CN106301306B - A kind of and matching used active trigger device of Triggered Vacuum Switch - Google Patents
A kind of and matching used active trigger device of Triggered Vacuum Switch Download PDFInfo
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- CN106301306B CN106301306B CN201610866449.5A CN201610866449A CN106301306B CN 106301306 B CN106301306 B CN 106301306B CN 201610866449 A CN201610866449 A CN 201610866449A CN 106301306 B CN106301306 B CN 106301306B
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/04—Modifications for accelerating switching
- H03K17/0403—Modifications for accelerating switching in thyristor switches
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
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Abstract
The invention discloses a kind of and matching used active trigger devices of Triggered Vacuum Switch, comprising: optical signal generation circuit, thyristor gating circuit, pulse-generating circuit and active freewheeling circuit；The input terminal of thyristor gating circuit is connected to the output end of optical signal generation circuit, thyristor gating circuit successively exports the first pulse signal and the second pulse signal respectively, the input terminal of the input terminal of pulse-generating circuit and active freewheeling circuit is connected to the output end of thyristor gating circuit, the output end of the output end of pulse-generating circuit and active freewheeling circuit is used to the input terminal of connection Triggered Vacuum Switch, pulse-generating circuit is according to first the first trigger signal of output of pulse signal and controls Triggered Vacuum Switch breakdown triggering along face, source freewheeling circuit is according to second the second trigger signal of output of pulse signal and to control Triggered Vacuum Switch triggered along face afterflow.Trigger voltage of the invention may be up to 15kV to 20kV, and for trigger voltage up to 680A, trigger device is small in size.
Description
Technical field
The invention belongs to highpowerpulse technical fields, match more particularly, to one kind with Triggered Vacuum Switch
Active trigger device.
Background technique
Triggered Vacuum Switch is a kind of by Vacuum Relay Technique and the combined new device of three-electrode spark technology,
And it is applied in highpowerpulse system, the triggering mode of Triggered Vacuum Switch has laser triggering and pulse-triggered two
Kind, the difference of the two is that the former generates initial plasma using laser irradiation, and pulse-triggered is to be generated by breakdown along face
Initial plasma.For the trigger source of Triggered Vacuum Switch, main feature is by trigger voltage, two scales of trigger current
Sign.
The work of Triggered Vacuum Switch has the following technical problems: (1) Triggered Vacuum Switch in the power system in use,
Since switching voltage will become industrial-frequency alternating current, voltage will become negative pressure, in the case the working method of Triggered Vacuum Switch
Become negative polarity triggering, it is unreliable that Triggered Vacuum Switch works under cathode sexual norm.(2) Triggered Vacuum Switch is opened not
It is big that trigger voltage should be pursued simply, and too high voltages can make Triggered Vacuum Switch tail portion discharge.
Summary of the invention
In view of the drawbacks of the prior art, the purpose of the present invention is to provide it is a kind of with Triggered Vacuum Switch is matching used has
Source trigger device, it is intended to which solving Triggered Vacuum Switch cannot the reliable conduction problem of a hundred percent under positive condition.
The present invention provides a kind of and matching used active trigger devices of Triggered Vacuum Switch, comprising: optical signal generates
Circuit, thyristor gating circuit, pulse-generating circuit and active freewheeling circuit；The input terminal of the thyristor gating circuit connects
To the output end of optical signal generation circuit, the thyristor gating circuit successively exports the first pulse signal and the second pulse respectively
The input terminal of signal, the input terminal of pulse-generating circuit and active freewheeling circuit is connected to the output of thyristor gating circuit
The output end of end, the output end of pulse-generating circuit and active freewheeling circuit is used to the input terminal of connection Triggered Vacuum Switch,
The pulse-generating circuit is according to first trigger signal of the first output of pulse signal and controls Triggered Vacuum Switch breakdown touching
For hair along face, the active freewheeling circuit is according to second trigger signal of the second output of pulse signal and controls Triggered Vacuum Switch
It is triggered along face afterflow.
Pulse-generating circuit makes storage capacitor through pulse transformer to triggering creeping discharge by opening thyristor.It is touching
To triggering creeping discharge after hair surface breakdown, when improving the quantity of initial plasma and increase triggering along the conducting in face
Between.
