CN104135250B - A kind of pulse power device based on ring-shaped pottery solidus - Google Patents
A kind of pulse power device based on ring-shaped pottery solidus Download PDFInfo
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- CN104135250B CN104135250B CN201410356613.9A CN201410356613A CN104135250B CN 104135250 B CN104135250 B CN 104135250B CN 201410356613 A CN201410356613 A CN 201410356613A CN 104135250 B CN104135250 B CN 104135250B
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Abstract
The invention discloses a kind of pulse power device based on ring-shaped pottery solidus, connected as one based on Marx voltage superposition including several pulse-forming lines, two charging inductances, several gas switch；Pulse-forming line forms line for loop pulse, and the annular surface that each loop pulse forms line is provided with a gas switch；Described loop pulse forms line and is sequentially overlapped one column construction of formation together by gas switch, described charging inductance passes through the internal ring that loop pulse forms line to be arranged on the inside of column construction, and described each two loop pulse forms and is provided with annular insulation board between line.The invention enables compacter in structure, its power to volume ratio improves at least 50% with the pulse power system having been reported that both at home and abroad at present；Coaxial design makes whole device Electric Field Distribution more uniform simultaneously, advantageously reduces the high-voltage breakdown event that voltage distortion causes.
Description
Technical field
The present invention relates to technical field of pulse power, specifically refer to a kind of rectangular pulse high pressure generating apparatus.Can apply
In fields such as spark photograph, High-Power Microwave, high power RF technology, investigations of materials.
Background technology
High power pulse power source miniaturization is the important directions of current PRF power technology research.HPM, X-ray, swash
The aspect application such as light research is higher to electron beam prescription, in the urgent need to developing rectangular pulse compact pulse power supply, base
Rectangular pulse power source research in Marx voltage superposition technology becomes domestic and international study hotspot in recent years.Adopt at present is several
Technological approaches have：1 is to adopt pulse forming network（PFN）Form pulse, voltage superposition output is realized by Marx technology；2 are
Pulse is formed using hv transmission line, voltage superposition output is realized by Marx technology；3 is linear using flat plate type linear solid-state
Become pulse, voltage superposition output is realized by Marx technology.Some Small-Sized Pulseds have been succeeded in developing using above technology path
Power source, but the practical also distance of power to volume ratio horizontal range that these devices are realized.
In approach 1, pulse technique is formed using pulse forming network, on generation long pulse, there is certain advantage, but
When producing a hundred or so nanosecond, because lumped parameter electric capacity and inductance can make before and after pulse along very long, furthermore, due to current high pressure
Ceramic capacitor or thin film capacitor volume are larger, and the relatively good pulse voltage of flat-top to be produced needs multistage electric capacity electricity
Sense is so that whole pulse network volume is larger.Hv transmission line is adopted to form pulse for approach 2, because dielectric constant is relatively low
（The dielectric constant being currently known dielectric constant highest deionized water also only has 81）, produce the high-voltage pulse of certain pulse width
The electrical length needing is very long, is unfavorable for the trend of whole pulse power device miniaturization.Approach 3 adopts flat plate type linear
Although solidus forms the dielectric constant that pulse can be of a relatively high, flat board solidus is because it is according to the principle of reflection of ripple
Form pulse, because reflection can make waveform quality poor in communication process, pulser is all by lead at present simultaneously
It is connected with switch, whole loop inductance can be made larger, be unfavorable for forming the high-voltage pulse in fast pulse forward position.Simultaneously in order to reduce
Switch connects inductance, and during multistage marx superposition, structure design will be extremely complex.
Early stage the present inventor have developed a kind of ring-like state pulse forming line of electrode opening, patent applied for（The patent No.：
201420085748.1）Although it compares flat plate type linear solid state pulse line very big proposing in terms of densification and miniaturization
Height, but because the tip of the silver coating at two ends at opening can make field intensity bigger than normal, there is point discharge problem,
The enhancing of field intensity simultaneously the body of ceramic material can be led to puncture and edge flashing generation；There is also flat board solid state pulse shape simultaneously
The problems such as become the waveform quality that line voltage wave reflection brings to be deteriorated.
