CN108134534A - The full energy storage pulse power and current impulse production method - Google Patents
The full energy storage pulse power and current impulse production method Download PDFInfo
- Publication number
- CN108134534A CN108134534A CN201810114423.4A CN201810114423A CN108134534A CN 108134534 A CN108134534 A CN 108134534A CN 201810114423 A CN201810114423 A CN 201810114423A CN 108134534 A CN108134534 A CN 108134534A
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- storage capacitor
- pulse
- energy
- power
- magnet
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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
- H02M11/00—Power conversion systems not covered by the preceding groups
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
- H03K3/57—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback the switching device being a semiconductor device
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/02—Circuits or systems for supplying or feeding radio-frequency energy
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/02—Circuits or systems for supplying or feeding radio-frequency energy
- H05H2007/022—Pulsed systems
Abstract
The present invention relates to a kind of current impulse generate method, including：Using energy-storage capacitor storage energy, all provided in energy needed for the current waveform pulse ascent stage by the storage capacitor；It is deposited in current waveform descending branch magnet load inductance during energy returns to the storage capacitor, is ready for next pulse, realizes energy recycling.The present invention uses full energy storage mode, targetedly solves the main problem of particle accelerator pulse power soaking power supply.
Description
Technical field
The present invention relates to particle accelerator fields, further relate to the full energy storage pulse power and current impulse production method.
Background technology
Particle accelerator is a kind of device accelerated to charged particle, and wherein particle is moved in confining magnetic field
, magnet collectively forms accelerator magnetic field system with field power supply.Synchrotron is one kind of particle accelerator, and accelerator exists
When accelerating to charged particle, with the raising of accelerated particle energy, confining magnetic field also needs synchronous raising, therefore exciting current
Raising need to be synchronized, magnetic field needs to be reduced to low level after the completion of accelerating the period when one, in accelerated particle line particle booster,
Prepare to start next acceleration period, synchrotron field power supply exemplary operation current waveform is as shown in the upper figures of Fig. 1.It is synchronous to add
Fast device field power supply needs to work in pulse mode, and the exciting current period, which determines, accelerates the period.Synchrotron magnet is practical
On be a big inductance, in addition magnet is often together in series in synchrotron, in a word field power supply load is a low resistance
Big inductance.It is relatively difficult that the very short pulse current of rise time and fall time is generated on one very big inductance.Mesh
Preceding to be obtained generally there are two types of mode for big inductance magnet pulse current, one kind is resonance manner, i.e., using series resonance or
Parallel resonance mode obtains pulse current on magnet coil, and the pulse current frequency that such mode generates is generally up to tens hertz
Hereby to hundreds of hertz, but resonance manner can only generate the sinusoidal current waveform of fixed frequency, and frequency is not easy to adjust, suitable for solid
Surely in the field power supply exported.Another mode is soaking mode, i.e. power supply generates very high driving voltage and is added in by force
On magnet inductance, so as to which current waveform, such mode current waveform, amplitude, frequency etc. needed for the generation on inductance can be adjusted arbitrarily
Section, but when output current is very big or magnet inductance is very big, because required soaking voltage is too high, output current frequency
It will not be too high.
Because magnet is inductance, but also is very big inductive load, high-frequency heavy-current pulse is generated, it is meant that very high
Current changing rate, according to the law of electromagnetic induction, this inevitable requirement field power supply provides very high soaking voltage, and high voltage is big
Electric current means that power pulse power can very significantly.Power supply is needed from power grid extracting energy when electric current rises, and electric current rises
Time to cause energy that cannot be gone in load from power grid in time very in short-term, because there are various inductive elements in power grid circuit, therefore
Current rise time cannot be too short under normal circumstances, and current-rising-rate cannot be too high；Energy when electric current declines in magnet inductance
Amount need to be transferred out from magnet or be fallen by resistance consumption, and such power-efficient is very low, very uneconomical.Magnet energy
Inversion telegram in reply net is a kind of good selection, but downslope time is shorter, and inversion peak power is bigger, and power grid is rushed
Bigger, very big to power grid generation disturbance is hit, power grid power quality is exceeded when serious is unable to normal power supply, and it is reliable to influence power grid
Property and safety.Therefore, in order to reduce various impacts, soaking pulse power rise and fall time is all long, that is, arteries and veins
Frequency is rushed all than relatively low, does not exceed 1Hz generally.In conclusion in the pulse power of traditional soaking voltage, current impulse
Frequency can not possibly be too high, generally within 1 hertz；It is bigger to electric network influencing during power work, generally to adopt various measures
Power network fluctuation is compensated and is adjusted；And power pulse power is very big, it is desirable that also very big with electrical power.
