CN105005665A - Method and system for ultrahigh frequency radiation characteristic simulation of oil impregnated paper condenser sleeve end screen - Google Patents
Method and system for ultrahigh frequency radiation characteristic simulation of oil impregnated paper condenser sleeve end screen Download PDFInfo
- Publication number
- CN105005665A CN105005665A CN201510448439.5A CN201510448439A CN105005665A CN 105005665 A CN105005665 A CN 105005665A CN 201510448439 A CN201510448439 A CN 201510448439A CN 105005665 A CN105005665 A CN 105005665A
- Authority
- CN
- China
- Prior art keywords
- impregnated paper
- oil
- history
- data
- paper condenser
- 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
Abstract
The invention provides a method for ultrahigh frequency radiation characteristic simulation of an oil impregnated paper condenser sleeve end screen. The method comprises the following steps of: building a three-dimensional model of an oil impregnated paper condenser sleeve; performing grid initialization and self-adaptive sub grid division on the three-dimensional model on the basis of a finite-difference time-domain method; setting a simulation excitation source; installing a plurality of data observation points; obtaining collecting data, in positions of the data observation points, obtained in the simulation electromagnetic wave time domain spreading process in the preset time; and performing analysis according to the collecting data to obtain the ultrahigh frequency radiation characteristic of the oil impregnated paper condenser sleeve end screen. By the simulation method, the good fitting with the engineering practice can be realized. Compared with field tests, the method is safer and has better economic performance and higher feasibility. 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 a kind of superfrequency radiation characteristic emulation mode of Oil-impregnated Paper Condenser Bushing in History end shield.
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.Outermost layer aluminium foil and end shield are drawn by small casing, whether meet the preventive trial project of related standards or technical conditions as checking transformer performance.Test on bushing mainly detects transformer major insulation and condenser-type terminal end shield insulation against ground resistance, sleeve pipe dielectric loss, electric capacity and partial discharge quantity etc., and end shield is in operation and answers good earth.If because a variety of causes causes the unsound or imperfect earth of end shield in running, so end shield can form an electric capacity over the ground, and this electric capacity is much smaller than the electric capacity of sleeve pipe itself, according to capacitances in series principle, very high suspended voltage will be formed between end shield and ground, causing end shield to discharge over the ground, burn the insulant near end shield, also can there is bushing explosion accident in serious.
Existing sleeve pipe preventive trial method needs interim disconnection end shield ground terminal or Iterim Change end shield ground loop, and the operation lack of standardization of field staff or negligence often cause end shield virtual connection over the ground.The parameters such as another existing a kind of sleeve pipe on-Line Monitor Device energy on-line measurement sleeve pipe dielectric loss, electric capacity, by sealing in sensor in ground loop, but also need to change sleeve pipe original end shield ground loop during the use of this on-line measuring device, in installation process, installation position selection is improper also as easy as rolling off a log causes end shield virtual connection or broken string, causes end shield terminal continuous discharge under working voltage and the above serious bushing explosion accident may occur.
Therefore, be necessary in fact to provide a kind of safer, method and apparatus realizing Oil-impregnated Paper Condenser Bushing in History test of having more exploitativeness.
Summary of the invention
Based on this, the invention reside in provide a kind of safer, have more exploitativeness realize Oil-impregnated Paper Condenser Bushing in History test method and system, by setting up the superfrequency radiation characteristic l-G simulation test of Oil-impregnated Paper Condenser Bushing in History end shield virtual connection electric discharge, the route of transmission of research end shield internal electrical magnetostatic wave signal and radiation feature collection of illustrative plates, to instruct installation and the use of sleeve pipe on-line measuring device.
According to one aspect of the invention, provide a kind of superfrequency radiation characteristic emulation mode of Oil-impregnated Paper Condenser Bushing in History end shield, it comprises: build Oil-impregnated Paper Condenser Bushing in History 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; The superfrequency radiation characteristic of described Oil-impregnated Paper Condenser Bushing in History end shield is drawn according to described analysis of data collected.
