CN204154766U - The many wave forms impact generators of a kind of 20 pulse - Google Patents
The many wave forms impact generators of a kind of 20 pulse Download PDFInfo
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- CN204154766U CN204154766U CN201420610371.7U CN201420610371U CN204154766U CN 204154766 U CN204154766 U CN 204154766U CN 201420610371 U CN201420610371 U CN 201420610371U CN 204154766 U CN204154766 U CN 204154766U
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Abstract
The many wave forms impact generators of a kind of 20 pulse, comprise transformer charging device, 20 body capacitive energy storage devices, the 20 anti-electric ball gaps in tunnel, 20 cover harmonic device and test product casees; Described transformer charging device, described 20 body capacitive energy storage devices, described 20 tunnel anti-electric ball gaps are connected successively with described test product case; Described transformer charging device and described 20 body capacitive energy storage devices are all connected to described 20 cover harmonic devices; Be arranged in parallel between described 20 body capacitive energy storage devices, be arranged in parallel between the described 20 anti-electric ball gaps in tunnel, be arranged in parallel between described 20 cover harmonic devices; Described test product case ground connection, described 20 cover harmonic devices are connected on the ground wire of described test product case.The utility model launch as surprise attack quantity at 1 ~ 20, can realize multiple higher voltage electric discharge with sequential controllable precise.
Description
Technical field
The utility model relates to signal generator technical field, especially relates to the many wave forms impact generators of a kind of 20 pulse.
Background technology
Observation data shows the whole world thunderbolt more than 1,200,000,000 times every year.Each Lightning Process comprises one or many heavy-current discharge process, if lightning stops, then for singly to launch a surprise attack electric discharge, otherwise for launch a surprise attack electric discharge more after electric discharge first.
Thunder observation statistics return stroke times representative value is 3-4, can reach 26 at most.In most of area, launch a surprise attack the principal mode that electric discharge is thunder discharge more.Interval between launch aing surprise attack is from tens of μ s to several ms, and representative value is 50 μ s, and maximal value is 125 μ s.
Current laboratory thunder and lightning generation equipment is commonly singly launch as surprise attack thunder and lightning equipment, as electric power adopts with 8/20 μ s and 4/10 μ s, the 8/20 μ s that low pressure lightning protection adopts and 10/350 μ s generating means, what this kind equipment only can carry out single sequential singly launch as surprise attack thunder and lighting process simulation, cannot meet the high request to Lightning State and thunder and lightning sequential under complex environment.
External also had heavy lesson and successful experience in this respect, and as suffered twice thunderbolt before the transmitting of No. 11, Apollo, spacefarer's brake hard just avoids the generation of catastrophic effect.The aerospace craft such as satellite and aircraft is struck by lightning repeatly, also shows the limitation of existing thunder and lightning generating means and measuring technology.Therefore the seventies in last century, the theory that thunder and lightning launch aed surprise attack by single sequential list has just been abandoned by NASA, have employed four and launch as surprise attack lightning models.It four is launch aed surprise attack thunder and lightning waveform and comprises two and launch a surprise attack fast, a long-time discharge process and a short counterattack process.Practice shows, employing is launch aed surprise attack lightning models more and launch aed surprise attack thunder and lighting process more close to true discharge process than singly, advantageously in research and the progress of Lightning Prevention Technique.
So far, at the single sequential monopulse thunder and lightning test platform that civil area still adopts, the demand of lightning protection industry development can not more and more be met both at home and abroad.But recently more than ten years artificial lightning monitoring and the result of artificially triggered lightning show, actual thunderbolt is repeatedly launch aed surprise attack, the multiple timings discharge process recurred.Be characterized in that initial thunder discharge energy is large, follow-up counterattack Process Energy is less and even i.e. thunder discharge can be considered that multiple-pulse launch as surprise attack process.
Utility model content
The purpose of this utility model is to design a kind of novel many wave forms impact generators of 20 pulse, solves the problem.
