CN110224606A - A kind of phase-shift soft switch topology unit and its reversible transducer - Google Patents

A kind of phase-shift soft switch topology unit and its reversible transducer Download PDF

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Publication number
CN110224606A
CN110224606A CN201910385221.8A CN201910385221A CN110224606A CN 110224606 A CN110224606 A CN 110224606A CN 201910385221 A CN201910385221 A CN 201910385221A CN 110224606 A CN110224606 A CN 110224606A
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China
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switching tube
phase
soft switch
transformer
topology unit
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Chinese (zh)
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余仕君
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Individual
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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
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0048—Circuits or arrangements for reducing losses
    • H02M1/0054—Transistor switching losses
    • H02M1/0058—Transistor switching losses by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

The invention discloses a kind of phase-shift soft switch topology unit and its reversible transducers, phase-shift soft switch topology unit includes first switch tube Q1 and its anti-paralleled diode D1 and its junction capacity C1, second switch Q2 and its anti-paralleled diode D2 and its junction capacity C2, third switching tube Q3 and its anti-paralleled diode D3 and its junction capacity C3, first switch tube Q4 and its anti-paralleled diode D4 and its junction capacity C4 and transformer T, first switch tube Q1 and second switch Q2 is connected in series, third switching tube Q3 and the 4th switching tube Q4 is connected in series, the Same Name of Ends of the primary coil of transformer T is connected on the connecting line of first switch tube Q1 and second switch Q2 by inductance L, the Same Name of Ends of secondary coil is connected on the connecting line of third switching tube Q3 and the 4th switching tube Q4；The present invention has the advantages that saving some components, there is preferable EMI characteristic and input and output side filtering characteristic.

Description

A kind of phase-shift soft switch topology unit and its reversible transducer
Technical field
The present invention relates to electricity field, it is more particularly to a kind of phase-shift soft switch topology unit and its reversible transducer.
Background technique
Dcdc converter be a kind of direct current is changed into another direct current and be able to achieve electrical isolation simultaneously energy can The equipment for controlling two-way flow.With the continuous development of society with progress, demand of the mankind to the energy increasingly increase, energy storage, electronic The development of the industries such as vehicle is getting faster.In order to meet the market demand, more and more dcdc converters are pushed into market.But it is several at present All two-way soft switch DC/AC converters use two quasi-tradition soft switch topologies.Wherein the first kind is by main loop of power circuit In the devices resonance such as increased capacitor, inductance make all or part of switching tube realize the Sofe Switch such as Sofe Switch, such as LLC, LCL Topology, LLC resonance soft-switching dcdc converter topological diagram such as Fig. 1 need in main loop of power circuit to introduce capacitor Cr and inductance To achieve the purpose that resonance, these additional devices can bring the increase of cost and the rising of failure rate by device Lr1 and Lr2.
As shown in Fig. 2, being the circuit diagram of the second class of prior art phase shifting full bridge soft switch dcdc converter, pass through Phase shift inductance in main loop of power circuit makes all or part of switching tube realize Sofe Switch, single function the hysteresis of electric current Rate transmission transformer two sides need 4 switching tubes respectively to realize that full-bridge converts, and are additionally, due to the electric current in its main loop of power circuit The EMI characteristic of trapezoidal wave, trapezoidal wave is poor, while trapezoidal wave will increase the burden of input and output filter circuit, main loop of power circuit Current waveform such as Fig. 3, horizontal axis are time (unit: second), and the longitudinal axis is current value (unit: peace), phase shift voltage across the inductor wave Shaped like Fig. 4, horizontal axis is time (unit: second), and the longitudinal axis is voltage (unit: kilovolt), and the level of phase shift voltage across the inductor is less.
Summary of the invention
It is complete by resonance circuit or phase shift that technical problem to be solved by the present invention lies in the reversible transducers of the prior art When bridge realizes Sofe Switch, additional resonating device or device for power switching bring asking for the increase of cost and the rising of failure rate Topic.
The present invention is to solve a kind of above-mentioned technical problem: phase-shift soft switch topology unit by the following technical programs, packet Include first switch tube Q1 and its anti-paralleled diode D1 and its junction capacity C1, second switch Q2 and its anti-paralleled diode D2 and Its junction capacity C2, third switching tube Q3 and its anti-paralleled diode D3 and its junction capacity C3, first switch tube Q4 and its inverse parallel Diode D4 and its junction capacity C4 and transformer T, the first switch tube Q1 and second switch Q2 are connected in series, and third is opened It closes pipe Q3 and the 4th switching tube Q4 to be connected in series, the transformer T includes primary coil and secondary coil, the primary coil Same Name of Ends is connected on the connecting line of the first switch tube Q1 and second switch Q2 by inductance L, the secondary coil Same Name of Ends is connected on the connecting line of the third switching tube Q3 and the 4th switching tube Q4.
The non-series connection end of the first switch tube Q1 is the anode DC1+ of the first DC side, and the second switch Q2's is non- Series connection end is that the non-series connection end of the negative terminal DC1-, the third switching tube Q3 of the first DC side are the anode DC2 of the second DC side +, the non-series connection end of the 4th switching tube Q4 is the negative terminal DC2- of the second DC side.
Preferably, the first switch tube Q1, second switch Q2, third switching tube Q3 and the 4th switching tube Q4 are IGBT, metal-oxide-semiconductor or BJT pipe it is any.
Preferably, first switch tube Q1 and the driving of second switch Q2 are mutual in every phase-shift soft switch topology unit all the way It mends；Third switching tube Q3 is complementary with the driving of the 4th switching tube Q4；As the advanced third switching tube Q3 of the driving of first switch tube Q1 Driving when, energy from the first DC side controllably convert output to the second DC side, control it by adjusting its leading angle Watt level；When the driving of the driving lag third switching tube Q3 of first switch tube Q1, energy controllably becomes from the second DC side Output is changed to the first DC side, controls its watt level by adjusting its lag angle；By controlling between each switching tube Driving is advanced or lags, and realizes two-way changing.
Preferably, successively misphase angle is the switching tube per opposite position between phase-shift soft switch topology unit all the wayWherein n is the number of phase-shift soft switch topology unit.
The present invention also provides a kind of reversible transducer using above-mentioned phase-shift soft switch topology unit, including the phase shift of the road n are soft The parallel bus capacitor C6 of the parallel bus capacitor C5 and the second DC side of switch topology unit and the first DC side, wherein n For positive integer and n >=2, links together and connect per the anode DC1+ of the first DC side of phase-shift soft switch topology unit all the way To one end of the parallel bus capacitor C5 of the first DC side；Per the negative terminal of the first DC side of phase-shift soft switch topology unit all the way DC1- links together and is connected to the other end of the parallel bus capacitor C5 of the first DC side；
It links together per the anode DC2+ of the second DC side of phase-shift soft switch topology unit all the way and is connected to second One end of the parallel bus capacitor C6 of DC side；Negative terminal DC2- per the second DC side of phase-shift soft switch topology unit all the way connects It is connected together and is connected to the other end of the parallel bus capacitor C6 of the second DC side；
The different name end of the primary coil of the transformer of -1 road phase-shift soft switch topology unit of kth is connected to the phase shift on kth road The Same Name of Ends of the primary coil of the transformer of soft switch topology unit, k are positive integer and 2≤k≤n, -1 road phase-shift soft switch of kth The different name end of the secondary coil of the transformer of topology unit is connected to the pair of the transformer of the phase-shift soft switch topology unit on kth road The Same Name of Ends of sideline circle；The different name end of the primary coil of the transformer of the phase-shift soft switch topology unit on the n-th tunnel is connected to the 1st tunnel Phase-shift soft switch topology unit transformer primary coil Same Name of Ends, the change of the phase-shift soft switch topology unit on the n-th tunnel The different name end of the secondary coil of depressor is connected to the of the same name of the secondary coil of the transformer of the phase-shift soft switch topology unit on the 1st tunnel End.
