CN105067916A - Ultrahigh frequency radiation characteristic simulation method and system of oilpaper capacitance bushing lifting seat - Google Patents
Ultrahigh frequency radiation characteristic simulation method and system of oilpaper capacitance bushing lifting seat Download PDFInfo
- Publication number
- CN105067916A CN105067916A CN201510448438.0A CN201510448438A CN105067916A CN 105067916 A CN105067916 A CN 105067916A CN 201510448438 A CN201510448438 A CN 201510448438A CN 105067916 A CN105067916 A CN 105067916A
- Authority
- CN
- China
- Prior art keywords
- history
- oil
- impregnated paper
- data
- seat
- 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
Landscapes
- Testing Relating To Insulation (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention provides an ultrahigh frequency radiation characteristic simulation method of an oilpaper capacitance bushing lifting seat. The method comprises that a 3D model of the oilpaper capacitance bushing lifting seat is established; grid initialization and self-application sub grid division are carried out on the 3D model based on a finite difference time domain method; a simulated excitation source is arranged; data observation points are arranged; collection data of the data observation points in the simulated electromagnetic wave time-domain spreading process within preset time is obtained; and the ultrahigh frequency radiation characteristic of the oilpaper capacitance bushing lifting seat is obtained according to analysis on the collection data. The simulation method can fit the engineering practicality, and compared with onsite test, the method is safer, and the economic and implement performance is higher. and the invention also provides a simulation system realizing the method.
Description
Technical field
Patent of the present invention relates to simulation technical field, particularly relates to the superfrequency radiation characteristic emulation mode that a kind of Oil-impregnated Paper Condenser Bushing in History raises seat.
Background technology
Sleeve pipe is a critical piece in transformer, the lead-in wire of Transformer Winding relies on outside sleeve pipe outlet box, sleeve pipe plays winding leads to the insulation of fuel tank, the fixing and effect that conveys electrical current to outside case, and it need adapt to extraneous all kinds of environmental baseline, and will have certain physical strength.Usual sleeve pipe divides pure porcelain casing tube, oil filled bushing, blown jacket, condenser-type terminal etc. multi-form.In order to make the radial and axial field intensity of 110kv and above sleeve pipe all even, its insulation system generally adopts capacitor type, namely on conducting rod, wraps many insulation courses, accompanies many aluminium foils therebetween according to field strength distribution feature, to form a string concentric cylindrical capacitor.
Usually; the outlet that Oil-impregnated Paper Condenser Bushing in History is arranged on transformer raises on seat; the metal outer wall raising seat blocks inner electromagnetic wave propagation; and the same slinger in Oil-impregnated Paper Condenser Bushing in History body can be the non-ideal channel that electromagnetic wave outside is propagated usually; therefore, paper condenser bushing lifting seat internal discharge signal is studied extremely important for the on-line checkingi of Oil-impregnated Paper Condenser Bushing in History for the impact of Oil-impregnated Paper Condenser Bushing in History.And the superfrequency radiation characteristic raising seat internal discharge signal is detected by site test mode, not only affected by environment being not easy is implemented, and easily because operation lack of standardization or negligence cause accident, the superfrequency radiation characteristic of how to test rising seat internal discharge signal becomes Oil-impregnated Paper Condenser Bushing in History and patrols and examines and detect a difficult problem.
Summary of the invention
Based on this, the invention reside in provide a kind of safer, have more exploitativeness realize detection method and the system that Oil-impregnated Paper Condenser Bushing in History raises superfrequency radiation characteristic in seat, the l-G simulation test discharged in seat is raised by setting up Oil-impregnated Paper Condenser Bushing in History, research raises route of transmission and the radiation feature collection of illustrative plates of electromagnetic wave signal after seat internal discharge, to instruct Oil-impregnated Paper Condenser Bushing in History on-line checkingi.
According to one aspect of the invention, a kind of Oil-impregnated Paper Condenser Bushing in History raises the emulation mode of the superfrequency radiation characteristic of seat, and it comprises: build Oil-impregnated Paper Condenser Bushing in History and raise seat three-dimensional model; Based on finite time-domain method of difference, grid initialization and the division of self application sub-grid are carried out to described three-dimensional model; Simulation excitation source is set; Some data observations point is set; Obtain the image data at the described data observation point place obtained in emulation electromagnetic wave time domain communication process in Preset Time; Show that described Oil-impregnated Paper Condenser Bushing in History raises the superfrequency radiation characteristic of seat according to described analysis of data collected.
