CN108809085A - A kind of multistage inductive energy storage type pulse power and method of supplying power to - Google Patents
A kind of multistage inductive energy storage type pulse power and method of supplying power to Download PDFInfo
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- CN108809085A CN108809085A CN201810770865.4A CN201810770865A CN108809085A CN 108809085 A CN108809085 A CN 108809085A CN 201810770865 A CN201810770865 A CN 201810770865A CN 108809085 A CN108809085 A CN 108809085A
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- power
- inductance
- load
- thyristor
- commutation capacitor
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/125—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M3/135—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M3/137—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/142—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
Abstract
Include for the n power module loading Load power supplies, circuit structure is identical, parallel with one another the present invention relates to a kind of multistage inductive energy storage type pulse power and method of supplying power to；The power module uses STRETCH meat grinder topological structures, and n power module shares a commutation capacitor C.The present invention provides enough energy by the parallel connection of multiple power modules, to railgun transmitting；All power modules trigger simultaneously, avoid the mutual charging phenomenon between module；Power supply circuit is isolated with load, increases power supply reliability and electrical safety；All power modules share commutation capacitor, substantially reduce the volume of power module.
Description
Technical field
The present invention relates to power technique fields more particularly to a kind of multistage inductive energy storage type pulse powers and method of supplying power to.
Background technology
The transmitting of railgun needs amplitude big and the pulse current of duration length, and it is common to generally require multiple power modules
Load discharge could be realized；And comprising high pressure resistant, large capacity, bulky capacitor element in power module, with power supply mould
The quantity of block increases so that the volume bigger of railgun power supply is unfavorable for the application in actual combat of railgun.
Invention content
In view of above-mentioned analysis, the present invention is intended to provide a kind of multistage inductive energy storage type pulse power and method of supplying power to, carry
Greatly and the pulse current grown of duration for amplitude, and it is huge to solve power volume, the problem of being unfavorable for application in actual combat.
The purpose of the present invention is mainly achieved through the following technical solutions：
A kind of multistage inductive energy storage type pulse power, including the identical power module of n circuit structure, the power module
It is parallel with one another, for giving load Load power supplies；
The power module uses STRETCH meat grinder topological structures, and n power module shares one
Commutation capacitor C.
Further, i-th of power module includes DC constant voltage power supply usi, main switch Sopi, series inductance Li1And Li2, it is brilliant
Brake tube Ti1, diode Di1And Di2, i=1 ..., n；
The DC constant voltage power supply usiAnode with the main switch SopiPositive terminal connects, the main switch SopiIt is negative
Pole terminals and the inductance Li1Same Name of Ends connects, the inductance Li1And Li2Series connection, the inductance Li2It is permanent that different name end connects direct current
Voltage source usiCathode form circuit；
The inductance Li2Same Name of Ends and diode Di2Cathode connection, the diode Di2Anode connection load Load
One end, the other end for loading Load connect the inductance Li2Different name end；
The thyristor Ti1Anode and the diode Di1Cathode be connected to the main switch SopiNegative terminals；
The commutation capacitor C is connect with each power module, anode and the thyristor T in each power modulei1The moon
Pole and diode Di1Anode connection；Its cathode and the inductance L in each power modulei2Different name end and DC constant voltage power supply usii
Cathode connection.
Further, the series inductance Li1And Li2It is two inductance coils with high coupling, the coefficient of coup is more than
0.9。
Further, the main switch SopiFor IGCT devices；All power module main switch SopiBy the same signal control
System, simultaneously turns on or disconnects.
Further, the thyristor T of all power modulesi1The same signal control, simultaneously turns on or disconnects.
Further, further include thyristor Tn+1, the thyristor Tn+1Anode with load Load connect, cathode with own
The diode D of power modulei2Anode connection；By controlling thyristor Tn+1Cut-off or conducting, make load Load and pulse power
Isolated from power or connection.
A kind of method of supplying power to of the multistage inductive energy storage type pulse power, which is characterized in that include the following steps：
Step S1, all power module main switch SopiIt simultaneously turns on, DC constant voltage power supply usiGive series inductance Li1And Li2
Charging.
