CN114710141B - Multiple frequency high voltage pulse generator with multiple output forms - Google Patents
Multiple frequency high voltage pulse generator with multiple output forms Download PDFInfo
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- CN114710141B CN114710141B CN202210631714.7A CN202210631714A CN114710141B CN 114710141 B CN114710141 B CN 114710141B CN 202210631714 A CN202210631714 A CN 202210631714A CN 114710141 B CN114710141 B CN 114710141B
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
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Abstract
The invention discloses an integrated rotary switch and a repetition frequency high-voltage pulse generator with a multi-output form, wherein the integrated rotary switch comprises: the integrated switch can realize simultaneous conduction of a plurality of switch electrode pairs; by combining the integrated rotary switch and a plurality of groups of multi-stage Marx structures, the repetition frequency high-voltage pulse generator with multiple output forms can realize continuous adjustment of output voltage amplitude and repetition frequency high-voltage pulse output of various waveform combinations by adjusting the number of switch trigger electrode groups, the number of trigger electrodes in each group of trigger electrodes, the series number and the group number of the Marx structures and the capacitance value of a capacitor aiming at different application scenes, has high reliability and greatly expands the application range of the high-voltage pulse generator.
Description
Technical Field
The invention belongs to the field of pulse generators, and particularly relates to an integrated rotary switch and a repetition frequency high-voltage pulse generator with multiple output forms.
Background
The high-voltage pulse generator has wide application prospect in the fields of military, industry and the like, the traditional high-voltage pulse generator generally adopts a Marx generator technical route, the Marx generator is adopted to charge a pulse forming capacitor, and the pulse forming capacitor discharges to a load after the peak value is reached.
The existing Marx generator adopts a self-breakdown gas switch as a transmitting switch of high-voltage electric pulse, and the adjustment of the output voltage amplitude is realized by adjusting the air pressure of the switch, so that the output voltage adjustment range of the adjustment mode is generally very small, the output stability of a pulse source can be influenced, and the Marx generator can not meet the application requirements of certain specific fields; in addition, when the Marx generator works at a repetition frequency, the existing Marx generator can only output a waveform with a fixed form, which also limits the application of the Marx generator in the military and industrial fields.
Disclosure of Invention
In view of the above, the present invention provides an integrated rotary switch and a multiple-output repetition frequency high voltage pulse generator, wherein the integrated rotary switch can achieve simultaneous conduction of a plurality of switch electrode pairs; the repetition frequency high-voltage pulse generator with multiple output forms adopts the combination of the integrated rotary switch and a plurality of groups of multi-stage Marx structures, so that the wide-range continuous adjustment of output high voltage and the output of multiple waveform forms are realized.
In order to achieve the purpose, the invention adopts the following technical scheme: an integrated rotary switch, comprising: the device comprises an insulating rotary support rod, a trigger electrode, a radial bearing, a rotary metal plate, an electromagnet and a switch electrode pair;
the trigger electrodes are uniformly distributed along the axial direction of the insulating rotary supporting rod and are arranged on the insulating rotary supporting rod;
the radial bearing has elasticity and is supported at two ends of the insulating rotary supporting rod;
the rotating metal plate is arranged at one end part of the insulating rotating support rod;
the electromagnet is positioned on the outer side of the rotating metal plate;
the switch electrode pairs correspond to the trigger electrode groups one by one, each switch electrode pair comprises two electrodes, and a space is reserved between the two electrodes; the multiple pairs of switch electrode pairs are positioned on one side of the insulating rotating support rod, and the mounting positions of the switch electrode pairs meet the requirement that when the trigger electrodes rotate along with the insulating rotating support rod, each group of trigger electrodes can penetrate through the middle of two electrodes of the corresponding switch electrode pair.
Preferably, each group of trigger electrodes in the multiple groups of trigger electrodes all include one or more same trigger electrodes, and if include a plurality of trigger electrodes, then a plurality of trigger electrodes in each group all install the same axial position at insulating rotation support pole, and adjacent trigger electrodes use insulating rotation support pole to be the rotation axis and are the contained angle and scatter in every group.
Preferably, the included angle between any two adjacent trigger electrodes of the plurality of trigger electrodes is the same.
Preferably, the included angle between any two adjacent trigger electrodes of the plurality of trigger electrodes is different.
Preferably, when the trigger electrode is located between two electrodes of the switch electrode pair, the distance between the two surfaces of the trigger electrode and the two electrodes is less than 0.1 mm.
Preferably, the integrated rotary switch is used in a gas-insulated environment and a transformer oil-insulated environment.