Further, the optical signal generation circuit includes: the first trigger U1, the second trigger U2, third triggering
Device U3, the first NOT gate U4, the second NOT gate U5, the first fibre optical transmission head D1, the second fibre optical transmission head D2, closure switch S1, electricity R1、
Resistance R2, capacitor C1, resistance R3, capacitor C2, resistance R4, capacitor C3, resistance R5With resistance R6；The power supply of the first trigger U1
Hold VCCIt is connected to 5V voltage, the end CLR of the first trigger U1 is connected to 5V voltage, the rising edge of the first trigger U1
Input terminal 1A is connected to 5V voltage by closure switch S1, and the failing edge input terminal 1B of the first trigger U1 passes through resistance R1
It is connected to 5V voltage, the failing edge input terminal 1B of the first trigger U1 is also grounded；The first trigger U1's is external fixed
When resistance mouth 1Rext/CextPass through resistance R2It is connected to 5V voltage, the external timing capacitor mouth 1C of the first trigger U1extIt is logical
Cross capacitor C1It is connected to 5V voltage；The power end V of the second trigger U2CCIt is connected to 5V voltage, the second trigger U1
The end CLR be connected to 5V voltage, the rising edge input terminal 1A of the second trigger U2 is connected to the first trigger U1's
The failing edge input terminal 1B of positive output end 1Q, the second trigger U2 are grounded；The external timing electricity of the second trigger U2
Hinder mouth 1Rext/CextPass through resistance R3It is connected to 5V voltage, the external timing capacitor mouth 1C of the second trigger U2extPass through electricity
Hold C2It is connected to 5V voltage；The power end V of the third trigger U3CCIt is connected to 5V voltage, the CLR of the third trigger U3
End is connected to 5V voltage, and the rising edge input terminal 1A of the third trigger U3 is connected to 5V voltage, the third trigger U3
Failing edge input terminal 1B be connected to the positive output end 1Q of the first trigger U1；The external timing resistance of the third trigger U3
Mouth 1Rext/CextPass through resistance R4It is connected to 5V voltage, the external timing capacitor mouth 1C of the third trigger U3extPass through capacitor
C3It is connected to 5V voltage；The input terminal of the first NOT gate U4 is connected to the positive output end 1Q of the second trigger U2, and described first
The cathode of fibre optical transmission head D1 is connected to the output end of the first NOT gate U4, and the anode of the first fibre optical transmission head D1 passes through
The resistance R5 is connected to 5V voltage；The input terminal of the second NOT gate U5 is connected to the positive output end 1Q of third trigger U3,
The cathode of the second fibre optical transmission head D2 is connected to the output end of the second NOT gate U5, the second fibre optical transmission head D2's
Anode is connected to 5V voltage by the resistance R6.
Further, the thyristor gating circuit includes: that fiber-optic signal receives head U6, metal-oxide-semiconductor Q, metal-oxide-semiconductor driving core
Piece U7, inductance L1, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15、
Capacitor C4, capacitor C5, light emitting diode D3, diode D4, diode D5, diode D6, diode D8, diode D9, two pole of pressure stabilizing
Pipe D7With metal-oxide-semiconductor Q pulse transformer T1；The capacitor C4One end pass through the resistance R that is sequentially connected in series7With inductance L1Connection
To 15V voltage, the capacitor C4The other end ground connection；Light emitting diode D3Anode pass through resistance R8It is connected to the capacitor C4
One end, light emitting diode D3Minus earth；One end of the armature winding of metal-oxide-semiconductor Q pulse transformer T1 passes through resistance R9Connection
To the capacitor C4One end, the other end of the armature winding of metal-oxide-semiconductor Q pulse transformer T1 is connected to the drain electrode of metal-oxide-semiconductor Q；Two
Pole pipe D4Cathode be connected to T1 armature winding one end, diode D4Anode pass through resistance R10It is connected to the leakage of metal-oxide-semiconductor Q
Pole；The source electrode of metal-oxide-semiconductor Q is grounded, and the grid of metal-oxide-semiconductor Q passes through resistance R13It is connected to the output end OUT of U7；Zener diode D7's
Cathode is connected to the grid of metal-oxide-semiconductor Q, zener diode D7Plus earth；The resistance R12With the zener diode D7And
Connection connection；The diode D5Cathode be connected to T1 secondary windings one end, the diode D5Anode be connected to T1's
The other end of secondary windings, the diode D6Anode be connected to T1 secondary windings one end, the resistance R11One end
With the diode D6Cathode connection after output head anode as the thyristor gating circuit；The resistance R11It is another
End is connected to the other end of the secondary windings of T1；The power end Vcc that fiber-optic signal receives head U6 is connected to 5V voltage, fiber-optic signal
Receive the ground terminal GND ground connection of head U6；Capacitor C5Be connected to the fiber-optic signal receive head U6 power end Vcc and ground terminal GND it
Between；Diode D8With diode D9It is sequentially connected in series between 5V voltage and ground, diode D8With diode D9Series connection
The end DATA for receiving head U6 with fiber-optic signal is held to connect；Resistance R15It is connected to 5V voltage and fiber-optic signal receives the end DATA of head U6
Between；The power end of metal-oxide-semiconductor driving chip U7 connects 15V voltage, and the input terminal IN of metal-oxide-semiconductor driving chip U7 is connected to optical fiber letter
Number receive head U6 the end DATA, metal-oxide-semiconductor driving chip U7 ground terminal ground connection；Resistance R14It is connected to 15V voltage and the output end of U7
Between OUT.