Content of the invention
Produce the pulse power device of high-voltage pulse for above-mentioned prior art, technology to be solved by this invention is asked
Topic is the pulse power device providing a set of miniaturization, and it is capable of fast pulse forward position, high compact, and waveform quality is good, high
The high-voltage pulse output of power to volume ratio.This type pulse power device can apply to spark photograph, High-Power Microwave, Gao Gong
The fields such as rate radio-frequency technique, investigation of materials, have important social benefit and objective economic benefit.
The technical solution used in the present invention：A kind of pulse power device based on ring-shaped pottery solidus, including being arranged on
Pulses generation section in cylinder and load end, both are sealed off by insulation board；Described pulses generation section includes several arteries and veins
Punching forms line, two charging inductances, several gas switch are connected as one based on Marx voltage superposition；It is characterized in that it is described
Pulse-forming line forms line for loop pulse, and the annular surface that each loop pulse forms line is provided with a gas switch electricity
Pole, the gas switch electrode that two neighboring loop pulse forms line surface forms switch；Described loop pulse forms line and passes through gas
Body switch is sequentially overlapped one column construction of formation together, and described charging inductance passes through loop pulse to form the internal ring setting of line
In the inside of column construction, described each two loop pulse forms and is provided with annular insulation board between line.
In technique scheme, described loop pulse forms line and includes ring-shaped pottery medium substrate and electrode layer；Described
Electrode layer is the annulus of closed loop, and two annular surfaces of described ring-shaped pottery medium substrate are respectively arranged with electrode layer, two
The concentric of electrode layer, same to radius.
In technique scheme, described gas switch includes two electrodes, and one of electrode is that flat board copper sheet is direct
It is welded on the electrode layer on annular insulated substrate；Another electrode is threaded screw rod, is welded on annular insulated substrate
Another electrode layer on.
In technique scheme, described threaded screw rod is provided with one can be with the nut of adjusting position.
In technique scheme, the position of two electrode weldings of described gas switch is corresponding up and down.
In technique scheme, described two adjacent annular insulation board radiuses are different.
In technique scheme, described from outbound course to import and export to odd number layer insulation board radius be more than even number
The insulation board radius of layer, and a ring through hole is provided with the edge of the insulation board of odd number layer.
In technique scheme, the same direction of described insulation panel therefor is provided with opening.
In technique scheme, described two neighboring loop pulse forms the electrode position of air switch on line relatively
Should, the spacing of the gas switch between two loop pulse formation lines is adjusted by nut.
In the present invention, the tip for solving the silver coating at two ends at existing opening can make field intensity larger and voltage wave is passing
The waveform quality compromises that reflection during broadcasting brings, present invention employs a kind of ring-like solid-state of totally-enclosed silver-coated electrode
Pulse-forming line, it is totally enclosed on two faces of the annular plate of ceramic material to plate silver-colored conduct that this ring-like solid-state forms line
Electrode, does not stay opening, therefore there are not reflection problems.The generation of its quasi- rectangle high-voltage pulse is along the two-way biography of loop wire according to pulse
Defeated, the Forming Theory of Parallel opertation, compared with flat plate type linear state pulse forming line, quasi- rectangle arteries and veins is produced according to the principle of reflection of ripple
Rushing technology, its waveform quality can improve significantly, pulse front edge can be improved, therefore being existed by this approach avoid voltage wave
The reflection traveling to ripple during end face leads to the problem of waveform quality variation.Simultaneously because there is no the presence of open end, also do not deposit
In the tip presence of end silver electrode, so that Electric Field Distribution is more uniform, the limited possibility avoiding point discharge, with
When entirely ring-like ceramic silver plating make Electric Field Distribution more uniform, it is possible to increase the resistance to voltage levels of whole state pulse forming line,
Reduce the probability of happening of edge flashing.
