CN102158117B - Pulse power system based on coupling of transmission line transformer (TLT) and multi-switch drive variable resistance lines - Google Patents
Pulse power system based on coupling of transmission line transformer (TLT) and multi-switch drive variable resistance lines Download PDFInfo
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- CN102158117B CN102158117B CN 201110072045 CN201110072045A CN102158117B CN 102158117 B CN102158117 B CN 102158117B CN 201110072045 CN201110072045 CN 201110072045 CN 201110072045 A CN201110072045 A CN 201110072045A CN 102158117 B CN102158117 B CN 102158117B
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Abstract
The invention discloses a pulse power system based on coupling of a transmission line transformer (TLT) and multi-switch drive variable resistance lines, comprising a multi-level TLT switch pulse system, loads and the variable resistance lines which are connected with the multi-level TLT switch pulse system and loads. Before the variable resistance lines are driven, the pulse power system uses the TLT to multiply a voltage by several times primarily so as to obtain a higher output voltage and reduce energy consumption; due to cooperative work of the multiple switches, the service life of the switches can be prolonged; and one switch is conducted, the rest switches are automatically triggered to synchronously carry out over-voltage conduction without using complicatedly external trigger devices, and the synchronous process is simple and clear as well as reliable, therefore, the pulse power system can be widely applied to the fields related to pulse power technologies, such as military, exploration, medical treatment, power sources, environments and the like.
Description
Technical field
The invention belongs to the Pulse Power Techniques field, be specifically related to a kind of based on the be coupled pulse power system of many switch drive variable resistance line of line transformer.
Background technology
Pulse Power Techniques are that energy is compressed at room and time, so that within the extremely short time, can discharge a large amount of energy to produce the emerging technology of specific physics or chemical effect, be widely used in the fields such as military affairs, exploration, medical treatment, the energy, environment.
Conventional pulse power system spatially compresses energy the capacitive device high-voltage charging, by the fast conducting discharge of Closing Switch, in time energy is compressed.General capacitive device charges by transformer, but considers cost and the volume of transformer, and the insulating protection requirement, and elementary charging voltage has certain limitation.
Needing under the occasion of high voltage output, it is to utilize the rapid on state characteristic of switch to make in parallel capacitive device moment convert series connection to that a class pulse power system is arranged at present, to obtain the stack of voltage.But use many switching transients switch technology to require very harsh to the synchronism of switch, conducting time-delay between the different switches must be controlled at nanosecond order, therefore need to adopt external circuits for triggering to guarantee the synchronous conducting of switch, this has just increased cost and the complexity of system, when number of switches was more, technical difficulty can be very large.
Another kind of pulse power system is to adopt impedance transmission line (being called for short the variable resistance line), utilizes variable resistance line self unmatched characteristic everywhere, and constantly reflection vibration in voltage wave is online obtains the rising output of voltage at last.Although adopt the variable resistance line to obtain higher Voltage-output from lower voltage input, because of the not matching properties of itself, its energy loss also is very huge.
Summary of the invention
The invention provides a kind of based on the be coupled pulse power system of many switch drive variable resistance line of line transformer, by line transformer (TLT, Transmission Line Transformer) many switch drive of coupling variable resistance line, solve above-mentioned technical barrier, can obtain reliable high-voltage pulse output.
A kind of based on the be coupled pulse power system of many switch drive variable resistance line of line transformer, comprise that multistage TLT switching pulse system, load be connected the variable resistance line of TLT switching pulse system and load with connection.
