CN110739872A - novel bidirectional high-transformation-ratio SWISS rectifier - Google Patents

novel bidirectional high-transformation-ratio SWISS rectifier Download PDF

Info

Publication number
CN110739872A
CN110739872A CN201911230871.1A CN201911230871A CN110739872A CN 110739872 A CN110739872 A CN 110739872A CN 201911230871 A CN201911230871 A CN 201911230871A CN 110739872 A CN110739872 A CN 110739872A
Authority
CN
China
Prior art keywords
filter
switch tube
bidirectional
switch
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911230871.1A
Other languages
Chinese (zh)
Inventor
颜景斌
马晶晶
朴晶琳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin University of Science and Technology
Original Assignee
Harbin University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harbin University of Science and Technology filed Critical Harbin University of Science and Technology
Priority to CN201911230871.1A priority Critical patent/CN110739872A/en
Publication of CN110739872A publication Critical patent/CN110739872A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B60L53/22—Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/12—Arrangements for reducing harmonics from ac input or output
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac 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
    • H02M7/537—Conversion of dc power input into ac 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, e.g. single switched pulse inverters
    • H02M7/5387—Conversion of dc power input into ac 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, e.g. single switched pulse inverters in a bridge configuration
    • H02M7/53871—Conversion of dc power input into ac 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, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
    • H02M7/53875—Conversion of dc power input into ac 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, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with analogue control of three-phase output
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Rectifiers (AREA)

Abstract

The invention discloses bidirectional high-transformation-ratio SWISS rectifiers, which are characterized in that a basic SWISS rectifier is extended in two directions, a controllable switch is added to enable current to be transmitted to an alternating current side from a direct current side, in addition, a CLLLC resonant bidirectional DC/DC converter is connected to a direct current output end of the bidirectional SWISS rectifier, the CLLLC resonant bidirectional DC/DC converter is symmetrical in circuit structure, and the forward and reverse working performance is achieved.

Description

novel bidirectional high-transformation-ratio SWISS rectifier
Technical Field
The invention relates to the field of three-phase electric energy conversion, in particular to novel SWISS rectifiers.
Technical Field
The electric energy used by the electric automobile can be obtained through renewable energy sources, so that the electric automobile is attracted by all over the world and pushed . the electric automobile vehicle-mounted charger converts alternating current of a power grid into direct current to charge the electric automobile, and the performance of the electric automobile battery has very important influence on the electric automobile and the power grid.
Disclosure of Invention
Compared with the traditional SWISS rectifier, the novel bidirectional SWISS rectifier realizes bidirectional high-transformation-ratio transmission, improves the conversion efficiency of a circuit, has stable output voltage, less harmonic waves, very high voltage regulation rate and load regulation rate, and has a very bright application prospect of .
The technical scheme adopted by the invention is as follows:
novel bidirectional SWISS rectifier with high transformation ratio comprises a main circuit and a control circuit, wherein the main circuit comprises two parts of a bidirectional SWISS rectifier and a CLLLC resonant bidirectional DC/DC converter, the SWISS rectifier comprises a filter circuit, a three-phase uncontrollable rectifier bridge and an active third harmonic current injection circuit network, and the double SWISS rectifier comprises a three-phase uncontrollable rectifier bridge and an active third harmonic current injection circuit networkThe SWISS rectifier is formed by replacing an uncontrollable element in the original SWISS rectifier with a controllable element and adding a controllable switch (S)1~S6、Dp2、Dn2) The CLLLC resonant bidirectional DC-DC converter comprises th ports, a second port, a resonant circuit, a switch loop and transformers, wherein the th port is a power supply end, the other ports are correspondingly used as load ends, and the power supply end is connected with a direct current output end of the bidirectional SWISS rectifier.
