CN104811083A - Primary energy source middle module structure - Google Patents
Primary energy source middle module structure Download PDFInfo
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- CN104811083A CN104811083A CN201510267267.1A CN201510267267A CN104811083A CN 104811083 A CN104811083 A CN 104811083A CN 201510267267 A CN201510267267 A CN 201510267267A CN 104811083 A CN104811083 A CN 104811083A
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Abstract
The invention discloses a primary energy source middle module structure, which comprises a solid-state switch, a primary side capacitor, a switch trigger circuit and a bias magnet circuit, wherein the solid-state switch is connected with the primary side capacitor in series; the other pole of the primary side capacitor is connected to the input end of a pulse transformer; a control signal is output to the solid-state switch by the switch trigger circuit; the solid-state switch comprises a thyristor; a negative peak diode and a group of resistor and capacitor which are connected in series are connected to two ends of the thyristor in parallel. The primary energy source middle module structure has the advantages that the whole structure is compact, the space is conveniently utilized, the space of an accelerator is fully utilized by detaching a front end constant current power source and the rear end pulse transformer, a power cabinet is not necessarily arranged; the device is used for a pulse forming line charging experiment, an energy storage and switch triggering functions are provided, the primary energy source middle module structure is adapted to all kinds of capacitive loads through changing parameters of pulse waves and constant current sources, and the application is wide.
Description
Technical field
The present invention relates to pulse power primary energy intermediate module device, specifically, it is a kind of intermediate module device formed primarily of former limit electric capacity and solid-state switch, before this device, termination can to former edge-impulse capacitor charging to small power DC source, and rear termination pulse transformer just can charge to high voltage to capacitive load.Be mainly used in repetition pulsatron primary power systems.
Background technology
In pulse power system, the technology path producing high electric field pulse mainly contains two kinds: a kind of by the direct multiplication of voltage of Marx circuit, and another kind is by LTD circuit inductance superposition multiplication of voltage.LTD technology, owing to significantly reducing the insulating pressure on former limit, has modularization and versatility, presents certain advantage in some aspects.LTD single module produces the capacitive load of pulse charging voltage as certain in PFN General Requirements, then produces the even higher electric pulse of MV by the superposition of LTD module.PFN is equivalent to load to primary energy, and generally different according to PFN parameter to the primary energy of PFN charging, the primary energy argument structure of design is different, does not have a versatility.
Situation according to current primary energy is seen, the realization of the primary energy of most repetition pulsatron mainly contains three kinds of modes: one is intermediate energy storage mode, and lot of domestic and international accelerator primary energy such as SINUS and RADAN series adopts the mode of capacitance energy storage to realize repetition pulsing operation.Two is constant voltage charging methods of directly powering, and constant voltage charge adopts three phase network directly to power, and is charged after rectifies by current-limiting resistance electric capacity.But its structure is simple, it is convenient to control, but charge efficiency is not high.Three is constant current charge modes of directly powering, and adopts constant current charge, and the rate of voltage rise on electric capacity is even, and the charging interval is short, and loop does not have current-limiting resistance, and charge efficiency is high, and charging transient impacts little to electrical network.
Summary of the invention
The object of this invention is to provide a kind of former limit electric capacity and the solid-state switch integrating device that need DC charging, be applied to pulse power PFL charging pulse transformer multiple between limit and constant-current source, this integrating device connects DC source by i.e. intermediate module by front end, rear end connects pulse transformer, the rechargeable energy that just amplitude repetition number can be provided adjustable to capacitive load.
A kind of primary energy intermediate module structure, intermediate die block structured front end connects DC power supply, and rear end connects pulse transformer; Comprise solid-state switch, former limit electric capacity, switch triggering circuit and biasing circuit, described solid-state switch and former limit capacitances in series, the output of DC power supply is connected to for former limit capacitor charging between solid-state switch and former limit electric capacity, and another pole of former limit electric capacity is connected to the input of pulse transformer; Described biasing circuit is connected to the input of pulse transformer, for the reset of backend pulse magnetic core of transformer by an inductance; Control signal outputs to solid-state switch by switch triggering circuit, and described solid-state switch comprises a thyristor, and the resistance of a negative peak diode in parallel and one group of series connection at the two ends of thyristor and electric capacity.
In technique scheme, described control signal is input to thyristor.
In technique scheme, the resistance of a described road series connection is connected with the cathode output end of DC power supply with the resistance one end in electric capacity, and one end of electric capacity is connected to ground.
