CN105763096B - A kind of combination wave circuit for driving ablation-controlled arc to discharge - Google Patents
A kind of combination wave circuit for driving ablation-controlled arc to discharge Download PDFInfo
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- CN105763096B CN105763096B CN201610256978.3A CN201610256978A CN105763096B CN 105763096 B CN105763096 B CN 105763096B CN 201610256978 A CN201610256978 A CN 201610256978A CN 105763096 B CN105763096 B CN 105763096B
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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
- H03K3/57—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 semiconductor device
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Generation Of Surge Voltage And Current (AREA)
- Plasma Technology (AREA)
Abstract
The invention discloses a kind of combination wave circuits for driving ablation-controlled arc to discharge, including pluse output circuit and big current loop, pluse output circuit completes the flashover breakdown to capillary gap channel, big current loop forms the afterflow to clearance channel after capillary channel breakdown, and completes the ablation to microcapillary tube wall material by high current in capillary cavity body and melt.The present invention can reignition, application range is wider.
Description
Technical field
The invention belongs to technical field of pulse power, are related to a kind of composite wave electricity for driving ablation-controlled arc to discharge
Road.
Background technology
Ablation-controlled arc electric discharge can generate the plasma jet with characteristics such as high speed, high temperature and high conductivity,
It can be applied to touching for the igniting of propellant powder, space propulsion, material surface modifying, detoxication and long air spark gap
The multiple fields such as hair.Conventional capillary tube discharge is to reduce discharge inception voltage, needs to draw by way of wire discharge-induced explosion more
Fire the electric discharge of capillary channel.Obviously, the mode of this triggering capillary discharging cannot meet reignition, need to tie in electric discharge
Quick-fried silk is re-replaced after beam, which greatly limits the extensions of its application.It is more wide to make capillary discharging have
General application, a kind of new drive circuit that can substitute conventional trigger mode of research have great importance.
Invention content
It is an object of the invention to overcome the above-mentioned prior art, provide a kind of for driving ablation-controlled arc to put
The combination wave circuit of electricity, the circuit can reignition, application range is wider.
In order to achieve the above objectives, the combination wave circuit of the present invention for being used to that ablation-controlled arc to be driven to discharge includes pulse
Output loop and big current loop, pluse output circuit are connected with big current loop, and pluse output circuit is completed to capillary
The flashover breakdown of clearance channel, big current loop form the afterflow to clearance channel after capillary channel breakdown, and in capillary
The ablation to microcapillary tube wall material is completed in tube chamber by high current to melt.
When for two electrode single gap capillary pipe structures, the big current loop includes the first capacitance, inductance, anode
End, cathode terminal and resistance, the pluse output circuit include pulse transformer, thyristor, diode and the second capacitance, wherein
One end of primary side winding is connected with one end of the anode of diode and the second capacitance in pulse transformer, the second capacitance it is another
End and the cathode of diode and the anode of thyristor are connected, and primary side winding is another in the cathode and pulse transformer of thyristor
End is connected, and one end of vice-side winding is connected with cathode terminal in pulse transformer, and vice-side winding is another in pulse transformer
End is connected with one end of resistance, one end ground connection of the other end of resistance and the first capacitance, the other end and inductance of the first capacitance
One end be connected, the other end of inductance is connected with anode tap.
When for three electrodes, two gap capillary pipe structure, the big current loop includes the first capacitance, inductance, anode
End, cathode terminal, target and resistance, the pluse output circuit include pulse transformer, thyristor, diode and the second electricity
Hold, wherein one end of primary side winding is connected with one end of the anode of diode and the second capacitance in pulse transformer, the second electricity
The other end of appearance and the cathode of diode are connected with the anode of thyristor, in the cathode and pulse transformer of thyristor primary side around
The other end of group is connected, and target is connected with one end of vice-side winding in pulse transformer, secondary side in pulse transformer
The other end of winding is connected with one end of cathode terminal and resistance, one end ground connection of the other end of resistance and the first capacitance, and first
The other end of capacitance is connected with one end of inductance, and the other end of inductance is connected with anode tap.
The number of turns of vice-side winding is 10-50 circles in pulse transformer, and the number of turns of primary side winding is 1-5 in pulse transformer
Circle.
The output voltage of pulse transformer is 20kV~300kV.
