CN106896319B - A kind of method for building up and system of breaker arcing process electromagnetic model - Google Patents
A kind of method for building up and system of breaker arcing process electromagnetic model Download PDFInfo
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- CN106896319B CN106896319B CN201710129264.0A CN201710129264A CN106896319B CN 106896319 B CN106896319 B CN 106896319B CN 201710129264 A CN201710129264 A CN 201710129264A CN 106896319 B CN106896319 B CN 106896319B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
This application discloses the method for building up and system of a kind of breaker arcing process electromagnetic model, wherein, the method for building up of breaker arcing process electromagnetic model includes: the structural parameters for obtaining breaker, breaker simulation model is established by preset ratio according to the structural parameters of breaker, the structural parameters of breaker include the structure of breaker, shape size and material property；The electromagnetic environment parameter for obtaining breaker establishes the emulation electromagnetic environment during arcing where breaker simulation model according to electromagnetic environment parameter；Using the high frequency discharge excited source of Gaussian pulse signal imitation, simulation discharge treatment is carried out to the breaker simulation model in emulation electromagnetic environment, to emulate breaker arcing process；The situation of change of electromagnetic wave signal during the breaker arcing of detection emulation, at breaker simulation model pre-determined distance.Technical solution provided by the present application can accurately reflect the arcing process of breaker, and the ablation degree of breaker can be further determined that according to the arcing process.
Description
Technical field
This application involves electrical equipment detection field more particularly to a kind of foundation sides of breaker arcing process electromagnetic model
Method and system.
Background technique
Electrical equipment is easy to cause electric fault, the place power train caused by electrical equipment faults itself because of self-characteristic
The accident of system, shared ratio increases year by year in whole accidents of electric system.Since breaker is as numerous critical electricals
One of equipment or critical electrical equipment component, operating reliability directly influence the safe operation of entire electric system.
Since the operating reliability of breaker directly influences the safe operation of entire electric system, to reduce because disconnected
The electric fault that road device faults itself causes, is just receiving more and more attention the research of breaker self-characteristic.Arc extinguishing is special
Property is the most important characteristic of breaker.For breaker when cut-offfing short circuit current, the electric arc of generation can ablation contact surface.After ablation
Contact surface shape can change, after breaker closing, corresponding change can occur for the contact situation of contact surface, work as contact
It can generate heat when the poor contact of surface, or even deadmelt phenomenon occur, influence is cut-off next time, or even generates electrical malfunction.It is existing
Have in technology for protective breaker, it will usually configure arc-chutes, be filled with the insulating gas such as SF6 in arc-chutes or arc-chutes are
Vacuum state, to reach arc quenching effect.
Although breaker can arc extinguishing, electric arc still is able to impact contact and the arc extinguishing of different breakers
Characteristic is not identical, lacks effective breaker arc extinguishing Characteristics Detection and evaluation measures in the prior art, leads to not and determines
Whether breaker can reach arc extinguishing requirement, this has become one of major hidden danger of safe operation of power system.
Summary of the invention
The purpose of the application is to provide a kind of method for building up of breaker arcing process electromagnetic model and the technical side of system
Case, to solve to lack effective breaker arc extinguishing Characteristics Detection and evaluation means described in background technique in the prior art,
Lead to not that the problem of whether breaker can reach arc extinguishing requirement, bring hidden danger to safe operation of power system determined.
In order to solve the above-mentioned technical problem, the application provides the following technical solutions:
According to a first aspect of the present application, a kind of method for building up of breaker arcing process electromagnetic model, the party are provided
Method includes:
The structural parameters for obtaining breaker establish breaker emulation by preset ratio according to the structural parameters of the breaker
Model, wherein the structural parameters of the breaker include structure, shape size and the material property of the breaker；
The electromagnetic environment parameter for obtaining the breaker is established described disconnected during arcing according to the electromagnetic environment parameter
Emulation electromagnetic environment where the device simulation model of road；
Using the high frequency discharge excited source of Gaussian pulse signal imitation, mould is emulated to the breaker in the emulation electromagnetic environment
Type carries out simulation discharge treatment, to emulate breaker arcing process；
During detecting the breaker arcing of emulation, electromagnetic wave signal at the breaker simulation model pre-determined distance
Situation of change.
