CN205067543U - Multi -waveform striking current generator - Google Patents
Multi -waveform striking current generator Download PDFInfo
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- CN205067543U CN205067543U CN201520688534.8U CN201520688534U CN205067543U CN 205067543 U CN205067543 U CN 205067543U CN 201520688534 U CN201520688534 U CN 201520688534U CN 205067543 U CN205067543 U CN 205067543U
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Abstract
The utility model discloses a multi -waveform striking current generator, including battery charging unit, energy storage unit, gap switches unit, at least one adjustable wave resistance, the 2nd adjustable wave resistance, inductance, non - clearance type self -adaptation crowbar switch element and determinand microscope carrier, battery charging unit is connected to the energy storage unit, and non - clearance type self -adaptation crowbar switch element, the 2nd adjustable wave resistance and the energy storage unit of series connection are parallelly connected and lie in between the gap switches unit, a adjustable wave resistance of inductance and series connection, non - clearance type self -adaptation crowbar switch element is including quick pulse semiconductor assemble of high pressure and support frame, the high pressure quick pulse semiconductor assemble comprise first diode, second diode and connecting plate, the inductance is sidelong and is left the interval between the electrically conductive dish of electric ball and high -pressure inductance side, and the inductance is sidelong electric ball and is fixed in lifter one end. The utility model discloses output long wave coda wave shape is realized to usable less electric capacity, can be applied to I class thunder and lightning wave form, long wave tail impulse current ripples to and A ripples, the D ripples of direct lightning effect wave form, improve the electric capacity utilization efficiency.
Description
Technical field
The utility model relates to surge protector technical field of measurement and test, particularly relates to a kind of multi-waveform impulse current generator.
Background technology
Thunder and lightning is the one nature electric discharge phenomena of occurring in nature.After thunder and lightning occurs, by the effect of electrostatic induction and electromagnetic induction, in communication line, lightning surge will be formed.Multi-waveform impulse current generator is mainly used in the generator of simulation lightning current, to produce the pulse current waveform of big current long duration, be mainly used in Simulation with I level thunder and lightning (direct thunder and lightning) current waveform 10/350 μ s, aircraft direct lightning effects test waveform A component, D component, and the generator of the isometric wave rear waveform of power power-supply 10/1000 μ s.
Multi-waveform impulse current generator in the market mainly contains two kinds, and a kind of is CRL discharge loop based on conventional art, and another kind is the Crowbar discharge loop using clearance type Crowbar switch to carry out extending wave rear,
The first solution principle as shown in Figure 1, use traditional CRL discharge loop, namely by bulky capacitor energy storage, instantaneously by inductance and wave regulating resistor release, form the output waveform of big current, but the method mainly relies on the resistance R in loop to form overdamping discharge loop, impedance loop is large, shortcoming needs jumbo storage capacitor C
First scheme as shown in Figure 2, it greatly reduces the capacity of storage capacitor, its principle of work as shown in Figure 2, after main capacitor C is full of electricity, first G1 switch is triggered, when discharge current reaches peak value, high-voltage pulse generator exports high-voltage ignition signal and punctures G3 and make G2 conducting, now G2 switch is by electric capacity C, resistance R1 short circuit, inductance L 1 electric current is maximum forms afterflow bleed-off circuit by test specimen EUT, gap switch G2, by the impact of EUT and impedance loop, the electric charge slow releasing on L, thus realize the long duration waveform flowing through EUT.
(1), the control of generator is more complicated, need the triggering system simultaneously controlling two cover generators (multi-waveform impulse current generator and impulse voltage generator), impulse voltage generator is made to delay the dash current regular hour, time controling is wanted accurately, otherwise easily there is discharge failure phenomenon, control difficulty large;
(2), multiple ball apart from controlling, whole system needs to control except this cover trigger, needs the motion of controls G2 tri-ball and the coupling ball gap of G3, and the trigger sphere gap of impulse voltage generator body, and coordination difficulty is large;
(3), debug waveform difficulty, wave tail length is controlled by Crowbar energy storage inductor L1 size, but different at its loaded impedance of different test specimens, causes the more difficult adjustment of output waveform duration.
Summary of the invention
The utility model object is to provide a kind of multi-waveform impulse current generator, this multi-waveform impulse current generator can utilize less electric capacity to realize exporting long wave coda wave shape, can be applicable to I class thunder and lightning waveform 10/350us, steep impulse current waveform 1/10us, long wave tail slide hits current wave 10/1000 μ s, and A ripple (6.4/69 μ s), the D ripple (3.2/34.5 μ s) of direct thunder and lightning (or indirect thunder and lightning) effect waveform, improve electric capacity utilization ratio.
