CN104331566B - 500kV AC linear angle tower Electric Field Simulation Systems - Google Patents
500kV AC linear angle tower Electric Field Simulation Systems Download PDFInfo
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- CN104331566B CN104331566B CN201410631937.9A CN201410631937A CN104331566B CN 104331566 B CN104331566 B CN 104331566B CN 201410631937 A CN201410631937 A CN 201410631937A CN 104331566 B CN104331566 B CN 104331566B
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Abstract
The invention discloses a kind of 500kV AC linears angle tower Electric Field Simulation System, including the connected corner pole of order and insulator, gold utensil model library successively, lead model sets up unit, finite element solving unit and post-processing unit；Corner pole and insulator, gold utensil model library are the component library by just being formed after straight-line angle tower model modeling;Lead model, which sets up unit, is used to realize that the parametrization of wire to be set;Finite element solving unit is by calling ANSYS simulation softwares to carry out finite element analysis；Post-processing unit is used to handle finite element solving system-computed result, obtains the physical quantity for needing to show；Expenses of environmental protection in terms of present invention reduction 500kV work transmission lines electric field, during parametric modeling, self-defined assignment can be carried out to parametrization structure, so as to calculate under same operating, transmission tower Electric Field Distribution situation under different structure or arrangement, the maximum field strength for improvement wire and gold utensil surface provides data foundation.
Description
Technical field
The present invention relates to the construction field of extra-high voltage alternating current-direct current power transmission engineering, more particularly to 500kV AC linear angle towers
Electric Field Simulation System.
Background technology
Since twentieth century, to meet growing need for electricity, power network scale, capacity expand rapidly, defeated to become
Electrical engineering is also rapidly being implemented.At the same time city size is drastically expanded, therefore 500kV EHV transmissions engineering is existing across cities and towns
As happening occasionally.Electromagnetic environment problem causes increasing concern.The ecological effect of electromagnetic field, electromagnetic field is to human lives
Required communication, broadcast, TV, etc. influence, all answer top-priority factor as project of transmitting and converting electricity.
Straight-line angle tower is got a lot of applications in 500kV projects of transmitting and converting electricity.At present both at home and abroad to high voltage power transmission and transforming work
The research of journey power frequency electric field focuses mostly in transmission line of electricity, and content is fairly perfect, but to the distribution of the power frequency electric field of power transmission line shaft tower
Research is considerably less, at present the only analysis of a small amount of Electric Field Distribution to tangent tower, and safety when being overhauled with research staff is prevented
Shield.
Due to factors such as landform, transmission line of electricity can not possibly be always straight line, and some places need to turn round, when turn angle exists
Straight-line angle tower straight-line angle tower is just used when within 5 degree, angle greatly then needs to use strained angled tower again；Due to angle tower two
Side is asymmetric, therefore is different from tangent tower when calculating, that is, is needed to both sides while modeling, loading solution, calculate complicated.
The content of the invention
Instant invention overcomes the deficiencies in the prior art, the present invention provides a kind of 500kV AC linears angle tower Electric Field Simulation
System, Tower Model is set up according to actual straight-line angle tower, forms corner pole and insulator, gold utensil model library, and parametrization is led
Line model, angle tower Electric Field Distribution, and visualization processing finite element solving structure, model importing side are obtained by finite element solving
Just, Electric Field Distribution is calculated simple.
500kV AC linear angle tower Electric Field Simulation Systems, including order connected corner pole and insulator, gold successively
Has model library, lead model sets up unit, finite element solving unit and post-processing unit；
Corner pole and insulator, gold utensil model library are the element by just being formed after straight-line angle tower model modeling
Storehouse.Actual parameter according to 500kV AC linear angle towers sets up the model of various straight corner shaft towers, the configuration of each model
The insulator chain and gold utensil of different model, are formed a component library after various modelings, and the component library is to turn
Angular pole tower and insulator, gold utensil model library.These models just can be easily imported during emulation shaft tower power frequency electric field, are calculated each
From Electric Field Distribution.In order to realize the convenience of modularization and operation, the actual typical work transmission line of this software reference passes through
Pendency chain equation parameter sets up the flexible structures such as wire and wire jumper, realizes the modeling that becomes more meticulous, more meets with actual conditions.
The parameters such as component size can easily be changed when building model, so as to obtain the electric field of straight-line angle tower under different situations
As a result.
