CN105471252B - A kind of big decompression no-load voltage ratio harmonic current injection type three-phase power factor correcting circuit - Google Patents
A kind of big decompression no-load voltage ratio harmonic current injection type three-phase power factor correcting circuit Download PDFInfo
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- CN105471252B CN105471252B CN201610001626.3A CN201610001626A CN105471252B CN 105471252 B CN105471252 B CN 105471252B CN 201610001626 A CN201610001626 A CN 201610001626A CN 105471252 B CN105471252 B CN 105471252B
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4233—Arrangements for improving power factor of AC input using a bridge converter comprising active switches
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/219—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The present invention relates to a kind of big decompression no-load voltage ratio harmonic current injection type three-phase power factor correcting circuit, input phase current by a kind of three switch harmonic electric current injection networks, during to industrial frequency rectifying and compensated for the part in dead band, so as to realize the sinusoidal control of three-phase current.Switch switching in harmonic current injection network is not present the risk of input-voltage short circuit, and the change of current between injection branch bridge arm can realize seamlessly transitting for no dead band, further reduce input current abnormality；Insertion switch inductance network, form serial connection charge, the structure of parallel discharge；Controlled with reference to the switch of harmonic current injection network, realize large velocity ratio reduced output voltage.The present invention is without complicated vector controlled, as long as using DC/DC PWM control technologies, can realizes big decompression no-load voltage ratio while three-phase input current sineization is realized, it is easy to control to be easily achieved, the working range of dutycycle is not only widened, and conduction loss is advantageously reduced, easily realize sharing control during multi-machine parallel connection work.
Description
Technical field
The present invention relates to a kind of big decompression no-load voltage ratio harmonic current injection type three-phase power factor correcting circuit.
Background technology
Uncontrollable rectification or phase control rectifier in power electronic equipment can produce substantial amounts of harmonic current in net side, cause electricity
Source system availability is low, loss is big, influences the stable operation that the normal work of electrical equipment even jeopardizes whole power network, and harmonic wave is controlled
Reason increasingly obtains the attention of academia and national governments, has put into effect many harmonic limit standards and has carried out the humorous of specification electrical equipment
Ripple content.Such as standards such as IEC61000-3-2, GB17625.1, the Harmonic Current Limits of clear stipulaties electronic equipment, only meet
The electronic equipment of code requirement just allows to list.
The large power-consuming equipment of more than 5 kilowatts power electrical equipment generally use three phase supplies, caused harmonic pollution
Greatly, PFC（PFC）Technology does not obtain universal application but, be mostly derived from the development of three-phase PFC technologies not enough into
Ripe, system architecture and control are complicated in practical application, realize difficult.Most common three-phase pfc circuit structure is PWM rectifier,
Two major classes can be divided into：Voltage type PWM rectifier and current-type PWM converter.The former is boost type arrangement, and output voltage is more than three
The peak value of phase input line voltage, for domestic Ull=380V（European 400V）Commercial power, output DC voltage commonly reach 700
~800V；The 480V of north America region（Or 600V）Power is powered, and output voltage is higher.Current-type PWM converter is voltage-dropping type knot
Structure, output voltage, suitable for the application scenario of low pressure output.Occurred a kind of harmonic current injection in recent years
Type three-phase pfc circuit, if SWISS rectifiers are one of which buck configuration, but harmonic current injection network easily occur it is alternate
Short-circuit risks, and when low voltage exports, dutycycle is too small, is unfavorable for the optimization of system effectiveness.
The content of the invention
In view of this, it is an object of the invention to provide a kind of big decompression no-load voltage ratio harmonic current injection type three-phase activity coefficient
Correcting circuit, dutycycle is widened, three-phase PFC is realized under the conditions of larger decompression no-load voltage ratio.