Step S2, after charging current is more than the electric current designated value of setting, all power module main switch SopiBreak simultaneously
It opens, terminates series inductance Li1And Li2Charging；Inductance Li2Give load Load power supplies, inductance Li1Give commutation capacitor C reverse chargings；
Step S3, the thyristor T of all power modules is triggeredi1, make thyristor Ti1It simultaneously turns on, release commutation capacitor C is deposited
The electric energy of storage, the supply current of supplement load Load, until railgun emits.
Further, the thyristor Ti1Triggering and conducting number more than once, each triggering and conducting opportunity be the change of current
Capacitance C reverse chargings are full of the moment.
Further, by the both ends commutation capacitor C shunt voltage detection module, detecting the reversed of commutation capacitor C voltage
The maximum value moment judge commutation capacitor C reverse chargings be full of the moment.
Further, by inductance Li1With diode Di1Between series current detection module, detection inductance Li1Upper electric current
For zero moment come judge commutation capacitor C reverse chargings be full of the moment.
The present invention has the beneficial effect that：
By the parallel connection of multiple power modules, enough energy are provided to railgun transmitting；All power modules trigger simultaneously,
Avoid the mutual charging phenomenon between module；Power supply circuit is isolated with load, increases power supply reliability and electrical safety；
All power modules share commutation capacitor, substantially reduce the volume of power module.
Description of the drawings
Attached drawing is only used for showing the purpose of specific embodiment, and is not considered as limitation of the present invention, in entire attached drawing
In, identical reference mark indicates identical component.
Fig. 1 is multistage inductive energy storage type pulse power topological diagram in the embodiment of the present invention；
Fig. 2 is the equivalent circuit structure figure of single power module in the embodiment of the present invention；
Fig. 3 is the charging circuit isoboles of single power module in the embodiment of the present invention；
Fig. 4 is commutation capacitor charge and discharge equivalent circuit structure figure in the embodiment of the present invention.
Specific implementation mode
Specifically describing the preferred embodiment of the present invention below in conjunction with the accompanying drawings, wherein attached drawing constitutes the application part, and
It is used to illustrate the principle of the present invention together with embodiments of the present invention.
The specific embodiment of the present invention, a kind of multistage inductive energy storage type pulse power, as shown in Figure 1, including n phase
Mutually power module in parallel, connection load Load give load Load power supplies；
The circuit structure of n power module is identical, using STRETCH meat grinder topological structures；
Also, n power module is all connect with the same commutation capacitor C, shares commutation capacitor C.
The structure of each power module is identical in Fig. 1, identical as the load connection type of Load, the company with commutation capacitor C
It is also identical to connect mode；The present embodiment carries out circuit description by taking one of power module i as an example.
Power module i and load Load, the connection relation of commutation capacitor C are as shown in Figure 2；
Power module i includes DC constant voltage power supply usi, main switch Sopi, series inductance Li1And Li2, thyristor Ti1, diode
Di1And Di2, i=1 ..., n；
DC constant voltage power supply usiAnode with main switch SopiPositive terminal connects, main switch SopiNegative terminals and institute
State inductance Li1Same Name of Ends connects, inductance Li1And Li2Series connection, inductance Li2Different name end connects DC constant voltage power supply usiCathode composition
Circuit；
Inductance Li2Same Name of Ends and diode Di2Cathode connection, diode Di2Anode connection load Load one end, load
The other end connection inductance L of Loadi2Different name end；
Thyristor Ti1Anode and the diode Di1Cathode be connected to the main switch SopiNegative terminals；
The anode for the commutation capacitor C being connect with each power module and the thyristor T in power modulei1Cathode and two
Pole pipe Di1Anode connection；Inductance L in the cathode and power module of commutation capacitor Ci2Different name end and DC constant voltage power supply usii
Cathode connection.
Preferably, the series inductance Li1And Li2It is two inductance coils with high coupling, the coefficient of coup is more than 0.9,
And in the selection of inductance value, inductance L ensure thati1It is Li2Tens times.