Oil-impregnated Paper Condenser Bushing in History raises an analogue system for the superfrequency radiation characteristic of seat, comprising: model construction module, builds Oil-impregnated Paper Condenser Bushing in History and raises seat three-dimensional model; Simulation initialisation arranges module, comprise stress and strain model unit, simulation excitation source setting unit and data observation point setting unit, described grid initialization division unit is used for carrying out grid initialization and the division of self application sub-grid based on finite time-domain method of difference to described three-dimensional model, described simulation excitation source setting unit arranges simulation excitation source, and described data observation point setting unit is used for arranging some data observations point in rising seat inside; Data acquisition module, for recording in Preset Time the image data at the described data observation point place emulated in electromagnetic wave time domain communication process; Data analysis module, for showing that according to described analysis of data collected described Oil-impregnated Paper Condenser Bushing in History raises the superfrequency radiation characteristic of seat.
The present invention adopts the mode of emulation to analyze Oil-impregnated Paper Condenser Bushing in History and raises seat superfrequency radiation characteristic, thus the superfrequency radiation characteristic raising different local location discharge signal in seat can be known, can be used for installation and the use of the on-line measuring device of guide field Oil-impregnated Paper Condenser Bushing in History, Fitting Engineering that can be good by simulation result is actual, compare site test safer and have better economy and exploitativeness, solve Oil-impregnated Paper Condenser Bushing in History and raise patrolling and examining and detecting a difficult problem of electric discharge in seat.
Accompanying drawing explanation
The process flow diagram of the emulation mode of the superfrequency radiation characteristic of the Oil-impregnated Paper Condenser Bushing in History rising seat that Fig. 1 provides for one embodiment of the invention.
The structural schematic block diagram of the analogue system of the superfrequency radiation characteristic of the Oil-impregnated Paper Condenser Bushing in History rising seat that Fig. 2 provides for one embodiment of the invention.
Fig. 3 arranges the structural schematic block diagram of module for simulation initialisation in analogue system shown in Fig. 2.
Fig. 4 is the structural schematic block diagram of data analysis module in analogue system shown in Fig. 2.
Description of reference numerals
10 model construction module
20 simulation initialisation arrange module
21 stress and strain model unit
22 simulation excitation source setting units
23 data observation point setting units
30 data acquisition modules
40 data analysis modules
41 Poynting vector analytic units
42 electromagnetic wave signal Analysis of Spectrum unit
Embodiment
For making object of the present invention, technical scheme and advantage clearly understand, below in conjunction with the drawings and the specific embodiments, the present invention is described in further detail.Should be understood that, embodiment described herein only in order to explain the present invention, does not limit protection scope of the present invention.
Refer to Fig. 1, be the superfrequency radiation characteristic emulation mode of the Oil-impregnated Paper Condenser Bushing in History rising seat that one embodiment of the invention provides, it comprises the steps:
Build Oil-impregnated Paper Condenser Bushing in History and raise seat three-dimensional model; In the application, the Oil-impregnated Paper Condenser Bushing in History rising seat of indication comprises Oil-impregnated Paper Condenser Bushing in History body and raises seat.Build Oil-impregnated Paper Condenser Bushing in History according to Oil-impregnated Paper Condenser Bushing in History body and the physical size of rising seat with the electric parameter of its material and raise seat model, wherein, the electric parameter of material comprises conductivity and relative dielectric constant.Pro/E (Pro/Engineer) software can be selected by the simulation software building three-dimensional model, this Pro/E software is the three-dimensional software of the CAD/CAM/CAE integration under U.S. parameters technology company (PTC), can carry out the setting of the material electric parameter of each parts in XFDTD software, XFDTD software is the all-wave 3 D electromagnetic field simulation software based on Fdtd Method (FDTD) method.Concrete structure Oil-impregnated Paper Condenser Bushing in History raises in the process of seat three-dimensional model, preferred employing order from the inside to surface builds partial model successively according to the size of each parts of Oil-impregnated Paper Condenser Bushing in History, and each partial model comprises guide rod in sleeve pipe, capacitor core, end shield, end shield protective cover, mounting flange, inside pipe casing oil medium, upper insulator and lower insulator, top conservator and by army cap, voltage equalizing ball, rising seat, casing current transformer and sleeve pipe voltage transformer (VT).After putting up each partial model, the associated electrical parameters according to Materials Handbook carries out electric parameter setting respectively to each parts.Because the material electric parameter of different parts is different, after the material electric parameter of realistic model is arranged, analogue system can be convenient to according to each partial model of electric parameter difference difference.
