CN109494999A - Three port AC-DC of one kind and three-port DC transformer combination type AC/DC convertor and its control method - Google Patents

Three port AC-DC of one kind and three-port DC transformer combination type AC/DC convertor and its control method Download PDF

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Publication number
CN109494999A
CN109494999A CN201811165548.6A CN201811165548A CN109494999A CN 109494999 A CN109494999 A CN 109494999A CN 201811165548 A CN201811165548 A CN 201811165548A CN 109494999 A CN109494999 A CN 109494999A
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China
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dcx
switching tube
ports
port
converter
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CN201811165548.6A
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Chinese (zh)
Inventor
朱雷
吴红飞
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Nanjing University of Aeronautics and Astronautics
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Nanjing University of Aeronautics and Astronautics
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Priority to CN201811165548.6A priority Critical patent/CN109494999A/en
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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
    • 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
    • H02M3/33523—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/3353—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
    • H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
    • H02M3/33584—Bidirectional converters
    • 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
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0032—Control circuits allowing low power mode operation, e.g. in standby mode

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Rectifiers (AREA)

Abstract

The invention discloses three port AC-DC of one kind and three-port DC transformer combination type AC/DC convertor and its control method, belong to converters technical field.The three ports AC-DC is made of with three-port DC transformer combination type AC/DC convertor the two-way AC/DC convertor in three ports and three-port bidirectional direct-current converter, and there are two the constant high pressures of voltage, the low pressure of voltage variable DC bus.The present invention is directly realized by the gain match between DC converter input, output voltage using variable low-voltage direct bus, three-port DC converter can always work in the fixed efficiency optimization point of gain, more level natures are conducive to reduce three port AC/DC convertor switching losses and wave filter on AC side volume simultaneously, converter whole efficiency can be substantially improved, the AC-DC bidirectional electric energy that particularly suitable DC voltage significantlys change converts occasion, has significant application value and application prospect in fields such as electric car, energy-storage systems.

Description

Three port AC-DC of one kind and three-port DC transformer combination type AC/DC convertor And its control method
Technical field
The present invention relates to three port AC-DC of one kind and three-port DC transformer combination type AC/DC convertor and its control Method belongs to converters technical field, especially belongs to AC-DC electric energy two-way changing technical field.
Background technique
V2G industry development day as ev industry continues to develop, based on the charge and discharge of batteries of electric automobile It is beneficial flourishing.Two-way AC-DC converter as connection power grid and battery between key equipment, efficiency increasingly by The concern of people.
In order to cope with the wide problem of battery voltage variation range, the two-way AC-DC converter of tradition mostly uses greatly two-stage type Structure.The two-way AC-DC converter of prime provides constant DC bus-bar voltage, realizes the management to ac-side current and hands over straight The control of side transimission power size is flowed, rear class bidirectional DC-DC converter adjusts gain, realizes busbar voltage and DC side power supply electricity Gain match between pressure.Although the two-way AC-DC converter of two-stage type is widely used in industry, there is also following deficiencies Place: (1) in order to realize the adjusting in entirely exchange side voltage cycle to alternating current, DC bus-bar voltage, which has to be larger than, to be equal to The peak value of single phase alternating current power supply or the peak value of three-phase ac power cord voltage.Since DC bus-bar voltage is higher ranked, prime is double Higher voltage stress will be all born to the power device of AC-DC converter and rear class bidirectional DC-DC converter, will be unfavorable for The type selecting of device, and the voltage change at switching time switching device both ends is larger, also results in biggish switching loss.(2) When DC voltage variation range is wider, in order to realize the matching between DC voltage and busbar voltage, rear class bi-directional DC-DC Converter must be using the converter with wide gain, and the design difficulty of this quasi-converter is usually larger and is difficult to realize whole The optimization of a gain ranging internal efficiency.(3) all power are required by AC-DC converter and DC-DC converter two-stage type Transformation, system loss is larger, reduces converter whole efficiency.
To solve the above-mentioned problems, domestic and foreign scholars propose many solutions, imitate respectively to front stage circuit Rate optimization, such as use soft switch technique, multilevel converter.For example, document " Modeling and triple-loop control of ZVS grid-connected DC/AC converters for three-phase balanced Microinverter application [J] .IEEE Transactions on Power Electronics, 2015,30 (7): 3703-3711. " uses soft switch technique, improves transducer effciency.Separately there is scholar to propose single stage type circuit arrangement, leads to It crosses reduction power conversion series and realizes improved efficiency.Document " Ultracapacitor-battery hybrid energy storage system based on the asymmetric bidirectional Z-source topology for EV [J] IEEE Transactions on Power Electronics, 2016,31 (11): 7489-7498. " is become using the source Z- Parallel operation realizes single stage type power conversion.Existing program is to carry out efficiency optimization individually for front stage circuit mostly, and there are efficiency The problem that optimization range is limited, front stage optimization region is inconsistent, therefore cannot still realize that high efficiency becomes in wide-voltage range It changes.Z- source converter buck ability is limited, and stresses of parts is higher in converter, can not realize the effect in full voltage range Rate optimization.
Summary of the invention
The purpose of the present invention is in view of the deficiencies of the prior art, convert occasion for two-way exchange-direct current energy and provide one kind Novel effective three ports AC-DC and three-port DC transformer combination type AC/DC convertor and its control method.
The purpose of the present invention is achieved through the following technical solutions:
The three ports AC-DC and three-port DC transformer combination type AC/DC convertor are by single phase ac side power supply (vG) or three-phase alternating current side power supply (vabc), the two-way AC-DC converter in three ports, the two-way DCX converter in three ports and DC side Power supply (VB) composition, wherein the two-way AC-DC converter in three ports includes exchange side ports (1), low-voltage direct port (2) and high pressure DC port (3), the two-way DCX converter in three ports include low-voltage direct port (4), high voltage direct current port (5) and direct current side Mouth (6)；The single phase ac side power supply (vG) or three-phase alternating current side power supply (vabc) the connection two-way AC-DC converter in three ports It exchanges side ports (1), the low-voltage direct port (2) of the two-way AC-DC converter in three ports connects the two-way DCX converter in three ports Low-voltage direct port (4), the high voltage direct current port (3) of the two-way AC-DC converter in three ports connects the two-way DCX in three ports and becomes The direct current side ports (6) of the high voltage direct current port (5) of parallel operation, the two-way DCX converter in three ports connect DC side power supply (VB)；Institute It states the two-way DCX converter in three ports and works in open loop resonant frequency point, the electricity of low-voltage direct port and high voltage direct current port always Levelling mean value is equal, and low-voltage direct port and high voltage direct current port power transfer ratio and its port voltage are than consistent, low-voltage direct Voltage of the sum of the voltage of port and high voltage direct current port always with direct current side ports is kept fixed ratio.
The single-phase circuit in following scheme one and three in scheme two can be used in the two-way AC-DC converter in three ports Circuitry phase.
Scheme one:
The two-way AC-DC converter in three ports is by first switch tube (S1), second switch (S2), third switching tube (S3), the 4th switching tube (S4), the 5th switching tube (Sb11), the 6th switching tube (Sb12), the 7th switching tube (Sb21), the 8th switching tube (Sb22), Inductor (LG), the first filter capacitor (C1) and the second filter capacitor (C2) composition；
The single phase ac side power supply (vG) one end be connected in Inductor (LG) one end, Inductor (LG) The other end is connected in first switch tube (S1) source electrode, third switching tube (S3) drain electrode and the 5th switching tube (Sb11) source electrode, it is single Mutually exchange side power supply (vG) the other end be connected in second switch (S2) source electrode, the 4th switching tube (S4) drain electrode and the 7th open Close pipe (Sb21) source electrode, the 5th switching tube (Sb11) drain electrode be connected in the 6th switching tube (Sb12) drain electrode, the 7th switching tube (Sb21) drain electrode be connected in the 8th switching tube (Sb22) drain electrode, the 6th switching tube (Sb12) source electrode be connected in the 8th switching tube (Sb22) Source electrode and the first filter capacitor (C1) one end, i.e. the anode of three ports two-way AC-DC converter low-voltage direct port (2), First switch tube (S1) drain electrode be connected in second switch (S2) drain electrode and the second filter capacitor (C2) one end, i.e. three ports The anode of two-way AC-DC converter high voltage direct current port (3), third switching tube (S3) source electrode be connected in the 4th switching tube (S4) Source electrode, the first filter capacitor (C1) the other end and the second filter capacitor (C2) the other end, i.e. the two-way AC-DC in three ports transformation The public negative terminal of device low-voltage direct port (2) and high voltage direct current port (3).
Scheme two:
The two-way AC-DC converter in three ports is by a phase first switch tube (SHa), b phase first switch tube (SHb), c phase First switch tube (SHc), a phase second switch (SZa), b phase second switch (SZb), c phase second switch (SZc), a phase Three switching tube (SLa1), the 4th switching tube (S of a phaseLa2), b phase third switching tube (SLb1), the 4th switching tube (S of b phaseLb2), c phase Three switching tube (SLc1), the 4th switching tube (S of c phaseLc2), a phase Inductor (La), b phase Inductor (Lb), c phase exchange side Inductance (Lc), the first filter capacitor (C1) and the second filter capacitor (C2) composition；
The three-phase alternating current side power supply (vabc) the end a be connected in a phase Inductor (La) one end, a phase Inductor (La) the other end be connected in a phase first switch tube (SHa) source electrode, a phase third switching tube (SLa1) source electrode and a phase second open Close pipe (SZa) drain electrode, three-phase alternating current side power supply (vabc) the end b be connected in b phase Inductor (Lb) one end, b phase exchanges side Inductance (Lb) the other end be connected in b phase first switch tube (SHb) source electrode, b phase third switching tube (SLb1) source electrode and b phase second Switching tube (SZb) drain electrode, three-phase alternating current side power supply (vabc) the end c be connected in c phase Inductor (Lc) one end, c phase exchanges Side inductance (Lc) the other end be connected in c phase first switch tube (SHc) source electrode, c phase third switching tube (SLc1) source electrode and c phase Second switch (SZc) drain electrode, a phase third switching tube (SLa1) drain electrode be connected in the 4th switching tube (S of a phaseLa2) drain electrode, b phase Third switching tube (SLb1) drain electrode be connected in the 4th switching tube (S of b phaseLb2) drain electrode, c phase third switching tube (SLc1) drain electrode connect In the 4th switching tube (S of c phaseLc2) drain electrode, the 4th switching tube (S of a phaseLa2) source electrode be connected in the 4th switching tube (S of b phaseLb2) Source electrode, the 4th switching tube (S of c phaseLc2) source electrode and the first filter capacitor (C1) one end, i.e. the two-way AC-DC in three ports transformation The anode of device low-voltage direct port (2), a phase first switch tube (SHa) drain electrode be connected in b phase first switch tube (SHb) drain electrode, c Phase first switch tube (SHc) drain electrode and with the second filter capacitor (C2) one end, i.e. the two-way AC-DC converter high pressure in three ports The anode of DC port (3), a phase second switch (SZa) drain electrode be connected in b phase second switch (SZb) drain electrode, c phase second Switching tube (SZc) drain electrode, the first filter capacitor (C1) the other end and the second filter capacitor (C2) the other end, i.e. three ports The public negative terminal of two-way AC-DC converter low-voltage direct port (2) and high voltage direct current port (3).