Described multistage TLT switching pulse system is comprised of n TLT switching pulse device, and n is progression, and n is the natural number more than or equal to 2;
Described TLT switching pulse device is connected and composed successively by capacitive character accumulator, Closing Switch and TLT; Wherein, one end of described capacitive character accumulator is the first input end of described TLT switching pulse device, the another end of described capacitive character accumulator links to each other with the first end of described Closing Switch, the second end of described Closing Switch links to each other with an end of the inner conductor of described TLT, one end of the outer contact of described TLT is the second input of described TLT switching pulse device, the another end of the inner conductor of described TLT is the first output of described TLT switching pulse device, the another end of the outer contact of described TLT is the second output of described TLT switching pulse device, described capacitive character accumulator is accepted outside primary source it is charged, and the control end of described Closing Switch receives the triggering signal that external equipment provides;
Described TLT is comprised of some transmission lines; Wherein, the continuous end that consists of the inner conductor of described TLT of one end of the inner conductor of all transmission lines, the continuous end that consists of the outer contact of described TLT of one end of the outer contact of all transmission lines, the continuous another end that consists of the inner conductor of described TLT of the another end of the inner conductor of all transmission lines, the continuous another end that consists of the outer contact of described TLT of the another end of the outer contact of all transmission lines;
The first input end of i level TLT switching pulse device links to each other with the second input of (i-1) level TLT switching pulse device, the second input of i level TLT switching pulse device links to each other with the first input end of (i+1) level TLT switching pulse device, and the first input end of first order TLT switching pulse device links to each other with the second input of n level TLT switching pulse device; The output of output to the n level TLT switching pulse device of first order TLT switching pulse device is serial or parallel connection successively, and the connected mode of series connection is that the second output of upper level TLT switching pulse device links to each other with the first output of next stage TLT switching pulse device; Connected mode in parallel is that the first output of all TLT switching pulse devices links to each other, and the second output of all TLT switching pulse devices links to each other; The first output of first order TLT switching pulse device is the first output of described multistage TLT switching pulse system, the second output of n level TLT switching pulse device is the second output of described multistage TLT switching pulse system, and i is less than n and greater than 1 natural number;
The first output of described multistage TLT switching pulse system links to each other with the input of the inner conductor of described variable resistance line, the second output of described multistage TLT switching pulse system links to each other with the input of the outer contact of described variable resistance line, the output of the inner conductor of described variable resistance line links to each other with an end of described load, and the output of the outer contact of described variable resistance line links to each other with the another end of described load.
Described transmission line can be coaxial transmission line, Plate-Transmission-Line, ribbon feeder, aqueous medium transmission line or variable resistance line etc.In the preferred technical scheme, described transmission line is coaxial transmission line, compact conformation, dependable performance.
Described transmission line overcoat soft magnetism magnet ring can increase the secondary impedance of TLT.Described soft magnetism magnet ring can be ferrite bead, noncrystal magnet ring, nanocrystal magnet ring, permalloy magnet ring, silicon steel magnet ring or ferrocart core magnet ring etc.In the preferred technical scheme, described soft magnetism magnet ring is ferrite bead or noncrystal magnet ring, can increase the secondary impedance in loop, and energy loss is low.
Described capacitive character accumulator can be high-voltage capacitance, pulse forming line, Blumlein line, LC pulse forming network or Marx generator etc.In the preferred technical scheme, described capacitive character accumulator is the Marx generator, can significantly reduce charging voltage, reduces the requirement to primary source, has also reduced insulating protection intensity.
Described Closing Switch can be spark switch, counterfeit spark switch, hydrogen thyratron, ignitron, thyristor, IGBT (insulated gate bipolar transistor), RSD (reverse switch transistor), IGCT (integrated gate commutated thyristor), MOSFET (metal-oxide half field effect transistor) or magnetic switch etc.In the preferred technical scheme, described Closing Switch is spark switch, and is cheap, and ducting capacity is strong.
Described variable resistance line can be dull and stereotyped variable resistance line, coaxial variable resistance line or non-uniform dielectric variable resistance line etc.In the preferred technical scheme, described variable resistance line is dull and stereotyped variable resistance line, makes simply the parameter flexible adjustment.
Described load can be resistive load, capacity load, reactive load, gas medium, solid dielectric, liquid medium, vacuum reactor, plasma reactor, metallic explosive silk, pulse forming line, vacuum cathode pipe, laser or radar antenna etc.
Operation principle of the present invention is: after the capacitive character charging accumulator was finished, because of the coupling of TLT, arbitrary Closing Switch conducting all can trigger the synchronous overvoltage conducting of remaining Closing Switch automatically.Usually a Closing Switch is carried out simple external triggering, can both work after the each charging of multistage TLT switching pulse system guaranteeing, when all Closing Switch all after the conducting, the capacitive character accumulator drives the variable resistance lineman by TLT and does, and obtains high-voltage pulse output.