To achieve these goals, the technical solution adopted in the utility model is as follows:
The many wave forms impact generators of a kind of 20 pulse, comprise transformer charging device, 20 body capacitive energy storage devices, the 20 anti-electric ball gaps in tunnel, 20 cover harmonic device and test product casees;
Described transformer charging device, described 20 body capacitive energy storage devices, described 20 tunnel anti-electric ball gaps are connected successively with described test product case; Described transformer charging device and described 20 body capacitive energy storage devices are all connected to described 20 cover harmonic devices; Be arranged in parallel between described 20 body capacitive energy storage devices, be arranged in parallel between the described 20 anti-electric ball gaps in tunnel, be arranged in parallel between described 20 cover harmonic devices;
Described test product case ground connection, described 20 cover harmonic devices are connected on the ground wire of described test product case.
Also comprise automatic control survey analytic system, described transformer charging device, described 20 tunnel anti-electric ball gaps are connected described automatic control survey analytic system respectively with described test product case.
The many wave forms impact generators of described 20 pulse adopt impulsive discharge typical loop in physical construction layout, Capacitor banks with the public center of circle, fan-shaped array.。
The described 20 anti-electric ball gaps in tunnel all adopt photoelectric displacement scrambler.
Also comprise electric capacity, often organize on described electric capacity and increase a charging resistor.
Each ball discharge gap correspondence in described 20 tunnel anti-electric ball gaps arranges a single motor.
The blank of domestic same device has not only been filled up in the research that the utility model studies 20 pulse many waveforms Lightning Electromagnetic Pulse generation systems and measuring technology, improves and the test platform of advanced person for shocking preventing technology research provides.20 pulse many waveforms Lightning Electromagnetic Pulse generation systems, can export following six kinds of waveforms:
1) 20 pulse 8/20us dash current: 40kA;
2) 20 pulse 2.6/40us dash current: 10kA;
3) single 8/20us big current: 150kA;
4) single 10/350us dash current: 25kA;
5) composite wave: 20kV/10kA;
6) surge voltage: 20kV;
Launch a surprise attack generation systems with sequential more and must solve same sequential control and multichannel discharge technology, 20 passage high-speed data acquisition, launch a surprise attack wave numerics reconstruction, discharge process energy balane, thunder and lighting process energy distribution and the gordian technique such as analysis, thunderstorm electricity protective device test more.Wherein multiple timings trigging control is difficult point and emphasis.
The intensity of general electronic control signal is 5V, and signalc threshold is generally at about 2V.Under this cover system is operated in the intense electromagnetic environment of strong thunder discharge process generation, electromagnetic interference strength is at tens of volt/m.In less space, realizing transmission and the control of electronic control signal, realize the reliable control of signal in extremely strong electromagnetic environment, is the key of generation systems research.
1) critical piece
Transformer charging device, 20 body capacitive energy storage devices, 20 road ball discharge gaps, 20 cover harmonic devices, test product case, automatic Measurement and analysis test macro
2) schematic diagram (containing caption)
Launch a surprise attack generation systems with sequential more and must solve same sequential control and multichannel discharge technology, 20 passage high-speed data acquisition, launch a surprise attack wave numerics reconstruction, discharge process energy balane, thunder and lighting process energy distribution and the gordian technique such as analysis, thunderstorm electricity protective device test more.Wherein multiple timings controls is difficult point and emphasis.
The intensity of general electronic control signal is 5V, and signalc threshold is generally at about 2V.Under this cover system is operated in the intense electromagnetic environment of strong thunder discharge process generation, electromagnetic interference strength is at tens of volt/m.In less space, realizing transmission and the control of electronic control signal, realize the reliable control of signal in extremely strong electromagnetic environment, is the key of generation systems research.