The SPWM modulation of carrier wave stacking can be used in the two-way AC-DC converter in three ports, and positive half cycle is in first and third Operating mode, modulating wave veContinuously, smoothly switching for mode, modulating wave v can be realized by carrier offseteWith carrier wave vc2Knot becomes Parallel operation operates in the first operating mode, and exchange side ports (1) individually exchanges power, bridge arm midpoint electricity with low-voltage direct port (2) Press vabFor 0, VL, modulating wave veWith carrier wave vc1Knot, converter operate in third operating mode, exchange side ports (1) simultaneously with Low-voltage direct port (2), high voltage direct current port (3) exchange power, bridge arm mid-point voltage vabFor VL、VH, positive half cycle is switched to Two operating modes, exchange side ports (1) individually exchange power with high voltage direct current port (3), need to be by the mutation of modulating wave come real Existing mode smooth switching, bridge arm mid-point voltage vabFor 0, VH。
Double half-bridge structure circuits and scheme three in following scheme one, two can be used in the two-way DCX converter in three ports In bridge structural circuit of enjoying a double blessing.
Scheme one:
The two-way DCX converter in three ports is by DCX first switch tube (Sp1), DCX second switch (Sp2), DCX Three switching tube (Sp3), the 4th switching tube (S of DCXp4), the 5th switching tube (S of DCXs1), the 6th switching tube (S of DCXs2), DCX the 7th Switching tube (Ss3), the 8th switching tube (S of DCXs4), the first resonant inductance (Lr1), the first resonant capacitance (Cr1), the first transformer (T1) and third filter capacitor (C3) composition, wherein the first transformer (T1) it include primary side winding (Np1) and vice-side winding (Ns1)；
First transformer (the T1) primary side winding (Np1) Same Name of Ends be connected in the first resonant inductance (Lr1) one end, One resonant inductance (Lr1) the other end be connected in DCX third switching tube (Sp3) the 4th switching tube (S of source electrode and DCXp4) drain electrode, First transformer (T1) primary side winding (Np1) different name end be connected in the first resonant capacitance (Cr1) one end, the first resonant capacitance (Cr1) the other end be connected in DCX first switch tube (Sp1) source electrode and DCX second switch (Sp2) drain electrode, DCX third switch Manage (Sp3) drain electrode be connected in the anode of the two-way DCX converter high voltage direct current port (5) in three ports, DCX first switch tube (Sp1) Drain electrode be connected in the anode of the two-way DCX converter low-voltage direct port (4) in three ports, DCX second switch (Sp2) source electrode connect In the 4th switching tube (S of DCXp4) source electrode, i.e. the two-way DCX converter low-voltage direct port (4) in three ports and high voltage direct current port (5) public negative terminal, the first transformer (T1) vice-side winding (Ns1) Same Name of Ends be connected in the 5th switching tube (S of DCXs1) source electrode With the 6th switching tube (S of DCXs2) drain electrode, the first transformer (T1) vice-side winding (Ns1) different name end be connected in DCX the 7th switch Manage (Ss3) the 8th switching tube (S of source electrode and DCXs4) drain electrode, the 5th switching tube (S of DCXs1) drain electrode be connected in DCX the 7th and open Close pipe (Ss3) drain electrode and third filter capacitor (C3) one end, i.e. the two-way DCX converter direct current side ports (6) in three ports are just End, the 6th switching tube (S of DCXs2) source electrode be connected in the 8th switching tube (S of DCXs4) source electrode, i.e. the two-way DCX converter in three ports The negative terminal of direct current side ports (6).
Scheme two:
The two-way DCX converter in three ports is by DCX first switch tube (Sp1), DCX second switch (Sp2), DCX Three switching tube (Sp3), the 4th switching tube (S of DCXp4), the 5th switching tube (S of DCXs1), the 6th switching tube (S of DCXs2), DCX the 7th Switching tube (Ss3), the 8th switching tube (S of DCXs4), the first resonant inductance (Lr1), the second resonant inductance (Lr2), the first resonant capacitance (Cr1), the second resonant capacitance (Cr2), the first transformer (T1) and third filter capacitor (C3) composition, wherein the first transformer (T1) Include primary side winding (Np1) and vice-side winding (Ns1)；
First transformer (the T1) primary side winding (Np1) Same Name of Ends be connected in the first resonant inductance (Lr1) one end, One resonant inductance (Lr1) the other end be connected in DCX third switching tube (Sp3) the 4th switching tube (S of source electrode and DCXp4) drain electrode, First transformer (T1) primary side winding (Np1) different name end be connected in the first resonant capacitance (Cr1) one end, the first resonant capacitance (Cr1) the other end be connected in DCX first switch tube (Sp1) source electrode and DCX second switch (Sp2) drain electrode, DCX third switch Manage (Sp3) drain electrode be connected in the anode of the two-way DCX converter high voltage direct current port (5) in three ports, DCX first switch tube (Sp1) Drain electrode be connected in the anode of the two-way DCX converter low-voltage direct port (4) in three ports, DCX second switch (Sp2) source electrode connect In the 4th switching tube (S of DCXp4) source electrode, i.e. the two-way DCX converter low-voltage direct port (4) in three ports and high voltage direct current port (5) public negative terminal, the first transformer (T1) vice-side winding (Ns1) Same Name of Ends be connected in the second resonant inductance (Lr2) one end, Second resonant inductance (Lr2) the other end be connected in the 5th switching tube (S of DCXs1) the 6th switching tube (S of source electrode and DCXs2) leakage Pole, the first transformer (T1) vice-side winding (Ns1) different name end be connected in the second resonant capacitance (Cr2) one end, the second resonant capacitance (Cr2) the other end be connected in the 7th switching tube (S of DCXs3) the 8th switching tube (S of source electrode and DCXs4) drain electrode, DCX the 5th opens Close pipe (Ss1) drain electrode be connected in the 7th switching tube (S of DCXs3) drain electrode and third filter capacitor (C3) one end, i.e. three ports are double To the anode of DCX converter direct current side ports (6), the 6th switching tube (S of DCXs2) source electrode be connected in the 8th switching tube (S of DCXs4) Source electrode, i.e. the negative terminal of the two-way DCX converter direct current side ports (6) in three ports.
Scheme three:
The two-way DCX converter in three ports is by DCX first switch tube (Sp1), DCX second switch (Sp2), DCX Three switching tube (Sp3), the 4th switching tube (S of DCXp4), the 5th switching tube (S of DCXs1), the 6th switching tube (S of DCXs2), DCX the 7th Switching tube (Ss3), the 8th switching tube (S of DCXs4), the 9th switching tube (S of DCXp5), the tenth switching tube (S of DCXp6), DCX the 11st Switching tube (Sp7), the 12nd switching tube (S of DCXp8), the first resonant inductance (Lr1), the second resonant inductance (Lr2), third resonance electricity Feel (Lr3), the first resonant capacitance (Cr1), the second resonant capacitance (Cr2), third resonant capacitance (Cr3), the first transformer (T1), Two transformer (T2) and third filter capacitor (C3) composition, wherein the first transformer (T1) it include primary side winding (Np1) and secondary side around Group (Ns1), the second transformer (T2) it include primary side winding (Np2) and vice-side winding (Ns2)；
First transformer (the T1) primary side winding (Np1) Same Name of Ends be connected in the first resonant inductance (Lr1) one end, One resonant inductance (Lr1) the other end be connected in DCX third switching tube (Sp3) the 4th switching tube (S of source electrode and DCXp4) drain electrode, First transformer (T1) primary side winding (Np1) different name end be connected in the first resonant capacitance (Cr1) one end, the first resonant capacitance (Cr1) the other end be connected in DCX first switch tube (Sp1) source electrode and DCX second switch (Sp2) drain electrode, DCX third switch Manage (Sp3) drain electrode be connected in DCX first switch tube (Sp1) drain electrode, i.e. the two-way DCX converter high voltage direct current port in three ports (5) anode, DCX second switch (Sp2) source electrode be connected in the 4th switching tube (S of DCXp4) source electrode, i.e. three ports are two-way The public negative terminal of DCX converter low-voltage direct port (4) and high voltage direct current port (5), the second transformer (T2) primary side winding (Np2) Same Name of Ends be connected in the second resonant inductance (Lr2) one end, the second resonant inductance (Lr2) the other end be connected in DCX the tenth One switching tube (Sp7) the 12nd switching tube (S of source electrode and DCXp8) drain electrode, the second transformer (T2) primary side winding (Np2) Different name end is connected in the second resonant capacitance (Cr2) one end, the second resonant capacitance (Cr2) the other end be connected in the 9th switching tube of DCX (Sp5) the tenth switching tube (S of source electrode and DCXp6) drain electrode, the 9th switching tube (S of DCXp5) drain electrode be connected in DCX the 11st and open Close pipe (Sp7) drain electrode, i.e. the anode of the two-way DCX converter low-voltage direct port (4) in three ports, the tenth switching tube (S of DCXp6) Source electrode be connected in the 12nd switching tube (S of DCXp8) source electrode, i.e. the two-way DCX converter low-voltage direct port (4) in three ports and height The public negative terminal of straightening flow port (5), the first transformer (T1) vice-side winding (Ns1) Same Name of Ends be connected in third resonant inductance (Lr3) one end, third resonant inductance (Lr3) the other end be connected in the 5th switching tube (S of DCXs1) source electrode and DCX the 6th switch Manage (Ss2) drain electrode, the first transformer (T1) vice-side winding (Ns1) different name end be connected in the second transformer (T2) vice-side winding (Ns2) Same Name of Ends, the second transformer (T2) vice-side winding (Ns2) different name end be connected in third resonant capacitance (Cr3) one end, third is humorous Shake capacitor (Cr3) the other end be connected in the 7th switching tube (S of DCXs3) the 8th switching tube (S of source electrode and DCXs4) drain electrode, DCX 5th switching tube (Ss1) drain electrode be connected in the 7th switching tube (S of DCXs3) drain electrode and third filter capacitor (C3) one end, i.e., three The anode of the two-way DCX converter direct current side ports (6) in port, the 6th switching tube (S of DCXs2) source electrode be connected in DCX the 8th switch Manage (Ss4) source electrode, i.e. the negative terminal of the two-way DCX converter direct current side ports (6) in three ports.
The three ports AC-DC and three-port DC transformer combination type AC/DC convertor are operating only at rectification mode, The unidirectional DCX converter in three ports can be selected, the electricity of double half-bridge structures in following scheme one can be used in the unidirectional DCX converter in three ports Bridge structural circuit of enjoying a double blessing in road and scheme two.
