CN105846696B - A kind of two-stage type AC-DC converter and its control method - Google Patents

A kind of two-stage type AC-DC converter and its control method Download PDF

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CN105846696B
CN105846696B CN201610164808.2A CN201610164808A CN105846696B CN 105846696 B CN105846696 B CN 105846696B CN 201610164808 A CN201610164808 A CN 201610164808A CN 105846696 B CN105846696 B CN 105846696B
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output
switch pipe
diode
filter capacitor
anode
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CN105846696A (en
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吴红飞
韩蒙
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Nanjing University of Aeronautics and Astronautics
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Nanjing University of Aeronautics and Astronautics
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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
    • 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
    • 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
    • H02M1/4241—Arrangements for improving power factor of AC input using a resonant converter
    • 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
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/008—Plural converter units for generating at two or more independent and non-parallel outputs, e.g. systems with plural point of load switching regulators
    • 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
    • H02M1/0083—Converters characterised by their input or output configuration
    • H02M1/009—Converters characterised by their input or output configuration having two or more independently controlled outputs
    • 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 invention discloses a kind of two-stage type AC DC converters and its control methods, belong to converters technical field.The two-stage type AC DC converters are made of dual output pfc converter and two DCX circuits, the dual output pfc converter provides the high voltage direct current output of voltage constant and the low-voltage direct of voltage variable exports, high voltage direct current exports and low-voltage direct exports the input for being used separately as two DCX circuits, and the output series connection of two DCX circuits is simultaneously connected with load.The wide cut that the present invention is directly realized by load side voltage using the low-voltage direct output of the voltage variable of dual output pfc converter is adjusted, it not only reduces the power attenuation of pfc converter and efficient DCX circuits may be used in rear class, whole efficiency can be substantially improved, it is particularly suitable for the AC DC transformation of electrical energy occasion of load voltage significantly change, there is significant application value and application prospect in fields such as electric vehicle charging, energy storage.

Description

A kind of two-stage type AC-DC converter and its control method
Technical field
The present invention relates to a kind of two-stage type AC-DC converter and its control methods, belong to converters technology neck Domain especially belongs to AC-DC transformation of electrical energy technical field.
Background technology
With the extensive use of power electronic equipment, the harmonic current in power grid is increasing, to power grid in itself and other Electrical equipment brings a series of harm, and such as relay protection and the malfunction of automatic device, the mistake of instrument and meter measures；Harmonic wave is also Added losses can be caused, cause transformer fever, cable aging etc..For this purpose, national governments and international body formulated it is mandatory Standard, such as IEC 61000-302 Class D, to limit the Harmonics of Input of converter and power factor.Two-stage type AC-DC Converter is good with its input current shaping effect, high reliability Switching Power Supply, uninterrupted power supply, accumulator charging, It is widely applied in the technical fields such as telecommunication system power supply and hybrid vehicle.
The prime of traditional two-stage type AC-DC converter generally uses Boost circuit as pfc converter, in order to realize Adjusting in the entire input voltage period to input current, the output voltage of Boost circuit necessarily are greater than input ac voltage Peak value.In order to adapt to the application demand of wide output voltage range and voltage isolation, the rear class of Boost pfc converters also needs to adopt Further transformation is done to the output voltage of pfc converter with the DC-DC converter of level-one isolated form to adapt to the need of load supplying It asks.Although traditional two-stage type AC-DC converter is widely used in industrial quarters, there is also following shortcomings：(1) due in Between DC bus-bar voltage it is higher ranked, the power device of prime pfc converter and rear class DC-DC converter will all bear higher Voltage stress, and the larger switch for thus leading to converter of voltage change at switching device both ends damages during due to switch motion Consumption is also larger.(2) the AC ripple power of converter input all will pass through pfc converter and DC-DC converter carries out two-stage type Transformation, leads to the energy consumption of system to increase, so as to reduce the whole efficiency of converter.(3) answering in the variation of load voltage wide scope With occasion, rear class DC-DC converter must use the converter with wide gain, and the design difficulty of this quasi-converter usually compared with Optimization that is big and being difficult to realize entire gain ranging internal efficiency.
To solve the above-mentioned problems, domestic and foreign scholars propose many solutions, such as using soft switch technique, more level Converter, single stage type pfc converter etc..For example, document " Chen H, Liao J.Modified Interleaved Current Sensorless Control for Three-Level Boost PFC Converter with Considering Voltage Imbalance and Zero-Crossing Current Distortion[J].IEEE Transactions On Industrial Electronics, 2015,62 (11)：1-1. " uses three level Boost pfc circuits with Lifting Transform The working performance of device.Document " P.Das, M.Pahlevaninezhad, G.Moschopoulos.Analysis and Design of a New AC-DC Single-Stage Full-Bridge PWM Converter With Two Controllers [J] .IEEE Transactions on Industrial Electronics2013,60 (11)：4930-4946. " is using complete Bridging parallel operation realizes Single Stage PFC Converter, and the function that PFC and output voltage are adjusted is realized simultaneously using only one-stage transfor-mation device, but It is that Single Stage PFC Converter either sacrifices power factor regulation ability or the voltage stress of device can be significantly increased, it is final The effect of realization has no much improvement compared to two-stage type pfc converter.The pulsating power that above-mentioned solution inputs converter Still by the way of being uniformly processed, and due to a wide range of cyclic fluctuation of input ac voltage, the mode of being uniformly processed can not be real The now power optimization of entire input voltage range.
Invention content
The purpose of the present invention is in view of the deficiencies of the prior art, a kind of novelty is provided for AC-DC transformation of electrical energy occasion Effective two-stage type AC-DC converter and its control method.
The purpose of the present invention is achieved through the following technical solutions：
The two-stage type AC-DC converter is by single phase alternating current power supply (vAC) or three-phase alternating-current supply (vABC), dual output PFC Converter, the first DCX circuits (DCX-1), the 2nd DCX circuits (DCX-2) and load (Ro) composition, wherein dual output PFC transformation Device includes an ac voltage input, high voltage direct current output (vH) and low-voltage direct output (vL)；The single phase alternating current power supply (vAC) or three-phase alternating-current supply (vABC) connection dual output pfc converter ac voltage input, dual output pfc converter High voltage direct current exports (vH) connection the first DCX circuits (DCX-1) input terminal, dual output pfc converter low-voltage direct output (vL) connection the 2nd DCX circuits (DCX-2) input terminal, the output (v of the first DCX circuits (DCX-1)o1) and the 2nd DCX circuits (DCX-2) output (vo2) connection load (R after series connectiono) both ends.
The control method of the two-stage type AC-DC converter is the high voltage direct current output (v of dual output pfc converterH) (v is exported with low-voltage directL) voltage controlled by dual output pfc converter, the output of the high voltage direct current of dual output pfc converter (vH) voltages keep constant and be consistently greater than be equal to single phase alternating current power supply (vAC) or three-phase alternating-current supply (vABC) line voltage peak Value, the low-voltage direct output (v of dual output pfc converterL) voltage variable, and dual output pfc converter is by adjusting low pressure Direct current output (vL) voltage carry out steady load (Ro) both ends voltage (vo), the output (v of the first DCX circuits (DCX-1)o1) begin Eventually (v is exported with the high voltage direct current of dual output pfc converterH) voltage remain fixed ratio, the 2nd DCX circuits (DCX-2) Export (vo2) always (v is exported with the low-voltage direct of dual output pfc converterL) voltage remain fixed ratio.In order to realize this A purpose, the first DCX circuits (DCX-1) and the 2nd DCX circuits (DCX-2) have any one in following topological structures Kind：Series resonant circuit, antiresonant circuit, half-bridge logical link control (LLC) resonant circuit, full-bridge LLC resonance circuits and phase whole-bridging circuit.
The dual output Single-phase PFC converter is using any one in following ten kinds of schemes.
Scheme one：The dual output pfc converter is by rectifier bridge, boost inductance (Lb), first switch pipe (S1), second open Close pipe (S2), the first diode (D1), the second diode (D2), the first output filter capacitor (C1) and the second output filter capacitor (C2) composition；
The ac voltage input of the rectifier bridge and single phase alternating current power supply (vAC) be connected, rectifier bridge output voltage (vDC) Anode be connected in boost inductance (Lb) one end, boost inductance (Lb) the other end be connected in second switch pipe (S2) drain electrode and Two diode (D2) anode, the second diode (D2) cathode be connected in the second output filter capacitor (C2) one end, i.e. high straightening Stream output (vH) anode, second switch pipe (S2) source electrode be connected in first switch pipe (S1) drain electrode, the first output filter capacitor (C1) one end, i.e. low-voltage direct output (vL) anode and the second output filter capacitor (C2) the other end, first switch pipe (S1) source electrode be connected in rectifier bridge output voltage (vDC) negative terminal and the first diode (D1) cathode, the first diode (D1) Anode is connected in the first output filter capacitor (C1) the other end, i.e. high voltage direct current output (vH) and low-voltage direct output (vL) public affairs Negative terminal altogether.