As the preferred scheme of above-mentioned reversible transducer, n=3, the reversible transducer includes 3 road phase-shift soft switch topologys The parallel bus capacitor C6 of the parallel bus capacitor C5 and the second DC side of unit and the first DC side are opened per phase shift is soft all the way The anode of first DC side of pass topology unit links together and is connected to the one of the parallel bus capacitor C5 of the first DC side End；Negative terminal per the first DC side of phase-shift soft switch topology unit all the way link together and be connected to the first DC side and Join the other end of bus capacitor C5；
It links together per the anode of the second DC side of phase-shift soft switch topology unit all the way and is connected to the second direct current One end of the parallel bus capacitor C6 of side；It links together per the negative terminal of the second DC side of phase-shift soft switch topology unit all the way And it is connected to the other end of the parallel bus capacitor C6 of the second DC side；
1st road phase-shift soft switch topology unit includes transformer T1；2nd road phase-shift soft switch topology unit includes transformer T2；3rd road phase-shift soft switch topology unit includes transformer T3；
The different name end of the primary coil of transformer T1 is connected to the Same Name of Ends of the primary coil of transformer T2, transformer T2's The different name end of primary coil is connected to the Same Name of Ends of the primary coil of transformer T3, and the different name end of the primary coil of transformer T3 connects It is connected to the Same Name of Ends of the primary coil of transformer T1；The different name end of the secondary coil of transformer T1 is connected to the secondary side of transformer T2 The Same Name of Ends of coil；The different name end of the secondary coil of transformer T2 is connected to the Same Name of Ends of the secondary coil of transformer T3, transformation The different name end of the secondary coil of device T3 is connected to the Same Name of Ends of the secondary coil of transformer T1.
1st road phase-shift soft switch topology unit further includes switching tube Q1A, switching tube Q2A, switching tube Q1B and switch Pipe Q2B；2nd road phase-shift soft switch topology unit further includes switching tube Q3A, switching tube Q4A, switching tube Q3B and switching tube Q4B； 3rd road phase-shift soft switch topology unit further includes switching tube Q5A, switching tube Q6A, switching tube Q5B and switching tube Q6B；
The driving of switching tube Q1A is complementary with the driving of switching tube Q2A；The driving of switching tube Q3A and the driving of switching tube Q4A It is complementary；The driving of switching tube Q5A is complementary with the driving of switching tube Q6A；The driving of switching tube Q1B and the driving of switching tube Q2B are mutual It mends；The driving of switching tube Q3B is complementary with the driving of switching tube Q4B；The driving of switching tube Q5B is complementary with the driving of switching tube Q6B； The driving of switching tube Q1A, the driving of switching tube Q3A and the driving of switching tube Q5A successively 120 degree of misphase；When energy is straight from first When stream side is controllably converted into the second DC side, driving difference advanced switching tube Q1B, Q3B, Q5B's of switching tube Q1A, Q3A, Q5A Driving angle is α；When energy is controllably converted into the first DC side from the second DC side, the driving of switching tube Q1A, Q3A, Q5A The driving angle for lagging switching tube Q1B, Q3B, Q5B respectively is β, by adjusting angle [alpha], the size of β come regulation power.
The present invention also provides another reversible transducers using above-mentioned phase-shift soft switch topology unit, including the phase shift of the road n The parallel bus capacitor C6 of the parallel bus capacitor C5 and the second DC side of soft switch topology unit and the first DC side, wherein N >=2 link together per the anode DC1+ of the first DC side of phase-shift soft switch topology unit all the way and are connected to the first direct current One end of the parallel bus capacitor C5 of side；It is connected to per the negative terminal DC1- of the first DC side of phase-shift soft switch topology unit all the way Together and be connected to the first DC side parallel bus capacitor C5 the other end；
It links together per the anode DC2+ of the second DC side of phase-shift soft switch topology unit all the way and is connected to second One end of the parallel bus capacitor C6 of DC side；Negative terminal DC2- per the second DC side of phase-shift soft switch topology unit all the way connects It is connected together and is connected to the other end of the parallel bus capacitor C6 of the second DC side；
The different name end of the primary coil of the transformer of -1 road phase-shift soft switch topology unit of kth is connected to the phase shift on kth road The different name end of the primary coil of the transformer of soft switch topology unit, k are positive integer and 2≤k≤n；The phase-shift soft switch on the n-th tunnel The different name end of the primary coil of the transformer of topology unit is connected to the original of the transformer of the phase-shift soft switch topology unit on the 1st tunnel The different name end of sideline circle；The different name end of the secondary coil of the transformer of -1 road phase-shift soft switch topology unit of kth is connected to kth road Phase-shift soft switch topology unit transformer secondary coil Same Name of Ends；The change of the phase-shift soft switch topology unit on the n-th tunnel The different name end of the secondary coil of depressor is connected to the of the same name of the secondary coil of the transformer of the phase-shift soft switch topology unit on the 1st tunnel End.
As the preferred embodiment of above-mentioned another reversible transducer, n=3, the reversible transducer, which includes that 3 tunnel phase shifts are soft, to be opened The parallel bus capacitor C5 of topology unit and the first DC side and the parallel bus capacitor C6 of the second DC side are closed, it is every to move all the way The anode of first DC side of phase soft switch topology unit links together and is connected to the parallel bus capacitor of the first DC side One end of C5；It links together per the negative terminal of the first DC side of phase-shift soft switch topology unit all the way and is connected to the first direct current The other end of the parallel bus capacitor C5 of side；
It links together per the anode of the second DC side of phase-shift soft switch topology unit all the way and is connected to the second direct current One end of the parallel bus capacitor C6 of side；It links together per the negative terminal of the second DC side of phase-shift soft switch topology unit all the way And it is connected to the other end of the parallel bus capacitor C6 of the second DC side；
1st road phase-shift soft switch topology unit includes transformer T1；2nd road phase-shift soft switch topology unit includes transformer T2；3rd road phase-shift soft switch topology unit includes transformer T3；
The different name end of the primary coil of transformer T1 is connected to the different name end of the primary coil of transformer T2, transformer T2's The different name end of primary coil is connected to the different name end of the primary coil of transformer T3；The different name end of the secondary coil of transformer T1 connects It is connected to the Same Name of Ends of the secondary coil of transformer T2, the different name end of the secondary coil of transformer T2 is connected to the secondary side of transformer T3 The Same Name of Ends of coil；The different name end of the secondary coil of transformer T3 is connected to the Same Name of Ends of the secondary coil of transformer T1.
1st road phase-shift soft switch topology unit further includes switching tube Q1A, switching tube Q2A, switching tube Q1B and switch Pipe Q2B；2nd road phase-shift soft switch topology unit further includes switching tube Q3A, switching tube Q4A, switching tube Q3B and switching tube Q4B； 3rd road phase-shift soft switch topology unit further includes switching tube Q5A, switching tube Q6A, switching tube Q5B and switching tube Q6B；
The driving of switching tube Q1A is complementary with the driving of switching tube Q2A；The driving of switching tube Q3A and the driving of switching tube Q4A It is complementary；The driving of switching tube Q5A is complementary with the driving of switching tube Q6A；The driving of switching tube Q1B and the driving of switching tube Q2B are mutual It mends；The driving of switching tube Q3B is complementary with the driving of switching tube Q4B；The driving of switching tube Q5B is complementary with the driving of switching tube Q6B； The driving of switching tube Q1A, the driving of switching tube Q3A and the driving of switching tube Q5A successively 120 degree of misphase；When energy is straight from first When stream side is controllably converted into the second DC side, driving difference advanced switching tube Q1B, Q3B, Q5B's of switching tube Q1A, Q3A, Q5A Driving angle is α；When energy is controllably converted into the first DC side from the second DC side, the driving of switching tube Q1A, Q3A, Q5A The driving angle for lagging switching tube Q1B, Q3B, Q5B respectively is β, by adjusting angle [alpha], the size of β come regulation power.