Of the present invention based on the be coupled pulse power system of many switch drive variable resistance line of line transformer, by the collaborative work of many switches, prolonged the useful life of switch; One switch conduction triggers the synchronous overvoltage conducting of all the other many switches automatically, need not complicated external trigger device, and synchronizing process is concisely reliable; Before driving the variable resistance line, utilize TLT with the voltage several times that tentatively raise, can obtain higher output voltage, and energy loss is lower; By simple change TLT output connected mode, can obtain the high-voltage pulse of different output characteristic.
Description of drawings
Fig. 1 is the structural principle schematic diagram of the pulse power system of the embodiment of the invention 1.
Fig. 2 is the structural principle schematic diagram of the pulse power system of the embodiment of the invention 2.
Fig. 3 is the structural principle schematic diagram of the pulse power system of the embodiment of the invention 3.
Fig. 4 is the structural principle schematic diagram of the pulse power system of the embodiment of the invention 4.
Embodiment
In order more specifically to describe the present invention, below in conjunction with the drawings and the specific embodiments technical scheme of the present invention and relative theory thereof are elaborated.
As shown in Figure 1, a kind of based on the be coupled pulse power system of many switch drive variable resistance line of line transformer, comprise three grades of TLT switching pulse systems, resistive loads 6 and be connected the coaxial variable resistance line 5 of three grades of TLT switching pulse systems and resistive load 6.
Three grades of TLT switching pulse systems are comprised of three TLT switching pulse devices.
TLT switching pulse device is connected and composed successively by high-voltage capacitance 1, spark switch 2 and TLT, and TLT is the coaxial transmission line 4 of an overcoat ferrite bead 3.Wherein, one end of high-voltage capacitance 1 is the first input end of TLT switching pulse device, the another end of high-voltage capacitance 1 links to each other with the first end of spark switch 2, the second end of spark switch 2 links to each other with an end of the inner conductor of coaxial transmission line 4, one end of the outer contact of coaxial transmission line 4 is the second input of TLT switching pulse device, the another end of the inner conductor of coaxial transmission line 4 is the first output of TLT switching pulse device, the another end of the outer contact of coaxial transmission line 4 is the second output of TLT switching pulse device, high-voltage capacitance 1 is accepted outside primary source it is charged, and the control end of spark switch 2 receives the triggering signal that external equipment provides.
The first input end of second level TLT switching pulse device links to each other with the second input of first order TLT switching pulse device, the second input of second level TLT switching pulse device links to each other with the first input end of third level TLT switching pulse device, the first input end of first order TLT switching pulse device links to each other with the second input of third level TLT switching pulse device, the first output of second level TLT switching pulse device links to each other with the second output of first order TLT switching pulse device, the second output of second level TLT switching pulse device links to each other with the first output of third level TLT switching pulse device, the first output of first order TLT switching pulse device is the first output of three grades of TLT switching pulse systems, and the second output of third level TLT switching pulse device is the second output of three grades of TLT switching pulse systems.
The first output of three grades of TLT switching pulse systems links to each other with the input of the inner conductor of coaxial variable resistance line 5, the second output of three grades of TLT switching pulse systems links to each other with the input of the outer contact of coaxial variable resistance line 5, the output of the inner conductor of coaxial variable resistance line 5 links to each other with an end of resistive load 6, and the output of the outer contact of coaxial variable resistance line 5 links to each other with the another end of resistive load 6.
The operation principle of present embodiment is: after high-voltage capacitance 1 charging was finished, because of the coupling of TLT, arbitrary spark switch 2 conductings all can trigger remaining spark switch 2 synchronous overvoltage conducting automatically.Usually a spark switch 2 is carried out simple external triggering, can both work after the charging to guarantee three grades of TLT switching pulse systems, to export about three times charging voltage at every turn; When all spark switchs 2 all after the conducting, high-voltage capacitance 1 drives coaxial variable resistance line 5 work by three grades of TLT, obtains the high pressure short pulse output far above three times of charging voltages.
As shown in Figure 2, a kind of based on the be coupled pulse power system of many switch drive variable resistance line of line transformer, comprise three grades of TLT switching pulse systems, resistive loads 6 and be connected the coaxial variable resistance line 5 of three grades of TLT switching pulse systems and resistive load 6.
Three grades of TLT switching pulse systems are comprised of three TLT switching pulse devices.
