CN208489803U - A kind of high-voltage great-current solid electron discharge modular power source - Google Patents
A kind of high-voltage great-current solid electron discharge modular power source Download PDFInfo
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- CN208489803U CN208489803U CN201820362385.XU CN201820362385U CN208489803U CN 208489803 U CN208489803 U CN 208489803U CN 201820362385 U CN201820362385 U CN 201820362385U CN 208489803 U CN208489803 U CN 208489803U
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- power source
- thyristor
- discharge switch
- modular power
- power supply
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Abstract
The utility model discloses a kind of high-voltage great-current solid electron discharge modular power sources, including PLC controller: receiving man-machine interface control parameter, and controls DC power supply and charge to thyristor discharge switch modular power source；DC power supply: it charges to thyristor discharge switch modular power source；Thyristor discharge switch modular power source: being made of multiple groups thyristor discharge switch, realizes pulsed discharge；The PLC controller is connect with DC power supply and thyristor discharge switch modular power source respectively.In this programme, it is uniformly controlled by multiple groups thyristor discharge switch of the PLC controller to thyristor discharge switch modular power source, realize that multiple groups pulse output signals are synchronous, using thyristor discharge switch, solve the transient state shock problem generated when thyristor discharge switch modular power source energy-storage capacitor switching, energy-storage capacitor investment no-flashy-flow, excision no-voltage, the Arc-free quick compensation function of switching can be achieved, improve thyristor discharge switch modular power source job stability and service life.
Description
Technical field
The utility model relates to modular power source technical field more particularly to a kind of high-voltage great-current solid electron discharge modules
Power supply.
Background technique
In high-power high-current pulse power system, common fling-cut switch has: A.C. contactor, capacitor switching are dedicated to be connect
Tentaculum etc..
Wherein, A.C. contactor has many advantages, such as that price is low, versatile, but can then generate when being used for capacitor switching
Very big surge and pulse surge is easy to cause insulation breakdown or probe of contactor scaling loss, contactor is caused to damage.Capacitor is thrown
Cutting Special contactor is to have installed current-limiting impedance device additional on the main contact of common A.C. contactor, and this improve is thrown in capacitor
It can play a role when cutting infrequently, but its suppression capacitor shoves that the effect is unsatisfactory, when electric current is larger, current limliting
Resistance and main contact are often burnt, and service life is shorter.
Summary of the invention
The purpose of this utility model is that: a kind of high-voltage great-current solid electron discharge modular power source is provided, capacitor is solved
The transient state shock problem generated when device switching realizes that energy-storage capacitor investment no-flashy-flow, excision no-voltage, switching are Arc-free fast
Fast compensation function improves thyristor discharge switch modular power source job stability and service life.
The technical solution adopted in the utility model is as follows:
A kind of high-voltage great-current solid electron discharge modular power source, comprising:
DC power supply: it charges to thyristor discharge switch modular power source；
Thyristor discharge switch modular power source: being made of multiple groups thyristor discharge switch, realizes pulsed discharge；
PLC controller: receiving man-machine interface control parameter, and controls DC power supply to thyristor discharge switch modular power source
Charging；
The PLC controller is connect with DC power supply and thyristor discharge switch modular power source respectively.
Further, the thyristor discharge switch includes energy-storage capacitor, connect with energy-storage capacitor and realize parallel connection
Two serial connection controllable silicon module groups of output.
Further, the energy-storage capacitor is in series by multiple electrolytic capacitors.
Further, the silicon controlled module in the silicon controlled module group is made of 4 high-power thyristor series average-voltages.
Further, the PLC controller is connect by synchronization signal trigger with the silicon controlled module.
Further, the synchronization signal trigger includes multiple Pulse Power Magnification isolation control circuits being arranged in series
Plate, the multiple groups double winding pulse transformer being connect with Pulse Power Magnification isolation control circuit plate.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
1, it in the utility model, is discharged by multiple groups thyristor of the PLC controller to thyristor discharge switch modular power source
Switch is uniformly controlled, and is realized that multiple groups pulse output signals are synchronous, is improved the stability of thyristor discharge switch modular power source.
2, in the utility model, by the way that multiple thyristor discharge switches are composed in parallel thyristor discharge switch modular power source
It can be realized to power large current pulse power supply system pulses control of discharge.
3, in the utility model, by using thyristor discharge switch, the modular power source energy storage of thyristor discharge switch is solved
The transient state shock problem generated when capacitor switching is, it can be achieved that energy-storage capacitor puts into no-flashy-flow, excision no-voltage, switching without electricity
The quick compensation function of arc improves thyristor discharge switch modular power source job stability and service life.
