CN103647472A - Full-solid-state pulse modulator - Google Patents
Full-solid-state pulse modulator Download PDFInfo
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- CN103647472A CN103647472A CN201310705111.8A CN201310705111A CN103647472A CN 103647472 A CN103647472 A CN 103647472A CN 201310705111 A CN201310705111 A CN 201310705111A CN 103647472 A CN103647472 A CN 103647472A
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Abstract
A full-solid-state modulator aims at solving the existing modulator disadvantages that the loss of modulator components is large, the pulse width cannot be adjusted, and the like. The full-solid-state modulator comprises a charging power supply, an inductive voltage superimposer a high transformation ratio pulse transformer, a control processor and an auxiliary power supply; the charging power supply, the inductive voltage superimposer and the high transformation ratio pulse transformer are sequentially connected; the inductive voltage superimpose is formed by a modulating module; the modulating module comprises four IGBT units and a pulse transformer which is provided with a single-turn primary and a single-turn secondary; the four IGBT units drive the pulse transformer in a parallel mode; the secondary pulse voltage of the pulse transformer is connected to a primary circuit of the high transformation ratio pulse transformer. The full-solid-state modulator has the advantages of being efficient, high in reliability, small in size, light in weight, low in operating cost and adjustable in pulse width due to the fact that the IGBT units replace traditional electronic vacuum pipes.
Description
Technical field
The invention belongs to a kind of pulse modulator, be specifically related to a kind of complete solid state pulse modulator.
Background technology
Pulse Power Techniques are widely used at numerous areas such as accelerator, radar transmitter, safety inspection, industrial nondestructive inspections.As the pulse modulator of its core, the past electronic vacuum pipes that adopt, as the line style pulse modulator of switching device, also need to adopt high voltage pulse transformer to complete to microwave tube and power conventionally.
Although the modulator circuit of current this system is simple, cost is low, there is the shortcomings such as volume weight is large, poor reliability, operating cost is high, device loss is large, drive circuit is complicated, pulse duration is non-adjustable.These problems have not only affected the operation and maintenance of modulator, have also had a strong impact on the vitality of conventional modulated device technology, now can not finely meet the changeable growth requirement in market.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of complete solid state pulse modulator, to reach system requirements efficient, highly reliable, that volume is little, lightweight, operating cost is low, can also meet the use occasion that some needs pulse duration can flexible.
Technical scheme of the present invention is: a kind of complete solid state pulse modulator, comprise that charge power supply, induced voltage superimposer, hypermutation are than pulse transformer, control processor and accessory power supply, charge power supply provides input voltage for induced voltage superimposer, the output of induced voltage superimposer is connected to hypermutation than the primary return of pulse transformer, and the output signal of control processor accesses respectively charge power supply, induced voltage superimposer and hypermutation and compares pulse transformer; Accessory power supply is connected to induced voltage superimposer and hypermutation compares pulse transformer; It is characterized in that: described induced voltage superimposer is comprised of modulation module, described modulation module comprises 4 IGBT(Insulated Gate Bipolar Transistor; Insulated gate bipolar transistor) unit and one have the elementary and secondary pulse transformer of single turn of single turn, pulse transformer described in 4 IGBT unit parallel drives, the secondary voltage pulse output of described pulse transformer accesses described hypermutation than the primary return of pulse transformer.
Further improvement as this programme: described induced voltage superimposer comprises 18 modulation modules, the secondary series connection of pulse transformer of 18 modulation modules, the pulse voltage of output accesses described hypermutation than the primary return of pulse transformer.
Further improvement as this programme: described pulse modulator also comprises klystron, described klystron is connected with accessory power supply than pulse transformer with hypermutation respectively.
Further improvement as this programme: described accessory power supply comprises filament supply and magnetic bias power supply, and described filament supply is connected to klystron, described filament supply uses magnetic saturation transformer-supplied.
Further improvement as this programme: described magnetic bias power supply is connected to induced voltage superimposer and hypermutation than pulse transformer, and the pulse choking coil of described magnetic bias power supply is placed on hypermutation than in pulse transformer.