Preferably, the main switch SopiFor IGCT devices；And the change of current is formed between power module in parallel in order to prevent
Circuit, generating coupling phenomenon influences the waveform of load current, and generation mutually fills phenomenon, during power supply power supply, all power supply moulds
Block main switch SopiIt simultaneously turns on or disconnects, controlled by the same signal；
Pass through closure main switch Sopi, DC constant voltage power supply usiTo there are two inductance L of close couplingi1And Li2Charging, herein
Inductance Li1It is defined as the first inductance, inductance Li2It is defined as the second inductance.When charging current reaches the value of setting in inductance
When, disconnect main switch Sopi, inductance Li1Electric current, magnetic linkage can be reduced, according to disconnection main switch SopiFront and back magnetism chain conservation, inductance Li2
Magnetic linkage can increase, electric current iLi2Rise, diode Di2Load Load power supplies are given in conducting.Due in the selection of inductance value, protecting
Demonstrate,prove inductance Li1It is Li2Tens times, such inductance Li2In electric current iLi2It can rapid increase.
Because of inductance Li1And Li2It is not ideal coupling, there are leakage magnetic flux, main switch SopiElectric current is during disconnection
High voltage is will produce, this high pressure even has main switch SopiThe possibility of breakdown；
To prevent breakdown main switch Sopi, therefore introduce commutation capacitor C.Inductance Li1Pass through diode Di1, load Load,
Commutation capacitor C, diode Di2, inductance Li1Circuit gives commutation capacitor C reverse chargings, commutation capacitor C to store electric energy, capacitance voltage
Absolute value gradually increases, inductance Li1Electric current is gradually reduced, as inductance Li1When current over-zero, diode Di1Naturally it turns off, change of current electricity
Hold voltage on C and obtain reversed maximum voltage value, be reversely full of, commutation capacitor C storage electric energy finishes.
There are reversed maximum voltage value, thyristor T on commutation capacitor Ci1Though bear positive pressure, without apply trigger pulse without
Conducting, so commutation capacitor C voltage remains unchanged, electric energy does not discharge；At this point, the inductance L of each power modulei2To load
Load powers, at this time iLoad=∑ iLi2。
By triggering thyristor Ti1, the electric energy release for making commutation capacitor C store, inductance Li1And Li2It is common to give load load
Power supply, and realize the adjustment of load Load current waveforms；
Special, to reduce the power volume problems of too excessively brought by capacitor, n power module shares one and changes
Galvanic electricity holds C；In order to prevent since n power module shares commutation capacitor C, the mutual charging phenomenon brought occurs, all power supply moulds
The thyristor T of blocki1It simultaneously turns on or disconnects, controlled by the same signal.
Optionally, thyristor Ti1Conducting opportunity can be selected in commutation capacitor C reverse chargings be full of the moment.
Special, further include thyristor Tn+1, the thyristor Tn+1Anode connect with load Load, cathode and all electricity
The diode D of source modulei2Anode connection；By controlling thyristor Tn+1Cut-off or conducting make load Load and pulse power electricity
Source is isolated or connection.
Pass through thyristor Tn+1Control action so that load Load and power supply realization is isolated, increase circuit reliability with
Electrical safety.
A kind of method of supplying power to of the multistage inductive energy storage type pulse power, includes the following steps：
Step S1, all power module main switch SopiIt simultaneously turns on, DC constant voltage power supply usiGive series inductance Li1And Li2
Charging.
Since in this step, the charging process of each power module is independent from each other；The charging of each power module
Equivalent circuit diagram is as shown in figure 3, DC constant voltage power supply usiPass through main switch SopiGive series inductance Li1And Li2Charging.
Step S2, after charging current is more than the electric current designated value of setting, all power module main switch SopiBreak simultaneously
It opens, terminates series inductance Li1And Li2Charging；Inductance Li2Give load Load power supplies, inductance Li1Give commutation capacitor C reverse chargings；
All power module main switch SopiAfter simultaneously switching off, the inductance L of each power modulei1Pass through diode Di1, it is negative
Carry Load, commutation capacitor C, diode Di2, inductance Li1Circuit gives commutation capacitor C reverse chargings, commutation capacitor C to store electric energy, electricity
Hold absolute value of voltage gradually to increase, inductance Li1Electric current is gradually reduced, as inductance Li1When current over-zero, diode Di1Naturally it turns off,
Voltage obtains reversed maximum voltage value on commutation capacitor C, is reversely full of, and commutation capacitor C storage electric energy finishes.