Based on finite time-domain method of difference, grid initialization and the division of self application sub-grid are carried out to the three-dimensional model that described Oil-impregnated Paper Condenser Bushing in History raises seat; Due to Oil-impregnated Paper Condenser Bushing in History body compact conformation and physical size is larger, grid initialization and self-adaptation sub-grid divide and can ensure that each structure is by intactly subdivision, the unnecessary network that becomes more meticulous can be reduced, ensure computing velocity, computational accuracy and numerical stability.Simultaneously, because sleeve body is axially symmetric structure, all parts are all cylindrical-shaped structure, adopt its square of adaptive meshing algorithm mode in traditional FDTD emulation mode or rectangular parallelepiped grid that emulation internal memory can be made to become very large, introduce self-adaptation sub-grid dividing mode, the square of part-structure or rectangular parallelepiped grid can be further subdivided into two regular hexahedrons, thus better can approach the curved-surface structures such as cylinder, the electromagnetic characteristics of the cylindrical-shaped structure of Oil-impregnated Paper Condenser Bushing in History can be simulated better.By existing techniques in realizing, can not repeat them here building the specific implementation means that model carries out the division of self-adaptation sub-grid in simulation process.
Simulation excitation source is set, in the rising seat that the driving source of setting wants to simulate Oil-impregnated Paper Condenser Bushing in History in reality, the position of layout electric discharge and the type of shelf depreciation may occurs, to simulate the current course raising shelf depreciation in seat.Simulation excitation source is arranged in the rising seat in described three-dimensional model, wherein the form of driving source mainly can meet the electromagnetic wave needed for radiation, as used the form of ideal current source parallel resistance, current source is the electric current of shelf depreciation, and resistance two ends are radiation port.Understandably, the setting in simulation excitation source is not limited thereto, due to it is considered that raise the travel path of seat internal discharge signal in Oil-impregnated Paper Condenser Bushing in History and electromagnetic field radiation characteristic, therefore, arranging simulation excitation source can in conjunction with layout discharge signal time domain specification in oil under power-frequency voltage, the electromagnetic wave simulation excitation source of simulation diverse location, the different spoke values of different strength of discharge, the various ways of distinct pulse widths.
Some data observations point is set, obtains the image data at the described data observation point place obtained in emulation electromagnetic wave time domain communication process in Preset Time.Wherein, data observation point choose rationally, just can obtain simulation result comparatively accurately, data observation point choose so that electric field can be recorded, the time domain in magnetic field is changed to principle.In the present embodiment, the quantity of data observation point is multiple, and around the surrounding and the paper capacitor formula sleeve pipe that are arranged at Oil-impregnated Paper Condenser Bushing in History flange internal galleries, mounting flange respectively, and be distributed on isodiametric circle in geometric format.Because Oil-impregnated Paper Condenser Bushing in History is cylindrical coaxial structure, especially inside mounting flange, oil duct is concentric cylinder waveguiding structure, the Electromagnetic Wave Propagation raising seat inside can be had an impact, therefore pass through in Oil-impregnated Paper Condenser Bushing in History flange internal galleries, the surrounding near mounting flange and the surrounding's setting data observation station near Oil-impregnated Paper Condenser Bushing in History, the impact of these structures on the Electromagnetic Wave Propagation process of rising seat internal discharge signal can be specified, draw and can be used in instructing actual result.Understandably, above-mentioned data observation point also can selectively be arranged in the middle of Oil-impregnated Paper Condenser Bushing in History flange internal galleries, the surrounding of mounting flange and these positions of surrounding of paper capacitor formula sleeve pipe one or more, also can to analyze in corresponding sleeve pipe each parts to a certain extent for the impact of Electromagnetic Wave Propagation.Described image data comprises the time domain change procedure of the Electric and magnetic fields that each data observation point place obtains, comprising Electric and magnetic fields respectively at the component in orthogonal X, Y, Z tri-directions between two.In order to conversion that is more directly perceived and that reduce in subsequent step, general one of them direction of selection is the axial direction along Oil-impregnated Paper Condenser Bushing in History.