Scheme two：The dual output pfc converter is by rectifier bridge, boost inductance (Lb), first switch pipe (S1), second open Close pipe (S2), the first diode (D1), the second diode (D2), the first output filter capacitor (C1) and the second output filter capacitor (C2) composition；
The ac voltage input of the rectifier bridge and single phase alternating current power supply (vAC) be connected, rectifier bridge output voltage (vDC) Anode be connected in boost inductance (Lb) one end, boost inductance (Lb) the other end be connected in second switch pipe (S2) drain electrode and Two diode (D2) anode, the second diode (D2) cathode be connected in the second output filter capacitor (C2) one end, i.e. high straightening Stream output (vH) anode, second switch pipe (S2) source electrode be connected in first switch pipe (S1) drain electrode and the first diode (D1) Anode, the first diode (D1) cathode be connected in the first output filter capacitor (C1) one end, i.e. low-voltage direct output (vL) Anode, first switch pipe (S1) source electrode be connected in the first output filter capacitor (C1) the other end, i.e. low-voltage direct output (vL) Negative terminal, the second output filter capacitor (C2) the other end, i.e. high voltage direct current output (vH) negative terminal and rectifier bridge output voltage (vDC) Negative terminal.
Scheme three：The dual output pfc converter is by rectifier bridge, boost inductance (Lb), first switch pipe (S1), second open Close pipe (S2), the first diode (D1), the second diode (D2), the first output filter capacitor (C1) and the second output filter capacitor (C2) composition；
The ac voltage input of the rectifier bridge and single phase alternating current power supply (vAC) be connected, rectifier bridge output voltage (vDC) Anode be connected in boost inductance (Lb) one end, boost inductance (Lb) the other end be connected in first switch pipe (S1) drain electrode, first Diode (D1) anode and the second diode (D2) anode, the second diode (D2) cathode be connected in the second output filtered electrical Hold (C2) one end, i.e. high voltage direct current output (vH) anode, the first diode (D1) cathode be connected in second switch pipe (S2) Drain electrode, second switch pipe (S2) source electrode be connected in the first output filter capacitor (C1) one end, i.e. low-voltage direct output (vL) just End and the second output filter capacitor (C2) the other end, first switch pipe (S1) source electrode be connected in the first output filter capacitor (C1) The other end, i.e. high voltage direct current output (vH) and low-voltage direct output (vL) public negative terminal and rectifier bridge output voltage (vDC) Negative terminal.
Scheme four：The dual output pfc converter is by boost inductance (Lb), first switch pipe (S1), second switch pipe (S2), third switching tube (S3), the first diode (D1), the second diode (D2), third diode (D3), first output filtered electrical Hold (C1) and the second output filter capacitor (C2) composition；
Boost inductance (the Lb) one end be connected in single phase alternating current power supply (vAC) one end, boost inductance (Lb) the other end It is connected in first switch pipe (S1) drain electrode and second switch pipe (S2) source electrode, second switch pipe (S2) drain electrode be connected in the two or two Pole pipe (D2) cathode, third diode (D3) anode and third switching tube (S3) drain electrode, third switching tube (S3) source electrode It is connected in the first output filter capacitor (C1) one end, i.e. low-voltage direct output (vL) anode, third diode (D3) cathode connect In the second output filter capacitor (C2) one end, i.e. high voltage direct current output (vH) anode, first switch pipe (S1) source electrode be connected in First output filter capacitor (C1) the other end, i.e. low-voltage direct output (vL) negative terminal, the second output filter capacitor (C2) it is another One end, i.e. high voltage direct current output (vH) negative terminal and the first diode (D1) anode, the first diode (D1) cathode be connected in Two diode (D2) anode and single phase alternating current power supply (vAC) the other end.
Scheme five：The dual output pfc converter is by boost inductance (Lb), first switch pipe (S1), second switch pipe (S2), third switching tube (S3), the first diode (D1), the second diode (D2), third diode (D3), the 4th diode (D4), the first output filter capacitor (C1) and the second output filter capacitor (C2) composition；
Boost inductance (the Lb) one end be connected in single phase alternating current power supply (vAC) one end, boost inductance (Lb) the other end It is connected in first switch pipe (S1) drain electrode, second switch pipe (S2) source electrode and the 4th diode (D4) anode, second switch pipe (S2) drain electrode be connected in the second diode (D2) cathode and the second output filter capacitor (C2) one end, i.e. high voltage direct current export (vH) anode, the 4th diode (D4) cathode be connected in third diode (D3) cathode and third switching tube (S3) drain electrode, Third switching tube (S3) source electrode be connected in the first output filter capacitor (C1) one end, i.e. low-voltage direct output (vL) anode, One switching tube (S1) source electrode be connected in the first output filter capacitor (C1) the other end, i.e. low-voltage direct output (vL) negative terminal, Two output filter capacitor (C2) the other end, i.e. high voltage direct current output (vH) negative terminal and the first diode (D1) anode, first Diode (D1) cathode be connected in the second diode (D2) anode, third diode (D3) anode and single phase alternating current power supply (vAC) the other end.
Scheme six：The dual output pfc converter is by the first boost inductance (Lb1), the second boost inductance (Lb2), first open Close pipe (S1), second switch pipe (S2), third switching tube (S3), the first diode (D1), the second diode (D2), third diode (D3), the 4th diode (D4), the 5th diode (D5), the first output filter capacitor (C1) and the second output filter capacitor (C2) group Into；
First boost inductance (the Lb1) one end be connected in first switch pipe (S1) drain electrode and third diode (D3) Anode, the second boost inductance (Lb2) one end be connected in second switch pipe (S2) drain electrode and the 4th diode (D4) anode, Four diode (D4) cathode be connected in third diode (D3) cathode, the 5th diode (D5) anode and third switching tube (S3) drain electrode, third switching tube (S3) source electrode be connected in the first output filter capacitor (C1) one end, i.e. low-voltage direct export (vL) anode, the 5th diode (D5) cathode be connected in the second output filter capacitor (C2) one end, i.e. high voltage direct current export (vH) anode, the second output filter capacitor (C2) the other end, i.e. high voltage direct current output (vH) negative terminal be connected in the first output filter Wave capacitance (C1) the other end, i.e. low-voltage direct output (vL) negative terminal, first switch pipe (S1) source electrode, second switch pipe (S2) source electrode, the first diode (D1) anode and the second diode (D2) anode, the second diode (D2) cathode be connected in First boost inductance (Lb1) the other end and single phase alternating current power supply (vAC) one end, single phase alternating current power supply (vAC) the other end connect In the second boost inductance (Lb2) the other end and the first diode (D1) cathode.
Scheme seven：
The dual output pfc converter is by the first boost inductance (Lb1), the second boost inductance (Lb2), first switch pipe (S1), second switch pipe (S2), third switching tube (S3), the 4th switching tube (S4), the first diode (D1), the second diode (D2), third diode (D3), the 4th diode (D4), the 5th diode (D5), the 6th diode (D6), first output filtered electrical Hold (C1) and the second output filter capacitor (C2) composition；
First boost inductance (the Lb1) one end be connected in first switch pipe (S1) drain electrode and the 5th diode (D5) Anode, the second boost inductance (Lb2) one end be connected in third switching tube (S3) drain electrode and the 6th diode (D6) anode, One switching tube (S1) source electrode be connected in third diode (D3) anode and second switch pipe (S2) drain electrode, third switching tube (S3) source electrode be connected in the 4th switching tube (D4) anode and the 4th switching tube (S4) drain electrode, the 5th diode (D5) cathode It is connected in the 6th diode (D6) cathode and the second output filter capacitor (C2) one end, i.e. high voltage direct current output (vH) anode, Third diode (D3) cathode be connected in the 4th diode (D4) cathode and the first output filter capacitor (C1) one end, i.e. low Press direct current output (vL) anode, the first output filter capacitor (C1) the other end, i.e. low-voltage dc voltage output (vL) negative terminal It is connected in the second output filter capacitor (C2) the other end, i.e. high voltage direct current output (vH) negative terminal, second switch pipe (S2) source Pole, the 4th switching tube (S4) source electrode, the first diode (D1) anode and the second diode (D2) anode, the second diode (D2) cathode be connected in the first boost inductance (Lb1) the other end and single phase alternating current power supply (vAC) one end, single phase alternating current power supply (vAC) the other end be connected in the second boost inductance (Lb2) the other end and the first diode (D1) cathode.
Scheme eight：The dual output pfc converter is by boost inductance (Lb), first switch pipe (S1), second switch pipe (S2), third switching tube (S3), the first diode (D1), the second diode (D2), third diode (D3), first output filtered electrical Hold (C1) and the second output filter capacitor (C2) composition；
Boost inductance (the Lb) one end be connected in first switch pipe (S1) drain electrode and the first diode (D1) anode, First diode (D1) cathode be connected in the second diode (D2) cathode, third switching tube (S3) drain electrode and third diode (D3) anode, third diode (D3) cathode be connected in the second output filter capacitor (C2) one end, i.e. high voltage direct current export (vH) anode, third switching tube (S3) source electrode be connected in the first output filter capacitor (C1) one end, i.e. low-voltage direct export (vL) anode and the second output filter capacitor (C2) the other end, the first output filter capacitor (C1) the other end, i.e. high straightening Stream output (vH) and low-voltage direct output (vL) public negative terminal be connected in first switch pipe (S1) source electrode and second switch pipe (S2) Source electrode, second switch pipe (S2) drain electrode be connected in the second diode (D2) anode and single phase alternating current power supply (vAC) one end, Single phase alternating current power supply (vAC) the other end be connected in boost inductance (Lb) the other end.