The present invention also provides the reversible transducers that another uses above-mentioned phase-shift soft switch topology unit, including the phase shift of the road n The parallel bus capacitor C6 of the parallel bus capacitor C5 and the second DC side of soft switch topology unit and the first DC side, wherein N >=2 link together per the anode DC1+ of the first DC side of phase-shift soft switch topology unit all the way and are connected to the first direct current One end of the parallel bus capacitor C5 of side；It is connected to per the negative terminal DC1- of the first DC side of phase-shift soft switch topology unit all the way Together and be connected to the first DC side parallel bus capacitor C5 the other end；
It links together per the anode DC2+ of the second DC side of phase-shift soft switch topology unit all the way and is connected to second One end of the parallel bus capacitor C6 of DC side；Negative terminal DC2- per the second DC side of phase-shift soft switch topology unit all the way connects It is connected together and is connected to the other end of the parallel bus capacitor C6 of the second DC side；
The different name end of the primary coil of the transformer of -1 road phase-shift soft switch topology unit of kth is connected to the phase shift on kth road The different name end of the primary coil of the transformer of soft switch topology unit, k are positive integer and 2≤k≤n；The phase-shift soft switch on kth road The different name end of the secondary coil of the transformer of topology unit is connected to the pair of the transformer of -1 road phase-shift soft switch topology unit of kth The different name end of sideline circle；The different name end of the primary coil of the transformer of the phase-shift soft switch topology unit on the n-th tunnel is connected to the 1st tunnel Phase-shift soft switch topology unit transformer primary coil different name end, the change of the phase-shift soft switch topology unit on the n-th tunnel The different name end of the secondary coil of depressor is connected to the different name of the secondary coil of the transformer of the phase-shift soft switch topology unit on the 1st tunnel End.
As it is above-mentioned another reversible transducer preferred embodiment, n=3, the reversible transducer include 3 tunnel phase shifts it is soft The parallel bus capacitor C6 of the parallel bus capacitor C5 and the second DC side of switch topology unit and the first DC side, per all the way The anode of first DC side of phase-shift soft switch topology unit links together and is connected to the parallel bus electricity of the first DC side Hold one end of C5；It links together per the negative terminal of the first DC side of phase-shift soft switch topology unit all the way and is connected to first directly Flow the other end of the parallel bus capacitor C5 of side；
It links together per the anode of the second DC side of phase-shift soft switch topology unit all the way and is connected to the second direct current One end of the parallel bus capacitor C6 of side；It links together per the negative terminal of the second DC side of phase-shift soft switch topology unit all the way And it is connected to the other end of the parallel bus capacitor C6 of the second DC side；
1st road phase-shift soft switch topology unit includes transformer T1；2nd road phase-shift soft switch topology unit includes transformer T2；3rd road phase-shift soft switch topology unit includes transformer T3；
The different name end of the primary coil of transformer T1 is connected to the different name end of the primary coil of transformer T2, transformer T2's The different name end of primary coil is connected to the different name end of the primary coil of transformer T3；The different name end of the secondary coil of transformer T1 connects It is connected to the different name end of the secondary coil of transformer T2, the different name end of the secondary coil of transformer T2 is connected to the secondary side of transformer T3 The different name end of coil.
Preferably, the 1st road phase-shift soft switch topology unit further includes switching tube Q1A, switching tube Q2A, switching tube Q1B With switching tube Q2B；2nd road phase-shift soft switch topology unit further includes switching tube Q3A, switching tube Q4A, switching tube Q3B and switch Pipe Q4B；3rd road phase-shift soft switch topology unit further includes switching tube Q5A, switching tube Q6A, switching tube Q5B and switching tube Q6B；
The driving of switching tube Q1A is complementary with the driving of switching tube Q2A；The driving of switching tube Q3A and the driving of switching tube Q4A It is complementary；The driving of switching tube Q5A is complementary with the driving of switching tube Q6A；The driving of switching tube Q1B and the driving of switching tube Q2B are mutual It mends；The driving of switching tube Q3B is complementary with the driving of switching tube Q4B；The driving of switching tube Q5B is complementary with the driving of switching tube Q6B； The driving of switching tube Q1A, the driving of switching tube Q3A and the driving of switching tube Q5A successively 120 degree of misphase；When energy is straight from first When stream side is controllably converted into the second DC side, driving difference advanced switching tube Q1B, Q3B, Q5B's of switching tube Q1A, Q3A, Q5A Driving angle is α；When energy is controllably converted into the first DC side from the second DC side, the driving of switching tube Q1A, Q3A, Q5A The driving angle for lagging switching tube Q1B, Q3B, Q5B respectively is β, by adjusting angle [alpha], the size of β come regulation power.
The present invention has the advantage that compared with prior art
(1) present invention provides a kind of phase-shift soft switch topology list that Sofe Switch is realized different from existing two-way resonance mode Member, the phase-shift soft switch topology unit do not need setting LLC resonant element compared with prior art, component are omitted, avoids The problem of leading to failure rate increase and cost increase because of additional component.
(2) phase-shift soft switch topology unit of the invention is by adjusting the driving phase for corresponding to switching tube, so that correspondence is opened There are phase differences for turn-on and turn-off between the pipe of pass, change the size and Orientation of power flow, institute by adjusting the size of phase difference There is switching tube to can be realized Sofe Switch.And the present invention according to the phase-shift soft switch topology unit design three kinds it is different two-way Converter.
(3) compared with traditional phase-shifted full-bridge converter, the level number of phase shift voltage across the inductor waveform is more, because Smaller phase shift inductance can be selected in this present invention.In addition the electric current approximate sine wave in main loop of power circuit of the invention, EMI characteristic It is well many compared to the trapezoidal wave electric current in the loop of power circuit of traditional phase-shifted full-bridge converter, while sine wave can reduce output The burden of filter circuit, other two power switch tubes of each needs in transformer two sides under equal-wattage grade, compare with it is above-mentioned The transformer two sides of phase-shifted full-bridge converter respectively need four power switch tubes, and less power switch device can be used in the present invention Part.
Detailed description of the invention
Fig. 1 is the circuit diagram of the resonance soft-switching dcdc converter of the prior art；
Fig. 2 is the circuit diagram of the phase shifting full bridge soft switch dcdc converter of the prior art；
Fig. 3 is the main loop of power circuit current waveform figure of phase shifting full bridge soft switch dcdc converter of the prior art；
Fig. 4 is the phase shift voltage across the inductor wave of the main loop of power circuit of phase shifting full bridge soft switch dcdc converter of the prior art Shape；
Fig. 5 is a kind of circuit diagram of phase-shift soft switch topology unit disclosed in the embodiment of the present invention 1；
Fig. 6 is a kind of reversible transducer topological diagram of phase-shift soft switch topology unit disclosed in the embodiment of the present invention 2；
Fig. 7 is that a kind of reversible transducer of phase-shift soft switch topology unit disclosed in the embodiment of the present invention 2 is specific in one Circuit diagram in embodiment；
Fig. 8 is that a kind of reversible transducer of phase-shift soft switch topology unit disclosed in the embodiment of the present invention 2 is specific in one The working waveform figure of each switching tube in embodiment；
Fig. 9 is that a kind of reversible transducer of phase-shift soft switch topology unit disclosed in the embodiment of the present invention 2 is specific in one The current waveform figure of phase shift inductance in embodiment；
Figure 10 is that a kind of reversible transducer of phase-shift soft switch topology unit disclosed in the embodiment of the present invention 2 is specific in one Phase shift voltage across the inductor waveform in embodiment；
Figure 11 is that a kind of reversible transducer of phase-shift soft switch topology unit disclosed in the embodiment of the present invention 2 is specific in one The drive waveforms of switching tube and its drain electrode are to the voltage-contrast figure between source electrode in embodiment；
Figure 12 is a kind of reversible transducer topology of phase-shift soft switch topology unit disclosed in the embodiment of the present invention 3 Figure；
Figure 13 is a kind of reversible transducer topology of phase-shift soft switch topology unit disclosed in the embodiment of the present invention 4 Figure.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation Example.