The pulse generator comprises the integrated rotary switch, an insulating fixed disc, an energy storage assembly, an output support rod, a bus electrode plate and an output resistor;
the two insulation fixing disks are respectively positioned at the bottom and the top of the pulse generator;
the energy storage assemblies are arranged between the upper insulating fixing disc and the lower insulating fixing disc, and are uniformly distributed along the same circular ring circumference of the insulating fixing discs;
the number of the output support rods is multiple, and one end of each output support rod penetrates through the insulating fixing disc at the top to be connected with one energy storage assembly;
the bus electrode plates are multiple, one end of each bus electrode plate is connected with one output supporting rod, and the other end of each bus electrode plate is connected to the output resistor;
the integrated rotary switch is located on one side or the middle of the energy storage assembly, the switch electrode pairs of the integrated rotary switch are connected to the multiple groups of energy storage assemblies, the insulating rotary supporting rods are installed between the two insulating fixing disks and rotate around the centers of the insulating fixing disks, and when the positions of each group of trigger electrodes on the insulating rotary supporting rods in the multiple groups of trigger electrodes need to guarantee that the insulating rotary supporting rods rotate, each group of trigger electrodes can pass through gaps between the two electrodes of the corresponding switch electrode pairs.
Preferably, the energy storage assembly comprises: the device comprises a capacitor bank, a grounding resistor, a charging resistor and an insulating support column;
the capacitor bank comprises a plurality of capacitors which are sequentially stacked from bottom to top, and the capacitors are connected through insulating support columns;
the charging resistors are connected in series and then grounded; the charging resistors correspond to the capacitors one by one and are connected to the anodes of the corresponding capacitors through connecting copper sheets;
the grounding resistors are connected in series and then grounded, correspond to the capacitors one by one and are connected to the cathodes of the corresponding capacitors through connecting copper sheets;
two electrodes in the switch electrode pair are respectively connected to an upper adjacent capacitor and a lower adjacent capacitor through connecting copper sheets, one electrode is connected to the negative electrode of one capacitor, the other electrode is connected to the positive electrode of the other capacitor, and the negative electrode of the capacitor and the positive electrode of the capacitor respectively mean the negative electrode and the positive electrode which can enable the two adjacent capacitors to be connected in series after the two adjacent capacitors are conducted through the integrated rotary switch.
The invention has the beneficial effects that: the invention discloses an integrated rotary switch and a repetition frequency high-voltage pulse generator with a multi-output form, wherein the integrated rotary switch realizes the simultaneous conduction of a plurality of switch electrode pairs through the synchronous rotary motion of a plurality of groups of trigger electrodes; the invention relates to a multi-output form repetition frequency high-voltage pulse generator which adopts the combination of an integrated rotary switch and a plurality of groups of multi-stage Marx structures, can realize the continuous adjustment of output voltage amplitude and the repetition frequency high-voltage pulse output of various waveform combinations by adjusting the number of switch trigger electrode groups, the number of trigger electrodes in each group of trigger electrodes, the series number and the group number of the Marx structures and the capacity value of a capacitor, has high reliability, can realize the required technical indexes by changing the capacity value of the capacitor and the group number series of the Marx structures aiming at different application scenes, and greatly expands the application range of the high-voltage pulse generator.
Drawings
FIG. 1 is a schematic structural diagram of an integrated rotary switch according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a structure of a repetition frequency high voltage pulse generator of a one-shot electrode according to an embodiment of the present invention;
FIG. 3 is a schematic view of a combination structure of a one-shot electrode and an insulating rotary supporting rod according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a set of trigger electrodes and an insulating rotary supporting rod with three trigger electrodes in each set according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an axial distribution structure of three trigger electrodes around an insulating rotating support rod according to an embodiment of the present invention;
FIG. 6 is a graph of the voltage of the repetition frequency pulses with the same waveform and equal time interval output by the repetition frequency high voltage pulse generator of the present invention;
FIG. 7 is a graph of the voltage of the repetition frequency pulses with different waveforms and equal time intervals output by the repetition frequency high voltage pulse generator according to the present invention;
FIG. 8 is a graph of the voltage of the repetition frequency pulses with different waveforms and different time intervals output by the repetition frequency high voltage pulse generator according to the present invention;
FIG. 9 is a graph of the voltage of the repetition frequency pulses of different waveforms and different time intervals output by the repetition frequency high voltage pulse generator of the present invention;
in the figure: 1. the novel high-voltage power supply comprises an insulating rotary supporting rod 2, a trigger electrode 3, a radial bearing 4, a rotary metal plate 5, an electromagnet 6, an electrode 101, a top insulating fixing disk 102, a capacitor 103, a charging resistor 104, a grounding resistor 105, a connecting copper sheet 106, an insulating supporting column 107, an output supporting rod 108, a bus electrode sheet 109, an output resistor 110 and a bottom insulating fixing disk.