First order TLT switching pulse device is connected and composed successively by LC pulse forming network 7, IGBT8 and TLT, and TLT is the coaxial transmission line 4 of an overcoat ferrite bead 3.Wherein, one end of LC pulse forming network 7 is the first input end of first order TLT switching pulse device, the another end of LC pulse forming network 7 links to each other with the collector electrode of IGBT 8, the emitter of IGBT 8 links to each other with an end of the inner conductor of coaxial transmission line 4, one end of the outer contact of coaxial transmission line 4 is the second input of first order TLT switching pulse device, the another end of the inner conductor of coaxial transmission line 4 is the first output of first order TLT switching pulse device, the another end of the outer contact of coaxial transmission line 4 is the second output of first order TLT switching pulse device, LC pulse forming network 7 is accepted outside primary source it is charged, and the gate pole of IGBT 8 receives the triggering signal that external equipment provides.
The structure of second level TLT switching pulse device and third level TLT switching pulse device is identical with first order TLT switching pulse device structure, and just the Closing Switch of second level TLT switching pulse device and third level TLT switching pulse device is RSD9.
The first input end of second level TLT switching pulse device links to each other with the second input of first order TLT switching pulse device, the second input of second level TLT switching pulse device links to each other with the first input end of third level TLT switching pulse device, the first input end of first order TLT switching pulse device links to each other with the second input of third level TLT switching pulse device, the first output of second level TLT switching pulse device links to each other with the second output of first order TLT switching pulse device, the second output of second level TLT switching pulse device links to each other with the first output of third level TLT switching pulse device, the first output of first order TLT switching pulse device is the first output of three grades of TLT switching pulse systems, and the second output of third level TLT switching pulse device is the second output of three grades of TLT switching pulse systems.
The first output of three grades of TLT switching pulse systems links to each other with the input of the inner conductor of coaxial variable resistance line 5, the second output of three grades of TLT switching pulse systems links to each other with the input of the outer contact of coaxial variable resistance line 5, the output of the inner conductor of coaxial variable resistance line 5 links to each other with an end of resistive load 6, and the output of the outer contact of coaxial variable resistance line 5 links to each other with the another end of resistive load 6.
The operation principle of present embodiment is: after 7 chargings of LC pulse forming network are finished, trigger control IGBT8 conducting by external equipment, because of the coupling of TLT, can automatically trigger the synchronous overvoltage conducting of remaining RSD9, make three grades of TLT switching pulse systems export about three times charging voltage; When all semiconductor switchs all after the conducting, LC pulse forming network 7 drives coaxial variable resistance line 5 work by three grades of TLT, obtains the high pressure long-pulse output far above three times of charging voltages, and its pulse duration can be adjusted by the break-make of control IGBT8.
As shown in Figure 3, a kind of based on the be coupled pulse power system of many switch drive variable resistance line of line transformer, comprise three grades of TLT switching pulse systems, resistive loads 6 and be connected the dull and stereotyped variable resistance line 11 of three grades of TLT switching pulse systems and resistive load 6.
Three grades of TLT switching pulse systems are comprised of three TLT switching pulse devices.
TLT switching pulse device is connected and composed successively by three grades of Marx generators 12, spark switch 2 and TLT, and TLT is the coaxial transmission line 4 of a noncrystal magnet ring 10 of overcoat.Wherein, one end of three grades of Marx generators 12 is the first input end of TLT switching pulse device, the another end of three grades of Marx generators 12 links to each other with the first end of spark switch 2, the second end of spark switch 2 links to each other with an end of the inner conductor of coaxial transmission line 4, one end of the outer contact of coaxial transmission line 4 is the second input of TLT switching pulse device, the another end of the inner conductor of coaxial transmission line 4 is the first output of TLT switching pulse device, the another end of the outer contact of coaxial transmission line 4 is the second output of TLT switching pulse device, three grades of Marx generators 12 are accepted outside primary source it are charged, and the control end of spark switch 2 receives the triggering signal that external equipment provides.