To achieve the above object, the present invention adopts the following technical scheme that：A kind of big decompression no-load voltage ratio harmonic current injection type three
Phase circuit of power factor correction, it is characterised in that：Including three-phase alternating current input power Uin, three-phase commutation bridge DB1, power
MOSFET pipes S1, power MOSFET tube S2, harmonic current injection network, switched inductors network, output filter capacitor Cf and load
RL；The harmonic current injection network includes diode D1, diode D2, diode D3, diode D4, diode D5, two poles
Pipe D6, diode D9, diode D10, diode D11, diode D12, diode D13, diode D14, power MOSFET tube
Sy1, power MOSFET tube Sy2 and power MOSFET tube Sy3, the switched inductors network include diode D7, diode D8, electricity
Feel L1 and inductance L2；Three of the three-phase alternating current input power Uin input phase voltages three with three-phase commutation bridge DB1 respectively
Input connects, three of three-phase alternating current input power Uin input phase voltages also respectively with diode D9 negative electrode and two
Pole pipe D10 anode, the anode of diode D11 negative electrode and diode D12, diode D13 negative electrode and diode D14 sun
Pole connects；The positive output end of the three-phase commutation bridge DB1 is connected with power MOSFET tube S1 drain electrode, the three-phase commutation bridge
DB1 negative output terminal is connected with power MOSFET tube S2 source electrode；The source electrode of the power MOSFET tube S1 is with diode D1's
One end connection of negative electrode, diode D3 negative electrode, diode D5 negative electrode, diode D7 negative electrode and inductance L1；Diode D1
Anode be connected with diode D9 anode and power MOSFET tube Sy1 source electrode, diode D3 anode is with diode D11's
Anode and power MOSFET tube Sy2 source electrode connect, diode D5 anode and diode D13 anode and power MOSFET tube
Sy3 source electrode connection；The drain electrode of the power MOSFET tube S2 and diode D2 anode, diode D4 anode, diode
One end connection of D6 anode, diode D8 anode and inductance L2；Diode D2 negative electrode and diode D10 negative electrode and
MOSFET pipes Sy1 drain electrode connection, diode D4 negative electrode are connected with diode D12 negative electrode and MOSFET pipes Sy2 drain electrode,
Diode D6 negative electrode is connected with the drain electrode of diode D14 negative electrode and MOSFET pipes Sy3；The other end and two of the inductance L1
Pole pipe D8 negative electrode, output filter capacitor Cf positive pole and one end connection for loading RL；The other end of the inductance L2 and two poles
Pipe D7 anode, output filter capacitor Cf negative pole and the other end connection for loading RL.
Further, the power MOSFET tube S1, power MOSFET tube S2, power MOSFET tube Sy1, power MOSFET
Pipe Sy2 and power MOSFET tube Sy3 is IGBT power switch pipes.
Further, the diode D1, diode D2, diode D3, diode D4, diode D5, diode D6, two
Pole pipe D7 and diode D8 is fast recovery power diode.
Further, the mode of operation of the inductance L1 and inductance L2 are continuous current mode CCM, discontinuous current mode
DCM or critical current mode BCM.
Further, the output filter capacitor Cf is energy storage electrochemical capacitor.
The present invention has the advantages that compared with prior art：
1st, the harmonic current injection network of three switches of the invention can effectively reduce the risk of input power phase fault；
2nd, the present invention can be realized in the case of dutycycle identical so that output voltage is lower, realizes big decompression no-load voltage ratio
Work；
3rd, energy of the invention all once transmits, and switch tube voltage stress is small, inductance in parallel continuous current discharge electricity, conduction loss
It is small, be advantageous to improved efficiency；
4th, the present invention is without complicated vector controlled, as long as using DC/DC PWM control technologies, it is possible to realize that three-phase is defeated
Enter electric current positizing string, it is easy to accomplish.
Brief description of the drawings
Fig. 1 is the specific implementation circuit diagram of the present invention.
Fig. 2 is sequential of the drive signal with three-phase input power supply of the switching tube of the harmonic current injection network of the present invention
Figure.
Fig. 3 is voltage and current waveform of the present invention in steady operation.
Fig. 4 is equivalent circuit diagram of the present invention when 1. section works.
Fig. 5 is Fig. 4 simplified electrical circuit diagram.
Fig. 6 a are the current path figures in the stage 1 of the invention when 1. section works.
Fig. 6 b are the current path figures in the stage 2 of the invention when 1. section works.
Fig. 6 c are the current path figures in the stage 3 of the invention when 1. section works.
Fig. 6 d are the current path figures in the stage 4 of the invention when 1. section works.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention will be further described.
