CN105223440B - A kind of method for building up of electromagnetic immunity test system - Google Patents
A kind of method for building up of electromagnetic immunity test system Download PDFInfo
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- CN105223440B CN105223440B CN201510634245.4A CN201510634245A CN105223440B CN 105223440 B CN105223440 B CN 105223440B CN 201510634245 A CN201510634245 A CN 201510634245A CN 105223440 B CN105223440 B CN 105223440B
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Abstract
The invention discloses a kind of method for building up of electromagnetic immunity test system, the test system includes measuring system, control system, high voltage pulse source and the bounded waveguide transmission line being sequentially connected, and the high voltage pulse source is arranged to two；The method for building up of the test system is：Step 1：Long pulse and short pulse in theoretical electromagnetic Pulsed radiation field, the technical parameter of transient electromagnetic field is determined respectively；Step 2：According to the technical parameter, the parameter setting in progress bounded waveguide transmission line and two high voltage pulse sources；Step 3：Described two high voltage pulse sources are connected with bounded waveguide transmission line respectively；Step 4：Whether the technical parameter deviation of checking actual electromagnetic Pulsed radiation field meets design standard, the present invention can improve the service life and environmental suitability of equipment under test, it is cost-effective, it is high with design precision, the actual reference of systematic parameter is big, can the various experimental situations of flexible configuration, it is practical the characteristics of.
Description
Technical field
The present invention relates to a kind of laser equipment technical field, in particular to a kind of building for electromagnetic immunity test system
Cube method.
Background technology
The interaction change in electric field and magnetic field produces the phenomenon of electromagnetic wave, electromagnetism wave direction air-launched or leakage, is electromagnetism spoke
Penetrate.Electromagnetic radiation is with material existing for a kind of invisible, impalpable specific form.Electrical equipment is operated in transient state and discharged by force
Under occasion, be vulnerable to electromagnetic interference in the process of running, especially, in impulse generating process, can by serious electromagnetic interference,
And then the signal control operations such as the sampling of equipment, feedback, triggering are influenceed, reduce the technical performance index of equipment.
" electromagnetic pollution " has turned into the 5th after atmosphere pollution, water pollution, noxious waste pollution and noise pollution
Big pollution, it directly acts on equipment or human body, is that harm is serious " stealthy killer ".Therefore, electromagnetic radiation is increasingly
By the most attention of countries in the world.
In laboratory conditions, short pulse, long pulse cause the result of electromagnetic interference different to equipment, in order to suppress electromagnetism
The influence to equipment is disturbed, it is necessary to carry out electromagnetic compatibility technology research, skill is provided to improve equipment electromagnetic pulse-resisting interference performance
Art is supported.For this reason, it may be necessary to a set of Transient Electromagnetic immunity experiment system for being used to simulate actual emanations environment is researched and developed, for detecting
The antijamming capability of equipment under test.
The content of the invention
The invention provides a kind of method for building up of electromagnetic immunity test system.
To achieve the above object, the present invention provides following technical scheme：
A kind of method for building up of electromagnetic immunity test system, the test system include be sequentially connected measuring system,
Control system, high voltage pulse source and bounded waveguide transmission line, the high voltage pulse source are arranged to two；
The method for building up of the test system is：
Step 1：Long pulse and short pulse in theoretical electromagnetic Pulsed radiation field, transient electromagnetic field is determined respectively
Technical parameter；
Step 2：According to the technical parameter, the parameter setting in progress bounded waveguide transmission line and two high voltage pulse sources；
Step 3：Described two high voltage pulse sources are connected with bounded waveguide transmission line respectively；
Step 4：Whether the technical parameter deviation of checking actual electromagnetic Pulsed radiation field meets design standard.
Further, the technical parameter in the step 1 includes pulsed field amplitude, pulse width Th, pulse rise time
Tr。
Further, the bounded waveguide transmission line is arranged to wiregrating taper, distributed frame, it include son radiation cable and
Support frame, the sub- radiation cable include wire, absorption resistance R1With strand thick stick.
