain, to retouch
Characteristics of Wind Field near the ground is stated, the control of vertical direction body fitted anisotropic mesh size is arranged 15 layers in 1m-2m, body fitted anisotropic mesh, with
Guarantee that the fine degree of wind field numerical result can satisfy the needs of Transmission Tower-line Fourier Series expansion technique FEM calculation.
Further, step 3 specifically: wind field unstructured grid is imported into flow field analysis software Fluent, setting is steady
State calculates mode；Turbulence model uses standard K-epsilon model, and turbulence model parameter is default parameters；Boundary condition
Setting are as follows: being configured face boundary is Wall, and wherein Roughness height should be according to selected transmission line of electricity, locating geographical conditions
It is configured with earth's surface situation, top surface is set as Symmetry, and selecting side on one side according to wind direction is wind field entrance Velocity-
The opposite boundary of inlet, entrance Velocity-inlet are set as wind field outlet Outflow, other boundaries are set as
Symmetry；The calculating of wind field numerical value is carried out using SIMPLE algorithm.
Further, step 4 specifically: according to the geometric parameter, component parameter and geography information of Transmission Tower-line, write defeated
The APDL command stream of ferroelectric tower, transmission pressure finite element model, wherein electric power pylon uses Beam188 beam element, transmission pressure
Use link10 bar unit.
Further, in step 6, electric power pylon is divided into according to electric power pylon different structure feature in short transverse multiple
Tower section more accurately calculates housing structure wind load, by each tower section pair to facilitate the wind load parameter for determining each tower section structure
The wind speed of position is answered to be converted into wind load, specific wind load model is as follows:
Wi=0.5 ρ μs·As·vi 2
W in above formulaiFor the wind load of corresponding tower section i, ρ is atmospheric density, μsFor corresponding tower section Shape Coefficient, AsIt is defeated for this
The projected windward area of pylon section, viThe arrives stream wind speed calculated for the wind field of tower section i.
Further, in step 6, the calculation of wind speed of transmission pressure, using the wind speed of tower section locating for transmission pressure hanging wire point,
It carries out calculating transmission pressure wind load using following wind load model:
Wc=0.5 ρ μc·Ac·sin2θ·vc 2
W in above formulacFor the wind load of transmission pressure, ρ is atmospheric density, μcFor transmission pressure Shape Coefficient, AcFor the transmission of electricity
Conducting wire projected windward area, θ are the angle of transmission pressure and wind field direction of flow, vcFor tower section where transmission pressure hanging wire point
Corresponding wind field arrives stream wind speed.
Beneficial effects of the present invention: compared with prior art, advantage is that this method uses calculating to the technology of the present invention method
Hydrodynamic methods consider the influence of route periphery orographic condition wind load practical for route, and wind field calculated result can be anti-
Practical periphery Characteristics of Wind Field is reflected, wind-excited responese Finite element analysis results are more in line with reality.
Detailed description of the invention
Fig. 1 is flow chart of the invention；
Fig. 2 is to carry out altitude data acquisition using GoodyGIS software；
Fig. 3 is to be fitted terrain surface using reverse fitting software Solidworks software Scanto3D plug-in unit；
Fig. 4 is to divide unstructured grid using ICEM software；
Fig. 5 is electric power pylon finite element model；
Fig. 6 is Transmission Tower-line Fourier Series expansion technique finite element model；
Fig. 7 is the division of power transmission tower housing structure different height tower section；
Fig. 8 is that Transmission Tower-line Fourier Series expansion technique couples wind field load；
Fig. 9 is that Transmission Tower-line deforms top view under calibrated altitude 40m/s wind friction velocity.
Specific embodiment
The specific embodiment of the invention is described in further detail below in conjunction with attached drawing.
Embodiment:
One, method and step of the invention is introduced first, specific as follows:
Step 1, for the transmission line of electricity to be analyzed, circumferentially using GoodyGIS software capture electric power pylon present position
The altitude data of shape obtains data from related geographical site, and using Solidworks Scanto3D plug-in unit to high number of passes
Strong point cloud carries out reverse fitting and obtains terrain surface, establishes computational domain side and top surface using ICEM software in ANSYS software package,
And then establish entire computational domain.