Scheme nine：The dual output pfc converter is by the first boost inductance (Lb1), the second boost inductance (Lb2), first open Close pipe (S1), second switch pipe (S2), third switching tube (S3), the 4th switching tube (S4), the first low tension switch pipe (SL1), second Low tension switch pipe (SL2), third low tension switch pipe (SL3), the 4th low tension switch pipe (SL4), the first output filter capacitor (C1) and Second output filter capacitor (C2) composition；
First boost inductance (the Lb1) one end be connected in third switching tube (S3) source electrode, the 4th switching tube (S4) leakage Pole and the first low tension switch pipe (SL1) source electrode, the second boost inductance (Lb2) one end be connected in second switch pipe (S2) drain electrode, First switch pipe (S1) source electrode and third low tension switch pipe (SL3) source electrode, first switch pipe (S1) drain electrode be connected in third and open Close pipe (S3) drain electrode and the second output filter capacitor (C2) one end, i.e. high voltage direct current output (vH) anode, the first low pressure opens Close pipe (SL1) drain electrode be connected in the second low tension switch pipe (SL2) drain electrode, third low tension switch pipe (SL3) drain electrode to be connected in the 4th low Compress switch pipe (SL4) drain electrode, the 4th low tension switch pipe (SL4) source electrode be connected in the second low tension switch pipe (SL2) source electrode and One output filter capacitor (C1) one end, i.e. low-voltage dc voltage output (vL) anode, the first output filter capacitor (C1) it is another One end, i.e. low-voltage direct output (vL) negative terminal be connected in the second output filter capacitor (C2) the other end, i.e. high voltage direct current export (vH) negative terminal, second switch pipe (S2) source electrode and the 4th switching tube (S4) source electrode, single phase alternating current power supply (vAC) one end connect In the first boost inductance (Lb1) the other end, single phase alternating current power supply (vAC) the other end be connected in the second boost inductance (Lb2) it is another One end.
Scheme ten：The dual output pfc converter is by A phase boost inductances (LA), B phase boost inductances (LB), C phases boost electricity Feel (LC), first switch pipe (S1), second switch pipe (S2), third switching tube (S3), the 4th switching tube (S4), the 5th switching tube (S5), the 6th switching tube (S6), the first low tension switch pipe (SL1), the second low tension switch pipe (SL2), third low tension switch pipe (SL3)、 4th low tension switch pipe (SL4), the 5th low tension switch pipe (SL5), the 6th low tension switch pipe (SL6), the first output filter capacitor (C1) and the second output filter capacitor (C2) composition；
Three-phase alternating-current supply (the vABC) m ends be connected in A phase boost inductances (LA) one end, three-phase alternating-current supply (vABC) N ends be connected in B phase boost inductances (LB) one end, three-phase alternating-current supply (vABC) p ends be connected in C phase boost inductances (LC) one End, A phase boost inductances (LA) the other end be connected in the 5th switching tube (S5) source electrode, the 6th switching tube (S6) drain electrode and first Low tension switch pipe (SL1) source electrode, B phase boost inductances (LB) the other end be connected in third switching tube (S3) source electrode, the 4th switch Manage (S4) drain electrode and third low tension switch pipe (SL3) source electrode, C phase boost inductances (LC) the other end be connected in first switch pipe (S1) source electrode, second switch pipe (S2) drain electrode and the 5th low tension switch pipe (SL5) source electrode, first switch pipe (S1) drain electrode It is connected in third switching tube (S3) drain electrode, the 5th switching tube (S5) drain electrode and the second output filter capacitor (C2) one end, i.e. high Press direct current output (vH) anode, the first low tension switch pipe (SL1) drain electrode be connected in the second low tension switch pipe (SL2) drain electrode, Three low tension switch pipe (SL3) drain electrode be connected in the 4th low tension switch pipe (SL4) drain electrode, the 5th low tension switch pipe (SL5) drain electrode It is connected in the 6th low tension switch pipe (SL6) drain electrode, the 6th low tension switch pipe (SL6) source electrode be connected in the 4th low tension switch pipe (SL4) Source electrode, the second low tension switch pipe (SL2) source electrode and the first output filter capacitor (C1) one end, i.e. low-voltage direct export (vL) anode, the first output filter capacitor (C1) the other end, i.e. low-voltage direct output (vL) negative terminal be connected in the second output filter Wave capacitance (C2) the other end, i.e. high voltage direct current output (vH) negative terminal, the 6th switching tube (S6) source electrode, the 4th switching tube (S4) source electrode and second switch pipe (S2) source electrode.
The essential distinction of technical solution of the present invention and existing technical solution is, is carried simultaneously using dual output pfc converter For two power flows and the high voltage direct current output of voltage constant and the low-voltage direct output of voltage variable are provided, and two-way is straight Stream voltage output is all connected with efficient DCX circuits, and the output series connection of two-way DCX circuits provides energy for load.It is loading The application scenario of voltage wide range variation, high pressure port is used for providing changeless load voltage, and low-pressure port is used in fact The adjusting of existing load voltage wide scope, being widely varied and then power damage can be reduced so as to avoid late-class circuit gain Consumption, is substantially improved whole efficiency.
Advantageous effect：
(1) dual output pfc converter can provide two power flows for ac input power, it is possible thereby to defeated to high pressure Enter the corresponding power with low pressure input and processing is separately optimized, substantially reduce the power attenuation of pfc converter, improve efficiency；
(2) dual output pfc converter can effectively reduce the voltage stress of switching device, while provide for filter inductance more Kind of level, voltage change when reducing switch motion reduce switching loss, be conducive to reduce the volume of wave filter, reduce loss, Improve efficiency；
(3) rear class DC converter need not have voltage regulation capability, and whole power are directly over efficient DCX circuits Processing, DCX can always work in best efficiency point, so as to substantially reduce the power loss of DC converting level-one, improve Efficiency；
(4) it is exported by the low-voltage direct of the output of the high voltage direct current of dual output pfc converter voltage constant and voltage variable, Load both end voltage wide scope high efficiency can be directly realized by adjust, be particularly suitable for the application of output DC voltage wide scope variation Occasion.
Description of the drawings
Attached drawing 1 is two-stage type Single-phase AC-DC converters system construction drawing of the present invention；
Attached drawing 2 is two-stage type three-phase AC-DC converter system construction drawing of the present invention；
Attached drawing 3 is the schematic diagram of dual output pfc converter implementation one of the present invention；
Attached drawing 4 is the schematic diagram of dual output pfc converter implementation two of the present invention；
Attached drawing 5 is the schematic diagram of dual output pfc converter implementation three of the present invention；
Attached drawing 6 is the schematic diagram of dual output pfc converter implementation four of the present invention；
Attached drawing 7 is the schematic diagram of dual output pfc converter implementation five of the present invention；
Attached drawing 8 is the schematic diagram of dual output pfc converter implementation six of the present invention；
Attached drawing 9 is the schematic diagram of dual output pfc converter implementation seven of the present invention；
Attached drawing 10 is the schematic diagram of dual output pfc converter implementation eight of the present invention；
Attached drawing 11 is the schematic diagram of dual output pfc converter implementation nine of the present invention；
Attached drawing 12 is the schematic diagram of dual output pfc converter implementation ten of the present invention；
Attached drawing 13 is the specific embodiment of two-stage type AC-DC converter of the present invention；
Designation in the figures above：DCX-1 and DCX-2 is respectively the first and second DCX circuits, vACFor single phase ac Power supply；vABCFor three-phase alternating-current supply；M, n and p are respectively three-phase alternating-current supply (vABC) m ends, n ends and p ends；vDCFor rectifier bridge Output voltage；vHAnd vLThe respectively high pressure of dual output pfc converter and low-voltage direct output；LbFor boost inductance, Lb1With Lb2Respectively the first and second boost inductances；LA, LBAnd LCRespectively A phases, B phases and C phase boost inductances；S1、S2、S3、S4、S5With S6The switching tube of respectively first, second, third, fourth, the 5th and the 6th；SL1、SL2、SL3、SL4、SL5And SL6Respectively first, Second, third, fourth, fifth and the 6th low tension switch pipe；D1、D2、D3、D4、D5And D6Respectively first, second, third, 4th, the 5th and the 6th diode；C1And C2Respectively the first and second output filter capacitors；RoFor load；vo1For the first DCX electricity The output voltage on road (DCX-1)；vo2Output voltage for the 2nd DCX circuits (DCX-2)；voTo load (Ro) both end voltage；SP1、 SP2、SP3、SP4、SP5And SP6For switching tube；DS1、DS2、DS3、DS4、DS5、DS6、DS7And DS8For diode；T1For LLC resonant full bridges Transformer；T2For LLC resonance oscillation semi-bridge transformers；NP1And NS1Respectively LLC resonant full bridges transformer (T1) primary side winding and pair Side umber of turn；NP2And NS2Respectively LLC resonance oscillation semi-bridges transformer (T2) primary side winding and the vice-side winding number of turn；Lr1And Lr2 Respectively the first and second resonant inductances；Cr1, Cr2Respectively the first and second resonant capacitances；Lm1And Lm2Respectively first and Two magnetizing inductances；Co1And Co2For capacitance；iDCInput current for dual output pfc converter；
Specific embodiment
Technical scheme of the present invention is described in detail below in conjunction with the accompanying drawings.
