CN106357240B - A kind of controllable Marx generator of compact-type high-pressure - Google Patents
A kind of controllable Marx generator of compact-type high-pressure Download PDFInfo
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- CN106357240B CN106357240B CN201610853425.6A CN201610853425A CN106357240B CN 106357240 B CN106357240 B CN 106357240B CN 201610853425 A CN201610853425 A CN 201610853425A CN 106357240 B CN106357240 B CN 106357240B
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
- H03K3/537—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback the switching device being a spark gap
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Abstract
The invention discloses a kind of controllable Marx generators of compact-type high-pressure, including charge power supply, charging resistor, sphere gap trigger switch, pressure-resistant capacitance group, (N-1) a capacitor, (N-1) a spark switch, 2N resistance and steepness gap, wherein the charging resistor, sphere gap trigger switch, pressure-resistant capacitance group, capacitor, spark switch and resistance are all set in the metallic cylinder of sealing, and the mixed gas of liquid nitrogen and sulfur hexafluoride is filled in the metallic cylinder of the sealing, the steepness gap is for exporting steep rise high-voltage pulse.The controllable Marx generator high reliablity of above-mentioned compact-type high-pressure, small in size, high voltage pulse forward position is precipitous, low cost.
Description
Technical field
The present invention relates to a kind of technical field of pulse power, in particular to a kind of controllable Marx generator of compact-type high-pressure.
Background technique
Pulse Power Techniques are to study the technology of high intensity pulsing electromagnetic field power amplification, it is stored up in a longer period of time with lower-wattage
Electric field or magnetic field energy are deposited, fast energy switching, pulse compression, power amplification are carried out followed by various switches, very short
Pulse electromagnetic energy is discharged into specific load in time, that is to say, that press pulse energy in time size
Contracting, to obtain high-peak power output in a very short period of time.
In High pulse power technology, Marx generator is mostly used greatly as primary energy, Marx generator can be lower
Under charging voltage, by way of charged in parallel, discharged in series, the high-voltage pulse signal of megavolt magnitude is generated.Russia's exploitation
Development of the SINUS and RADAN series of products in terms of High pulse power technology out has huge contribution.
However, due to general Marx generator generate pulse voltage it is high, be easy to cause pulsed capacitance especially with
Capacitor with reference to the earth connection bears high overvoltage pulse and punctures, and reduces the reliability of Marx generator entirety, prestige
Coerce its safety.Another bottleneck of Marx generator be pulse front edge steepness be not easy to guarantee, the firing action in each gap
Also it is not easy to synchronize.And with the development of technology and application demand, pulse power system is in addition to meeting output voltage, power etc.
Other than basic requirement, also to its volume and weight, more stringent requirements are proposed.
Therefore, small design, lightweight Marx device, improve its reliability, guarantee pulse front edge steepness, be Marx
The developing direction of device.
Summary of the invention
For current Marx generator global reliability not high, pulse front edge steepness be not easy to guarantee, minimize, lightweight etc.
Requirement, a kind of controllable Marx generator of compact-type high-pressure provided by the present invention.
This Marx generator, including charge power supply, charging resistor, sphere gap trigger switch, pressure-resistant capacitance group, (N-1) are a
Capacitor, (N-1) a spark switch, 2N resistance and steepness gap, wherein the charging resistor, sphere gap trigger switch, pressure resistance
Capacitance group, capacitor, spark switch and resistance are all set in the metallic cylinder of sealing, and are filled in the metallic cylinder of the sealing
The mixed gas of liquid nitrogen and sulfur hexafluoride；The charge power supply is connected with one end of charging resistor, the charging resistor it is another
One end passes through pressure-resistant capacitance group ground connection, and the node between the charging resistor and pressure-resistant capacitance group also passes sequentially through first to the
(N-1) resistance is connected with one end of N resistance, and the node between N resistance and (N-1) resistance passes sequentially through (N-1) electricity
Hold and (2N-1) resistance is to (N+1) resistance eutral grounding, the both ends of the sphere gap trigger switch are connected to first resistor
The node between node and first capacitor and (N+1) resistance between charging resistor, the first spark switch and sphere gap
Trigger switch is connected in parallel, the both ends of the second spark switch be connected to node between second resistance and first resistor and
Node between second capacitor and (N+2) resistance, the both ends of (N-1) spark switch are connected to N resistance and (N-
1) node between the node and N capacitor and 2N resistance between a resistance, the N resistance and (N-1) capacitor it
Between node be connected to the one end in steepness gap, the other end in the steepness gap is for exporting high-voltage pulse.