Further, the pulse-generating circuit includes: thyristor SCR1, capacitor C7, diode D10And pulse transforming
Device T2；The thyristor SCR1Anode as the pulse-generating circuit input anode, the thyristor SCR1Cathode connect
It is connected to pulse transformer T2Armature winding one end, the capacitor C7One end be connected to the thyristor SCR1Anode, two
Pole pipe D10Cathode be connected to pulse transformer T2Armature winding one end, the capacitor C7The other end, diode D10's
Anode and pulse transformer T2Armature winding the other end connection after be used as the pulse-generating circuit input cathode；It is described
Pulse transformer T2Output end of the secondary windings as the pulse-generating circuit.
Further, active freewheeling circuit includes: diode D11, diode D12, diode D13, diode D14, resistance
R16, resistance R17, resistance R18, resistance R19, resistance R20, diode D15, capacitor C8, thyristor SCR2, diode D15, resistance R21With
Transformer T3；Diode D11Input anode of the cathode as the active freewheeling circuit, diode D11Anode by according to
Secondary concatenated diode D12, diode D13With diode D14It is connected to thyristor SCR2Cathode, diode D15Cathode connection
To thyristor SCR2Anode, diode D15Anode pass through resistance R21It is connected to transformer T3Armature winding one end；Electricity
Hinder R16With diode D11It is connected in parallel；Resistance R17With diode D12It is connected in parallel；Resistance R18With diode D13It is connected in parallel；Electricity
Hinder R19With diode D14It is connected in parallel；Resistance R20One end be connected to thyristor SCR2Cathode, diode D15Cathode connection
To thyristor SCR2Cathode, capacitor C8One end be connected to diode D15Cathode；Resistance R20The other end, diode D15's
Anode and capacitor C8The other end be connected to transformer T3Armature winding the other end；Transformer T3Secondary windings conduct
The output end of the active freewheeling circuit.
Multiple diodes and thyristor guarantee that capacitor electric discharge is reliable and one-way flow.Multiple resistance and diode are simultaneously
Connection uniformly avoids damaging to guarantee that diode divides.The two-way trigger signal of sending has the stable time difference, so that pulse produces
The pulse of raw circuit and the pulse arrival triggering of active freewheeling circuit are adjustable along the face time, prevent overvoltage from damaging semiconductor device
Part.When circuit vibrates, freewheeling diode release is reversed current through.Generating stabilization using monostable flipflop can
The pulse with certain time difference adjusted.Optical signal by being converted to the trigger signal of metal-oxide-semiconductor, the voltage signal of thyristor by
Bigger capacitor provides, and improves the load-carrying ability of output.
The present invention provides a kind of trigger sources for being capable of providing big trigger energy, guarantee Triggered Vacuum Switch in positive polarity work
It is absolutely reliable open-minded when making, success rate, which is triggered, under negative polarity operating mode is effectively promoted, the touching of active afterflow trigger source
Power generation pressure may be up to 15kV to 20kV, and for trigger voltage up to 680A, turn-on time when triggering has no chance afterflow triggering compared to other
Source working characteristics is significantly improved, and its trigger device has accomplished miniaturization, can cooperate extensively with Triggered Vacuum Switch
It uses.
Detailed description of the invention
Fig. 1 is provided in an embodiment of the present invention and the matching used active trigger device of Triggered Vacuum Switch principle frame
Figure.
Fig. 2 be it is provided in an embodiment of the present invention with the matching used active trigger device of Triggered Vacuum Switch in optical signal produce
The physical circuit schematic diagram of raw circuit.
Fig. 3 be it is provided in an embodiment of the present invention with the matching used active trigger device of Triggered Vacuum Switch in thyristor touch
The physical circuit schematic diagram of Power Generation Road.