Further improvement as this programme: described pulse modulator also comprises titanium pump power supply and magnetic field power supply, under low-pressure state, titanium pump power supply provides vacuum high-pressure for klystron, and magnetic field power supply provides required electric current for focusing coil for klystron.
Further improvement as this programme: described pulse modulator also comprises compensating module, described compensating module comprises two modulation modules.
The present invention has following good effect: 1) the present invention adopts IGBT to replace traditional electronic vacuum pipe, have efficient, highly reliable, volume is little, lightweight, operating cost is low and the flexible adjustable feature of pulse duration; 2) problem falls in the top that compensating module can solve waveform; 3) adopt the mode of induced voltage stack, when having a superpositing unit to damage, only make output voltage slightly decline, not only can not increase the power output of other assembly, can make on the contrary pulse current slightly reduce, can not cause chain damage reaction.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention;
Wherein, 1 charge power supply, 2 induced voltage superimposers, 3 hypermutations are than pulse transformer, 4 klystrons, 5 accessory power supplys, 6 control processors, 7 titanium pump power supplys, 8 magnetic field power supplies.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is as the effect of the mutual alignment between the shape of each related member, structure, each several part and annexation, each several part and operation principle, manufacturing process and operation using method etc., be described in further detail, to help those skilled in the art to have more complete, accurate and deep understanding to inventive concept of the present invention, technical scheme.
A complete solid state pulse modulator, comprises that distribution system, charge power supply, induced voltage superimposer, hypermutation are than pulse transformer, accessory power supply, control processor, titanium pump power supply and magnetic field power supply; Fundamental diagram is shown in Fig. 1.
Distribution system difference distribution is to control processor, accessory power supply, titanium pump power supply and magnetic field power supply.Under low-pressure state, titanium pump power supply provides vacuum high-pressure for klystron system; Magnetic field power supply provides focusing coil required electric current for it.Under the control of control processor, distribution section is sent power supply to charge power supply, under the effect of induced voltage superimposer, becomes burst pulse to pass to klystron system energy modulation.
Distribution system is mainly comprised of filter, circuit breaker and other auxiliary control circuit, and for the each several part of complete solid state pulse modulator provides distribution, this part adopts three-phase 380V, 50Hz/60Hz power supply, and power network fluctuation requires in ± 10%.
Charge power supply is comprised of control protection electric circuit, full-bridge inverting resonant circuit, high frequency transformer and rectification circuit, adopts series resonance constant current charge working method, for the storage capacitor of induced voltage superimposer provides stable high direct voltage accurately.Mains switch Frequency Design is 20kHz left and right (resonance frequency is 40KHz).
Induced voltage superimposer is comprised of 18 modulating unit modules, each modulating unit module drives one to have the elementary and secondary pulse transformer of single turn of single turn by 4 identical IGBT modules are in parallel respectively jointly, 18 secondary overlapped in series successively of pulse transformer are exported medium high-voltage pulse, and access hypermutation is than the primary return of pulse transformer.
Hypermutation is the power coupler part between induced voltage superimposer and klystron than pulse transformer, and it is except transmission pulse power, also for klystron filament supply provides current path and realize the isolation of high-voltage pulse.
Control processor is comprised of control circuit, protective circuit and status display circuit etc., intends adopting the control section that S7 series 200 type PLC control processors are whole modulator.
Accessory power supply is comprised of klystron filament supply, magnetic bias power supply etc., and klystron filament supply uses magnetic saturation transformer-supplied, to guarantee the stability requirement of filament voltage output, when power network fluctuation ± 10% is interior, can ensure that output voltage stabilization degree is in ± 1%; Magnetic bias power supply is simultaneously for each pulse transformer of induced voltage superimposer and hypermutation provide demagnetizing current than pulse transformer, and its pulse choking coil is placed on hypermutation than in pulse transformer.
Meanwhile, hypermutation completes the sampling task of pulse voltage, pulse current and the Quarantine Tasks of magnetic bias power supply under the cooperation of additional device (capacitor voltage divider, current transformer and pulse choking coil) than pulse transformer.Hypermutation than pulse transformer include the measuring element of pulse voltage, electric current, as voltage divider, current transformer etc.