Scheme one:
The unidirectional DCX converter in three ports is by DCX first switch tube (Sp1), DCX second switch (Sp2), DCX Three switching tube (Sp3), the 4th switching tube (S of DCXp4), DCX first diode (D1), the second diode of DCX (D2), DCX the three or two Pole pipe (D3), the 4th diode (D of DCX4), the first resonant inductance (Lr1), the first resonant capacitance (Cr1), the first transformer (T1) and Third filter capacitor (C3) composition, wherein the first transformer (T1) it include primary side winding (Np1) and vice-side winding (Ns1)；
First transformer (the T1) primary side winding (Np1) Same Name of Ends be connected in the first resonant inductance (Lr1) one end, One resonant inductance (Lr1) the other end be connected in DCX third switching tube (Sp3) the 4th switching tube (S of source electrode and DCXp4) drain electrode, First transformer (T1) primary side winding (Np1) different name end be connected in the first resonant capacitance (Cr1) one end, the first resonant capacitance (Cr1) the other end be connected in DCX first switch tube (Sp1) source electrode and DCX second switch (Sp2) drain electrode, DCX third switch Manage (Sp3) drain electrode be connected in the anode of the unidirectional DCX converter high voltage direct current port (5) in three ports, DCX first switch tube (Sp1) Drain electrode be connected in the anode of the unidirectional DCX converter low-voltage direct port (4) in three ports, DCX second switch (Sp2) source electrode connect In the 4th switching tube (S of DCXp4) source electrode, i.e. the unidirectional DCX converter low-voltage direct port (4) in three ports and high voltage direct current port (5) public negative terminal, the first transformer (T1) vice-side winding (Ns1) Same Name of Ends be connected in DCX first diode (D1) anode With the second diode of DCX (D2) cathode, the first transformer (T1) vice-side winding (Ns1) different name end be connected in the three or two pole DCX Manage (D3) the 4th diode of anode and DCX cathode, DCX first diode (D1) cathode be connected in DCX third diode (D3) Cathode and third filter capacitor (C3) one end, i.e. the anode of the unidirectional DCX converter direct current side ports (6) in three ports, DCX Two diode (D2) anode be connected in the 4th diode (D of DCX4) anode, i.e. the unidirectional DCX converter direct current side ports in three ports (6) negative terminal.
Scheme two:
The unidirectional DCX converter in three ports is by DCX first switch tube (Sp1), DCX second switch (Sp2), DCX Three switching tube (Sp3), the 4th switching tube (S of DCXp4), DCX first diode (D1), the second diode of DCX (D2), DCX the three or two Pole pipe (D3), the 4th diode (D of DCX4), the 9th switching tube (S of DCXp5), the tenth switching tube (S of DCXp6), DCX the 11st switch Manage (Sp7), the 12nd switching tube (S of DCXp8), the first resonant inductance (Lr1), the second resonant inductance (Lr2), the first resonant capacitance (Cr1), the second resonant capacitance (Cr2), the first transformer (T1), the second transformer (T2) and third filter capacitor (C3) composition, In the first transformer (T1) it include primary side winding (Np1) and vice-side winding (Ns1), the second transformer (T2) it include primary side winding (Np2) With vice-side winding (Ns2)；
First transformer (the T1) primary side winding (Np1) Same Name of Ends be connected in the first resonant inductance (Lr1) one end, One resonant inductance (Lr1) the other end be connected in DCX third switching tube (Sp3) the 4th switching tube (S of source electrode and DCXp4) drain electrode, First transformer (T1) primary side winding (Np1) different name end be connected in the first resonant capacitance (Cr1) one end, the first resonant capacitance (Cr1) the other end be connected in DCX first switch tube (Sp1) source electrode and DCX second switch (Sp2) drain electrode, DCX third switch Manage (Sp3) drain electrode be connected in DCX first switch tube (Sp1) drain electrode, i.e. the unidirectional DCX converter high voltage direct current port in three ports (5) anode, DCX second switch (Sp2) source electrode be connected in the 4th switching tube (S of DCXp4) source electrode, i.e. three ports are unidirectional The public negative terminal of DCX converter low-voltage direct port (4) and high voltage direct current port (5), the second transformer (T2) primary side winding (Np2) Same Name of Ends be connected in the second resonant inductance (Lr2) one end, the second resonant inductance (Lr2) the other end be connected in DCX the tenth One switching tube (Sp7) the 12nd switching tube (S of source electrode and DCXp8) drain electrode, the second transformer (T2) primary side winding (Np2) Different name end is connected in the second resonant capacitance (Cr2) one end, the second resonant capacitance (Cr2) the other end be connected in the 9th switching tube of DCX (Sp5) the tenth switching tube (S of source electrode and DCXp6) drain electrode, the 9th switching tube (S of DCXp5) drain electrode be connected in DCX the 11st and open Close pipe (Sp7) drain electrode, i.e. the anode of the unidirectional DCX converter low-voltage direct port (4) in three ports, the tenth switching tube (S of DCXp6) Source electrode be connected in the 12nd switching tube (S of DCXp8) source electrode, i.e. the unidirectional DCX converter low-voltage direct port (4) in three ports and height The public negative terminal of straightening flow port (5), the first transformer (T1) vice-side winding (Ns1) Same Name of Ends be connected in DCX first diode (D1) anode and the second diode of DCX (D2) cathode, the first transformer (T1) vice-side winding (Ns1) different name end be connected in second Transformer (T2) vice-side winding (Ns2) Same Name of Ends, the second transformer (T2) vice-side winding (Ns2) different name end be connected in DCX third Diode (D3) the 4th diode of anode and DCX cathode, DCX first diode (D1) cathode be connected in the three or two pole DCX Manage (D3) cathode and third filter capacitor (C3) one end, i.e. the unidirectional DCX converter direct current side ports (6) in three ports are just End, the second diode of DCX (D2) anode be connected in the 4th diode (D of DCX4) anode, i.e. the unidirectional DCX converter in three ports is straight Flow the negative terminal of side ports (6).
The control method of the three port AC-DC and three-port DC transformer combination type AC/DC convertor are to lead to It overregulates the action time of the second operating mode, realizes the distribution to high-low pressure port transmission power, that is, realize to high pressure port Voltage (VH), low-pressure port voltage (VL) control.High pressure port voltage (VH) keep constant and be consistently greater than equal to blow-up Galvanic electricity source (vG) or three-phase alternating-current supply (vabc) line voltage peak value, low-pressure port voltage (VL) can be changed and be not higher than high pressure port Voltage (VH), the two-way DCX converter in three ports works in the resonant frequency point of efficiency optimization always, by adjusting low-pressure port Voltage (VL) realize gain match between the two-way DCX converter input in three ports, output voltage.Meanwhile three two-way AC-DC in port Converter realizes DC side power supply (VB) and single phase alternating current power supply (vG) or three-phase alternating-current supply (vabc) between transimission power size Management.
The essential distinction of technical solution of the present invention and existing technical solution is, female using three Port Translation devices, double direct currents Line scheme provides two alternating current-direct current side power transmission accesses, and DC bus-bar voltage is controlled by two-way AC-DC converter, two-way DC- DC converter does not need to adjust gain.High voltage dc bus voltage is constant and is more than or equal to the peak value or three-phase of single phase alternating current power supply The peak value of AC power source line voltage guarantees effective control in exchange side voltage range entirely to ac-side current.Low-voltage direct Busbar voltage is not higher than high voltage dc bus voltage, is conducive to reduce two-way AC-DC converter switching loss.Three ports are two-way AC-DC converter controls two-port transimission power and port voltage by adjusting each model function time.By low The variation for pressing port voltage, is directly realized by gain match between the input of three port DCX converters, output voltage, and three port DCX become Parallel operation can work in the fixed efficiency optimization point of gain always, significantly Lifting Transform device whole efficiency.
The invention has the following beneficial effects:
(1) high-low pressure bus provides two power transfer paths for alternating current-direct current side, and the two-way AC-DC converter in three ports passes through Each path transmission watt level is adjusted, realizes the control to two DC bus-bar voltages；
(2) high voltage bus voltage is fixed, by adjusting low-voltage bus bar voltage, the two-way DCX converter input in three ports of realization, Gain match between output voltage, the two-way DCX converter in three ports can work in the fixed efficiency optimization point of gain always, have Conducive to converter design, Lifting Transform device whole efficiency；
(3) double DC bus make the two-way AC-DC converter in three ports have more level natures, are conducive to reduce power device Part voltage stress and converter switches loss, meanwhile, more level natures are conducive to reduce exchange side harmonic content, and then reduce Wave filter on AC side volume and weight.
Detailed description of the invention
Attached drawing 1 is the single-phase three ports AC-DC of the present invention and three-port DC transformer combination type AC/DC convertor system Structure chart；
Attached drawing 2 is three port AC-DC of three-phase of the present invention and three-port DC transformer combination type AC/DC convertor system Structure chart；
Attached drawing 3 is the schematic diagram of the two-way AC-DC converter implementation one in three ports of the invention；
Attached drawing 4 is the schematic diagram of the two-way AC-DC converter implementation two in three ports of the invention；
Attached drawing 5 is the modulation scheme of the two-way AC-DC converter implementation one in three ports of the invention；
Attached drawing 6 is the schematic diagram of the two-way DCX converter implementation one in three ports of the invention；
Attached drawing 7 is the schematic diagram of the two-way DCX converter implementation two in three ports of the invention；
Attached drawing 8 is the schematic diagram of the two-way DCX converter implementation three in three ports of the invention；
Attached drawing 9 is the schematic diagram of the unidirectional DCX converter implementation one in three ports of the invention；
Attached drawing 10 is the schematic diagram of the unidirectional DCX converter implementation two in three ports of the invention；
Attached drawing 11 is three port AC-DC of the present invention and three-port DC transformer combination type AC/DC convertor schematic diagram；
Attached drawing 12 is 1 equivalent circuit of operation mode of the two-way AC-DC converter implementation one in three ports of the invention；
Attached drawing 13 is 2 equivalent circuit of operation mode of the two-way AC-DC converter implementation one in three ports of the invention；
Attached drawing 14 is 3 equivalent circuit of operation mode of the two-way AC-DC converter implementation one in three ports of the invention；
Designation in the figures above: vGFor single phase ac side power supply, vabcFor three-phase alternating current side power supply, VBFor DC side Power supply；A, b and c are respectively three-phase alternating current side power supply (vabc) the end a, the end b and the end c；1 is the two-way AC-DC converter in three ports Side ports are exchanged, 2 be the two-way AC-DC converter low-voltage direct in three ports port, and 3 be the two-way AC-DC converter high pressure in three ports DC port；4 be the two-way DCX converter low-voltage direct port in three ports, and 5 be the two-way DCX converter high voltage direct current end in three ports Mouthful, 6 be the two-way DCX converter direct current side ports in three ports；LGFor Inductor, La、Lb、LcRespectively a, b, c phase exchanges side Inductance；C1、C2、C3Respectively the first, second and third filter capacitor；Lr1、Lr2Respectively the first and second resonant inductance；Cr1、Cr2Respectively First and second resonant capacitance；T1、T2Respectively the first and second transformer； S1、S2、S3、S4、Sb11、Sb12、Sb21、Sb22Respectively three ends Two-way first, second, third and fourth, five, six, seven, eight switching tube of AC-DC converter of mouth；SHa、SHb、SHcThe two-way AC- in respectively three ports DC converter a, b, c phase first switch tube, SZa、SZb、SZcTwo-way AC-DC converter a, b, c phase second in respectively three ports is opened Guan Guan, SLa1、SLb1、SLc1Two-way AC-DC converter a, b, c phase the third switching tube in respectively three ports, SLa2、SLb2、SLc2Respectively For two-way the 4th switching tube of AC-DC converter a, b, c phase in three ports；Sp1、Sp2、Sp3、Sp4、Ss1、Ss2、Ss3、Ss4、Sp5、Sp6、 Sp7、Sp8The two-way DCX converter first, second, third and fourth, five, six, seven, eight, nine, ten, 11,12 in respectively three ports switchs Pipe；D1、D2、D3、D4Unidirectional the first, second, third and fourth diode of DCX converter in three ports respectively； vc1、vc2、vc3、vc4Respectively adjust Carrier wave processed, veFor modulating wave, vabFor bridge arm mid-point voltage.
Specific embodiment
Technical solution of the present invention is described in detail with reference to the accompanying drawing.