Embodiment 1
As shown in figure 5, a kind of phase-shift soft switch topology unit, including first switch tube Q1 and its anti-paralleled diode D1 and Its junction capacity C1, second switch Q2 and its anti-paralleled diode D2 and its junction capacity C2, third switching tube Q3 and its inverse parallel Diode D3 and its junction capacity C3, first switch tube Q4 and its anti-paralleled diode D4 and its junction capacity C4 and transformer T, institute It states first switch tube Q1 and second switch Q2 to be connected in series, third switching tube Q3 and the 4th switching tube Q4 are connected in series, described Transformer T includes primary coil (figure is not marked) and secondary coil (figure is not marked), and diagram left side is primary coil, and right side is secondary sideline Circle.The Same Name of Ends of the primary coil is connected to the connecting line of the first switch tube Q1 and second switch Q2 by inductance L On, the Same Name of Ends of the secondary coil is connected on the connecting line of the third switching tube Q3 and the 4th switching tube Q4.
The non-series connection end of the first switch tube Q1 is the anode DC1+ of the first DC side, and the second switch Q2's is non- Series connection end is that the non-series connection end of the negative terminal DC1-, the third switching tube Q3 of the first DC side are the anode DC2 of the second DC side +, the non-series connection end of the 4th switching tube Q4 is the negative terminal DC2- of the second DC side.
It will be appreciated by persons skilled in the art that the switching tube can be IGBT pipe, metal-oxide-semiconductor, MOSFET pipe, BJT Pipe or other controllable half controllable switch devices.
The working principle of the embodiment of the present invention 1 are as follows: first switch tube Q1 and second in every road phase-shift soft switch topology unit The driving of switching tube Q2 is complementary；Third switching tube Q3 is complementary with the driving of the 4th switching tube Q4；When the driving of first switch tube Q1 When the driving of advanced third switching tube Q3, energy controllably converts output from the first DC side to the second DC side, by adjusting it Leading angle controls its watt level；When first switch tube Q1 driving lag third switching tube Q3 driving when, energy from Second DC side controllably converts output to the first DC side, controls its watt level by adjusting its lag angle；Pass through control It makes the driving between each switching tube in advance or lags, realize two-way changing；In order to realize lower input and output side bus line Wave, successively misphase angle is the switching tube per opposite position between phase-shift soft switch topology unit all the wayCertainly successively wrong Mutually other special angles are also able to satisfy application demand, it should be noted that opposite position is referred to per phase-shift soft switch all the way Co-located switching tube in topology unit；Wherein for the adjusting of switching tube phase, mainly pass through controller and drive The driving stage of dynamic circuit connection, driving circuit and switching tube connects, and controller is carried out by the driving phase of software switch tube Adjustment, these belong to the prior art.By controlling the driving between each switching tube in advance or lagging, realization two-way changing, It realizes the function of Sofe Switch, while controlling its watt level by adjusting its lag angle or leading angle.
Embodiment 2
As shown in fig. 6, the present invention provides a kind of two-way change using phase-shift soft switch topology unit disclosed in embodiment 1 Parallel operation, parallel bus capacitor C5 and the second DC side including the road n phase-shift soft switch topology unit and the first DC side and Join bus capacitor C6, wherein n >=2, in order to make it easy to understand, framed with wire in Fig. 6 per phase-shift soft switch topology unit all the way, The wire is not belonging to circuit structure, is not involved in electric connection.The first DC side per phase-shift soft switch topology unit all the way is just End DC1+ links together and is connected to one end of the parallel bus capacitor C5 of the first DC side；Per the topology of phase-shift soft switch all the way The negative terminal DC1- of first DC side of unit links together and is connected to the another of the parallel bus capacitor C5 of the first DC side End；
It links together per the anode DC2+ of the second DC side of phase-shift soft switch topology unit all the way and is connected to second One end of the parallel bus capacitor C6 of DC side；Negative terminal DC2- per the second DC side of phase-shift soft switch topology unit all the way connects It is connected together and is connected to the other end of the parallel bus capacitor C6 of the second DC side；
The different name end of the primary coil of the transformer of -1 road phase-shift soft switch topology unit of kth is connected to the phase shift on kth road The Same Name of Ends of the primary coil of the transformer of soft switch topology unit, k are positive integer and 2≤k≤n, the phase-shift soft switch on the n-th tunnel The different name end of the primary coil of the transformer of topology unit is connected to the original of the transformer of the phase-shift soft switch topology unit on the 1st tunnel The Same Name of Ends of sideline circle；The different name end of the secondary coil of the transformer of -1 road phase-shift soft switch topology unit of kth is connected to kth road Phase-shift soft switch topology unit transformer secondary coil Same Name of Ends；The change of the phase-shift soft switch topology unit on the n-th tunnel The different name end of the primary coil of depressor is connected to the of the same name of the primary coil of the transformer of the phase-shift soft switch topology unit on the 1st tunnel End；The different name end of the secondary coil of the transformer of the phase-shift soft switch topology unit on the n-th tunnel is connected to the phase-shift soft switch on the 1st tunnel The Same Name of Ends of the secondary coil of the transformer of topology unit.
In order to make it easy to understand, as shown in fig. 7, the present embodiment by taking n=3 as an example, to reversible transducer provided in this embodiment It is introduced, the reversible transducer includes the parallel bus capacitor of 3 road phase-shift soft switch topology units and the first DC side The parallel bus capacitor C6 of C5 and the second DC side, the anode connection per the first DC side of phase-shift soft switch topology unit all the way Together and be connected to the first DC side parallel bus capacitor C5 one end；Per the first of phase-shift soft switch topology unit all the way The negative terminal of DC side links together and is connected to the other end of the parallel bus capacitor C5 of the first DC side；
It links together per the anode of the second DC side of phase-shift soft switch topology unit all the way and is connected to the second direct current One end of the parallel bus capacitor C6 of side；It links together per the negative terminal of the second DC side of phase-shift soft switch topology unit all the way And it is connected to the other end of the parallel bus capacitor C6 of the second DC side；
1st road phase-shift soft switch topology unit includes transformer T1；2nd road phase-shift soft switch topology unit includes transformer T2；3rd road phase-shift soft switch topology unit includes transformer T3；
The different name end of the primary coil of transformer T1 is connected to the Same Name of Ends of the primary coil of transformer T2, transformer T2's The different name end of primary coil is connected to the Same Name of Ends of the primary coil of transformer T3, and the different name end of the primary coil of transformer T3 connects It is connected to the Same Name of Ends of the primary coil of transformer T1；The different name end of the secondary coil of transformer T1 is connected to the secondary side of transformer T2 The Same Name of Ends of coil；The different name end of the secondary coil of transformer T2 is connected to the Same Name of Ends of the secondary coil of transformer T3, transformation The different name end of the secondary coil of device T3 is connected to the Same Name of Ends of the secondary coil of transformer T1.
1st road phase-shift soft switch topology unit further includes switching tube Q1A, switching tube Q2A, switching tube Q1B and switch Pipe Q2B；2nd road phase-shift soft switch topology unit further includes switching tube Q3A, switching tube Q4A, switching tube Q3B and switching tube Q4B； 3rd road phase-shift soft switch topology unit further includes switching tube Q5A, switching tube Q6A, switching tube Q5B and switching tube Q6B；Wherein open The driving for closing pipe Q1A is complementary with the driving of switching tube Q2A；The driving of switching tube Q3A is complementary with the driving of switching tube Q4A；Switch The driving of pipe Q5A is complementary with the driving of switching tube Q6A；The driving of switching tube Q1B is complementary with the driving of switching tube Q2B；Switching tube The driving of Q3B is complementary with the driving of switching tube Q4B；The driving of switching tube Q5B is complementary with the driving of switching tube Q6B；Switching tube Q1A Driving, the driving of switching tube Q3A and driving successively 120 degree of misphase of switching tube Q5A；When energy controllably becomes from the first DC side When shifting to the second DC side, the driving angle for driving advanced switching tube Q1B, Q3B, Q5B respectively of switching tube Q1A, Q3A, Q5A are α；When energy is controllably converted into the first DC side from the second DC side, the driving of switching tube Q1A, Q3A, Q5A lag open respectively The driving angle for closing pipe Q1B, Q3B, Q5B is β；By adjusting angle [alpha], the size of β come regulation power.