As shown in Figure 1, the two-stage type AC-DC converter is by single phase alternating current power supply (vAC), dual output pfc converter, First DCX circuits (DCX-1), the 2nd DCX circuits (DCX-2) and load (Ro) form, wherein dual output pfc converter includes one A ac voltage input, high voltage direct current output (vH) and low-voltage direct output (vL)；
Single phase alternating current power supply (the vAC) connection dual output pfc converter ac voltage input, dual output PFC transformation High voltage direct current output (the v of deviceH) connection the first DCX circuits (DCX-1) input terminal, the low-voltage direct of dual output pfc converter Export (vL) connection the 2nd DCX circuits (DCX-2) input terminal, the output (v of the first DCX circuits (DCX-1)o1) and the 2nd DCX Output (the v of circuit (DCX-2)o2) connection load (R after series connectiono) both ends.
As shown in Figure 2, the two-stage type AC-DC converter is by three-phase alternating-current supply (vABC), dual output pfc converter, First DCX circuits (DCX-1), the 2nd DCX circuits (DCX-2) and load (Ro) composition, wherein three-phase alternating-current supply (vABC) include M ends, n ends and p ends, dual output pfc converter include an ac voltage input, high voltage direct current output (vH) and low-voltage direct Export (vL)；
Three-phase alternating-current supply (the vABC) connection dual output pfc converter ac voltage input, dual output PFC become High voltage direct current output (the v of parallel operationH) connection the first DCX circuits (DCX-1) input terminal, the low-pressure direct of dual output pfc converter Stream output (vL) connection the 2nd DCX circuits (DCX-2) input terminal, the output (v of the first DCX circuits (DCX-1)o1) and second Output (the v of DCX circuits (DCX-2)o2) connection load (R after series connectiono) both ends.
In the present invention, appointing in following ten kinds of implementations may be used in the dual output pfc converter topological structure Meaning is a kind of.
The circuit diagram of implementation one is as shown in Figure 3：The dual output pfc converter is by rectifier bridge, boosting electricity Feel (Lb), first switch pipe (S1), second switch pipe (S2), the first diode (D1), the second diode (D2), first output filtering Capacitance (C1) and the second output filter capacitor (C2) composition；
The ac voltage input of the rectifier bridge and single phase alternating current power supply (vAC) be connected, rectifier bridge output voltage (vDC) Anode be connected in boost inductance (Lb) one end, boost inductance (Lb) the other end be connected in second switch pipe (S2) drain electrode and Two diode (D2) anode, the second diode (D2) cathode be connected in the second output filter capacitor (C2) one end, i.e. high straightening Stream output (vH) anode, second switch pipe (S2) source electrode be connected in first switch pipe (S1) drain electrode, the first output filter capacitor (C1) one end, i.e. low-voltage direct output (vL) anode and the second output filter capacitor (C2) the other end, first switch pipe (S1) source electrode be connected in rectifier bridge output voltage (vDC) negative terminal and the first diode (D1) cathode, the first diode (D1) Anode is connected in the first output filter capacitor (C1) the other end, i.e. high voltage direct current output (vH) and low-voltage direct output (vL) public affairs Negative terminal altogether.
The circuit diagram of implementation two is as shown in Figure 4：The dual output pfc converter is by rectifier bridge, boosting electricity Feel (Lb), first switch pipe (S1), second switch pipe (S2), the first diode (D1), the second diode (D2), first output filtering Capacitance (C1) and the second output filter capacitor (C2) composition；
The ac voltage input of the rectifier bridge and single phase alternating current power supply (vAC) be connected, rectifier bridge output voltage (vDC) Anode be connected in boost inductance (Lb) one end, boost inductance (Lb) the other end be connected in second switch pipe (S2) drain electrode and Two diode (D2) anode, the second diode (D2) cathode be connected in the second output filter capacitor (C2) one end, i.e. high straightening Stream output (vH) anode, second switch pipe (S2) source electrode be connected in first switch pipe (S1) drain electrode and the first diode (D1) Anode, the first diode (D1) cathode be connected in the first output filter capacitor (C1) one end, i.e. low-voltage direct output (vL) Anode, first switch pipe (S1) source electrode be connected in the first output filter capacitor (C1) the other end, i.e. low-voltage direct output (vL) Negative terminal, the second output filter capacitor (C2) the other end, i.e. high voltage direct current output (vH) negative terminal and rectifier bridge output voltage (vDC) Negative terminal.
As shown in Figure 5, the dual output pfc converter is by rectifier bridge, boosting electricity for the circuit diagram of implementation three Feel (Lb), first switch pipe (S1), second switch pipe (S2), the first diode (D1), the second diode (D2), first output filtering Capacitance (C1) and the second output filter capacitor (C2) composition；
The ac voltage input of the rectifier bridge and single phase alternating current power supply (vAC) be connected, rectifier bridge output voltage (vDC) Anode be connected in boost inductance (Lb) one end, boost inductance (Lb) the other end be connected in first switch pipe (S1) drain electrode, first Diode (D1) anode and the second diode (D2) anode, the second diode (D2) cathode be connected in the second output filtered electrical Hold (C2) one end, i.e. high voltage direct current output (vH) anode, the first diode (D1) cathode be connected in second switch pipe (S2) Drain electrode, second switch pipe (S2) source electrode be connected in the first output filter capacitor (C1) one end, i.e. low-voltage direct output (vL) just End and the second output filter capacitor (C2) the other end, first switch pipe (S1) source electrode be connected in the first output filter capacitor (C1) The other end, i.e. high voltage direct current output (vH) and low-voltage direct output (vL) public negative terminal and rectifier bridge output voltage (vDC) Negative terminal.
The circuit diagram of implementation four is as shown in Figure 6：The dual output pfc converter is by boost inductance (Lb)、 First switch pipe (S1), second switch pipe (S2), third switching tube (S3), the first diode (D1), the second diode (D2), third Diode (D3), the first output filter capacitor (C1) and the second output filter capacitor (C2) composition；
Boost inductance (the Lb) one end be connected in single phase alternating current power supply (vAC) one end, boost inductance (Lb) the other end It is connected in first switch pipe (S1) drain electrode and second switch pipe (S2) source electrode, second switch pipe (S2) drain electrode be connected in the two or two Pole pipe (D2) cathode, third diode (D3) anode and third switching tube (S3) drain electrode, third switching tube (S3) source electrode It is connected in the first output filter capacitor (C1) one end, i.e. low-voltage direct output (vL) anode, third diode (D3) cathode connect In the second output filter capacitor (C2) one end, i.e. high voltage direct current output (vH) anode, first switch pipe (S1) source electrode be connected in First output filter capacitor (C1) the other end, i.e. low-voltage direct output (vL) negative terminal, the second output filter capacitor (C2) it is another One end, i.e. high voltage direct current output (vH) negative terminal and the first diode (D1) anode, the first diode (D1) cathode be connected in Two diode (D2) anode and single phase alternating current power supply (vAC) the other end.
The circuit diagram of implementation five is as shown in Figure 7：The dual output pfc converter is by boost inductance (Lb)、 First switch pipe (S1), second switch pipe (S2), third switching tube (S3), the first diode (D1), the second diode (D2), third Diode (D3), the 4th diode (D4), the first output filter capacitor (C1) and the second output filter capacitor (C2) composition；
Boost inductance (the Lb) one end be connected in single phase alternating current power supply (vAC) one end, boost inductance (Lb) the other end It is connected in first switch pipe (S1) drain electrode, second switch pipe (S2) source electrode and the 4th diode (D4) anode, second switch pipe (S2) drain electrode be connected in the second diode (D2) cathode and the second output filter capacitor (C2) one end, i.e. high voltage direct current export (vH) anode, the 4th diode (D1) cathode be connected in third diode (D3) cathode and third switching tube (S3) drain electrode, Third switching tube (S3) source electrode be connected in the first output filter capacitor (C1) one end, i.e. low-voltage direct output (vL) anode, One switching tube (S1) source electrode be connected in the first output filter capacitor (C1) the other end, i.e. low-voltage direct output (vL) negative terminal, Two output filter capacitor (C2) the other end, i.e. high voltage direct current output (vH) negative terminal and the first diode (D1) anode, first Diode (D1) cathode be connected in the second diode (D2) anode, third diode (D3) anode and single phase alternating current power supply (vAC) the other end.