Show that Oil-impregnated Paper Condenser Bushing in History raises the superfrequency radiation characteristic of seat according to described analysis of data collected; In the present embodiment, superfrequency radiation characteristic comprises the distribution characteristics of energy of electromagnetic field, electromagnetic wave propagation path and Electromagnetic Wave Propagation cutoff frequency.By the time domain change procedure of the Electric and magnetic fields at each data observation point place collected, electric field, magnetic field Discrete Change data that each data observation point records can be obtained, thus Poynting vector can be calculated and obtain electromagnetic wave signal spectral characteristic.Poynting vector (Poyntingvector) refers to the Poynting vector of elect magnetic field.The electric field intensity at data observation point place is E, and magnetic field intensity is H, then the energy flux density of this place's electromagnetic field is S=E × H, direction is determined by right-hand screw rule by E and H, the angle of size to be S=EHsin θ, θ be E and H, the representation unit time, unit was watt/meter by the energy of vertical unit area
2.Wherein, the change procedure of research Poynting vector can learn distribution characteristics and the electromagnetic wave propagation path of energy of electromagnetic field, and the electromagnetic wave signal spectral characteristic analyzing each data observation point place can learn Electromagnetic Wave Propagation cutoff frequency.During concrete enforcement, multiple data observation point can be set respectively along certain the same direction from electromagenetic wave radiation, make the distance of each data observation point distance driving source different, by obtaining and contrast electric field intensity, the magnetic field intensity peak change of these data observation points, analyze the attenuation of electromagnetic wave along data observation point setting direction of the shelf depreciation driving source radiation obtaining setting, understand Electromagnetic Wave Propagation path, calculate the time domain change of Poynting vector.In addition, driving source condition can be changed and carry out l-G simulation test respectively, the electric field intensity that under drawing different driving source condition, each data observation point gathers, the time domain change procedure of magnetic field intensity, the field intensity peak change rule at same data observation point place under can obtaining different driving source, thus calculate the electromagnetic wave signal spectral characteristic of each data observation point position, obtain the Electromagnetic Wave Propagation cutoff frequency that Oil-impregnated Paper Condenser Bushing in History causes.Wherein, the driving source of different condition comprises the position difference in the local discharge signal source in different spoke value, distinct pulse widths and emulation.
The superfrequency radiation characteristic obtained by emulation mode of the present invention is to instruct reality, to understanding the Electromagnetic Wave Propagation path of the rising seat internal discharge signal of Oil-impregnated Paper Condenser Bushing in History.The actual superfrequency sensor arranged can detect the shelf depreciation that Oil-impregnated Paper Condenser Bushing in History rising seat produces in operational process, what therefore need consideration superfrequency sensor chooses type and setting position, wherein in an embodiment, the superfrequency radiation characteristic emulation mode that Oil-impregnated Paper Condenser Bushing in History of the present invention raises seat also comprises step: the superfrequency radiation characteristic raising local discharge signal in seat according to Oil-impregnated Paper Condenser Bushing in History, analyze and raise in Oil-impregnated Paper Condenser Bushing in History position and the model of installing superfrequency sensor in seat, the propagation properties simulation analysis of local discharge signal in seat is raised by Oil-impregnated Paper Condenser Bushing in History, the external signal of the some rice in distance local discharge signal source almost decays to zero, then can determine the predeterminable range scope of superfrequency sensor to local discharge signal source correspondence position.
Refer to Fig. 2, the present invention also provides a kind of superfrequency radiation characteristic analogue system of Oil-impregnated Paper Condenser Bushing in History, comprises model construction module 10, simulation initialisation arranges module 20, data acquisition module 30 and data analysis module 40.
Wherein, model construction module 10 builds Oil-impregnated Paper Condenser Bushing in History rising seat three-dimensional model for the electric parameter of the size and material that raise seat according to Oil-impregnated Paper Condenser Bushing in History.Wherein, the electric parameter of material comprises conductivity and relative dielectric constant.This model construction module 10 comprises simulation software, as Pro/E (Pro/Engineer) software and XFDTD software.This Pro/E software is the three-dimensional software of the CAD/CAM/CAE integration under U.S. parameters technology company (PTC), can carry out the setting of the material electric parameter of each parts after building structural model in XFDTD software, XFDTD software is the all-wave 3 D electromagnetic field simulation software based on Fdtd Method (FDTD) method.Raise in the process of seat three-dimensional model in the concrete Oil-impregnated Paper Condenser Bushing in History that builds, preferred employing order from the inside to surface builds partial model successively according to the size of each parts of Oil-impregnated Paper Condenser Bushing in History, and each partial model comprises guide rod in sleeve pipe, capacitor core, end shield, end shield protective cover, mounting flange, inside pipe casing oil medium, upper insulator and lower insulator, top conservator and by army cap, voltage equalizing ball, rising seat, casing current transformer and sleeve pipe voltage transformer (VT).After putting up each partial model, the associated electrical parameters according to Materials Handbook carries out electric parameter setting respectively to each parts.Different between material electric parameter due to different parts, after the material electric parameter of realistic model is arranged, analogue system can be convenient to and distinguish each partial model according to electric parameter.
