CN208476982U - The multiple counterattack wave impact current feedback circuit realized using vacuum switch - Google Patents
The multiple counterattack wave impact current feedback circuit realized using vacuum switch Download PDFInfo
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- CN208476982U CN208476982U CN201820315922.5U CN201820315922U CN208476982U CN 208476982 U CN208476982 U CN 208476982U CN 201820315922 U CN201820315922 U CN 201820315922U CN 208476982 U CN208476982 U CN 208476982U
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Abstract
The utility model realizes the multiple multiple-pulse impulse current generator for fighting back wave using vacuum switch more particularly to a kind of.It includes two sets of high voltage direct current charge power supplies, two charging resistors, three disconnecting switch, several set capacitor groups, several vacuum switches and harmonic impedance.Three electrode electrion ball gaps are replaced using several vacuum switches, it is no longer necessary to the transmission mechanism of three ball electrode gap adjustments and the device of measurement sphere gap size, and the pulse amplifier of three electrode discharge ball gaps of triggering；Switch the circuit of the charging and discharging of multiple-pulse impulse current generator using three disconnecting switch and several vacuum switches, save a large amount of charging resistor, to simplify the structure of system, the stability and reliability of the operation of multiple-pulse impulse current generator are improved.The electric performance test field in the test of aircraft lightning effects and surge protector can be applied.
Description
Technical field
The utility model relates to aircraft Lightning Test and surge protector testing field more particularly to it is a kind of use vacuum
Switch realizes the multiple multiple-pulse impulse current generator for fighting back wave.
Background technique
Thunder and lightning is the production and life of the natural phenomena of gas discharge in the Nature, direct effect and indirect effect to people
Work causes extreme influence.Influence of the thunder and lightning to various electric products in order to prevent, people have carried out largely atmospheric electrical phenomena
The waveform standard of a variety of lightning protection tests has been formulated in research.U.S. automotive engineer learns the SAE ARP 5412 that (SAE) is formulated
Thunder and lightning environment and correlation test waveform, ED (EUROCAE Documents) series with European civil aviation equipment group hair-weaving cloth
, it is specified that multiple counterattack wave (Multiple stroke waveform in standard ED-84 thunder and lightning environment and correlation test waveform
Set waveform standard).In recent years, gradually stringent with standard, it is also gradually used multiple time in surge protector testing field
It hits wave and carries out multiple-pulse test.
According to the multiple regulation for fighting back wave standard, the peak value of first current impulse wave is 100kA, and wave front time is not more than
25 μ s, current duration are no more than 500 μ s, provide, second pulse identical as the D wave that lightning current direct effect is tested
The peak value of more than ten or twenties current impulses is that 50kA, wave front time and duration and first pulsion phase are same later.
Minimum interval between two current impulse waves is 10ms, maximum time interval 200ms.As shown in Figure 1, being multiple time
Hit the regulation of the waveform of 14 pulse groups of wave.
Traditional multiple counterattack wave impact current feedback circuit, as shown in Fig. 2, mainly including high voltage direct current charge power supply A；It is high
Press DC charging power supply B；Capacitor group C1, C2 ..., C (n-1), Cn；Charging resistor R1, R2 ..., R (n-1), Rn, harmonic resistance
Anti- Z1, Z2 ..., Z (n-1), Zn；Three electrode electrion ball gap G1, G2 ..., G (n-1), Gn；Subject load RL.Wherein n is
According to different standard requirements and the pulse number value for needing at most to generate, if to generate 14 pulses shown in FIG. 1
Current wave, then n is equal to 14.
It is the two of remaining current impulse crest value since the multiple peak value for fighting back first current impulse wave of wave is 100kA
Times, it is some higher thus electric to capacitor by charging resistor R1 with a set of high voltage direct current charge power supply A to generally require charging voltage
Container group C1 individually charges.Since C2, by high voltage direct current charge power supply B by charging resistor R2, R3 ..., R (n-1), Rn couples
Each capacitor group C2, C3 ..., C (n-1), Cn charged in parallel.After being charged to pre-set voltage, successively by control system
To three electrode electrion ball gap G1, G2 ..., G (n-1), Gn trigger, every two groups of discharge balls gap triggered time is spaced in
Between 10ms and 200ms, while guaranteeing that first is triggered to the time of the last one triggering within the scope of standard requirements, such as Fig. 1
Shown in current waveform, it is desirable that first be triggered to the last one triggering total time less than 1.5 seconds.Tradition shown in Fig. 2
Multiple counterattack wave impact current feedback circuit in, charging resistor R1, R2 ..., the resistance value of R (n-1), Rn be the k Ω order of magnitude, harmonic
Impedance Z 1, Z2 ..., the resistance value of Z (n-1), Zn be the m Ω order of magnitude, therefore discharge ball gap G2 ..., G (n-1), Gn successively trigger and put
Influence of the electricity to remaining capacitor group that do not discharge also is fairly limited, so as to generate multiple-pulse electric discharge electricity shown in FIG. 1
Stream.