Preferably, the method for building up of the breaker arcing process electromagnetic model further include:
According to the burning of contact in the breaker during the situation of change of electromagnetic wave signal assessment breaker arcing
Degree of corrosion.
Preferably, it is described according to the situation of change of electromagnetic wave signal assess arcing during the breaker contact burning
Degree of corrosion, comprising:
Electromagnetic wave letter during judging breaker arcing, at the shell pre-determined distance apart from the breaker simulation model
Number waveform whether change；
If the waveform of the electromagnetic wave signal changes, it is determined that there are ablations for the contact of the breaker.
Preferably, the emulation electromagnetism established according to electromagnetic environment parameter during arcing where breaker simulation model
Environment, comprising: according to the electromagnetic environment parameter, determine space locating for breaker to the loss ability of electromagnetic wave signal.
Preferably, described to use the high frequency discharge excited source of Gaussian pulse signal imitation, in the emulation electromagnetic environment
Breaker simulation model carries out simulation discharge treatment, to emulate breaker arcing process, comprising:
Change the strong of high frequency discharge excited source during breaker arcing described in the amplitude analog of the Gaussian pulse signal
Degree；
The pulsewidth for changing the Gaussian pulse signal simulates high frequency discharge excited source radiation during the breaker arcing
Electromagnetic wave signal frequency range；And
Change the number in high frequency discharge excited source during breaker arcing described in the Population number dynamic imitation of the Gaussian pulse signal
Amount.
According to a second aspect of the present application, a kind of system of establishing of breaker arcing process electromagnetic model, packet are additionally provided
It includes:
Structural parameters obtain module, for obtaining the structural parameters of breaker, wherein the structural parameters packet of the breaker
Include structure, shape size and the material property of the breaker；
Building of Simulation Model module, for establishing breaker emulation by preset ratio according to the structural parameters of the breaker
Model；
Environmental parameter obtains module, for obtaining the electromagnetic environment parameter of the breaker；
Simulated environment establishes module, emulates for the breaker during establishing arcing according to the electromagnetic environment parameter
Model emulation electromagnetic environment；
Arcing module is emulated, for using the high frequency discharge excited source of Gaussian pulse signal imitation, to the emulation electromagnetism ring
Breaker simulation model in border carries out simulation discharge treatment, to emulate breaker arcing process；
Electromagnetic Wave Detection module, during the breaker arcing for detecting emulation, the breaker simulation model it is default
The situation of change of electromagnetic wave signal at distance.
Preferably, the breaker arcing process electromagnetic model establishes system further include:
Ablation scale evaluation module, during according to the situation of change of electromagnetic wave signal assessment breaker arcing
The ablation degree of contact in the breaker.
Preferably, the ablation scale evaluation module, comprising:
Electromagnetic wave changes judging submodule, for during judging breaker arcing, apart from the breaker simulation model
Shell pre-determined distance at the waveform of electromagnetic wave signal whether change；
Ablation determines submodule, if the waveform for the electromagnetic wave signal changes, determines the breaker
There are ablations for contact.
Preferably, the simulated environment establishes module, is specifically used for determining breaker institute according to the electromagnetic environment parameter
Locate space to the loss ability of electromagnetic wave signal.
Preferably, the emulation arcing module, comprising:
Strength simulation submodule, during breaker arcing described in the amplitude analog for changing the Gaussian pulse signal
The intensity in high frequency discharge excited source；
Frequency range simulation submodule, during the pulsewidth simulation breaker arcing of the Gaussian pulse signal
The electromagnetic wave signal frequency range of high frequency discharge excited source radiation；And
Population number dynamic imitation submodule, during breaker arcing described in the Population number dynamic imitation for changing the Gaussian pulse signal
The quantity in high frequency discharge excited source.