The circuit diagram of implementation six is as shown in Figure 8：The dual output pfc converter is by the first boost inductance (Lb1), the second boost inductance (Lb2), first switch pipe (S1), second switch pipe (S2), third switching tube (S3), the first diode (D1), the second diode (D2), third diode (D3), the 4th diode (D4), the 5th diode (D5), first output filtered electrical Hold (C1) and the second output filter capacitor (C2) composition；
First boost inductance (the Lb1) one end be connected in first switch pipe (S1) drain electrode and third diode (D3) Anode, the second boost inductance (Lb2) one end be connected in second switch pipe (S2) drain electrode and the 4th diode (D4) anode, Four diode (D4) cathode be connected in third diode (D3) cathode, the 5th diode (D5) anode and third switching tube (S3) drain electrode, third switching tube (S3) source electrode be connected in the first output filter capacitor (C1) one end, i.e. low-voltage direct export (vL) anode, the 5th diode (D5) cathode be connected in the second output filter capacitor (C2) one end, i.e. high voltage direct current export (vH) anode, the second output filter capacitor (C2) the other end, i.e. high voltage direct current output (vH) negative terminal be connected in the first output filter Wave capacitance (C1) the other end, i.e. low-voltage direct output (vL) negative terminal, first switch pipe (S1) source electrode, second switch pipe (S2) source electrode, the first diode (D1) anode and the second diode (D2) anode, the second diode (D2) cathode be connected in First boost inductance (Lb1) the other end and single phase alternating current power supply (vAC) one end, single phase alternating current power supply (vAC) the other end connect In the second boost inductance (Lb2) the other end and the first diode (D1) cathode.
The circuit diagram of implementation seven is as shown in Figure 9：The dual output pfc converter is by the first boost inductance (Lb1), the second boost inductance (Lb2), first switch pipe (S1), second switch pipe (S2), third switching tube (S3), the 4th switching tube (S4), the first diode (D1), the second diode (D2), third diode (D3), the 4th diode (D4), the 5th diode (D5), the 6th diode (D6), the first output filter capacitor (C1) and the second output filter capacitor (C2) composition；
First boost inductance (the Lb1) one end be connected in first switch pipe (S1) drain electrode and the 5th diode (D5) Anode, the second boost inductance (Lb2) one end be connected in third switching tube (S3) drain electrode and the 6th diode (D6) anode, One switching tube (S1) source electrode be connected in third diode (D3) anode and second switch pipe (S2) drain electrode, third switching tube (S3) source electrode be connected in the 4th switching tube (D4) anode and the 4th switching tube (S4) drain electrode, the 5th diode (D5) cathode It is connected in the 6th diode (D6) cathode and the second output filter capacitor (C2) one end, i.e. high voltage direct current output (vH) anode, Third diode (D3) cathode be connected in the 4th diode (D4) cathode and the first output filter capacitor (C1) one end, i.e. low Press direct current output (vL) anode, the first output filter capacitor (C1) the other end, i.e. low-voltage dc voltage output (vL) negative terminal It is connected in the second output filter capacitor (C2) the other end, i.e. high voltage direct current output (vH) negative terminal, second switch pipe (S2) source Pole, the 4th switching tube (S4) source electrode, the first diode (D1) anode and the second diode (D2) anode, the second diode (D2) cathode be connected in the first boost inductance (Lb1) the other end and single phase alternating current power supply (vAC) one end, single phase alternating current power supply (vAC) the other end be connected in the second boost inductance (Lb2) the other end and the first diode (D1) cathode.
The circuit diagram of implementation eight is as shown in Figure 10：The dual output pfc converter is by boost inductance (Lb)、 First switch pipe (S1), second switch pipe (S2), third switching tube (S3), the first diode (D1), the second diode (D2), third Diode (D3), the first output filter capacitor (C1) and the second output filter capacitor (C2) composition；
Boost inductance (the Lb) one end be connected in first switch pipe (S1) drain electrode and the first diode (D1) anode, First diode (D1) cathode be connected in the second diode (D2) cathode, third switching tube (S3) drain electrode and third diode (D3) anode, third diode (D3) cathode be connected in the second output filter capacitor (C2) one end, i.e. high voltage direct current export (vH) anode, third switching tube (S3) source electrode be connected in the first output filter capacitor (C1) one end, i.e. low-voltage direct export (vL) anode and the second output filter capacitor (C2) the other end, the first output filter capacitor (C1) the other end, i.e. high straightening Stream output (vH) and low-voltage direct output (vL) public negative terminal be connected in first switch pipe (S1) source electrode and second switch pipe (S2) Source electrode, second switch pipe (S2) drain electrode be connected in the second diode (D2) anode and single phase alternating current power supply (vAC) one end, Single phase alternating current power supply (vAC) the other end be connected in boost inductance (Lb) the other end.
The circuit diagram of implementation nine is as shown in Figure 11：The dual output pfc converter is by the first boost inductance (Lb1), the second boost inductance (Lb2), first switch pipe (S1), second switch pipe (S2), third switching tube (S3), the 4th switching tube (S4), the first low tension switch pipe (SL1), the second low tension switch pipe (SL2), third low tension switch pipe (SL3), the 4th low tension switch pipe (SL4), the first output filter capacitor (C1) and the second output filter capacitor (C2) composition；
First boost inductance (the Lb1) one end be connected in third switching tube (S3) source electrode, the 4th switching tube (S4) leakage Pole and the first low tension switch pipe (SL1) source electrode, the second boost inductance (Lb2) one end be connected in second switch pipe (S2) drain electrode, First switch pipe (S1) source electrode and third low tension switch pipe (SL3) source electrode, first switch pipe (S1) drain electrode be connected in third and open Close pipe (S3) drain electrode and the second output filter capacitor (C2) one end, i.e. high voltage direct current output (vH) anode, the first low pressure opens Close pipe (SL1) drain electrode be connected in the second low tension switch pipe (SL2) drain electrode, third low tension switch pipe (SL3) drain electrode to be connected in the 4th low Compress switch pipe (SL4) drain electrode, the 4th low tension switch pipe (SL4) source electrode be connected in the second low tension switch pipe (SL2) source electrode and One output filter capacitor (C1) one end, i.e. low-voltage dc voltage output (vL) anode, the first output filter capacitor (C1) it is another One end, i.e. low-voltage direct output (vL) negative terminal be connected in the second output filter capacitor (C2) the other end, i.e. high voltage direct current export (vH) negative terminal, second switch pipe (S2) source electrode and the 4th switching tube (S4) source electrode, single phase alternating current power supply (vAC) one end connect In the first boost inductance (Lb1) the other end, single phase alternating current power supply (vAC) the other end be connected in the second boost inductance (Lb2) it is another One end.
The circuit diagram of implementation ten is as shown in Figure 12：The dual output pfc converter is by A phase boost inductances (LA), B phase boost inductances (LB), C phase boost inductances (LC), first switch pipe (S1), second switch pipe (S2), third switching tube (S3), the 4th switching tube (S4), the 5th switching tube (S5), the 6th switching tube (S6), the first low tension switch pipe (SL1), the second low pressure Switching tube (SL2), third low tension switch pipe (SL3), the 4th low tension switch pipe (SL4), the 5th low tension switch pipe (SL5), the 6th low pressure Switching tube (SL6), the first output filter capacitor (C1) and the second output filter capacitor (C2) composition；
Three-phase alternating-current supply (the vABC) m ends be connected in A phase boost inductances (LA) one end, three-phase alternating-current supply (vABC) N ends be connected in B phase boost inductances (LB) one end, three-phase alternating-current supply (vABC) p ends be connected in C phase boost inductances (LC) one End, A phase boost inductances (LA) the other end be connected in the 5th switching tube (S5) source electrode, the 6th switching tube (S6) drain electrode and first Low tension switch pipe (SL1) source electrode, B phase boost inductances (LB) the other end be connected in third switching tube (S3) source electrode, the 4th switch Manage (S4) drain electrode and third low tension switch pipe (SL3) source electrode, C phase boost inductances (LC) the other end be connected in first switch pipe (S1) source electrode, second switch pipe (S2) drain electrode and the 5th low tension switch pipe (SL5) source electrode, first switch pipe (S1) drain electrode It is connected in third switching tube (S3) drain electrode, the 5th switching tube (S5) drain electrode and the second output filter capacitor (C2) one end, i.e. high Press direct current output (vH) anode, the first low tension switch pipe (SL1) drain electrode be connected in the second low tension switch pipe (SL2) drain electrode, Three low tension switch pipe (SL3) drain electrode be connected in the 4th low tension switch pipe (SL4) drain electrode, the 5th low tension switch pipe (SL5) drain electrode It is connected in the 6th low tension switch pipe (SL6) drain electrode, the 6th low tension switch pipe (SL6) source electrode be connected in the 4th low tension switch pipe (SL4) Source electrode, the second low tension switch pipe (SL2) source electrode and the first output filter capacitor (C1) one end, i.e. low-voltage direct export (vL) anode, the first output filter capacitor (C1) the other end, i.e. low-voltage direct output (vL) negative terminal be connected in the second output filter Wave capacitance (C2) the other end, i.e. high voltage direct current output (vH) negative terminal, the 6th switching tube (S6) source electrode, the 4th switching tube (S4) source electrode and second switch pipe (S2) source electrode.