Since the analysis of the forward and reverse flowing of energy is consistent, only analysis is controllably converted into the from the first DC side when energy here The operating condition of two DC sides, work wave such as Fig. 8, wherein DR_Q1A, DR_Q2A, DR_Q3A, DR_Q4A, DR_Q5A, DR_Q6A, DR_Q1B, DR_Q2B, DR_Q3B, DR_Q4B, DR_Q5B, DR_Q6B be respectively switching tube Q1A, switching tube Q2A, switching tube Q3A, Switching tube Q4A, switching tube Q5A, switching tube Q6A, switching tube Q1B, switching tube Q2B, switching tube Q3B, switching tube Q4B, switching tube The driving of Q5B and switching tube Q6B, by taking switching tube Q1A, switching tube Q2A as an example, the driving of its switching tube Q1A in a cycle The wave crest of DR_Q1A waveform at the trough of the driving DR_Q2A waveform of switching tube Q2A, illustrates switching tube Q1A and switching tube just The driving of Q2A is complementary.
Since the misphase between three road phase-shift soft switch topology units works so that the electric current for flowing through each road phase shift inductance is close Like sine wave, and voltage with multiple levels is presented in the voltage at each road phase shift inductance both ends, as shown in figure 9, I_L1, I_L2, I_L3 distinguish For the electric current for flowing through corresponding phase shift inductance, as shown in Figure 10, V_L1, V_L2, V_L3 are respectively corresponding phase shift voltage across the inductor, Its both end voltage is more level.It is more preferable that power current approximate sine wave makes the present invention possess relatively traditional two class soft switch topologies EMI characteristic, while this can also reduce the ripple current of input and output side filter circuit, additionally, due to phase shift voltage across the inductor It is more level, opposite tradition phase-shifting full-bridge topology, the voltage at phase shift inductance both ends is smaller, therefore compares that tradition phase-shifting formula is soft to be opened Closing dcdc converter may be selected smaller phase shift inductance.
Analyze the Sofe Switch state of each switching tube, transformer two sides switching tube Q1A, Q2A and Q3B, Q4B work wave and Its drain electrode is as shown in figure 11 to the voltage-contrast figure between source electrode, and wherein V_Q1A, V_Q2A, V_Q3B, V_Q4B are respectively to switch To the voltage between source electrode, drain potential is greater than its voltage of source potential and is positive for the drain electrode of pipe Q1A, Q2A and Q3B, Q4B.Due to Phase shift inductance and transformer primary secondary power switch pipe be advanced or hysteresis motion, so that the electric current in loop of power circuit generates lag effect It answers, (driving effectively refers in its work wave that operating point is at wave crest) the power electricity before the driving effectively of each switching tube Stream flows through the anti-paralleled diode of corresponding switching tube, so that it is that no-voltage is led that corresponding switching tube both end voltage, which is 0V i.e. switching tube, It is logical.(driving effectively refers in its work wave that operating point is in wave before each switching tube driving effectively as can be seen from Figure 11 At peak) corresponding switching tube both end voltage be 0V i.e. switching tube is no-voltage conducting, which can be achieved Sofe Switch, other are opened Pass plumber's condition is the same, and which is not described herein again.
Embodiment 3
The embodiment of the present invention 3 the difference from example 2 is that in each phase-shift soft switch topology unit transformer wiring side Formula is different, as shown in figure 12, in order to make it easy to understand, framed with wire in Figure 12 per phase-shift soft switch topology unit all the way, it should Wire is not belonging to circuit structure, is not involved in electric connection.The present invention provides another kind and uses above-mentioned phase-shift soft switch topology unit Reversible transducer, the different name end of the primary coil of the transformer of -1 road phase-shift soft switch topology unit of kth is connected to kth road The different name end of the primary coil of the transformer of phase-shift soft switch topology unit, k are positive integer and 2≤k≤n；- 1 tunnel phase shift of kth is soft The different name end of the secondary coil of the transformer of switch topology unit is connected to the transformer of the phase-shift soft switch topology unit on kth road Secondary coil Same Name of Ends；The different name end of the primary coil of the transformer of the phase-shift soft switch topology unit on the n-th tunnel is connected to The different name end of the primary coil of the transformer of the phase-shift soft switch topology unit on the 1st tunnel；The phase-shift soft switch topology unit on the n-th tunnel Transformer secondary coil different name end be connected to the 1st tunnel phase-shift soft switch topology unit transformer secondary coil Same Name of Ends.
In order to make it easy to understand, the present embodiment by taking n=3 as an example, is introduced reversible transducer provided in this embodiment, institute State the parallel bus capacitor C5 and the second direct current that reversible transducer includes 3 road phase-shift soft switch topology units and the first DC side The parallel bus capacitor C6 of side links together and connects per the anode of the first DC side of phase-shift soft switch topology unit all the way To one end of the parallel bus capacitor C5 of the first DC side；Per the negative terminal of the first DC side of phase-shift soft switch topology unit all the way Link together and be connected to the other end of the parallel bus capacitor C5 of the first DC side；
It links together per the anode of the second DC side of phase-shift soft switch topology unit all the way and is connected to the second direct current One end of the parallel bus capacitor C6 of side；It links together per the negative terminal of the second DC side of phase-shift soft switch topology unit all the way And it is connected to the other end of the parallel bus capacitor C6 of the second DC side；
1st road phase-shift soft switch topology unit includes transformer T1；2nd road phase-shift soft switch topology unit includes transformer T2；3rd road phase-shift soft switch topology unit includes transformer T3；
The different name end of the primary coil of transformer T1 is connected to the different name end of the primary coil of transformer T2, transformer T2's The different name end of primary coil is connected to the different name end of the primary coil of transformer T3；The different name end of the secondary coil of transformer T1 connects It is connected to the Same Name of Ends of the secondary coil of transformer T2, the different name end of the secondary coil of transformer T2 is connected to the secondary side of transformer T3 The Same Name of Ends of coil；The different name end of the secondary coil of transformer T3 is connected to the Same Name of Ends of the secondary coil of transformer T1.
1st road phase-shift soft switch topology unit further includes switching tube Q1A, switching tube Q2A, switching tube Q1B and switch Pipe Q2B；2nd road phase-shift soft switch topology unit further includes switching tube Q3A, switching tube Q4A, switching tube Q3B and switching tube Q4B； 3rd road phase-shift soft switch topology unit further includes switching tube Q5A, switching tube Q6A, switching tube Q5B and switching tube Q6B；
The driving of switching tube Q1A is complementary with the driving of switching tube Q2A；The driving of switching tube Q3A and the driving of switching tube Q4A It is complementary；The driving of switching tube Q5A is complementary with the driving of switching tube Q6A；The driving of switching tube Q1B and the driving of switching tube Q2B are mutual It mends；The driving of switching tube Q3B is complementary with the driving of switching tube Q4B；The driving of switching tube Q5B is complementary with the driving of switching tube Q6B； The driving of switching tube Q1A, the driving of switching tube Q3A and the driving of switching tube Q5A successively 120 degree of misphase；When energy is straight from first When stream side is controllably converted into the second DC side, driving difference advanced switching tube Q1B, Q3B, Q5B's of switching tube Q1A, Q3A, Q5A Driving angle is α；When energy is controllably converted into the first DC side from the second DC side, the driving of switching tube Q1A, Q3A, Q5A The driving angle for lagging switching tube Q1B, Q3B, Q5B respectively is β, by adjusting angle [alpha], the size of β come regulation power.