As Fig. 1: induced voltage superimposer and hypermutation, than the boost mixed topology structure of combination of pulse transformer, can guarantee that the operating voltage of induced voltage superimposer is lower, and the high-pressure section of its output can be immersed in fuel tank the inside, easily solves High-Voltage Insulation problem.Hypermutation is coupled by induced voltage superimposer than the modulating pulse of the primary return input of pulse transformer and stack obtains.
Induced voltage superimposer elementary on electronegative potential, the primary return of each induced voltage superimposer is a basic solid-state firm pipe pulse modulator, the all firm pipe pulse modulator that each is elementary and the circuits for triggering of modulation switch are all identical, operating voltage and operating current can be controlled at reduced levels, therefore do not need to consider stronger insulating requirements.
Elementary all circuit can Uniting, is conducive to realize standardization, modularization, produce, debugging easily, only need, to element circuit optimal design repeatedly, easily realize high reliability long life work.It is more elementary than pulse transformer that the output pulse of induced voltage superimposer is added to hypermutation, and the high-voltage pulse after boosting is delivered to klystron two ends.Owing to adopting the mode of induction stack, when having a superpositing unit to damage, only make output voltage slightly decline, not only can not increase the power output of other assembly, can make on the contrary pulse current slightly reduce, can not cause chain damage reaction.
According to high-power output requirement, the fan-out capability of single high-power IGBT module and hypermutation are than pulse transformer adaptive capacity, the voltage pulse output of induced voltage superimposer is decided to be to 32.5kV, hypermutation is just decided to be 1:10 than the no-load voltage ratio of pulse transformer, so be 325kV meeting total voltage pulse output, pulse current is under 800A, its hypermutation should be 32.5kV than the input pulse voltage of pulse transformer, input pulse electric current should be 9600A, consider that current rated voltage is 3.3kV, specified average current is the ripe high-power IGBT module of 1500A, can trouble free service in 2kV/3000A situation.This induced voltage superimposer forms with 18 identical modulating units, each modulating unit is by the low leakage inductance pulse transformer of single turn of being made by amorphous magnetic core of 4 IGBT module drive, the single turn of 18 pulse transformers is exported overlapped in series, can meet the input requirements of subordinate's pulse transformer.In addition, consider the top degradation problem of waveform, reserved two modules are module by way of compensation.Last total laminating module is 20.
The main feature of the complete solid state pulse modulator of a kind of novel induction superposing type in the present invention is system requirements efficient, highly reliable, that volume is little, lightweight, the life-span is long, operating cost is low, can also meet the use occasion that some needs pulse duration can flexible.High tension apparatus is few, reliability is high, maintenance cost is low, need the fault of shutdown maintenance few.These characteristics is more suitable for and requires high-average power, high-peak power, miniaturization, high reliability, system parameter variations occasion frequently.
By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (7)
1. a complete solid state pulse modulator, comprise that charge power supply, induced voltage superimposer, hypermutation are than pulse transformer, control processor and accessory power supply, charge power supply provides input voltage for induced voltage superimposer, the output of induced voltage superimposer is connected to hypermutation than the primary return of pulse transformer, and the output signal of control processor accesses respectively charge power supply, induced voltage superimposer and hypermutation and compares pulse transformer; Accessory power supply is connected to induced voltage superimposer and hypermutation compares pulse transformer; It is characterized in that: described induced voltage superimposer is comprised of modulation module, described modulation module comprises that 4 IGBT unit and one have the elementary and secondary pulse transformer of single turn of single turn, pulse transformer described in 4 IGBT unit parallel drives, the secondary voltage pulse output of described pulse transformer accesses described hypermutation than the primary return of pulse transformer.
2. pulse modulator according to claim 1, it is characterized in that: described induced voltage superimposer comprises 18 modulation modules, the secondary series connection of pulse transformer of 18 modulation modules, the pulse voltage of output accesses described hypermutation than the primary return of pulse transformer.
3. pulse modulator according to claim 1, is characterized in that: described pulse modulator also comprises klystron, and described klystron is connected with accessory power supply than pulse transformer with hypermutation respectively.
4. according to the pulse modulator described in claim 1-3 any one, it is characterized in that: described accessory power supply comprises filament supply and magnetic bias power supply, and described filament supply is connected to klystron, described filament supply uses magnetic saturation transformer-supplied.