As shown in Fig. 1, the three ports AC-DC is with three-port DC transformer combination type AC/DC convertor by single-phase Exchange side power supply (vG), the two-way AC-DC converter in three ports, the two-way DCX converter in three ports and DC side power supply (VB) composition, Wherein the two-way AC-DC converter in three ports includes exchange side ports (1), low-voltage direct port (2) and high voltage direct current port (3), The two-way DCX converter in three ports includes low-voltage direct port (4), high voltage direct current port (5) and direct current side ports (6)；
The single phase ac side power supply (vG) connection the two-way AC-DC converter in three ports exchange side ports (1), three ports The low-voltage direct port (4) of low-voltage direct port (2) the connection two-way DCX converter in three ports of two-way AC-DC converter, three ends The high voltage direct current port (5) of high voltage direct current port (3) the connection two-way DCX converter in three ports of the two-way AC-DC converter of mouth, three The direct current side ports (6) of the two-way DCX converter in port connect DC side power supply (VB)；
The two-way DCX converter in three ports works in open loop resonant frequency point, low-voltage direct port and high straightening always The current average of flow port is equal, and low-voltage direct port and high voltage direct current port power transfer ratio and its port voltage are than one It causes, voltage of the sum of the voltage of low-voltage direct port and high voltage direct current port always with direct current side ports is kept fixed ratio.
As shown in Fig. 2, the three ports AC-DC and three-port DC transformer combination type AC/DC convertor are by three-phase Exchange side power supply (vabc), the two-way AC-DC converter in three ports, the two-way DCX converter in three ports and DC side power supply (VB) group At wherein three-phase alternating current side power supply (vabc) it include the end a, the end b and the end c, the two-way AC-DC converter in three ports includes exchange side Mouth (1), low-voltage direct port (2) and high voltage direct current port (3), the two-way DCX converter in three ports include low-voltage direct port (4), high voltage direct current port (5) and direct current side ports (6)；
The three-phase alternating current side power supply (vabc) connection the two-way AC-DC converter in three ports exchange side ports (1), three ends The low-voltage direct port (4) of low-voltage direct port (2) the connection two-way DCX converter in three ports of the two-way AC-DC converter of mouth, three The high voltage direct current port (5) of high voltage direct current port (3) the connection two-way DCX converter in three ports of the two-way AC-DC converter in port, The direct current side ports (6) of the two-way DCX converter in three ports connect DC side power supply (VB)；
The two-way DCX converter in three ports works in open loop resonant frequency point, low-voltage direct port and high straightening always The current average of flow port is equal, and low-voltage direct port and high voltage direct current port power transfer ratio and its port voltage are than one It causes, voltage of the sum of the voltage of low-voltage direct port and high voltage direct current port always with direct current side ports is kept fixed ratio.
The single-phase circuit in following scheme one and three in scheme two can be used in the two-way AC-DC converter in three ports Circuitry phase.
Single-phase circuit schematic diagram in scheme one is as shown in Fig. 3: the two-way AC-DC converter in three ports is opened by first Close pipe (S1), second switch (S2), third switching tube (S3), the 4th switching tube (S4), the 5th switching tube (Sb11), the 6th switch Manage (Sb12), the 7th switching tube (Sb21), the 8th switching tube (Sb22), Inductor (LG), the first filter capacitor (C1) and second Filter capacitor (C2) composition；
The single phase ac side power supply (vG) one end be connected in Inductor (LG) one end, Inductor (LG) The other end is connected in first switch tube (S1) source electrode, third switching tube (S3) drain electrode and the 5th switching tube (Sb11) source electrode, it is single Mutually exchange side power supply (vG) the other end be connected in second switch (S2) source electrode, the 4th switching tube (S4) drain electrode and the 7th open Close pipe (Sb21) source electrode, the 5th switching tube (Sb11) drain electrode be connected in the 6th switching tube (Sb12) drain electrode, the 7th switching tube (Sb21) drain electrode be connected in the 8th switching tube (Sb22) drain electrode, the 6th switching tube (Sb12) source electrode be connected in the 8th switching tube (Sb22) Source electrode and the first filter capacitor (C1) one end, i.e. the anode of three ports two-way AC-DC converter low-voltage direct port (2), First switch tube (S1) drain electrode be connected in second switch (S2) drain electrode and the second filter capacitor (C2) one end, i.e. three ports The anode of two-way AC-DC converter high voltage direct current port (3), third switching tube (S3) source electrode be connected in the 4th switching tube (S4) Source electrode, the first filter capacitor (C1) the other end and the second filter capacitor (C2) the other end, i.e. the two-way AC-DC in three ports transformation The public negative terminal of device low-voltage direct port (2) and high voltage direct current port (3).
Three-phase circuit schematic diagram in scheme two is as shown in Fig. 4: the two-way AC-DC converter in three ports is by a phase One switching tube (SHa), b phase first switch tube (SHb), c phase first switch tube (SHc), a phase second switch (SZa), b phase second opens Close pipe (SZb), c phase second switch (SZc), a phase third switching tube (SLa1), the 4th switching tube (S of a phaseLa2), b phase third switch Manage (SLb1), the 4th switching tube (S of b phaseLb2), c phase third switching tube (SLc1), the 4th switching tube (S of c phaseLc2), a phase exchange side electricity Feel (La), b phase Inductor (Lb), c phase Inductor (Lc), the first filter capacitor (C1) and the second filter capacitor (C2) Composition；
The three-phase alternating current side power supply (vabc) the end a be connected in a phase Inductor (La) one end, a phase Inductor (La) the other end be connected in a phase first switch tube (SHa) source electrode, a phase third switching tube (SLa1) source electrode and a phase second open Close pipe (SZa) drain electrode, three-phase alternating current side power supply (vabc) the end b be connected in b phase Inductor (Lb) one end, b phase exchanges side Inductance (Lb) the other end be connected in b phase first switch tube (SHb) source electrode, b phase third switching tube (SLb1) source electrode and b phase second Switching tube (SZb) drain electrode, three-phase alternating current side power supply (vabc) the end c be connected in c phase Inductor (Lc) one end, c phase exchanges Side inductance (Lc) the other end be connected in c phase first switch tube (SHc) source electrode, c phase third switching tube (SLc1) source electrode and c phase Second switch (SZc) drain electrode, a phase third switching tube (SLa1) drain electrode be connected in the 4th switching tube (S of a phaseLa2) drain electrode, b phase Third switching tube (SLb1) drain electrode be connected in the 4th switching tube (S of b phaseLb2) drain electrode, c phase third switching tube (SLc1) drain electrode connect In the 4th switching tube (S of c phaseLc2) drain electrode, the 4th switching tube (S of a phaseLa2) source electrode be connected in the 4th switching tube (S of b phaseLb2) Source electrode, the 4th switching tube (S of c phaseLc2) source electrode and the first filter capacitor (C1) one end, i.e. the two-way AC-DC in three ports transformation The anode of device low-voltage direct port (2), a phase first switch tube (SHa) drain electrode be connected in b phase first switch tube (SHb) drain electrode, c Phase first switch tube (SHc) drain electrode and with the second filter capacitor (C2) one end, i.e. the two-way AC-DC converter high pressure in three ports The anode of DC port (3), a phase second switch (SZa) drain electrode be connected in b phase second switch (SZb) drain electrode, c phase second Switching tube (SZc) drain electrode, the first filter capacitor (C1) the other end and the second filter capacitor (C2) the other end, i.e. three ports The public negative terminal of two-way AC-DC converter low-voltage direct port (2) and high voltage direct current port (3).
In above-mentioned implementation, carrier wave stacking is can be used in the two-way AC-DC converter in three ports of the present invention SPWM modulation, positive half cycle is in first and third operating mode, modulating wave veContinuously, smoothly cutting for mode can be realized by carrier offset It changes, modulating wave veWith carrier wave vc2Knot, converter operate in the first operating mode, and exchange side ports (1) is individually and low-voltage direct Port (2) exchanges power, bridge arm mid-point voltage vabFor 0, VL, modulating wave veWith carrier wave vc1Knot, converter operate in third work Operation mode, exchange side ports (1) exchange power, bridge arm midpoint electricity with low-voltage direct port (2), high voltage direct current port (3) simultaneously Press vabFor VL、 VH, positive half cycle is switched to the second operating mode, and exchange side ports (1) is individually exchanged with high voltage direct current port (3) Power need to be smoothly switched by the mutation of modulating wave come implementation pattern, bridge arm mid-point voltage vabFor 0, VH。
Double half-bridge structure circuits and scheme in following scheme one, two can be used in the two-way DCX converter in three ports Bridge structural circuit of enjoying a double blessing in three.
Double half-bridge structure LLC-DCX circuit diagrams in scheme one are as shown in Fig. 6: the two-way DCX in three ports becomes Parallel operation is by DCX first switch tube (Sp1), DCX second switch (Sp2), DCX third switching tube (Sp3), the 4th switching tube of DCX (Sp4), the 5th switching tube (S of DCXs1), the 6th switching tube (S of DCXs2), the 7th switching tube (S of DCXs3), the 8th switching tube of DCX (Ss4), the first resonant inductance (Lr1), the first resonant capacitance (Cr1), the first transformer (T1) and third filter capacitor (C3) composition, Wherein the first transformer (T1) it include primary side winding (Np1) and vice-side winding (Ns1)；
First transformer (the T1) primary side winding (Np1) Same Name of Ends be connected in the first resonant inductance (Lr1) one end, One resonant inductance (Lr1) the other end be connected in DCX third switching tube (Sp3) the 4th switching tube (S of source electrode and DCXp4) drain electrode, First transformer (T1) primary side winding (Np1) different name end be connected in the first resonant capacitance (Cr1) one end, the first resonant capacitance (Cr1) the other end be connected in DCX first switch tube (Sp1) source electrode and DCX second switch (Sp2) drain electrode, DCX third switch Manage (Sp3) drain electrode be connected in the anode of the two-way DCX converter high voltage direct current port (5) in three ports, DCX first switch tube (Sp1) Drain electrode be connected in the anode of the two-way DCX converter low-voltage direct port (4) in three ports, DCX second switch (Sp2) source electrode connect In the 4th switching tube (S of DCXp4) source electrode, i.e. the two-way DCX converter low-voltage direct port (4) in three ports and high voltage direct current port (5) public negative terminal, the first transformer (T1) vice-side winding (Ns1) Same Name of Ends be connected in the 5th switching tube (S of DCXs1) source electrode With the 6th switching tube (S of DCXs2) drain electrode, the first transformer (T1) vice-side winding (Ns1) different name end be connected in DCX the 7th switch Manage (Ss3) the 8th switching tube (S of source electrode and DCXs4) drain electrode, the 5th switching tube (S of DCXs1) drain electrode be connected in DCX the 7th and open Close pipe (Ss3) drain electrode and third filter capacitor (C3) one end, i.e. the two-way DCX converter direct current side ports (6) in three ports are just End, the 6th switching tube (S of DCXs2) source electrode be connected in the 8th switching tube (S of DCXs4) source electrode, i.e. the two-way DCX converter in three ports The negative terminal of direct current side ports (6).