Further, the parameter of the bounded waveguide transmission line includes characteristic impedance Z, and its establishing method is：The carriage
The height of frame is H, and the width of the bounded waveguide transmission line is W, then the bounded waveguide transmission line characteristic impedance
Further, the height H of the support frame is 3-4 times of pilot region height, and the pilot region is arranged to
0.5m*0.5m*0.5m, the width W of the bounded waveguide transmission line are arranged to 2.3-2.6m.
Further, the absorption resistance R1It is arranged to solid resistance, and the absorption resistance R1Equal to bounded waveguide transmission
The characteristic impedance Z of line.
Further, the high voltage pulse source includes HVDC charge power supply, Marx generators, the Marx generators bag
Include shell body, capacitor Cm, gas gap switch and discharge resistance R2, the parameter setting in the high voltage pulse source includes capacitance
C, inductance value L and pulse voltage amplitude, the pulse voltage amplitude match with the height H of pulsed field amplitude, support frame, institute
State discharge resistance R2With absorption resistance R1It is equal.
Further, the capacitor CmCapacitance C establishing method be：
(1) inductance parameters of whole discharge loop are ignored, the capacitor C being simplifiedmDischarge equivalent circuit；
(2) equivalent circuit meets single order homogeneous differential equation：
(3) before gas gap switch motion, capacitor CmInitial voltage be U0, try to achieve the differential equation in step (2)
Solution：
(4) discharge resistance R2On voltage be UR2, then
(5)UR2Peak value be U0, work as UR2=U0When/2, T=Th, and Th=0.693R2C。
Further, according to the technical parameter determined in step 1, to capacitor CmInductance value L carry out parameter setting, electricity
Inductance value L and pulse rise time Tr, discharge resistance R2Matching, and Tr=2.2L/R2。
Further, in the step 4, whether the technical parameter deviation of checking actual electromagnetic Pulsed radiation field meets design
The method of standard is：
(1) PSPICE circuit simulating softwares are used, establish the whole circuit simulation model of the Marx generators；
(2) load resistance R is obtained using the measuring systemfThe voltage at place, voltage oscillogram is drawn, wherein, it is described negative
Carry resistance RfIt is equal with characteristic impedance Z；
(3) by the voltage oscillogram, pulse width T ' is obtainedh, pulse rise time T 'r；
(4) T ' is judgedh、T′rWhether T is located at respectivelyh、Tr± 10% in the range of.
The beneficial effects of the invention are as follows：
1st, the present invention is directed to the electromagnetic radiation of special laboratory, establishes radiation long pulsewidth, short pulse duration transient electromagnetic field
Electromagnetic immunity test system, the antijamming capability of equipment under test can be fully detected, help to carry out electricity to equipment under test
Magnetic compatible design, improve equipment under test performance, improve the service life and environmental suitability of equipment under test, it is cost-effective.
2nd, two high voltage pulse sources in the present invention, can share a set of bounded waveguide transmission line, also, bounded waveguide transmission
Line is arranged to wiregrating taper, can effectively reduce the space of test system occupancy, saves equipment expenses.
3rd, the actual techniques state modulator of test system in the range of ± the 10% of design standard parameter, helps in the present invention
Precision is designed in improving, improves the actual reference of systematic parameter.
4th, absorption resistance of the invention is arranged to solid resistance, has the characteristics of resistance is stable.
5th, middle arteries of the present invention are leapt high the adjustable voltage of potential source output amplitude, and be adapted to impulse electric field changes in amplitude will
Ask, can the various experimental situations of flexible configuration, it is practical.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the structural representation of the Marx generators of the present invention；
Fig. 3 is the capacitor C of the present inventionmDischarge equivalent circuit；
Fig. 4 is the whole circuit simulation model of the Marx generators of the present invention；
Fig. 5 is the load resistance R of the present inventionfA kind of voltage oscillogram at place；
Fig. 6 is the load resistance R of the present inventionfAnother voltage oscillogram at place.
In accompanying drawing：Measuring system 1, control system 2, high voltage pulse source 3, bounded waveguide transmission line 4, support frame 5, high pressure
DC charging power supply 6, Marx generators 7, twist thick stick 8, absorption resistance R19。
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
Embodiment one：
As shown in Figure 1-2, the test system includes the measuring system 1, control system 2, high voltage pulse source 3 being sequentially connected
With bounded waveguide transmission line 4, the high voltage pulse source 3 is arranged to two.