Step 2, computational domain is arranged in ICEM software relay continuous progress grid dividing using the calculating domain model of step 1
Body fitted anisotropic mesh, floor height direction size of mesh opening size are controlled in 1m-2m, to guarantee that wind field calculated result fine degree can
Meet the needs of transmission line of electricity FEM calculation, carries out unstrctured grid and unstructured grid is calculated；
Step 3, unstructured grid is imported in Fluent software, setting stable state calculates mode；Turbulence model uses
Standard K-epsilon model, model parameter are default parameters；Boundary condition setting, setting ground boundary are Wall,
Middle Roughness height should the geographical conditions according to locating for selected transmission line of electricity according to morphosequent situation be arranged, top surface setting
For Symmetry, selecting side on one side according to wind direction is entrance Velocity-inlet, and opposite boundary is set as Outflow,
He is set as Symmetry in boundary；Calculation method uses SIMPLE algorithm；It has carried out carrying out numerical value calculating after all settings.
It calculates after completing, according to transmission line of electricity geographical location in computational domain corresponding position customized longitude and latitude fixed height direction
Vertical line, utilize vertical line extract power transmission tower each position wind field calculated result；
Step 4, with reference to ANSYS APDL command stream redaction rule, for geometric parameter, the component parameter according to Transmission Tower-line
And geography information, the APDL command stream of electric power pylon, transmission pressure finite element model is write, wherein electric power pylon uses
Beam188 beam element, transmission pressure use link10 bar unit；
Step 5, APDL command stream step 4 write imports the included interface of ANSYS software, generates Transmission Tower-line geometry
Model and finite element model, and carry out Transmission Tower-line Fourier Series expansion technique initial configuration under the effect of gravity and shape is looked for calculate；
Step 6, electric power pylon is divided into different tower sections, the wind of each height tower section position of extraction according to different height
Field computation result combination power transmission tower and power transmission line projected windward area and wind load model formation calculate wind load, to each tower
Section and power transmission line load carry out the finite element analysis of transmission line of electricity wind-excited responese, obtain the transmission line of electricity wind-excited responese knot of locating landform
Fruit.
Two, it is below one and combines specific implementation case of the invention:
Step 1 establishes computational domain
The transmission line of electricity of the present embodiment selects Wenzhou transmission line of electricity, selects transmission line of electricity periphery using GoodyGIS software frame
Region download corresponding area terrain elevation data, as shown in Fig. 2, according to concerned countries geographical site obtain landform elevation
Data import altitude data in Solidworks, carry out reverse process of fitting treatment using the Scanto3D plug-in unit of Solidworks,
A cloud is inversely fitted to curved surface, as shown in figure 3, importeding into ICEM later establishes side curved surface, establishes computational domain.
Step 2, grid division
Using the calculating domain model of step 1, continue grid dividing in ICEM software, to computational domain body fitted anisotropic mesh,
Vertical direction size of mesh opening is dimensioned in 2m, and body fitted anisotropic mesh is set as 15 layers, to guarantee the fine journey of wind field calculated result
Degree can satisfy the needs of transmission line of electricity FEM calculation, carries out unstrctured grid and unstructured grid is calculated, such as Fig. 4 institute
Show.
Step 3, Numerical Simulation of Wind
Wind field unstructured grid is imported in Fluent software, setting stable state calculates mode；Turbulence model uses
Standard K-epsilon model, model parameter are default parameters；Boundary condition setting, setting ground boundary are Wall,
Middle Roughness height should the geographical conditions according to locating for selected transmission line of electricity and the setting of morphosequent condition, this example
It referring to selection parameter is 2m that expression condition, which is the woods,.Top surface is set as Symmetry, and selecting the southeast on one side according to wind direction is entrance
Velocity-inlet, boundary in the northwest are set as Outflow, other boundaries are set as Symmetry；Use SIMPLE algorithm
Carry out the calculating of wind field numerical value.
Step 4 writes ANSYS APDL Transmission Tower-line finite element model command stream
This transmission line of electricity finite element model command stream is write using Wenzhou transmission of electricity road as prototype, according on practical drawing
Power transmission tower size, the command stream of the geometrical model of each power transmission tower is first write, according to each on the practical drawing of each power transmission tower
Material that a component uses, sectional dimension situation, component direction, using in Beam188 unit setting Transmission Tower-line geometrical model
The physical attribute of each line completes writing for power transmission tower tower finite element model command stream.Use link10 unit simulation conducting wire, knot
It closes catenary formula and writes the initial finite element model command stream of the conducting wire between power transmission tower and power transmission tower.