Fig. 4 be it is provided in an embodiment of the present invention with the matching used active trigger device of Triggered Vacuum Switch in pulse generate
The physical circuit figure of circuit and active freewheeling circuit.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In order to which further description is provided in an embodiment of the present invention and the matching used active triggering of Triggered Vacuum Switch
Device, now in conjunction with drawings and concrete examples, details are as follows:
Fig. 1 shows the provided in an embodiment of the present invention and matching used active trigger device of Triggered Vacuum Switch principle
Block diagram, for ease of description, only parts related to embodiments of the present invention are shown, and details are as follows:
It include: optical signal generation circuit, IGBT group electricity with the matching used active trigger device of Triggered Vacuum Switch
Road, pulse-generating circuit and active freewheeling circuit；The input terminal of thyristor gating circuit is connected to the defeated of optical signal generation circuit
Outlet, thyristor gating circuit successively export the first pulse signal and the second pulse signal, the input of pulse-generating circuit respectively
The input terminal of end and active freewheeling circuit is connected to the output end of thyristor gating circuit, the output end of pulse-generating circuit and
The output end of active freewheeling circuit is used to the input terminal of connection Triggered Vacuum Switch, and pulse-generating circuit is believed according to the first pulse
Number output and controls Triggered Vacuum Switch breakdown triggering along face at the first trigger signal, and source freewheeling circuit is defeated according to the second pulse signal
Second trigger signal and to control Triggered Vacuum Switch triggered along face afterflow out.
Optical signal generation circuit generates optical signal, is transmitted to two sets of thyristor gating circuits, two sets of thyristors by optical fiber
Trigger circuit successively generates pulse, and pulse-generating circuit triggers first, and breakdown triggering is along face, and then active continuous current circuit triggers,
It is triggered along face afterflow.The two-way trigger signal that optical signal circuit issues has the stable time difference, so that pulse-generating circuit
Pulse and active freewheeling circuit pulse reach triggering it is adjustable along the face time, prevent overvoltage damage semiconductor devices.
Optical signal generation circuit is used to for button signal being converted into optical signal, and optical signal processing circuit is for receiving signal simultaneously
The electric pulse generated by a small margin opens thyristor.Optical signal generation circuit is stablized adjustable using monostable flipflop generation
Pulse with certain time difference.Optical signal is by being converted to the trigger signal of metal-oxide-semiconductor, and the voltage signal of thyristor is by bigger
Capacitor provides, and improves the load-carrying ability of output.Fig. 2 shows the physical circuits of optical signal generation circuit, comprising: the first touching
Send out device U1, the second trigger U2, third trigger U3, the first NOT gate U4, the second NOT gate U5, the first fibre optical transmission head D1, second
Fibre optical transmission head D2, closure switch S1, electricity R1, resistance R2, capacitor C1, resistance R3, capacitor C2, resistance R4, capacitor C3, resistance R5, electricity
Hinder R6；
The power end VCC of first trigger U1 is connected to 5V voltage, and the end CLR of the first trigger U1 is connected to 5V voltage,
The rising edge input terminal 1A of first trigger U1 is connected to 5V voltage by closure switch S1, and the failing edge of the first trigger U1 is defeated
Enter to hold 1B to pass through resistance R1It is connected to 5V voltage, the failing edge input terminal 1B of the first trigger U1 is also grounded；First trigger U1
External timing resistance mouth 1Rext/CextPass through resistance R2It is connected to 5V voltage, the external timing capacitor mouth of the first trigger U1
1CextPass through capacitor C1It is connected to 5V voltage；
The power end VCC of second trigger U2 is connected to 5V voltage, and the end CLR of the second trigger U1 is connected to 5V voltage,
The rising edge input terminal 1A of second trigger U2 is connected to the positive output end 1Q of the first trigger U1, the decline of the second trigger U2
It is grounded along input terminal 1B；The external timing resistance mouth 1R of second trigger U2ext/CextPass through resistance R3It is connected to 5V voltage, the
The external timing capacitor mouth 1C of two trigger U2extPass through capacitor C2It is connected to 5V voltage；
The power end VCC of third trigger U3 is connected to 5V voltage, and the end CLR of third trigger U3 is connected to 5V voltage,
The rising edge input terminal 1A of third trigger U3 is connected to 5V voltage, and the failing edge input terminal 1B of third trigger U3 is connected to
The positive output end 1Q of one trigger U1；The external timing resistance mouth 1R of third trigger U3ext/CextPass through resistance R4It is connected to 5V
Voltage, the external timing capacitor mouth 1C of third trigger U3extPass through capacitor C3It is connected to 5V voltage；
Wherein, the first trigger U1, the second trigger U2 and third trigger U3 can use monostable trigger chip,
The R being attached thereto respectively2And C1、R3And C2、R4And C3Product determine the temporary stable state duration of monostable flipflop.The signal of U1
Output end 1Q connects the failing edge input terminal 1B of rising edge the input terminal 1A and U3 of U2 simultaneously；The output of monostable trigger chip U1
The width decision of signal changes the time difference of optical signal generation circuit two paths of signals output, and the signal width is by changing R2Size
It is adjusted.The output signal of first NOT gate U4 and the second NOT gate U5 pass through the diode D of fibre optical transmission head1、D2With resistance R5、
R6It is connected to 5V power supply.In closure switch S1When U1 enter a rising pulses, U1 exports a relatively narrow about 2 μ s pulses,
The rising edge of the pulse triggers U2, and failing edge triggers U3, and U2, U3 export a high level pulse, and high level pulse passes through NOT gate
Chip U4, U5 become low level pulse, so that LED lighting generates optical signal.