Double half-bridge structure CLLC-DCX circuit diagrams in scheme two are as shown in Fig. 7: the two-way DCX in three ports becomes Parallel operation is by DCX first switch tube (Sp1), DCX second switch (Sp2), DCX third switching tube (Sp3), the 4th switching tube of DCX (Sp4), the 5th switching tube (S of DCXs1), the 6th switching tube (S of DCXs2), the 7th switching tube (S of DCXs3), the 8th switching tube of DCX (Ss4), the first resonant inductance (Lr1), the second resonant inductance (Lr2), the first resonant capacitance (Cr1), the second resonant capacitance (Cr2), One transformer (T1) and third filter capacitor (C3) composition, wherein the first transformer (T1) it include primary side winding (Np1) and secondary side Winding (Ns1)；
First transformer (the T1) primary side winding (Np1) Same Name of Ends be connected in the first resonant inductance (Lr1) one end, One resonant inductance (Lr1) the other end be connected in DCX third switching tube (Sp3) the 4th switching tube (S of source electrode and DCXp4) drain electrode, First transformer (T1) primary side winding (Np1) different name end be connected in the first resonant capacitance (Cr1) one end, the first resonant capacitance (Cr1) the other end be connected in DCX first switch tube (Sp1) source electrode and DCX second switch (Sp2) drain electrode, DCX third switch Manage (Sp3) drain electrode be connected in the anode of the two-way DCX converter high voltage direct current port (5) in three ports, DCX first switch tube (Sp1) Drain electrode be connected in the anode of the two-way DCX converter low-voltage direct port (4) in three ports, DCX second switch (Sp2) source electrode connect In the 4th switching tube (S of DCXp4) source electrode, i.e. the two-way DCX converter low-voltage direct port (4) in three ports and high voltage direct current port (5) public negative terminal, the first transformer (T1) vice-side winding (Ns1) Same Name of Ends be connected in the second resonant inductance (Lr2) one end, Second resonant inductance (Lr2) the other end be connected in the 5th switching tube (S of DCXs1) the 6th switching tube (S of source electrode and DCXs2) leakage Pole, the first transformer (T1) vice-side winding (Ns1) different name end be connected in the second resonant capacitance (Cr2) one end, the second resonant capacitance (Cr2) the other end be connected in the 7th switching tube (S of DCXs3) the 8th switching tube (S of source electrode and DCXs4) drain electrode, DCX the 5th opens Close pipe (Ss1) drain electrode be connected in the 7th switching tube (S of DCXs3) drain electrode and third filter capacitor (C3) one end, i.e. three ports are double To the anode of DCX converter direct current side ports (6), the 6th switching tube (S of DCXs2) source electrode be connected in the 8th switching tube (S of DCXs4) Source electrode, i.e. the negative terminal of the two-way DCX converter direct current side ports (6) in three ports.
Double full bridge structure DCX circuit diagrams in scheme three are as shown in Fig. 8: the two-way DCX converter in three ports By DCX first switch tube (Sp1), DCX second switch (Sp2), DCX third switching tube (Sp3), the 4th switching tube (S of DCXp4)、 The 5th switching tube (S of DCXs1), the 6th switching tube (S of DCXs2), the 7th switching tube (S of DCXs3), the 8th switching tube (S of DCXs4)、DCX 9th switching tube (Sp5), the tenth switching tube (S of DCXp6), the 11st switching tube (S of DCXp7), the 12nd switching tube (S of DCXp8), One resonant inductance (Lr1), the second resonant inductance (Lr2), third resonant inductance (Lr3), the first resonant capacitance (Cr1), the second resonance electricity Hold (Cr2), third resonant capacitance (Cr3), the first transformer (T1), the second transformer (T2) and third filter capacitor (C3) composition, Wherein the first transformer (T1) it include primary side winding (Np1) and vice-side winding (Ns1), the second transformer (T2) it include primary side winding (Np2) and vice-side winding (Ns2)；
First transformer (the T1) primary side winding (Np1) Same Name of Ends be connected in the first resonant inductance (Lr1) one end, One resonant inductance (Lr1) the other end be connected in DCX third switching tube (Sp3) the 4th switching tube (S of source electrode and DCXp4) drain electrode, First transformer (T1) primary side winding (Np1) different name end be connected in the first resonant capacitance (Cr1) one end, the first resonant capacitance (Cr1) the other end be connected in DCX first switch tube (Sp1) source electrode and DCX second switch (Sp2) drain electrode, DCX third switch Manage (Sp3) drain electrode be connected in DCX first switch tube (Sp1) drain electrode, i.e. the two-way DCX converter high voltage direct current port in three ports (5) anode, DCX second switch (Sp2) source electrode be connected in the 4th switching tube (S of DCXp4) source electrode, i.e. three ports are two-way The public negative terminal of DCX converter low-voltage direct port (4) and high voltage direct current port (5), the second transformer (T2) primary side winding (Np2) Same Name of Ends be connected in the second resonant inductance (Lr2) one end, the second resonant inductance (Lr2) the other end be connected in DCX the tenth One switching tube (Sp7) the 12nd switching tube (S of source electrode and DCXp8) drain electrode, the second transformer (T2) primary side winding (Np2) Different name end is connected in the second resonant capacitance (Cr2) one end, the second resonant capacitance (Cr2) the other end be connected in the 9th switching tube of DCX (Sp5) the tenth switching tube (S of source electrode and DCXp6) drain electrode, the 9th switching tube (S of DCXp5) drain electrode be connected in DCX the 11st and open Close pipe (Sp7) drain electrode, i.e. the anode of the two-way DCX converter low-voltage direct port (4) in three ports, the tenth switching tube (S of DCXp6) Source electrode be connected in the 12nd switching tube (S of DCXp8) source electrode, i.e. the two-way DCX converter low-voltage direct port (4) in three ports and height The public negative terminal of straightening flow port (5), the first transformer (T1) vice-side winding (Ns1) Same Name of Ends be connected in third resonant inductance (Lr3) one end, third resonant inductance (Lr3) the other end be connected in the 5th switching tube (S of DCXs1) source electrode and DCX the 6th switch Manage (Ss2) drain electrode, the first transformer (T1) vice-side winding (Ns1) different name end be connected in the second transformer (T2) vice-side winding (Ns2) Same Name of Ends, the second transformer (T2) vice-side winding (Ns2) different name end be connected in third resonant capacitance (Cr3) one end, third is humorous Shake capacitor (Cr3) the other end be connected in the 7th switching tube (S of DCXs3) the 8th switching tube (S of source electrode and DCXs4) drain electrode, DCX 5th switching tube (Ss1) drain electrode be connected in the 7th switching tube (S of DCXs3) drain electrode and third filter capacitor (C3) one end, i.e., three The anode of the two-way DCX converter direct current side ports (6) in port, the 6th switching tube (S of DCXs2) source electrode be connected in DCX the 8th switch Manage (Ss4) source electrode, i.e. the negative terminal of the two-way DCX converter direct current side ports (6) in three ports.
The three ports AC-DC and three-port DC transformer combination type AC/DC convertor are operating only at rectification mode, The unidirectional DCX converter in three ports can be selected, the electricity of double half-bridge structures in following scheme one can be used in the unidirectional DCX converter in three ports Bridge structural circuit of enjoying a double blessing in road and scheme two.
The unidirectional DCX circuit diagram of double half-bridge structures in scheme one is as shown in Fig. 9: the unidirectional DCX in three ports becomes Parallel operation is by DCX first switch tube (Sp1), DCX second switch (Sp2), DCX third switching tube (Sp3), the 4th switching tube of DCX (Sp4), DCX first diode (D1), the second diode of DCX (D2), DCX third diode (D3), the 4th diode (D of DCX4)、 First resonant inductance (Lr1), the first resonant capacitance (Cr1), the first transformer (T1) and third filter capacitor (C3) composition, wherein the One transformer (T1) it include primary side winding (Np1) and vice-side winding (Ns1)；
First transformer (the T1) primary side winding (Np1) Same Name of Ends be connected in the first resonant inductance (Lr1) one end, One resonant inductance (Lr1) the other end be connected in DCX third switching tube (Sp3) the 4th switching tube (S of source electrode and DCXp4) drain electrode, First transformer (T1) primary side winding (Np1) different name end be connected in the first resonant capacitance (Cr1) one end, the first resonant capacitance (Cr1) the other end be connected in DCX first switch tube (Sp1) source electrode and DCX second switch (Sp2) drain electrode, DCX third switch Manage (Sp3) drain electrode be connected in the anode of the unidirectional DCX converter high voltage direct current port (5) in three ports, DCX first switch tube (Sp1) Drain electrode be connected in the anode of the unidirectional DCX converter low-voltage direct port (4) in three ports, DCX second switch (Sp2) source electrode connect In the 4th switching tube (S of DCXp4) source electrode, i.e. the unidirectional DCX converter low-voltage direct port (4) in three ports and high voltage direct current port (5) public negative terminal, the first transformer (T1) vice-side winding (Ns1) Same Name of Ends be connected in DCX first diode (D1) anode With the second diode of DCX (D2) cathode, the first transformer (T1) vice-side winding (Ns1) different name end be connected in the three or two pole DCX Manage (D3) the 4th diode of anode and DCX cathode, DCX first diode (D1) cathode be connected in DCX third diode (D3) Cathode and third filter capacitor (C3) one end, i.e. the anode of the unidirectional DCX converter direct current side ports (6) in three ports, DCX Two diode (D2) anode be connected in the 4th diode (D of DCX4) anode, i.e. the unidirectional DCX converter direct current side ports in three ports (6) negative terminal.
Bridge structure one-way DCX circuit diagram of enjoying a double blessing in scheme two is as shown in Fig. 10: the unidirectional DCX in three ports becomes Parallel operation is by DCX first switch tube (Sp1), DCX second switch (Sp2), DCX third switching tube (Sp3), the 4th switching tube of DCX (Sp4), DCX first diode (D1), the second diode of DCX (D2), DCX third diode (D3), the 4th diode (D of DCX4)、 The 9th switching tube (S of DCXp5), the tenth switching tube (S of DCXp6), the 11st switching tube (S of DCXp7), the 12nd switching tube of DCX (Sp8), the first resonant inductance (Lr1), the second resonant inductance (Lr2), the first resonant capacitance (Cr1), the second resonant capacitance (Cr2), One transformer (T1), the second transformer (T2) and third filter capacitor (C3) composition, wherein the first transformer (T1) comprising primary side around Group (Np1) and vice-side winding (Ns1), the second transformer (T2) it include primary side winding (Np2) and vice-side winding (Ns2)；
First transformer (the T1) primary side winding (Np1) Same Name of Ends be connected in the first resonant inductance (Lr1) one end, One resonant inductance (Lr1) the other end be connected in DCX third switching tube (Sp3) the 4th switching tube (S of source electrode and DCXp4) drain electrode, First transformer (T1) primary side winding (Np1) different name end be connected in the first resonant capacitance (Cr1) one end, the first resonant capacitance (Cr1) the other end be connected in DCX first switch tube (Sp1) source electrode and DCX second switch (Sp2) drain electrode, DCX third switch Manage (Sp3) drain electrode be connected in DCX first switch tube (Sp1) drain electrode, i.e. the unidirectional DCX converter high voltage direct current port in three ports (5) anode, DCX second switch (Sp2) source electrode be connected in the 4th switching tube (S of DCXp4) source electrode, i.e. three ports are unidirectional The public negative terminal of DCX converter low-voltage direct port (4) and high voltage direct current port (5), the second transformer (T2) primary side winding (Np2) Same Name of Ends be connected in the second resonant inductance (Lr2) one end, the second resonant inductance (Lr2) the other end be connected in DCX the tenth One switching tube (Sp7) the 12nd switching tube (S of source electrode and DCXp8) drain electrode, the second transformer (T2) primary side winding (Np2) Different name end is connected in the second resonant capacitance (Cr2) one end, the second resonant capacitance (Cr2) the other end be connected in the 9th switching tube of DCX (Sp5) the tenth switching tube (S of source electrode and DCXp6) drain electrode, the 9th switching tube (S of DCXp5) drain electrode be connected in DCX the 11st and open Close pipe (Sp7) drain electrode, i.e. the anode of the unidirectional DCX converter low-voltage direct port (4) in three ports, the tenth switching tube (S of DCXp6) Source electrode be connected in the 12nd switching tube (S of DCXp8) source electrode, i.e. the unidirectional DCX converter low-voltage direct port (4) in three ports and height The public negative terminal of straightening flow port (5), the first transformer (T1) vice-side winding (Ns1) Same Name of Ends be connected in DCX first diode (D1) anode and the second diode of DCX (D2) cathode, the first transformer (T1) vice-side winding (Ns1) different name end be connected in second Transformer (T2) vice-side winding (Ns2) Same Name of Ends, the second transformer (T2) vice-side winding (Ns2) different name end be connected in DCX third Diode (D3) the 4th diode of anode and DCX cathode, DCX first diode (D1) cathode be connected in the three or two pole DCX Manage (D3) cathode and third filter capacitor (C3) one end, i.e. the unidirectional DCX converter direct current side ports (6) in three ports are just End, the second diode of DCX (D2) anode be connected in the 4th diode (D of DCX4) anode, i.e. the unidirectional DCX converter in three ports is straight Flow the negative terminal of side ports (6).