The adjustable voltage of the output amplitude of high voltage pulse source 3, it is adapted to the requirement of electromagnetic field magnitude change, Neng Gouling
Living to configure various experimental situations, practical, the high voltage pulse source 3 includes HVDC charge power supply 6, Marx generators 7,
The Marx generators 7 include shell body, capacitor Cm, gas gap switch and discharge resistance R2, the discharge resistance R2With suction
Receive resistance R1It is equal.
The control system 2 mainly has electrical control to control two aspect functions with gas circuit, and the electrical control acts on height
DC charging power supply 6 is pressed, realizes that combined floodgate, buck and its speed in experimentation, separating brake ground connection, corresponding charging voltage are set
And voltage digital is shown, catastrophic failure ground protection measure etc.；The gas circuit control is mainly used in realizing gas gap switch
Isolation and conducting.
The bounded waveguide transmission line 4 is arranged to wiregrating taper, distributed frame, and it includes son radiation cable and carriage
Frame 5, the sub- radiation cable include wire, absorption resistance R19 and thick stick 8 is twisted, row absorption resistance R commonly used in the trade19 be liquid resistance,
Its resistor fluid easily lumps, and causes its resistance value unstable, it is necessary to often change, and increases cost input, will be absorbed in the present invention
Resistance R19 are arranged to solid resistance, have the characteristics of resistance is stable, and the thick stick 8 that twists is used to adjust the flat of bounded waveguide transmission line 4
Whole degree, the spacing of the sub- radiation cable are arranged to 100-300mm, and the high voltage pulse source 3 produces high-voltage pulse signal, excitation
Bounded waveguide transmission line 4 forms transient electromagnetic pulse field.
In the absorption resistance R1Under the conditions of the characteristic impedance Z of bounded waveguide transmission line 4, electromagnetic wave will be absorbed
Resistance R1It 9 non reflective absorptions, otherwise will be reflected in impedance discontinuities, cause the distortion of electromagnetic field.
The method for building up of the test system is：
Step 1：In laboratory conditions, the full-size of equipment is 0.5m*0.5m*0.5m, therefore, radiation field experiment
Region is 0.5m*0.5m*0.5m, the pulse pattern for the Electromagnetic pulse radiating field being subject to according to equipment, in laboratory conditions, institute
State equipment mainly to be disturbed by short pulse and long pulse, the pulsewidth T of the long pulsehFor 100-900 μ s, the short pulse
Pulsewidth ThFor 100-900ns, the present invention is directed to the electromagnetic radiation in laboratory, establishes the long pulsewidth of radiation, short pulse duration Transient Electromagnetic
The electromagnetic immunity test system of field, can fully detect the antijamming capability of equipment under test, help to enter equipment under test
Row EMC Design, improve equipment under test performance, improve the service life and environmental suitability of equipment under test, it is cost-effective,
Determine the technical parameter of transient electromagnetic field：Pulsed field amplitude, pulse width Th, pulse rise time Tr。
Step 2：According to the technical parameter, bounded waveguide transmission line 4, the parameter setting in high voltage pulse source 3, institute are carried out
Stating the parameter setting in high voltage pulse source 3 includes capacitor CmCapacitance C, capacitor CmInductance value L and pulse voltage amplitude；
1st, the parameter of the bounded waveguide transmission line 4 includes characteristic impedance Z, and its establishing method is：The support frame 5
Highly it is H, the width of the bounded waveguide transmission line 4 is W, then the bounded waveguide transmission line 4 characteristic impedance
Wherein, the height H of the support frame 5 is 3-4 times of pilot region height, the width of the bounded waveguide transmission line
Degree W is arranged to 2.3-2.6m；
2nd, the capacitor CmCapacitance C establishing method be：
(1) inductance parameters of whole discharge loop are ignored, the capacitor C being simplifiedmDischarge equivalent circuit；
(2) equivalent circuit meets single order homogeneous differential equation：
(3) before gas gap switch motion, capacitor CmInitial voltage be U0, try to achieve the solution of the differential equation：
(4) discharge resistance R2On voltage be UR2, then
(5)UR2Peak value be U0, work as UR2=U0When/2, T=Th, and Th=0.693R2C；
3rd, the capacitor CmInductance value L establishing method be：
According to pulse rise time TrWith discharge resistance R2, draw Tr=2.2L/R2；
4th, the pulse voltage amplitude matches with the height H of pulsed field amplitude, support frame, i.e., pulse voltage amplitude=
The height H of pulsed field amplitude * support frames.