Breaker arcing process electromagnetic model provided by the present application establishes scheme, has following technical effect that
By obtaining the structural parameters of breaker, breaker is established according to preset ratio according to the structural parameters of breaker and is imitated
True mode, and the electromagnetic environment parameter of the practical place electromagnetic environment of breaker is obtained, establish the emulation electromagnetism ring where breaker
Border.By breaker in simulation truth and the electromagnetic environment where breaker, it is imitative to can be improved breaker arcing process
Genuine authenticity.And by using the high frequency discharge excited source of Gaussian pulse signal imitation, to the open circuit in emulation electromagnetic environment
Device simulation model carries out simulation discharge treatment, the high-frequency discharge situation during breaker arcing can be accurately emulated, into one
The situation of change of electromagnetic wave signal at step detection breaker simulation model pre-determined distance is broken during breaker open operation
The dynamic/static contact of road device can puncture, therefore change rapidly in breakdown immediate current, to generate mutation magnetic field, Jin Er
Electromagnetic wave signal is inspired in space, the situation of change by detecting the electromagnetic wave signal can determine breaker arcing process
In the ablation extent of damage.Breaker arcing process electromagnetic model provided by the present application establishes scheme, can accurately reflect disconnected
The arcing process of road device, and the ablation degree of breaker can be further determined that according to the arcing process, whether judge breaker
Arc extinguishing requirement can be reached, be live detection breaker arc extinguishing performance based theoretical.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without any creative labor,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of breaker provided by the embodiments of the present application；
Fig. 2 is that the process of the method for building up of the first breaker arcing process electromagnetic model provided by the embodiments of the present application is shown
It is intended to；
Fig. 3 is that the process of the method for building up of second of breaker arcing process electromagnetic model provided by the embodiments of the present application is shown
It is intended to；
Fig. 4 is that the process of the method for building up of the third breaker arcing process electromagnetic model provided by the embodiments of the present application is shown
It is intended to；
Fig. 5 is the waveform diagram of electromagnetic wave signal when a kind of contact of breaker provided by the embodiments of the present application is not ablated；
Fig. 6 is that there are the waveform diagrams of electromagnetic wave signal when ablation for a kind of contact of breaker provided by the embodiments of the present application；
Fig. 7 is that the structure for establishing system of the first breaker arcing process electromagnetic model provided by the embodiments of the present application is shown
It is intended to；
Fig. 8 is that the structure for establishing system of second of breaker arcing process electromagnetic model provided by the embodiments of the present application is shown
It is intended to；
Fig. 9 is that the structure for establishing system of the third breaker arcing process electromagnetic model provided by the embodiments of the present application is shown
It is intended to.
Specific embodiment
The technical solution of the foundation of breaker arcing process electromagnetic model provided by the embodiments of the present application, solves background skill
Lack effective breaker arc extinguishing Characteristics Detection and evaluation means described in art in the prior art, leads to not accurate determination
The problem of whether breaker can reach arc extinguishing requirement.
In order to make those skilled in the art more fully understand the technical solution in the embodiment of the present application, and keep the application real
The above objects, features, and advantages for applying example can be more obvious and easy to understand, with reference to the accompanying drawing to the technology in the embodiment of the present application
Scheme is described in further detail.
It referring to Figure 1, is a kind of structural schematic diagram of breaker provided by the embodiments of the present application.As shown in Figure 1, the open circuit
Device includes the structures such as case for circuit breaker 1, contact 2 and spout 3, in addition to achieving the effect that arc extinguishing, breaker further includes vacuum
Or the arc-chutes filled with inertia insulating gas.Following breaker arcing process electromagnetic models provided by the embodiments of the present application are built
Cube method, i.e., by emulating true electromagnetic environment locating for the structural parameters and breaker of breaker shown in the Fig. 1, research
Arc extinguishing and ablation situation of the breaker in arcing process.