What first will solve is the normal work of system in electromagnetic transients environment, must analyze the frequency spectrum and distribution of launch aing surprise attack thunder and lighting process more, avoids control signal and thunder discharge pulsed operation in unified frequency range.Launch a surprise attack due to multiple timings and change sequential and there is multiple combination, be difficult to the frequency range that Accurate Determining is determined.Therefore creatively propose the method adopting Time-sharing control in Electronic Control, launch a surprise attack sequential for difference, change gating pulse timing_delay estimation pattern, avoid control signal to receive interference.
The electric discharge of high voltage multichannel adopts pole steep-sided pulse generator, exports the high voltage trigger pip that the rise time is hundred ns levels, triggering discharges electrode.
Launch a surprise attack generation systems with sequential more and must rely on more advanced measuring system and expert software system, can enough play its test function.In generation systems design and establishing process, adopt intelligentized design, the synchronous expert analyzing system set up based on energy balane and distribution, for follow-up test platform provides powerful soft environment.
Generation systems, by basing oneself upon on the basis of the two-way electric discharge generation systems successfully carrying out testing, improves further, uses Industrial Engineering design philosophy, professional testing agency, seminar of colleges and universities and professional development & production enterprise are organically combined.
Electrical principle and structural design
The principle of impulse current generator comprises rectification charging power supply and impulsive discharge loop two parts.The schematic diagram of impulse current generator is shown in right figure.
In figure, C is the total capacitance value of many shnt capacitors, L and R is the inductance and the resistance value that comprise capacitor, loop line, shunt, sphere gap and test specimen, sometimes also comprises to adjust the inductance and resistance that current waveform adds.Shunt S is used to measure the electric current flowing through test specimen, and voltage divider PD is used to measure the voltage on test specimen.The signal feeding oscillograph taken out from shunt and voltage divider is measured.
The action principle of multichannel impulse current generator is substantially identical with single channel lightning impulse current generator.Power source charges is rectified to voltage U at long time inner capacitor group C
0then send a trigger pulse to three electrode gap G, G is punctured, Capacitor banks C is obtained fault offset to test specimen at short notice, makes test specimen obtain very large power.In order to obtain very large dash current amplitude and steepness, the electro-induction of impulse current generator discharge loop is little as much as possible.
Therefore in physical construction layout, adopt impulsive discharge typical loop, Capacitor banks is with the public center of circle, and fan-shaped array, to reach all discharge loop optimal discharge effects.
Every road electric discharge device can independent controlled discharge sequential, also can independently test.
Multichannel lightning impulse current Parallel opertation, can export higher magnitude, and 20 tunnels are in parallel, can reach more than 150kA.
3) logical relation (transformer charging device, 20 body capacitive energy storage devices, 20 road ball discharge gaps, 20 cover harmonic devices, test product case, automatic control survey analytic system) of caption content
4) logical relation: be first fixed in test product case by DUT (test product to be measured) according to requirement of experiment, checks Pass Test condition.When starting to test, opening power, transformer charging device charges to 20 body capacitive energy storage devices, charging in intervals and charging voltage can be arranged by the touch-screen in advance in the Survey control analytic system from exploitation, after charging voltage reaches setting value, automatically trigger through triggering system device, 20 body capacitive energy storage devices just can be passed through 20 cover harmonic devices, export waveform needed for establishing criteria by 20 road ball discharge gaps.The Measurement and analysis report of experimental result all can obtain in automatic control survey analytic system.
One, main innovate point:
1) the many waveform generators of 20 pulse, time delay electric discharge is asynchronous, addition of waveforms, and time delay is abnormal; Solution: the function of shielding increasing pulse amplifier;
2) 20 ball discharge gaps of the many waveform generators of 20 pulse, conventional dash current equipment only has a ball discharge gap, because many ball discharges gap of 20 pulsing units, sometimes ball discharge gap Adjustment precision is inadequate, triggering discharges is unstable, partial discharge ball-gap discharge during electric discharge, a part of ball discharge gap is not discharged;
Solution: adopt photoelectric displacement scrambler, change original linear potentiometer;
3) the many waveform generators of 20 pulse have 64 wave regulating resistors, and quantity is many, can produce electric discharge each other when test, cause the Wave data that will realize to be forbidden.
