CN104135166B - AC/DC power supply having adjustable high-power pulse edge time - Google Patents
AC/DC power supply having adjustable high-power pulse edge time Download PDFInfo
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- CN104135166B CN104135166B CN201410334766.3A CN201410334766A CN104135166B CN 104135166 B CN104135166 B CN 104135166B CN 201410334766 A CN201410334766 A CN 201410334766A CN 104135166 B CN104135166 B CN 104135166B
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Abstract
The invention discloses an AC/DC power supply having an adjustable high-power pulse edge time. The AC/DC power supply comprises a rectification power supply module, a steady-state DC power supply module, a pulse edge adjustment module and a reversion module, as for a pulse steady-state process, the rectification power supply module and the steady-state DC power supply module which are adopted in the AC/DC power supply output DC power to a load, and as for transient process of a pulse rising edge and a falling edge, the pulse edge adjustment module is used for controlling power exchange between the power supply and the load, so that time of a pulse jumping edge is adjusted; the reversion module is used for organically combining the steady-state DC power supply and the pulse edge adjustment module, and the power supply is controlled to output pulse alternating current or DC power to a magnet or a coil load in real time by a control system. Compared with the problems that the traditional high-power pulse or a main circuit topology of a square wave power supply and the control system are very complicated, the AC/DC power supply has the remarkable advantages of simplicity in the main circuit topology and the control system, low total cost in the system, high reliability and the like.
Description
Technical field
The invention belongs to high power electronic equipment technical field.Relate to one be applied to study of high energy physics,
The highpowerpulse in the field such as offshore oil exploration and pulse plating or square wave power, these fields are for electricity
There are strict demand source output pulse or the rising of square wave, trailing edge time, it is generally required to dynamically regulation power supply arteries and veins
Rush to liter, the trailing edge time.
Background technology
Applied in the magnet power supply that such as study of high energy physics field is applied, offshore oil exploration field
Application scenario, pulse or the square wave powers such as coil stimulating power supply provide a tentering to load Magnet or loading coil
Degree and the pulse of shape or square wave current, allow magnetic field in load Magnet or coil by pulse or square wave current
Amplitude and shape do periodically change.In these application scenarios, for output pulse or the square wave of power supply
There are clear and definite index request the rising edge of electric current and trailing edge time, the most also need dynamically to regulate, such as
Export in the injection bump Magnet pulse power technical parameter that pulse current is 6500A a kind of, it is desirable to pulse
Rise time is less than 500us, and pulse fall time is 150～400us.At present, prior art produces system
This type of power supply made, main circuit uses by organizing the series-parallel topological circuit of H bridge (the parallel connection of H bridge mostly
Shunting action, the series connection of H bridge plays dividing potential drop effect), and often group H bridge brachium pontis is by multiple brachium pontis joint group
Become；Control system uses multiple closed loop feedback to control, and programs given waveform with signal generator, will be given
Waveform compares with power supply output pulse current, produces pwm pulse signal by feedback control system,
Control IGBT driving pulse dutycycle, make power supply output pulse current follow the tracks of given waveform, become by program
The pulse current controlled.Although this pulse or square wave power scheme can meet the pulse target along control, but
Main circuit topological structure is the most complicated, typically need to use tens of groups of H bridge connection in series-parallel, power device IGBT quantity
Up to up to a hundred；The most complicated main circuit topology necessarily causes the complexity of control system, need to well solve
The a lot of problem of all pressures of connection in series-parallel H bridge, current-sharing and driving pulse concordance etc..It addition, this power supply
Scheme certainly will cost be high, volume is big, and reliability is low.
Summary of the invention
The present invention proposes a kind of novel highpowerpulse along time scalable power of alterating and direct current, employing stable state
The mode that power supply circuits and pulse combine along time adjustment circuit for Magnet or coil load provide pulse or
Square wave current, it is intended to propose a kind of pulse simple, high performance-price ratio electric along time adjustable pulse or square wave
Source scheme.
For realizing above-mentioned target, the technical scheme that the present invention proposes is as follows.