The transformer connection mode of the embodiment of the present invention 3 is different from embodiment 2, causes primary and secondary side turn ratio different, Former secondary voltage is than different, but the working principle and course of work phase of the working principle of the embodiment of the present invention 3 and embodiment 2 Together.
Embodiment 4
The embodiment of the present invention 4 the difference from example 2 is that in each phase-shift soft switch topology unit transformer wiring side Formula is different, as shown in figure 13, in order to make it easy to understand, framed with wire in Figure 12 per phase-shift soft switch topology unit all the way, it should Wire is not belonging to circuit structure, is not involved in electric connection.The present invention provides another and uses above-mentioned phase-shift soft switch topology unit Reversible transducer, the different name end of the primary coil of the transformer of -1 road phase-shift soft switch topology unit of kth is connected to kth road The different name end of the primary coil of the transformer of phase-shift soft switch topology unit, k are positive integer and 2≤k≤n；The phase shift on kth road is soft The different name end of the secondary coil of the transformer of switch topology unit is connected to the transformer of -1 road phase-shift soft switch topology unit of kth Secondary coil different name end；The different name end of the primary coil of the transformer of the phase-shift soft switch topology unit on the n-th tunnel is connected to The different name end of the primary coil of the transformer of the phase-shift soft switch topology unit on the 1st tunnel；The phase-shift soft switch topology unit on the n-th tunnel Transformer secondary coil different name end be connected to the 1st tunnel phase-shift soft switch topology unit transformer secondary coil Different name end.
In order to make it easy to understand, the present embodiment by taking n=3 as an example, is introduced reversible transducer provided in this embodiment, institute State the parallel bus capacitor C5 and the second direct current that reversible transducer includes 3 road phase-shift soft switch topology units and the first DC side The parallel bus capacitor C6 of side links together and connects per the anode of the first DC side of phase-shift soft switch topology unit all the way To one end of the parallel bus capacitor C5 of the first DC side；Per the negative terminal of the first DC side of phase-shift soft switch topology unit all the way Link together and be connected to the other end of the parallel bus capacitor C5 of the first DC side；
It links together per the anode of the second DC side of phase-shift soft switch topology unit all the way and is connected to the second direct current One end of the parallel bus capacitor C6 of side；It links together per the negative terminal of the second DC side of phase-shift soft switch topology unit all the way And it is connected to the other end of the parallel bus capacitor C6 of the second DC side；
1st road phase-shift soft switch topology unit includes transformer T1；2nd road phase-shift soft switch topology unit includes transformer T2；3rd road phase-shift soft switch topology unit includes transformer T3；
The different name end of the primary coil of transformer T1 is connected to the different name end of the primary coil of transformer T2, transformer T2's The different name end of primary coil is connected to the different name end of the primary coil of transformer T3；The different name end of the secondary coil of transformer T1 connects It is connected to the different name end of the secondary coil of transformer T2, the different name end of the secondary coil of transformer T2 is connected to the secondary side of transformer T3 The different name end of coil.
1st road phase-shift soft switch topology unit further includes switching tube Q1A, switching tube Q2A, switching tube Q1B and switch Pipe Q2B；2nd road phase-shift soft switch topology unit further includes switching tube Q3A, switching tube Q4A, switching tube Q3B and switching tube Q4B； 3rd road phase-shift soft switch topology unit further includes switching tube Q5A, switching tube Q6A, switching tube Q5B and switching tube Q6B；
The driving of switching tube Q1A is complementary with the driving of switching tube Q2A；The driving of switching tube Q3A and the driving of switching tube Q4A It is complementary；The driving of switching tube Q5A is complementary with the driving of switching tube Q6A；The driving of switching tube Q1B and the driving of switching tube Q2B are mutual It mends；The driving of switching tube Q3B is complementary with the driving of switching tube Q4B；The driving of switching tube Q5B is complementary with the driving of switching tube Q6B； The driving of switching tube Q1A, the driving of switching tube Q3A and the driving of switching tube Q5A successively 120 degree of misphase；When energy is straight from first When stream side is controllably converted into the second DC side, driving difference advanced switching tube Q1B, Q3B, Q5B's of switching tube Q1A, Q3A, Q5A Driving angle is α；When energy is controllably converted into the first DC side from the second DC side, the driving of switching tube Q1A, Q3A, Q5A The driving angle for lagging switching tube Q1B, Q3B, Q5B respectively is β, by adjusting angle [alpha], the size of β come regulation power.
The transformer connection mode of the embodiment of the present invention 4 is different from embodiment 2, causes primary and secondary side turn ratio different, Former secondary voltage is than different, but the working principle and course of work phase of the working principle of the embodiment of the present invention 4 and embodiment 2 Together.
By above technical scheme, a kind of phase-shift soft switch topology unit provided by the present invention and its reversible transducer, Compared with traditional resonance soft-switching dcdc converter, has structure simple, do not need to introduce additional capacitor-inductor To achieve the purpose that Sofe Switch, device is relatively fewer, at low cost, and failure rate is low.
A kind of phase-shift soft switch topology unit provided by the invention and its reversible transducer, are opened with traditional phase shifting full bridge soft It closes dcdc converter to compare, it is converted with less device for power switching to meet soft switch DC/AC under equal transport power Demand can reduce cost, reduce the failure rate of equipment and improve service life.In addition more above-mentioned phase shifting full bridge soft switch is compared Current waveform approximate sine wave in its main loop of power circuit of dcdc converter has preferable EMI characteristic, compares and resonant mode is soft opens The trapezoidal power current waveform of the irregular class sinusoidal power current waveform and phase-shifting full-bridge that close, sinewave power current waveform Idle ingredient is less, and the reactive current for flowing through input and output side filter is smaller, therefore it can reduce input and output side filter Ripple current, simultaneously because multichannel topology unit crisscross parallel, power current correspond to crisscross parallel, cancel out each other it is idle at Point, the ripple of input and output side bus capacitor can be further decreased, to reduce input and output side filter size.
Phase shift inductance in the inventive solutions can be replaced with the leakage inductance of corresponding transformer, can also be split into Multiple separate inductors are placed on transformer side or two sides；Change in the parallel connection converter of the road n in the inventive solutions The magnetic core of depressor can integrate can also respectively use separate cores together；In addition transformer in order to prevent in some applications Magnetic saturation can seal in capacitor in loop of power circuit to realize that blocking prevents the magnetically saturated effect of transformer.The foregoing is merely this The preferred embodiment of invention, is not intended to limit the invention, done within the spirit and principles of the present invention any Modifications, equivalent substitutions and improvements etc., should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of phase-shift soft switch topology unit, which is characterized in that including first switch tube Q1 and its anti-paralleled diode D1 and Its junction capacity C1, second switch Q2 and its anti-paralleled diode D2 and its junction capacity C2, third switching tube Q3 and its inverse parallel Diode D3 and its junction capacity C3, first switch tube Q4 and its anti-paralleled diode D4 and its junction capacity C4 and transformer T, institute It states first switch tube Q1 and second switch Q2 to be connected in series, third switching tube Q3 and the 4th switching tube Q4 are connected in series, described Transformer T includes primary coil and secondary coil, and the Same Name of Ends of the primary coil is connected to the first switch by inductance L On the connecting line of pipe Q1 and second switch Q2, the Same Name of Ends of the secondary coil is connected to the third switching tube Q3 and the 4th On the connecting line of switching tube Q4；
The non-series connection end of the first switch tube Q1 is the anode DC1+ of the first DC side, the non-series connection of the second switch Q2 End is that the non-series connection end of the negative terminal DC1-, the third switching tube Q3 of the first DC side are the anode DC2+ of the second DC side, institute The non-series connection end for stating the 4th switching tube Q4 is the negative terminal DC2- of the second DC side.