Step 5, command stream import ANSYS and establish finite element model
As shown in Figure 5 and Figure 6, APDL command stream step 4 write imports the included interface of ANSYS software, generates defeated
Pylon line geometry model and finite element model, the wire end of fixed two sides and the column foot of power transmission tower, and gravitational load carries out
Primary Calculation completes the initial of tower wire body system and looks for shape, specifically, transmission pressure finite element model is established by catenary formula, if
Transmission pressure unit initial strain is set, FEM calculation is then carried out, calculated result initially looks for shape result.
Step 6, coupling wind field result carry out FEM calculation
Electric power pylon according to different height is divided into different tower sections as shown in fig. 7, each height that step 3 is extracted wind field
Calculated result combination power transmission tower and power transmission line front face area and wind load model formation calculate wind load, to each tower section and conducting wire
Load is as shown in figure 8, carry out the finite element analysis of structure wind-excited responese, tower line deformation in calculated result as shown in figure 9, transmit electricity
Maximum stress is 454MPa in tower member.
Above-described embodiment is used to illustrate the present invention, rather than limits the invention, in spirit of the invention and
In scope of protection of the claims, to any modifications and changes that the present invention makes, protection scope of the present invention is both fallen within.
Claims (7)
1. a kind of transmission line of electricity wind-excited responese finite element method for coupling wind system, which is characterized in that including following step
It is rapid:
Step 1: selection target transmission line of electricity obtains the altitude data of transmission line of electricity surrounding area, and reverse fitting obtains landform song
Computational domain is established in face；
Step 2: grid dividing being carried out to the computational domain of foundation, obtains the wind field unstructured grid needed for wind field calculates；
Step 3: wind field numerical value is calculated according to wind field unstructured grid；
Step 4: Transmission Tower-line Fourier Series expansion technique finite element model APDL command stream is write according to transmission line of electricity actual parameter；
Step 5: finite element model APDL command stream being imported in ANSYS software, the geometrical model of Transmission Tower-line and limited is obtained
Meta-model, and carry out initially shape being looked for calculate under gravity laod effect；
Step 6: electric power pylon being divided into different tower sections according to different height, according to the wind field numerical value of each tower section position, knot
The projected windward area and wind load model formation for closing electric power pylon and transmission pressure calculate wind load, to each tower section and transmission of electricity
Conducting wire loads wind load, carries out wind-excited responese finite element analysis later, obtains the transmission line of electricity wind-excited responese result of locating landform.
2. a kind of transmission line of electricity wind-excited responese finite element method for coupling wind system according to claim 1,
It is characterized in that, in step 1: extracting the height of transmission line of electricity periphery landform using Google earth or related altitude data website
Number of passes evidence carries out reverse fitting to altitude data point cloud using reverse-engineering modeling software and obtains terrain surface, and with landform
Entire wind field computational domain is established based on curved surface.
3. a kind of transmission line of electricity wind-excited responese finite element method for coupling wind system according to claim 1,
It is characterized in that, in step 2: grid dividing is carried out using ICEM software, body fitted anisotropic mesh is arranged to computational domain, it is near the ground to describe
Characteristics of Wind Field, the control of vertical direction body fitted anisotropic mesh size is in 1m-2m, and body fitted anisotropic mesh is arranged 15 layers, to guarantee wind field
The fine degree of numerical result can satisfy the needs of Transmission Tower-line Fourier Series expansion technique FEM calculation.
4. a kind of transmission line of electricity wind-excited responese finite element method for coupling wind system according to claim 1,
It is characterized in that, step 3 specifically: wind field unstructured grid is imported into flow field analysis software Fluent, setting stable state calculates mould
Formula；Turbulence model uses standard K-epsilon model, and turbulence model parameter is default parameters；Boundary condition setting are as follows:
Setting ground boundary is Wall, and wherein Roughness height should be according to selected transmission line of electricity, locating geographical conditions and earth's surface
Situation is configured, and top surface is set as Symmetry, and selecting side on one side according to wind direction is wind field entrance Velocity-inlet,
The opposite boundary of entrance Velocity-inlet is set as wind field outlet Outflow, other boundaries are set as Symmetry；It uses
SIMPLE algorithm carries out the calculating of wind field numerical value.