A kind of highpowerpulse is along time scalable power of alterating and direct current, mainly by rectifier power supply module 32, stable state
DC power supplier 33, pulse are along adjustment module 34；Inverting module 35, Magnet or coil load 36 form,
Wherein, pulse is used for controlling in rising edge of a pulse or trailing edge transient process to load along adjustment module 34
Release energy or the energy of storage loads feedback simultaneously therein energy being adjusted；Inverting module 35
For the direct current energy that described steady-state DC power module exports periodically being entered when load is in stable state
Row commutation, makes load Magnet or coil can obtain direct current energy and also can obtain AC energy；When load is in
During the transient process of rising edge of a pulse or trailing edge, it is used for controlling described pulse along between adjustment module and load
The direction of energy exchange；It is characterized in that, rectifier power supply module input is connected with three phase supply electrical network, defeated
Go out end to be connected with described steady-state DC power module input；Steady-state DC power module input is whole with described
Stream power module outlet connects, and outfan and described pulse are along adjustment module outfan and described commutation mould
Block input connects；Pulse is connected along adjustment module input with three phase supply electrical network, outfan with described surely
State DC power supplier outfan and described inverting module input connect；Inverting module input is with described
Steady-state DC power module outlet and described pulse connect along adjustment module outfan, the two ends of outfan
It is connected with load two ends respectively.
In a structure of the in-vention:
Rectifier power supply module 32, for being converted to by three-phase alternating-current powered voltage, voltage magnitude is constant or scalable
DC pulse moving voltage, for rear class power conversion modules provide direct current energy；Steady-state DC power module, will
The DC pulse moving voltage of rectifier power supply module conversion is converted to the smoother and adjustable high-frequency DC of amplitude
Can, it is supported in steady-state process required direct current energy for providing；Pulse, along adjustment module, is used for controlling
Rising edge of a pulse or trailing edge transient process release energy to load or the energy of storage loads feedback, with
Time therein energy is adjusted, to reach to meet pulse necessary energy along required regulating time
Requirement；Inverting module, when load is in stable state, described inverting module is by described steady-state DC power module
The direct current energy of output periodically commutates, and makes load Magnet or coil can obtain direct current energy and also can
Obtain AC energy；When load is in the transient process of rising edge of a pulse or trailing edge, described inverting module
For controlling described pulse along the direction of energy exchange between adjustment module and load.Rectifier power supply module inputs
End is connected with three phase supply electrical network, including three-phase reactor, three-phase bridge rectification circuit, flat ripple electricity
Anti-device and DC support electric capacity.Described three-phase reactor input is connected with three phase supply electrical network, defeated
Go out end to be connected with described three-phase bridge rectification circuit, be mainly used in limiting grid voltage mutation and switching overvoltage
The rush of current caused.Described rectified three-phase circuit input is connected with described three-phase reactor outfan, defeated
Go out proper pole to be connected with described smoothing reactor input, negative pole of output end and described DC support electric capacity negative pole
Connect, use three-phase not control or half control or full-controlled bridge rectification circuit, for being transformed to by three-phase alternating voltage
The DC voltage that amplitude is adjustable or constant.The input of described smoothing reactor and described rectified three-phase circuit outfan
Positive pole connects, and output is connected with described DC support capacitance cathode, is mainly used in suppressing DC pulse moving voltage
Ripple.Described DC support capacitance cathode is stated outfan with institute smoothing reactor and is connected, negative pole and described three-phase
Rectification circuit output end negative pole connects, and the output voltage of described rectified three-phase circuit is carried out smothing filtering, with
Time absorb and come from the amplitude pulsating current of rear class changer, make DC bus-bar voltage fluctuation be maintained at permission
In the range of.The both positive and negative polarity of described DC support electric capacity is positive and negative respectively as described rectifier power supply module outfan
Pole.