Further, the controllable Marx generator of the compact-type high-pressure further includes high-voltage diode, the high-voltage diode
It is connected between charge power supply and charging resistor, wherein one end of the high-voltage diode is connected with charge power supply, the high pressure
The other end of diode is connected with charging resistor.
Further, the controllable Marx generator of the compact-type high-pressure further includes the first bushing, the charging resistor
The first bushing is arranged on line between high-voltage diode, and the part of first bushing is located at round metal
The inside of cylinder, another part are located at the outside of metallic cylinder.
Further, the controllable Marx generator of the compact-type high-pressure further includes the second bushing, the steepness gap
The other end by the second bushing export high-voltage pulse, the part of second bushing is located at the interior of metallic cylinder
Portion, another part are located at the outside of metallic cylinder.
Further, the controllable Marx generator of the compact-type high-pressure further includes electric capacity of voltage regulation, the steepness gap it is another
One end also passes through the electric capacity of voltage regulation and is grounded, and the electric capacity of voltage regulation is located at the outside of metallic cylinder.
Wherein, the pressure-resistant capacitance group is fixed on capacitor support plate by insulated fastener with (N-1) a capacitor and is in
"-" type arrangement, and the pressure-resistant capacitance group and (N-1) a capacitor are coaxial configuration arrangement.
Wherein, the sphere gap trigger switch and (N-1) a spark switch in parallel relationship and are in same optical path
On.
Wherein, the sphere gap trigger switch is controllable triggering.
Wherein, the capacitor support plate and insulating barrier are all made of Teflom Insulation Material and are made, the sealing
Metallic cylinder is made of Steel material.
Further, the controllable Marx generator of the compact-type high-pressure further includes an insulation being located inside metallic cylinder
Entire metallic cylinder is divide into upper part and lower part by plate, the insulation board, (N-1) a spark switch and sphere gap trigger switch
It is respectively positioned on top, and the liquid nitrogen and sulfur hexafluoride are only injected into the top of sealing metal cylinder.
The controllable Marx generator of a kind of compact-type high-pressure of the present invention, sets resistance to voltage capacitance for first order capacitor
Group effectively raises the voltage endurance capability and overall stability of entire Marx generator.Meanwhile by the sphere gap trigger switch
It is set as being connected in parallel with first order spark switch, entire Marx generator can be controlled using sphere gap trigger switch at runtime
Unlatching, the electric discharge of Marx generator not only can be effectively controlled and reduce the loss of the spark switch in entire generator,
Share dash current, and then is improved the durability and stability of entire generator.In addition, the inside of the metallic cylinder is filled out
Mixed gas filled with liquid nitrogen and SF6, the distributed resistance very little of route, arc quenching effect is fabulous, since the presence of liquid nitrogen makes
Breakdown strength is high, sphere gap is very short, and distributed inductance is small, and then may make and export high-voltage pulse caused by entire generator
Steepness it is bigger.And in the present invention, several spark switch are in same optical path, and spark may make to be produced after discharge
Raw ultraviolet light can generate the effect be connected in advance to next stage spark switch, facilitate the fast conducting of entire Marx generator.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing and carries out
Illustrate:
Fig. 1 is a kind of schematic diagram of the better embodiment of the controllable Marx generator of compact-type high-pressure of the present invention.
Specific embodiment
Below in conjunction with attached drawing, preferred implementation of the invention is described in detail.
Fig. 1 is a kind of schematic diagram of the better embodiment of the controllable Marx generator of compact-type high-pressure of the present invention, institute
The better embodiment for stating the controllable Marx generator of compact-type high-pressure includes charge power supply V, high-voltage diode D1, the first high pressing sleeve
Pipe 2 and the second bushing 20, charging resistor R01, sphere gap trigger switch G1, pressure-resistant capacitance group 6, several capacitors, Ruo Ganhuo
The flowers are in blossom pass, several resistance, steepness gap 9 and electric capacity of voltage regulation C20, wherein the charging resistor R01, sphere gap trigger switch G1,
Pressure-resistant capacitance group 6, several capacitors, several spark switch and several resistance are all set in the metallic cylinder 8 of sealing, and the sealing
Metallic cylinder 8 in be filled with liquid nitrogen and sulfur hexafluoride (SF6) mixed gas.