Traditional multiple counterattack wave impact current feedback circuit the problem is that, three electrode electrion ball gap G1,
G2 ..., G (n-1), structure is complicated by Gn, the transmission mechanism that each pair of discharge ball gap will have a set of sphere gap to adjust needs a set of ball
The measuring device of gap size, while also to have the trigger amplifier of three electrode discharge ball gaps.In addition to these complicated machines
Outside structure and device, also to have a large amount of charging resistor R1, R2 ..., R (n-1), Rn.If the adjustment of sphere gap size is improper, fill
In electric process, some discharge ball gaps are possible to trigger just malfunction electric discharge not yet；It is successively right in control system after charging complete
Three electrode electrion ball gap G1, G2 ..., G (n-1), Gn be when being triggered, since high current pulsed discharge circuit causes ground electricity
The lifting and electromagnetic interference of position will cause the failure for being likely to occur self discharge between each sphere gap or not discharging, so that
It is impulse current generator fluctuation of service, unreliable, lead to test failure.
Summary of the invention
The utility model overcomes deficiency in the prior art, replaces three electrode electrion balls using several vacuum switches
Gap, to simplify the structure of system, it is no longer necessary to the device of transmission mechanism and measurement sphere gap size that sphere gap is adjusted, and
The pulse amplifier of three electrode discharge ball gaps is triggered, while saving most charging resistor.If using three disconnecting switch and
Dry platform vacuum switch come switch it is multiple fight back wave impact current feedback circuit charging and discharging circuit.
The embodiments of the present invention:
As shown in figure 3, it includes high voltage direct current charge power supply A；High voltage direct current charge power supply B；Charging resistor R1, R2；Electricity
Container group C1, C2 ..., C (n-1), Cn；Harmonic impedance Z 1, Z2 ..., Z (n-1), Zn；Disconnecting switch KS1, KS2, KS3；Vacuum
Switch KC1, KC2 ..., KC (n-1), KCn and KT1, KT2 ..., KT (n-1), KTn；Subject load RL.Wherein n is according to not
Same standard requirements and the pulse number value for needing at most to generate, if to generate 14 pulse current waves shown in FIG. 1,
Then n is equal to 14.
It after high voltage direct current charge power supply A connects with charging resistor R1, connects with disconnecting switch KS1, is filled to capacitor group C1
Electricity.After the high-pressure stage outlet of capacitance group C1 is connected with harmonic impedance Z 1, then it is sequentially connected vacuum switch KC1 and KT1, vacuum switch
A pole of KT1 is extremely connected with the one of disconnecting switch KS3.
After the high-pressure stage outlet of capacitance group C2 is connected with harmonic impedance Z 2, then it is sequentially connected vacuum switch KC2 and KT2；Electricity
After the high-pressure stage outlet of appearance group C3 is connected with harmonic impedance Z 3, then it is sequentially connected vacuum switch KC3 and KT3；…；Capacitance group C (n-
1) after high-pressure stage outlet is connected with harmonic impedance Z (n-1), then vacuum switch KC (n-1) and KT (n-1) are sequentially connected；High pressure
It after DC charging power supply B connects with charging resistor R2, connects with disconnecting switch KS2, charges to capacitor group Cn, capacitance group Cn's
After high-pressure stage outlet is connected with harmonic impedance Z n, then it is sequentially connected vacuum switch KCn and KTn；Vacuum switch KT2, KT3 ..., KT
(n-1) and after another extremely parallel connection of KTn, extremely it is connected with the one of disconnecting switch KS3.Another pole of disconnecting switch KS3 and subject are negative
Carry RL series connection.
In the present invention, after a pole of every group capacitor is connected with harmonic impedance, then successively with two vacuum switches
Series connection, replaces three electrode electrion ball gaps with vacuum switch.When due to vacuum switch combined floodgate or separating brake, acted by mechanical structure
It being limited, intrinsic actuation time is all larger than 150ms, the combined floodgate then movement of separating brake again cannot be completed being less than in the 200ms period,
Therefore, every group capacitor uses two vacuum switches, and before electric discharge, a vacuum switch is in "on" position, and another vacuum is opened
It closes and is in gate-dividing state.When electric discharge, the vacuum switch in gate-dividing state carries out feed motion, and is in the vacuum of "on" position
Separating brake movement is carried out after switch time delay several ms, to offset mechanical action time delay, every group capacitor can be made to pass through true
The period of empty switch discharge controls within several ms.