The input of steady-state DC power module 33 is connected with the DC output end of described rectifier power supply module
Connecing, specially input anode is connected with the positive pole of described DC support electric capacity, negative pole and described DC support
The negative pole of electric capacity connects.The output of described steady-state DC power module presets the unidirectional current of amplitude, it is provided that negative
It is loaded in steady-state process required direct current energy, the DC-DC topology electricity of multiple non-isolated or isolation can be used
Road, such as Buck, Boost, Buck-Boost or full-bridge circuit etc., select with specific reference to practical application
Preferably sense circuit topological structure, is illustrated in this specification as a example by Buck circuit.Use Buck topology
The steady-state DC power module of circuit includes full-control type power semiconductor (such as IGBT), fly-wheel diode,
Output reactance device and output capacitance；Described power device IGBT colelctor electrode is with described DC support electric capacity just
Pole connects, and emitter stage is connected with described fly-wheel diode negative electrode, described fly-wheel diode anode and described direct current
Support Capacitor negative pole connect, described output reactance device input is connected with fly-wheel diode negative electrode, outfan and
Described output capacitance positive pole connects, and described output capacitance negative pole is connected with described fly-wheel diode anode.Described
The both positive and negative polarity of output capacitance is respectively as the output both positive and negative polarity of described steady-state DC power module.
Pulse is connected along adjustment module 34 input with three phase supply electrical network, including three-phase reactor, three
Phase full-controlled bridge rectification circuit, electrical switch and storage capacitor.Described three-phase reactor and described three-phase
Fully controlled bridge rectification circuit one Three-Phase PWM Rectifier of composition.Described three-phase reactor input and three-phase
Power supply grid connects, and outfan is connected with described three-phase full-controlled bridge rectification circuit input end.Described three-phase fully-controlled
Bridge rectification circuit output head anode is connected with described electrical switch emitter stage, negative pole of output end and described energy storage electricity
Hold negative pole to connect.Described storage capacitor positive pole is connected with described electrical switch colelctor electrode, negative pole and described three-phase
Fully controlled bridge rectification circuit output negative pole connects.When described storage capacitor energy is inadequate, described three-phase PWM is whole
Three phase supply electrical network AC energy is transformed to direct current energy by stream device, charges for described storage capacitor；When described
Storage capacitor energy is abundant, and when exceeding its rated capacity, described Three-Phase PWM Rectifier is by described energy storage electricity
Three phase supply electrical network is returned in the unnecessary electric energy inversion feedback holding storage.Due between power supply grid and described storage capacitor
Energy need two-way flow, described three-phase fully-controlled bridge rectification circuit must use full-control type power semiconductor device
Part, such as IGBT.Described electrical switch is used for controlling between power supply grid and described storage capacitor and Magnet or line
Between circle load and described storage capacitor, the direction of energy Flow, can use the power semiconductor device of full-control type
Part, such as the IGBT of band inverse parallel fly-wheel diode.Described electrical switch colelctor electrode and described storage capacitor positive pole
Connecting, described electrical switch emitter stage is connected with described three-phase fully-controlled bridge rectification circuit output cathode.Described electricity
Son switch emitter stage is as described pulse along adjustment module output cathode, and described storage capacitor negative pole is as described
Pulse is along adjustment module output negative pole.
The direct current energy conversion that described steady-state DC power module is exported in steady-state process by inverting module 35
Flow to load for periodic AC energy, in the transient process of rising edge of a pulse or trailing edge, pass through
Power semiconductor is opened, turns off the described pulse of control along between adjustment module and Magnet or coil load
The direction of energy exchange.Described inverting module is made up of one group of (or organizing parallel connection) H bridging parallel operation more, H
Bridging parallel operation by the full-control type power semiconductor of four electric current energy two-way flows (such as band inverse parallel afterflow two
The IGBT of pole pipe) composition.In steady-state process, by periodically opening, turn off described H bridging in turn
Being in cornerwise two power semiconductors in parallel operation, exported by described steady-state DC power module is straight
Stream transformation of electrical energy is that AC energy passes to load；In pulse along the transient process risen, by open-minded
Described pulse is quickly discharged to Magnet or coil load by IGBT device along the energy of adjustment module storage inside,
Meet the load requirement for pulse power climbing speed；In pulse along the transient process declined, by IGBT
Device turns off, and the energy that Magnet or coil load store in steady-state process is through the antiparallel afterflow of IGBT
Diode quickly discharges along adjustment module unit to described pulse, meets load for pulse power fall off rate
Requirement.Inverting module input anode is connected with output capacitance positive pole in described steady-state DC power module,
Negative pole is connected with output capacitance negative pole.The midpoint of H bridging parallel operation leading-bridge exports as described inverting module
End one end, the midpoint of lagging leg is as the other end of described inverting module outfan.