Detailed Description
It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention and are to be construed as being without limitation to such specifically recited embodiments and examples. Those skilled in the art can make various other specific modifications and combinations based on the teachings of the present invention without departing from the spirit of the present invention, and such modifications and combinations are within the scope of the present invention as to increase the number of trigger electrode sets and the number of each set, or to increase or decrease the number of capacitor sets.
The invention is described in detail below with reference to the figures and the specific embodiments.
As an example, an integrated rotary switch as shown in fig. 1 includes: the device comprises an insulating rotary support rod 1, a trigger electrode 2, a radial bearing 3, a rotary metal plate 4, an electromagnet 5 and a switch electrode pair;
in this embodiment, there are 3 sets of trigger electrodes, each set of trigger electrodes includes only one trigger electrode 2, the number of sets of trigger electrodes 2 in practical application can be adjusted according to the requirement of practical application, and also, each set includes several trigger electrodes 2, which can also be set according to the output time interval of the repetition frequency pulse voltage, for example, in the case that one set of trigger electrodes 2 is only provided as shown in fig. 3 and in the case that 3 trigger electrodes 2 are provided as shown in fig. 4 and 5, when a plurality of trigger electrodes 2 are provided, the connection relationship between the trigger electrodes 2 and the insulating rotation support rod 1 is as shown in fig. 4 and 5, 3 trigger electrodes 2 are all installed on the same axial position of the insulating rotation support rod 1, and the insulating rotation support rod 1 is used as a rotation axis, and the adjacent trigger electrodes 2 have included angles of α, β and (360 ° - α - β), the values of alpha and beta can be adjusted according to the interval time of the actual high-voltage pulse output.
The radial bearings 3 have elasticity, are supported at two ends of the insulating rotary supporting rod 1 and are used for supporting the insulating rotary supporting rod 1 to rotate;
the rotary metal plate 4 is arranged at the end part of one end of the insulated rotary supporting rod 1, and an electromagnet 5 is arranged outside the rotary metal plate; after the power is switched on, the electromagnet 5 drives the rotating metal plate 4 to rotate, and further drives the insulating rotating support rod 1 to rotate, so that the rotation of the trigger electrode 2 is realized.
The number of pairs of the switch electrode pairs is the same as the number of the trigger electrode groups, 3 groups are provided in this embodiment, each pair of switch electrode pairs comprises two electrodes 6, a certain distance is provided between the two electrodes 6, and the distance is required to ensure that when the trigger electrode 2 is located between the two electrodes 6 of the switch electrode pair, the distance between the two surfaces of the trigger electrode 2 and the two electrodes 6 of the switch electrode pair is less than 0.1mm, so as to realize reliable conduction of the switch.
As shown in fig. 1, the pair of switching electrodes is located on one side of the insulating rotary support rod 1, and in actual use, the pair of switching electrodes is installed on a device to be electrically conducted. The distance between the switch electrode pair and the insulating rotary supporting rod 1 should be less than the length of the trigger electrode 2, and the installation position of the switch electrode pair should correspond to the installation position of the trigger electrode 2 corresponding to the switch electrode pair, so that the trigger electrode 2 can pass through the middle of the two electrodes 6 of the switch electrode pair in the rotating process to conduct the two electrodes 6.
In the using process, the integrated rotary switch and equipment needing electric conduction can be arranged in the box body together, and reasonable structural layout is carried out, so that the application of the integrated rotary switch on various occasions can be realized. The integrated rotary switch of the invention can be used in various insulating environments such as gas or transformer oil.
The working process of the integrated rotary switch is as follows: when the electromagnet 5 is not electrified, the elastic radial bearing 3 enables the trigger electrode 2 to be far away from the switch electrode pair; when the electromagnet 5 is powered on, the electromagnet 5 attracts the rotating metal plate 4 on the insulating rotating support rod 1 to rotate, so as to drive the insulating rotating support rod 1 and the trigger electrode 2 mounted on the insulating rotating support rod to rotate rapidly, and when the trigger electrode 2 rotates to the center position of the two electrodes 6 of the switch electrode pair, the switches are switched on simultaneously.