In above-mentioned implementation, three ports AC-DC of the present invention and three-port DC transformer combination type are handed over directly The control method of current converter is, by adjusting the action time of the second operating mode, to realize to high-low pressure port transmission power Distribution, that is, realize to high pressure port voltage (VH), low-pressure port voltage (VL) control.High pressure port voltage (VH) keep permanent Determine and be consistently greater than to be equal to single phase alternating current power supply (vG) or three-phase alternating-current supply (vabc) line voltage peak value, low-pressure port voltage (VL) can be changed and be not higher than high pressure port voltage (VH), the two-way DCX converter in three ports works in the resonance frequency of efficiency optimization always Rate point, by adjusting low-pressure port voltage (VL) realize gain between the two-way DCX converter input in three ports, output voltage Match.Meanwhile three the two-way AC-DC converter in port realize DC side power supply (VB) and single phase alternating current power supply (vG) or three-phase alternating current Source (vabc) between transimission power size management.
The present invention program and its working principle are described further below with reference to specific embodiment.
By the two-way DCX converter of the two-way AC-DC converter in 3 three port of attached drawing and 6 three port of attached drawing by the connection in attached drawing 1 Mode is combined, and is obtained such as the three port AC-DC and three-port DC transformer combination type AC/DC convertor in attached drawing 11 Schematic diagram.
In view of working condition is similar in exchange side voltage positive-negative half-cycle for converter, only carried out by taking positive half cycle as an example herein Explanation.There are three types of operation modes in the two-way AC-DC converter positive half cycle in three ports.
Mode 1: as shown in Fig. 12, the 5th switching tube (Sb11), the 6th switching tube (Sb12) and the 4th switching tube (S4) lead It is logical, the 7th switching tube (Sb21), the 8th switching tube (Sb22), first switch tube (S1), second switch (S2) and third switching tube (S3) shutdown, bridge arm mid-point voltage vab=VL。
Mode 2: as shown in Fig. 13, third switching tube (S3) and the 4th switching tube (S4) conducting, the 5th switching tube (Sb11)、 6th switching tube (Sb12), the 7th switching tube (Sb21), the 8th switching tube (Sb22), first switch tube (S1) and second switch (S2) Shutdown, bridge arm mid-point voltage vab=0.
Mode 3: as shown in Fig. 14, first switch tube (S1) and the 4th switching tube (S4) conducting, the 5th switching tube (Sb11)、 6th switching tube (Sb12), the 7th switching tube (Sb21), the 8th switching tube (Sb22), second switch (S2) and third switching tube (S3) Shutdown, bridge arm mid-point voltage vab=VH。
Under first operating mode, the two-way AC-DC converter exchange side ports in three ports individually become with the two-way DCX in three ports Parallel operation low-voltage direct port transmission power, mode 1 and the switching of 2 high frequency of mode under the operating mode.
Under second operating mode, the two-way AC-DC converter exchange side ports in three ports individually become with the two-way DCX in three ports Parallel operation high voltage direct current port transmission power, mode 3 and the switching of 2 high frequency of mode under the operating mode.
Under third operating mode, the two-way AC-DC converter exchange side ports in three ports become with the two-way DCX in three ports simultaneously Parallel operation high and low pressure DC port transimission power, mode 1 and the switching of 3 high frequency of mode under the operating mode.
The two-way DCX converter in three ports of the present invention works in open loop resonant frequency point, low-voltage direct port always (4) equal with the current average of high voltage direct current port (5), low-voltage direct port (4) and high voltage direct current port (5) power transmission Than being equal to its port voltage ratio, the sum of voltage of low-voltage direct port (4) and high voltage direct current port (5) always with direct current side ports (6) voltage is kept fixed ratio.
The control method of three ports AC-DC of the present invention and three-port DC transformer combination type AC/DC convertor Are as follows: switched by the operating mode of the two-way AC-DC converter in three ports, adjusts the action time of the second operating mode, realization pair The distribution of high-low pressure port transmission power is realized to high pressure port voltage since high-low pressure port current average value is equal (VH), low-pressure port voltage (VL) control.High pressure port voltage (VH) keep constant and be consistently greater than equal to single-phase alternating current Source (vG) or three-phase alternating-current supply (vabc) line voltage peak value, low-pressure port voltage (VL) can be changed and be not higher than high pressure port voltage (VH), the two-way DCX converter in three ports works in the resonant frequency point of efficiency optimization always, by adjusting low-pressure port voltage (VL) realize gain match between the two-way DCX converter input in three ports, output voltage.With the two-way DC-AC of traditional two-stage type Converter is similar, and the two-way AC-DC converter in three ports realizes DC side power supply (VB) and single phase alternating current power supply (vG) or three-phase alternating current Power supply (vabc) between transimission power size management.
According to the description of working principle above, the present invention uses three Port Translation devices, double DC bus schemes, DC bus Voltage, alternating current-direct current side transimission power size are controlled by the two-way AC-DC converter in three ports, and rear class can use efficient three The two-way DCX converter in port realizes electrical isolation, meanwhile, by adjusting low-pressure port voltage (VL) realize the two-way DCX in three ports Gain match between converter input, output voltage.Two-way AC-DC transformation can be substantially improved compared to traditional two-stage type scheme Device whole efficiency, AC-DC bidirectional electric energy that particularly suitable DC voltage significantlys change convert occasion, electric car, The fields such as energy-storage system have significant application value and application prospect.
The above is only a 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 are also answered It is considered as protection scope of the present invention.

Claims (11)

1. three port AC-DC of one kind and three-port DC transformer combination type AC/DC convertor, it is characterised in that:
The three ports AC-DC and three-port DC transformer combination type AC/DC convertor are by single phase ac side power supply (vG), three The two-way AC-DC converter in port, the two-way DCX converter in three ports and DC side power supply (VB) composition, wherein the two-way AC- in three ports DC converter includes exchange side ports (1), low-voltage direct port (2) and high voltage direct current port (3), the two-way DCX transformation in three ports Device includes low-voltage direct port (4), high voltage direct current port (5) and direct current side ports (6)；
The single phase ac side power supply (vG) the connection two-way AC-DC converter in three ports exchange side ports (1), three ports are two-way The low-voltage direct port (4) of low-voltage direct port (2) the connection two-way DCX converter in three ports of AC-DC converter, three ports are double To the high voltage direct current port (5) of the high voltage direct current port (3) of the AC-DC converter connection two-way DCX converter in three ports, three ports The direct current side ports (6) of two-way DCX converter connect DC side power supply (VB)；
The two-way DCX converter in three ports works in open loop resonant frequency point, low-voltage direct port and high voltage direct current end always The current average of mouth is equal, and low-voltage direct port and high voltage direct current port power transfer ratio and its port voltage are low than consistent The voltage of the sum of straightening flow port and the voltage of high voltage direct current port always with direct current side ports is kept fixed ratio.
2. three port AC-DC of one kind and three-port DC transformer combination type AC/DC convertor, it is characterised in that:
The three ports AC-DC and three-port DC transformer combination type AC/DC convertor are by three-phase alternating current side power supply (vabc)、 The two-way AC-DC converter in three ports, the two-way DCX converter in three ports and DC side power supply (VB) composition, wherein three-phase alternating current side Power supply (vabc) it include the end a, the end b and the end c, the two-way AC-DC converter in three ports includes exchange side ports (1), low-voltage direct port (2) and high voltage direct current port (3), the two-way DCX converter in three ports include low-voltage direct port (4), high voltage direct current port (5) and Direct current side ports (6)；
The three-phase alternating current side power supply (vabc) the connection two-way AC-DC converter in three ports exchange side ports (1), three ports are double To the low-voltage direct port (4) of the low-voltage direct port (2) of the AC-DC converter connection two-way DCX converter in three ports, three ports The high voltage direct current port (5) of high voltage direct current port (3) the connection two-way DCX converter in three ports of two-way AC-DC converter, three ends The direct current side ports (6) of the two-way DCX converter of mouth connect DC side power supply (VB)；
The two-way DCX converter in three ports works in open loop resonant frequency point, low-voltage direct port and high voltage direct current end always The current average of mouth is equal, and low-voltage direct port and high voltage direct current port power transfer ratio and its port voltage are low than consistent The voltage of the sum of straightening flow port and the voltage of high voltage direct current port always with direct current side ports is kept fixed ratio.
3. three ports AC-DC according to claim 1 and three-port DC transformer combination type AC/DC convertor, special Sign is that the two-way AC-DC converter in three ports is by first switch tube (S1), second switch (S2), third switching tube (S3), the 4th switching tube (S4), the 5th switching tube (Sb11), the 6th switching tube (Sb12), the 7th switching tube (Sb21), the 8th switching tube (Sb22), Inductor (LG), the first filter capacitor (C1) and the second filter capacitor (C2) composition；
The single phase ac side power supply (vG) one end be connected in Inductor (LG) one end, Inductor (LG) it is another End is connected in first switch tube (S1) source electrode, third switching tube (S3) drain electrode and the 5th switching tube (Sb11) source electrode, blow-up Flow side power supply (vG) the other end be connected in second switch (S2) source electrode, the 4th switching tube (S4) drain electrode and the 7th switching tube (Sb21) source electrode, the 5th switching tube (Sb11) drain electrode be connected in the 6th switching tube (Sb12) drain electrode, the 7th switching tube (Sb21) Drain electrode is connected in the 8th switching tube (Sb22) drain electrode, the 6th switching tube (Sb12) source electrode be connected in the 8th switching tube (Sb22) source electrode With the first filter capacitor (C1) one end, i.e. the anode of three ports two-way AC-DC converter low-voltage direct port (2), first opens Close pipe (S1) drain electrode be connected in second switch (S2) drain electrode and the second filter capacitor (C2) one end, i.e. the two-way AC- in three ports The anode of DC converter high voltage direct current port (3), third switching tube (S3) source electrode be connected in the 4th switching tube (S4) source electrode, One filter capacitor (C1) the other end and the second filter capacitor (C2) the other end, i.e. the two-way AC-DC converter low-pressure direct in three ports The public negative terminal of flow port (2) and high voltage direct current port (3).