Fig. 2 is referred to, is that a kind of process of the method for building up of breaker arcing process electromagnetic model provided by the present application is shown
It is intended to.As shown in Fig. 2, the method for building up of breaker arcing process electromagnetic model provided by the embodiments of the present application includes:
S110: obtaining the structural parameters of breaker, establishes breaker by preset ratio according to the structural parameters of breaker and imitates
True mode, wherein the structural parameters of the breaker include structure, shape size and the material property of the breaker.
The structural parameters of breaker mainly include the material structure and internal each component of breaker, as shell, dynamic/static contact,
Spout and arc-chutes etc..In addition, further include the shape size of each structure of breaker, with the breaker model of simulating realistic ratio,
Such as establish the breaker model of 1:1 size.The structural parameters of breaker further include the material property of each structure of breaker, such as open circuit
Each structure of device uses the conductivity and magnetic conductivity of material.
S120: obtaining the electromagnetic environment parameter of breaker, and breaker is imitative during establishing arcing according to electromagnetic environment parameter
Emulation electromagnetic environment where true mode.
The electromagnetic environment parameter of breaker mainly includes the space during breaker arcing within the scope of locating certain distance,
Such as the space with predetermined distance range of a certain range of vacuum of breaker, SF6 gas or inert gas.It is disconnected by obtaining
The electromagnetic environment parameter of road device, can be according to imitative where breaker simulation model during electromagnetic environment parameter simulation arcing
True electromagnetic environment to study the emulation electromagnetic environment to the extent of deterioration of electromagnetic wave signal, and then is studied and is applying high frequency arteries and veins
When rushing signal, situations such as the size of the space pre-position electromagnetic wave signal, the ablation degree of breaker is assessed.
Specifically, the emulation electromagnetism ring during arcing where breaker simulation model is established according to electromagnetic environment parameter
Border specifically includes the loss ability that space locating for breaker is determined according to electromagnetic environment parameter to electromagnetic wave signal.
By determining that space locating for breaker to the loss ability of electromagnetic wave signal, can exclude space locating for breaker
The interference for the electromagnetic wave signal that electromagnetic environment obtains test, with accurately true according to the electromagnetic wave signal at breaker preset distance
Determine the ablation degree of breaker.
S130: using the high frequency discharge excited source of Gaussian pulse signal imitation, emulates to the breaker in emulation electromagnetic environment
Model carries out simulation discharge treatment, to emulate breaker arcing process.
In breaker interrupting process, the Igniting pattern essence of electric arc is process of pulse discharge, therefore the arcing of single electric arc
Process can be simulated with Gaussian pulse, the electric arc of different sizes of the amplitude and the equal analog of pulsewidth by changing Gaussian pulse.
As shown in figure 3, the specifically used high frequency discharge excited source of Gaussian pulse signal imitation is to disconnected in emulation electromagnetic environment
The process that road device simulation model carries out simulation discharge treatment is as follows, comprising the following steps:
S131: change the intensity in high frequency discharge excited source during the amplitude analog breaker arcing of Gaussian pulse signal.
Wherein, it is preferable to use Gaussian pulse signal amplitude between 0.6-1Kv, such as 0.7Kv, 0.8Kv or 0.85Kv.
S132: change the electricity of high frequency discharge excited source radiation during the pulsewidth mimic-disconnecting switch arcing of Gaussian pulse signal
Magnetostatic wave signal frequency range.Wherein, it is preferable to use Gaussian pulse pulsewidth between 0.2-0.5ns, such as 0.3ns, 0.35ns or
0.4ns.And
S133: change the quantity in high frequency discharge excited source during the Population number dynamic imitation breaker arcing of Gaussian pulse signal.
Since breaker is repeatedly cut-off, caused contact of breaker ablated surface degree is different.And breaker was cut-off
It will appear the process of high-frequency discharge in journey, i.e., multiple electric arcs occur together in a short time, therefore by changing Gaussian pulse
Quantity is capable of the high-frequency discharge number of mimic-disconnecting switch interrupting process appearance.Wherein it is preferred to which the quantity of pulse is at 10-20
Between, such as 12,15 or 18；In addition, the interval time of each pulse is us rank, such as 5us, 7us or 10us.