In addition, as shown in Fig. 1 medium voltage waveforms, in electric current Injection Section and flat-top section, electric current is direct current, at this time inductance electricity
Pressure is zero, and only DC voltage namely Injection Section voltage VP1 and flat-top section voltage VP3 is several times lower than compared with crest voltage VP2 to tens
Times, it is meant that power supply output needs voltage to need in a wide range of interior consecutive variations, and needs guarantee power supply defeated in each stage
Go out precision, this is extremely difficult for power supply.Ordinary circumstance is to ensure field-forcing voltage, in this way in flat-top section supply voltage very
Low, for Switching Power Supply, duty ratio seriously affects power source performance with regard to very little.And direct current section is either Injection Section or is
Stages, this modes such as line storage adversely affect flat-top section line.
Invention content
(1) technical problems to be solved
In view of this, the purpose of the present invention is to provide a kind of full energy storage pulse power and current impulse production method, with
At least partly solve the problems, such as techniques discussed above.
(2) technical solution
According to an aspect of the present invention, a kind of method that current impulse generates is provided, including：
Using energy-storage capacitor storage energy, all carried in energy needed for the current waveform pulse ascent stage by the storage capacitor
For；
It deposits in current waveform descending branch magnet load inductance during energy returns to the storage capacitor, is done for next pulse
It is good to prepare, realize energy recycling.
In a further embodiment, application switch rectifier charges as high-voltage power supply for the storage capacitor.
In a further embodiment, using the combination of two kinds of voltage source serial or parallel connections of high pressure and low pressure, it is
The storage capacitor charging.
In a further embodiment, using multiple power module series-parallel connection methods, output current pulse is realized.
In accordance with a further aspect of the present invention, a kind of full energy storage pulse power is provided, including：
Multiple power cells are configured to be connected with magnet load electrode, and each power cell includes：Voltage source and energy storage
Capacitance；Voltage source is connected to the both ends of storage capacitor, for charging for the storage capacitor；The multiple power cell connection in series-parallel
It is connect after connection with magnet electrode, the energy needed for the current waveform pulse ascent stage needed for magnet is provided.
In a further embodiment, the voltage source includes high-voltage power supply, and the high-voltage power supply is connected to the energy storage electricity
Hold both ends, for the storage capacitor being given to power respectively.
In a further embodiment, switching switch is further included, the switching switch is set to low pressure source and energy storage electricity
On the circuit of appearance, control low pressure source and the break-make of the storage capacitor.
In a further embodiment, H bridging parallel operations are further included, are set between storage capacitor and magnet, by accounting for
Sky realizes the control to electric current than control.
In a further embodiment, control section is further included, is connect respectively with each power cell, for each power
Unit output pulse width duty ratio PMW controls signal.
In a further embodiment, the multiple power cell for parallel connection and/or is connected, multiple power cell strings
After connection/parallel connection, it is then connected to magnet load both ends.
According to another aspect of the invention, a kind of particle accelerator is provided, including：
Magnet loads,
The full energy storage pulse power of any description above is connected to the both ends of the magnet load.