There are two sets of thyristors in the provided in an embodiment of the present invention and matching used active trigger device of Triggered Vacuum Switch
Trigger circuit, received optical signal are respectively from D1And D2, the principle of the circuit is that fiber optic receiver receives signal, conversion
Electric signal generates pulse by driving metal-oxide-semiconductor, achievees the purpose that trigger thyristor through pulse transformer output.Wherein, thyristor
The physical circuit of trigger circuit is as shown in Figure 3, comprising: fiber-optic signal receives head U6, metal-oxide-semiconductor driving chip U7, inductance L1, resistance
R7、R8、R9、R10、R11、R12、R13、R14、R15, capacitor C4、C5, light emitting diode D3, diode D4、D5、D6、D8、D9Two pole of pressure stabilizing
Pipe D7, metal-oxide-semiconductor Q pulse transformer T1.
The power supply of 15V is connected to capacitor C by current-limiting inductance and resistance4One end, resistance R8It connects then with light emitting diode
And in capacitor C4Both ends；C4By a resistance R9It is connected to pulse transformer T1, then by a metal-oxide-semiconductor Q ground connection, two poles
Pipe D4With resistance R10After series connection and in transformer T1Input terminal；Zener diode D7With resistance R12It is connected in parallel on the grid of metal-oxide-semiconductor
Between pole and source electrode；Diode D5It is connected in parallel on the output end of transformer, diode D6It is connected to transformer pair side, D6The other end and electricity
Hinder R11It is connected, R11The other end be connected with the other end of transformer；The signal output end of U6 passes through diode D8、D9It is connected to 5V
In ground potential；U7 is metal-oxide-semiconductor driving chip, and input terminal passes through pull-up resistor R15It is connected to 5V power supply, output end is by pull-up
Resistance R14It is connected to 15V power supply, by current-limiting resistance R13It is connected to the grid of metal-oxide-semiconductor Q.
The power supply of 15V is connected to capacitor C by current-limiting inductance and resistance4One end, resistance R8It connects then with light emitting diode
And in capacitor C4Both ends；C4Trigger pulse after being fully charged for generation provides energy, resistance R8It is larger, to C4Influence can
To disregard, D3The indicator light normally powered on for circuit.C4By a resistance R9It is connected to pulse transformer T1, then pass through one
A metal-oxide-semiconductor Q ground connection, diode D4With resistance R10After series connection and in transformer T1Input terminal；D in circuit4And R10Work
With being to play the role of reversed afterflow when circuit vibrates, metal-oxide-semiconductor Q is that the circuit that make pulse generates generates touching
Send out the pulse of pulse.Zener diode D7With resistance R12It is connected in parallel between the grid of metal-oxide-semiconductor and source electrode；D7Effect be to maintain grid
Voltage between pole and source electrode prevents from damaging metal-oxide-semiconductor, resistance R12Effect be through-flow to prevent D7Damage.Diode D5It is in parallel
In the output end of transformer, diode D6It is connected to transformer pair side, D6The other end and resistance R11It is connected, R11The other end and transformation
The other end of device is connected；D5Effect be, D reversely through-flow in oscillation circuit6Effect be guarantee voltage pulse output polarity
It is positive, R11Effect be to play the role of cocurrent flow under no-load condition.
U6 is that fiber-optic signal receives head, between its power supply and ground electrode and has a capacitor C5；It is to improve light that it, which is acted on,
The power supply capacity of power supply when fibre receives head work.The signal output end of U6 passes through diode D8、D9It is connected on 5V and ground potential；
Effect be the output signal voltage clamper by fiber optic receiver between 0V and 5V.U7 is metal-oxide-semiconductor driving chip, and input terminal is logical
Cross pull-up resistor R15It is connected to 5V power supply, output end passes through pull-up resistor R14It is connected to 15V power supply, by current-limiting resistance R13Even
It is connected to the grid of metal-oxide-semiconductor Q.