Solution: the size of adjustment wave regulating resistor, to increase insulation distance;
4) the many waveform generators of 20 pulse are in charging process, and ball discharge gap, suddenly from putting, produces instantaneous large-current, destroys test product
Solution: often organizing an increase charging resistor on electric capacity;
5) the many waveform generator tests of 20 pulse, arrange delay time partially long, waveform presents downtrending, and actual current does not change
Solution: analyzing reason is measuring coil magnetic saturation, changes high-capacity coil and meets test demand;
6) adjustment of 20 pulse many waveform generators Electric Machine Control, two ball discharge gaps, causes two ball discharge gaps not carry out independent fine setting, produces and triggers instability
Solution: increase by 10 motors, single motor correspondence controls single ball discharge gap;
The beneficial effects of the utility model can be summarized as follows:
The utility model the key technical indexes aims at international pioneering or leading in the world, and maximum output number of pulses and amplitude belong to largest domestic, leading in the world.Launch a surprise attack quantity at 1 ~ 20, what foreign literature can be looked into launch as surprise attack at most quantity is 4.20 pulsed discharge control technologys are pioneering at home and abroad, plug a gap.
Control Technology of Discharge is launch aed surprise attack in the utility model research more, exploitation Microsecond grade electronic delay control technology, and extremely steep high voltage pulse amplifier and fibre-optic transmission system (FOTS), realize multiple higher voltage electric discharge with sequential controllable precise.Research and development high-speed figure measuring system, realizes launch aing surprise attack waveform reconstruction, energy balane and numerical simulation expert system more.Singlely in the different lightning stroke process of study emphasis launch a surprise attack and launch a surprise attack more, with sequential and become sequential, positive polarity and negative polarity launch a surprise attack between energy and effect study.
The utility model by the research and development of 20 pulse many waveforms thunder and lightning generation systems, controls of multiloop discharge lag can be obtained, Multi-path synchronous high speed measuring technique, positive-negative polarity launch a surprise attack energy hole more, single and launch a surprise attack the effect study that is struck by lightning more, electronic equipment launch aing surprise attack the multinomial achievements in research such as the Electro Magnetic Compatibility of lower system, the reliability of lightning-protected product under launch aing surprise attack, failure analysis more more.
The utility model carries out lightning-protected product test and relation technological researching, for the exploitation of lightning protection new technology and Protection Product provides scientific basis, improves the ability of China's defence Lightning Disaster.
Accompanying drawing explanation
Fig. 1 is 20 pulse many wave forms impact generators equipment drawings;
Fig. 2 is 20 pulse many wave forms impact generators equipment stereographic maps;
Fig. 3 is 20 pulse many wave forms impact generators principle sketches;
Fig. 4 is 20 pulse many wave forms impact generators principle logical diagrams.
Embodiment
The technical matters solved to make the utility model, technical scheme and beneficial effect are clearly understood, below in conjunction with drawings and Examples, are further elaborated to the utility model.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The many wave forms impact generators of one 20 pulse as shown in Figures 1 to 4, comprise transformer charging device, 20 body capacitive energy storage devices, the 20 anti-electric ball gaps in tunnel, 20 cover harmonic device and test product casees; Described transformer charging device, described 20 body capacitive energy storage devices, described 20 tunnel anti-electric ball gaps are connected successively with described test product case; Described transformer charging device and described 20 body capacitive energy storage devices are all connected to described 20 cover harmonic devices; Be arranged in parallel between described 20 body capacitive energy storage devices, be arranged in parallel between the described 20 anti-electric ball gaps in tunnel, be arranged in parallel between described 20 cover harmonic devices; Described test product case ground connection, described 20 cover harmonic devices are connected on the ground wire of described test product case.
In the embodiment be more preferably, the many wave forms impact generators of described 20 pulse also comprise automatic control survey analytic system, and described transformer charging device, described 20 tunnel anti-electric ball gaps are connected described automatic control survey analytic system respectively with described test product case.
