CN204119189U - A kind of high power repetition rate fast pulse linear type transformer driving source - Google Patents
A kind of high power repetition rate fast pulse linear type transformer driving source Download PDFInfo
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- CN204119189U CN204119189U CN201420466927.XU CN201420466927U CN204119189U CN 204119189 U CN204119189 U CN 204119189U CN 201420466927 U CN201420466927 U CN 201420466927U CN 204119189 U CN204119189 U CN 204119189U
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Abstract
The utility model provides a kind of high power repetition rate fast pulse linear type transformer driving source.Comprise repetition rate LTD module, and coupled respectively charhing unit, trigger element, degaussing unit and ventilating unit, each part of described transformer driving source completes one-off within the 10s time, and returns to standby condition.More than 100GW high power 0.1Hz repetition rate fast pulse can be realized export, thus the repetitive frequency pulsed output of long-time continuous is realized under based on more than 100GW high power transformer drive source, more be conducive to the exploitation of nuclear power source, and realize more than 100GW high power and can lower nuclear power source development cost further, and reduce the volume of nuclear power source development device.
Description
Technical field
The utility model relates to a kind of high power repetition rate fast pulse linear type transformer driving source, particularly relates to a kind of high power repetition rate fast pulse linear type transformer driving source be applicable in nuclear power source development field.
Background technology
At nuclear power source development field, fast pulse linear type transformer driving source (linear transformer driver, LTD) be that Russian high current electronics research institute proposes and the topological structure of a kind of new high power pulse generation grown up, energy storage capacitor breaks the whole up into parts by its employing, the mode of multi-channel parallel directly realizes the output of high power fast pulse.Fast pulse LTD compact conformation, realize the output of ultra high power fast pulse easily through the combination of module; There is stronger fault-tolerant ability, output waveform regulating power and repetitive operation ability, become the developing direction of High pulse power technology research of new generation.
Prior art research shows, the high power pulse drive source that the energy development in nuclear power source field adopts must possess the ability of 0.1Hz repetitive operation.
High current electronics research institute of Russia, Sandia National Laboratory of the U.S. etc. have carried out the research work of fast pulse LTD technology in succession in a deep going way, achieve the generation ability that single produces and 500kA/100kV high power 0.1Hz is repetitive frequency pulsed of 1MA/500kV high power pulse.Can produce repetitive frequency pulsed within a certain period of time continuously, but the high power requirement of more than 100GW cannot be met.
The unit such as China Engineering Physics Research Institute, Xibei Nuclear Techn Inst has carried out the research of fast pulse LTD technology, and the single achieving 100GW high power pulse produces and count the 25Hz repetition rate output of GW pulse power.But cannot realize 100GW high-power under, the generation ability that 0.1Hz is repetitive frequency pulsed.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of line style transformer driving source that can realize more than 100GW high power 0.1Hz repetition rate fast pulse and directly export.
The technical solution adopted in the utility model is as follows: a kind of high power repetition rate fast pulse linear type transformer driving source, comprise repetition rate LTD module, and charhing unit, trigger element, degaussing unit and ventilating unit that difference is coupled, described repetition rate LTD module comprises multiple branch road and magnetic core, and each branch road comprises the first capacitor, the first switch and the second capacitor that are connected successively; Described two capacitors, one is connected with positive voltage constant-current source, and another is connected with the negative voltage constant-current source of same amplitude; Also comprise load resistance, the electric current of each branch road to be flow through Energy Coupling after negative voltage capacitor through straight line transformer to load resistance through the first switch by positive voltage capacitor; It is characterized in that:
Described magnetic core is toroidal core, and multiple branch road is evenly arranged on one week of toroidal core;
Described two capacitors, one is connected with+100kV constant-current source, and another is connected with-100kV constant-current source.
As preferably, described multiple branch road is 34 branch roads, and wherein each shunt inductance is 220nH, and capacitance is 20nF.
As preferably, described first switch is ultraviolet preionization switch.
As preferably, described trigger element comprises constant-current supply, and by the pulse-generating circuit that charging isolation resistance is connected with constant-current supply, described pulse-generating circuit is connected with multiple branch roads of described repetition rate LTD module respectively by transmission line.
As preferably, described pulse-generating circuit comprises the second switch, the 3rd electric capacity and the build-out resistor that are connected to form loop successively.
As preferably, described second switch is hydrogen thyratron.
As preferably, described degaussing unit comprises two identical constant-current supplies of amplitude: positive supply constant-current supply and negative supply constant-current supply; Described positive supply constant-current supply is connected with repetition rate LTD module with the first cable by the 4th electric capacity, the first current-limiting resistance successively, for one group of magnetic core degaussing to repetition rate LTD module; Described negative supply constant-current supply is connected with repetition rate LTD module with the second cable by the 5th electric capacity, the second current-limiting resistance successively, for another group magnetic core degaussing to repetition rate LTD module; The 3rd switch is connected with between described 4th electric capacity and the high-pressure side of the 5th electric capacity.