Simulation initialisation arranges module 20, comprises stress and strain model unit 21, simulation excitation source setting unit 22 and data observation point setting unit 23.Stress and strain model unit 21 is for carrying out grid initialization and the division of self application sub-grid based on finite time-domain method of difference to the three-dimensional model of described Oil-impregnated Paper Condenser Bushing in History.Simulation excitation source setting unit 22 is for arranging simulation excitation source in rising seat inside.Data observation point setting unit 23 is for arranging some data observations point.It can be simulation software that this simulation initialisation arranges module 20, the three-dimensional model wherein raising seat to described Oil-impregnated Paper Condenser Bushing in History carries out mode that grid initialization divided with self application sub-grid, arrange simulation excitation source and arrange some data observations point and previous embodiment Oil-impregnated Paper Condenser Bushing in History, and to raise the corresponding steps described in the superfrequency radiation characteristic emulation mode of seat identical, do not repeat them here.
Data acquisition module 30, for recording in Preset Time the time domain change procedure of the Electric and magnetic fields that each data observation point place obtains under corresponding driving source condition in simulation process, comprising the field intensity peak change of data observation point same under different driving source condition, and the field intensity peak change rule of different pieces of information observation station under same driving source condition.This data acquisition module is preferably XFDTD simulation software.
Data analysis module 40, for showing that according to described analysis of data collected Oil-impregnated Paper Condenser Bushing in History raises the superfrequency radiation characteristic of seat.Superfrequency radiation characteristic comprises the distribution characteristics of energy of electromagnetic field, electromagnetic wave propagation path and Electromagnetic Wave Propagation cutoff frequency.Data analysis module 40 is by analyzing the time domain change procedure of the Electric and magnetic fields at each data observation point place collected, obtain electric field, magnetic field Discrete Change data that each data observation point records, calculate Poynting vector and obtain electromagnetic wave signal spectral characteristic.Concrete, data analysis module 40 comprises Poynting vector analytic unit 41 and electromagnetic wave signal Analysis of Spectrum unit 42, wherein, Poynting vector analytic unit 41 studies the change procedure of Poynting vector, for obtaining distribution characteristics and the electromagnetic wave propagation path of energy of electromagnetic field, electromagnetic wave signal Analysis of Spectrum unit 42 analyzes the electromagnetic wave signal spectral characteristic at each data observation point place, for obtaining Electromagnetic Wave Propagation cutoff frequency.This data analysis module 40 can be computing machine.
This analogue system, when specifically using, is first set up Oil-impregnated Paper Condenser Bushing in History by simulation software and is raised seat three-dimensional model and carry out Initialize installation, and then image data and analysis data are to obtain the superfrequency radiation characteristic raising discharge signal in seat.Wherein, during simulation initialisation is arranged, grid initialization and the division of self-adaptation sub-grid are carried out to Oil-impregnated Paper Condenser Bushing in History, can realize increasing emulation exploitativeness under guarantee simulation result precision prerequisite.Arrange and the arranging adjustment and optimize of data observation point by arranging module 20 pairs of local discharge signal sources by simulation initialisation in Multi simulation running, adjustment Initialize installation condition, can so that draw superfrequency radiation characteristic.Multiple data observation point can be set respectively along certain the same direction from electromagenetic wave radiation as arranged by simulation initialisation, the distance of each data observation point distance driving source is different, by obtaining and contrast electric field intensity, the magnetic field intensity peak change of these data observation points, the time domain change of Poynting vector can be calculated, and analyze the attenuation of electromagnetic wave along data observation point setting direction of the shelf depreciation driving source radiation obtaining setting, understand Electromagnetic Wave Propagation path.In addition, driving source condition can be changed and carry out l-G simulation test respectively, the electric field intensity that under drawing different driving source condition, each data observation point gathers, the time domain change procedure of magnetic field intensity, the field intensity peak change rule at same data observation point place under can obtaining different driving source, thus calculate the electromagnetic wave signal spectral characteristic of each data observation point position, obtain the Electromagnetic Wave Propagation cutoff frequency that Oil-impregnated Paper Condenser Bushing in History causes.