5. a kind of transmission line of electricity wind-excited responese finite element method for coupling wind system according to claim 1,
Be characterized in that, step 4 specifically: according to the geometric parameter, component parameter and geography information of Transmission Tower-line, write electric power pylon,
The APDL command stream of transmission pressure finite element model, wherein electric power pylon uses Beam188 beam element, and transmission pressure uses
Link10 bar unit.
6. a kind of transmission line of electricity wind-excited responese finite element method for coupling wind system according to claim 1,
It is characterized in that, in step 6, electric power pylon is divided into multiple tower sections according to electric power pylon different structure feature in short transverse, with
Facilitate the wind load parameter for determining each tower section structure, housing structure wind load is more accurately calculated, by each tower section corresponding position
Wind speed be converted into wind load, specific wind load model is as follows:
Wi=0.5 ρ μs·As·vi 2
W in above formulaiFor the wind load of corresponding tower section i, ρ is atmospheric density, μsFor corresponding tower section Shape Coefficient, AsFor the power transmission tower
The projected windward area of section, viThe arrives stream wind speed calculated for the wind field of tower section i.
7. a kind of transmission line of electricity wind-excited responese finite element method for coupling wind system according to claim 1,
It is characterized in that, the calculation of wind speed of transmission pressure in step 6, using the wind speed of tower section locating for transmission pressure hanging wire point, using as follows
Wind load model carries out calculating transmission pressure wind load:
Wc=0.5 ρ μc·Ac·sin2θ·vc 2
W in above formulacFor the wind load of transmission pressure, ρ is atmospheric density, μcFor transmission pressure Shape Coefficient, AcFor the transmission pressure
Projected windward area, θ are the angle of transmission pressure and wind field direction of flow, vcIt is corresponding for tower section where transmission pressure hanging wire point
Wind field arrives stream wind speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910550258.1A CN110298101A (en) | 2019-06-24 | 2019-06-24 | A kind of transmission line of electricity wind-excited responese finite element method coupling wind system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910550258.1A CN110298101A (en) | 2019-06-24 | 2019-06-24 | A kind of transmission line of electricity wind-excited responese finite element method coupling wind system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110298101A true CN110298101A (en) | 2019-10-01 |
Family
ID=68028613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910550258.1A Pending CN110298101A (en) | 2019-06-24 | 2019-06-24 | A kind of transmission line of electricity wind-excited responese finite element method coupling wind system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110298101A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111060065A (en) * | 2019-12-28 | 2020-04-24 | 汤碧红 | High-precision deformation monitoring and comprehensive utilization algorithm for communication steel tower |
| CN111125945A (en) * | 2019-11-28 | 2020-05-08 | 广东电网有限责任公司 | Method and device for evaluating ultimate wind resistance capability of power transmission line |
| CN111241731A (en) * | 2020-01-07 | 2020-06-05 | 国网浙江省电力有限公司电力科学研究院 | Transmission conductor shape finding method based on horizontal tension |
| CN111651804A (en) * | 2020-03-31 | 2020-09-11 | 重庆科技学院 | Calculation method for conventional power transmission tower and line design wind load based on inertia force method and tower line separation method considering tower line coupling influence |
| CN111651920A (en) * | 2020-06-02 | 2020-09-11 | 重庆科技学院 | Transmission analysis method for wind-induced mechanical energy of long-span power transmission tower under tower-line system |
| CN111783326A (en) * | 2020-05-28 | 2020-10-16 | 东南大学 | Wind-induced safety evaluation method for power transmission tower structure based on wind speed and dynamic response test |
| CN112036061A (en) * | 2020-08-07 | 2020-12-04 | 国网浙江省电力有限公司电力科学研究院 | Finite element modeling and dynamic response analysis method for omnibearing long and short leg tower line system |