In technique scheme, described intermediate module structure comprises some roads, each road comprises independently switch triggering circuit, solid-state switch, a former limit electric capacity, the former limit electric capacity that the output of described DC power supply is connected to each road is for former limit capacitor charging, the former limit electric capacity on each road output be all connected to the input of pulse transformer, control signal is connected to the switch triggering circuit on each road.
In technique scheme, the triggering signal of described switch triggering circuit is connected to the trigger electrode of thyristor.
In technique scheme, described thyristor withstand voltage is no less than 5kV.
In this programme, intermediate module is outside, and front termination small-power 5kV DC source, because power is little, voltage is not high, can reduce design difficulty.(small-power, the DC source that voltage is not high is relatively good to be done)
Intermediate module is outside, and the transformer of the certain no-load voltage ratio of rear termination, for drawing high voltage.
In this programme, DC source is to former limit capacitor charging, and the resistance to pressure ratio DC source of former limit electric capacity is slightly high, when the through-current capability of former limit electric capacity is not enough, needs multi-channel parallel.
Solid-state switch adopts powerful SCR switch, and negative peak diode in parallel plays a part isolation voltage electric current; This point ten minutes necessity.
Be resistance and capacitor seriesing circuit in a road in parallel, play dynamic and static state all pressure effects, negative peak diode D, electric capacity C, resistance R, be combined into RCD switch protecting circuit simultaneously.
5KV DC source, to after the capacitor charging of former limit, is discharged by solid-state switch.Solid-state switch triggers and accepts to start electric discharge from the triggering signal of DC source, and now the elementary of transformer is equivalent to an inductance relative to discharge loop.By transformer boost, discharge energy is passed to transformer secondary output.
Under repetition operating state, the magnetic core of pulse transformer needs to reset, and this direct current provided by magnetic bias power supply is realized.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
One, fixing switch and former limit electric capacity being provided, becoming by changing arteries and veins the pulse current charge signal that various voltage can be provided.If the size of switch and former limit electric capacity is more or less the same, can by changing the major parameter of switch and electric capacity change intermediate module.
Two, compact overall structure, is convenient to utilize space, can make full use of accelerator space, need not configure power cabinet separately by fractionation front end constant-current supply and backend pulse transformer.
Three, this device tests use in order to PFL charging, provides energy storage and switch triggering function, as long as but capacitive load, by changing arteries and veins and become and the parameter of constant-current source, can adopt, have many uses.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is theory structure schematic diagram of the present invention;
Fig. 2 is object construction schematic diagram of the present invention;
Wherein: 1 is switch triggering circuit; 2 is that rear end arteries and veins becomes interface; 3 is solid-state switches; 4 is front end direct current source interfaces; 5 is former limit electric capacity; 6 is magnetic bias power supplys.
Embodiment
As shown in Fig. 1, major part of the present invention is the part in dotted line, and a path switching circuit is made up of switch triggering circuit, solid-state switch, former limit electric capacity, solid-state switch is thyristor, negative peak diode, series connection resistance capacitance compose in parallel; Solid-state switch and former limit capacitances in series, the output of DC power supply is connected between solid-state switch and former limit electric capacity and charges to it, and another pole of former limit electric capacity is connected to the input of pulse transformer; The control signal of control system is input to the thyristor in solid-state switch by switch triggering circuit.Biasing circuit is connected to the input of pulse transformer for the reset to magnetic core.
Core concept of the present invention utilizes thyristor to form switched charge circuit exactly, is become one by variable connector charging circuit, only needs its front end to be connected with rear end in practical process, just can realize the lifting to its voltage, reach the target voltage of needs.In order to realize this thought, mainly realized by following steps under above-mentioned principle.
One, the technical parameter of solid-state switch is first designed: the withstand voltage level of switch directly determines the no-load voltage ratio of arteries and veins change and the charging voltage of DC source, and needs to leave certain surplus in engineer applied; The through-flow situation of switch is considered when withstand voltage satisfying the demands, mainly comprise peak current, average current and effective current, multi-channel parallel process when Single switch through-current capability is not enough, when withstand voltage through-flow all suitable generally select high frequency, high speed device, now reverse leakage current is little, recovery time short can effectively switch high frequency spikes vibration under loss.。
Two, after switch parameter is determined, can determine that arteries and veins becomes and DC source charging voltage according to loading demand, now the parameter of former limit electric capacity just calculates according to load and no-load voltage ratio, and other electrical parameter and configuration are determined thereupon.
Three, after electrical parameter is determined, the position of rational deployment switch and electric capacity and accessory circuit, consider insulation and measure, communication, the problems such as heat radiation, can realize switch and electric capacity integrating device.