The capacity of second capacitance is the μ F of 100nF~10, and charging voltage is 2kV~20kV.
The capacitance of first capacitance is the 10 μ F of μ F~1000, and charging voltage is 1kV~50kV.
The inductance value of inductance is 1 μ of μ H~100 H.
The resistance value of resistance is the Ω of 0.1 Ω~10.
The invention has the advantages that：
Combination wave circuit of the present invention for driving ablation-controlled arc to discharge at work, is exported back by pulse
The flashover breakdown to capillary gap channel is completed on road, and big current loop is formed after capillary channel breakdown to clearance channel
Afterflow completes the ablation ablation to microcapillary tube wall material by high current in capillary cavity body, is different from traditional capillary
Tube discharge circuit, the present invention are made of pluse output circuit and big current loop, pass through pluse output circuit and big current loop
Electric discharge cooperation realize the repeatability and long-life characteristics of capillary discharging, while can adapt in two electrode single gap capillaries
In two gap capillary pipe structure of structure and three electrodes, application range is relatively broad, and simple in structure, easy to operate, and cost is relatively low.
Description of the drawings
Fig. 1 is the structural schematic diagram when present invention is used for two electrode single gap capillary pipe structures；
Fig. 2 is the structural schematic diagram when present invention is used for three electrodes, two gap capillary pipe structure.
Specific implementation mode
The present invention is described in further detail below in conjunction with the accompanying drawings：
The combination wave circuit of the present invention for being used to that ablation-controlled arc to be driven to discharge includes pluse output circuit and big electricity
Road is flowed back to, pluse output circuit is connected with big current loop, and pluse output circuit completes the flashover to capillary gap channel
Breakdown, big current loop form the afterflow to clearance channel after capillary channel breakdown, and by big in capillary cavity body
Electric current is completed the ablation to microcapillary tube wall material and is melted.
Embodiment one
With reference to figure 1, when the present invention is used for two electrode single gap capillary pipe structures, the big current loop includes the first electricity
Hold C1, inductance Lo, anode tap 1, cathode terminal 2 and resistance R, the pluse output circuit include pulse transformer T, thyristor SCR,
Diode D and the second capacitance C2, wherein the anode and the second capacitance of one end of primary side winding and diode D in pulse transformer T
One end of C2 is connected, and the other end of the second capacitance C2 and the cathode of diode D are connected with the anode of thyristor SCR, brilliant lock
The cathode of pipe SCR is connected with the other end of primary side winding in pulse transformer T, one end of vice-side winding in pulse transformer T
It is connected with cathode terminal 2, the other end of vice-side winding is connected with one end of resistance R in pulse transformer T, and resistance R's is another
End and one end of the first capacitance C1 ground connection, the other end of the first capacitance C1 are connected with one end of inductance Lo, and inductance Lo's is another
End is connected with anode tap 1.
It should be noted that the number of turns of vice-side winding is 10-50 circles in pulse transformer T, in pulse transformer T primary side around
The number of turns of group is 1-5 circles；The output voltage of pulse transformer T is 20kV~300kV；The capacity of second capacitance C2 be 100nF~
10 μ F, charging voltage are 2kV~20kV；The capacitance of first capacitance C1 be the 10 μ F of μ F~1000, charging voltage be 1kV~
50kV；The inductance value of inductance Lo is 1 μ of μ H~100 H；The resistance value of resistance R is the Ω of 0.1 Ω~10.
Diode D hinders discharge voltage and current oscillation in pluse output circuit, prevents the magnetic core of pulse transformer T from existing
The saturation repeated in discharge process and reset；The vice-side winding of pulse transformer T is converted to saturation electricity after exporting high-voltage pulse
Sense, adjusts big current loop output current wave and current amplitude together with inductance Lo.To reduce pulse transformer T vice-side windings
Inductance, influence big current loop output current pulsewidth and current amplitude, the number of turns of pulse transformer T vice-side windings is 10~50
Circle, since the number of turns of vice-side winding is limited, the first capacitance C1 charging voltages increase to 1kV~50kV；Primary side winding the number of turns be 1~
5 circles；Primary side winding and vice-side winding are all made of high-voltage conducting wires coiling, and vice-side winding exportable voltage peak under idle condition is
20kV~300kV.When electric discharge, the control terminal of thyristor SCR receives trigger command, and the second capacitance C2 is via SCR pairs of thyristor
The primary side winding of pulse transformer T is discharged, and the vice-side winding of pulse transformer T exports high-voltage pulse so that between capillary
Gap channel edge flashing, after clearance channel edge flashing forms conductive channel, the magnetic core of pulse transformer T is rapidly saturated, and first
Capacitance C1 immediately discharges to clearance channel by the vice-side winding of pulse transformer T and resistance R, forms the RLC of big current loop
Electric discharge.