In sum, the present invention adopts the program analysis of emulation to go out the superfrequency radiation characteristic of paper condenser bushing lifting seat, thus the distribution characteristics of the energy of electromagnetic field raising different local location discharge signal in seat can be known, electromagnetic wave propagation path and Electromagnetic Wave Propagation cutoff frequency, research superfrequency radiation characteristic can be used for installation and the use of the on-line measuring device of guide field Oil-impregnated Paper Condenser Bushing in History, achievement realizes through engineering approaches, compare site test safer, and have better economy and exploitativeness, solve patrolling and examining and detecting a difficult problem of Oil-impregnated Paper Condenser Bushing in History.
The foregoing describe the specific embodiment of the present invention, it describes comparatively concrete and detailed, but therefore can not be interpreted as limitation of the scope of the invention.For the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (10)
1. Oil-impregnated Paper Condenser Bushing in History raises an emulation mode for the superfrequency radiation characteristic of seat, and it comprises:
Build Oil-impregnated Paper Condenser Bushing in History and raise seat three-dimensional model;
Based on finite time-domain method of difference, grid initialization and the division of self application sub-grid are carried out to described three-dimensional model;
Simulation excitation source is set;
Some data observations point is set;
Obtain the image data at the described data observation point place obtained in emulation electromagnetic wave time domain communication process in Preset Time;
Show that described Oil-impregnated Paper Condenser Bushing in History raises the superfrequency radiation characteristic of seat according to described analysis of data collected.
2. emulation mode as described in claim 1, it is characterized in that: described structure Oil-impregnated Paper Condenser Bushing in History raises in the step of seat three-dimensional model, the physical size adopting order from the inside to surface to raise each parts of seat according to described Oil-impregnated Paper Condenser Bushing in History builds partial model successively, and carries out electric parameter setting respectively to each parts.
3. emulation mode as described in claim 1, it is characterized in that: describedly arrange in the step in simulation excitation source, described simulation excitation source is arranged in the rising seat in described three-dimensional model, and described simulation excitation source comprises ideal current source and the resistance in parallel with described ideal current source.
4. as described in claim 1 emulation mode, is characterized in that: describedly arrange in the step in simulation excitation source, and the setting in described simulation excitation source comprises the electromagnetic wave simulation excitation source arranging diverse location, different spoke value and distinct pulse widths.
5. emulation mode as described in claim 1, it is characterized in that: describedly arrange in the step of some data points, the quantity of described data observation point is multiple, and be arranged at respectively around Oil-impregnated Paper Condenser Bushing in History flange internal galleries, the surrounding of mounting flange and/or Oil-impregnated Paper Condenser Bushing in History, and be distributed on isodiametric circle in geometric format.
6. emulation mode as described in claim 1, it is characterized in that: showing that according to described analysis of data collected described Oil-impregnated Paper Condenser Bushing in History raises in the step of the superfrequency radiation characteristic of seat, described image data comprises the electric field at described data observation point place, the time domain change procedure in magnetic field, and described superfrequency radiation characteristic comprises the distribution characteristics of energy of electromagnetic field, electromagnetic wave propagation path and Electromagnetic Wave Propagation cutoff frequency.
7. Oil-impregnated Paper Condenser Bushing in History raises an analogue system for the superfrequency radiation characteristic of seat, it is characterized in that: comprising:
Model construction module, builds Oil-impregnated Paper Condenser Bushing in History and raises seat three-dimensional model;
Simulation initialisation arranges module, comprise stress and strain model unit, simulation excitation source setting unit and data observation point setting unit, described grid initialization division unit is used for carrying out grid initialization and the division of self application sub-grid based on finite time-domain method of difference to described three-dimensional model, described simulation excitation source setting unit arranges simulation excitation source in rising seat inside, and described data observation point setting unit is used for arranging some data observations point;
Data acquisition module, for recording in Preset Time the image data at the described data observation point place emulated in electromagnetic wave time domain communication process;
Data analysis module, for showing that according to described analysis of data collected described Oil-impregnated Paper Condenser Bushing in History raises the superfrequency radiation characteristic of seat.
8. analogue system as described in claim 7, is characterized in that: described data observation point setting unit arranges multiple data observation point respectively at Oil-impregnated Paper Condenser Bushing in History flange internal galleries, the surrounding of mounting flange and/or the surrounding of Oil-impregnated Paper Condenser Bushing in History.