The filter circuit comprises a filter inductor LaFilter inductor LbFilter inductor LcFilter capacitor CaFilter capacitor CbAnd a filter capacitor Cc(ii) a Filter inductance La terminal is connected to a-phase alternating current, and filter inductance LaAnother terminal of the filter is connected with the filter capacitor Ca terminal, filter inductance Lb terminal is connected to b-phase AC, and filter inductor LbAnother terminal of the filter is connected with the filter capacitor Cb terminal, filter inductance Lc end connected to C-phase AC power, and filter inductor LcAnother terminal of the filter is connected with the filter capacitor Cc terminal, filter capacitor CaFilter capacitor CbFilter capacitor CcAnd end is connected to .
The three-phase full-control rectifier bridge comprises a switch tube S1Switch tube S2Switch tube S3Switch tube S4Switch tube S5Switch tube S6Two high-frequency switching tubes Dp1、Dn1(ii) a Switching tube S of the rectifying part1Emitter electrode connecting switch tube S2Collector electrode, switching tube S1Emitter and switching tube S2Common node connected with collector and filter inductor La end of the tube, a switch tube S3Emitter electrode connecting switch tube S4Collector electrode, switching tube S3Emitter and switching tube S4Common node connected with collector and filter inductor Lb end of the tube, a switch tube S5Emitter electrode connecting switch tube S6Collector electrode, switching tube S5Emitter and switching tube S6Common node connected with collector and filter inductor Lc end of the rectifying part, and a switching tube S of the rectifying part1Switch tube S3Switch tube S5The common end of the collector is connected with , and the common end of the collector is connected with a high-frequency switch tube Dp1A collector electrode of (a); switching tube S of the rectifying part2Switch tube S4Switch tube S6The common end of the emitter is connected with , and the common end of the emitter is connected with a high-frequency switch tube Dn1An emitter of (1).
The active third harmonic injection circuit mainly comprises three bidirectional switches Sy1、Sy2、Sy3The bidirectional switch is composed of two IGBE tubes connected in series in reverse directiony1 terminal and filter inductance LaConnected, bidirectional switch Sy2 terminal and filter inductance LbConnected, bidirectional switch Sy3 terminal and filter inductance LcConnecting; two-way switch Sy1、Sy2、Sy3Another end is connected with to form a common end, and a switch tube Dp2Emitter and switch tube Dn2Collector connected at to form a common point, a bidirectional switch Sy1、Sy2、Sy3Form a common terminal and a switch tube Dp2Emitter and switch tube Dn2A common point formed by the collectors is connected with , and a capacitor Cf1 end connected switch tube Dp2The emitter end end is connected with a high-frequency switch tube Dp1Collector electrode, capacitor Cf2 end connected switch tube Dn1The emitter end end is connected with a high-frequency switch tube Dn2And a collector.
The output end of the bidirectional SWISS rectifier is the input end of the CLLLC resonant bidirectional DC/DC converter and is connected with the input end of the CLLLC resonant bidirectional DC/DC converter through a capacitor CpnStabilized voltage, capacitor Cpn end connected to high frequency switch tube Dp1The end of the emitter is connected with a high-frequency switch tube Dn1The collector electrode of (1).
The CLLLC resonant bidirectional DC-DC converter comprises four secondary side Mos switches Q1、Q2、Q3、Q4Four secondary side Mos switches Q5、Q6、Q7、Q8 secondary side resonant inductor Lr1Secondary side resonance inductance Lr2 Secondary-side resonant capacitor Cr1Secondary side resonance capacitor Cr2And excited inductance LmFour secondary side switches Q1、Q2、Q3、Q4Resonant inductor L at rear side and secondary side of full-bridge circuitr1 secondary side resonant capacitor Cr1 are connected in series with the capacitor CpnAnd secondary side of transformer, four secondary side switches Q5、Q6、Q7、Q8Form a full bridge circuit and a secondary side resonance inductor Lr2Secondary side resonance capacitor Cr2 are connected in series between the load R and the secondary side of the transformer.