According to a further aspect in the invention, a kind of analogue system of superfrequency radiation characteristic of Oil-impregnated Paper Condenser Bushing in History end shield, comprising: model construction module, builds Oil-impregnated Paper Condenser Bushing in History 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; 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 drawing the superfrequency radiation characteristic of described Oil-impregnated Paper Condenser Bushing in History end shield according to described analysis of data collected.
The present invention adopts the mode of emulation to analyze the superfrequency radiation characteristic of Oil-impregnated Paper Condenser Bushing in History end shield, thus the superfrequency radiation characteristic of different local location discharge signal when can know end shield virtual connection, 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 patrolling and examining and detecting a difficult problem of Oil-impregnated Paper Condenser Bushing in History end shield virtual connection electric discharge.
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 end shield 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 end shield 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 end shield that one embodiment of the invention provides, it comprises the steps:
Build Oil-impregnated Paper Condenser Bushing in History three-dimensional model; Build Oil-impregnated Paper Condenser Bushing in History model according to the physical size of Oil-impregnated Paper Condenser Bushing in History and the electric parameter of its material, 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.In the process of concrete structure Oil-impregnated Paper Condenser Bushing in History 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, 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.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.
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 of described Oil-impregnated Paper Condenser Bushing in History; Due to Oil-impregnated Paper Condenser Bushing in History 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 pipe itself 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 end shield 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 of shelf depreciation in end shield.Simulation excitation source is arranged in the end shield 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 the travel path of end shield 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 the breakdown characteristics of air under power frequency electric field, 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, can have an impact to the Electromagnetic Wave Propagation of end shield inside, 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 Electromagnetic Wave Propagation process 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 analyze the impact of corresponding sleeve structure for Electromagnetic Wave Propagation to a certain extent.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.
The superfrequency radiation characteristic of Oil-impregnated Paper Condenser Bushing in History end shield is drawn 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 (Poynting vector) refers to the Poynting vector of elect magnetic field.The electric field intensity at data observation point place is E, 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, size is S=EHsin θ, θ is the angle of E and H, and the representation unit time, unit was watts/meter 2 by the energy of vertical unit area.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, 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, 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 avoiding the generation of the class events such as end shield virtual connection, need the actual superfrequency sensor arranged the shelf depreciation that Oil-impregnated Paper Condenser Bushing in History end shield produces in operational process can be detected, what therefore need consideration superfrequency sensor chooses type and setting position, wherein in an embodiment, the superfrequency radiation characteristic emulation mode of Oil-impregnated Paper Condenser Bushing in History end shield of the present invention also comprises step: according to the superfrequency radiation characteristic of local discharge signal in Oil-impregnated Paper Condenser Bushing in History end shield, analyze the position and model of in Oil-impregnated Paper Condenser Bushing in History end shield, installing superfrequency sensor, as the propagation characteristic simulation analysis by local discharge signal in Oil-impregnated Paper Condenser Bushing in History end shield, 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 is for building Oil-impregnated Paper Condenser Bushing in History three-dimensional model according to the size of Oil-impregnated Paper Condenser Bushing in History and the electric parameter of material.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.Build in the process of Oil-impregnated Paper Condenser Bushing in History three-dimensional model concrete, 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.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.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, wherein carry out grid initialization and self application sub-grid to the three-dimensional model of described Oil-impregnated Paper Condenser Bushing in History to divide, arrange simulation excitation source and arrange the corresponding steps described in the mode of some data observations point and the superfrequency radiation characteristic emulation mode of previous embodiment Oil-impregnated Paper Condenser Bushing in History end shield 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 drawing the superfrequency radiation characteristic of Oil-impregnated Paper Condenser Bushing in History end shield according to described analysis of data collected.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, electric field, magnetic field Discrete Change data that each data observation point records can be obtained, 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, first sets up Oil-impregnated Paper Condenser Bushing in History three-dimensional model and carry out Initialize installation by simulation software, and then image data and analysis data are to obtain the superfrequency radiation characteristic of end shield.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.Undertaken arranging by the local discharge signal source in Multi simulation running and the arranging adjustment and optimize of data observation point, adjustment Initialize installation, 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 bottom shielding of bushing, thus the distribution characteristics of the energy of electromagnetic field of different placement position discharge signal when can know end shield virtual connection, 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 end shield virtual connection electric discharge.