In above-mentioned implementation, the high voltage direct current output (v of dual output pfc converterH) the first DCX circuits of connection (DCX-1) input terminal, the low-voltage direct output (v of dual output pfc converterL) connection the 2nd DCX circuits (DCX-2) input End, the output (v of the first DCX circuits (DCX-1)o1) and the 2nd DCX circuits (DCX-2) output (vo2) load is connected after series connection (Ro) both ends.In order to realize this purpose, the two-way DCX circuits may be used with appointing in following topological structures Meaning is a kind of：Series resonant circuit, antiresonant circuit, half-bridge logical link control (LLC) resonant circuit, full-bridge LLC resonance circuits and phase-shifting full-bridge electricity Road.
In above-mentioned implementation, the control method of two-stage type AC-DC converter of the present invention is：Dual output PFC High voltage direct current output (the v of converterH) and low-voltage direct output (vL) voltage by dual output pfc converter control, dual output High voltage direct current output (the v of pfc converterH) voltages keep constant and be consistently greater than be equal to single phase alternating current power supply (vAC) or three-phase AC power (vABC) line voltage peak value, dual output pfc converter low-voltage direct output (vL) voltage variable, and lose-lose Go out pfc converter and export (v by adjusting low-voltage directL) voltage carry out steady load (Ro) both ends voltage (vo), the first DCX Output (the v of circuit (DCX-1)o1) always (v is exported with the high voltage direct current of dual output pfc converterH) voltage remain fixed ratio Example, the output (v of the 2nd DCX circuits (DCX-2)o2) always (v is exported with the low-voltage direct of dual output pfc converterL) voltage Remain fixed ratio.
The present invention program and its operation principle are described further with reference to specific embodiment.
By dual output pfc converter dual output PFC in attached drawing 4 in 1 two-stage type Single-phase AC-DC converters system of attached drawing The schematic diagram of converter implementation two replaces, and LLC resonant full bridges are respectively adopted in the first DCX circuits and the 2nd DCX circuits Circuit and LLC resonance half-bridge circuits can then obtain dual output pfc converter and be become using the two-stage type AC-DC of embodiment two Transformer system schematic diagram is as shown in Figure 13.
As shown in Figure 13, the high voltage direct current output (v of dual output pfc converterH) as the defeated of full-bridge LLC resonance circuits Enter, low-voltage direct output (vL) input as half-bridge logical link control (LLC) resonant circuit, the output of full-bridge LLC resonance circuits and half-bridge LLC are humorous Shake circuit output series connection after for load energy is provided.Wherein, the high voltage direct current output (v of dual output pfc converterH) and low pressure Direct current output (vL) voltage by dual output pfc converter, i.e. three level Boost dual output pfc converters control, and dual output High voltage direct current output (the v of pfc converterH) voltage be consistently greater than be equal to single phase alternating current power supply (vAC) crest voltage, lose-lose Go out the high voltage direct current output (v of pfc converterH) voltage always with the first DCX circuits (DCX-1), i.e. full-bridge LLC resonance circuits Output (vo1) voltage is equal to full-bridge LLC resonance circuits input voltage and the intrinsic electricity of output voltage into fixed proportion and the ratio Pressure ratio example is full-bridge LLC resonance transformers (T1) turn ratio NP1/NS1, the low-voltage direct output (v of dual output pfc converterL) Voltage always with the 2nd DCX circuits (DCX-2), the i.e. output (v of half-bridge logical link control (LLC) resonant circuito2) voltage into fixed proportion and should The ratio voltage ratio intrinsic equal to half-bridge logical link control (LLC) resonant circuit input voltage and output voltage is half-bridge logical link control (LLC) resonant transformer (T2) turn ratio NP2/NS2Twice, the output (v of full-bridge LLC resonance circuitso1) voltage and half-bridge logical link control (LLC) resonant circuit output (vo2) the sum of Voltage Series are equal to load (Ro) both end voltage (vo)。
In order to realize the purpose, the control mode taken dual output pfc converter is：The height of dual output pfc converter Press direct current output (vH) and input current (iDC) controlled by using the bicyclic adjuster of traditional outer voltage+current inner loop System, first switch pipe (S1) and second switch pipe (S2) drive signal is used to interlock 180 ° of control mode utmostly to reduce Input current pulsating quantity and output voltage ripple.(v is exported to dual output pfc converter low-voltage direct in order to realize simultaneouslyL) Control, in first switch pipe (S1) and second switch pipe (S2) in the case that the sum of duty ratio remains unchanged, increase second switch pipe (S2) duty ratio (d2), reduce first switch pipe (S1) duty ratio (d1).First switch pipe (S1) and second switch pipe (S2) Duty ratio be respectively d1=d- Δs d, d2=d+ Δ d, wherein d export (v for dual output pfc converter high voltage direct currentH) adjuster With input current (iDC) the obtained main duty cycle signals of adjuster, Δ d exports (v for dual output pfc converter low-voltage directL) adjust Save the output signal of device.Remain that dual output pfc converter high voltage direct current exports (v in circuit workH) voltage is constant, pass through Adjust dual output pfc converter low-voltage direct output (vL) voltage realization load voltage (vo) wide scope variation.
According to the description of operation principle above, the present invention can pass through the low pressure of the voltage variable of dual output pfc converter Direct current output is directly realized by the wide scope variation of load voltage, and rear class realizes electrical isolation, phase using efficient DCX circuits Than the whole efficiency that two-stage type AC-DC converter can be substantially improved in traditional two-stage type scheme, it is big to be particularly suitable for load voltage The AC-DC transformation of electrical energy occasion of amplitude variation.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (14)

1. a kind of two-stage type AC-DC converter, it is characterised in that：The two-stage type AC-DC converter is by single phase alternating current power supply (vAC), dual output pfc converter, the first DCX circuits (DCX-1), the 2nd DCX circuits (DCX-2) and load (Ro) composition, wherein Dual output pfc converter includes an ac voltage input, high voltage direct current output (vH) and low-voltage direct output (vL)；
Single phase alternating current power supply (the vAC) connection dual output pfc converter ac voltage input, dual output pfc converter High voltage direct current exports (vH) connection the first DCX circuits (DCX-1) input terminal, dual output pfc converter low-voltage direct output (vL) connection the 2nd DCX circuits (DCX-2) input terminal, the output (v of the first DCX circuits (DCX-1)o1) and the 2nd DCX circuits (DCX-2) output (vo2) connection load (R after series connectiono) both ends.
2. a kind of two-stage type AC-DC converter, it is characterised in that：The two-stage type AC-DC converter is by three-phase alternating-current supply (vABC), dual output pfc converter, the first DCX circuits (DCX-1), the 2nd DCX circuits (DCX-2) and load (Ro) composition, Middle three-phase alternating-current supply (vABC) including m ends, n ends and p ends, dual output pfc converter includes ac voltage input, a height Press direct current output (vH) and low-voltage direct output (vL)；
Three-phase alternating-current supply (the vABC) connection dual output pfc converter ac voltage input, dual output pfc converter High voltage direct current output (vH) the first DCX circuits (DCX-1) of connection input terminal, the low-voltage direct of dual output pfc converter is defeated Go out (vL) connection the 2nd DCX circuits (DCX-2) input terminal, the output (v of the first DCX circuits (DCX-1)o1) and the 2nd DCX electricity Output (the v on road (DCX-2)o2) connection load (R after series connectiono) both ends.
3. the two-stage type AC-DC converter according to claim 1 or claim 2, which is characterized in that the first DCX Circuit (DCX-1) and the 2nd DCX circuits (DCX-2) have any one in following topological structures：Series resonant circuit, parallel connection Resonance circuit, half-bridge logical link control (LLC) resonant circuit, full-bridge LLC resonance circuits and phase whole-bridging circuit.
4. the control method of the two-stage type AC-DC converter according to claim 1 or claim 2, which is characterized in that double Export the high voltage direct current output (v of pfc converterH) and low-voltage direct output (vL) voltage by dual output pfc converter control System, the high voltage direct current output (v of dual output pfc converterH) voltages keep constant and be consistently greater than be equal to single phase alternating current power supply (vAC) or three-phase alternating-current supply (vABC) line voltage peak value, dual output pfc converter low-voltage direct output (vL) voltage can Become, and dual output pfc converter exports (v by adjusting low-voltage directL) voltage carry out steady load (Ro) both ends voltage (vo), the output (v of the first DCX circuits (DCX-1)o1) always (v is exported with the high voltage direct current of dual output pfc converterH) electricity Pressure remains fixed ratio, the output (v of the 2nd DCX circuits (DCX-2)o2) defeated with the low-voltage direct of dual output pfc converter always Go out (vL) voltage remain fixed ratio.