In the present invention, two electrodes of gas switch are directly welded in two silver electricity of ring-like state pulse forming line
Extremely go up, two electrodes are a circular flat board copper sheet and a threaded screw rod respectively, by designing an electrode nut
It is screwed on screw rod, when multistage ring-like state pulse forming line carries out marx superposition, two can be adjusted by adjusting electrode nut
The spacing of gas switch between individual ring-like state pulse forming line.So allow for gas switch and solid state pulse line forms one
Overall, decrease pulse-forming line and the direct connecting line of gas switch, so that the connection inductance of each switch reduces, whole
The loop inductance of individual discharge loop greatly reduces, and the reduction of loop inductance can effectively improve pulse front edge, optimizes output
High-voltage pulse quality.
In the present invention, pulse-forming line, gas switch and charging inductance are all laminated arrangement along axis, and gas switch is being formed
Closely arrange between wire loop, charging inductance is placed in and is formed in the space that line surrounds.Because state pulse forming line and outer tube are all same
The design of spindle-type, so allows for field distribution between high-pressure side and the outer tube on ring-like state pulse forming line electrode more equal
Even, substantially reduce risk and the probability of point discharge, required insulating space just subtracts significantly under certain insulation voltage
Little, can preferably realize the miniaturization of whole device.Simultaneously because when multi-stage solid stage pulse-forming line is overlapped, every grade of shape
Become line little to surrounding electric field distribution influence it is not easy to the problems such as produce electric field distortion, so that in voltage wave discharge process
Surrounding electric field or other solid pulse-forming lines affect little, output pulse waveform quality height to its discharge electric field.
In sum, due to employing technique scheme, the invention has the beneficial effects as follows：Whole pulse power system by
In employing coaxial integrated design so that compacter in structure in structure, its power to volume ratio has both at home and abroad with present
The pulse power system of report improves at least 50%；Coaxial design makes whole device Electric Field Distribution more uniform simultaneously, is conducive to
Reduce the high-voltage breakdown event that voltage distortion causes.Line is formed using annular solid-state and can export Rapid Pulse as producing pulse unit
Rush the high-voltage pulse in forward position.
Brief description
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the partial structural diagram of the pulse-forming line of the present invention；
Fig. 3 is the structural representation that annular forms line；
Fig. 4 is typical output voltage waveform；
Wherein：1 is charging inductance, and 2 is that loop pulse forms line, and 3 is annular insulation board, and 4 is earth lead, and 5 is nut, 6
It is flat board copper sheet, 7 is charging input end, 8 is high-voltage output end, 9 is insulating barrier, 10 is load, and 11 is electrode layer, 12 is pottery
Ceramic dielectric substrate.
Specific embodiment
All features disclosed in this specification, or disclosed all methods or during step, except mutually exclusive
Feature and/or step beyond, all can combine by any way.
As shown in figure 1, the present invention's comprises to be arranged in cylinder based on the pulse power device of ring-shaped pottery solidus
Pulses generation section and load patch composition, are separated by insulating barrier sealing between pulses generation section and load patch.Pulses generation section
Fill SF6Gas（Or SF6With N2Mixed gas）Insulation, load patch fills transformer oil insulation, uses organic glass between two kinds of dielectrics
Glass insulation board is isolated, and the outer tube of in figure whole device is not drawn into.Pulses generation section is the main body of device, is formed including loop pulse
The parts such as line, gas switch, annular insulation board, charging inductance.
As shown in Figure 2.Loop pulse forms line, gas switch and charging inductance and is all laminated arrangement, gas switch along axis
Closely arrange between wire loop being formed, two groups of charging inductances are placed in and are formed in the space that line surrounds, in addition to chopped-off head and final stage, Qi Taji
Pulse-forming line is used in series using two rings.Load adopts water resistance or diode.Form line in order to fasten annular, in annular absolutely
The circumferential edges of listrium are provided with through hole, insert threaded screw rod in through-holes, and from the top, using in layer fastens spiral shell
Female each layer of loop pulse of compression forms line.During work, the charging input end of charge power supply is connected with charging inductance, by charging
Inductance to pulse-forming line charged in parallel to predetermined voltage, the switch conduction when magnitude of voltage is more than the breakdown voltage of gas switch,
Pulse-forming line voltage superposition at different levels produce high-voltage pulse to load discharge, are exported high-voltage pulse by high-voltage output end negative
Carry.Charging inductance can regard short circuit during charging as, realize being formed between line unit and formed during pulse-forming line electric discharge
Isolation between line and power supply.