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. an emulation mode for the superfrequency radiation characteristic of Oil-impregnated Paper Condenser Bushing in History end shield, it comprises:
Build Oil-impregnated Paper Condenser Bushing in History 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;
The superfrequency radiation characteristic of described Oil-impregnated Paper Condenser Bushing in History end shield is drawn according to described analysis of data collected.
2. emulation mode as described in claim 1, it is characterized in that: in the step of described structure Oil-impregnated Paper Condenser Bushing in History three-dimensional model, adopt order from the inside to surface to build partial model successively according to the physical size of each parts of described Oil-impregnated Paper Condenser Bushing in History, and respectively electric parameter setting is carried out 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 end shield 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: in the step of superfrequency radiation characteristic drawing described Oil-impregnated Paper Condenser Bushing in History end shield according to described analysis of data collected, 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. an analogue system for the superfrequency radiation characteristic of Oil-impregnated Paper Condenser Bushing in History end shield, is characterized in that: comprising:
Model construction module, builds Oil-impregnated Paper Condenser Bushing in History 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;
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 drawing the superfrequency radiation characteristic of described Oil-impregnated Paper Condenser Bushing in History end shield according to described analysis of data collected.
8. analogue system as described in claim 7, it 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, and described simulation excitation source setting unit arranges simulation excitation source in end shield inside.
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 |
|---|---|---|---|
| CN201510448439.5A CN105005665A (en) | 2015-07-27 | 2015-07-27 | Method and system for ultrahigh frequency radiation characteristic simulation of oil impregnated paper condenser sleeve end screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510448439.5A CN105005665A (en) | 2015-07-27 | 2015-07-27 | Method and system for ultrahigh frequency radiation characteristic simulation of oil impregnated paper condenser sleeve end screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105005665A true CN105005665A (en) | 2015-10-28 |
Family
ID=54378338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510448439.5A Pending CN105005665A (en) | 2015-07-27 | 2015-07-27 | Method and system for ultrahigh frequency radiation characteristic simulation of oil impregnated paper condenser sleeve end screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105005665A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107085645A (en) * | 2017-04-28 | 2017-08-22 | 南方电网科学研究院有限责任公司 | Optimize the method and system of Oil-impregnated Paper Condenser Bushing in History |
| CN109344475A (en) * | 2018-09-19 | 2019-02-15 | 哈尔滨理工大学 | Carbon fibre composite radiation characteristic method for numerical simulation based on FDTD |
| CN110244109A (en) * | 2019-07-05 | 2019-09-17 | 杭州西湖电子研究所 | A kind of wide area end shield earth current three-dimensional figure spectrum expression |
| CN111259533A (en) * | 2020-01-13 | 2020-06-09 | 武汉理工大学 | Method for calculating ultra-fast transient electromagnetic radiation at bushing position under GIS disconnecting switch operation |
| 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722630A (en) * | 2012-07-03 | 2012-10-10 | 广州供电局有限公司 | Cable terminal ultrahigh frequency radiation characteristic simulation method and cable terminal ultrahigh frequency radiation characteristic simulation system |
| CN103197212A (en) * | 2013-03-29 | 2013-07-10 | 国家电网公司 | Global information system (GIS) partial discharge on-line monitoring calibration instrument and configuration authentication method thereof |
| CN103675611A (en) * | 2013-09-29 | 2014-03-26 | 广州供电局有限公司 | Collection point positioning method and system in partial discharge detection for tubular insulating bus |