Detailed description of the invention
Fig. 1 is the utility model thyristor discharge switch modular power source triggering control block diagram；
Fig. 2 is the utility model thyristor discharge switch modular power source structural schematic diagram；
Fig. 3 is the utility model thyristor discharge switch structural schematic diagram；
Fig. 4 is the utility model silicon controlled module circuit diagram；
Fig. 5 is the utility model thyristor discharge switch modular power source trigger circuit connection schematic diagram；
Marked in the figure: 1- man-machine interface, 2-PLC controller, 3- DC power supply, 4- thyristor discharge switch modular power source,
5- Pulse Power Magnification isolation control circuit plate, 6- pulse transformer, 7- thyristor discharge switch, 8- silicon controlled module
Group, 9- energy-storage capacitor, 10- silicon controlled module, 11- electrolytic capacitor, 12- thin film capacitor.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
Embodiment 1
As shown in Figure 1, a kind of high-voltage great-current solid electron discharge modular power source, comprising:
DC power supply 3: it charges to thyristor discharge switch modular power source 4；
Thyristor discharge switch modular power source 4: being made of multiple groups thyristor discharge switch 7, realizes pulsed discharge；
As described in Figure 2, the thyristor discharge switch modular power source 4 is put by 3 groups of (unlimited 3 groups can be multiple groups) thyristors
Electric switch 7 forms.
PLC controller 2: 1 control parameter of man-machine interface is received, and controls DC power supply 3 to thyristor discharge switch module
Power supply 4 charges；
The PLC controller 1 is connect with DC power supply 3 and thyristor discharge switch modular power source 4 respectively.
Further, the thyristor discharge switch 7 includes energy-storage capacitor 9, connect and realized simultaneously with energy-storage capacitor 9
Join two serial connection controllable silicon module groups 8 of output.
In the present solution, parameter is arranged by man-machine interface 1, DC power supply 3 is controlled by S7-200SMARTPLC controller 2
Access, charge to 4 every groups of energy-storage capacitors of thyristor discharge switch modular power source 9, when reaching setup parameter value, disconnect straight
Connection between current circuit 3 and thyristor discharge switch 7, thyristor discharge switch modular power source 4 realize that Integral synchronous pulse is put
Electricity.
It can be realized by the way that multiple thyristor discharge switches 7 are composed in parallel thyristor discharge switch modular power source 4 to function
Rate large current pulse power supply system pulses control of discharge.
Unification is carried out by multiple groups thyristor discharge switch 7 of the PLC controller 2 to thyristor discharge switch modular power source 4
Control realizes that multiple groups pulse output signals are synchronous, improves the stability of thyristor discharge switch modular power source 4.
Embodiment 2
On the basis of embodiment 1, the energy-storage capacitor 9 is made of multiple 11 series average-voltages of electrolytic capacitor.
As shown in figure 3, energy-storage capacitor 9 uses 16 450V, the electrolytic capacitor 11 of 10000uf is in series, the storage
The thin film capacitor 12 of energy capacitor 9 and 2 3600V, 150uf are arranged in series, and the energy-storage capacitor 9 passes through DC power supply 3
It charges.
The energy-storage capacitor 9 carries out direct current supply to each serial connection controllable silicon module group 8, and each series connection can
8 parallel output of silicon module group is controlled, realizes pulsed discharge.
Further, the silicon controlled module 10 in the silicon controlled module group 8 is by 4 high-power thyristor series average-voltage structures
At.
As shown in figure 4,10 circuit connection of silicon controlled module is specific as follows: the energy-storage capacitor 9 respectively with four
Concatenated thyristor T1-T4 connection carries out direct current supply, and the thyristor T1-T4 distinguishes shunt capacitance Cb, Rb in both ends and presses
Resistance Rp.
Opened and reverse recovery charge difference since concatenated thyristor exists, open and turn off process in will appear wink
The distribution of state voltage is unbalanced.Therefore at the both ends thyristor T1-T4, difference shunt capacitance Cb, Rb form RbCb resistance capaciting absorpting circuit,
To absorb transient overvoltage, wherein resistance Rb is used to inhibit the discharge current of Cb when IGBT group.
Consider from inhibiting to open discharge current, it is desirable to which Rb is larger, but when Rb is larger, charging current can generate higher on Rb
Voltage value, make thyristor by transient overvoltage, therefore the selection of Rb will comprehensively consider these two aspects factor.
Repetitive peak reverse voltage: VRRM≥VCMKAU/KUnσ
In formula: VRRMFor charging capacitor ceiling voltage, VCM=7kV；KAUFor redundancy, KAU=1.3；KUTo press coefficient,
KU=O.8；nσFor Thyristors in series quantity, nσ=4.
V can be obtainedRRM=2.85kV.
Domestic KK-5000A/3500V type thyristor is selected according to technical parameter.