S140: during detecting the breaker arcing of emulation, the electromagnetic wave signal at breaker simulation model pre-determined distance
Situation of change.
Specifically, it can detect the electromagnetic wave letter within the scope of case for circuit breaker 150mm to 230mm in the embodiment of the present application
Number, such as electromagnetic wave signal of the acquisition at case for circuit breaker 200mm distance.
By obtaining the structural parameters of breaker, breaker is established according to preset ratio according to the structural parameters of breaker and is imitated
True mode, and the electromagnetic environment parameter of the practical place electromagnetic environment of breaker is obtained, establish the emulation electromagnetism ring where breaker
Border.By breaker in simulation truth and the electromagnetic environment where breaker, it is imitative to can be improved breaker arcing process
Genuine authenticity.And by using the high frequency discharge excited source of Gaussian pulse signal imitation, to the open circuit in emulation electromagnetic environment
Device simulation model carries out simulation discharge treatment, the high-frequency discharge situation during breaker arcing can be accurately emulated, into one
The situation of change of electromagnetic wave signal at step detection breaker simulation model pre-determined distance is broken during breaker open operation
The dynamic/static contact of road device can puncture, therefore change rapidly to generate mutation magnetic field, Jin Er in breakdown immediate current
Electromagnetic wave signal is inspired in space, the situation of change by detecting the electromagnetic wave signal can determine breaker arcing process
In the ablation extent of damage.Breaker arcing process electromagnetic model provided by the present application establishes scheme, can accurately reflect disconnected
The arcing process of road device, and the ablation degree of breaker can be further determined that according to the arcing process, whether judge breaker
Arc extinguishing requirement can be reached, be live detection breaker arc extinguishing performance based theoretical.
In addition, embodiment as one preferred, the method for building up of the breaker arcing process electromagnetic model in Fig. 2 is also wrapped
Include following steps: according to the ablation journey of contact in breaker during the situation of change of electromagnetic wave signal assessment breaker arcing
Degree.
During breaker open operation, if the dynamic/static contact due to breaker punctures, the electric current for puncturing moment is rapid
Variation can generate mutation magnetic field, then inspire electromagnetic wave signal in space, therefore can be quasi- by acquisition electromagnetic wave signal
The really ablation degree of assessment contact, and then can accurately determine whether breaker can reach arc extinguishing requirement.
Specifically, as shown in Figure 4: the above-mentioned touching that breaker during arcing is assessed according to the situation of change of electromagnetic wave signal
Head ablation degree the step of include:
S210: the electromagnetic wave at shell pre-determined distance during judging breaker arcing, apart from breaker simulation model
Whether the waveform of signal changes；If the waveform of electromagnetic wave signal changes, S220 is thened follow the steps；If not becoming
Change, it is determined that breaker is not ablated.Specifically, judge the electromagnetic wave letter at the shell 200mm apart from breaker simulation model
Number waveform whether change.
S220: determining the contact of breaker, there are ablations.
Attached drawing 5 and attached drawing 6 specifically are referred to, when Fig. 5 is that contact of breaker is not ablated, repeatedly applies Gaussian pulse signal
The waveform diagram of obtained electromagnetic wave signal；When Fig. 6 is that contact of breaker is ablated, repeatedly apply the electricity that Gaussian pulse signal obtains
The waveform diagram of magnetostatic wave signal.The high frequency discharge excited source of Gaussian pulse signal imitation is being used, to the open circuit in emulation electromagnetic environment
After device simulation model carries out simulation discharge treatment, if there is no ablation or the not up to default ablations of ablation degree for the contact of breaker
Threshold value, then the waveform of the electromagnetic wave signal at the shell pre-determined distance apart from breaker simulation model is as shown in figure 5, for standard
Sine wave.If the contact of breaker is there are ablation and ablation degree is more than default ablation threshold, apart from breaker simulation model
Shell pre-determined distance at electromagnetic wave signal waveform as shown in fig. 6, contact there are the breaker of ablation, electromagnetic wave signals
Wave belt it is jagged.