Step 3：Described two high voltage pulse sources are connected with bounded waveguide transmission line respectively, realize the change of pulse pattern
Change, establish long pulse and the electromagnetic radiation field of short pulse respectively.
Step 4：Whether the technical parameter deviation of checking actual electromagnetic Pulsed radiation field meets design standard；
(1) PSPICE circuit simulating softwares are used, establish the whole circuit simulation model of the Marx generators 7；
(2) load resistance R is obtained using the measuring system 1fThe voltage at place, voltage oscillogram is drawn, wherein, it is described negative
It is equal with characteristic impedance Z to carry resistance Rf；
(3) by the voltage oscillogram, pulse width T ' is obtainedh, pulse rise time T 'r；
(4) T ' is judgedh、T′rWhether T is located at respectivelyh、Tr± 10% in the range of.
The actual techniques state modulator of test system contributes in the range of ± the 10% of design standard parameter in the present invention
Design precision is improved, improves the actual reference of systematic parameter.
Embodiment two：
A kind of method for building up of electromagnetic immunity test system according to embodiment one, simulation God Light-III main frame dresses
The strong discharge environment of transient state put, chooses 9m*6m*3.6m laboratory, according to the full-size of tested testing equipment, determines spoke
It is 0.5m*0.5m*0.5m to penetrate a pilot region.
The Electromagnetic pulse radiating field of the God Light-III host apparatus has two types：
(1) 20,000 volts of discharge voltage, TrFor 1 microsecond, ThFor 600 microseconds, output pulsed field amplitude be 100V/m~
1000V/m, pulse voltage amplitude are 200V~15KV；
(2) 20,000 volts of discharge voltage, TrLess than 20 nanoseconds, ThFor 200 nanoseconds, output pulsed field amplitude be 1000V/m~
8000V/m, pulse voltage amplitude are 200V~15KV.
The bounded waveguide transmission line 4 is arranged to wiregrating taper, distributed frame, is advantageous to the direct transmission of high frequency waves,
Its taper is arranged to 30 °, and its height is about 3-4 times of pilot region height, therefore, preferably, the bounded waveguide transmission
The length of line 4 is 3.6m, and its height is 1.8m, i.e., the described height H=1.8m of support frame 5, in order to improve output impulse electric field
The uniformity of amplitude, under conditions of pilot region is 0.5m*0.5m*0.5m, preferably, the bounded waveguide transmission line 4
Width W=2.5m, also, it is corresponding sub- radiation cable is arranged to 12, the spacing of adjacent sub- radiation cable is set respectively
For 100mm, 150mm, 250mm, 250mm, 250mm, 260mm, 250mm, 250mm, 250mm, 150mm, 100mm.
According to the characteristic impedance of the bounded waveguide transmission line 4Draw spy
Property the Ω of impedance Z=107.9, in addition, inventor considers theory, the approximation of formula of test system institute foundation, system testing
Condition, system device therefor etc. consideration is not comprehensive, causes test system certain error to be present, and the error is set
For ± (3-5) %, therefore, absorption resistance R is chosen1=110 Ω, discharge resistance R2=110 Ω, load resistance Rf=110 Ω.
Ignore the inductance parameters of whole discharge loop, the capacitor C being simplifiedmDischarge equivalent circuit, as shown in Figure 3：
CmThe electric capacity established for Marx generators 7, initial voltage 20kV；
Switch1 switchs for gas gap, and breakdown voltage is arranged to 18kV, and breakdown time is arranged to 15ns；
R2For discharge resistance, its resistance is 110 Ω.