The charge power supply V is connected with the anode of high-voltage diode D1, the cathode and charging electricity of the high-voltage diode D1
The one end for hindering R01 is connected, and the first bushing 2 is arranged on the line between the charging resistor R01 and high-voltage diode D1,
And the part of first bushing 2 is located at the inside of metallic cylinder 8, another part is located at the outside of metallic cylinder 8.Certainly
In other embodiments, charge power supply V can be also connected with the cathode of high-voltage diode D1, the anode of the high-voltage diode D1
Then it is connected with charging resistor R01.
The other end of the charging resistor R01 passes through pressure-resistant capacitance group 6 and is grounded, in present embodiment, the pressure resistance voltage
Group 6 includes capacitor C11 ~ C14, and one end of the capacitor C11 is connected to one far from high-voltage diode D1 on charging resistor R01
End, the other end of the capacitor C11 are grounded by capacitor C12, and one end of the capacitor C13 is also connected on charging resistor R01
One end far from high-voltage diode D1, the other end of the capacitor C13 are grounded by capacitor C14, the capacitor C11 and capacitor
Node between C12 is connected to the node between capacitor C13 and capacitor C14.Certainly, in other embodiments, the resistance to piezoelectricity
Pressure group 6 also may include the capacitor of other quantity.
Node between the charging resistor R01 and capacitor C11 also passes sequentially through resistance R11, R12, R13... and R1n
One end is connected, and the node between the resistance R11 and resistance R12 is grounded after passing sequentially through capacitor C2 and resistance R21, the resistance
Node between R12 and resistance R13 passes sequentially through the node that capacitor C3 and resistance R22 is connected between capacitor C2 and resistance R21,
And so on, resistance R1n pass sequentially through capacitor Cn and resistance R2n be connected to capacitor Cn-1 and resistance R2 (n-1) (not shown) it
Between node.
The both ends of the sphere gap trigger switch G1 be connected to the node between resistance R11 and charging resistor R01 with
And the node between capacitor C2 and resistance R21, the first spark switch G2 are connected in parallel with sphere gap trigger switch G1, the second spark
The both ends of switch G3 are connected to the section between the node between resistance R12 and resistance R11 and capacitor C3 and resistance R22
Point, the both ends of third spark switch G4 are connected to node between resistance R13 and resistance R12 and capacitor C4 and resistance
Node between R23, and so on, the both ends of (N-1) spark switch Gn are connected to resistance R1n and resistance R1 (n-1)
Between node and capacitor Cn and resistance R2n between node.
Node between the resistance R1n and capacitor Cn is connected to the one end in steepness gap 9, the steepness gap 9 it is another
One end exports high-voltage pulse by the second bushing 20, while being also grounded by the electric capacity of voltage regulation C20.Present embodiment
In, the part of second bushing 20 is located at the inside of metallic cylinder 8, and another part is located at the outside of metallic cylinder 8, institute
State the outside that electric capacity of voltage regulation C20 is located at metallic cylinder 8.
In present embodiment, the pressure resistance capacitance group 6 is fixed on capacitor by insulated fastener with other multiple capacitor C2 ~ Cn
It arranges on support plate and in "-" type, and the pressure-resistant capacitance group 6 and other multiple capacitor C2 ~ Cn are coaxial configuration arrangement.
In parallel relationship and in same optical path, the sphere gap triggering is opened for the sphere gap trigger switch G1 and several spark switch
Closing G1 is controllable triggering.
Specifically, the controllable Marx generator of compact-type high-pressure of the present invention includes (N-1) a capacitor, (N-1)
A spark switch, 2N resistance, wherein the node between the charging resistor R01 and pressure-resistant capacitance group 6 also passes sequentially through first
It is connected to (N-1) resistance with one end of N resistance, the node between N resistance and (N-1) resistance passes sequentially through (N-
1) to (N+1) resistance eutral grounding, the both ends of the sphere gap trigger switch G1 are connected to for capacitor and (2N-1) resistance
The node between node and first capacitor C2 and (N+1) resistance between one resistance R11 and charging resistor R01, the first fire
The flowers are in blossom, and pass G2 and sphere gap trigger switch G1 is connected in parallel, and the both ends of the second spark switch G2 are connected to second resistance R12
The node between node and the second capacitor C3 and (N+2) resistance between first resistor R11, (N-1) spark switch
The both ends of Gn are connected to node and N capacitor Cn-1 and 2N electricity between N resistance R1n and (N-1) a resistance
The node between R2n is hindered, the node between N the resistance R1n and (N-1) capacitor Cn-1 is connected to the one of steepness gap 9
End.