The first input end of second level TLT switching pulse device links to each other with the second input of first order TLT switching pulse device, the second input of second level TLT switching pulse device links to each other with the first input end of third level TLT switching pulse device, the first input end of first order TLT switching pulse device links to each other with the second input of third level TLT switching pulse device, the first output of second level TLT switching pulse device links to each other with the second output of first order TLT switching pulse device, the second output of second level TLT switching pulse device links to each other with the first output of third level TLT switching pulse device, the first output of first order TLT switching pulse device is the first output of three grades of TLT switching pulse systems, and the second output of third level TLT switching pulse device is the second output of three grades of TLT switching pulse systems.
The first output of three grades of TLT switching pulse systems links to each other with the input of the top conductor of dull and stereotyped variable resistance line 11, the second output of three grades of TLT switching pulse systems links to each other with the input of lower floor's conductor of dull and stereotyped variable resistance line 11, the output of the top conductor of dull and stereotyped variable resistance line 11 links to each other with an end of resistive load 6, and the output of lower floor's conductor of dull and stereotyped variable resistance line 11 links to each other with the another end of resistive load 6.
The operation principle of present embodiment is: after 12 chargings of three grades of Marx generators are finished, can produce the short pulse that is three times in charging voltage, because of the coupling of TLT, arbitrary spark switch 2 conductings all can trigger remaining spark switch 2 synchronous overvoltage conducting automatically.Usually a spark switch 2 is carried out simple external triggering, can both work after the charging to guarantee three grades of TLT switching pulse systems, to export about nine times charging voltage at every turn; When all spark switchs 2 all after the conducting, three grades of Marx generators 12 drive dull and stereotyped variable resistance line 11 work by three grades of TLT, obtain the high pressure short pulse output far above nine times of charging voltages.
As shown in Figure 4, a kind of based on the be coupled pulse power system of many switch drive variable resistance line of line transformer, comprise three grades of TLT switching pulse systems, resistive loads 6 and be connected the coaxial variable resistance line 5 of three grades of TLT switching pulse systems and resistive load 6.
Three grades of TLT switching pulse systems are comprised of three TLT switching pulse devices.
TLT switching pulse device is connected and composed successively by high-voltage capacitance 1, spark switch 2 and TLT, and TLT is the coaxial transmission line 4 of an overcoat ferrite bead 3.Wherein, one end of high-voltage capacitance 1 is the first input end of TLT switching pulse device, the another end of high-voltage capacitance 1 links to each other with the first end of spark switch 2, the second end of spark switch 2 links to each other with an end of the inner conductor of coaxial transmission line 4, one end of the outer contact of coaxial transmission line 4 is the second input of TLT switching pulse device, the another end of the inner conductor of coaxial transmission line 4 is the first output of TLT switching pulse device, the another end of the outer contact of coaxial transmission line 4 is the second output of TLT switching pulse device, high-voltage capacitance 1 is accepted outside primary source it is charged, and the control end of spark switch 2 receives the triggering signal that external equipment provides.
The first input end of second level TLT switching pulse device links to each other with the second input of first order TLT switching pulse device, the second input of second level TLT switching pulse device links to each other with the first input end of third level TLT switching pulse device, and the first input end of first order TLT switching pulse device links to each other with the second input of third level TLT switching pulse device; The first output of first order TLT switching pulse device links to each other with the first output of second level TLT switching pulse device and the first output of third level TLT switching pulse device; The second output of first order TLT switching pulse device links to each other with the second output of second level TLT switching pulse device and the second output of third level TLT switching pulse device; The first output of first order TLT switching pulse device is the first output of three grades of TLT switching pulse systems, and the second output of third level TLT switching pulse device is the second output of three grades of TLT switching pulse systems.
The first output of three grades of TLT switching pulse systems links to each other with the input of the inner conductor of coaxial variable resistance line 5, the second output of three grades of TLT switching pulse systems links to each other with the input of the outer contact of coaxial variable resistance line 5, the output of the inner conductor of coaxial variable resistance line 5 links to each other with an end of resistive load 6, and the output of the outer contact of coaxial variable resistance line 5 links to each other with the another end of resistive load 6.
The operation principle of present embodiment is: after high-voltage capacitance 1 charging was finished, because of the coupling of TLT, arbitrary spark switch 2 conductings all can trigger remaining spark switch 2 synchronous overvoltage conducting automatically.Usually a spark switch 2 is carried out simple external triggering, can both work after the charging to guarantee three grades of TLT switching pulse systems at every turn, by the parallel connection of TLT output, the electric current when working to obtain being three times in approximately single high-voltage capacitance 1; When all spark switchs 2 all after the conducting, high-voltage capacitance 1 drives coaxial variable resistance line 5 work by three grades of TLT, obtains the high-voltage pulse output of large electric current.