In the present invention, when charging, disconnecting switch KS3 is in an off state.Capacitance group C1 is by being in closed state
Disconnecting switch KS1, charged by charging resistor R1 by high voltage direct current charge power supply A, at this point, being connect very with capacitance group C1
It is spaced apart pass KC1 and KT1 and is in gate-dividing state.Capacitor group C2, C3 ..., C (n-1), Cn be in the vacuum of "on" position by opening
Close KC2, KC3 ..., KC (n-1) and KCn, KT2, KT3 ..., KT (n-1) and KTn it is in parallel, by being in keeping apart for closed state
KS2 is closed, is charged by charging resistor R2 by high voltage direct current charge power supply B.Save a large amount of charging resistor, so that a whole set of punching
Current generator configuration is hit to be simplified.
The utility model has the advantage that compared with traditional technology
1) the utility model replaces three electrode electrion ball gaps using several vacuum switches, to simplify the knot of system
Structure, it is no longer necessary to the device of transmission mechanism and measurement sphere gap size that sphere gap is adjusted, and three electrode discharge ball gaps of triggering
Pulse amplifier.
2) the utility model switches multiple counterattack wave impact electric current using three disconnecting switch and several vacuum switches
A large amount of charging resistor is saved in the circuit of the charging and discharging of generator, so that a whole set of impulse current generator structure is able to letter
Change.
3) the utility model uses the switching value sequential control of vacuum switch, stable, high reliablity.
Detailed description of the invention
Waveform diagram as defined in the multiple counterattack wave standard of Fig. 1；
Fig. 2 traditional multiple counterattack wave impact current feedback circuit circuit diagram；
The multiple counterattack wave impact current feedback circuit circuit diagram of Fig. 3 the utility model；
Specific embodiment
The utility model specifically includes that two sets of high voltage direct current charge power supplies, two charging resistors, three disconnecting switch, n group
Capacitor group, 2n platform vacuum switch, n harmonic impedance and a subject load.Wherein n be according to different standard requirements and
The pulse number value for needing at most to generate, if to generate 14 pulse current waves shown in FIG. 1, n is equal to 14.
Embodiment: it such as Fig. 3, after high voltage direct current charge power supply A connects with charging resistor R1, connects, gives with disconnecting switch KS1
Capacitor group C1 charging.After the high-pressure stage outlet of capacitance group C1 is connected with harmonic impedance Z 1, then be sequentially connected vacuum switch KC1 and
A pole of KT1, vacuum switch KT1 are extremely connected with the one of disconnecting switch KS3.The high-pressure stage outlet and harmonic impedance Z 2 of capacitance group C2
After series connection, then it is sequentially connected vacuum switch KC2 and KT2；After the high-pressure stage outlet of capacitance group C3 is connected with harmonic impedance Z 3, then according to
Secondary connection vacuum switch KC3 and KT3；…；After the high-pressure stage outlet of capacitance group C (n-1) is connected with harmonic impedance Z (n-1), then according to
Secondary connection vacuum switch KC (n-1) and KT (n-1)；After high voltage direct current charge power supply B connects with charging resistor R2, with disconnecting switch
KS2 series connection, charges to capacitor group Cn, after the high-pressure stage outlet of capacitance group Cn is connected with harmonic impedance Z n, then is sequentially connected true
It is spaced apart and closes KCn and KTn；Vacuum switch KT2, KT3 ..., KT (n-1) and KTn it is another it is extremely in parallel after, with disconnecting switch KS3's
One is extremely connected.It connects with subject load RL another pole of disconnecting switch KS3.
Such as Fig. 3, when the impulse current generator charges, disconnecting switch KS1, KS2 is in closed state, disconnecting switch
KS3 is in an off state；Vacuum switch KC1 and KT1 are in gate-dividing state；Vacuum switch KC2, KC3 ..., KC (n-1) and KCn
In "on" position；Vacuum switch KT2, KT3 ..., KT (n-1) and KTn be in "on" position.High voltage direct current charge power supply A is logical
Overcharge resistance R1 charges to capacitance group C1.High voltage direct current charge power supply B by charging resistor R2 to capacitance group C2, C3 ..., C
(n-1), Cn carries out charged in parallel.