For achieving the above object, the technical solution adopted in the utility model is: a kind of multi-waveform impulse current generator, comprise charhing unit, energy-storage units, gap switch unit, at least one first wave regulating resistor, the second wave regulating resistor, inductance, non-gap type self-adaptation Crowbar switch element and determinand microscope carrier, described charhing unit is connected to energy-storage units, and the non-gap type self-adaptation Crowbar switch element of series connection, the second wave regulating resistor are in parallel with energy-storage units and between inductance and the gap switch unit be connected in series, the first wave regulating resistor;
Described gap switch unit comprises spaced high-voltage capacitance side conductive plate, high voltage induction side conductive plate and low pressure conductive plate, this high-voltage capacitance side conductive plate, to be located by connecting by insulating support rod between high voltage induction side conductive plate and low pressure conductive plate, one capacitive side ball discharge is installed on the conductive plate of high-voltage capacitance side, one inductance side ball discharge is installed on the conductive plate of high voltage induction side, described capacitive side ball discharge and inductance side ball discharge arrange in opposite directions and between leave gap;
Described non-gap type self-adaptation Crowbar switch element comprises high-voltage high-speed impulse semiconductor assembly and bracing frame, described high-voltage high-speed impulse semiconductor assembly is by the first diode, second diode and web joint composition, this first diode, second diode is installed on web joint respectively, downside and the first diode be electrically connected with web joint, the polarity of the second diode one end is separately contrary, described web joint is positioned at the first diode, on second diode, the middle part of downside is fixed with a commutation rotating shaft, these commutation rotating shaft two ends are all installed on bracing frame by bearing seat,
In described first diode, the second diode, a diode other end is connected to second wave regulating resistor one end, and in described first diode, the second diode, another diode other end is connected to the low pressure end of determinand microscope carrier and the low pressure conductive plate of gap switch unit;
The high voltage induction side conductive plate of described gap switch unit is connected to inductance one end and the second wave regulating resistor other end, the low pressure conductive plate of described gap switch unit is connected to the low pressure end of determinand microscope carrier, and the described inductance other end is as the high-voltage output end of the high-pressure side for connecting determinand microscope carrier;
Interval is left between described inductance side ball discharge and high voltage induction side conductive plate, and inductance side ball discharge is fixed on elevating lever one end, this inductance side ball discharge is electrically connected with high voltage induction side conductive plate by several soft buss, and one is connected with the elevating lever other end for the motor driving elevating lever to move up and down.
The technical scheme that technique scheme is improved further is as follows:
1., in such scheme, described capacitive side ball discharge, inductance side ball discharge are semi-spherical shape.
2., in such scheme, described first wave regulating resistor is wire resistance.
3. in such scheme, described energy-storage units is made up of the capacitor unit of several parallel connections, and the number of described first wave regulating resistor is equal with the number of capacitor unit, and each capacitor unit is connected with first wave regulating resistor.
4., in such scheme, an offresistance is connected across between the low pressure end of the inductance other end and determinand microscope carrier.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1. the utility model multi-waveform impulse current generator, compared with the high and existing discharge loop of its wave form output efficiency, can increase substantially electric capacity utilization factor, can realize larger long wave coda wave shape with less electric capacity.According to C=40uF, charging voltage is 100kV is example, existing discharge loop is used to form 10/350 waveform, need loop resistance R1 about 14 Ω, harmonic inductance L 1 about 30uH, the 10/350us waveform of exportable about 7kA, and use the utility model to pass through wave regulating resistor R1=0.5 Ω, harmonic inductance 10uH, wave terminal resistance 20m Ω.Exportable about 100kA10/350us waveform.
2. the utility model multi-waveform impulse current generator, it is simple to operate, reduce test failure rate, overcome prior art and use three gap switch structures, the triggering and conducting of three gap switches must be carried out by a supporting high-voltage impact voltage generator, its output voltage is generally higher than 2 times of charging voltage of main current generator and the defect such as stability is poor, it adopts the utility model non-gap type self-adaptation Crowbar switch element to comprise high-voltage high-speed impulse semiconductor assembly and bracing frame, described high-voltage high-speed impulse semiconductor assembly is by the first diode, second diode and web joint composition, without the need to other impulse voltage generator, generator avoids and occurs out-of-control phenomenon, success ratio is almost 100%.