In present embodiment, the capacitor support plate and insulating barrier are all made of the insulating materials such as polytetrafluoroethylene (PTFE) and are made,
The metallic cylinder 8 of the sealing is made of Steel material.
Simple illustration will be carried out to the working principle of above-mentioned Marx generator below:
The charge power supply V by high-voltage diode D1 and charging resistor R01 to the pressure-resistant capacitance group 6 and each capacitor into
Row charging, the sphere gap trigger switch G1 are used to control the triggered time of entire Marx generator, the multiple spark switch
It is connected in parallel effectively to share loss of the dash current to sphere gap trigger switch G1.
In present embodiment, the multiple spark switch and sphere gap switch G1 are placed in same optical path, so previous
The ultraviolet light generated when grade switch conduction can effectively generate the effect of preionization to next stage switch, simultaneously as there is liquid
The mixed gas of state nitrogen and sulfur hexafluoride may make all switches almost to work under superconducting state, and arc quenching effect is fabulous, stablizes
Property it is high so that the high voltage pulse waveform of output is closer to perfect condition.
The controllable Marx generator of compact-type high-pressure of the present invention, sphere gap trigger switch G1, charge power supply V and height
Press diode D1 size can the high-voltage pulse according to needed for entire Marx generator index parameter and determine, it is described resistance to
The quantity and size parameter for the capacitor that voltage capacitance group 6 is included also is determined by the index parameter of required high-voltage pulse, and institute
The size for stating capacitor support plate is then determined by the quantity and size of capacitor.
The controllable Marx generator of a kind of compact-type high-pressure of the present invention, sets resistance to voltage capacitance for first order capacitor
Group effectively raises the voltage endurance capability and overall stability of entire Marx generator.Meanwhile by the sphere gap trigger switch
It is set as being connected in parallel with first order spark switch, entire Marx generator can be controlled using sphere gap trigger switch at runtime
Unlatching, the electric discharge of Marx generator not only can be effectively controlled and reduce the loss of the spark switch in entire generator,
Share dash current, and then be improved entire Marx generator to the resistance to ability of overvoltage, improves its reliability.In addition,
The inside of the metallic cylinder 8 is filled with the mixed gas of liquid nitrogen and SF6, the distributed resistance very little of route, arc quenching effect pole
Good, since the presence of liquid nitrogen makes breakdown strength high, sphere gap is very short, and distributed inductance is small, and then may make entire generation
The steepness of output high-voltage pulse caused by device is higher.And in the present invention, several spark switch are in same optical path,
Ultraviolet light caused by may make spark after discharge can generate the effect be connected in advance to next stage spark switch, facilitate entire
The simultaneously and rapidly movement of Marx generator improves leading-edge steepness.
In other embodiments, also an insulating barrier can be added in the metallic cylinder 8, the metal that will entirely seal
Cylinder 8 is divided to for upper and lower two semicolumns, and several spark switch and sphere gap trigger switch are placed in the upper of sealing metal cylinder 8
Portion, the top injection liquid nitrogen and sulfur hexafluoride of the sealing metal cylinder 8；Other component is then placed under sealing metal cylinder 8
Insulating oil is injected in portion, 8 lower part of sealing metal cylinder.
Finally, it is stated that the above preferred implementation is only used to illustrate the technical scheme of the present invention and not to limit it, although passing through
Above-mentioned preferred implementation is described in detail the present invention, however, those skilled in the art should understand that, can be in form
Various changes are made to it in upper and details, without departing from claims of the present invention limited range.