Embodiment two
With reference to figure 2, when the present invention is used for three electrodes, two gap capillary pipe structure, the big current loop includes the first electricity
Hold C1, inductance Lo, anode tap 1, cathode terminal 2, target 3 and resistance R, the pluse output circuit include pulse transformer T,
Thyristor SCR, diode D and the second capacitance C2, wherein the anode of one end of primary side winding and diode D in pulse transformer T
And second one end of capacitance C2 be connected, the anode phase of the other end of the second capacitance C2 and the cathode of diode D and thyristor SCR
Connection, the cathode of thyristor SCR are connected with the other end of primary side winding in pulse transformer T, target 3 and pulse transforming
One end of vice-side winding is connected in device T, one end of the other end of vice-side winding and cathode terminal 2 and resistance R in pulse transformer T
It is connected, one end of the other end of resistance R and the first capacitance C1 are grounded, the other end of the first capacitance C1 and one end phase of inductance Lo
Connection, the other end of inductance Lo are connected with anode tap 1.
It should be noted that the number of turns of vice-side winding is 10-50 circles in pulse transformer T, in pulse transformer T primary side around
The number of turns of group is 1-5 circles；The output voltage of pulse transformer T is 20kV~300kV；The capacity of second capacitance C2 be 100nF~
10 μ F, charging voltage are 2kV~20kV；The capacitance of first capacitance C1 be the 10 μ F of μ F~1000, charging voltage be 1kV~
50kV；The inductance value of inductance Lo is 1 μ of μ H~100 H；The resistance value of resistance R is the Ω of 0.1 Ω~10.
Capillary channel is divided into two gaps by target 3, i.e. anode tap 1 constitutes short air gap channel with target 3,
Cathode terminal 2 constitutes long gap channel with target 3.Diode D hinders discharge voltage and electric current to shake in pluse output circuit
It swings, the saturation for preventing the magnetic core of pulse transformer T from being repeated in discharge process and reset；The vice-side winding of pulse transformer T with
It connects with resistance R after the parallel connection of long gap channel；The capacitance of first capacitance C1 be the 10 μ F of μ F~1000, charging voltage be 1kV~
50kV；Resistance R connects with the vice-side winding of pulse transformer T；The vice-side winding of pulse transformer T turns after exporting high-voltage pulse
It is changed to pulsactor, and adjusts the current waveform and current amplitude of big current loop output together with inductance Lo；To reduce pulse
The vice-side winding inductance of transformer T influences big current loop output current pulsewidth and current amplitude, the secondary side of pulse transformer T
The number of turns of winding is only 10~50 circles, since the number of turns of vice-side winding is limited, the charging voltage of the first capacitance C1 increase to 1kV~
The number of turns of 50kV, primary side winding are 1~5 circle；Primary side winding and vice-side winding are all made of high-voltage conducting wires coiling, and vice-side winding is in sky
Exportable voltage peak is about 20kV~300kV under the conditions of load；When electric discharge, the control terminal of thyristor SCR receives trigger command,
Second capacitance C2 discharges via the primary side winding of thyristor SCR pulse transformers T, the vice-side winding of pulse transformer T
After output high-voltage pulse makes short air gap channel edge flashing, short air gap channel edge flashing form conductive channel, pulse transforming
The magnetic core of device T is rapidly saturated, and the first capacitance C1 immediately puts short air gap channel by the vice-side winding of pulse transformer T, resistance R
Electricity, as short air gap channel electric arc melts the ablation of pipe wall material, the plasma of formation is sprayed to cathode terminal 2, to be sprayed
When plasma reaches cathode terminal 2, long gap channel is shorted, and forms the long arc through entire capillary channel, two gaps
Capillary discharging is completed.