Fig. 1 is refer to, the present embodiment provides a kind of big decompression no-load voltage ratio harmonic current injection type three-phase activity coefficient adjustment electricity
Road, it is characterised in that：Including three-phase alternating current input power Uin, three-phase commutation bridge DB1, power MOSFET tube S1, power MOSFET
Pipe S2, harmonic current injection network, switched inductors network, output filter capacitor Cf and load RL；The harmonic current injection net
Network includes diode D1, diode D2, diode D3, diode D4, diode D5, diode D6, diode D9, diode
D10, diode D11, diode D12, diode D13, diode D14, power MOSFET tube Sy1, power MOSFET tube Sy2 and
Power MOSFET tube Sy3, the switched inductors network include diode D7, diode D8, inductance L1 and inductance L2；The three-phase
Alternating current input power supplying Uin three input phase voltages are connected with three-phase commutation bridge DB1 three inputs respectively, and described three is intersecting
Flow input power Uin three input phase voltages also respectively with diode D9 negative electrode and diode D10 anode, diode
D11 negative electrode connects with diode D12 anode, diode D13 negative electrode with diode D14 anode；The three phase rectifier
Bridge DB1 positive output end is connected with power MOSFET tube S1 drain electrode, the negative output terminal and power of the three-phase commutation bridge DB1
MOSFET pipes S2 source electrode connection；The source electrode of the power MOSFET tube S1 and diode D1 negative electrode, diode D3 negative electrode,
One end connection of diode D5 negative electrode, diode D7 negative electrode and inductance L1；Diode D1 anode and diode D9 sun
Pole and power MOSFET tube Sy1 source electrode connect, diode D3 anode and diode D11 anode and power MOSFET tube
Sy2 source electrode connection, diode D5 anode are connected with the source electrode of diode D13 anode and power MOSFET tube Sy3；It is described
Power MOSFET tube S2 drain electrode and diode D2 anode, diode D4 anode, diode D6 anode, diode D8
Anode and inductance L2 one end connect；The drain electrode of diode D2 negative electrode and diode D10 negative electrode and MOSFET pipes Sy1 connects
Connect, diode D4 negative electrode is connected with diode D12 negative electrode and MOSFET pipes Sy2 drain electrode, diode D6 negative electrode and two
The drain electrode connection of pole pipe D14 negative electrode and MOSFET pipes Sy3；The other end of the inductance L1 and diode D8 negative electrode, output
Filter capacitor Cf positive pole and one end connection for loading RL；The other end of the inductance L2 is filtered with diode D7 anode, output
Ripple electric capacity Cf negative pole and the other end connection for loading RL.
In the present embodiment, the power MOSFET tube S1, power MOSFET tube S2, power MOSFET tube Sy1, power
MOSFET pipes Sy2 and power MOSFET tube Sy3 is IGBT power switch pipes.
In the present embodiment, the diode D1, diode D2, diode D3, diode D4, diode D5, diode
D6, diode D7 and diode D8 are fast recovery power diodes.
In the present embodiment, the mode of operation of the inductance L1 and inductance L2 is continuous current mode CCM, inductive current breaks
Continuous DCM or critical current mode BCM.
In the present embodiment, the output filter capacitor Cf is energy storage electrochemical capacitor.
It is the drive signal and three-phase input power supply of the switching tube of the harmonic current injection network of the present invention as shown in Figure 2
Timing diagram.The control signal of three switching tubes Sy1, Sy2, Sy3 in harmonic injection network and three-phase input voltage instantaneous value
Relation, an AC mains cycle are divided into 6 sections, and each section is 60 °, exhausted with three-phase input voltage in each section
The minimum corresponding injection switching tube of value is worked, and drive signal is synchronous with the drive signal that duty in S1, S2 is bigger.Figure
3 voltage, the current waveform when being steady operation,u pY、u YnFor the piecewise combination of line voltage, similar to triangular wave.Following point
Analysis by section 1. exemplified by, the course of work of labor circuit.This section c phase voltages absolute value is minimum, in harmonic injection network
Switching tube Sy3 be on off state, Sy1, Sy2 are held off.The positive maximum of a phase voltages,u pN=u aN, b phase voltages are negative most
It is small,u nN=u bN.It can thus be appreciated thatu pn=u ab,u pY=uac,u Yn=u cb。
Referring to the drawings 4, power MOSFET tube S1, S2, Sy3 are in HF switch work, simple equivalent circuit such as Fig. 5 institutes
Show, arrow represents the reference positive direction of each state variable.S1, S2 control signal use trailing edge modulation, i.e., each switch periods rise
Begin the moment, at the same it is open-minded, and the switching tube in such harmonic injection network can realize zero current turning-on.