3. the utility model multi-waveform impulse current generator, its output waveform is smooth, peak value is without concussion, in prior art, the conducting of G2 switch needs high-tension impulse voltage generator to trigger, and this portion of energy can be superimposed upon in discharge loop, to cause forming concussion at crest place, and the utility model switch can not form peak value concussion, waveform comparison is smooth.
4. the utility model multi-waveform impulse current generator, interval is left between its inductance side ball discharge and high voltage induction side conductive plate, and inductance side ball discharge is fixed on elevating lever one end, this inductance side ball discharge is electrically connected with high voltage induction side conductive plate by several soft buss, one is connected with the elevating lever other end for the motor driving elevating lever to move up and down, dynamic control capacittance side ball discharge and inductance side ball discharge distance.
Accompanying drawing explanation
Fig. 1 is prior art multi-waveform impulse current generator principle schematic one;
Fig. 2 is prior art multi-waveform impulse current generator principle schematic two;
Fig. 3 is the utility model multi-waveform impulse current generator electronic schematic diagram;
Fig. 4 is capacitor discharge current waveform (Icap) in the utility model multi-waveform impulse current generator;
Fig. 5 is the utility model non-gap type self-adaptation Crowbar switch element feedback current waveform (Idiode);
Fig. 6 is the actual current waveform flow through of test specimen in the utility model multi-waveform impulse current generator;
Fig. 7 is the utility model multi-waveform impulse current generator structural representation;
Fig. 8 is the utility model multi-waveform impulse current generator partial structurtes schematic diagram one;
Fig. 9 is the utility model multi-waveform impulse current generator partial structurtes schematic diagram two;
Figure 10 is the utility model multi-waveform impulse current generator partial structurtes schematic diagram three;
Figure 11 is the utility model multi-waveform impulse current generator partial structurtes schematic diagram four;
Figure 12 is the utility model multi-waveform impulse current generator output waveform figure.
In above accompanying drawing: 1, charhing unit; 2, energy-storage units; 211, capacitor unit; 3, gap switch unit; 4, the first wave regulating resistor; 5, the second wave regulating resistor; 6, inductance; 7, non-gap type self-adaptation Crowbar switch element; 8, determinand microscope carrier; 9, high-voltage capacitance side conductive plate; 10, high voltage induction side conductive plate; 11, low pressure conductive plate; 12, insulating support rod; 13, capacitive side ball discharge; 14, inductance side ball discharge; 15, high-voltage high-speed impulse semiconductor assembly; 151, the first diode; 152, the second diode; 153, web joint; 16, bracing frame; 17, commutate rotating shaft; 171, pilot hole; 18, bearing seat; 19, transparent housing; 20, detent mechanism; 201, fixed block; 202, through hole; 203, Elastip pin; 21, offresistance; 22, elevating lever; 23, soft bus; 24, motor.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment: a kind of multi-waveform impulse current generator, comprise charhing unit 1, energy-storage units 2, gap switch unit 3, at least one the first wave regulating resistor 4, second wave regulating resistor 5, inductance 6, non-gap type self-adaptation Crowbar switch element 7 and determinand microscope carrier 8, described charhing unit 1 is connected to energy-storage units 2, and non-gap type self-adaptation Crowbar switch element 7, second wave regulating resistor 5 of series connection is in parallel with energy-storage units 2 and between inductance 6 and gap switch unit 3, first wave regulating resistor 4 be connected in series;
Described gap switch unit 3 comprises spaced high-voltage capacitance side conductive plate 9, high voltage induction side conductive plate 10 and low pressure conductive plate 11, this high-voltage capacitance side conductive plate 9, to be located by connecting by insulating support rod 12 between high voltage induction side conductive plate 10 and low pressure conductive plate 11, one capacitive side ball discharge 13 is installed on high-voltage capacitance side conductive plate 9, one inductance side ball discharge 14 is installed on high voltage induction side conductive plate 10, described capacitive side ball discharge 13 and inductance side ball discharge 14 arrange in opposite directions and between leave gap;
Described non-gap type self-adaptation Crowbar switch element 7 comprises high-voltage high-speed impulse semiconductor assembly 15 and bracing frame 16, described high-voltage high-speed impulse semiconductor assembly 15 is by the first diode 151, second diode 152 and web joint 153 form, this first diode 151, second diode 152 is installed on web joint 153 respectively, downside and the first diode 151 be electrically connected with web joint 153, the polarity of the respective one end of the second diode 152 is contrary, described web joint 153 is positioned at the first diode 151, on second diode 152, the middle part of downside is fixed with a commutation rotating shaft 17, these commutation rotating shaft 17 two ends are all installed on bracing frame 16 by bearing seat 18,
In described first diode 151, second diode 152, a diode other end is connected to second wave regulating resistor 5 one end, and in described first diode 151, second diode 152, another diode other end is connected to the low pressure end of determinand microscope carrier 8 and the low pressure conductive plate 11 of gap switch unit 3;
The high voltage induction side conductive plate 10 of described gap switch unit 3 is connected to inductance 6 one end and second wave regulating resistor 5 other end, the low pressure conductive plate 11 of described gap switch unit 3 is connected to the low pressure end of determinand microscope carrier 8, and described inductance 6 other end is as the high-voltage output end of the high-pressure side for connecting determinand microscope carrier 8;
Interval is left between described inductance side ball discharge 14 and high voltage induction side conductive plate 10, and inductance side ball discharge 14 is fixed on elevating lever one end, this inductance side ball discharge 14 is electrically connected with high voltage induction side conductive plate 10 by several soft buss 23, and one is connected with elevating lever 22 other end for the motor 24 driving elevating lever 22 to move up and down.