4. three ports AC-DC according to claim 2 and three-port DC transformer combination type AC/DC convertor, special Sign is that the two-way AC-DC converter in three ports is by a phase first switch tube (SHa), b phase first switch tube (SHb), c phase One switching tube (SHc), a phase second switch (SZa), b phase second switch (SZb), c phase second switch (SZc), a phase third opens Close pipe (SLa1), the 4th switching tube (S of a phaseLa2), b phase third switching tube (SLb1), the 4th switching tube (S of b phaseLb2), c phase third opens Close pipe (SLc1), the 4th switching tube (S of c phaseLc2), a phase Inductor (La), b phase Inductor (Lb), c phase Inductor (Lc), the first filter capacitor (C1) and the second filter capacitor (C2) composition；
The three-phase alternating current side power supply (vabc) the end a be connected in a phase Inductor (La) one end, a phase Inductor (La) The other end be connected in a phase first switch tube (SHa) source electrode, a phase third switching tube (SLa1) source electrode and a phase second switch (SZa) drain electrode, three-phase alternating current side power supply (vabc) the end b be connected in b phase Inductor (Lb) one end, b phase Inductor (Lb) the other end be connected in b phase first switch tube (SHb) source electrode, b phase third switching tube (SLb1) source electrode and b phase second switch Manage (SZb) drain electrode, three-phase alternating current side power supply (vabc) the end c be connected in c phase Inductor (Lc) one end, c phase exchange side electricity Feel (Lc) the other end be connected in c phase first switch tube (SHc) source electrode, c phase third switching tube (SLc1) source electrode and c phase second open Close pipe (SZc) drain electrode, a phase third switching tube (SLa1) drain electrode be connected in the 4th switching tube (S of a phaseLa2) drain electrode, b phase third opens Close pipe (SLb1) drain electrode be connected in the 4th switching tube (S of b phaseLb2) drain electrode, c phase third switching tube (SLc1) drain electrode be connected in c phase Four switching tube (SLc2) drain electrode, the 4th switching tube (S of a phaseLa2) source electrode be connected in the 4th switching tube (S of b phaseLb2) source electrode, c phase 4th switching tube (SLc2) source electrode and the first filter capacitor (C1) one end, i.e. the two-way AC-DC converter low-voltage direct in three ports The anode of port (2), a phase first switch tube (SHa) drain electrode be connected in b phase first switch tube (SHb) drain electrode, c phase first switch Manage (SHc) drain electrode and with the second filter capacitor (C2) one end, i.e. three ports two-way AC-DC converter high voltage direct current port (3) Anode, a phase second switch (SZa) drain electrode be connected in b phase second switch (SZb) drain electrode, c phase second switch (SZc) Drain electrode, the first filter capacitor (C1) the other end and the second filter capacitor (C2) the other end, i.e. the two-way AC-DC in three ports becomes The public negative terminal of parallel operation low-voltage direct port (2) and high voltage direct current port (3).
5. according to claim 1 with three ports AC-DC as claimed in claim 2 and three-port DC transformer combination type alternating current-direct current Converter, which is characterized in that the SPWM modulation of carrier wave stacking can be used in the two-way AC-DC converter in three ports, and positive half cycle exists First and third operating mode, modulating wave veContinuously, smoothly switching for mode, modulating wave v can be realized by carrier offseteWith carrier wave vc2Knot, converter operate in the first operating mode, and exchange side ports (1) individually exchanges power, bridge with low-voltage direct port (2) Arm mid-point voltage vabFor 0, VL, modulating wave veWith carrier wave vc1Knot, converter operate in third operating mode, exchange side ports (1) power, bridge arm mid-point voltage v are exchanged with low-voltage direct port (2), high voltage direct current port (3) simultaneouslyabFor VL、VH, positive half cycle It is switched to the second operating mode, exchange side ports (1) individually exchanges power with high voltage direct current port (3), need to pass through modulating wave Mutation carrys out implementation pattern and smoothly switches, bridge arm mid-point voltage vabFor 0, VH。
6. according to claim 1 with three ports AC-DC as claimed in claim 2 and three-port DC transformer combination type alternating current-direct current Converter, which is characterized in that the two-way DCX converter in three ports is by DCX first switch tube (Sp1), DCX second switch (Sp2), DCX third switching tube (Sp3), the 4th switching tube (S of DCXp4), the 5th switching tube (S of DCXs1), the 6th switching tube of DCX (Ss2), the 7th switching tube (S of DCXs3), the 8th switching tube (S of DCXs4), the first resonant inductance (Lr1), the first resonant capacitance (Cr1)、 First transformer (T1) and third filter capacitor (C3) composition, wherein the first transformer (T1) it include primary side winding (Np1) and secondary side Winding (Ns1)；
First transformer (the T1) primary side winding (Np1) Same Name of Ends be connected in the first resonant inductance (Lr1) one end, the first resonance Inductance (Lr1) the other end be connected in DCX third switching tube (Sp3) the 4th switching tube (S of source electrode and DCXp4) drain electrode, first become Depressor (T1) primary side winding (Np1) different name end be connected in the first resonant capacitance (Cr1) one end, the first resonant capacitance (Cr1) it is another One end is connected in DCX first switch tube (Sp1) source electrode and DCX second switch (Sp2) drain electrode, DCX third switching tube (Sp3) Drain electrode is connected in the anode of the two-way DCX converter high voltage direct current port (5) in three ports, DCX first switch tube (Sp1) drain electrode be connected in The anode of the two-way DCX converter low-voltage direct port (4) in three ports, DCX second switch (Sp2) source electrode be connected in DCX the 4th and open Close pipe (Sp4) source electrode, i.e. the two-way DCX converter low-voltage direct port (4) in three ports and high voltage direct current port (5) it is public negative End, the first transformer (T1) vice-side winding (Ns1) Same Name of Ends be connected in the 5th switching tube (S of DCXs1) source electrode and DCX the 6th switch Manage (Ss2) drain electrode, the first transformer (T1) vice-side winding (Ns1) different name end be connected in the 7th switching tube (S of DCXs3) source electrode and The 8th switching tube (S of DCXs4) drain electrode, the 5th switching tube (S of DCXs1) drain electrode be connected in the 7th switching tube (S of DCXs3) drain electrode and Third filter capacitor (C3) one end, i.e. the anode of the two-way DCX converter direct current side ports (6) in three ports, the 6th switching tube of DCX (Ss2) source electrode be connected in the 8th switching tube (S of DCXs4) source electrode, i.e. the two-way DCX converter direct current side ports (6) in three ports it is negative End.
7. according to claim 1 with three ports AC-DC as claimed in claim 2 and three-port DC transformer combination type alternating current-direct current Converter, which is characterized in that the two-way DCX converter in three ports is by DCX first switch tube (Sp1), DCX second switch (Sp2), DCX third switching tube (Sp3), the 4th switching tube (S of DCXp4), the 5th switching tube (S of DCXs1), the 6th switching tube of DCX (Ss2), the 7th switching tube (S of DCXs3), the 8th switching tube (S of DCXs4), the first resonant inductance (Lr1), the second resonant inductance (Lr2)、 First resonant capacitance (Cr1), the second resonant capacitance (Cr2), the first transformer (T1) and third filter capacitor (C3) composition, wherein the One transformer (T1) it include primary side winding (Np1) and vice-side winding (Ns1)；
First transformer (the T1) primary side winding (Np1) Same Name of Ends be connected in the first resonant inductance (Lr1) one end, the first resonance Inductance (Lr1) the other end be connected in DCX third switching tube (Sp3) the 4th switching tube (S of source electrode and DCXp4) drain electrode, first become Depressor (T1) primary side winding (Np1) different name end be connected in the first resonant capacitance (Cr1) one end, the first resonant capacitance (Cr1) it is another One end is connected in DCX first switch tube (Sp1) source electrode and DCX second switch (Sp2) drain electrode, DCX third switching tube (Sp3) Drain electrode is connected in the anode of the two-way DCX converter high voltage direct current port (5) in three ports, DCX first switch tube (Sp1) drain electrode be connected in The anode of the two-way DCX converter low-voltage direct port (4) in three ports, DCX second switch (Sp2) source electrode be connected in DCX the 4th and open Close pipe (Sp4) source electrode, i.e. the two-way DCX converter low-voltage direct port (4) in three ports and high voltage direct current port (5) it is public negative End, the first transformer (T1) vice-side winding (Ns1) Same Name of Ends be connected in the second resonant inductance (Lr2) one end, the second resonant inductance (Lr2) the other end be connected in the 5th switching tube (S of DCXs1) the 6th switching tube (S of source electrode and DCXs2) drain electrode, the first transformer (T1) vice-side winding (Ns1) different name end be connected in the second resonant capacitance (Cr2) one end, the second resonant capacitance (Cr2) the other end It is connected in the 7th switching tube (S of DCXs3) the 8th switching tube (S of source electrode and DCXs4) drain electrode, the 5th switching tube (S of DCXs1) drain electrode It is connected in the 7th switching tube (S of DCXs3) drain electrode and third filter capacitor (C3) one end, i.e. the two-way DCX converter direct current in three ports The anode of side ports (6), the 6th switching tube (S of DCXs2) source electrode be connected in the 8th switching tube (S of DCXs4) source electrode, i.e. three ports The negative terminal of two-way DCX converter direct current side ports (6).
8. according to claim 1 with three ports AC-DC as claimed in claim 2 and three-port DC transformer combination type alternating current-direct current Converter, which is characterized in that the two-way DCX converter in three ports is by DCX first switch tube (Sp1), DCX second switch (Sp2), DCX third switching tube (Sp3), the 4th switching tube (S of DCXp4), the 5th switching tube (S of DCXs1), the 6th switching tube of DCX (Ss2), the 7th switching tube (S of DCXs3), the 8th switching tube (S of DCXs4), the 9th switching tube (S of DCXp5), the tenth switching tube of DCX (Sp6), the 11st switching tube (S of DCXp7), the 12nd switching tube (S of DCXp8), the first resonant inductance (Lr1), the second resonant inductance (Lr2), third resonant inductance (Lr3), the first resonant capacitance (Cr1), the second resonant capacitance (Cr2), third resonant capacitance (Cr3), One transformer (T1), the second transformer (T2) and third filter capacitor (C3) composition, wherein the first transformer (T1) comprising primary side around Group (Np1) and vice-side winding (Ns1), the second transformer (T2) it include primary side winding (Np2) and vice-side winding (Ns2)；
First transformer (the T1) primary side winding (Np1) Same Name of Ends be connected in the first resonant inductance (Lr1) one end, the first resonance Inductance (Lr1) the other end be connected in DCX third switching tube (Sp3) the 4th switching tube (S of source electrode and DCXp4) drain electrode, first become Depressor (T1) primary side winding (Np1) different name end be connected in the first resonant capacitance (Cr1) one end, the first resonant capacitance (Cr1) it is another One end is connected in DCX first switch tube (Sp1) source electrode and DCX second switch (Sp2) drain electrode, DCX third switching tube (Sp3) Drain electrode is connected in DCX first switch tube (Sp1) drain electrode, i.e. the anode of the two-way DCX converter high voltage direct current port (5) in three ports, DCX second switch (Sp2) source electrode be connected in the 4th switching tube (S of DCXp4) source electrode, i.e. the two-way DCX converter low pressure in three ports The public negative terminal of DC port (4) and high voltage direct current port (5), the second transformer (T2) primary side winding (Np2) Same Name of Ends be connected in Second resonant inductance (Lr2) one end, the second resonant inductance (Lr2) the other end be connected in the 11st switching tube (S of DCXp7) source electrode With the 12nd switching tube (S of DCXp8) drain electrode, the second transformer (T2) primary side winding (Np2) different name end be connected in the second resonance electricity Hold (Cr2) one end, the second resonant capacitance (Cr2) the other end be connected in the 9th switching tube (S of DCXp5) source electrode and DCX the tenth open Close pipe (Sp6) drain electrode, the 9th switching tube (S of DCXp5) drain electrode be connected in the 11st switching tube (S of DCXp7) drain electrode, i.e. three ports The anode of two-way DCX converter low-voltage direct port (4), the tenth switching tube (S of DCXp6) source electrode be connected in the 12nd switching tube of DCX (Sp8) source electrode, i.e. the public negative terminal of three ports two-way DCX converter low-voltage direct port (4) and high voltage direct current port (5), One transformer (T1) vice-side winding (Ns1) Same Name of Ends be connected in third resonant inductance (Lr3) one end, third resonant inductance (Lr3) The other end be connected in the 5th switching tube (S of DCXs1) the 6th switching tube (S of source electrode and DCXs2) drain electrode, the first transformer (T1) secondary Side winding (Ns1) different name end be connected in the second transformer (T2) vice-side winding (Ns2) Same Name of Ends, the second transformer (T2) secondary side around Group (Ns2) different name end be connected in third resonant capacitance (Cr3) one end, third resonant capacitance (Cr3) the other end be connected in DCX the 7th Switching tube (Ss3) the 8th switching tube (S of source electrode and DCXs4) drain electrode, the 5th switching tube (S of DCXs1) drain electrode be connected in DCX the 7th Switching tube (Ss3) drain electrode and third filter capacitor (C3) one end, i.e. the two-way DCX converter direct current side ports (6) in three ports Anode, the 6th switching tube (S of DCXs2) source electrode be connected in the 8th switching tube (S of DCXs4) source electrode, i.e. the two-way DCX in three ports transformation The negative terminal of device direct current side ports (6).