As an example, the pulse generator with multiple output forms, namely, a high-voltage pulse generator with multiple output forms, as shown in fig. 2, comprises the integrated rotary switch and the insulating fixing disc, the energy storage assembly, the output support rod 107, the bus electrode sheet 108 and the output resistor 109;
the number of the insulating fixed disks is two, and the insulating fixed disks comprise a bottom insulating fixed disk 110 positioned at the bottom of the pulse generator and a top insulating fixed disk 101 positioned at the top of the pulse generator, and the insulating fixed disks are used for supporting other parts of the whole high-voltage pulse generator;
in this embodiment, there are 3 groups of energy storage components, and energy storage component quantity can be adjusted according to actual demand in the in-service use. The energy storage assembly is arranged between the upper insulating fixing disk and the lower insulating fixing disk and is uniformly distributed along the circumferential direction of a circular ring with the same diameter of the insulating fixing disk, and the integrated rotary switch is surrounded in the middle. In the condition that only one group of energy storage assemblies are arranged, the integrated switch is positioned on one side of the energy storage assemblies and used for conducting the energy storage assemblies.
Wherein the energy storage component includes: a capacitor group consisting of a plurality of capacitors 102, a plurality of charging resistors 103, a grounding resistor 104 and an insulating support column 106, which are sequentially connected in a stacking manner from bottom to top; the capacitors 102 are connected through insulating support columns 106; the positive electrode of each capacitor 102 is connected with a charging resistor 103 through a connecting copper sheet 105, and the negative electrode of each capacitor is connected with a grounding resistor 104 through the connecting copper sheet 105; all the charging resistors 103 are grounded after being connected in series, and all the grounding resistors 104 are grounded after being connected in series.
As shown in fig. 2, the integrated rotary switch is disposed among the plurality of energy storage assemblies, the switch electrode pairs of the integrated rotary switch are also provided with 3 groups according to the number of capacitor groups, each group is provided with switch electrode pairs with the same number as that of each group of capacitors 102, two electrodes 6 of each switch electrode pair are respectively connected with the cathode of the capacitor 102 and the anode of the adjacent capacitor 102 through connecting copper sheets 105, so that when the trigger electrode 2 of the integrated rotary switch is located between the electrode pairs formed by the two electrodes 6, the two adjacent capacitors 102 can be discharged in series; as can be seen from the figure, 3 groups of switching electrode pairs are distributed circumferentially around the insulating rotary supporting rod 1; an insulation rotary support rod 1 of the integrated switch is arranged between the upper rotary insulation fixed disk and the lower rotary insulation fixed disk and can rotate around the centers of the upper insulation fixed disk and the lower insulation fixed disk; the insulating rotating support rod 1 is provided with a plurality of groups of trigger electrodes 2 along the axial direction, and when the installation position of each group of trigger electrodes 2 on the insulating rotating support rod 1 ensures that the insulating rotating support rod 1 rotates, each group of trigger electrodes 2 can be driven to pass through the middle of two electrodes 6 of the corresponding switch electrode pair.
The pulse generator also comprises 3 output support rods 107, one end of each output support rod 107 is connected to the topmost capacitor 102 in each group of capacitor banks, and the other end of each output support rod 107 is connected to one end of a bus electrode slice 108; the other end of the bus electrode tab 108 is connected to the output resistor 109.
Fig. 6 to 9 are graphs showing different types of pulse voltage outputs of the repetition frequency high voltage pulse generator of the present invention, wherein fig. 6 and 7 are graphs showing equal time intervals of pulse voltages, and the time intervals between pulses are t1, and the pulse voltage outputs of different waveforms in fig. 7 can be realized by adjusting the capacitance of the capacitor 102; fig. 8 and 9 show the variable time interval output of the pulse voltage, the different time intervals are t1 and t2, t1 and t2 can be adjusted by adjusting the number of trigger electrodes 2 in each group and the included angle between them, and the pulse voltage output of different waveforms in fig. 9 can be realized by adjusting the capacitance value of the capacitor 102.
In summary, the integrated rotary switch of the present invention can achieve simultaneous conduction of a plurality of switch electrode pairs, and the multiple output form repetition frequency high voltage pulse generator adopts the combination of the integrated rotary switch and a plurality of multi-stage Marx structures, and can achieve continuous adjustment of output voltage amplitude and multiple waveform combined repetition frequency high voltage pulse output by adjusting the number of switch trigger electrode groups, the number of trigger electrodes in each group of trigger electrodes, the number of stages of the Marx structures, the number of groups, and the capacitance of capacitors.