Lead model, which sets up unit, is used to realize that the parametrization of wire to be set, and user only need to setting by Parametric Language
Put, you can the convenient various parameters for changing wire, so that quickly right in the case of qualitative, quantitative research wire parameter change
The influence of whole shaft tower Electric Field Distribution.
The parameter of wire includes wire and returns number, splitting parameter, the centre coordinate matrix of each phase conductor, and splitting parameter includes dividing
Split number, division spacing, division initial phase angle and wire radius.For double-circuit line, wire arrangements mode has six kinds of situations to be available for choosing
Select, different phase sequences are arranged in different border loading environments.To wire parameter setting default value, parameter is not being changed
What situation was calculated is the Electric Field Distribution under default models.
Finite element solving unit passes through finite element solving electric field by calling ANSYS simulation softwares to carry out finite element analysis
By force, real physical system is simulated using mathematical approach method, is gone to approach with the unknown quantity of limited quantity unlimited unknown
The real system of amount；
Finite element solving electric-field intensity specifically includes following steps：
（1）Import straight-line angle tower model；
（2）Wire parameter, definition unit type and cell attribute are set；
（3）Distinguish allocation unit attribute for each entity；
（4）Physical grid is divided, sets sizing grid to adapt to the required precision of different parts electric field；
（5）The loading of boundary condition, to the real and imaginary parts of cell node on-load voltage.
（6）The physical quantity on each unit each node is calculated, the electric-field intensity distribution of straight-line angle tower is obtained.
Post-processing unit is used to handle finite element solving unit result of calculation, obtains the physical quantity for needing to show,
Make result visualization, graphical representation straight-line angle tower electric field.
Post-processing unit shows the electric-field intensity cloud atlas point around maximum field intensity in zoning, straight-line angle tower
Cloth, is exported and preserved in the form of data list, the electric field intensity value on display observation path, and is compared with standard, is sentenced
Whether the electric-field intensity around disconnected straight-line angle tower exceeds threshold value.
Cloud atlas distribution can intuitively show the size distribution of field around research object, and color, which is more deeply felt, shows current potential more
Height, can clearly reflect the Electric Field Distribution on observation path, maximum can be read tentatively in cloud atlas, and mark with country
Quasi- limit value compares, and display directly perceived exceeds threshold electric field strength scope.
Compare and prior art, the present invention has advantages below：
The present invention is using 500kV transmission lines of electricity straight-line angle tower as research object, to 500kV transmission line of electricity Typical linear shaft towers
It is modeled, subdivision, loading and the solution of computation model is completed using finite element software, obtains the typical bar of 500kV transmission lines of electricity
Tower becomes more meticulous the Electric Field Distribution situation of model, convenient to the typical shaft tower electric Field Optimization of 500kV transmission lines of electricity, line arrangement, is
500kV work transmission lines are built and operation provides electromagnetic compatibility related reference frame, reduction 500kV work transmission line electricity
Expenses of environmental protection in terms of, with important engineering application value and meaning.
During parametric modeling of the present invention, self-defined assignment can be carried out to parametrization structure, parametrization structure is mainly
Wire and wire jumper, so as to calculate under same operating, the transmission tower Electric Field Distribution situation under different structure or arrangement,
Maximum field strength for improvement wire and gold utensil surface provides data foundation.
Brief description of the drawings
Fig. 1 500kV AC linears angle tower Electric Field Simulation System schematic diagrames of the present invention；
Fig. 2 is finite element solving electric-field intensity steps flow chart schematic diagram.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in figure 1,500kV AC linear angle tower Electric Field Simulation Systems, including the connected corner pole of order successively
And insulator, gold utensil model library, lead model sets up unit, finite element solving unit and post-processing unit.
Corner pole and insulator, gold utensil model library are the element by just being formed after straight-line angle tower model modeling
Storehouse.Actual parameter according to 500kV AC linear angle towers sets up the model of various straight corner shaft towers, the configuration of each model
The insulator chain and gold utensil of different model, are formed a component library after various modelings, and the component library is to turn
Angular pole tower and insulator, gold utensil model library.These models just can be easily imported during emulation shaft tower power frequency electric field, are calculated each
From Electric Field Distribution.In order to realize the convenience of modularization and operation, the actual typical work transmission line of this software reference passes through
Pendency chain equation parameter sets up the flexible structures such as wire and wire jumper, realizes the modeling that becomes more meticulous, more meets with actual conditions.