As preferably, also comprise the first inductance be connected between the first cable and repetition rate LTD module.
As preferably, also comprise the second inductance be connected between the second cable and repetition rate LTD module.
As preferably, described 3rd switch is hydrogen thyratron.
Compared with prior art, the beneficial effects of the utility model are: can realize more than 100GW high power 0.1Hz repetition rate fast pulse and export, thus the repetitive frequency pulsed output of long-time continuous is realized under based on more than 100GW high power transformer drive source, more be conducive to the exploitation of nuclear power source, and realize more than 100GW high power and can lower nuclear power source development cost further, and reduce the volume of nuclear power source development device.
Accompanying drawing explanation
Fig. 1 is the utility model structural principle block diagram.
Fig. 2 is the structural profile schematic diagram of the LTD module of the utility model wherein in an embodiment.
Fig. 3 is LTD module schematic equivalent circuit embodiment illustrated in fig. 2.
Fig. 4 is the trigger element circuit theory schematic diagram of the utility model wherein embodiment.
Fig. 5 is the degaussing unit circuit theory schematic diagram of the utility model wherein embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Arbitrary feature disclosed in this specification (comprising any accessory claim, summary and accompanying drawing), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
This specific embodiment is to realize being exported higher than the high voltage pulse of 100GW to the 0.1Hz repetition rate in load, peak power by primary energy capacitor, and producing 1MA/100kV high voltage pulse is that example is specifically described.
As shown in Figure 1,2 and 3, high power repetition rate fast pulse linear type transformer driving source, comprise repetition rate LTD module, and charhing unit, trigger element, degaussing unit and ventilating unit that difference is coupled, described repetition rate LTD module comprises multiple branch road and magnetic core, and each branch road comprises the first capacitor C1, the first K switch 1 and the second capacitor C2 that are connected successively; Described two capacitors, one is connected with positive voltage constant-current source, and another is connected with the negative voltage constant-current source of same amplitude; Also comprise load resistance R1, the electric current of each branch road to be flow through Energy Coupling after negative voltage capacitor through straight line transformer to load resistance through the first K switch 1 by positive voltage capacitor; Wherein, each part of described transformer driving source completes one-off within the 10s time, and returns to standby condition; Described magnetic core is toroidal core, and multiple branch road is evenly arranged on one week of toroidal core; Described two capacitors, one is connected with+100kV constant-current source, and another is connected with-100kV constant-current source, is the high direct voltage that+100kV and-100kV filled respectively with by two capacitors; Charhing unit, completes the charging of the capacitor to multiple branch road within the 5s time; Trigger element, completes and once triggers and preparation in 10s; Degaussing unit, completes a degaussing action in 10s; Ventilating unit, time of exchanging gas is less than 5s.
When the first K switch 1 triggering and conducting, the electric current of each branch road to flow through most of Energy Coupling after negative voltage capacitor through straight line transformer on load resistance R1 by positive voltage capacitor through switch, and matched load forms big current.
In this specific embodiment, described multiple branch road is 34 branch roads; Export to obtain larger current, the electrical design of circuit needs low inductor design, and each shunt inductance is 220nH, and capacitance is 20nF.34 branch roads are distributed on toroidal core, are equivalent to 34 primary, when all branch roads discharge simultaneously share one secondary, i.e. matched load resistance R1.The matched load resistance R1 of 34 branch roads is according to R=(1/34) × (L/C)
1/2=(1/34) × (220/20)
1/2=0.1 Ω; Convergence electric current on matched load resistance R1 is according to I=0.55V/R=0.55 × 200kV/0.1 Ω=1.1MA.The High-current output of the 1MA of final realization on matched load, its pulse rise time is according to formula t=1.21 × (L/C)
1/2knownly be about 80ns.
The technical barrier that repetition rate LTD module itself realizes the output of 0.1Hz repetition rate is within the 10s time, to complete the charging and discharging process to capacitor, also to ensure that the first K switch 1 can be born when the next 10s time starts ± DC break down voltage of 100kV, and can not self breakdown conducting, this just requires that the insulating gas in switch will be ionized from electric discharge in 10s and returns to state of insulation, adopts wanting in seeking time, the insulating gas be ionized to be replaced by new insulating gas to realize.
In this specific embodiment, described first K switch 1 is ultraviolet preionization switch, relatively low conducting inductance and lower trigger voltage, can better reduce loop inductance and export big current, improve module operation stability simultaneously.