In the upper half bridge of the three-phase power frequency rectifier bridge during forward working, the switch tube corresponding to the maximum instantaneous value of the control voltage is conducted; in the lower half-bridge of industrial frequency rectifier bridge, the switch tube corresponding to the minimum instantaneous value of control voltage is switched on, only two phases of them have current at any time, and the third phase which is not switched on provides extra current channel by means of harmonic current injection network so as to compensate current dead zone, and the high-frequency switch tube D is used for makingp1、Dn1Respectively controlling current to track instantaneous voltage, controlling two phases of current to track corresponding phase voltage according to three-phase symmetry, naturally tracking the phase voltage by the third phase current so as to realize three-phase PFC function, and controlling Mos switch Q1、Q4And Q2、Q3Adding complementary drive signal to realize inversion function, secondary side switch Q5、Q6、Q7、Q8And a driving signal is not added, and a diode with a switching tube connected in anti-parallel is adopted for rectification, so that DC/DC conversion is realized.
Control of Mos switch Q during reverse operation5、Q8And Q6、Q7Adding complementary drive signals to realize inversion function, secondary side switch Q1、Q2、Q3、Q4Without adding drive signal, rectifying by using diode with switching tube in anti-parallel connection to realize DC/DC conversion, and controlling switching tube S1~S6Implementing the inverse of DC/ACVariation and power factor correction.
Drawings
FIG. 1 is a circuit topology structure diagram of novel bidirectional high-transformation-ratio SWISS rectifiers of the present invention;
FIG. 2 shows novel bidirectional SWISS rectifier bidirectional switches S of the present inventiony1、Sy2、Sy3A drive signal;
FIG. 3 shows a Mos switch tube (Q) on the secondary side of novel bidirectional high-transformation-ratio SWISS rectifiers of the present invention1And Q2) Working principle diagram when conducting;
FIG. 4 shows the resonant inductance L of times side of novel bidirectional high-transformation-ratio SWISS rectifiersr1Current and excitation inductance L ofmWorking principle diagrams when the currents are equal;
FIG. 5 shows a Mos switch tube (Q) on the secondary side of novel bidirectional high-transformation-ratio SWISS rectifiers of the present invention1And Q2) Working principle diagram when turning off;
FIG. 6 shows a Mos switch tube (Q) on the secondary side of novel bidirectional high-transformation-ratio SWISS rectifiers of the present invention3And Q4) Working principle diagram when conducting.
Detailed Description
FIG. 1 shows novel bidirectional high-transformation-ratio SWISS rectifiers, wherein a main circuit comprises two parts, namely a bidirectional SWISS rectifier and a CLLLC resonant bidirectional DC/DC converter, the SWISS rectifier is composed of a filter circuit, a three-phase uncontrollable rectifier bridge and an active third harmonic current injection circuit network, and the bidirectional SWISS rectifier is formed by replacing uncontrollable elements in an original SWISS rectifier with controllable elements and additionally arranging controllable switches (S)1~S6、Dp2、Dn2) The CLLLC resonant bidirectional DC-DC converter comprises th ports, a second port, a resonant circuit, a switch loop and transformers, wherein the th port is a power supply end, the other ports are correspondingly used as load ends, and the power supply end is connected with a direct current output end of the bidirectional SWISS rectifier.
The filter circuit comprises a filter inductor LaFilter inductor LbFilter inductor LcFilter capacitor CaFilter capacitor CbAnd a filter capacitor Cc(ii) a Filter inductance La terminal is connected to a-phase alternating current, and filter inductance LaAnother terminal of the filter is connected with the filter capacitor Ca terminal, filter inductance Lb terminal is connected to b-phase AC, and filter inductor LbAnother terminal of the filter is connected with the filter capacitor Cb terminal, filter inductance Lc end connected to C-phase AC power, and filter inductor LcAnother terminal of the filter is connected with the filter capacitor Cc terminal, filter capacitor CaFilter capacitor CbFilter capacitor CcAnd end is connected to .