5. two-stage type AC-DC converter according to claim 1, which is characterized in that the dual output pfc converter is by whole Flow bridge, boost inductance (Lb), first switch pipe (S1), second switch pipe (S2), the first diode (D1), the second diode (D2)、 First output filter capacitor (C1) and the second output filter capacitor (C2) composition；
The ac voltage input of the rectifier bridge and single phase alternating current power supply (vAC) be connected, rectifier bridge output voltage (vDC) anode It is connected in boost inductance (Lb) one end, boost inductance (Lb) the other end be connected in second switch pipe (S2) drain electrode and the two or two pole Manage (D2) anode, the second diode (D2) cathode be connected in the second output filter capacitor (C2) one end, i.e. high voltage direct current export (vH) anode, second switch pipe (S2) source electrode be connected in first switch pipe (S1) drain electrode, the first output filter capacitor (C1) One end, i.e. low-voltage direct output (vL) anode and the second output filter capacitor (C2) the other end, first switch pipe (S1) source Pole is connected in rectifier bridge output voltage (vDC) negative terminal and the first diode (D1) cathode, the first diode (D1) anode be connected in First output filter capacitor (C1) the other end, i.e. high voltage direct current output (vH) and low-voltage direct output (vL) public negative terminal.
6. two-stage type AC-DC converter according to claim 1, which is characterized in that the dual output pfc converter is by whole Flow bridge, boost inductance (Lb), first switch pipe (S1), second switch pipe (S2), the first diode (D1), the second diode (D2)、 First output filter capacitor (C1) and the second output filter capacitor (C2) composition；
The ac voltage input of the rectifier bridge and single phase alternating current power supply (vAC) be connected, rectifier bridge output voltage (vDC) anode It is connected in boost inductance (Lb) one end, boost inductance (Lb) the other end be connected in second switch pipe (S2) drain electrode and the two or two pole Manage (D2) anode, the second diode (D2) cathode be connected in the second output filter capacitor (C2) one end, i.e. high voltage direct current export (vH) anode, second switch pipe (S2) source electrode be connected in first switch pipe (S1) drain electrode and the first diode (D1) anode, First diode (D1) cathode be connected in the first output filter capacitor (C1) one end, i.e. low-voltage direct output (vL) anode, One switching tube (S1) source electrode be connected in the first output filter capacitor (C1) the other end, i.e. low-voltage direct output (vL) negative terminal, Two output filter capacitor (C2) the other end, i.e. high voltage direct current output (vH) negative terminal and rectifier bridge output voltage (vDC) negative terminal.
7. two-stage type AC-DC converter according to claim 1, which is characterized in that the dual output pfc converter is by whole Flow bridge, boost inductance (Lb), first switch pipe (S1), second switch pipe (S2), the first diode (D1), the second diode (D2)、 First output filter capacitor (C1) and the second output filter capacitor (C2) composition；
The ac voltage input of the rectifier bridge and single phase alternating current power supply (vAC) be connected, rectifier bridge output voltage (vDC) anode It is connected in boost inductance (Lb) one end, boost inductance (Lb) the other end be connected in first switch pipe (S1) drain electrode, the first diode (D1) anode and the second diode (D2) anode, the second diode (D2) cathode be connected in the second output filter capacitor (C2) One end, i.e. high voltage direct current output (vH) anode, the first diode (D1) cathode be connected in second switch pipe (S2) drain electrode, Second switch pipe (S2) source electrode be connected in the first output filter capacitor (C1) one end, i.e. low-voltage direct output (vL) anode and Second output filter capacitor (C2) the other end, first switch pipe (S1) source electrode be connected in the first output filter capacitor (C1) it is another One end, i.e. high voltage direct current output (vH) and low-voltage direct output (vL) public negative terminal and rectifier bridge output voltage (vDC) it is negative End.
8. two-stage type AC-DC converter according to claim 1, which is characterized in that the dual output pfc converter is by rising Voltage inductance (Lb), first switch pipe (S1), second switch pipe (S2), third switching tube (S3), the first diode (D1), the two or two pole Manage (D2), third diode (D3), the first output filter capacitor (C1) and the second output filter capacitor (C2) composition；
Boost inductance (the Lb) one end be connected in single phase alternating current power supply (vAC) one end, boost inductance (Lb) the other end be connected in First switch pipe (S1) drain electrode and second switch pipe (S2) source electrode, second switch pipe (S2) drain electrode be connected in the second diode (D2) cathode, third diode (D3) anode and third switching tube (S3) drain electrode, third switching tube (S3) source electrode be connected in First output filter capacitor (C1) one end, i.e. low-voltage direct output (vL) anode, third diode (D3) cathode be connected in Two output filter capacitor (C2) one end, i.e. high voltage direct current output (vH) anode, first switch pipe (S1) source electrode be connected in first Output filter capacitor (C1) the other end, i.e. low-voltage direct output (vL) negative terminal, the second output filter capacitor (C2) it is another End, i.e. high voltage direct current output (vH) negative terminal and the first diode (D1) anode, the first diode (D1) cathode be connected in second Diode (D2) anode and single phase alternating current power supply (vAC) the other end.
9. two-stage type AC-DC converter according to claim 1, which is characterized in that the dual output pfc converter is by rising Voltage inductance (Lb), first switch pipe (S1), second switch pipe (S2), third switching tube (S3), the first diode (D1), the two or two pole Manage (D2), third diode (D3), the 4th diode (D4), the first output filter capacitor (C1) and the second output filter capacitor (C2) Composition；
Boost inductance (the Lb) one end be connected in single phase alternating current power supply (vAC) one end, boost inductance (Lb) the other end be connected in First switch pipe (S1) drain electrode, second switch pipe (S2) source electrode and the 4th diode (D4) anode, second switch pipe (S2) Drain electrode be connected in the second diode (D2) cathode and the second output filter capacitor (C2) one end, i.e. high voltage direct current output (vH) Anode, the 4th diode (D4) cathode be connected in third diode (D3) cathode and third switching tube (S3) drain electrode, third Switching tube (S3) source electrode be connected in the first output filter capacitor (C1) one end, i.e. low-voltage direct output (vL) anode, first opens Close pipe (S1) source electrode be connected in the first output filter capacitor (C1) the other end, i.e. low-voltage direct output (vL) negative terminal, second defeated Go out filter capacitor (C2) the other end, i.e. high voltage direct current output (vH) negative terminal and the first diode (D1) anode, the one or two pole Manage (D1) cathode be connected in the second diode (D2) anode, third diode (D3) anode and single phase alternating current power supply (vAC) The other end.
10. two-stage type AC-DC converter according to claim 1, which is characterized in that the dual output pfc converter by First boost inductance (Lb1), the second boost inductance (Lb2), first switch pipe (S1), second switch pipe (S2), third switching tube (S3), the first diode (D1), the second diode (D2), third diode (D3), the 4th diode (D4), the 5th diode (D5), the first output filter capacitor (C1) and the second output filter capacitor (C2) composition；
First boost inductance (the Lb1) one end be connected in first switch pipe (S1) drain electrode and third diode (D3) anode, Second boost inductance (Lb2) one end be connected in second switch pipe (S2) drain electrode and the 4th diode (D4) anode, the four or two pole Manage (D4) cathode be connected in third diode (D3) cathode, the 5th diode (D5) anode and third switching tube (S3) leakage Pole, third switching tube (S3) source electrode be connected in the first output filter capacitor (C1) one end, i.e. low-voltage direct output (vL) just End, the 5th diode (D5) cathode be connected in the second output filter capacitor (C2) one end, i.e. high voltage direct current output (vH) just End, the second output filter capacitor (C2) the other end, i.e. high voltage direct current output (vH) negative terminal be connected in the first output filter capacitor (C1) the other end, i.e. low-voltage direct output (vL) negative terminal, first switch pipe (S1) source electrode, second switch pipe (S2) source Pole, the first diode (D1) anode and the second diode (D2) anode, the second diode (D2) cathode be connected in the first boosting Inductance (Lb1) the other end and single phase alternating current power supply (vAC) one end, single phase alternating current power supply (vAC) the other end be connected in second liter Voltage inductance (Lb2) the other end and the first diode (D1) cathode.
11. two-stage type AC-DC converter according to claim 1, which is characterized in that the dual output pfc converter by First boost inductance (Lb1), the second boost inductance (Lb2), first switch pipe (S1), second switch pipe (S2), third switching tube (S3), the 4th switching tube (S4), the first diode (D1), the second diode (D2), third diode (D3), the 4th diode (D4), the 5th diode (D5), the 6th diode (D6), the first output filter capacitor (C1) and the second output filter capacitor (C2) group Into；
First boost inductance (the Lb1) one end be connected in first switch pipe (S1) drain electrode and the 5th diode (D5) anode, Second boost inductance (Lb2) one end be connected in third switching tube (S3) drain electrode and the 6th diode (D6) anode, first switch Manage (S1) source electrode be connected in third diode (D3) anode and second switch pipe (S2) drain electrode, third switching tube (S3) source Pole is connected in the 4th switching tube (D4) anode and the 4th switching tube (S4) drain electrode, the 5th diode (D5) cathode be connected in the 6th Diode (D6) cathode and the second output filter capacitor (C2) one end, i.e. high voltage direct current output (vH) anode, the three or two pole Manage (D3) cathode be connected in the 4th diode (D4) cathode and the first output filter capacitor (C1) one end, i.e. low-voltage direct it is defeated Go out (vL) anode, the first output filter capacitor (C1) the other end, i.e. low-voltage dc voltage output (vL) negative terminal be connected in second Output filter capacitor (C2) the other end, i.e. high voltage direct current output (vH) negative terminal, second switch pipe (S2) source electrode, the 4th opens Close pipe (S4) source electrode, the first diode (D1) anode and the second diode (D2) anode, the second diode (D2) cathode It is connected in the first boost inductance (Lb1) the other end and single phase alternating current power supply (vAC) one end, single phase alternating current power supply (vAC) it is another End is connected in the second boost inductance (Lb2) the other end and the first diode (D1) cathode.