As shown in Figure 2, carry out facility according to such scheme, the thin-film capacitor of four 10uF/5kV forms former limit electric capacity, and the thyristor switch of 5kV forms main switch, and the circuits for triggering of switch are placed in the upper end of device, and rectifier bridge is used for the magnetic bias power supply of secondary transformer magnetic core.
By outside boundary constant-current source and pulse transformer, by most high charge to the constant-current supply of 5kV through the effect of former limit electric capacity and switch, can produce the repetition charging pulse of 30Hz through the transformer of 1:35, pulse voltage 150kV, the charging interval is less than 20us.
In the present invention, one end of external frame is front end direct current source interface, and other end rear end arteries and veins becomes interface, in framework, four solid-state switches are arranged in parallel, and arrange a former limit electric capacity above each solid-state switch, biasing circuit and switch triggering circuit are all arranged on the superiors of framework.By appropriate design mechanical structure, primary energy volume is reduced, adaptable, reliable.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (6)
1. a primary energy intermediate module structure, intermediate die block structured front end connects DC power supply, and rear end connects pulse transformer; It is characterized in that: comprise solid-state switch, former limit electric capacity, switch triggering circuit and biasing circuit, described solid-state switch and former limit capacitances in series, the output of DC power supply is connected to for former limit capacitor charging between solid-state switch and former limit electric capacity, and another pole of former limit electric capacity is connected to the input of pulse transformer; Described biasing circuit is connected to the input of pulse transformer, for the reset of backend pulse magnetic core of transformer by an inductance; Control signal outputs to solid-state switch by switch triggering circuit, and described solid-state switch comprises a thyristor, and the resistance of a negative peak diode in parallel and one group of series connection at the two ends of thyristor and electric capacity.
2. a kind of primary energy intermediate module structure according to claim 1, it is characterized in that the resistance of a described road series connection is connected with the cathode output end of DC power supply with the resistance one end in electric capacity, one end of electric capacity is connected to ground.
3. a kind of primary energy intermediate module structure according to claim 1, it is characterized in that described intermediate module structure comprises some roads, each road comprises independently switch triggering circuit, solid-state switch, a former limit electric capacity, the former limit electric capacity that the cathode output end of described DC power supply is connected to each road is for former limit capacitor charging, the former limit electric capacity on each road output be all connected to the input of pulse transformer, the control signal of control system is connected to the switch triggering circuit on each road.
4. a kind of primary energy intermediate module structure according to claim 3, is characterized in that the triggering signal of described switch triggering circuit is connected to the trigger electrode of thyristor.
5. a kind of primary energy intermediate module structure according to claim 4, is characterized in that described thyristor withstand voltage is no less than 5kV.
6. a kind of primary energy intermediate module structure according to claim 1, is characterized in that described control signal is input to thyristor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510267267.1A CN104811083A (en) | 2015-05-25 | 2015-05-25 | Primary energy source middle module structure |
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| CN201510267267.1A CN104811083A (en) | 2015-05-25 | 2015-05-25 | Primary energy source middle module structure |
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| CN104811083A true CN104811083A (en) | 2015-07-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110995210A (en) * | 2019-11-23 | 2020-04-10 | 重庆大学 | Multi-turn LTD pulse generator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647472A (en) * | 2013-12-19 | 2014-03-19 | 芜湖国睿兆伏电子有限公司 | Full-solid-state pulse modulator |
| CN203840305U (en) * | 2013-12-31 | 2014-09-17 | 芜湖国睿兆伏电子有限公司 | Solid-state switch of parallel discharge |
| CN104467772A (en) * | 2014-11-17 | 2015-03-25 | 西安交通大学 | Pulse transformer type trigger |
| CN204696958U (en) * | 2015-05-25 | 2015-10-07 | 中国工程物理研究院应用电子学研究所 | A kind of primary energy intermediate module structure |
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- 2015-05-25 CN CN201510267267.1A patent/CN104811083A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647472A (en) * | 2013-12-19 | 2014-03-19 | 芜湖国睿兆伏电子有限公司 | Full-solid-state pulse modulator |
| CN203840305U (en) * | 2013-12-31 | 2014-09-17 | 芜湖国睿兆伏电子有限公司 | Solid-state switch of parallel discharge |
| CN104467772A (en) * | 2014-11-17 | 2015-03-25 | 西安交通大学 | Pulse transformer type trigger |
| CN204696958U (en) * | 2015-05-25 | 2015-10-07 | 中国工程物理研究院应用电子学研究所 | A kind of primary energy intermediate module structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110995210A (en) * | 2019-11-23 | 2020-04-10 | 重庆大学 | Multi-turn LTD pulse generator |
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Application publication date: 20150729 |