-
2015
- 2015-07-27 CN CN201510448439.5A patent/CN105005665A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722630A (en) * | 2012-07-03 | 2012-10-10 | 广州供电局有限公司 | Cable terminal ultrahigh frequency radiation characteristic simulation method and cable terminal ultrahigh frequency radiation characteristic simulation system |
| CN103197212A (en) * | 2013-03-29 | 2013-07-10 | 国家电网公司 | Global information system (GIS) partial discharge on-line monitoring calibration instrument and configuration authentication method thereof |
| CN103675611A (en) * | 2013-09-29 | 2014-03-26 | 广州供电局有限公司 | Collection point positioning method and system in partial discharge detection for tubular insulating bus |
Non-Patent Citations (1)
| 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》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107085645A (en) * | 2017-04-28 | 2017-08-22 | 南方电网科学研究院有限责任公司 | Optimize the method and system of Oil-impregnated Paper Condenser Bushing in History |
| CN109344475A (en) * | 2018-09-19 | 2019-02-15 | 哈尔滨理工大学 | Carbon fibre composite radiation characteristic method for numerical simulation based on FDTD |
| CN110244109A (en) * | 2019-07-05 | 2019-09-17 | 杭州西湖电子研究所 | A kind of wide area end shield earth current three-dimensional figure spectrum expression |
| CN111259533A (en) * | 2020-01-13 | 2020-06-09 | 武汉理工大学 | Method for calculating ultra-fast transient electromagnetic radiation at bushing position under GIS disconnecting switch operation |
| 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 | |
| Smajic et al. | Simulation and measurement of lightning-impulse voltage distributions over transformer windings | |
| CN104597425B (en) | One kind being suitable for GIS electronic mutual inductor and charges evaluating platform | |
| CN105067916A (en) | Ultrahigh frequency radiation characteristic simulation method and system of oilpaper capacitance bushing lifting seat | |
| CN103091609A (en) | Performance detecting system and method thereof of gas insulated substation (GIS) partial discharge on-line monitoring device | |
| CN103487679B (en) | A kind of AIS electric mutual inductor test macro and method thereof | |
| CN104360197B (en) | Method for monitoring resistance of valve discs of arresters based on resistance-capacitance network | |
| CN105160172B (en) | A kind of method of determining GIS intelligent substations component ports electromagnetic disturbance | |
| CN108647479B (en) | Lightning arrester fault transient waveform diagnosis method and device | |
| CN105353282A (en) | Transmission characteristic simulation method and system for partial discharge ultrahigh-frequency electromagnetic wave signal of transformer | |
| 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 | |
| Heindl et al. | Transformer modeling based on standard frequency response measurements | |
| CN107167698B (en) | Lightning arrester leakage current live-line test device and method | |
| CN110807243A (en) | Transformer winding equivalent circuit model building method considering frequency-dependent parameters | |
| Wu et al. | Study on coupling of very fast transients to secondary cable via a test platform | |
| CN204044215U (en) | A kind of many mouthfuls of high-frequency pulse current transformers putting detection and location for office | |
| Kuczek et al. | Investigation on new mitigation method for lightning overvoltages in high‐voltage power substations | |
| CN104765920A (en) | Insulation defect design method and device for capacitive sleeve | |
| Vahdi et al. | Transient simulation of cast‐resin dry‐type transformers using FEM | |
| CN102721909A (en) | Ultrahigh frequency radiation characteristic simulation method and system for cable body | |
| CN102722630B (en) | Cable terminal ultrahigh frequency radiation characteristic simulation method and cable terminal ultrahigh frequency radiation characteristic simulation system | |
| CN104833883B (en) | A kind of earth mat method of testing based on 10 35kV short circuit groundings | |
| Zhang et al. | The broadband frequency characteristics of major equipment in the±800 kV converter station and their influences to the short-circuit fault transient | |
| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151028 |