The parameters such as component size can easily be changed when building model, so as to obtain the electric field of straight-line angle tower under different situations
As a result.
Lead model, which sets up unit, is used to realize that the parametrization of wire to be set, and user only need to setting by Parametric Language
Put, you can the convenient various parameters for changing wire, so that quickly right in the case of qualitative, quantitative research wire parameter change
The influence of whole shaft tower Electric Field Distribution.
The parameter of wire includes wire and returns number, splitting parameter, the centre coordinate matrix of each phase conductor, and splitting parameter includes dividing
Split number, division spacing, division initial phase angle and wire radius.For double-circuit line, wire arrangements mode has six kinds of situations to be available for choosing
Select, different phase sequences are arranged in different border loading environments.To wire parameter setting default value, parameter is not being changed
What situation was calculated is the Electric Field Distribution under default models.
The following is the setting example of the present embodiment conductor part parameter.
（1）Circuit_n feeder numbers, single loop is 1, and double loop is 2
（2）* dim, l_xp, the x coordinate vector of each wires of phase_n and ground wire, 6 elements
* dim, l_yp, the y-coordinate vector of each wires of phase_n and ground wire
* dim, l_zp, the z coordinate vector of each wires of phase_n and ground wire
（3）R_line wire radius
The wire division number of n_mult=4 is 4
Phase_mult=45 divide just 45 degree of angle
It is 450mm that space_mult=450, which divide spacing,
（4）The coordinate of wire center point
* vfill, l_xp (1), data, the x coordinate vector of wire center point
* vfill, l_yp (1), data, the y-coordinate vector of wire center point
* vfill, l_zp (1), data, the z coordinate vector of wire center point
（5）Double loop phase sequence arrangement
Xiangxu1==1 double-circuit line ABC-ABC arrangement
Xiangxu1==2 double-circuit line ABC-ACB arrangement
Xiangxu1==3 double-circuit line ABC-BAC arrangement
Xiangxu1==4 double-circuit line ABC-BCA arrangement
Xiangxu1==5 double-circuit line ABC-CAB arrangement
Xiangxu1==6 double-circuit line ABC-CBA arrangement.
Finite element solving unit passes through finite element solving electric field by calling ANSYS simulation softwares to carry out finite element analysis
By force, real physical system is simulated using mathematical approach method, is gone to approach with the unknown quantity of limited quantity unlimited unknown
The real system of amount；
As shown in Fig. 2 finite element solving electric-field intensity specifically includes following steps：
（1）Import straight-line angle tower model；
（2）Wire parameter, definition unit type and cell attribute are set；
（3）Distinguish allocation unit attribute for each entity；
（4）Physical grid is divided, sets sizing grid to adapt to the required precision of different parts electric field；
（5）The loading of boundary condition, to the real and imaginary parts of cell node on-load voltage.
（6）The physical quantity on each unit each node is calculated, the electric-field intensity distribution of straight-line angle tower is obtained.
Post-processing unit is used to handle finite element solving unit result of calculation, obtains the physical quantity for needing to show,
Make result visualization, graphical representation straight-line angle tower electric field.
Post-processing unit shows the electric-field intensity cloud atlas point around maximum field intensity in zoning, straight-line angle tower
Cloth, is exported and preserved in the form of data list, the electric field intensity value on display observation path, and is compared with standard, is sentenced
Whether the electric-field intensity around disconnected straight-line angle tower exceeds threshold value.
Cloud atlas distribution can intuitively show the size distribution of field around research object, and color, which is more deeply felt, shows current potential more
Height, can clearly reflect the Electric Field Distribution on observation path, maximum can be read tentatively in cloud atlas, and mark with country
Quasi- limit value compares, and display directly perceived exceeds threshold electric field strength scope.