After optical signal generates circuit sending signal, U6 exports high level, through driving chip U7 metal-oxide-semiconductor Q is connected,
Capacitor C4 pulse transformer electric discharge, to generate thyristor triggering impulse in pair side.
Fig. 4 is the pulse-generating circuit of the present apparatus and the circuit diagram of active continuous current circuit, LOOP in figure1Electricity is generated for pulse
Road, LOOP2For active continuous current circuit.Pulse-generating circuit makes storage capacitor through pulse transformer to touching by opening thyristor
Send out creeping discharge.Pulse-generating circuit includes: thyristor SCR1, capacitor C7, diode D10With pulse transformer T2, capacitor C7Through
Cross thyristor SCR1It is connected to pulse transformer T2Both ends, T2Original side parallel diode D10, pair side is connected to Triggered Vacuum Switch
Trigger electrode both ends, wherein thyristor SCR1Gate pole be connected to thyristor gating circuit output end "+" pole, cathode connects
In the "-" pole of thyristor gating circuit, matched thyristor gating circuit connects fibre optical transmission head D1；Capacitor C7For breakdown
IGBT group provides primary power, thyristor SCR along face1Closure generates former square pulse, diode D10It is vibrated in circuit
When, guarantees reversed through-flow, prevents capacitor C7With transformer T2Inductance resonance.
The active afterflow capacitor to charge in active freewheeling circuit after triggering surface breakdown to triggering creeping discharge, with improve
The quantity of initial plasma and increase trigger the turn-on time along face.Active continuous current circuit includes: diode D11, diode
D12, diode D13, diode D14, resistance R16, resistance R17, resistance R18, resistance R19, diode D15, capacitor C8, thyristor
SCR2, diode D15, resistance R21, transformer T3, wherein transformer T3Original side connects alternating current, and pair side passes through resistance R21And diode
D15It is connected to afterflow capacitor C8, diode D15With resistance R20After in parallel again with thyristor SCR2Series connection, later again by they with
Capacitor C8Parallel connection, diode D11、D12、D13、D14Distinguish parallel resistance R in both ends16、R17、R18、R19, triggered vacuum of being connected
The triggering of switch is connected to R along face20Both ends, thyristor SCR2Matching used thyristor gating circuit connects emitting head D2, brilliant lock
The gate pole of pipe is connected to the "+" pole of the output end of thyristor gating circuit, and cathode is connected to the "-" pole of thyristor gating circuit；
T3There is provided city's electric boost to the charging voltage of afterflow capacitor, R21For charging current current limliting, D15Guarantee electric current one-way flow, C8For storage
Energy capacitor, thyristor SCR2Closure starts afterflow, D15Effect be to provide capacitor reversely through-flow circuit, prevent reverse current its
By triggering along face, D11、D12、D13、D14Effect be guarantee electric current one-way flow, be to mention with the purpose of multilevel diode
The voltage endurance capability of high diode, R16、R17、R18、R19、R20Effect be guarantee diode between voltage's distribiuting it is uniform.It is active continuous
Multiple diodes and a thyristor in current circuit can guarantee that capacitor electric discharge is reliable and one-way flow.Active freewheeling circuit
In multiple resistance and diodes in parallel to guarantee that diode partial pressure uniformly avoids damaging.It is active continuous based on Triggered Vacuum Switch
Trigger device is flowed, when circuit vibrates, reverses current through freewheeling diode release.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (4)
1. a kind of and matching used active trigger device of Triggered Vacuum Switch characterized by comprising optical signal generates electricity
Road, thyristor gating circuit, pulse-generating circuit and active freewheeling circuit；
The input terminal of the thyristor gating circuit is connected to the output end of optical signal generation circuit, the thyristor gating circuit
Successively export the first pulse signal and the second pulse signal respectively, the input terminal of pulse-generating circuit and active freewheeling circuit it is defeated
Enter the output end that end is connected to thyristor gating circuit, the output end of the output end of pulse-generating circuit and active freewheeling circuit
It is used to the input terminal of connection Triggered Vacuum Switch, the pulse-generating circuit is touched according to first output of pulse signal first
It signals and controls Triggered Vacuum Switch breakdown triggering along face, the active freewheeling circuit is according to second output of pulse signal
Second trigger signal and to control Triggered Vacuum Switch triggered along face afterflow；
The active freewheeling circuit includes: diode D11, diode D12, diode D13, diode D14, resistance R16, resistance R17、
Resistance R18, resistance R19, resistance R20, diode D15, capacitor C8, thyristor SCR2, diode D16, resistance R21With transformer T3；
Diode D11Input anode of the cathode as the active freewheeling circuit, diode D11Anode be connected to diode
D12Cathode, diode D12Anode be connected to diode D13Cathode, diode D13Anode be connected to diode D14's
Cathode, diode D14Anode be connected to thyristor SCR2Cathode, diode D16Cathode be connected to thyristor SCR2Sun
Pole, diode D16Anode pass through resistance R21It is connected to transformer T3Armature winding one end；
Resistance R16With diode D11It is connected in parallel；Resistance R17With diode D12It is connected in parallel；Resistance R18With diode D13It is in parallel
Connection；Resistance R19With diode D14It is connected in parallel；
Resistance R20One end be connected to thyristor SCR2Cathode, diode D15Cathode be connected to thyristor SCR2Cathode,
Capacitor C8One end be connected to diode D16Cathode；Resistance R20The other end, diode D15Anode and capacitor C8It is another
End is connected to transformer T3Armature winding the other end；Transformer T3Secondary windings as the active freewheeling circuit
Output end.