In the embodiment be more preferably, the many wave forms impact generators of described 20 pulse adopt impulsive discharge typical loop in physical construction layout, Capacitor banks with the public center of circle, fan-shaped array.
In the embodiment be more preferably, the described 20 anti-electric ball gaps in tunnel all adopt photoelectric displacement scrambler.
In the embodiment be more preferably, the many wave forms impact generators of described 20 pulse also comprise electric capacity, often organize on described electric capacity and increase a charging resistor.
In the embodiment be more preferably, each ball discharge gap correspondence in described 20 tunnel anti-electric ball gaps arranges a single motor.
In certain specific embodiment:
The alphabet that 6 kinds of test waveforms and operating duty cycle test relate to is as follows: wherein current: electric current, T1: lightning wave wave head time, T2: lightning wave wave rear time, IpMax: dash current peak value, IpMin: dash current minimum value, K: negative peak value, TimeBace: Shi Ji, Trigger: trigger port, Ch1: channel oscilloscope 1, Ch2: channel oscilloscope 2.
1.2.6/40us 20 pulse waveform tests:
● 11kA short-circuit current is tested:
Short circuit waveform testing: by generator output end short circuit, carries out shock-testing according to figure below charging, records each test waveform figure number
● 20 road pulse delay tests
Charging 5kV, arranges recurrent interval 200us.Test 10 times, front 5 positive polaritys test, rear 5 negative polarity test, record correlation parameter,
Charging 20kV, arranges recurrent interval 10ms.Test 6 times, 3 times positive polarity test, rear 3 negative polarity test, record correlation parameter,
Charging 20kV, arranges recurrent interval 100ms.Test 6 times, 3 times positive polarity test, rear 3 negative polarity test, record correlation parameter,
Result of determination: qualified
2.8/20us waveform testing:
● 40kA short-circuit current is tested:
Short circuit waveform testing: by generator output end short circuit, carries out shock-testing according to figure below charging, records each test waveform figure number
● 20 road pulse delay tests
Charging 5kV, arranges recurrent interval 100us.Test 6 times, 3 times positive polarity test, rear 3 negative polarity test, record correlation parameter,
Charging 10kV, arranges recurrent interval 10ms.Test 6 times, front 2 positive polaritys test, rear 2 negative polarity test, record correlation parameter,
Charging 20kV, arranges recurrent interval 100ms.Test 6 times, 3 times positive polarity test, rear 3 negative polarity test, record correlation parameter,
Result of determination: qualified
3.10/350us waveform testing:
● 25kA tests, and by generator output end short circuit, carries out shock-testing, records each test waveform figure number for positive and negative each 3 times
Result of determination: qualified
4.8/20us high-current test-150kA
1 150kA test, by generator output end short circuit, carries out shock-testing, records each test waveform figure number for positive and negative each 3 times
Result of determination: qualified
5.8/20us the waveform testing of 1.2/50us composite wave:
Short-circuit current waveform is tested: by generator output end short circuit, carries out shock-testing, record each test waveform figure number according to figure below charging
Open-circuit voltage waveform is tested: opened a way by generator output end, carries out shock-testing, record each test waveform figure number according to figure below charging
Result of determination: qualified
6.1.2/50us High Voltage Impulse Waveform is tested:
● open-circuit voltage waveform is tested: opened a way by generator output end, carries out shock-testing, record each test waveform figure number according to figure below charging
Result of determination: qualified
7. operating duty phase-shifting trigger test
Adopt igniting to trigger, according to the form below arranges phase angle, test actual angle
| Sequence number | Angle is set | Actual measurement angle | Angular deviation | Figure number |
| 1 | 30° | 30.6 | 0.6 | 2858 |
| 2 | 60° | 61.2 | 1.2 | 2859 |
| 3 | 90° | 90 | 0 | 2855 |
| 4 | 180° | 181.8 | 1.8 | 2860 |
| 5 | 270° | 271.8 | 1.8 | 2861 |
| 6 | 360° | 361.8 | 1.8 | 2863 |
The utility model is described in detail in preferred embodiment above by concrete; but those skilled in the art should be understood that; the utility model is not limited to the above embodiment; all within spirit of the present utility model and principle; any amendment of doing, equivalent replacement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. the many wave forms impact generators of 20 pulse, is characterized in that: comprise transformer charging device, 20 body capacitive energy storage devices, the 20 anti-electric ball gaps in tunnel, 20 cover harmonic device and test product casees;
Described transformer charging device, described 20 body capacitive energy storage devices, described 20 tunnel anti-electric ball gaps are connected successively with described test product case; Described transformer charging device and described 20 body capacitive energy storage devices are all connected to described 20 cover harmonic devices; Be arranged in parallel between described 20 body capacitive energy storage devices, be arranged in parallel between the described 20 anti-electric ball gaps in tunnel, be arranged in parallel between described 20 cover harmonic devices;
Described test product case ground connection, described 20 cover harmonic devices are connected on the ground wire of described test product case.