Claims (10)
1. a kind of controllable Marx generator of compact-type high-pressure, it is characterised in that: including charge power supply, charging resistor, sphere gap touching
Hair switch, pressure-resistant capacitance group, (N-1) a capacitor, (N-1) a spark switch, 2N resistance and steepness gap, wherein the charging
Resistance, sphere gap trigger switch, pressure-resistant capacitance group, capacitor, spark switch and resistance are all set in the metallic cylinder of sealing, and
The mixed gas of liquid nitrogen and sulfur hexafluoride is filled in the metallic cylinder of the sealing；The one of the charge power supply and charging resistor
End is connected, and the other end of the charging resistor passes through pressure-resistant capacitance group ground connection, between the charging resistor and pressure-resistant capacitance group
Node also passes sequentially through first and is connected to (N-1) resistance with one end of N resistance, between N resistance and (N-1) resistance
Node passes sequentially through (N-1) capacitor and (2N-1) resistance to (N+1) resistance eutral grounding, and the two of the sphere gap trigger switch
End is connected to the node between node and first capacitor and (N+1) resistance between first resistor and charging resistor,
First spark switch is connected in parallel with sphere gap trigger switch, and the both ends of the second spark switch are connected to second resistance and the
The node between node and the second capacitor and (N+2) resistance between one resistance, the both ends difference of (N-1) spark switch
The node being connected between the node and N capacitor and 2N resistance between N resistance and (N-1) a resistance, the N
Node between resistance and (N-1) capacitor is connected to the one end in steepness gap, and the other end in the steepness gap is for exporting
High-voltage pulse.
2. the controllable Marx generator of compact-type high-pressure as described in claim 1, it is characterised in that: it further include high-voltage diode,
The high-voltage diode is connected between charge power supply and charging resistor, wherein one end of the high-voltage diode and charge power supply
It is connected, the other end of the high-voltage diode is connected with charging resistor.
3. the controllable Marx generator of compact-type high-pressure as claimed in claim 2, it is characterised in that: further include the first high pressing sleeve
It manages, is arranged with the first bushing, and first bushing on the line between the charging resistor and high-voltage diode
Part be located at the inside of metallic cylinder, another part is located at the outside of metallic cylinder.
4. the controllable Marx generator of compact-type high-pressure as claimed in claim 3, it is characterised in that: further include the second high pressing sleeve
The other end of pipe, the steepness gap exports high-voltage pulse by the second bushing, and second bushing wears connection
Metallic cylinder it is inside and outside.
5. the controllable Marx generator of compact-type high-pressure as described in claim 1, it is characterised in that: it further include electric capacity of voltage regulation, institute
The other end for stating steepness gap also passes through the electric capacity of voltage regulation and is grounded, and the electric capacity of voltage regulation is located at the outside of metallic cylinder.
6. the controllable Marx generator of compact-type high-pressure as described in claim 1, it is characterised in that: it is described pressure resistance capacitance group with
(N-1) a capacitor is fixed on capacitor support plate by insulated fastener and is arranged in "-" type, and the pressure-resistant capacitance group and
(N-1) a capacitor is coaxial configuration arrangement.
7. the controllable Marx generator of compact-type high-pressure as described in claim 1, it is characterised in that: the sphere gap trigger switch
With (N-1) a spark switch in parallel relationship and in same optical path.
8. the controllable Marx generator of compact-type high-pressure as described in claim 1, it is characterised in that: the sphere gap trigger switch
Controllably to trigger.
9. the controllable Marx generator of compact-type high-pressure as described in claim 1, it is characterised in that: the capacitor support plate and absolutely
Edge partition is all made of Teflom Insulation Material and is made, and the metallic cylinder of the sealing is made of Steel material.
10. the controllable Marx generator of compact-type high-pressure as described in claim 1, it is characterised in that: further include one positioned at metal
Entire metallic cylinder is divide into upper part and lower part by the insulation board of cylinder interior, the insulation board, (N-1) a spark switch and
Sphere gap trigger switch is respectively positioned on top, and the liquid nitrogen and sulfur hexafluoride are only injected into the top of sealing metal cylinder,
The lower part of the metallic cylinder is by injection insulating oil.
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| CN201610853425.6A CN106357240B (en) | 2016-09-27 | 2016-09-27 | A kind of controllable Marx generator of compact-type high-pressure |
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| CN201610853425.6A CN106357240B (en) | 2016-09-27 | 2016-09-27 | A kind of controllable Marx generator of compact-type high-pressure |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107395173B (en) * | 2017-07-25 | 2024-03-12 | 西北核技术研究所 | Multi-gap gas switch with low trigger threshold |
| CN111510014B (en) * | 2020-04-01 | 2021-07-20 | 南京航空航天大学 | High-voltage pulse generating circuit |
| CN114696795A (en) * | 2022-03-18 | 2022-07-01 | 中国电子科技集团公司第二十九研究所 | Composite feed circuit of ultrahigh-voltage Marx generator |
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