(3) advantageous effect
By using method of the switching mode pulse width modulation rectifier (PWM rectifier) as high-voltage power supply, to high-voltage energy storage electricity
Hold Cf2 and carry out invariable power charging, realize double-direction control of the energy from storage capacitor to power grid, to electricity when reducing power pulse work
The impact of net greatly improves power grid power quality and power supply reliability, stability.
By using the mode of two kinds of power supply organic assemblings of high pressure and low pressure, series connection, which may be used, can also use parallel connection,
By switching switch, when needing low pressure, low-tension supply works, and high voltage power supply during high pressure is needed to work, solves Larger Dynamic range
The problem of consecutive variations so that duty ratio is remained in a state that one bigger, solves the problems, such as high-precision control.
By establishing the concept of standard module, realize large power supply modularized design, installation, can will switch work side
Formula is introduced into large power supply, improves power source performance.
The present invention passes through the introducing of storage capacitor and switching mode pulse width modulation rectifier and the synthesis of Yi Shang other measures
Using can realize that particle accelerator magnetic field power supply can generate very short rise and fall time significantly in big inductive load
Current impulse so as to realize fast circulating working mode, while not adversely affects power grid during power work；
Present invention is generally directed to the high power strong Exciting-simulator system pulse power, after technology using the present invention, can effectively improve
Heavy current pulse frequency on magnet inductance.
Description of the drawings
Fig. 1 is the fast cycle pulse working waveform figure of the prior art；
Fig. 2 is the multiple branch circuit principle of parallel figure of the embodiment of the present invention；
Fig. 3 is cell power block coupled in series schematic diagram in the branch of the embodiment of the present invention；
Fig. 4 is the cell power module fundamental diagram of the embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in further detail.
According to an embodiment of the invention, a kind of method that current impulse generates is provided, including：It is stored using energy-storage capacitor
Energy is all provided in energy needed for the current waveform pulse ascent stage by the storage capacitor；It is born in current waveform descending branch magnet
Energy is deposited in load inductance to return in the storage capacitor, is ready for next pulse, realizes energy recycling.By right
High-voltage energy storage capacitor carries out invariable power charging, realizes double-direction control of the energy from storage capacitor to power grid, reduces power pulse work
To the impact of power grid when making.
In some embodiments, application switch rectifier charges as high-voltage power supply for the storage capacitor.Power supply is using more
The series-parallel system of power cell obtains high soaking voltage, to generate heavy current pulse electric current on inductive load.
In some embodiments, it is the storage using the combination of two kinds of voltage source serial or parallel connections of high pressure and low pressure
It can capacitor charging.
In some embodiments, using multiple power module series-parallel connection methods, output current pulse is realized.
It is according to embodiments of the present invention in another aspect, provide a kind of full energy storage pulse power, including：Multiple power cells,
It is configured to be connected with magnet load electrode, each power cell includes：Voltage source and storage capacitor；Voltage source is connected to energy storage
The both ends of capacitance, for charging for the storage capacitor；It is connect after the multiple power cell connection in series-parallel connection with magnet electrode,
Energy needed for the current waveform pulse ascent stage needed for magnet is provided.
In some embodiments, the voltage source includes high-voltage power supply, and the high-voltage power supply is connected to the storage capacitor both ends,
For the storage capacitor being given to power respectively.Each power cell is using full energy storage mode, and control energy is in magnet inductance and storage
Olderly flowage between energy capacitance.
In some embodiments, switching switch is further included, the switching switch is set to time of low pressure source and storage capacitor
On the road, control low pressure source and the break-make of the storage capacitor.
In some embodiments, H bridging parallel operations are further included, are set between storage capacitor and magnet, pass through duty ratio control
System realizes the control to electric current.By the orderly fluctuation of vector rectifier converter control bus voltage, solves power pulse work
To the shock problem of power grid when making.So that power supply may operate under faster working frequency, reach the fast circulation industrial of accelerator
Operation mode.
In some embodiments, control section is further included, is connect respectively with each power cell, for defeated to each power cell
Go out pulse duty cycle PMW control signals.