Electric voltage equalization when being blocked forward or backwards to be in thyristor, the difference equal piezoelectricity in parallel at each thyristor both ends
Rp is hindered, to obtain preferable steady-state pressure, Rp leakage current should be greater than the leakage current of series thyristor, and the size of Rp depends on string
Join the difference of thyristor leakage current value and Rp leakage current.
In formula: VRRMFor specified repetitive peak voltage, VRRM=2.85kV；IRRMIt is V for specified repetitive peak voltageRRMWhen
Leakage current.
Rp >=9.7K Ω can be obtained.
When series thyristor is triggered by force using gate pole, shutdown overvoltage caused by reverse recovery charge difference becomes transient state
The main problem pressed.Then maximum shutdown overvoltage (unit V) that series thyristor is born are as follows:
ΔUMAX=Δ QMAX/Cb
ΔQMAXThe maximum difference of reverse recovery charge between series thyristor；Cb is the capacitance of transient state equalizing capacitor,
ΔQMAXFor 1100-1200, Δ UMAXValue is up to 3500V, optional 3000V, calculates desirable Cb=0.33Uf, and Cb pressure resistance is
8Kv, therefore can choose Rb=20 Ω.
Embodiment 3
On the basis of embodiment 1, the PLC controller 2 passes through synchronization signal trigger and the silicon controlled module 10
Connection.
Further, the synchronization signal trigger includes multiple Pulse Power Magnification isolation control circuits being arranged in series
Plate 5, the multiple groups double winding pulse transformer 6 being connect with Pulse Power Magnification isolation control circuit plate 5.
As shown in figure 5, control uses s7-200smartPLC controller 2, it is defeated using the CPU high-speed pulse of PLC controller 2
Width determines the switch triggering time out, and 5 input terminal of muti-piece Pulse Power Magnification isolation control circuit plate is connected, access PLC control
Multiple groups output pulse signal then can be achieved in this way and synchronize for 2 pulse output end mouth of device and 3 cathode of DC power supply processed, each pulse function
The output end of rate Amplification and insulation control circuit board 5 accesses 46 primary sides of double winding pulse transformer, the double winding driving
Silicon controlled module 10 is accessed on the secondary side of pulse transformer 6, i.e. one block of Pulse Power Magnification isolation control circuit plate 5 controls 8 controllably
Silicon module 10 realizes the synchronously control to silicon controlled module 10.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (6)
1. a kind of high-voltage great-current solid electron discharge modular power source characterized by comprising
DC power supply (3): it charges to thyristor discharge switch modular power source (4)；
Thyristor discharge switch modular power source (4): being made of multiple groups thyristor discharge switch (7), realizes pulsed discharge；
PLC controller (2): man-machine interface (1) control parameter is received, and controls DC power supply (3) to thyristor discharge switch mould
Block power supply (4) charging；
The PLC controller (2) connect with DC power supply (3) and thyristor discharge switch modular power source (4) respectively.
2. a kind of high-voltage great-current solid electron discharge modular power source according to claim 1, it is characterised in that: the crystalline substance lock
Tube discharge switch (7) includes energy-storage capacitor (9), connect with energy-storage capacitor (9) and realizes that two series connection of parallel output can
It controls silicon module group (8).
3. a kind of high-voltage great-current solid electron discharge modular power source according to claim 2, it is characterised in that: the energy storage
Capacitor (9) is in series by multiple electrolytic capacitors (11).
4. a kind of high-voltage great-current solid electron discharge modular power source according to claim 2, it is characterised in that: described controllable
Silicon controlled module (10) in silicon module group (8) is made of 4 high-power thyristor series average-voltages.
5. a kind of high-voltage great-current solid electron discharge modular power source according to claim 4, it is characterised in that: the PLC
Controller (2) is connect by synchronization signal trigger with the silicon controlled module (10).
6. a kind of high-voltage great-current solid electron discharge modular power source according to claim 5, it is characterised in that: the synchronization
Signal trigger includes multiple Pulse Power Magnification isolation control circuit plates (5) being arranged in series, is isolated with Pulse Power Magnification
The multiple groups double winding pulse transformer (6) of control circuit board (5) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820362385.XU CN208489803U (en) | 2018-03-16 | 2018-03-16 | A kind of high-voltage great-current solid electron discharge modular power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820362385.XU CN208489803U (en) | 2018-03-16 | 2018-03-16 | A kind of high-voltage great-current solid electron discharge modular power source |
Publications (1)
| Publication Number | Publication Date |
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| CN208489803U true CN208489803U (en) | 2019-02-12 |
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| CN201820362385.XU Active CN208489803U (en) | 2018-03-16 | 2018-03-16 | A kind of high-voltage great-current solid electron discharge modular power source |
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2018
- 2018-03-16 CN CN201820362385.XU patent/CN208489803U/en active Active
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