Conceived based on same application, establishes system the embodiment of the present application also provides breaker arcing process electromagnetic model
Embodiment, since the corresponding device of the system is the foundation of the breaker arcing process electromagnetic model in the embodiment of the present invention
Method, and the principle that the system solves the problems, such as is similar to method, therefore the implementation of system may refer to the implementation of method, repeats
Place repeats no more.
Fig. 7 is referred to, for a kind of system of establishing of breaker arcing process electromagnetic model provided by the embodiments of the present application
Structural schematic diagram, as shown in fig. 7, the system of establishing of the breaker arcing process electromagnetic model includes:
Structural parameters obtain module 1010, for obtaining the structural parameters of breaker, wherein the structural parameters packet of breaker
Include structure, shape size and the material property of breaker.
Building of Simulation Model module 1020, for establishing breaker emulation by preset ratio according to the structural parameters of breaker
Model.
Environmental parameter obtains module 1030, for obtaining the electromagnetic environment parameter of breaker.
Simulated environment establishes module 1040, for establishing breaker simulation model during arcing according to electromagnetic environment parameter
The emulation electromagnetic environment at place.Wherein, simulated environment establishes module 1040, is specifically used for being determined disconnected according to electromagnetic environment parameter
Loss ability of the space locating for the device of road to electromagnetic wave signal.
Arcing module 1050 is emulated, for using the high frequency discharge excited source of Gaussian pulse signal imitation, to emulation electromagnetism ring
Breaker simulation model in border carries out simulation discharge treatment, to emulate breaker arcing process.
Electromagnetic Wave Detection module 1060, during the breaker arcing for detecting emulation, breaker simulation model it is default
The situation of change of electromagnetic wave signal at distance.
By obtaining the structural parameters of breaker, breaker is established according to preset ratio according to the structural parameters of breaker and is imitated
True mode, and the electromagnetic environment parameter of the practical place electromagnetic environment of breaker is obtained, establish the emulation electromagnetism ring where breaker
Border.By breaker in simulation truth and the electromagnetic environment where breaker, it is imitative to can be improved breaker arcing process
Genuine authenticity.And by using the high frequency discharge excited source of Gaussian pulse signal imitation, to the open circuit in emulation electromagnetic environment
Device simulation model carries out simulation discharge treatment, the high-frequency discharge situation during breaker arcing can be accurately emulated, into one
The situation of change of electromagnetic wave signal at step detection breaker simulation model pre-determined distance is broken during breaker open operation
The dynamic/static contact of road device can puncture, therefore change rapidly to generate mutation magnetic field, Jin Er in breakdown immediate current
Electromagnetic wave signal is inspired in space, the situation of change by detecting the electromagnetic wave signal can determine breaker arcing process
In the ablation extent of damage.Breaker arcing process electromagnetic model provided by the present application establishes scheme, can accurately reflect disconnected
The arcing process of road device, and the ablation degree of breaker can be further determined that according to the arcing process, whether judge breaker
Arc extinguishing requirement can be reached, be live detection breaker arc extinguishing performance based theoretical.
Embodiment as one preferred, as shown in figure 8, breaker arcing process electromagnet mode provided by the embodiments of the present application
Type establishes system other than each construction module shown in Fig. 7, further includes:
Ablation scale evaluation module 1070, during according to the situation of change of electromagnetic wave signal assessment breaker arcing
The ablation degree of contact in breaker.
Wherein, ablation scale evaluation module 1070 specifically includes:
Electromagnetic wave changes judging submodule 1071, for during judging breaker arcing, apart from breaker simulation model
Shell pre-determined distance at the waveform of electromagnetic wave signal whether change.