Charging inductance is built in ring-like state pulse forming line, so on the one hand desirably prevents what electric field distortion brought
Impact, also can achieve the purpose of densification and miniaturization simultaneously.Pass through nylon or organic between two ring-like solid state pulse lines
, as dielectric, insulation thickness is according to the voltage being applied to ring-like state pulse forming line two ends and SF6 gas unit for glass
Apart under insulation field intensity depending on, two copper electrodes at two neighboring ring-like state pulse forming line two ends as gas switch,
Because whole pulses generation section is filled with the SF6 gas of certain pressure, so SF6 is exhausted as gas switch and pulse-forming line
Edge medium.
As shown in figure 3, loop pulse forms line by an annular ceramic dielectric substrate, at two of ceramic dielectric substrate
One layer of annular electrode is provided with ring surface, electrode is arranged by the way of silver-plated.Ceramic dielectric substrate is the pottery after sintering
Piece, the width at annular electrode layer two ends is less than potsherd width (5mm), increases the breakdown length of electrode, thus preventing from dodging along face
Network punctures.In order to reduce inductance, gas switch is directly welded at loop pulse and is formed on the electrode layer of line, gas switch has two
Individual electrode, one of electrode is welded on electrode layer using flat board copper sheet, and the electrode of another gas switch is using threaded
Screw rod, be welded on loop pulse formed line another electrode layer on；Two electrodes of gas switch in vertical direction one
Cause.
As Fig. 4, the waveform that experiment obtains is good rectangular pulse output, exports pulse halfwidth（FWHM）About
60ns, forward position 8.2ns, the lower voltage efficiency of coupling is more than 90%.
The invention is not limited in aforesaid specific embodiment.The present invention expands to and any discloses in this manual
New feature or any new combination, and the arbitrary new method of disclosure or the step of process or any new combination.
Claims (9)
1. a kind of pulse power device based on ring-shaped pottery solidus, including the pulses generation section being arranged in cylinder and load
Section, both are sealed off by insulation board；If described pulses generation section includes several pulse-forming lines, two charging inductances
A dry gas switch is connected as one based on Marx voltage superposition；It is characterized in that described pulse-forming line is formed for loop pulse
Line, the annular surface that each loop pulse forms line is provided with a gas switch electrode, and two neighboring loop pulse is formed
The gas switch electrode on line surface forms switch；Described loop pulse formation line is sequentially overlapped by gas switch and is formed together
One column construction, described charging inductance passes through the internal ring that loop pulse forms line to be arranged on the inside of column construction, each two
Loop pulse forms and is provided with annular insulation board between line.
2. a kind of pulse power device based on ring-shaped pottery solidus according to claim 1 is it is characterised in that described
Loop pulse forms line and includes ring-shaped pottery medium substrate and electrode layer；Described electrode layer is the annulus of closed loop, described annular pottery
Electrode layer is respectively arranged with two annular surfaces of ceramic dielectric substrate, the center of circle of two electrode layers overlaps on vertical line, electricity
The radius of pole layer is equal.
3. a kind of pulse power device based on ring-shaped pottery solidus according to claim 1 and 2 is it is characterised in that institute
State gas switch and include two electrodes, one of electrode is directly welded at the electricity on ring-shaped pottery medium substrate for flat board copper sheet
On the layer of pole；Another electrode is threaded screw rod, is welded on another electrode layer on ring-shaped pottery medium substrate.
4. a kind of pulse power device based on ring-shaped pottery solidus according to claim 3, it is characterized by described band
Being provided with one on the screw rod of screw thread can be with the nut of adjusting position.