Step S3, the thyristor T of all power modules is triggeredi1, make thyristor Ti1It simultaneously turns on, release commutation capacitor C is deposited
The electric energy of storage, the supply current of supplement load Load, until railgun emits.
Clearly to analyze the step, the stage work partial circuit isoboles of i-th of power module as shown in figure 4,
Step S3 detailed processes are as follows,
In thyristor Ti1There is the following four stage to before triggering the thyristor again after triggering, commutation capacitor C is to electricity
Feel Li1Reverse charging, inductance Li1Commutation capacitor C positive charges, commutation capacitor C is given to give inductance Li1Positive charge, inductance Li1To changing
Galvanic electricity holds C reverse chargings.
Stage one, commutation capacitor C give inductance Li1Reverse charging；Ti1After triggering and conducting commutation capacitor C by load Load,
Diode Di2, inductance Li1, thyristor Ti1, the electric discharge of the circuits commutation capacitor C, the voltage on commutation capacitor C gradually increases from negative maximum value
Greatly to zero, inductance Li1Upper electric current iLi1It is gradually increased to negative maximum value from zero.
Stage two, inductance Li1Give commutation capacitor C positive charges；The voltage of commutation capacitor C, which is started from scratch, to be gradually increased, until
Inductance Li1Upper electric current iLi1When changing to zero, the voltage of commutation capacitor C is positive maximum.According to specified reference direction it is found that
iLoadi=iLi2-iLi1, i at this timeLi1For negative value, so iLoadIt is increased.Inductance Li2Powering load always, so iLi2It is one
It is directly reducing, therefore iLoadExtreme value depend on iLi1、iLi2Rate of change, instead of occurring at iLi1At the time of being zero.
Stage three, commutation capacitor C give inductance Li1Positive charge；Upper stage Mo, the voltage of commutation capacitor C are positive very big
Value, diode Di1It bears positive pressure and is connected.Commutation capacitor C passes through diode Di1, inductance Li1, diode Di2, load Load, change
Galvanic electricity holds the electric discharge of the circuits C.iLi1To start from scratch and increases to positive maximum value, the voltage of commutation capacitor C is reduced since positive maximum value,
Until being zero.
Stage four, inductance Li1Give commutation capacitor C reverse chargings；The voltage of commutation capacitor C from zero be gradually reduced to it is negative most
Big value, iLi1It is gradually reduced to zero, diode Di1Middle current over-zero turns off naturally.The voltage of commutation capacitor C keeps negative value constant.
Optionally, again raised on load Load rise-time of current to avoid, thyristor Ti1Triggering for the first time, be selected in the change of current electricity
That holds C reverse chargings is full of the moment.
Special, it is full of the moment for determining commutation capacitor C reverse chargings, it can be by the both ends commutation capacitor C electricity in parallel
Press detection module, by detect commutation capacitor C voltage obtain reverse charging be full of the moment.
Special, it can also be in inductance Li1With diode Di1Between series current detection module, due to load Load be small resistance
Sense load is full of moment, inductance L in commutation capacitor C reverse chargingsi1On electric current be zero；By being connected on inductance Li1It powers on
It is that zero moment is full of the moment to get to commutation capacitor C reverse chargings to flow detection module detection electric current.
Special, it can be by repeatedly to thyristor Ti1Triggering makes thyristor Ti1Repeatedly conducting, release commutation capacitor C are deposited
The electric energy of storage adjusts iLoadWaveform loads Load current waveforms；Each thyristor Ti1The opportunity of conducting, triggering and conducting opportunity be
Commutation capacitor C reverse chargings are full of the moment.
In conclusion the multistage inductive energy storage type pulse power and method of supplying power to disclosed in the present embodiment, pass through multiple power supplys
Wired in parallel provides enough energy to railgun transmitting；All power modules trigger simultaneously, avoid mutually filling between module
Electrical phenomena；Power supply circuit is isolated with load, increases power supply reliability and electrical safety；All power modules share the change of current
Capacitance substantially reduces the volume of power module.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of multistage inductive energy storage type pulse power, which is characterized in that including the identical power module of n circuit structure, institute
It is parallel with one another to state power module, for giving load Load power supplies；
The power module uses STRETCH meat grinder topological structures, and n power module shares a change of current
Capacitance C.