Rectifier power supply module input is connected with three phase supply electrical network, outfan and described steady-state DC power supply mould
Block input connects.Steady-state DC power module input is connected with described rectifier power supply module outfan, defeated
Go out end to be connected along adjustment module outfan and described inverting module input with described pulse.Pulse is along regulation
Module input is connected with three phase supply electrical network, outfan and described steady-state DC power module outlet and
Described inverting module input connects.Inverting module input and described steady-state DC power module outlet with
And described pulse connects along adjustment module outfan, the two ends of outfan are connected with load two ends respectively.
The technique scheme of present invention scheme compared to existing technology has the following advantages.
Pulse power output pulse can be analyzed to pulse steady-state process and impulse hits along transient process two parts,
For pulse steady-state process, the present invention uses described steady-state DC power module pre-set to load output
Direct current energy, and for rising edge of a pulse and the transient process of trailing edge, the present invention uses described pulse edge
Adjustment module controls the energy Flow between power supply and load, thus regulates the rate of change on impulse hits edge,
Meet load for power supply output pulse rise time and the requirement of fall time.The pulse power is divided by the present invention
Solution is two power modules, is organically combined by two power modules by control system, is greatly simplified
The complexity of electric power main circuit topological sum control system, reduces the totle drilling cost of power supply, improves power supply
Reliability.The described inverting module that the present invention uses can not only realize the output of AC/DC pulse very easily,
And by control switching device open shutoff just can control described impulse regulating model and load between
Energy direction of transfer, the most flexibly.
Accompanying drawing explanation
Fig. 1 is the highpowerpulse of the present invention system schematic block diagram along time scalable power of alterating and direct current.
Fig. 2 is the highpowerpulse of the present invention main circuit topology along time scalable power of alterating and direct current embodiment
Figure；In figure, reference is expressed as: 31 three phase supply electrical networks；32 rectifier power supply modules；33 stable states
DC power supplier；34 pulses are along adjustment module；35 inverting modules；36 Magnet or coil load.
Fig. 3 is the highpowerpulse of the present invention output current wave along time scalable power of alterating and direct current embodiment
Shape schematic diagram；In figure, reference is expressed as: tr rising edge of a pulse transient process；Ts pulse stable state mistake
Journey；Tf pulse falling edge transient process.
Detailed description of the invention
Below, in conjunction with accompanying drawing, the structure of the present invention is described in further detail.
Fig. 2 show a kind of physical circuit implementation of above-mentioned proposed technical scheme, including: three-phase supplies
Electricity electrical network 31, rectifier power supply module 32, steady-state DC power module 33, pulse, along adjustment module 34, is changed
To module 35 and Magnet or coil load 36.
Rectifier power supply module 32 uses three phase full bridge uncontrollable rectifier circuit topology, including three-phase reactor
L1, commutation diode D1～D6, smoothing reactor L2 and DC support electric capacity C1；Wherein three-phase inlet wire
Reactor L1 is mainly used in limiting the rush of current that grid voltage mutation and switching overvoltage cause；Rectification two
Pole pipe D1～D6 forms a three-phase uncontrollable rectifier bridge, completes AD-DC transformation of electrical energy, is supplied by described three-phase
The three-phase alternating voltage of electricity electrical network 31 is transformed to the DC pulse moving voltage of constant amplitude；Smoothing reactor L2 and
DC support electric capacity C1 forms a DC filter, is mainly used in suppressing the ripple of DC pulse moving voltage,
It addition, DC support electric capacity C1 can also absorb comes from the height of steady-state DC power module described in rear class simultaneously
Amplitude pulsating current, makes DC side busbar voltage fluctuation be maintained in allowed band.