2. a kind of phase-shift soft switch topology unit according to claim 1, which is characterized in that the first switch tube Q1, Second switch Q2, third switching tube Q3 and the 4th switching tube Q4 are any one of IGBT, metal-oxide-semiconductor or BJT pipe.
3. a kind of phase-shift soft switch topology unit according to claim 1, which is characterized in that opened up per phase-shift soft switch all the way It is complementary with the driving of second switch Q2 to flutter first switch tube Q1 in unit；The driving of third switching tube Q3 and the 4th switching tube Q4 It is complementary；When the driving of the advanced third switching tube Q3 of driving of first switch tube Q1, energy controllably converts defeated from the first DC side Out to the second DC side, its watt level is controlled by adjusting its leading angle；When the driving lag the of first switch tube Q1 When the driving of three switching tube Q3, energy controllably converts output from the second DC side to the first DC side, by adjusting its angle of lag Degree is to control its watt level；By controlling the driving between each switching tube in advance or lagging, two-way changing is realized；
Successively misphase angle is switching tube per opposite position between phase-shift soft switch topology unit all the wayWherein n is to move The number of phase soft switch topology unit.
4. it is a kind of using a kind of described in any item reversible transducers of phase-shift soft switch topology unit of claim 1-3, it is special Sign is, parallel bus capacitor C5's and the second DC side including the road n phase-shift soft switch topology unit and the first DC side Parallel bus capacitor C6, wherein n is positive integer and n >=2, per the anode of the first DC side of phase-shift soft switch topology unit all the way DC1+ links together and is connected to one end of the parallel bus capacitor C5 of the first DC side；It is single per the topology of phase-shift soft switch all the way The negative terminal DC1- of first DC side of member links together and is connected to the other end of the parallel bus capacitor C5 of the first DC side；
It links together per the anode DC2+ of the second DC side of phase-shift soft switch topology unit all the way and is connected to the second direct current One end of the parallel bus capacitor C6 of side；It is connected to per the negative terminal DC2- of the second DC side of phase-shift soft switch topology unit all the way Together and be connected to the second DC side parallel bus capacitor C6 the other end；
The phase shift that the different name end of the primary coil of the transformer of -1 road phase-shift soft switch topology unit of kth is connected to kth road soft is opened The Same Name of Ends of the primary coil of the transformer of topology unit is closed, k is positive integer and 2≤k≤n；- 1 road phase-shift soft switch topology of kth The different name end of the secondary coil of the transformer of unit is connected to the secondary sideline of the transformer of the phase-shift soft switch topology unit on kth road The Same Name of Ends of circle；The different name end of the primary coil of the transformer of the phase-shift soft switch topology unit on the n-th tunnel is connected to the shifting on the 1st tunnel The Same Name of Ends of the primary coil of the transformer of phase soft switch topology unit, the transformer of the phase-shift soft switch topology unit on the n-th tunnel Secondary coil different name end be connected to the 1st tunnel phase-shift soft switch topology unit transformer secondary coil Same Name of Ends.
5. a kind of reversible transducer of phase-shift soft switch topology unit according to claim 4, which is characterized in that n=3, The reversible transducer includes the parallel bus capacitor C5 and second of 3 road phase-shift soft switch topology units and the first DC side straight The parallel bus capacitor C6 for flowing side links together and connects per the anode of the first DC side of phase-shift soft switch topology unit all the way It is connected to one end of the parallel bus capacitor C5 of the first DC side；Per the negative of the first DC side of phase-shift soft switch topology unit all the way End links together and is connected to the other end of the parallel bus capacitor C5 of the first DC side；
It links together per the anode of the second DC side of phase-shift soft switch topology unit all the way and is connected to the second DC side One end of parallel bus capacitor C6；It links together and connects per the negative terminal of the second DC side of phase-shift soft switch topology unit all the way It is connected to the other end of the parallel bus capacitor C6 of the second DC side；
1st road phase-shift soft switch topology unit includes transformer T1；2nd road phase-shift soft switch topology unit includes transformer T2； 3rd road phase-shift soft switch topology unit includes transformer T3；
The different name end of the primary coil of transformer T1 is connected to the Same Name of Ends of the primary coil of transformer T2, the primary side of transformer T2 The different name end of coil is connected to the Same Name of Ends of the primary coil of transformer T3, and the different name end of the primary coil of transformer T3 is connected to The Same Name of Ends of the primary coil of transformer T1；The different name end of the secondary coil of transformer T1 is connected to the secondary coil of transformer T2 Same Name of Ends；The different name end of the secondary coil of transformer T2 is connected to the Same Name of Ends of the secondary coil of transformer T3, transformer T3 Secondary coil different name end be connected to transformer T1 secondary coil Same Name of Ends.
6. a kind of reversible transducer of phase-shift soft switch topology unit according to claim 5, which is characterized in that described 1 road phase-shift soft switch topology unit further includes switching tube Q1A, switching tube Q2A, switching tube Q1B and switching tube Q2B；2nd tunnel phase shift Soft switch topology unit further includes switching tube Q3A, switching tube Q4A, switching tube Q3B and switching tube Q4B；3rd road phase-shift soft switch Topology unit further includes switching tube Q5A, switching tube Q6A, switching tube Q5B and switching tube Q6B；
The driving of switching tube Q1A is complementary with the driving of switching tube Q2A；The driving of switching tube Q3A and the driving of switching tube Q4A are mutual It mends；The driving of switching tube Q5A is complementary with the driving of switching tube Q6A；The driving of switching tube Q1B is complementary with the driving of switching tube Q2B； The driving of switching tube Q3B is complementary with the driving of switching tube Q4B；The driving of switching tube Q5B is complementary with the driving of switching tube Q6B；It opens Close the driving of pipe Q1A, the driving of switching tube Q3A and the driving of switching tube Q5A successively 120 degree of misphase；When energy is from the first direct current When side is controllably converted into the second DC side, the drive of driving difference advanced switching tube Q1B, Q3B, Q5B of switching tube Q1A, Q3A, Q5A Dynamic angle is α；When energy is controllably converted into the first DC side from the second DC side, the driving point of switching tube Q1A, Q3A, Q5A Not Zhi Hou the driving angle of switching tube Q1B, Q3B, Q5B be β, by adjusting, angle [alpha], the size of β is come regulation power.
7. it is a kind of using a kind of described in any item reversible transducers of phase-shift soft switch topology unit of claim 1-3, it is special Sign is, parallel bus capacitor C5's and the second DC side including the road n phase-shift soft switch topology unit and the first DC side Parallel bus capacitor C6, wherein n >=2, are connected to per the anode DC1+ of the first DC side of phase-shift soft switch topology unit all the way Together and be connected to the first DC side parallel bus capacitor C5 one end；First per phase-shift soft switch topology unit all the way is straight The negative terminal DC1- of stream side links together and is connected to the other end of the parallel bus capacitor C5 of the first DC side；
It links together per the anode DC2+ of the second DC side of phase-shift soft switch topology unit all the way and is connected to the second direct current One end of the parallel bus capacitor C6 of side；It is connected to per the negative terminal DC2- of the second DC side of phase-shift soft switch topology unit all the way Together and be connected to the second DC side parallel bus capacitor C6 the other end；
The phase shift that the different name end of the primary coil of the transformer of -1 road phase-shift soft switch topology unit of kth is connected to kth road soft is opened The different name end of the primary coil of the transformer of topology unit is closed, k is positive integer and 2≤k≤n；- 1 road phase-shift soft switch topology of kth The different name end of the secondary coil of the transformer of unit is connected to the secondary sideline of the transformer of the phase-shift soft switch topology unit on kth road The Same Name of Ends of circle；The different name end of the primary coil of the transformer of the phase-shift soft switch topology unit on the n-th tunnel is connected to the shifting on the 1st tunnel The different name end of the primary coil of the transformer of phase soft switch topology unit；The transformer of the phase-shift soft switch topology unit on the n-th tunnel Secondary coil different name end be connected to the 1st tunnel phase-shift soft switch topology unit transformer secondary coil Same Name of Ends.