Above-mentioned capacitive side ball discharge 13, inductance side ball discharge 14 are semi-spherical shape.
Above-mentioned first wave regulating resistor 4 is wire resistance.
One offresistance 21 is connected across between the low pressure end of inductance 6 other end and determinand microscope carrier 8.
Above-mentioned energy-storage units 2 is made up of the capacitor unit 211 of several parallel connections, and the number of described first wave regulating resistor 4 is equal with the number of capacitor unit 211, and each capacitor unit 211 is connected with first wave regulating resistor 4.
Its principle of work of the utility model multi-waveform impulse current generator is as follows:
(1) after capacitor C is full of electricity, discharged by ball discharge gap G1, now due to capacitor being positive charge, diode reverse ends not conducting, and discharge loop is C-G1-R1-L1-EUT-C, forms closed CRL discharge loop;
(2) after discharge loop electric current reaches maximal value, now condenser voltage is zero, but owing to there being the existence of inductance in loop, therefore inductance can keep the electric current in loop to make electric current flow through test product, then be reversed capacitor charging, but electric current can be caused to return inductance along diode due to the existence of diode, form the LR discharge loop be made up of L-EUT-R2-D1-L, until inductance ability is all run out of by R2, formed and continue wave rear;
(3) loop output waveform, its testing current loop-around test point distribution plan as shown in Figure 3, pass through loop simulation, visible capacitor discharge loop current (Icap), the electric current (Ieut) of test specimen and the feedback current (Idiode) by diode, (with C=40uF, R1=0.2 Ω, L1=10 μ H, R2=0.02 Ω are example)
Adopt the utility model multi-waveform impulse current generator, compared with the high and existing discharge loop of its wave form output efficiency, electric capacity utilization factor can be increased substantially, larger long wave coda wave shape can be realized with less electric capacity.According to C=40uF, charging voltage is 100kV is example, existing discharge loop is used to form 10/350 waveform, need loop resistance R1 about 14 Ω, harmonic inductance L 1 about 30uH, the 10/350us waveform of exportable about 7kA, and use the utility model to pass through wave regulating resistor R1=0.5 Ω, harmonic inductance 10uH, wave terminal resistance 20m Ω.Exportable about 100kA10/350us waveform.
The utility model multi-waveform impulse current generator, it is simple to operate, reduce test failure rate, overcome prior art and use three gap switch structures, the triggering and conducting of three gap switches must be carried out by a supporting high-voltage impact voltage generator, its output voltage is generally higher than 2 times of charging voltage of main current generator and the defect such as stability is poor, it adopts the utility model non-gap type self-adaptation Crowbar switch element to comprise high-voltage high-speed impulse semiconductor assembly and bracing frame, described high-voltage high-speed impulse semiconductor assembly is by the first diode, second diode and web joint composition, without the need to other impulse voltage generator, generator avoids and occurs out-of-control phenomenon, success ratio is almost 100%.
Existing gap switch is after switch G1 conducting, triggers impulse voltage generator with conducting G2 by the time delay regular hour, realizes triggering G2 at waveform peak place, forms discharge loop.If but capacitor voltage at both ends is 0 during G2 switch triggering, the stability of switch triggering is poor, easily occur triggering failed situation.And using the Crowbar switch of diode, generator avoids and occurs out-of-control phenomenon, and success ratio is almost 100%.