In some embodiments, the multiple power cell for parallel connection and/or is connected, and multiple power unit cascades/simultaneously
After connection, it is then connected to magnet load both ends.
The embodiment of the present invention is specifically described below in conjunction with attached drawing, is followed soon according to what the specific embodiment of the invention provided
The full energy storage high-power high-accuracy pulse power of ring, exemplary operation waveform are as shown in Figure 1.Power supply introduces modular construction concept,
Basic power cell is designed, then power supply output requirement is reached by the series/parallel of prime power unit, i.e., by smaller
Power cell combines to obtain high-power output, enabling application switch type operation principle.Its circuit topological structure such as 2 institute of attached drawing
Show, by multiple individual power cells by series connection to obtain required high voltage, the series of series connection depend on current rise time,
Pulse current amplitude and load inductance.Power cell after series connection forms an arm, and the electric current of bigger can incite somebody to action in order to obtain
Multiple series arms are in parallel, and Fig. 3 is exactly multiple series arm parallel connection schematic diagrames.By establishing the concept of standard block power module, lead to
The independent assortment of cell power module is crossed, greatly facilitates the realization of large power supply, greatly increases power supply reliability, economy.
As shown in Figure 1, power supply need to export the voltage of wide scope variation, so if using a field-forcing voltage source, it is difficult to
Ensure the tracking index request of platform/ascent stage stability indicator requirement and rapid increase section simultaneously.Therefore each power cell is adopted
It is designed with prime field-forcing voltage is become, power cell topological structure is as shown in Figure 4.Power cell is by H bridgings parallel operation, high pressure in Fig. 4
Source (meet electric current rise needed for voltage, up to more than 900V in the embodiment of the present invention), storage capacitor, low pressure source, switching switch
It is formed etc. several parts.H bridging parallel operations are ordinary tap converters, are realized by Duty ratio control and the precision of output current is controlled
System.High-voltage power supply charges for storage capacitor, while can be by capacitive energy inversion telegram in reply net.Low pressure source provides flat-top energy, switching
Switch is responsible for the switching between height potential source.By using the mode of two kinds of power supply organic assemblings of high pressure and low pressure, may be used
Series connection can also use parallel connection, and by switching switch, when needing low pressure, low-tension supply works, high voltage power supply work when needing high pressure
Make, solve the problems, such as Larger Dynamic range consecutive variations so that duty ratio is remained in a state that one bigger, solution
It has determined high-precision control problem.
During normal work, TP1 sections of platform of injection, that is, first segment direct current platform are initially entered, high-voltage power supply starts at this time
Required high-voltage value is charged to storage capacitor, thus capacitance storage energy provides whole energy needed for the ascent stage, but cuts at this time
It changes switch to disconnect, low pressure source is devoted oneself to work first, ensures low pressure stage normal work.
When electric current begins to ramp up TR1 sections, switching switch is opened, and high-voltage power supply puts into operation, and low pressure source is naturally out of service,
Energy in storage capacitor is passed to magnet by H bridgings parallel operation as an electrical current, and the voltage synchronous on storage capacitor declines, and works as electricity
When stream rises to rated value and enters flat-top section TP2, the energy part in storage capacitor has been converted into the inductance energy of magnet coil,
Voltage only needs platform voltage VP3 at this time, and switching switch is cut off, and continues to be powered by low pressure source, to keep stable high-performance
Index electric current output.
When magnet current enters descending branch TF1, magnet inductance generates induced potential, starts to fill to storage capacitor in turn
Electricity is deposited inductance energy in magnet and is transferred back to again in storage capacitor Cf2, and storage capacitor voltage gradually rises at this time.With electric current
Pulse raising and lowering, energy just back and forth flow in capacitance and inductance, because circuit, there are resistance, magnet coil also has electricity
Resistance, therefore in each cycle, energy all can fall a part by resistance consumption, and the energy ratio in capacitance is returned in electric current descending branch
The little energy run out, at this moment tank voltage is lower than before electric discharge, in order to ensure that next cycle works normally, PWM at this time
Switching rectifier high-voltage power supply starts to devote oneself to work, and charges to storage capacitor, until charging to required high-voltage value.High pressure and low pressure exist
It is converted under main controller controls by switching switch.