Claims (7)
1. a kind of combination wave circuit for driving ablation-controlled arc to discharge, which is characterized in that including pluse output circuit and greatly
Current loop, pluse output circuit are connected with big current loop, and pluse output circuit completes the sudden strain of a muscle to capillary gap channel
Network punctures, and big current loop forms the afterflow to clearance channel after capillary channel breakdown, and passes through in capillary cavity body
High current is completed the ablation to microcapillary tube wall material and is melted；
When for three electrodes, two gap capillary pipe structure, the big current loop includes the first capacitance (C1), inductance (Lo), sun
Extremely (1), cathode terminal (2), target (3) and resistance (R), the pluse output circuit include pulse transformer (T), brilliant lock
Manage (SCR), diode (D) and the second capacitance (C2), wherein one end of primary side winding and diode (D) in pulse transformer (T)
Anode and one end of the second capacitance (C2) be connected, the other end of the second capacitance (C2) and the cathode of diode (D) and brilliant lock
The anode of pipe (SCR) is connected, and the cathode of thyristor (SCR) is connected with the other end of primary side winding in pulse transformer (T),
Target (3) is connected with one end of vice-side winding in pulse transformer (T), and vice-side winding is another in pulse transformer (T)
One end is connected with one end of cathode terminal (2) and resistance (R), the other end of resistance (R) and one end ground connection of the first capacitance (C1),
The other end of first capacitance (C1) is connected with one end of inductance (Lo), and the other end of inductance (Lo) is connected with anode tap (1).
2. the combination wave circuit according to claim 1 for driving ablation-controlled arc to discharge, which is characterized in that pulse becomes
The number of turns of vice-side winding is 10-50 circles in depressor (T), and the number of turns of primary side winding is 1-5 circles in pulse transformer (T).
3. the combination wave circuit according to claim 1 for driving ablation-controlled arc to discharge, which is characterized in that pulse becomes
The output voltage of depressor (T) is 20kV~300kV.
4. the combination wave circuit according to claim 1 for driving ablation-controlled arc to discharge, which is characterized in that the second electricity
The capacity for holding (C2) is the μ F of 100nF~10, and charging voltage is 2kV~20kV.
5. the combination wave circuit according to claim 1 for driving ablation-controlled arc to discharge, which is characterized in that the first electricity
The capacitance for holding (C1) is the 10 μ F of μ F~1000, and charging voltage is 1kV~50kV.
6. the combination wave circuit according to claim 1 for driving ablation-controlled arc to discharge, which is characterized in that inductance
(Lo) inductance value is 1 μ of μ F~100 F.
7. the combination wave circuit according to claim 1 for driving ablation-controlled arc to discharge, which is characterized in that resistance
(R) resistance value is the Ω of 0.1 Ω~10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610256978.3A CN105763096B (en) | 2016-04-22 | 2016-04-22 | A kind of combination wave circuit for driving ablation-controlled arc to discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610256978.3A CN105763096B (en) | 2016-04-22 | 2016-04-22 | A kind of combination wave circuit for driving ablation-controlled arc to discharge |
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| Publication Number | Publication Date |
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| CN105763096A CN105763096A (en) | 2016-07-13 |
| CN105763096B true CN105763096B (en) | 2018-07-17 |
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Families Citing this family (4)
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| CN108322988A (en) * | 2018-04-12 | 2018-07-24 | 西安交通大学 | A kind of commutation switch device suitable for flexible DC power transmission dc circuit breaker |
| CN112118664B (en) * | 2020-09-08 | 2021-11-19 | 西安交通大学 | Double-path single-gap plasma jet device and application thereof |
| CN112230134B (en) * | 2020-09-08 | 2021-07-13 | 西安交通大学 | Capillary tube double-path trigger device for series gap and application thereof |
| CN113347774A (en) * | 2021-05-24 | 2021-09-03 | 西安交通大学 | Bipolar continuous capillary plasma jet trigger device and trigger method |
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| CN102523675A (en) * | 2011-12-13 | 2012-06-27 | 西安交通大学 | Plasma ejection device for igniting long air spark gap and circuit thereof |
| CN102938968A (en) * | 2012-11-12 | 2013-02-20 | 西安交通大学 | Circuit for triggering two-gap plasma jet apparatus |
| CN103151189A (en) * | 2013-02-04 | 2013-06-12 | 中国人民解放军海军工程大学 | Electromagnetic-repulsion-driven high-speed piston type interrupter |
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