The utility model multi-waveform impulse current generator, its output waveform is smooth, peak value is without concussion, in prior art, the conducting of G2 switch needs high-tension impulse voltage generator to trigger, and this portion of energy can be superimposed upon in discharge loop, to cause forming concussion at crest place, and the utility model switch can not form peak value concussion, waveform comparison is smooth.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (5)
1. a multi-waveform impulse current generator, it is characterized in that: comprise charhing unit (1), energy-storage units (2), gap switch unit (3), at least one first wave regulating resistor (4), second wave regulating resistor (5), inductance (6), non-gap type self-adaptation Crowbar switch element (7) and determinand microscope carrier (8), described charhing unit (1) is connected to energy-storage units (2), non-gap type self-adaptation Crowbar switch element (7) of series connection, second wave regulating resistor (5) is in parallel with energy-storage units (2) and be positioned at inductance (6) and the gap switch unit (3) that is connected in series, between first wave regulating resistor (4),
Described gap switch unit (3) comprises spaced high-voltage capacitance side conductive plate (9), high voltage induction side conductive plate (10) and low pressure conductive plate (11), this high-voltage capacitance side conductive plate (9), be located by connecting by insulating support rod (12) between high voltage induction side conductive plate (10) and low pressure conductive plate (11), one capacitive side ball discharge (13) is installed on high-voltage capacitance side conductive plate (9), one inductance side ball discharge (14) is installed on high voltage induction side conductive plate (10), described capacitive side ball discharge (13) and inductance side ball discharge (14) arrange in opposite directions and between leave gap,
Described non-gap type self-adaptation Crowbar switch element (7) comprises high-voltage high-speed impulse semiconductor assembly (15) and bracing frame (16), described high-voltage high-speed impulse semiconductor assembly (15) is by the first diode (151), second diode (152) and web joint (153) composition, this first diode (151), second diode (152) is installed on web joint (153) respectively, downside and the first diode (151) be electrically connected with web joint (153), the polarity of the respective one end of the second diode (152) is contrary, described web joint (153) is positioned at the first diode (151), on second diode (152), the middle part of downside is fixed with a commutation rotating shaft (17), these commutation rotating shaft (17) two ends are all installed on bracing frame (16) by bearing seat (18),
In described first diode (151), the second diode (152), a diode other end is connected to the second wave regulating resistor (5) one end, and in described first diode (151), the second diode (152), another diode other end is connected to the low pressure end of determinand microscope carrier (8) and the low pressure conductive plate (11) of gap switch unit (3);
High voltage induction side conductive plate (10) of described gap switch unit (3) is connected to inductance (6) one end and the second wave regulating resistor (5) other end, the low pressure conductive plate (11) of described gap switch unit (3) is connected to the low pressure end of determinand microscope carrier (8), and described inductance (6) other end is as the high-voltage output end of the high-pressure side for connecting determinand microscope carrier (8);
Interval is left between described inductance side ball discharge (14) and high voltage induction side conductive plate (10), and elevating lever one end is fixed in inductance side ball discharge (14), this inductance side ball discharge (14) is electrically connected with high voltage induction side conductive plate (10) by several soft buss (23), and one is connected with elevating lever (22) other end for the motor (24) driving elevating lever (22) to move up and down.
2. multi-waveform impulse current generator according to claim 1, is characterized in that: described capacitive side ball discharge (13), inductance side ball discharge (14) are semi-spherical shape.
3. multi-waveform impulse current generator according to claim 1, is characterized in that: described first wave regulating resistor (4) is wire resistance.
4. multi-waveform impulse current generator according to claim 1, it is characterized in that: described energy-storage units (2) is made up of the capacitor unit (211) of several parallel connections, the number of described first wave regulating resistor (4) is equal with the number of capacitor unit (211), and each capacitor unit (211) is connected with first wave regulating resistor (4).
5. according to multi-waveform impulse current generator according to claim 1, it is characterized in that: an offresistance (21) is connected across between the low pressure end of inductance (6) other end and determinand microscope carrier (8).
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| CN201520688534.8U CN205067543U (en) | 2015-09-08 | 2015-09-08 | Multi -waveform striking current generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372462A (en) * | 2015-09-08 | 2016-03-02 | 苏州泰思特电子科技有限公司 | Multi-waveform impact current generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372462A (en) * | 2015-09-08 | 2016-03-02 | 苏州泰思特电子科技有限公司 | Multi-waveform impact current generator |
| CN105372462B (en) * | 2015-09-08 | 2019-06-14 | 苏州泰思特电子科技有限公司 | Multi-waveform impulse current generator |
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