The three-phase full-control rectifier bridge comprises a switch tube S1Switch tube S2Switch tube S3Switch tube S4Switch tube S5Switch tube S6Two high-frequency switching tubes Dp1、Dn1(ii) a Switching tube S of the rectifying part1Emitter electrode connecting switch tube S2Collector electrode, switching tube S1Emitter and switching tube S2Common node connected with collector and filter inductor La end of the tube, a switch tube S3Emitter electrode connecting switch tube S4Collector electrode, switching tube S3Emitter and switching tube S4Common node connected with collector and filter inductor Lb end of the tube, a switch tube S5Emitter electrode connecting switch tube S6Collector electrode, switching tube S5Emitter and switching tube S6Common node connected with collector and filter inductor Lc end of the rectifying part, and a switching tube S of the rectifying part1Switch tube S3Switch tube S5The common end of the collector is connected with , and the common end of the collector is connected with a high-frequency switch tube Dp1A collector electrode of (a); switching tube S of the rectifying part2Switch tube S4Switch tube S6The common end of the emitter is connected with , and the common end of the emitter is connected with a high-frequency switch tube Dn1An emitter of (1).
The active third harmonic injection circuit is mainly threeA two-way switch Sy1、Sy2、Sy3The bidirectional switch is composed of two IGBE tubes connected in series in reverse directiony1 terminal and filter inductance LaConnected, bidirectional switch Sy2 terminal and filter inductance LbConnected, bidirectional switch Sy3 terminal and filter inductance LcConnecting; two-way switch Sy1、Sy2、Sy3Another end is connected with to form a common end, and a switch tube Dp2Emitter and switch tube Dn2Collector connected at to form a common point, a bidirectional switch Sy1、Sy2、Sy3Form a common terminal and a switch tube Dp2Emitter and switch tube Dn2A common point formed by the collectors is connected with , and a capacitor Cf1 end connected switch tube Dp2The emitter end end is connected with a high-frequency switch tube Dp1Collector electrode, capacitor Cf2 end connected switch tube Dn1The emitter end end is connected with a high-frequency switch tube Dn2And a collector.
The output end of the bidirectional SWISS rectifier is the input end of the CLLLC resonant bidirectional DC/DC converter and is connected with the input end of the CLLLC resonant bidirectional DC/DC converter through a capacitor CpnStabilized voltage, capacitor Cpn end connected to high frequency switch tube Dp1The end of the emitter is connected with a high-frequency switch tube Dn1The collector electrode of (1).
The CLLLC resonant bidirectional DC-DC converter comprises four secondary side Mos switches Q1、Q2、Q3、Q4Four secondary side Mos switches Q5、Q6、Q7、Q8 secondary side resonant inductor Lr1Secondary side resonance inductance Lr2 Secondary-side resonant capacitor Cr1Secondary side resonance capacitor Cr2And excited inductance LmFour secondary side switches Q1、Q2、Q3、Q4Resonant inductor L at rear side and secondary side of full-bridge circuitr1 secondary side resonant capacitor Cr1 are connected in series with the capacitor CpnAnd secondary side of transformer, four secondary side switches Q5、Q6、Q7、Q8Composition ofFull-bridge parallel-parallel and secondary side resonant inductor Lr2Secondary side resonance capacitor Cr2 are connected in series between the load R and the secondary side of the transformer.
In the upper half bridge of the three-phase power frequency rectifier bridge during forward working, the switch tube corresponding to the maximum instantaneous value of the control voltage is conducted; in the lower half-bridge of industrial frequency rectifier bridge, the switch tube corresponding to the minimum instantaneous value of control voltage is switched on, only two phases of them have current at any time, and the third phase which is not switched on provides extra current channel by means of harmonic current injection network so as to compensate current dead zone, and the high-frequency switch tube D is used for makingp1、Dn1Respectively controlling current to track instantaneous voltage, controlling two phases of current to track corresponding phase voltage according to three-phase symmetry, naturally tracking the phase voltage by the third phase current so as to realize three-phase PFC function, and controlling Mos switch Q1、Q4And Q2、Q3Adding complementary drive signal to realize inversion function, secondary side switch Q5、Q6、Q7、Q8And a driving signal is not added, and a diode with a switching tube connected in anti-parallel is adopted for rectification, so that DC/DC conversion is realized.