Claims (2)
1. one kind based on the be coupled pulse power system of many switch drive variable resistance line of line transformer, it is characterized in that: comprise that multistage TLT switching pulse system, load be connected the variable resistance line of TLT switching pulse system and load with connection, described variable resistance line is dull and stereotyped variable resistance line;
Described multistage TLT switching pulse system is comprised of n TLT switching pulse device, and n is progression, and n is the natural number more than or equal to 2;
Described TLT switching pulse device is connected and composed successively by capacitive character accumulator, Closing Switch and TLT; Wherein, one end of described capacitive character accumulator is the first input end of described TLT switching pulse device, the another end of described capacitive character accumulator links to each other with the first end of described Closing Switch, the second end of described Closing Switch links to each other with an end of the inner conductor of described TLT, one end of the outer contact of described TLT is the second input of described TLT switching pulse device, the another end of the inner conductor of described TLT is the first output of described TLT switching pulse device, the another end of the outer contact of described TLT is the second output of described TLT switching pulse device, described capacitive character accumulator is accepted outside primary source it is charged, and the control end of described Closing Switch receives the triggering signal that external equipment provides;
Described Closing Switch is spark switch, and described capacitive character accumulator is the Marx generator;
Described TLT is comprised of some transmission lines; Wherein, the continuous end that consists of the inner conductor of described TLT of one end of the inner conductor of all transmission lines, the continuous end that consists of the outer contact of described TLT of one end of the outer contact of all transmission lines, the continuous another end that consists of the inner conductor of described TLT of the another end of the inner conductor of all transmission lines, the continuous another end that consists of the outer contact of described TLT of the another end of the outer contact of all transmission lines;
Described transmission line overcoat soft magnetism magnet ring, described transmission line is coaxial transmission line, described soft magnetism magnet ring is ferrite bead;
The first input end of i level TLT switching pulse device links to each other with the second input of i-1 level TLT switching pulse device, the second input of i level TLT switching pulse device links to each other with the first input end of i+1 level TLT switching pulse device, and the first input end of first order TLT switching pulse device links to each other with the second input of n level TLT switching pulse device; The output of output to the n level TLT switching pulse device of first order TLT switching pulse device is serial or parallel connection successively, and the connected mode of series connection is that the second output of upper level TLT switching pulse device links to each other with the first output of next stage TLT switching pulse device; Connected mode in parallel is that the first output of all TLT switching pulse devices links to each other, and the second output of all TLT switching pulse devices links to each other; The first output of first order TLT switching pulse device is the first output of described multistage TLT switching pulse system, the second output of n level TLT switching pulse device is the second output of described multistage TLT switching pulse system, and i is less than n and greater than 1 natural number;
The first output of described multistage TLT switching pulse system links to each other with the input of the inner conductor of described variable resistance line, the second output of described multistage TLT switching pulse system links to each other with the input of the outer contact of described variable resistance line, the output of the inner conductor of described variable resistance line links to each other with an end of described load, and the output of the outer contact of described variable resistance line links to each other with the another end of described load.
2. according to claim 1 based on the be coupled pulse power system of many switch drive variable resistance line of line transformer, it is characterized in that: described load is resistive load or capacity load.
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| CN104242887B (en) * | 2014-09-18 | 2017-04-12 | 中国工程物理研究院流体物理研究所 | Plasma electro-optical switch driving circuit based on pulsed hydrogen thyratron and low-impedance cable Blumlein pulse-forming line |
| CN106787924B (en) * | 2016-11-30 | 2019-03-15 | 中国人民解放军国防科学技术大学 | A kind of long pulsewidth quasi-square wave impulse generator of high voltage |
| CN106941346B (en) * | 2017-04-20 | 2019-09-24 | 重庆大学 | Modular solid-state millimicrosecond pulse generator based on PCBBlumlein transmission line and PCB line transformer |
| CN110545089B (en) * | 2019-09-05 | 2021-06-18 | 西南交通大学 | Pulse forming circuit and LTD module |
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