Ablation determines submodule 1072, if the waveform for electromagnetic wave signal changes, determines the contact of breaker
There are ablations.
During breaker open operation, if the dynamic/static contact due to breaker punctures, the electric current for puncturing moment is rapid
Variation can generate mutation magnetic field, then inspire electromagnetic wave signal in space, therefore can be quasi- by acquisition electromagnetic wave signal
The really ablation degree of assessment contact, and then determine whether breaker can reach arc extinguishing requirement.
Embodiment as one preferred, as shown in figure 9, in the embodiment of the present application, the emulation in embodiment illustrated in fig. 7
Arcing module 1050, comprising:
Strength simulation submodule 1051, for changing the amplitude analog breaker arcing process medium-high frequency of Gaussian pulse signal
The intensity in discharge excitation source；
Frequency range simulation submodule 1052, for changing the pulsewidth mimic-disconnecting switch arcing process medium-high frequency of Gaussian pulse signal
The electromagnetic wave signal frequency range of discharge excitation source radiation；And
Population number dynamic imitation submodule 1053, for changing the Population number dynamic imitation breaker arcing process medium-high frequency of Gaussian pulse signal
The quantity in discharge excitation source.
In the specific implementation, the present invention also provides a kind of computer storage mediums, wherein the computer storage medium can store
There is program, which may include step some or all of in each embodiment of method of calling provided by the invention when executing.'s
Storage medium can be magnetic disk, CD, read-only memory (English: read-only memory, abbreviation: ROM) or deposit at random
Store up memory body (English: random access memory, abbreviation: RAM) etc..
It is required that those skilled in the art can be understood that the technology in the embodiment of the present invention can add by software
The mode of general hardware platform realize.Based on this understanding, the technical solution in the embodiment of the present invention substantially or
Say that the part that contributes to existing technology can be embodied in the form of software products, which can deposit
Storage is in storage medium, such as ROM/RAM, magnetic disk, CD, including some instructions are used so that computer equipment (can be with
It is personal computer, server or the network equipment etc.) execute certain parts of each embodiment of the present invention or embodiment
Method.
Same and similar part may refer to each other between each embodiment in this specification.Implement especially for system
For example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring in embodiment of the method
Explanation.
Invention described above embodiment is not intended to limit the scope of the present invention..
Claims (10)
1. a kind of method for building up of breaker arcing process electromagnetic model characterized by comprising
The structural parameters for obtaining breaker establish breaker emulation mould by preset ratio according to the structural parameters of the breaker
Type, wherein the structural parameters of the breaker include structure, shape size and the material property of the breaker；
The electromagnetic environment parameter for obtaining the breaker establishes the breaker during arcing according to the electromagnetic environment parameter
Emulation electromagnetic environment where simulation model；
Using the high frequency discharge excited source of Gaussian pulse signal imitation, to the breaker simulation model in the emulation electromagnetic environment into
Row simulation discharge treatment, to emulate breaker arcing process；
The variation of electromagnetic wave signal during the breaker arcing of detection emulation, at the breaker simulation model pre-determined distance
Situation.
2. the method for building up of breaker arcing process electromagnetic model according to claim 1, which is characterized in that further include:
According to the ablation journey of contact in the breaker during the situation of change of electromagnetic wave signal assessment breaker arcing
Degree.
3. the method for building up of breaker arcing process electromagnetic model according to claim 2, which is characterized in that the basis
The ablation degree of the contact of the breaker during the situation of change assessment arcing of electromagnetic wave signal, comprising:
During judging breaker arcing, the electromagnetic wave signal at shell pre-determined distance apart from the breaker simulation model
Whether waveform changes；
If the waveform of the electromagnetic wave signal changes, it is determined that there are ablations for the contact of the breaker.
4. the method for building up of breaker arcing process electromagnetic model according to claim 1, which is characterized in that the basis
Electromagnetic environment parameter establishes the emulation electromagnetic environment during arcing where breaker simulation model, comprising:
According to the electromagnetic environment parameter, determine space locating for breaker to the loss ability of electromagnetic wave signal.