It the above is only the preferred embodiment of the present invention, it should be pointed out that：Come for those skilled in the art
Say, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (1)
1.500kV AC linear angle tower Electric Field Simulation Systems, it is characterised in that including the connected corner pole of order successively and
Insulator, gold utensil model library, lead model set up unit, finite element solving unit and post-processing unit；
The corner pole and insulator, gold utensil model library are the element by just being formed after straight-line angle tower model modeling
Storehouse：Actual parameter according to 500kV AC linear angle towers sets up the model of straight corner shaft tower, and the model configuration is by difference
The insulator chain and gold utensil of model, form a component library after being modeled by the angle tower, the component library is corner
Shaft tower and insulator, gold utensil model library;
The lead model, which sets up unit, is used to realize that the parametrization of wire to be set;The parameter of wire includes wire and returns number, division
The centre coordinate matrix of parameter, wire;
The finite element solving unit passes through finite element solving electric field by calling ANSYS simulation softwares to carry out finite element analysis
By force；
The post-processing unit is used to handle finite element solving unit result of calculation, obtains the physical quantity for needing to show,
Graphical representation straight-line angle tower electric field；
Post-processing unit shows the electric-field intensity cloud atlas distribution around maximum field intensity in zoning, straight-line angle tower,
Exported and preserved in the form of data list, the electric field intensity value on display observation path, and be compared with standard, judge straight
Whether the electric-field intensity around line angle tower exceeds threshold value；
The finite element solving electric-field intensity specifically includes following steps：
（1）Import straight-line angle tower model；
（2）Wire parameter, definition unit type and cell attribute are set；
（3）Distinguish allocation unit attribute for each entity；
（4）Physical grid is divided, sets sizing grid to adapt to the required precision of different parts electric field；
（5）The loading of boundary condition, to the real and imaginary parts of cell node on-load voltage；
（6）The physical quantity on each unit each node is calculated, the electric-field intensity distribution of straight-line angle tower is obtained；
The splitting parameter includes division number, division spacing, division initial phase angle and wire radius.
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| CN106055387B (en) * | 2016-06-22 | 2019-06-18 | 华南理工大学 | Steel-cored aluminium strand radial temperature emulation mode based on ANSYS APDL Yu ANSYS CFX |
| CN107784142B (en) * | 2016-08-31 | 2021-10-19 | 株洲中车时代半导体有限公司 | Thermal simulation method of semiconductor power component |
| CN109921410A (en) * | 2017-12-12 | 2019-06-21 | 中电普瑞科技有限公司 | The method for arranging and device of a kind of series compensation device and peripheral equipment |
| CN111028637B (en) * | 2019-12-27 | 2022-01-25 | 广东电网有限责任公司培训与评价中心 | Live-line work training method and system based on electric field visualization |
Citations (1)
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| CN103455686A (en) * | 2013-09-17 | 2013-12-18 | 重庆大学 | Modeling method of finite element model for overhead power transmission tower-line coupling system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103455686A (en) * | 2013-09-17 | 2013-12-18 | 重庆大学 | Modeling method of finite element model for overhead power transmission tower-line coupling system |
Non-Patent Citations (3)
| Title |
|---|
| 330kV线路复合绝缘子电位和电场分布的有限元计算;袁小娴等;《电瓷避雷器》;20061231(第4期);正文第0-2节 * |
| 500kV转弯塔跳线悬垂绝缘子串电场分布的有限元分析;贺林等;《电气技术》;20091231(第5期);全文 * |
| 750kV输电线路耐张塔绕跳间隔棒结构优化;谢天喜等;《高电压技术》;20110731;第37卷(第7期);全文 * |
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Address after: 100761 West Chang'an Avenue, Beijing, No. 86, No. Co-patentee after: JIANGSU ELECTRIC POWER Co. Patentee after: State Grid Corporation of China Co-patentee after: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. MAINTENANCE BRANCH Address before: 100761 West Chang'an Avenue, Beijing, No. 86, No. Co-patentee before: JIANGSU ELECTRIC POWER Co. Patentee before: State Grid Corporation of China Co-patentee before: MAINTENANCE DIVISION OF STATE GRID JIANGSU ELECTRIC POWER Co. Address after: 100761 West Chang'an Avenue, Beijing, No. 86, No. Co-patentee after: JIANGSU ELECTRIC POWER Co. Patentee after: State Grid Corporation of China Co-patentee after: MAINTENANCE DIVISION OF STATE GRID JIANGSU ELECTRIC POWER Co. Address before: 100761 West Chang'an Avenue, Beijing, No. 86, No. Co-patentee before: JIANGSU ELECTRIC POWER Co. Patentee before: State Grid Corporation of China Co-patentee before: JIANGSU ELECTRIC POWER COMPANY MAINTENANCE BRANCH |