9. analogue system as described in claim 7, is characterized in that: the image data of described data acquisition module comprises the electric field at described data observation point place, the time domain change procedure in magnetic field.
10. analogue system as described in claim 7, it is characterized in that: described data analysis module analysis comprises Poynting vector analytic unit, for obtaining distribution characteristics and the electromagnetic wave propagation path of energy of electromagnetic field, and electromagnetic wave signal Analysis of Spectrum unit, for obtaining Electromagnetic Wave Propagation cutoff frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510448438.0A CN105067916A (en) | 2015-07-27 | 2015-07-27 | Ultrahigh frequency radiation characteristic simulation method and system of oilpaper capacitance bushing lifting seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510448438.0A CN105067916A (en) | 2015-07-27 | 2015-07-27 | Ultrahigh frequency radiation characteristic simulation method and system of oilpaper capacitance bushing lifting seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105067916A true CN105067916A (en) | 2015-11-18 |
Family
ID=54497332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510448438.0A Pending CN105067916A (en) | 2015-07-27 | 2015-07-27 | Ultrahigh frequency radiation characteristic simulation method and system of oilpaper capacitance bushing lifting seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105067916A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271861A (en) * | 2017-06-14 | 2017-10-20 | 南方电网科学研究院有限责任公司 | Method and system for testing insulation index of transformer bushing |
| CN107957529A (en) * | 2016-10-18 | 2018-04-24 | Abb瑞士股份有限公司 | The method and apparatus that electric current for testing high voltage condenser-type terminal sub-assembly connects |
| CN110687413A (en) * | 2019-11-01 | 2020-01-14 | 云南电网有限责任公司电力科学研究院 | Partial discharge electromagnetic wave attenuation characteristic test device |
| CN113433436A (en) * | 2021-06-24 | 2021-09-24 | 云南电网有限责任公司电力科学研究院 | Ultrahigh frequency radiation characteristic simulation method and device for oiled paper capacitive bushing |
| CN114114960A (en) * | 2022-01-06 | 2022-03-01 | 国网辽宁省电力有限公司沈阳供电公司 | Solid-oil mixture type high-voltage cable-GIS terminal internal discharge high-frequency electromagnetic field distribution characteristic simulation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5075629A (en) * | 1989-05-11 | 1991-12-24 | Kabushiki Kaisha Toshiba | Partial discharge detecting device for electrical equipments |
| CN102866377A (en) * | 2012-09-17 | 2013-01-09 | 中国电力科学研究院 | Detection and verification system and method of transformer partial discharge and positioning on-line monitoring assembly |
| CN202748441U (en) * | 2012-06-06 | 2013-02-20 | 广西电网公司电力科学研究院 | Transformer partial discharge testing device |
| JP2014181998A (en) * | 2013-03-19 | 2014-09-29 | Toshiba Corp | Partial discharge monitoring system and partial discharge monitoring method |
| CN104198902A (en) * | 2014-08-20 | 2014-12-10 | 上海交通大学 | Method for improving local discharge ultrahigh frequency detection effect of 110kV cable joint |
-
2015
- 2015-07-27 CN CN201510448438.0A patent/CN105067916A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5075629A (en) * | 1989-05-11 | 1991-12-24 | Kabushiki Kaisha Toshiba | Partial discharge detecting device for electrical equipments |
| CN202748441U (en) * | 2012-06-06 | 2013-02-20 | 广西电网公司电力科学研究院 | Transformer partial discharge testing device |
| CN102866377A (en) * | 2012-09-17 | 2013-01-09 | 中国电力科学研究院 | Detection and verification system and method of transformer partial discharge and positioning on-line monitoring assembly |
| JP2014181998A (en) * | 2013-03-19 | 2014-09-29 | Toshiba Corp | Partial discharge monitoring system and partial discharge monitoring method |
| CN104198902A (en) * | 2014-08-20 | 2014-12-10 | 上海交通大学 | Method for improving local discharge ultrahigh frequency detection effect of 110kV cable joint |
Non-Patent Citations (3)
| Title |
|---|
| 姚陈果等: "采用时域有限差分法分析开关柜中超高频信号传播特性", 《高电压技术》 * |
| 杨梦滢等: "基于通用软件ANSYS的电力变压器升高座三维磁场分析", 《变压器》 * |
| 蔡明 等: "金属套管对井中电磁场特性影响的有限元分析", 《石油物探》, vol. 50, no. 5, 30 September 2011 (2011-09-30), pages 470 - 474 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957529A (en) * | 2016-10-18 | 2018-04-24 | Abb瑞士股份有限公司 | The method and apparatus that electric current for testing high voltage condenser-type terminal sub-assembly connects |