2. active trigger device as described in claim 1, which is characterized in that the optical signal generation circuit includes: the first touching
Send out device U1, the second trigger U2, third trigger U3, the first NOT gate U4, the second NOT gate U5, the first fibre optical transmission head D1, second
Fibre optical transmission head D2, closure switch S1, electricity R1, resistance R2, capacitor C1, resistance R3, capacitor C2, resistance R4, capacitor C3, resistance R5With
Resistance R6；
The power end V of the first trigger U1CCIt is connected to 5V voltage, the end CLR of the first trigger U1 is connected to 5V electricity
Pressure, the rising edge input terminal 1A of the first trigger U1 are connected to 5V voltage, first trigger by closure switch S1
The failing edge input terminal 1B of U1 passes through resistance R1It is connected to 5V voltage, the failing edge input terminal 1B of the first trigger U1 also connects
Ground；The external timing resistance mouth 1R of the first trigger U1ext/CextPass through resistance R2It is connected to 5V voltage, first touching
Send out the external timing capacitor mouth 1C of device U1extPass through capacitor C1It is connected to 5V voltage；
The power end V of the second trigger U2CCIt is connected to 5V voltage, the end CLR of the second trigger U1 is connected to 5V electricity
Pressure, the rising edge input terminal 1A of the second trigger U2 are connected to the positive output end 1Q of the first trigger U1, and described the
The failing edge input terminal 1B of two trigger U2 is grounded；The external timing resistance mouth 1R of the second trigger U2ext/CextPass through electricity
Hinder R3It is connected to 5V voltage, the external timing capacitor mouth 1C of the second trigger U2extPass through capacitor C2It is connected to 5V voltage；
The power end V of the third trigger U3CCIt is connected to 5V voltage, the end CLR of the third trigger U3 is connected to 5V electricity
Pressure, the rising edge input terminal 1A of the third trigger U3 are connected to 5V voltage, the failing edge input of the third trigger U3
End 1B is connected to the positive output end 1Q of the first trigger U1；The external timing resistance mouth 1R of the third trigger U3ext/CextIt is logical
Cross resistance R4It is connected to 5V voltage, the external timing capacitor mouth 1C of the third trigger U3extPass through capacitor C3It is connected to 5V electricity
Pressure；
The input terminal of the first NOT gate U4 is connected to the positive output end 1Q, the first fibre optical transmission head D1 of the second trigger U2
Cathode be connected to the output end of the first NOT gate U4, the anode of the first fibre optical transmission head D1 passes through the resistance R5 and connects
It is connected to 5V voltage；
The input terminal of the second NOT gate U5 is connected to the positive output end 1Q, the second fibre optical transmission head D2 of third trigger U3
Cathode be connected to the output end of the second NOT gate U5, the anode of the second fibre optical transmission head D2 passes through the resistance R6 and connects
It is connected to 5V voltage.