Steady-state DC power module 33 uses Buck buck circuit topology, completes DC-DC transformation of electrical energy,
Direct current energy is provided to Magnet or coil load 36 within the ts time period of pulse steady-state process as shown in Figure 3,
Including IGBT Q1, sustained diode 7, output reactance device L3 and output filter capacitor C2；Buck cuts
The DC pulse moving voltage that described rectifier power supply module 32 converts can not only be adjusted to more to smooth by wave circuit
DC voltage, the DC voltage conversion of the constant amplitude that simultaneously described rectifier power supply module 32 can also be converted
For the DC voltage that amplitude is freely adjustable；When power work is in voltage source mode, gather output filtered electrical
The voltage at appearance C2 two ends, as closed loop feedback amount, controls the output voltage of described steady-state DC power module 33
Export by preset value；When power work is in current source mode, gathers and flow through on output reactance device L3
Electric current as closed loop feedback amount, controls described stable state straight through the filtered current component of output filter capacitor C2
The output electric current of stream power module 33 presses preset value output.
Pulse along adjustment module 34 in the rising edge of a pulse tr time period as shown in Figure 3 to Magnet or coil load
Release electric energy, the climbing speed of acceleration pulse rising edge, in the pulse falling edge tf time period as shown in Figure 3
Interior absorption Magnet or coil bear the electric energy containing release, the fall off rate of acceleration pulse trailing edge；Described pulse
Include along adjustment module 34: three-phase reactor L4, rectification IGBT Q6～Q11, serve as electrical switch
IGBT Q12 and storage capacitor C3；Wherein three-phase reactor L4 and rectification IGBT Q6～Q11
Form a Three-Phase PWM Rectifier, when the electric energy of storage capacitor C3 storage is not enough to maintain rising edge of a pulse
During required climbing speed, PWM rectifier works in rectification state, and electrical switch Q12 is off shape
State, power supply grid is charged to storage capacitor C3 by the inverse parallel fly-wheel diode of PWM rectifier and Q12；
During pulse falling edge, electrical switch Q12 is in opening state, Magnet or coil load when stable state
The electric energy of storage is charged to storage capacitor C3 by Q12, when the electric energy of load release exceedes storage capacitor C3
Rated capacity time, PWM rectifier works in inverter mode, by unnecessary electric energy feedback to power supply grid,
Ensure the security reliability of storage capacitor C3.
Inverting module 35 uses H bridge topological circuit, can be by the direct current of described steady-state DC power module 33
Output voltage is transformed to ac output voltage, it is possible to keep original VD；H bridge includes Q2～Q5
Four IGBT；When pipe Q2 and the conducting of lagging leg down tube Q4 on leading-bridge, Magnet or coil load
The voltage direction obtained on 36 is consistent, when in advance with described steady-state DC power module 33 output voltage direction
In brachium pontis down tube Q3 and lagging leg during pipe Q5 conducting, the voltage side that Magnet or coil load 36 obtain
To in opposite direction with described steady-state DC power module 33 output voltage；By periodically open shutoff Q2,
Q4 and Q3, Q5 can obtain positive and negative alternating voltage alternately on Magnet or coil load 36；When being not required to
During output AC voltage, by Q2, Q4 switch to or Q3, Q5 switch the most open-minded, still can at Magnet or
DC voltage is obtained on coil load 36.
The above, a kind of physical circuit way of realization of technical scheme the most proposed by the invention, but this
Bright protection domain is not limited thereto, and any those familiar with the art illustrates in the present invention
In technical scope, the change that can readily occur in or replacement, all should contain within protection scope of the present invention.