| CN107957529B (en) * | 2016-10-18 | 2021-12-28 | 日立能源瑞士股份公司 | Method and apparatus for testing current connections of a high voltage condenser bushing assembly |
| CN107271861A (en) * | 2017-06-14 | 2017-10-20 | 南方电网科学研究院有限责任公司 | Method and system for testing insulation index of transformer bushing |
| CN110687413A (en) * | 2019-11-01 | 2020-01-14 | 云南电网有限责任公司电力科学研究院 | Partial discharge electromagnetic wave attenuation characteristic test device |
| CN113433436A (en) * | 2021-06-24 | 2021-09-24 | 云南电网有限责任公司电力科学研究院 | Ultrahigh frequency radiation characteristic simulation method and device for oiled paper capacitive bushing |
| CN114114960A (en) * | 2022-01-06 | 2022-03-01 | 国网辽宁省电力有限公司沈阳供电公司 | Solid-oil mixture type high-voltage cable-GIS terminal internal discharge high-frequency electromagnetic field distribution characteristic simulation method |
| CN114114960B (en) * | 2022-01-06 | 2024-04-09 | 国网辽宁省电力有限公司沈阳供电公司 | Solid-oil mixed high-voltage cable-GIS terminal internal discharge high-frequency electromagnetic field distribution characteristic simulation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105005665A (en) | Method and system for ultrahigh frequency radiation characteristic simulation of oil impregnated paper condenser sleeve end screen | |
| CN105067916A (en) | Ultrahigh frequency radiation characteristic simulation method and system of oilpaper capacitance bushing lifting seat | |
| Smajic et al. | Simulation and measurement of lightning-impulse voltage distributions over transformer windings | |
| CN105277857B (en) | A kind of bushing shell for transformer of monitoring on-line makes moist the method for defect | |
| Sima et al. | Impact of time parameters of lightning impulse on the breakdown characteristics of oil paper insulation | |
| CN106771505B (en) | Single-phase overhead transmission line of electricity phase voltage method for self-calibrating based on series capacitance | |
| CN104850738B (en) | Lightning induced voltage computational methods at overhead power transmission line line pole tower | |
| CN106021811B (en) | A kind of magnetic material wideband complex permeability measuring method | |
| CN105353282A (en) | Transmission characteristic simulation method and system for partial discharge ultrahigh-frequency electromagnetic wave signal of transformer | |
| CN103760402B (en) | Voltage compensating method is affected based on the threephase potential transformer of D_dot principle and three-phase | |
| CN103630803A (en) | Cable partial discharge live correction method | |
| CN109782206A (en) | A kind of compensation for calibrating errors method for wideband transient voltage measuring device | |
| CN103675611A (en) | Collection point positioning method and system in partial discharge detection for tubular insulating bus | |
| CN108918986B (en) | Method and system for testing electromagnetic shielding performance of low-voltage power cable | |
| CN102707211B (en) | Method and system for simulating ultrahigh-frequency radiation characteristic of cable straight joint | |
| CN103513081B (en) | A kind of resistor-type impulse voltage divider of high accuracy fast-response | |
| CN106970268A (en) | Single-phase overhead transmission line of electricity phase voltage method for self-calibrating based on shunt capacitance | |
| CN204044215U (en) | A kind of many mouthfuls of high-frequency pulse current transformers putting detection and location for office | |
| CN102721909B (en) | Ultrahigh frequency radiation characteristic simulation method and system for cable body | |
| CN107064612A (en) | Single-phase overhead transmission line of electricity phase voltage measuring method | |
| Vahdi et al. | Transient simulation of cast‐resin dry‐type transformers using FEM | |
| CN102722630B (en) | Cable terminal ultrahigh frequency radiation characteristic simulation method and cable terminal ultrahigh frequency radiation characteristic simulation system | |
| CN109782082A (en) | Deformation of transformer winding does not understand line detecting method | |
| Jurišić et al. | Case study on transformer models for calculation of high frequency transmitted overvoltages | |
| CN207232365U (en) | A kind of inspection circuit of partial discharge of transformer high frequency measuring instrument detection frequency band |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151118 |
|
| RJ01 | Rejection of invention patent application after publication |