Control of Mos switch Q during reverse operation5、Q8And Q6、Q7Adding complementary drive signals to realize inversion function, secondary side switch Q1、Q2、Q3、Q4Without adding drive signal, rectifying by using diode with switching tube in anti-parallel connection to realize DC/DC conversion, and controlling switching tube S1~S6The inversion of DC/AC and the correction of power factor are realized.
The method comprises the steps of starting a bidirectional SWISS rectifier according to a normal forward charging working mode in the working process, carrying out double closed loop work after soft start is completed, wherein power transmission is basically avoided, after a stable direct current bus voltage is established by an th bidirectional SWISS rectifier, a second-stage CLLLC resonant bidirectional DC-DC converter is ready to start, gradually reducing the working frequency to a preset stable working point according to a proper soft start strategy, then starting normal work, finishing integral start of the whole machine, starting a two-stage circuit of the converter to stably run to realize power transmission, and when reverse work discharge is needed, transmitting energy on the output side of a rear-stage bidirectional DC/DC to a power grid through a direct current bus by means of a th-stage circuit.

Claims (8)

1. The A SWISS rectifier with high bidirectional transform ratio as claimed in claim 1, comprising a main circuit and a control circuit, wherein the main circuit comprises a bidirectional SWISS rectifier and a CLLLC resonant bidirectional DC/DC converter, the SWISS rectifier comprises a filter circuit, a three-phase uncontrollable rectifier bridge and an active third harmonic current injection circuit network, and the bidirectional SWISS rectifier is formed by replacing uncontrollable elements in the original SWISS rectifier with controllable elements and adding controllable switches (S)1~S6、Dp2、Dn2) The CLLLC resonant bidirectional DC-DC converter comprises th ports, a second port, a resonant circuit, a switch loop and transformers, wherein the th port is a power supply end, the other ports are correspondingly used as load ends, and the power supply end is connected with a direct current output end of the bidirectional SWISS rectifier.
2. The new-type bidirectional SWISS rectifier as set forth in claim 1, wherein the filter circuit includes a filter inductor LaFilter inductor LbFilter inductor LcFilter capacitor CaFilter capacitor CbAnd a filter capacitor Cc(ii) a Filter inductance La terminal is connected to a-phase alternating current, and filter inductance LaAnother terminal of the filter is connected with the filter capacitor Ca terminal, filter inductance Lb terminal is connected to b-phase AC, and filter inductor LbAnother terminal of the filter is connected with the filter capacitor Cb terminal, filter inductance Lc end connected to C-phase AC power, and filter inductor LcAnother terminal of the filter is connected with the filter capacitor Cc terminal, filter capacitor CaFilter capacitor CbFilter capacitor CcAnd end is connected to .
3. The novel pairs of claim 1The SWISS rectifier with the high conversion ratio is characterized in that: the three-phase full-control rectifier bridge comprises a switch tube S1Switch tube S2Switch tube S3Switch tube S4Switch tube S5Switch tube S6Two high-frequency switching tubes Dp1、Dn1(ii) a Switching tube S of the rectifying part1Emitter electrode connecting switch tube S2Collector electrode, switching tube S1Emitter and switching tube S2Common node connected with collector and filter inductor La end of the tube, a switch tube S3Emitter electrode connecting switch tube S4Collector electrode, switching tube S3Emitter and switching tube S4Common node connected with collector and filter inductor Lb end of the tube, a switch tube S5Emitter electrode connecting switch tube S6Collector electrode, switching tube S5Emitter and switching tube S6Common node connected with collector and filter inductor Lc end of the rectifying part, and a switching tube S of the rectifying part1Switch tube S3Switch tube S5The common end of the collector is connected with , and the common end of the collector is connected with a high-frequency switch tube Dp1A collector electrode of (a); switching tube S of the rectifying part2Switch tube S4Switch tube S6The common end of the emitter is connected with , and the common end of the emitter is connected with a high-frequency switch tube Dn1An emitter of (1).