12. two-stage type AC-DC converter according to claim 1, which is characterized in that the dual output pfc converter by Boost inductance (Lb), first switch pipe (S1), second switch pipe (S2), third switching tube (S3), the first diode (D1), the two or two Pole pipe (D2), third diode (D3), the first output filter capacitor (C1) and the second output filter capacitor (C2) composition；
Boost inductance (the Lb) one end be connected in first switch pipe (S1) drain electrode and the first diode (D1) anode, first Diode (D1) cathode be connected in the second diode (D2) cathode, third switching tube (S3) drain electrode and third diode (D3) Anode, third diode (D3) cathode be connected in the second output filter capacitor (C2) one end, i.e. high voltage direct current output (vH) Anode, third switching tube (S3) source electrode be connected in the first output filter capacitor (C1) one end, i.e. low-voltage direct output (vL) just End and the second output filter capacitor (C2) the other end, the first output filter capacitor (C1) the other end, i.e. high voltage direct current export (vH) and low-voltage direct output (vL) public negative terminal be connected in first switch pipe (S1) source electrode and second switch pipe (S2) source Pole, second switch pipe (S2) drain electrode be connected in the second diode (D2) anode and single phase alternating current power supply (vAC) one end, it is single-phase AC power (vAC) the other end be connected in boost inductance (Lb) the other end.
13. two-stage type AC-DC converter according to claim 1, which is characterized in that the dual output pfc converter by First boost inductance (Lb1), the second boost inductance (Lb2), first switch pipe (S1), second switch pipe (S2), third switching tube (S3), the 4th switching tube (S4), the first low tension switch pipe (SL1), the second low tension switch pipe (SL2), third low tension switch pipe (SL3)、 4th low tension switch pipe (SL4), the first output filter capacitor (C1) and the second output filter capacitor (C2) composition；
First boost inductance (the Lb1) one end be connected in third switching tube (S3) source electrode, the 4th switching tube (S4) drain electrode and First low tension switch pipe (SL1) source electrode, the second boost inductance (Lb2) one end be connected in second switch pipe (S2) drain electrode, first Switching tube (S1) source electrode and third low tension switch pipe (SL3) source electrode, first switch pipe (S1) drain electrode be connected in third switching tube (S3) drain electrode and the second output filter capacitor (C2) one end, i.e. high voltage direct current output (vH) anode, the first low tension switch pipe (SL1) drain electrode be connected in the second low tension switch pipe (SL2) drain electrode, third low tension switch pipe (SL3) drain electrode be connected in the 4th low pressure and open Close pipe (SL4) drain electrode, the 4th low tension switch pipe (SL4) source electrode be connected in the second low tension switch pipe (SL2) source electrode and first it is defeated Go out filter capacitor (C1) one end, i.e. low-voltage dc voltage output (vL) anode, the first output filter capacitor (C1) it is another End, i.e. low-voltage direct output (vL) negative terminal be connected in the second output filter capacitor (C2) the other end, i.e. high voltage direct current output (vH) Negative terminal, second switch pipe (S2) source electrode and the 4th switching tube (S4) source electrode, single phase alternating current power supply (vAC) one end be connected in First boost inductance (Lb1) the other end, single phase alternating current power supply (vAC) the other end be connected in the second boost inductance (Lb2) it is another End.
14. two-stage type AC-DC converter according to claim 2, which is characterized in that the dual output pfc converter is by A Phase boost inductance (LA), B phase boost inductances (LB), C phase boost inductances (LC), first switch pipe (S1), second switch pipe (S2), Three switching tube (S3), the 4th switching tube (S4), the 5th switching tube (S5), the 6th switching tube (S6), the first low tension switch pipe (SL1)、 Second low tension switch pipe (SL2), third low tension switch pipe (SL3), the 4th low tension switch pipe (SL4), the 5th low tension switch pipe (SL5)、 6th low tension switch pipe (SL6), the first output filter capacitor (C1) and the second output filter capacitor (C2) composition；
Three-phase alternating-current supply (the vABC) m ends be connected in A phase boost inductances (LA) one end, three-phase alternating-current supply (vABC) n ends It is connected in B phase boost inductances (LB) one end, three-phase alternating-current supply (vABC) p ends be connected in C phase boost inductances (LC) one end, A phases Boost inductance (LA) the other end be connected in the 5th switching tube (S5) source electrode, the 6th switching tube (S6) drain electrode and the first low pressure open Close pipe (SL1) source electrode, B phase boost inductances (LB) the other end be connected in third switching tube (S3) source electrode, the 4th switching tube (S4) Drain electrode and third low tension switch pipe (SL3) source electrode, C phase boost inductances (LC) the other end be connected in first switch pipe (S1) Source electrode, second switch pipe (S2) drain electrode and the 5th low tension switch pipe (SL5) source electrode, first switch pipe (S1) drain electrode be connected in Third switching tube (S3) drain electrode, the 5th switching tube (S5) drain electrode and the second output filter capacitor (C2) one end, i.e. high straightening Stream output (vH) anode, the first low tension switch pipe (SL1) drain electrode be connected in the second low tension switch pipe (SL2) drain electrode, third is low Compress switch pipe (SL3) drain electrode be connected in the 4th low tension switch pipe (SL4) drain electrode, the 5th low tension switch pipe (SL5) drain electrode be connected in 6th low tension switch pipe (SL6) drain electrode, the 6th low tension switch pipe (SL6) source electrode be connected in the 4th low tension switch pipe (SL4) source Pole, the second low tension switch pipe (SL2) source electrode and the first output filter capacitor (C1) one end, i.e. low-voltage direct output (vL) Anode, the first output filter capacitor (C1) the other end, i.e. low-voltage direct output (vL) negative terminal be connected in the second output filter capacitor (C2) the other end, i.e. high voltage direct current output (vH) negative terminal, the 6th switching tube (S6) source electrode, the 4th switching tube (S4) source Pole and second switch pipe (S2) source electrode.
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WO2019218498A1 (en) * 2018-05-18 2019-11-21 深圳驿普乐氏科技有限公司 Wide-range output circuit for charging module of charging pile, and control method
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CN109494999A (en) * 2018-09-28 2019-03-19 南京航空航天大学 Three port AC-DC of one kind and three-port DC transformer combination type AC/DC convertor and its control method
CN109194164A (en) * 2018-09-28 2019-01-11 南京航空航天大学 A kind of dual output AC/DC convertor and its control method
CN109347331A (en) * 2018-12-05 2019-02-15 深圳市英可瑞科技股份有限公司 A kind of tri-level switch power-supply system and its bus voltage eqaulation control method
CN110323955B (en) 2019-06-14 2020-12-22 华为技术有限公司 Off-grid phase splitter and inverter system
CN110323935B (en) * 2019-08-06 2020-09-25 厦门大学 Single-inductor boosting and boosting-and-reducing dual-output direct current converter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1270438A (en) * 1999-04-06 2000-10-18 朗迅科技公司 Two stage three-phase separating voltage converter
CN1849741A (en) * 2003-09-11 2006-10-18 英国氧气集团有限公司 Power factor correction circuit
CN104218826A (en) * 2013-05-30 2014-12-17 弗莱克斯电子有限责任公司 Bridgeless pfc power converter with reduced emi noise
CN104702097A (en) * 2013-12-04 2015-06-10 台达电子企业管理（上海）有限公司 Power supply device and method for generating power through the power supply device
CN105337515A (en) * 2015-11-01 2016-02-17 华南理工大学 High-efficiency double-Boost PFC converter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9099935B2 (en) * 2013-01-14 2015-08-04 Yaskawa America, Inc. Single-phase active front end rectifier system for use with three-phase variable frequency drives

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1270438A (en) * 1999-04-06 2000-10-18 朗迅科技公司 Two stage three-phase separating voltage converter
CN1849741A (en) * 2003-09-11 2006-10-18 英国氧气集团有限公司 Power factor correction circuit
CN104218826A (en) * 2013-05-30 2014-12-17 弗莱克斯电子有限责任公司 Bridgeless pfc power converter with reduced emi noise
CN104702097A (en) * 2013-12-04 2015-06-10 台达电子企业管理（上海）有限公司 Power supply device and method for generating power through the power supply device
CN105337515A (en) * 2015-11-01 2016-02-17 华南理工大学 High-efficiency double-Boost PFC converter

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