2. the pulse power according to claim 1, which is characterized in that i-th of power module includes DC constant voltage power supply usi、
Main switch Sopi, series inductance Li1And Li2, thyristor Ti1, diode Di1And Di2, i=1 ..., n；
The DC constant voltage power supply usiAnode with the main switch SopiPositive terminal connects, the main switch SopiCathode connects
Line end and the inductance Li1Same Name of Ends connects, the inductance Li1And Li2Series connection, the inductance Li2Different name end connects DC constant voltage electricity
Source usiCathode form circuit；
The inductance Li2Same Name of Ends and diode Di2Cathode connection, the diode Di2Anode connection load Load one end,
The other end for loading Load connects the inductance Li2Different name end；
The thyristor Ti1Anode and the diode Di1Cathode be connected to the main switch SopiNegative terminals；
The commutation capacitor C is connect with each power module, anode and the thyristor T in each power modulei1Cathode and
Diode Di1Anode connection；Its cathode and the inductance L in each power modulei2Different name end and DC constant voltage power supply usiiIt is negative
Pole connects.
3. the pulse power according to claim 2, which is characterized in that the series inductance Li1And Li2It is that there is high coupling
Two inductance coils, the coefficient of coup are more than 0.9.
4. the pulse power according to claim 2 or 3, which is characterized in that the main switch SopiFor IGCT devices；It is all
Power module main switch SopiIt is controlled by the same signal, simultaneously turns on or disconnect.
5. the pulse power according to claim 2 or 3, which is characterized in that the thyristor T of all power modulesi1By same
A signal control, simultaneously turns on or disconnects.
6. the pulse power according to claim 2 or 3, which is characterized in that further include thyristor Tn+1, the thyristor Tn+1
Anode with load Load connect, the diode D of cathode and all power modulesi2Anode connection；By controlling thyristor Tn+1
Cut-off or conducting, make load Load be isolated or connect with impulse power electrical source.
7. a kind of method of supplying power to using the multistage inductive energy storage type pulse power described in claim 1-6, which is characterized in that including
Following steps：
Step S1, all power module main switch SopiIt simultaneously turns on, DC constant voltage power supply usiGive series inductance Li1And Li2Charging.
Step S2, after each power module charging current is more than the electric current designated value of setting, all power module main switch Sopi
It simultaneously switches off, terminates series inductance Li1And Li2Charging；Inductance Li2Give load Load power supplies, inductance Li1It is reversely filled to commutation capacitor C
Electricity；
Step S3, the thyristor T of all power modules is triggeredi1, make thyristor Ti1It simultaneously turns on, the C storages of release commutation capacitor
Electric energy, the supply current of supplement load Load, until railgun emits.
8. method of supplying power to according to claim 7, which is characterized in that the thyristor Ti1Triggering and conducting number it is more than
Once, each triggering and conducting opportunity is commutation capacitor C reverse chargings full of the moment.
9. method of supplying power to according to claim 8, which is characterized in that by being detected in the both ends commutation capacitor C shunt voltage
Module, detect commutation capacitor C voltage the reversed maximum value moment come judge commutation capacitor C reverse chargings be full of the moment.
10. method of supplying power to according to claim 8, which is characterized in that by inductance Li1With diode Di1Between connect
Current detection module, detection inductance Li1Upper electric current for zero moment come judge commutation capacitor C reverse chargings be full of the moment.
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| CN201810770865.4A CN108809085A (en) | 2018-07-13 | 2018-07-13 | A kind of multistage inductive energy storage type pulse power and method of supplying power to |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112448607A (en) * | 2020-11-14 | 2021-03-05 | 大连理工大学 | Novel n-level inductance energy storage type large-current power supply circuit topological structure |
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| CN107707147A (en) * | 2017-09-21 | 2018-02-16 | 北京机械设备研究所 | A kind of the inductive energy storage type pulse power and energy reclaiming method with energy regenerating |
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2018
- 2018-07-13 CN CN201810770865.4A patent/CN108809085A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107707147A (en) * | 2017-09-21 | 2018-02-16 | 北京机械设备研究所 | A kind of the inductive energy storage type pulse power and energy reclaiming method with energy regenerating |
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