Equivalent circuit meets single order homogeneous differential equation：Before action, capacitor
CmInitial voltage be U0, try to achieve the solution of the differential equation：Discharge resistance R2On voltage be UR2, thenUR2Peak value be U0, work as UR2=U0When/2, T=Th, and Th=0.693R2C。
Work as ThDuring=200ns, thenWork as ThDuring=600 μ s, then
According to Tr=2.2L/R2, work as TrDuring=20ns, then L=1000nH；Work as TrDuring=1 μ s, then L=50 μ H.
Using PSPICE circuit simulating softwares, the whole circuit simulation model of the Marx generators 7 is established, as shown in Figure 4：
C is the electric capacity that Marx generators 7 are established, and initial voltage 20kV, capacitance C are respectively 2.5nF, 8 μ F；
L is the inductance that Marx generators 7 are established, and inductance value L is respectively 1000nH, 50 μ H；
R is the internal resistance of Marx generators 7, R=0.001 Ω, is ignored；
Switch2 is closure switch, and breakdown voltage is arranged to 18kV, and breakdown time is arranged to 10ns；
Switch3 is Self-breaking switch, and inductance value is arranged to 20nH, and breakdown voltage is arranged to 18kV, and breakdown time is set
For 15ns；
CgFor Marx generators 7, stray capacitance, Cg=0.01pF (ignore) over the ground；
RgFor the earth resistance of Marx generators 7, Rg=5k Ω；
RfFor 110 Ω load resistance.
As shown in figure 4, the high voltage pulse source 3 and bounded waveguide transmission line 4 are respectively turned on, to change pulse condition, i.e.,
The output end of the HVDC charge power supply 6 is connected with the input of Marx generators 7 of required output pulse parameter,
Load resistance R is obtained using the measuring system 1fThe voltage at place, voltage oscillogram is drawn, as shown in Figure 5, Figure 6.
As shown in figure 5, T 'h=610 μ s, T 'r=1.1 μ s, and T 'h、T′rIt is located at T respectivelyh、Tr± 10% in the range of；
As shown in fig. 6, and obtain T 'h=193 μ s, T 'r=19 μ s, and T 'h、T′rIt is located at T respectivelyh、Tr± 10% in the range of.
As can be seen here, the test system can really simulate the strong discharge environment of transient state of God Light-III host apparatus,
It is high to design precision, the actual reference of systematic parameter is big.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (2)
1. a kind of method for building up of electromagnetic immunity test system, it is characterised in that the test system includes what is be sequentially connected
Measuring system, control system, high voltage pulse source and bounded waveguide transmission line, the high voltage pulse source are arranged to two, described to have
Boundary's waveguide transmission line is arranged to wiregrating taper, distributed frame, and it includes son radiation cable and support frame, the sub- radiation
Cable includes wire, absorption resistance R1With strand thick stick；
The method for building up of the test system is：
Step 1：Long pulse and short pulse in theoretical electromagnetic Pulsed radiation field, the technology of transient electromagnetic field is determined respectively
Parameter, the technical parameter include pulsed field amplitude, pulse width Th, pulse rise time Tr；
Step 2：According to the technical parameter, the parameter setting in progress bounded waveguide transmission line and two high voltage pulse sources；
The parameter of the bounded waveguide transmission line includes characteristic impedance Z, and its establishing method is：The height of the support frame is H, described
The width of bounded waveguide transmission line is W, then the bounded waveguide transmission line characteristic impedance
The height H of the support frame is 3-4 times of pilot region height, and the pilot region is arranged to 0.5m*0.5m*0.5m, institute
The width W for stating bounded waveguide transmission line is arranged to 2.3-2.6m, the absorption resistance R1It is arranged to solid resistance, and the suction
Receive resistance R1Equal to the characteristic impedance Z of bounded waveguide transmission line；
The high voltage pulse source includes HVDC charge power supply, Marx generators, and the Marx generators include shell body, electricity
Container Cm, gas gap switch and discharge resistance R2, the parameter setting in the high voltage pulse source include capacitance C, inductance value L and
Pulse voltage amplitude, the pulse voltage amplitude match with the height H of pulsed field amplitude, support frame, the discharge resistance
R2With absorption resistance R1It is equal, according to the technical parameter determined in step 1, to capacitor CmInductance value L carry out parameter setting,
Inductance value L and pulse rise time Tr, discharge resistance R2Matching, and Tr=2.2L/R2, the capacitor CmCapacitance C set
The method of determining is：
(1) inductance parameters of whole discharge loop are ignored, the capacitor C being simplifiedmDischarge equivalent circuit；
(2) equivalent circuit meets single order homogeneous differential equation：
(3) before gas gap switch motion, capacitor CmInitial voltage be U0, try to achieve the solution of the differential equation in step (2)：
(4) discharge resistance R2On voltage be UR2, then
(5)UR2Peak value be U0, work as UR2=U0When/2, T=Th, and Th=0.693R2C；
Step 3：Described two high voltage pulse sources are connected with bounded waveguide transmission line respectively；
Step 4：Whether the technical parameter deviation of checking actual electromagnetic Pulsed radiation field meets design standard.