9. according to claim 1 with three ports AC-DC as claimed in claim 2 and three-port DC transformer combination type alternating current-direct current Converter, which is characterized in that the converter is operating only at rectification mode, and the unidirectional DCX converter in three ports, three ports can be selected Unidirectional DCX converter is by DCX first switch tube (Sp1), DCX second switch (Sp2), DCX third switching tube (Sp3), DCX the 4th Switching tube (Sp4), DCX first diode (D1), the second diode of DCX (D2), DCX third diode (D3), the four or two pole DCX Manage (D4), the first resonant inductance (Lr1), the first resonant capacitance (Cr1), the first transformer (T1) and third filter capacitor (C3) group At wherein the first transformer (T1) it include primary side winding (Np1) and vice-side winding (Ns1)；
First transformer (the T1) primary side winding (Np1) Same Name of Ends be connected in the first resonant inductance (Lr1) one end, the first resonance Inductance (Lr1) the other end be connected in DCX third switching tube (Sp3) the 4th switching tube (S of source electrode and DCXp4) drain electrode, first become Depressor (T1) primary side winding (Np1) different name end be connected in the first resonant capacitance (Cr1) one end, the first resonant capacitance (Cr1) it is another One end is connected in DCX first switch tube (Sp1) source electrode and DCX second switch (Sp2) drain electrode, DCX third switching tube (Sp3) Drain electrode is connected in the anode of the unidirectional DCX converter high voltage direct current port (5) in three ports, DCX first switch tube (Sp1) drain electrode be connected in The anode of the unidirectional DCX converter low-voltage direct port (4) in three ports, DCX second switch (Sp2) source electrode be connected in DCX the 4th and open Close pipe (Sp4) source electrode, i.e. the unidirectional DCX converter low-voltage direct port (4) in three ports and high voltage direct current port (5) it is public negative End, the first transformer (T1) vice-side winding (Ns1) Same Name of Ends be connected in DCX first diode (D1) the two or two pole of anode and DCX Manage (D2) cathode, the first transformer (T1) vice-side winding (Ns1) different name end be connected in DCX third diode (D3) anode and The cathode of the 4th diode of DCX, DCX first diode (D1) cathode be connected in DCX third diode (D3) cathode and third filter Wave capacitor (C3) one end, i.e. the anode of the unidirectional DCX converter direct current side ports (6) in three ports, the second diode of DCX (D2) Anode is connected in the 4th diode (D of DCX4) anode, i.e. the negative terminal of the unidirectional DCX converter direct current side ports (6) in three ports.
10. being handed over according to claim 1 with three ports AC-DC as claimed in claim 2 and three-port DC transformer combination type straight Current converter, which is characterized in that the converter is operating only at rectification mode, and the unidirectional DCX converter in three ports, three ends can be selected The unidirectional DCX converter of mouth is by DCX first switch tube (Sp1), DCX second switch (Sp2), DCX third switching tube (Sp3), DCX Four switching tube (Sp4), DCX first diode (D1), the second diode of DCX (D2), DCX third diode (D3), the four or two pole DCX Manage (D4), the 9th switching tube (S of DCXp5), the tenth switching tube (S of DCXp6), the 11st switching tube (S of DCXp7), DCX the 12nd switch Manage (Sp8), the first resonant inductance (Lr1), the second resonant inductance (Lr2), the first resonant capacitance (Cr1), the second resonant capacitance (Cr2)、 First transformer (T1), the second transformer (T2) and third filter capacitor (C3) composition, wherein the first transformer (T1) it include primary side Winding (Np1) and vice-side winding (Ns1), the second transformer (T2) it include primary side winding (Np2) and vice-side winding (Ns2)；
First transformer (the T1) primary side winding (Np1) Same Name of Ends be connected in the first resonant inductance (Lr1) one end, the first resonance Inductance (Lr1) the other end be connected in DCX third switching tube (Sp3) the 4th switching tube (S of source electrode and DCXp4) drain electrode, first become Depressor (T1) primary side winding (Np1) different name end be connected in the first resonant capacitance (Cr1) one end, the first resonant capacitance (Cr1) it is another One end is connected in DCX first switch tube (Sp1) source electrode and DCX second switch (Sp2) drain electrode, DCX third switching tube (Sp3) Drain electrode is connected in DCX first switch tube (Sp1) drain electrode, i.e. the anode of the unidirectional DCX converter high voltage direct current port (5) in three ports, DCX second switch (Sp2) source electrode be connected in the 4th switching tube (S of DCXp4) source electrode, i.e. the unidirectional DCX converter low pressure in three ports The public negative terminal of DC port (4) and high voltage direct current port (5), the second transformer (T2) primary side winding (Np2) Same Name of Ends be connected in Second resonant inductance (Lr2) one end, the second resonant inductance (Lr2) the other end be connected in the 11st switching tube (S of DCXp7) source electrode With the 12nd switching tube (S of DCXp8) drain electrode, the second transformer (T2) primary side winding (Np2) different name end be connected in the second resonance electricity Hold (Cr2) one end, the second resonant capacitance (Cr2) the other end be connected in the 9th switching tube (S of DCXp5) source electrode and DCX the tenth open Close pipe (Sp6) drain electrode, the 9th switching tube (S of DCXp5) drain electrode be connected in the 11st switching tube (S of DCXp7) drain electrode, i.e. three ports The anode of unidirectional DCX converter low-voltage direct port (4), the tenth switching tube (S of DCXp6) source electrode be connected in the 12nd switching tube of DCX (Sp8) source electrode, i.e. the public negative terminal of three ports unidirectional DCX converter low-voltage direct port (4) and high voltage direct current port (5), One transformer (T1) vice-side winding (Ns1) Same Name of Ends be connected in DCX first diode (D1) anode and the second diode of DCX (D2) Cathode, the first transformer (T1) vice-side winding (Ns1) different name end be connected in the second transformer (T2) vice-side winding (Ns2) it is of the same name End, the second transformer (T2) vice-side winding (Ns2) different name end be connected in DCX third diode (D3) the four or two pole of anode and DCX The cathode of pipe, DCX first diode (D1) cathode be connected in DCX third diode (D3) cathode and third filter capacitor (C3) One end, i.e. the anode of the unidirectional DCX converter direct current side ports (6) in three ports, the second diode of DCX (D2) anode be connected in The 4th diode (D of DCX4) anode, i.e. the negative terminal of the unidirectional DCX converter direct current side ports (6) in three ports.
11. being handed over according to claim 1 with three ports AC-DC as claimed in claim 2 and three-port DC transformer combination type straight The control method of current converter, which is characterized in that the effect that the two-way AC-DC converter in three ports passes through the second operating mode of adjusting Time realizes the distribution to high-low pressure port transmission power, that is, realizes to high pressure port voltage (VH), low-pressure port voltage (VL) Control.High pressure port voltage (VH) keep constant and be consistently greater than equal to single phase alternating current power supply (vG) or three-phase alternating-current supply (vabc) line voltage peak value, low-pressure port voltage (VL) can be changed and be not higher than high pressure port voltage (VH), the two-way DCX in three ports becomes Parallel operation works in the resonant frequency point of efficiency optimization always, by adjusting low-pressure port voltage (VL) realize the two-way DCX in three ports Gain match between converter input, output voltage.Meanwhile three the two-way AC-DC converter in port realize DC side power supply (VB) With single phase alternating current power supply (vG) or three-phase alternating-current supply (vabc) between transimission power size management.
CN201811165548.6A 2018-09-28 2018-09-28 Three port AC-DC of one kind and three-port DC transformer combination type AC/DC convertor and its control method Pending CN109494999A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110350814A (en) * 2019-07-26 2019-10-18 浙江大学 A kind of vector control method controlling each DC port power in three-phase multi-port current transformer
CN113890376A (en) * 2021-10-14 2022-01-04 东南大学 Isolated DC-DC converter topology with wide input voltage and control method thereof
CN114400697A (en) * 2021-12-01 2022-04-26 深圳市海和科技股份有限公司 Two-way mobile power generation circuit and two-way mobile power generation terminal equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105846696A (en) * 2016-03-21 2016-08-10 南京航空航天大学 Two-stage type AC-DC converter and control method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105846696A (en) * 2016-03-21 2016-08-10 南京航空航天大学 Two-stage type AC-DC converter and control method thereof

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
HARIHARAN KRISHNASWAMI等: "Three-Port Series-Resonant DC–DC Converter to Interface Renewable Energy Sources With Bidirectional Load and Energy Storage Ports", 《IEEE TRANSACTIONS ON POWER ELECTRONICS》 *
孙孝峰等: "双串联谐振双向三端口DC/DC变换器选频解耦控制研究", 《太阳能学报》 *
陈润若等: "一种适用于宽输入电压范围的三端口变换器", 《中国电机工程学报》 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110350814A (en) * 2019-07-26 2019-10-18 浙江大学 A kind of vector control method controlling each DC port power in three-phase multi-port current transformer
CN110350814B (en) * 2019-07-26 2020-08-04 浙江大学 Vector control method for controlling power of each direct current port in three-phase multi-port converter
CN113890376A (en) * 2021-10-14 2022-01-04 东南大学 Isolated DC-DC converter topology with wide input voltage and control method thereof
CN113890376B (en) * 2021-10-14 2023-08-22 东南大学 Isolation type DC-DC converter topology with wide input voltage and control method thereof
CN114400697A (en) * 2021-12-01 2022-04-26 深圳市海和科技股份有限公司 Two-way mobile power generation circuit and two-way mobile power generation terminal equipment
CN114400697B (en) * 2021-12-01 2022-11-18 深圳市海和科技股份有限公司 Two-way mobile power generation circuit and two-way mobile power generation terminal equipment

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