8. a kind of reversible transducer of phase-shift soft switch topology unit according to claim 7, which is characterized in that n=3, The reversible transducer includes the parallel bus capacitor C5 and second of 3 road phase-shift soft switch topology units and the first DC side straight The parallel bus capacitor C6 for flowing side links together and connects per the anode of the first DC side of phase-shift soft switch topology unit all the way It is connected to one end of the parallel bus capacitor C5 of the first DC side；Per the negative of the first DC side of phase-shift soft switch topology unit all the way End links together and is connected to the other end of the parallel bus capacitor C5 of the first DC side；
It links together per the anode of the second DC side of phase-shift soft switch topology unit all the way and is connected to the second DC side One end of parallel bus capacitor C6；It links together and connects per the negative terminal of the second DC side of phase-shift soft switch topology unit all the way It is connected to the other end of the parallel bus capacitor C6 of the second DC side；
1st road phase-shift soft switch topology unit includes transformer T1；2nd road phase-shift soft switch topology unit includes transformer T2； 3rd road phase-shift soft switch topology unit includes transformer T3；
The different name end of the primary coil of transformer T1 is connected to the different name end of the primary coil of transformer T2, the primary side of transformer T2 The different name end of coil is connected to the different name end of the primary coil of transformer T3；The different name end of the secondary coil of transformer T1 is connected to The Same Name of Ends of the secondary coil of transformer T2, the different name end of the secondary coil of transformer T2 are connected to the secondary coil of transformer T3 Same Name of Ends；The different name end of the secondary coil of transformer T3 is connected to the Same Name of Ends of the secondary coil of transformer T1；
1st road phase-shift soft switch topology unit further includes switching tube Q1A, switching tube Q2A, switching tube Q1B and switching tube Q2B；2nd road phase-shift soft switch topology unit further includes switching tube Q3A, switching tube Q4A, switching tube Q3B and switching tube Q4B；3rd Road phase-shift soft switch topology unit further includes switching tube Q5A, switching tube Q6A, switching tube Q5B and switching tube Q6B；
The driving of switching tube Q1A is complementary with the driving of switching tube Q2A；The driving of switching tube Q3A and the driving of switching tube Q4A are mutual It mends；The driving of switching tube Q5A is complementary with the driving of switching tube Q6A；The driving of switching tube Q1B is complementary with the driving of switching tube Q2B； The driving of switching tube Q3B is complementary with the driving of switching tube Q4B；The driving of switching tube Q5B is complementary with the driving of switching tube Q6B；It opens Close the driving of pipe Q1A, the driving of switching tube Q3A and the driving of switching tube Q5A successively 120 degree of misphase；When energy is from the first direct current When side is controllably converted into the second DC side, the drive of driving difference advanced switching tube Q1B, Q3B, Q5B of switching tube Q1A, Q3A, Q5A Dynamic angle is α；When energy is controllably converted into the first DC side from the second DC side, the driving point of switching tube Q1A, Q3A, Q5A Not Zhi Hou the driving angle of switching tube Q1B, Q3B, Q5B be β, by adjusting, angle [alpha], the size of β is come regulation power.
9. it is a kind of using a kind of described in any item reversible transducers of phase-shift soft switch topology unit of claim 1-3, it is special Sign is, parallel bus capacitor C5's and the second DC side including the road n phase-shift soft switch topology unit and the first DC side Parallel bus capacitor C6, wherein n >=2, are connected to per the anode DC1+ of the first DC side of phase-shift soft switch topology unit all the way Together and be connected to the first DC side parallel bus capacitor C5 one end；First per phase-shift soft switch topology unit all the way is straight The negative terminal DC1- of stream side links together and is connected to the other end of the parallel bus capacitor C5 of the first DC side；
It links together per the anode DC2+ of the second DC side of phase-shift soft switch topology unit all the way and is connected to the second direct current One end of the parallel bus capacitor C6 of side；It is connected to per the negative terminal DC2- of the second DC side of phase-shift soft switch topology unit all the way Together and be connected to the second DC side parallel bus capacitor C6 the other end；
The phase shift that the different name end of the primary coil of the transformer of -1 road phase-shift soft switch topology unit of kth is connected to kth road soft is opened The different name end of the primary coil of the transformer of topology unit is closed, k is positive integer and 2≤k≤n；The phase-shift soft switch topology on kth road The different name end of the secondary coil of the transformer of unit is connected to the secondary sideline of the transformer of -1 road phase-shift soft switch topology unit of kth The different name end of circle；The different name end of the primary coil of the transformer of the phase-shift soft switch topology unit on the n-th tunnel is connected to the shifting on the 1st tunnel The different name end of the primary coil of the transformer of phase soft switch topology unit, the transformer of the phase-shift soft switch topology unit on the n-th tunnel Secondary coil different name end be connected to the 1st tunnel phase-shift soft switch topology unit transformer secondary coil different name end.
10. a kind of reversible transducer of phase-shift soft switch topology unit according to claim 9, which is characterized in that n=3, The reversible transducer includes the parallel bus capacitor C5 and second of 3 road phase-shift soft switch topology units and the first DC side straight The parallel bus capacitor C6 for flowing side links together and connects per the anode of the first DC side of phase-shift soft switch topology unit all the way It is connected to one end of the parallel bus capacitor C5 of the first DC side；Per the negative of the first DC side of phase-shift soft switch topology unit all the way End links together and is connected to the other end of the parallel bus capacitor C5 of the first DC side；
It links together per the anode of the second DC side of phase-shift soft switch topology unit all the way and is connected to the second DC side One end of parallel bus capacitor C6；It links together and connects per the negative terminal of the second DC side of phase-shift soft switch topology unit all the way It is connected to the other end of the parallel bus capacitor C6 of the second DC side；
1st road phase-shift soft switch topology unit includes transformer T1；2nd road phase-shift soft switch topology unit includes transformer T2； 3rd road phase-shift soft switch topology unit includes transformer T3；
The different name end of the primary coil of transformer T1 is connected to the different name end of the primary coil of transformer T2, the primary side of transformer T2 The different name end of coil is connected to the different name end of the primary coil of transformer T3；The different name end of the secondary coil of transformer T1 is connected to The different name end of the secondary coil of transformer T2, the different name end of the secondary coil of transformer T2 are connected to the secondary coil of transformer T3 Different name end；
1st road phase-shift soft switch topology unit further includes switching tube Q1A, switching tube Q2A, switching tube Q1B and switching tube Q2B；2nd road phase-shift soft switch topology unit further includes switching tube Q3A, switching tube Q4A, switching tube Q3B and switching tube Q4B；3rd Road phase-shift soft switch topology unit further includes switching tube Q5A, switching tube Q6A, switching tube Q5B and switching tube Q6B；
The driving of switching tube Q1A is complementary with the driving of switching tube Q2A；The driving of switching tube Q3A and the driving of switching tube Q4A are mutual It mends；The driving of switching tube Q5A is complementary with the driving of switching tube Q6A；The driving of switching tube Q1B is complementary with the driving of switching tube Q2B； The driving of switching tube Q3B is complementary with the driving of switching tube Q4B；The driving of switching tube Q5B is complementary with the driving of switching tube Q6B；It opens Close the driving of pipe Q1A, the driving of switching tube Q3A and the driving of switching tube Q5A successively 120 degree of misphase；When energy is from the first direct current When side is controllably converted into the second DC side, the drive of driving difference advanced switching tube Q1B, Q3B, Q5B of switching tube Q1A, Q3A, Q5A Dynamic angle is α；When energy is controllably converted into the first DC side from the second DC side, the driving point of switching tube Q1A, Q3A, Q5A Not Zhi Hou the driving angle of switching tube Q1B, Q3B, Q5B be β, by adjusting, angle [alpha], the size of β is come regulation power.
CN201910385221.8A 2019-05-09 2019-05-09 A kind of phase-shift soft switch topology unit and its reversible transducer Pending CN110224606A (en)

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