Stage 1：S1, S2 are turned on, equivalent circuit such as Fig. 6 a.Voltageu pn=u ab, the reverse-biased cut-off of D5, D6, D7, D8, inductance
L1, L2 serial connection charge,i s1=i L1=i L2=i s2,i y3=0,u L1=u L2=( u pn -U o)/2,u pnPower to the load.
Stage 2：S1, Sy3 are turned on, S2 shut-offs, equivalent circuit such as Fig. 6 b.Voltageu py=u ac, D6, Sy3, D13 conductings, D5,
The reverse-biased cut-off of D7, D8, ifu py>U o, theni LIncrease；Otherwise,i LReduce.i s1=i L1=i L2 =-i y3,u L1=u L2=( u py -U o)/
2。
Stage 3：S1 is turned off, S2, Sy3 conducting, equivalent circuit such as Fig. 6 c.Voltageu yn=u cb, D5, Sy3, D14 conductings, D6,
The reverse-biased cut-off of D7, D8, ifu yn>U o, theni LIncrease；Otherwise,i LReduce.i L1=i L2=i s2=i y3,u L1=u L2=( u yn-U o)/2。
Stage 4：S3, S4, Sy3 are simultaneously turned off, equivalent circuit such as Fig. 6 d.The reverse-biased cut-off of D5, D6, L1, L2 respectively by D7,
D8 parallel connection continuous current discharge electricities.
When power MOSFET tube S1 is turned on, power MOSFET tube S1 electric currentsi S1= i L；When S1 is turned off,i S1=0；Pass through control
S1 break-make can control S1 electric currentsi S1, nowi S1=i p=i a, therefore can be by controlling power MOSFET tube S1 break-make to makei aTrack a phase voltagesu a.Similarly, can be by controlling power MOSFET tube S2 break-make to makei bTrack b phase voltagesu b,-i S2=i n=i b.According to KCL,i c=i Y3= i S2- i S1=-( i a+ i b), during three-phase symmetrical, ifi a、i bTrack respective phase voltageu a、u b,
Theni cAlso phase voltage is trackedu c, so as to realize that three-phase input current tracks three-phase input voltage.
Working condition of the working condition in other sections with section 1. is similar, in terms of a complete power cycle, three-phase
Input current tracks three-phase input voltage.From figure 3, it can be seen thati pTrack three-phase commutation bridge positive output end and mains neutral line it
Between voltageu pN,i nTrack the voltage between three-phase commutation bridge negative output terminal and mains neutral lineu nN,i y=(i y1+i y2+i y3) be
The approximate triangular wave of three times supply frequency.
The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, it should all belong to the covering scope of the present invention.
Claims (5)
- A kind of 1. big decompression no-load voltage ratio harmonic current injection type three-phase power factor correcting circuit, it is characterised in that：It is intersecting including three Stream input power Uin, three-phase commutation bridge DB1, power MOSFET tube S1, power MOSFET tube S2, harmonic current injection network, open Close inductance network, output filter capacitor Cf and load RL；The harmonic current injection network include diode D1, diode D2, Diode D3, diode D4, diode D5, diode D6, diode D9, diode D10, diode D11, diode D12, two Pole pipe D13, diode D14, power MOSFET tube Sy1, power MOSFET tube Sy2 and power MOSFET tube Sy3, the switch electricity Sense network includes diode D7, diode D8, inductance L1 and inductance L2；Three inputs of the three-phase alternating current input power Uin Phase voltage is connected with three-phase commutation bridge DB1 three inputs respectively, three input phases of the three-phase alternating current input power Uin Voltage also respectively the negative electrode and diode D10 anode with diode D9, diode D11 negative electrode and diode D12 anode, Diode D13 negative electrode connects with diode D14 anode；The positive output end of the three-phase commutation bridge DB1 and power MOSFET Pipe S1 drain electrode connection, the negative output terminal of the three-phase commutation bridge DB1 are connected with power MOSFET tube S2 source electrode；The power MOSFET pipes S1 source electrode and diode D1 negative electrode, diode D3 negative electrode, diode D5 negative electrode, diode D7 negative electrode And inductance L1 one end connection；Diode D1 anode is connected with diode D9 anode and power MOSFET tube Sy1 source electrode, Diode D3 anode is connected with diode D11 anode and power MOSFET tube Sy2 source electrode, diode D5 anode and two The source electrode connection of pole pipe D13 anode and power MOSFET tube Sy3；The drain electrode of the power MOSFET tube S2 is with diode D2's One end connection of anode, diode D4 anode, diode D6 anode, diode D8 anode and inductance L2；Diode D2 Negative electrode be connected with the drain electrode of diode D10 negative electrode and MOSFET pipes Sy1, diode D4 negative electrode and diode D12 the moon Pole and MOSFET pipes Sy2 drain electrode connection, the drain electrode of diode D6 negative electrode and diode D14 negative electrode and MOSFET pipes Sy3 Connection；One end of the other end of the inductance L1 and diode D8 negative electrode, output filter capacitor Cf positive pole and load RL connects Connect；The other end of the other end of the inductance L2 and diode D7 anode, output filter capacitor Cf negative pole and load RL connects Connect.