Such as Fig. 3, when the impulse current generator charging finishes, the preparation before being discharged.Movement in the following order:
Firstly, disconnecting disconnecting switch KS1, KS2.Then, vacuum switch KC2, KC3 ..., KC (n-1) and KCn separating brake, and vacuum switch
KT2, KT3 ..., KT (n-1) and KTn keep "on" position；Meanwhile vacuum switch KT1 closes a floodgate, vacuum switch KC1 continues
In gate-dividing state.Finally, disconnecting switch KS3 is closed, access subject load RL.
Such as Fig. 3, the impulse current generator charging is finished, before electric discharge be ready for it is appropriate after, if necessary to real
The time interval of existing every two current impulse is the multiple counterattack wave of 50ms (such as Fig. 1, Δ t=50ms), it is assumed that each vacuum is opened
It closes closing time and opening time is 150ms, after control system issues electric discharge instruction, in chronological order successively to all true
Be spaced apart pass and issue action command: delay 100ms vacuum switch KC1 closes a floodgate；Be delayed 120ms vacuum switch KT1 separating brake；Delay
150ms vacuum switch KC2 closes a floodgate；Be delayed 170ms vacuum switch KT2 separating brake；…；Delay [100+ (n-2) × 50] ms vacuum is opened
KC (n-1) is closed to close a floodgate；Be delayed [120+ (n-2) × 50] ms vacuum switch KT (n-1) separating brake；Be delayed [100+ (n-1) × 50] ms
Vacuum switch KCn closes a floodgate；Be delayed [120+ (n-1) × 50] ms vacuum switch KTn separating brake.If n value is 14, when control is
After system issues electric discharge instruction, first electric current arteries and veins is generated within delay 0.25 second (delay 100ms, vacuum switch closing time 150ms)
Hereafter punching generates a current impulse every 50ms, 14 pulses is shared, as shown in Figure 1,14 multiple-pulse total times do not surpass
0.7 second is spent, standard requirements are met.If some switch motion time is 160ms, corresponding delay time subtracts 10ms；Such as
Some switch motion time of fruit is 140ms, then corresponding delay time increases 10ms.And so on.Because vacuum switch is mechanical
Time of movement is opposite be it is stable, adjust in this way, can produce the multiple counterattack wave impact electric current of standard, and impact
Current feedback circuit is stable, high reliablity.
Claims (3)
1. a kind of multiple counterattack wave impact current feedback circuit realized using vacuum switch, including two sets of high voltage direct current charging electricity
Source, two charging resistors, three disconnecting switch, several set capacitor groups, a subject load, several vacuum switches and harmonic
Impedance, it is characterised in that: wherein one charging resistor of a set of high voltage direct current charge power supply series connection connects a disconnecting switch, can
It charging to a part of capacitor group, one charging resistor of another set of high voltage direct current charge power supply series connection connects a disconnecting switch,
Capacitor group charging to rest part, a disconnecting switch and subject load in series, can disconnect during the charging process and load back
Road after one pole of every group capacitor is connected with harmonic impedance, then is sequentially connected in series with two vacuum switches, replaces three with vacuum switch
Electrode electrion ball gap.
2. multiple counterattack wave impact current feedback circuit according to claim 1, it is characterised in that: impulse current generator is put
When electric, with concatenated two vacuum switches of every group capacitor, one is acted from gate-dividing state to "on" position, and another by closing a floodgate
State is acted to gate-dividing state, when to shorten electric discharge in discharge loop point, the actuation time of the states such as splitting or integrating.
3. multiple counterattack wave impact current feedback circuit according to claim 1, it is characterised in that: use three disconnecting switch
Charging electricity is reduced in the circuit for switching the multiple charging and discharging for fighting back wave impact current feedback circuit with several vacuum switches
Resistance, so that a whole set of impulse current generator structure is simplified.
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| CN201820315922.5U CN208476982U (en) | 2018-03-07 | 2018-03-07 | The multiple counterattack wave impact current feedback circuit realized using vacuum switch |
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| CN201820315922.5U CN208476982U (en) | 2018-03-07 | 2018-03-07 | The multiple counterattack wave impact current feedback circuit realized using vacuum switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108196100A (en) * | 2018-03-06 | 2018-06-22 | 北京华天机电研究所有限公司 | The multiple counterattack wave impact current feedback circuit realized using vacuum switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108196100A (en) * | 2018-03-06 | 2018-06-22 | 北京华天机电研究所有限公司 | The multiple counterattack wave impact current feedback circuit realized using vacuum switch |
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