| CN112507634A (en) * | 2020-12-03 | 2021-03-16 | 广东电网有限责任公司电力科学研究院 | Monitoring method and device for distribution network pole |
| CN113032882A (en) * | 2021-03-31 | 2021-06-25 | 广东电网有限责任公司 | Wind vibration response model generation method, device, apparatus and medium |
| CN113128093A (en) * | 2021-04-23 | 2021-07-16 | 中船第九设计研究院工程有限公司 | Conversion system of structural dynamic elastic-plastic analysis fiber model |
| CN113821897A (en) * | 2021-11-25 | 2021-12-21 | 国网江西省电力有限公司电力科学研究院 | Complex micro-terrain recognition and power transmission line windage yaw calculation method based on elevation image |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254239A (en) * | 2011-06-01 | 2011-11-23 | 福建省电力有限公司 | Power grid wind damage early warning system based on micro-landform wind field distribution and typhoon superimposed effect |
| CN104217010A (en) * | 2014-09-17 | 2014-12-17 | 国网电力科学研究院武汉南瑞有限责任公司 | Conducting wire trip-out rate calculating and evaluating method based on segmented topography |
| CN105468876A (en) * | 2015-12-28 | 2016-04-06 | 国网山东省电力公司经济技术研究院 | Real-time online evaluation method and system for safety state of power transmission tower |
| CN105740548A (en) * | 2016-02-01 | 2016-07-06 | 西安交通大学 | Power transmission line wind vibration calculation method under random wind load |
| CN107357999A (en) * | 2017-07-19 | 2017-11-17 | 云南电网有限责任公司电力科学研究院 | The method for numerical simulation and system of a kind of wind field |
| CN107833282A (en) * | 2017-11-16 | 2018-03-23 | 广东电网有限责任公司电力科学研究院 | A kind of terrain modeling and mess generation method and device |
| CN108152867A (en) * | 2017-12-29 | 2018-06-12 | 南方电网科学研究院有限责任公司 | The typhoon early warning system and method for transmission line of electricity |
-
2019
- 2019-06-24 CN CN201910550258.1A patent/CN110298101A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254239A (en) * | 2011-06-01 | 2011-11-23 | 福建省电力有限公司 | Power grid wind damage early warning system based on micro-landform wind field distribution and typhoon superimposed effect |
| CN104217010A (en) * | 2014-09-17 | 2014-12-17 | 国网电力科学研究院武汉南瑞有限责任公司 | Conducting wire trip-out rate calculating and evaluating method based on segmented topography |
| CN105468876A (en) * | 2015-12-28 | 2016-04-06 | 国网山东省电力公司经济技术研究院 | Real-time online evaluation method and system for safety state of power transmission tower |
| CN105740548A (en) * | 2016-02-01 | 2016-07-06 | 西安交通大学 | Power transmission line wind vibration calculation method under random wind load |
| CN107357999A (en) * | 2017-07-19 | 2017-11-17 | 云南电网有限责任公司电力科学研究院 | The method for numerical simulation and system of a kind of wind field |
| CN107833282A (en) * | 2017-11-16 | 2018-03-23 | 广东电网有限责任公司电力科学研究院 | A kind of terrain modeling and mess generation method and device |
| CN108152867A (en) * | 2017-12-29 | 2018-06-12 | 南方电网科学研究院有限责任公司 | The typhoon early warning system and method for transmission line of electricity |
Non-Patent Citations (2)
| Title |
|---|
| 李雯等: "F型特高压输电塔风振响应分析", 《建筑结构》 * |
| 肖明等: "桥梁风场模拟及主塔响应计算", 《湖南城市学院学报(自然科学版)》 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111125945A (en) * | 2019-11-28 | 2020-05-08 | 广东电网有限责任公司 | Method and device for evaluating ultimate wind resistance capability of power transmission line |
| CN111060065A (en) * | 2019-12-28 | 2020-04-24 | 汤碧红 | High-precision deformation monitoring and comprehensive utilization algorithm for communication steel tower |
| CN111241731A (en) * | 2020-01-07 | 2020-06-05 | 国网浙江省电力有限公司电力科学研究院 | Transmission conductor shape finding method based on horizontal tension |
| CN111241731B (en) * | 2020-01-07 | 2023-08-18 | 国网浙江省电力有限公司电力科学研究院 | Power transmission wire shape finding method based on horizontal tension |
| CN111651804A (en) * | 2020-03-31 | 2020-09-11 | 重庆科技学院 | Calculation method for conventional power transmission tower and line design wind load based on inertia force method and tower line separation method considering tower line coupling influence |
| CN111783326A (en) * | 2020-05-28 | 2020-10-16 | 东南大学 | Wind-induced safety evaluation method for power transmission tower structure based on wind speed and dynamic response test |
| CN111783326B (en) * | 2020-05-28 | 2024-03-15 | 东南大学 | Wind speed and dynamic response test-based wind-induced safety assessment method for power transmission tower structure |
| CN111651920B (en) * | 2020-06-02 | 2023-03-21 | 重庆科技学院 | Transmission analysis method for wind-induced mechanical energy of long-span power transmission tower under tower-line system |