3. active trigger device as described in claim 1, which is characterized in that the thyristor gating circuit includes: optical fiber letter
Number receive head U6, metal-oxide-semiconductor Q, metal-oxide-semiconductor driving chip U7, inductance L1, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, electricity
Hinder R12, resistance R13, resistance R14, resistance R15, capacitor C4, capacitor C5, light emitting diode D3, diode D4, diode D5, diode
D6, diode D8, diode D9, zener diode D7With pulse transformer T1；
The capacitor C4One end pass through the resistance R that is sequentially connected in series7With inductance L1It is connected to 15V voltage, the capacitor C4's
Other end ground connection；Light emitting diode D3Anode pass through resistance R8It is connected to the capacitor C4One end, light emitting diode D3Yin
Pole ground connection；
One end of the armature winding of pulse transformer T1 passes through resistance R9It is connected to the capacitor C4One end, pulse transformer T1
The other end of armature winding be connected to the drain electrode of metal-oxide-semiconductor Q；
Diode D4Cathode be connected to T1 armature winding one end, diode D4Anode pass through resistance R10It is connected to metal-oxide-semiconductor
The drain electrode of Q；The source electrode of metal-oxide-semiconductor Q is grounded, and the grid of metal-oxide-semiconductor Q passes through resistance R13It is connected to the output end OUT of U7；
Zener diode D7Cathode be connected to the grid of metal-oxide-semiconductor Q, zener diode D7Plus earth；The resistance R12With institute
State zener diode D7It is connected in parallel；
The diode D5Cathode be connected to T1 secondary windings one end, the diode D5Anode be connected to T1 time
The other end of grade winding, the diode D6Anode be connected to T1 secondary windings one end, the resistance R11One end with
The diode D6Cathode connection after output head anode as the thyristor gating circuit；The resistance R11The other end
It is connected to the other end of the secondary windings of T1；
The power end Vcc that fiber-optic signal receives head U6 is connected to 5V voltage, and fiber-optic signal receives the ground terminal GND ground connection of head U6；Electricity
Hold C5The fiber-optic signal is connected to receive between the power end Vcc and ground terminal GND of head U6；Diode D8Cathode connect 5V voltage,
Diode D8Anode connect diode D9Cathode, diode D9Plus earth, diode D8With diode D9Series connection connect
It connects end and is connect with the end DATA that fiber-optic signal receives head U6；Resistance R15It is connected to 5V voltage and fiber-optic signal receives the DATA of head U6
Between end；
The power end of metal-oxide-semiconductor driving chip U7 connects 15V voltage, and the input terminal IN of metal-oxide-semiconductor driving chip U7 is connected to optical fiber letter
Number receive head U6 the end DATA, metal-oxide-semiconductor driving chip U7 ground terminal ground connection；Resistance R14It is connected to 15V voltage and the output end of U7
Between OUT.
4. active trigger device as described in claim 1, which is characterized in that the pulse-generating circuit includes: thyristor
SCR1, capacitor C7, diode D10With pulse transformer T2；
The thyristor SCR1Anode as the pulse-generating circuit input anode, the thyristor SCR1Cathode connect
It is connected to pulse transformer T2Armature winding one end, the capacitor C7One end be connected to the thyristor SCR1Anode, two
Pole pipe D10Cathode be connected to pulse transformer T2Armature winding one end, the capacitor C7The other end, diode D10's
Anode and pulse transformer T2Armature winding the other end connection after be used as the pulse-generating circuit input cathode；It is described
Pulse transformer T2Output end of the secondary windings as the pulse-generating circuit.
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| CN201610866449.5A CN106301306B (en) | 2016-09-30 | 2016-09-30 | A kind of and matching used active trigger device of Triggered Vacuum Switch |
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| CN201610866449.5A CN106301306B (en) | 2016-09-30 | 2016-09-30 | A kind of and matching used active trigger device of Triggered Vacuum Switch |
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| CN106301306B true CN106301306B (en) | 2019-08-09 |
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| CN110351648A (en) * | 2019-07-31 | 2019-10-18 | 广州笙达电器有限公司 | The detection method of signal deteching circuit and SPDIF fiber-optic signal |
| CN111146967B (en) * | 2019-12-25 | 2023-08-15 | 兰州空间技术物理研究所 | High-reliability edge surface breakdown discharge trigger type pulse arc striking power supply |
| CN111884638A (en) * | 2020-07-07 | 2020-11-03 | 大力(武汉)环保科技有限公司 | Thyristor interlocking control circuit |
| CN113224930A (en) * | 2021-05-31 | 2021-08-06 | 湖南科瑞变流电气股份有限公司 | Optical pulse power amplifier isolation circuit |
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| CN103716027A (en) * | 2013-12-31 | 2014-04-09 | 深圳市英威腾电气股份有限公司 | Controllable silicon drive circuit |
| CN204243742U (en) * | 2014-12-17 | 2015-04-01 | 国家电网公司 | A kind of series resonant-type fault current limiter |
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