- 2. big decompression no-load voltage ratio harmonic current injection type three-phase power factor correcting circuit according to claim 1, its feature It is：The power MOSFET tube S1, power MOSFET tube S2, power MOSFET tube Sy1, power MOSFET tube Sy2 and power MOSFET pipes Sy3 is IGBT power switch pipes.
- 3. big decompression no-load voltage ratio harmonic current injection type three-phase power factor correcting circuit according to claim 1, its feature It is：The diode D1, diode D2, diode D3, diode D4, diode D5, diode D6, diode D7 and two poles Pipe D8 is fast recovery power diode.
- 4. big decompression no-load voltage ratio harmonic current injection type three-phase power factor correcting circuit according to claim 1, its feature It is：The mode of operation of the inductance L1 and inductance L2 are continuous current mode CCM, discontinuous current mode DCM or inductive current Critical BCM.
- 5. big decompression no-load voltage ratio harmonic current injection type three-phase power factor correcting circuit according to claim 1, its feature It is：The output filter capacitor Cf is energy storage electrochemical capacitor.
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| CN108462384A (en) * | 2018-06-09 | 2018-08-28 | 南昌航空大学 | A kind of three-phase step-down type PFC rectification circuits |
| CN110299859A (en) * | 2019-07-11 | 2019-10-01 | 哈尔滨理工大学 | A kind of Three phase voltage-source recitifier |
| CN110518817A (en) * | 2019-10-09 | 2019-11-29 | 哈尔滨理工大学 | A kind of improved three-phase mixed-rectification device based on crisscross parallel |
| CN110829826A (en) * | 2019-12-03 | 2020-02-21 | 哈尔滨理工大学 | Buck three-phase power factor correction circuit with large direct-current voltage gain |
| CN110768527A (en) * | 2019-12-03 | 2020-02-07 | 哈尔滨理工大学 | Large-transformation-ratio Buck three-phase PFC circuit based on secondary Buck converter |
| CN110739872A (en) * | 2019-12-05 | 2020-01-31 | 哈尔滨理工大学 | novel bidirectional high-transformation-ratio SWISS rectifier |
| CN112187087B (en) * | 2020-09-09 | 2021-10-08 | 三峡大学 | Expandable multi-level rectifier |
| CN112532101A (en) * | 2020-12-17 | 2021-03-19 | 哈尔滨理工大学 | Novel two-way high transformation ratio VIENNA rectifier |
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| US6949915B2 (en) * | 2003-07-24 | 2005-09-27 | Harman International Industries, Incorporated | Opposed current converter power factor correcting power supply |
| CN100530923C (en) * | 2006-12-31 | 2009-08-19 | 南京航空航天大学 | Single-phase and triple-phase impedance source booster and step-down DC/DC converter |
| CN101582633B (en) * | 2008-05-14 | 2011-09-14 | 台达电子工业股份有限公司 | Three-phase boosting and deboosting power factor correction circuit and control method thereof |
| CN102694460B (en) * | 2011-03-24 | 2014-12-17 | 南京博兰得电子科技有限公司 | Three-phase boost-buck PFC converter |
| CN103618444B (en) * | 2013-11-15 | 2017-01-04 | 南京航空航天大学 | The two-tube booster converter of three winding coupling inductance ZVS/ZCS |
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