Claims (3)
1. highpowerpulse is along a time scalable power of alterating and direct current, mainly by rectifier power supply module (32), steady
State DC power supplier (33), pulse are along adjustment module (34), inverting module (35), Magnet or coil
Load (36) composition, wherein, pulse is used for controlling in rising edge of a pulse or decline along adjustment module (34)
Release energy to load along transient process or the energy of storage loads feedback simultaneously to therein energy
It is adjusted；Inverting module (35) is used for defeated for described steady-state DC power module when load is in stable state
The direct current energy gone out periodically commutates, and makes load Magnet or coil can obtain direct current energy and also can obtain
To AC energy；When load is in the transient process of rising edge of a pulse or trailing edge, it is used for controlling described arteries and veins
Rush along the direction of energy exchange between adjustment module and load；It is characterized in that, rectifier power supply module input
Being connected with three phase supply electrical network, outfan is connected with described steady-state DC power module input；Steady-state DC
Power module input is connected with described rectifier power supply module outfan, and outfan and described pulse are along regulation mould
Block outfan and described inverting module input connect；Pulse is along adjustment module input and three phase supply electricity
Net connects, and outfan connects with described steady-state DC power module outlet and described inverting module input
Connect；Inverting module input and described steady-state DC power module outlet and described pulse are along adjustment module
Outfan connects, and the outfan two ends of inverting module are connected with load two ends respectively.
The most according to claim 1, highpowerpulse is along time scalable power of alterating and direct current, it is characterised in that institute
State pulse to be made up of along adjustment module Three-Phase PWM Rectifier, electrical switch and storage capacitor；Described change
It is made up of the H bridging parallel operation of one or more groups parallel connection to module；H bridging parallel operation is by four electric current energy bidirectional flows
Dynamic full-control type power semiconductor composition.
The most according to claim 2, highpowerpulse is along time scalable power of alterating and direct current, it is characterised in that institute
State the IGBT that full-control type power semiconductor is band inverse parallel fly-wheel diode in H bridging parallel operation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410334766.3A CN104135166B (en) | 2014-07-14 | 2014-07-14 | AC/DC power supply having adjustable high-power pulse edge time |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410334766.3A CN104135166B (en) | 2014-07-14 | 2014-07-14 | AC/DC power supply having adjustable high-power pulse edge time |
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| CN104135166B true CN104135166B (en) | 2017-01-11 |
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Families Citing this family (2)
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| CN110611441B (en) * | 2019-09-10 | 2022-01-11 | 中国船舶工业集团公司第七0八研究所 | Improved generation pulse load power supply topological structure |
| CN113659864A (en) * | 2021-08-13 | 2021-11-16 | 四川英杰电气股份有限公司 | Multi-pulse output solid-state modulator circuit and control method thereof |
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| US6381155B1 (en) * | 2000-05-23 | 2002-04-30 | Next Power Corporation | Method for clusterized power sharing conversion and regulation of the primary power source within a converting and regulating power supply, and system |
| CN101499771A (en) * | 2008-01-28 | 2009-08-05 | 王玉富 | Frequency-changing speed-regulating driver for energy feedback three phase motor with three phase electric power |
| CN101807864A (en) * | 2010-03-25 | 2010-08-18 | 吉林大学 | Emission current subdivision control circuit based on magnetic source electromagnetic method |
| CN102510233A (en) * | 2011-10-13 | 2012-06-20 | 吉林大学 | Multifunctional current impulse transmitter and control method |
| CN204578389U (en) * | 2014-07-14 | 2015-08-19 | 西南交通大学 | Highpowerpulse is along time adjustable power of alterating and direct current |
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2014
- 2014-07-14 CN CN201410334766.3A patent/CN104135166B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6381155B1 (en) * | 2000-05-23 | 2002-04-30 | Next Power Corporation | Method for clusterized power sharing conversion and regulation of the primary power source within a converting and regulating power supply, and system |
| CN101499771A (en) * | 2008-01-28 | 2009-08-05 | 王玉富 | Frequency-changing speed-regulating driver for energy feedback three phase motor with three phase electric power |
| CN101807864A (en) * | 2010-03-25 | 2010-08-18 | 吉林大学 | Emission current subdivision control circuit based on magnetic source electromagnetic method |
| CN102510233A (en) * | 2011-10-13 | 2012-06-20 | 吉林大学 | Multifunctional current impulse transmitter and control method |
| CN204578389U (en) * | 2014-07-14 | 2015-08-19 | 西南交通大学 | Highpowerpulse is along time adjustable power of alterating and direct current |
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