Claims (7)
1. The pulse generator is characterized by comprising an integrated rotary switch, an insulating fixed disc, an energy storage assembly, an output support rod, a bus electrode plate and an output resistor; the integrated rotary switch includes: the device comprises an insulating rotary support rod, a trigger electrode, a radial bearing, a rotary metal plate, an electromagnet and a switch electrode pair; the plurality of groups of trigger electrodes are uniformly distributed along the axial direction of the insulating rotary supporting rod and are arranged on the insulating rotary supporting rod; the radial bearings are elastic and are supported at two ends of the insulating rotary supporting rod; the rotating metal plate is arranged at one end part of the insulating rotating support rod; the electromagnet is positioned on the outer side of the rotating metal plate; the switch electrode pairs correspond to the trigger electrode groups one by one, each switch electrode pair comprises two electrodes, and a space is reserved between the two electrodes; the plurality of pairs of switch electrode pairs are positioned on one side of the insulating rotary supporting rod, and the mounting positions of the switch electrode pairs meet the requirement that when the trigger electrodes rotate along with the insulating rotary supporting rod, each group of trigger electrodes can penetrate through the middle of two electrodes of the corresponding switch electrode pair;
the two insulation fixing disks are respectively positioned at the bottom and the top of the pulse generator;
the energy storage assemblies are arranged between the upper insulating fixing disc and the lower insulating fixing disc, and are uniformly distributed along the circumferential direction of the same ring of the insulating fixing disc;
the output support rods are multiple, and one end of each output support rod penetrates through the insulating fixing disc at the top to be connected with an energy storage assembly;
the bus electrode plates are multiple, one end of each bus electrode plate is connected with one output supporting rod, and the other end of each bus electrode plate is connected to the output resistor;
the integrated rotary switch is located on one side or the middle of the energy storage assembly, the switch electrode pairs of the integrated rotary switch are connected to the multiple groups of energy storage assemblies, the insulating rotary supporting rods are installed between the two insulating fixing disks and rotate around the centers of the insulating fixing disks, and when the positions of each group of trigger electrodes on the insulating rotary supporting rods in the multiple groups of trigger electrodes need to guarantee that the insulating rotary supporting rods rotate, each group of trigger electrodes can pass through gaps between the two electrodes of the corresponding switch electrode pairs.
2. The multiple-output high-voltage pulse generator according to claim 1, wherein the energy storage component comprises: the device comprises a capacitor bank, a grounding resistor, a charging resistor and an insulating support column;
the capacitor bank comprises a plurality of capacitors which are sequentially stacked from bottom to top, and the capacitors are connected through insulating support pillars;
the charging resistors are connected in series and then grounded; the charging resistors correspond to the capacitors one by one and are connected to the anodes of the corresponding capacitors through connecting copper sheets;
the grounding resistors are connected in series and then grounded, correspond to the capacitors one by one and are connected to the cathodes of the corresponding capacitors through connecting copper sheets;
two electrodes in the switch electrode pair are respectively connected to an upper adjacent capacitor and a lower adjacent capacitor through connecting copper sheets, one electrode is connected to the negative electrode of one capacitor, the other electrode is connected to the positive electrode of the other capacitor, and the negative electrode of the capacitor and the positive electrode of the capacitor respectively mean the negative electrode and the positive electrode which can enable the two adjacent capacitors to be connected in series after the two adjacent capacitors are conducted through the integrated rotary switch.
3. The multiple-output high-voltage pulse generator according to claim 1, wherein each of the multiple sets of trigger electrodes includes one or more identical trigger electrodes, and if the multiple sets of trigger electrodes include multiple trigger electrodes, the multiple trigger electrodes in each set are mounted at the same axial position of the insulating rotary supporting rod, and adjacent trigger electrodes in each set are dispersed at an included angle with the insulating rotary supporting rod as a rotation axis.
4. The multiple-output high-voltage pulse generator according to claim 3, wherein the included angle between any two adjacent trigger electrodes is the same.
5. The multiple-output high-voltage pulse generator according to claim 3, wherein the trigger electrodes have different angles between any two adjacent trigger electrodes.
6. The multiple-output high-voltage pulse generator according to claim 1, wherein when the trigger electrode is located between two electrodes of the switch electrode pair, the distance between the two surfaces of the trigger electrode and the two electrodes is less than 0.1 mm.
7. The multiple-output high-voltage pulse generator according to claim 1, wherein the integrated rotary switch is used in a gas-insulated environment and a transformer oil-insulated environment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210631714.7A CN114710141B (en) | 2022-06-07 | 2022-06-07 | Multiple frequency high voltage pulse generator with multiple output forms |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210631714.7A CN114710141B (en) | 2022-06-07 | 2022-06-07 | Multiple frequency high voltage pulse generator with multiple output forms |
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| CN114710141A CN114710141A (en) | 2022-07-05 |
| CN114710141B true CN114710141B (en) | 2022-08-12 |
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