A kind of 2. method for building up of electromagnetic immunity test system according to claim 1, it is characterised in that the step
In four, whether the technical parameter deviation of checking actual electromagnetic Pulsed radiation field, which meets the method for design standard, is：
(1) PSPICE circuit simulating softwares are used, establish the whole circuit simulation model of the Marx generators；
(2) load resistance R is obtained using the measuring systemfThe voltage at place, voltage oscillogram is drawn, wherein, the load resistance
RfIt is equal with characteristic impedance Z；
(3) by the voltage oscillogram, pulse width T ' is obtainedh, pulse rise time T 'r；
(4) T ' is judgedh、T′rWhether T is located at respectivelyh、Tr± 10% in the range of.
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| CN207853860U (en) * | 2017-09-08 | 2018-09-11 | 中国人民解放军61489部队 | A kind of simulator of fast rising edge broad pulse strong electric field environment |
| CN109738730B (en) * | 2019-01-22 | 2021-01-12 | 中国人民解放军陆军工程大学 | Multi-source strong-field electromagnetic radiation effect prediction method and device |
| CN111323667B (en) * | 2020-03-23 | 2021-08-13 | 清华大学 | Bounded wave simulator with three different electric field areas |
| CN114720739B (en) * | 2022-05-23 | 2022-08-23 | 北京芯可鉴科技有限公司 | Method and system for determining transmission line size and pulsed electric field generator |
| CN116298653B (en) * | 2023-05-24 | 2023-08-29 | 北京智芯微电子科技有限公司 | Transient electromagnetic interference injection device, transient electromagnetic interference test system and method |
| CN117572853B (en) * | 2024-01-17 | 2024-03-15 | 中国人民解放军陆军装甲兵学院 | Magnetic field controller performance test analysis management system |
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| CN103135007A (en) * | 2011-12-02 | 2013-06-05 | 鸿富锦精密工业（深圳）有限公司 | Test equipment for electromagnetic immunity to interference |
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| CN201697984U (en) * | 2010-06-09 | 2011-01-05 | 英业达股份有限公司 | Electromagnetic immunity testing device |
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| US5311116A (en) * | 1992-04-02 | 1994-05-10 | Electronic Development, Inc. | Multi-channel electromagnetically transparent voltage waveform monitor link |
| CN103135007A (en) * | 2011-12-02 | 2013-06-05 | 鸿富锦精密工业（深圳）有限公司 | Test equipment for electromagnetic immunity to interference |
| CN103457577A (en) * | 2013-07-04 | 2013-12-18 | 陕西海泰电子有限责任公司 | Nanosecond high-voltage pulse source, Marx generator and circuit simulation model of Marx generator |
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| Title |
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Inventor after: Wang Lingfang Inventor after: Guo Liangfu Inventor after: Chen Dehuai Inventor after: Dang Zhao Inventor after: Tang Ling Inventor after: Huang Jianjun Inventor after: Chen Ji Inventor after: Wang Chao Inventor after: Li Kehong Inventor after: Qi Zhen Inventor after: Lai Guiyou Inventor before: Wang Lingfang Inventor before: Dang Zhao Inventor before: Tang Ling Inventor before: Huang Jianjun Inventor before: Chen Ji Inventor before: Wang Chao Inventor before: Li Kehong |
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Granted publication date: 20180112 Termination date: 20180930 |