5. a kind of pulse power device based on ring-shaped pottery solidus according to claim 3, it is characterized by described gas
The position of two electrode weldings of body switch is corresponding up and down.
6. a kind of pulse power device based on ring-shaped pottery solidus according to claim 1, it is characterized by described phase
The annular insulation board radius of adjacent two is different.
7. a kind of pulse power device based on ring-shaped pottery solidus according to claim 6, it is characterized by from output
The radius of the insulation board to import and export to odd number layer for the direction is more than the insulation board radius of even level, and the side of the insulation board of odd number layer
One ring through hole is provided with edge.
8. a kind of pulse power device based on ring-shaped pottery solidus according to claim 7, it is characterized by used exhausted
The same direction of listrium is provided with opening.
9. a kind of pulse power device based on ring-shaped pottery solidus according to claim 1 or 4 or 5, it is characterized by
The electrode position that two neighboring loop pulse forms air switch on line is corresponding, and two loop pulses form the gas between line
The spacing of switch is adjusted by nut.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356613.9A CN104135250B (en) | 2014-07-25 | 2014-07-25 | A kind of pulse power device based on ring-shaped pottery solidus |
| US15/325,257 US10312890B2 (en) | 2014-07-25 | 2015-07-24 | Pulse power device based on annular ceramic solid state line |
| PCT/CN2015/085020 WO2016011972A1 (en) | 2014-07-25 | 2015-07-24 | Pulse power device based on annular ceramic solid state line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410356613.9A CN104135250B (en) | 2014-07-25 | 2014-07-25 | A kind of pulse power device based on ring-shaped pottery solidus |
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| CN104135250A CN104135250A (en) | 2014-11-05 |
| CN104135250B true CN104135250B (en) | 2017-03-08 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US10312890B2 (en) | 2014-07-25 | 2019-06-04 | Institute Of Applied Electronics, Caep | Pulse power device based on annular ceramic solid state line |
| CN104218923B (en) * | 2014-09-24 | 2018-01-09 | 中国工程物理研究院应用电子学研究所 | Disc quaternary formula compact Marx generators |
| CN106712744B (en) * | 2016-12-14 | 2020-01-24 | 中国人民解放军国防科学技术大学 | Semicircular coaxial high-power pulse forming line |
| CN109548349B (en) * | 2018-11-30 | 2023-09-19 | 中国工程物理研究院流体物理研究所 | High repetition frequency solid-state pulse power source integrated prototype device |
| CN109714028B (en) * | 2019-03-13 | 2023-03-21 | 中国工程物理研究院应用电子学研究所 | Modular coaxial compact Marx generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103475255A (en) * | 2013-08-02 | 2013-12-25 | 西北核技术研究所 | Marx generator with compact structure |
| CN103903838A (en) * | 2014-03-27 | 2014-07-02 | 西北核技术研究所 | Compact-type inductance-integrated electrode and processing method thereof |
| CN204013444U (en) * | 2014-07-25 | 2014-12-10 | 中国工程物理研究院应用电子学研究所 | A kind of pulse power device based on ring-shaped pottery solidus |
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|---|---|---|---|---|
| DE50015322D1 (en) * | 2000-12-20 | 2008-10-02 | Haefely Test Ag | WEARING CHAMBER STRUCTURE FOR ELECTRICAL IMPULSE GENERATOR |
| US20070159760A1 (en) * | 2005-05-13 | 2007-07-12 | Collins Clark | Methods and Systems Related to Pulsed Power |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103475255A (en) * | 2013-08-02 | 2013-12-25 | 西北核技术研究所 | Marx generator with compact structure |
| CN103903838A (en) * | 2014-03-27 | 2014-07-02 | 西北核技术研究所 | Compact-type inductance-integrated electrode and processing method thereof |
| CN204013444U (en) * | 2014-07-25 | 2014-12-10 | 中国工程物理研究院应用电子学研究所 | A kind of pulse power device based on ring-shaped pottery solidus |
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