2. the many wave forms impact generators of 20 pulse according to claim 1, it is characterized in that: also comprise automatic control survey analytic system, described transformer charging device, described 20 tunnel anti-electric ball gaps are connected described automatic control survey analytic system respectively with described test product case.
3. the many wave forms impact generators of 20 pulse according to claim 1, is characterized in that: the many wave forms impact generators of described 20 pulse adopt impulsive discharge typical loop in physical construction layout, Capacitor banks with the public center of circle, fan-shaped array.
4. the many wave forms impact generators of 20 pulse according to claim 1, is characterized in that: the described 20 anti-electric ball gaps in tunnel all adopt photoelectric displacement scrambler.
5. the many wave forms impact generators of 20 pulse according to claim 1, is characterized in that: also comprise electric capacity, often organize on described electric capacity and increase a charging resistor.
6. the many wave forms impact generators of 20 pulse according to claim 1, is characterized in that: each ball discharge gap correspondence in described 20 tunnel anti-electric ball gaps arranges a single motor.
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| CN201420610371.7U CN204154766U (en) | 2014-10-21 | 2014-10-21 | The many wave forms impact generators of a kind of 20 pulse |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836550A (en) * | 2015-05-08 | 2015-08-12 | 南京信息工程大学 | High-voltage pulse power supply trigger controller |
| CN105572436A (en) * | 2014-10-21 | 2016-05-11 | 黑龙江省防雷中心 | 20-pulse multi-waveform impact generator |
-
2014
- 2014-10-21 CN CN201420610371.7U patent/CN204154766U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572436A (en) * | 2014-10-21 | 2016-05-11 | 黑龙江省防雷中心 | 20-pulse multi-waveform impact generator |
| CN105572436B (en) * | 2014-10-21 | 2019-06-11 | 黑龙江省防雷中心 | A kind of more wave forms impact generators of 20 pulses |
| CN104836550A (en) * | 2015-05-08 | 2015-08-12 | 南京信息工程大学 | High-voltage pulse power supply trigger controller |
| CN104836550B (en) * | 2015-05-08 | 2017-07-07 | 南京信息工程大学 | A kind of high-voltage pulse power source trigger controller |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20160822 Address after: 150000 No. 47 electric carbon road, Xiangfang District, Heilongjiang, Harbin Patentee after: LIGHTNING PROTECTION CENTER OF HEILONGJIANG PROVINCE Patentee after: SHANGHAI GUANTU ELECTRIC TECHNOLOGY CO.,LTD. Address before: 150000 No. 47 electric carbon road, Xiangfang District, Heilongjiang, Harbin Patentee before: LIGHTNING PROTECTION CENTER OF HEILONGJIANG PROVINCE Patentee before: SHANGHAI GRANDTOP LIGHTING TECHNOLOGY CO.,LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20211021 |