| CN111651920A (en) * | 2020-06-02 | 2020-09-11 | 重庆科技学院 | Transmission analysis method for wind-induced mechanical energy of long-span power transmission tower under tower-line system |
| CN112036061A (en) * | 2020-08-07 | 2020-12-04 | 国网浙江省电力有限公司电力科学研究院 | Finite element modeling and dynamic response analysis method for omnibearing long and short leg tower line system |
| CN112507634A (en) * | 2020-12-03 | 2021-03-16 | 广东电网有限责任公司电力科学研究院 | Monitoring method and device for distribution network pole |
| CN112507634B (en) * | 2020-12-03 | 2022-01-25 | 广东电网有限责任公司电力科学研究院 | Monitoring method and device for distribution network pole |
| CN113032882A (en) * | 2021-03-31 | 2021-06-25 | 广东电网有限责任公司 | Wind vibration response model generation method, device, apparatus and medium |
| CN113128093B (en) * | 2021-04-23 | 2022-10-14 | 中船第九设计研究院工程有限公司 | Conversion system of structural dynamic elastic-plastic analysis fiber model |
| CN113128093A (en) * | 2021-04-23 | 2021-07-16 | 中船第九设计研究院工程有限公司 | Conversion system of structural dynamic elastic-plastic analysis fiber model |
| CN113821897B (en) * | 2021-11-25 | 2022-04-12 | 国网江西省电力有限公司电力科学研究院 | Complex micro-terrain recognition and power transmission line windage yaw calculation method based on elevation image |
| CN113821897A (en) * | 2021-11-25 | 2021-12-21 | 国网江西省电力有限公司电力科学研究院 | Complex micro-terrain recognition and power transmission line windage yaw calculation method based on elevation image |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110298101A (en) | A kind of transmission line of electricity wind-excited responese finite element method coupling wind system | |
| Xu | Wind effects on cable-supported bridges | |
| Yang et al. | New inflow boundary conditions for modelling the neutral equilibrium atmospheric boundary layer in computational wind engineering | |
| Liu et al. | LES study on the turbulent flow fields over complex terrain covered by vegetation canopy | |
| CN104331621A (en) | Wind resource computation method | |
| CN107704592A (en) | A kind of flood forecasting service construction method based on WebGIS | |
| El Kasmi et al. | Turbulence modeling of atmospheric boundary layer flow over complex terrain: a comparison of models at wind tunnel and full scale | |
| Han et al. | Multiscale simulation of wind field on a long-span bridge site in mountainous area | |
| CN110675494A (en) | Three-dimensional visualization optimization method for wind turbine position of wind power plant | |
| CN108733961A (en) | A kind of Slope Sliding Convenient stable criterion considering non-saturated region effect | |
| Li et al. | Numerical simulation study of the effect of buildings and complex terrain on the low-level winds at an airport in typhoon situation | |
| Ludwig et al. | Use of mass conservation and critical dividing streamline concepts for efficient objective analysis of winds in complex terrain | |
| Marangoz et al. | Two-dimensional modeling of flood wave propagation in residential areas after a dam break with application of diffusive and dynamic wave approaches | |
| Duong et al. | Model uncertainty in flood modelling. Case study at vu gia thu bon catchment-Vietnam | |
| Uchida | High-Resolution LES of Terrain-Induced Turbulence around Wind Turbine Generators, by Using Turbulent Inflow Boundary Conditions | |
| WO2023193823A1 (en) | Disaster classification method for landslides and collapse, and electronic device | |
| CN109977569A (en) | It is a kind of to merge multifactor MOS storm tide process disaster simulation method | |
| Pérez-Ortiz et al. | A systematic approach to undertake tidal energy resource assessment with Telemac-2D | |
| CN107491839A (en) | The power network that characteristic is waved based on history waves forecasting procedure and system | |
| CN107526910A (en) | A kind of wind field diagnostic method in nuclear facilities Accident Off-site Consequence evaluation | |
| Wang et al. | Storm surge along the Yellow River Delta under directional extreme wind conditions | |
| CN105740812B (en) | A kind of city water catchment area extracting method based on digital surface model | |
| CN107315855A (en) | Wind power plant turbulent flow optimization method and system | |
| Turel et al. | Delineation of slope profiles from digital elevation models for landslide hazard analysis | |
| JP3860138B2 (en) | Debris flow warning area generation device and program thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191001 |