5. the method for building up of breaker arcing process electromagnetic model according to claim 1, which is characterized in that the use
The high frequency discharge excited source of Gaussian pulse signal imitation carries out simulation to the breaker simulation model in the emulation electromagnetic environment and puts
Electric treatment, to emulate breaker arcing process, comprising:
Change the intensity in high frequency discharge excited source during breaker arcing described in the amplitude analog of the Gaussian pulse signal；
The pulsewidth for changing the Gaussian pulse signal simulates the electricity of high frequency discharge excited source radiation during the breaker arcing
Magnetostatic wave signal frequency range；And
Change the quantity in high frequency discharge excited source during breaker arcing described in the Population number dynamic imitation of the Gaussian pulse signal.
6. a kind of breaker arcing process electromagnetic model establishes system characterized by comprising
Structural parameters obtain module, for obtaining the structural parameters of breaker, wherein the structural parameters of the breaker include institute
State structure, shape size and the material property of breaker；
Building of Simulation Model module, for establishing breaker emulation mould by preset ratio according to the structural parameters of the breaker
Type；
Environmental parameter obtains module, for obtaining the electromagnetic environment parameter of the breaker；
Simulated environment establishes module, for establishing the breaker simulation model during arcing according to the electromagnetic environment parameter
The emulation electromagnetic environment at place；
Arcing module is emulated, for using the high frequency discharge excited source of Gaussian pulse signal imitation, in the emulation electromagnetic environment
Breaker simulation model carry out simulation discharge treatment, to emulate breaker arcing process；
Electromagnetic Wave Detection module, for detect emulation breaker arcing during, the breaker simulation model pre-determined distance
The situation of change of the electromagnetic wave signal at place.
7. breaker arcing process electromagnetic model according to claim 6 establishes system, which is characterized in that further include:
Ablation scale evaluation module, it is described in the process for assessing breaker arcing according to the situation of change of the electromagnetic wave signal
The ablation degree of contact in breaker.
8. breaker arcing process electromagnetic model according to claim 7 establishes system, which is characterized in that the ablation
Scale evaluation module, comprising:
Electromagnetic wave changes judging submodule, for during judging breaker arcing, apart from the outer of the breaker simulation model
Whether the waveform of the electromagnetic wave signal at shell pre-determined distance changes；
Ablation determines submodule, if the waveform for the electromagnetic wave signal changes, determines the contact of the breaker
There are ablations.
9. breaker arcing process electromagnetic model according to claim 6 establishes system, which is characterized in that the emulation
Environment establishes module, is specifically used for determining space locating for breaker to the damage of electromagnetic wave signal according to the electromagnetic environment parameter
Consume energy power.
10. breaker arcing process electromagnetic model according to claim 6 establishes system, which is characterized in that described imitative
True arcing module, comprising:
Strength simulation submodule, breaker arcing process medium-high frequency described in the amplitude analog for changing the Gaussian pulse signal
The intensity in discharge excitation source；
Frequency range simulation submodule simulates the breaker arcing process medium-high frequency for changing the pulsewidth of the Gaussian pulse signal
The electromagnetic wave signal frequency range of discharge excitation source radiation；And
Population number dynamic imitation submodule, breaker arcing process medium-high frequency described in the Population number dynamic imitation for changing the Gaussian pulse signal
The quantity in discharge excitation source.
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| CN110954646B (en) * | 2019-12-13 | 2022-09-02 | 深圳供电局有限公司 | Method and device for evaluating ablation behavior of contact |
| CN111679181A (en) * | 2020-06-19 | 2020-09-18 | 国网陕西省电力公司电力科学研究院 | Live detection method and device for ablation of high-voltage reactive switching switch contact |
| CN113311321B (en) * | 2021-05-27 | 2023-06-23 | 云南电网有限责任公司电力科学研究院 | Method for detecting three-phase arc extinguishing performance of circuit breaker based on separation algorithm |
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