Charhing unit is primarily implemented in the 5s time charging tasks of the capacitor completed whole 34 branch roads of module.Each branch road comprises two capacitors, under 0.1Hz operational environment, in order to ensure ultraviolet preionization switch reliably working, deduction 5s switch time of exchanging gas, the module charging interval is only 5 seconds, and the constant-current supply choosing the 100kV meeting 5 seconds charging intervals according to the relation formula UC=It of capacitor charge time and charging current realizes.
As shown in Figure 4, described trigger element comprises constant-current supply, and by the pulse-generating circuit that charging isolation resistance is connected with constant-current supply, described pulse-generating circuit is connected with multiple branch roads of described repetition rate LTD module respectively by transmission line.Trigger element provides triggering signal for ultraviolet preionization switches all in LTD module.LTD module has the ultraviolet preionization switch of 34 ± 100kV, for the low jitter realizing gas switch reliably triggers, trigger element output amplitude is greater than 60kV, forward position is about the high-voltage pulse of 50ns, trigger 34 switches flow through equal length transmission line in module after simultaneously, realize the synchronous object triggered.In order to realize 0.1Hz repetitive operation need selected by device and switch all to complete in 10s preparation and one action.Select the switching tube that can be operated under the repetition rate being not less than 0.1Hz, stable.Therefore trigger element can ensure the requirement of 0.1Hz repetitive operation.
Described pulse-generating circuit comprises the second switch K2, the 3rd electric capacity C3 and build-out resistor R2 that are connected to form loop successively.General principle be the 3rd capacitor C3 by constant-current source quick charge to 60kV, second switch K2 is fast conducting under the effect of prime trigger impulse, elementary electric capacity C3 discharges over the ground through second switch K2, because the 3rd electric capacity C3 both end voltage can not be suddenlyd change, between C3 and R2, produce the 60kV electric pulse of fast rise time.Charge power supply adopts constant-current supply that capacitor is charged to 60kV needs 0.5s.
In this specific embodiment, described second switch is hydrogen thyratron, and need not process the dielectric of its inside under can being operated in the repetition rate of kHz, the triggering of second switch K2 itself only needs low voltage pulse signal, stable.Therefore trigger element can ensure the requirement of 0.1Hz repetitive operation.
As shown in Figure 5, described degaussing unit is for the magnetic core in LTD module provides repetition rate degaussing reset work, ensures that each LTD module front magnetic core that at every turn discharges resets to excited state by saturation condition.Requiring to complete degaussing task before LTD module discharge, in order to meet repetitive operation, needing to complete a degaussing action within the 10s cycle.Comprise two constant-current supplies that amplitude is identical: positive supply constant-current supply and negative supply constant-current supply; Described positive supply constant-current supply is connected with repetition rate LTD module with the first cable T1 by the 4th electric capacity C4, the first current-limiting resistance R4 successively, for one group of magnetic core degaussing to repetition rate LTD module; Described negative supply constant-current supply is connected with repetition rate LTD module with the second cable T2 by the 5th electric capacity C5, the second current-limiting resistance R5 successively, for another group magnetic core degaussing to repetition rate LTD module; The 3rd K switch 3 is connected with between described 4th electric capacity and the high-pressure side of the 5th electric capacity.
Described 3rd switch is hydrogen thyratron.In this specific embodiment, have four identical magnetic cores, be divided into two groups in LTD module, degaussing needs opposite polarity two-way degaussing pulse respectively to two groups of magnetic core degaussings, and each road current peak is greater than 5kA, and the duration is greater than 10 μ s.Consider that the symmetry of degaussing object adopts symmetrical structure degausser, can output polarity current waveform identical two-way demagnetizing current pulse on the contrary mutually simultaneously.After constant-current charging power (± 40kV/10mA) fills opposite polarity voltage (40kV) with to the high voltage energy-storage capacitor (C4, C5) being respectively 880nF within the 3.5s time, hydrogen thyratron conducting, demagnetizing current source exports pulse and is fed to LTD module through two-way output cable (T1, T2).Under switch hydrogen thyratron can be operated in the repetition rate of kHz, ensure 0.1Hz repetitive operation demand.
Also comprise the first inductance be connected between the first cable and repetition rate LTD module; Also comprise the second inductance be connected between the second cable and repetition rate LTD module.Isolation inductance (L1, L2) is for the high_voltage isolation between LTD module and degaussing power supply, and the high-voltage pulse feed-in degaussing electric power loop avoiding the electric discharge of LTD module major loop to produce causes damage.
Complete degaussing unit charging and repetition rate LTD module ventilation work before start in the 5s time, when 5s, degaussing unit has discharged to the reset work of LTD module core; Within second 5s time, complete trigger element charging and LTD module charging work, when 10s, trigger element electric discharge produces trigger pulse triggers repetition rate LTD module, and repetition rate LTD module discharge produces high-voltage pulse, completes the work of one-period; 3rd 5s repeats the work in first 5s time, and the 4th 5s repeats the work in second 5s time, the object run and achieve 0.1Hz repetition rate 100GW high power high-voltage pulse and export of going round and beginning again like this.