Another aspect according to embodiments of the present invention, provides a kind of particle accelerator, including：Magnet loads and to take up an official post
The full energy storage pulse power described in one is connected to the both ends of the magnet load.
The pulse power and current impulse production method through the embodiment of the present invention, solve following soon under big inductive load
Ring high-accuracy heavy-current pulse power problem of implementation.
Particular embodiments described above has carried out the purpose of the present invention, technical solution and advantageous effect further in detail
Describe in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the protection of the present invention
Within the scope of.
Claims (11)
1. a kind of method that current impulse generates, it is characterised in that including：
Using energy-storage capacitor storage energy, all provided in energy needed for the current waveform pulse ascent stage by the storage capacitor；
It is deposited in current waveform descending branch magnet load inductance during energy returns to the storage capacitor, standard is carried out for next pulse
It is standby, realize energy recycling.
2. the method that current impulse as described in claim 1 generates, which is characterized in that application switch rectifier is as high pressure
Source is charged for the storage capacitor.
3. the method that current impulse as described in claim 1 generates, which is characterized in that using two kinds of voltage sources of high pressure and low pressure
The combination of serial or parallel connection charges for the storage capacitor.
4. the method that current impulse as described in claim 1 generates, which is characterized in that use multiple power module connection in series-parallel sides
Method realizes output current pulse.
5. a kind of full energy storage pulse power, which is characterized in that including：
Multiple power cells are configured to be connected with magnet load electrode, and each power cell includes：Voltage source and energy storage electricity
Hold；Voltage source is connected to the both ends of storage capacitor, for charging for the storage capacitor；The multiple power cell connection in series-parallel connects
It is connect after connecing with magnet electrode, the energy needed for the current waveform pulse ascent stage needed for magnet is provided.
6. the full energy storage pulse power according to claim 5, which is characterized in that the voltage source includes high-voltage power supply, described
High-voltage power supply is connected to the storage capacitor both ends, for the storage capacitor being given to power respectively.
7. the full energy storage pulse power according to claim 6, which is characterized in that further include switching switch, the switching is opened
Pass is set on the circuit of low pressure source and storage capacitor, control low pressure source and the break-make of the storage capacitor.
8. the full energy storage pulse power according to claim 5, it is characterised in that further include H bridging parallel operations, be set to energy storage
Between capacitance and magnet, the control to electric current is realized by Duty ratio control.
9. the full energy storage pulse power according to claim 5, which is characterized in that further include control section, respectively with each work(
Rate unit connects, for controlling signal to each power cell output pulse width duty ratio PMW.
10. the full energy storage pulse power according to claim 5, which is characterized in that the multiple power cell for it is in parallel and/
Or series connection, after multiple power unit cascade/parallel connections, it is then connected to magnet load both ends.
11. a kind of particle accelerator, it is characterised in that including：
Magnet loads,
Any full energy storage pulse powers of claim 5-10 are connected to the both ends of the magnet load.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810114423.4A CN108134534A (en) | 2018-02-05 | 2018-02-05 | The full energy storage pulse power and current impulse production method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810114423.4A CN108134534A (en) | 2018-02-05 | 2018-02-05 | The full energy storage pulse power and current impulse production method |
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| CN108134534A true CN108134534A (en) | 2018-06-08 |
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Cited By (2)
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| CN108832912A (en) * | 2018-08-17 | 2018-11-16 | 中国科学技术大学 | A kind of adjustable pulsed power supply for the excitation of space magnetic reconnection |
| CN114337260A (en) * | 2021-12-16 | 2022-04-12 | 重庆大学 | Circuit for improving dynamic response speed of inductor load current and control method |
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