5. pulse modulator according to claim 4, is characterized in that: described magnetic bias power supply is connected to induced voltage superimposer and hypermutation than pulse transformer, and the pulse choking coil of described magnetic bias power supply is placed on hypermutation than in pulse transformer.
6. pulse modulator according to claim 1, it is characterized in that: described pulse modulator also comprises titanium pump power supply and magnetic field power supply, under low-pressure state, titanium pump power supply provides vacuum high-pressure for klystron, and magnetic field power supply provides required electric current for focusing coil for klystron.
7. according to the pulse modulator described in claim 1-3 or 5-6 any one, it is characterized in that: described pulse modulator also comprises compensating module, described compensating module comprises two modulation modules.
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| CN201310705111.8A CN103647472A (en) | 2013-12-19 | 2013-12-19 | Full-solid-state pulse modulator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104735896A (en) * | 2015-03-30 | 2015-06-24 | 同方威视技术股份有限公司 | Power source insulating equipment and electronic curtain accelerator |
| CN104811083A (en) * | 2015-05-25 | 2015-07-29 | 中国工程物理研究院应用电子学研究所 | Primary energy source middle module structure |
| CN105334371A (en) * | 2015-11-20 | 2016-02-17 | 西北核技术研究所 | Measuring system for secondary current of induced voltage adder, marking device and method thereof |
| CN105388352A (en) * | 2015-11-20 | 2016-03-09 | 西北核技术研究所 | B-dot probe based on PCB type magnetic induction coil, and current spatial distribution measuring system |
| CN105486908A (en) * | 2015-11-20 | 2016-04-13 | 西北核技术研究所 | B-dot probe blocking electrons of magnetically insulated sheath and current space distribution measuring system |
| CN116317670A (en) * | 2023-04-06 | 2023-06-23 | 中国舰船研究设计中心 | Flexible high-voltage power supply system oriented to high-power microwave source |
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| US5448580A (en) * | 1994-07-05 | 1995-09-05 | The United States Of America As Represented By The United States Department Of Energy | Air and water cooled modulator |
| CN203840235U (en) * | 2013-12-19 | 2014-09-17 | 芜湖国睿兆伏电子有限公司 | Full-solid-state pulse modulator |
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| US5448580A (en) * | 1994-07-05 | 1995-09-05 | The United States Of America As Represented By The United States Department Of Energy | Air and water cooled modulator |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104735896A (en) * | 2015-03-30 | 2015-06-24 | 同方威视技术股份有限公司 | Power source insulating equipment and electronic curtain accelerator |
| CN104735896B (en) * | 2015-03-30 | 2018-07-31 | 同方威视技术股份有限公司 | Mains isolation equipment and electrocurtain accelerator |
| CN104811083A (en) * | 2015-05-25 | 2015-07-29 | 中国工程物理研究院应用电子学研究所 | Primary energy source middle module structure |
| CN105334371A (en) * | 2015-11-20 | 2016-02-17 | 西北核技术研究所 | Measuring system for secondary current of induced voltage adder, marking device and method thereof |
| CN105388352A (en) * | 2015-11-20 | 2016-03-09 | 西北核技术研究所 | B-dot probe based on PCB type magnetic induction coil, and current spatial distribution measuring system |
| CN105486908A (en) * | 2015-11-20 | 2016-04-13 | 西北核技术研究所 | B-dot probe blocking electrons of magnetically insulated sheath and current space distribution measuring system |
| CN105334371B (en) * | 2015-11-20 | 2018-01-19 | 西北核技术研究所 | Induced voltage superimposer secondary current measuring system and its caliberating device and method |
| CN105388352B (en) * | 2015-11-20 | 2018-01-19 | 西北核技术研究所 | B dot probes and electric current spatial distribution measuring system based on PCB formula magnetic induction coils |
| CN105486908B (en) * | 2015-11-20 | 2018-02-02 | 西北核技术研究所 | Stop the B dot probes and electric current spatial distribution measuring system of magnetic insulation sheaths electronics |
| CN116317670A (en) * | 2023-04-06 | 2023-06-23 | 中国舰船研究设计中心 | Flexible high-voltage power supply system oriented to high-power microwave source |
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