This specific embodiment achieve a kind of modularization, can the high power fast pulse linear type transformer driving source of repetitive operation, realize peak power to export higher than the fast pulse of 100GW, 0.1Hz repetitive operation, voltage peak 100kV, current peak 1MA, pulse rise time is less than 100ns.
Claims (10)
1. a high power repetition rate fast pulse linear type transformer driving source, comprise repetition rate LTD module, and charhing unit, trigger element, degaussing unit and ventilating unit that difference is coupled, described repetition rate LTD module comprises multiple branch road and magnetic core, and each branch road comprises the first capacitor, the first switch and the second capacitor that are connected successively; Described two capacitors, one is connected with positive voltage constant-current source, and another is connected with the negative voltage constant-current source of same amplitude; Also comprise load resistance, the electric current of each branch road to be flow through Energy Coupling after negative voltage capacitor through straight line transformer to load resistance through the first switch by positive voltage capacitor; It is characterized in that:
Described magnetic core is toroidal core, and multiple branch road is evenly arranged on one week of toroidal core;
Described two capacitors, one is connected with+100kV constant-current source, and another is connected with-100kV constant-current source.
2. high power repetition rate fast pulse linear type transformer driving source according to claim 1, is characterized in that: described multiple branch road is 34 branch roads, and wherein each shunt inductance is 220nH, and capacitance is 20nF.
3. high power repetition rate fast pulse linear type transformer driving source according to claim 1, is characterized in that: described first switch is ultraviolet preionization switch.
4. high power repetition rate fast pulse linear type transformer driving source according to claim 1, is characterized in that: described trigger element comprises constant-current supply, and by the pulse-generating circuit that is connected with constant-current supply of charging isolation resistance; Described pulse-generating circuit is connected with multiple branch roads of described repetition rate LTD module respectively by transmission line.
5. high power repetition rate fast pulse linear type transformer driving source according to claim 4, is characterized in that: described pulse-generating circuit comprises the second switch, the 3rd electric capacity and the build-out resistor that are connected to form loop successively.
6. high power repetition rate fast pulse linear type transformer driving source according to claim 5, is characterized in that: described second switch is hydrogen thyratron.
7. high power repetition rate fast pulse linear type transformer driving source according to claim 1, is characterized in that:
Described degaussing unit comprises two identical constant-current supplies of amplitude: positive supply constant-current supply and negative supply constant-current supply;
Described positive supply constant-current supply is connected with repetition rate LTD module with the first cable by the 4th electric capacity, the first current-limiting resistance successively, for one group of magnetic core degaussing to repetition rate LTD module;
Described negative supply constant-current supply is connected with repetition rate LTD module with the second cable by the 5th electric capacity, the second current-limiting resistance successively, for another group magnetic core degaussing to repetition rate LTD module;
The 3rd switch is connected with between described 4th electric capacity and the high-pressure side of the 5th electric capacity.
8. high power repetition rate fast pulse linear type transformer driving source according to claim 7, is characterized in that: also comprise the first inductance be connected between the first cable and repetition rate LTD module.
9. the high power repetition rate fast pulse linear type transformer driving source according to claim 7 or 8, is characterized in that: also comprise the second inductance be connected between the second cable and repetition rate LTD module.
10. high power repetition rate fast pulse linear type transformer driving source according to claim 7, is characterized in that: described 3rd switch is hydrogen thyratron.
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| CN201420466927.XU CN204119189U (en) | 2014-08-19 | 2014-08-19 | A kind of high power repetition rate fast pulse linear type transformer driving source |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184437A (en) * | 2014-08-19 | 2014-12-03 | 中国工程物理研究院核物理与化学研究所 | High-power repeated frequency quick pulse linear type transformer driving source and control method thereof |
| CN106953620A (en) * | 2017-03-23 | 2017-07-14 | 西北核技术研究所 | A kind of high repetitive frequency pulsed generation device of tandem |
| CN108809274A (en) * | 2018-07-12 | 2018-11-13 | 西南交通大学 | A kind of pulse power generating means |
-
2014
- 2014-08-19 CN CN201420466927.XU patent/CN204119189U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184437A (en) * | 2014-08-19 | 2014-12-03 | 中国工程物理研究院核物理与化学研究所 | High-power repeated frequency quick pulse linear type transformer driving source and control method thereof |
| CN106953620A (en) * | 2017-03-23 | 2017-07-14 | 西北核技术研究所 | A kind of high repetitive frequency pulsed generation device of tandem |
| CN108809274A (en) * | 2018-07-12 | 2018-11-13 | 西南交通大学 | A kind of pulse power generating means |
| CN108809274B (en) * | 2018-07-12 | 2024-04-12 | 西南交通大学 | Pulse power generating device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20180819 |