4. The new-type bidirectional SWISS rectifiers as claimed in claim 1, wherein said active third harmonic injection circuit comprises three bidirectional switches Sy1、Sy2、Sy3The bidirectional switch is composed of two IGBE tubes connected in series in reverse directiony1 terminal and filter inductance LaConnected, bidirectional switch Sy2 terminal and filter inductance LbConnected, bidirectional switch Sy3 terminal and filter inductance LcConnecting; two-way switch Sy1、Sy2、Sy3Another end is connected with to form a common end, and a switch tube Dp2Emitter and switch tube Dn2The collector is connected with Forming a common point; two-way switch Sy1、Sy2、Sy3Form a common terminal and a switch tube Dp2Emitter and switch tube Dn2A common point formed by the collectors is connected with , and a capacitor Cf1 end connected switch tube Dp2The emitter end end is connected with a high-frequency switch tube Dp1Collector electrode, capacitor Cf2 end connected switch tube Dn1The emitter end end is connected with a high-frequency switch tube Dn2And a collector.
5. The kinds of new-type bidirectional SWISS rectifiers as claimed in claim 1, wherein the output terminal of said bidirectional SWISS rectifier is the input terminal of CLLLC resonant bidirectional DC/DC converter, passing through capacitor CpnStabilized voltage, capacitor Cpn end connected to high frequency switch tube Dp1The end of the emitter is connected with a high-frequency switch tube Dn1The collector electrode of (1).
6. The novel bidirectional SWISS rectifiers as claimed in claim 1, wherein said CLLLC resonant bidirectional DC-DC converter comprises four -order side Mos switch Q1、Q2、Q3、Q4Four secondary side Mos switches Q5、Q6、Q7、Q8 secondary side resonant inductor Lr1Secondary side resonance inductance Lr2 Secondary-side resonant capacitor Cr1Secondary side resonance capacitor Cr2And excited inductance LmFour secondary side switches Q1、Q2、Q3、Q4Resonant inductor L at rear side and secondary side of full-bridge circuitr1 secondary side resonant capacitor Cr1 are connected in series with the capacitor CpnAnd secondary side of transformer, four secondary side switches Q5、Q6、Q7、Q8Form a full bridge circuit and a secondary side resonance inductor Lr2Secondary side resonance capacitor Cr2 are connected in series between the load R and the secondary side of the transformer.
7. Such as rightThe novel bidirectional SWISS rectifiers with high transformation ratio as claimed in claim 1, wherein the switching tubes corresponding to the maximum instantaneous value of the control voltage are conducted in the upper half bridge of the three-phase power frequency rectifier bridge during forward operation, the switching tubes corresponding to the minimum instantaneous value of the control voltage are conducted in the lower half bridge of the power frequency rectifier bridge, only two phases of the three-phase power frequency rectifier bridge have current at any time, the third phase of the three-phase power frequency rectifier bridge which is not conducted with current provides an extra current path through the harmonic current injection network, so that the current dead zone is compensated, and the high-frequency switching tube D is used for compensating the current dead zonep1、Dn1Respectively controlling current to track instantaneous voltage, controlling two phases of current to track corresponding phase voltage according to three-phase symmetry, naturally tracking the phase voltage by the third phase current so as to realize three-phase PFC function, and controlling Mos switch Q1、Q4And Q2、Q3Adding complementary drive signal to realize inversion function, secondary side switch Q5、Q6、Q7、Q8And a driving signal is not added, and a diode with a switching tube connected in anti-parallel is adopted for rectification, so that DC/DC conversion is realized.
8. The new-type bidirectional SWISS rectifier as set forth in claim 1, wherein the Mos switch Q is controlled during reverse operation5、Q8And Q6、Q7Adding complementary drive signals to realize inversion function, secondary side switch Q1、Q2、Q3、Q4Without adding drive signal, rectifying by using diode with switching tube in anti-parallel connection to realize DC/DC conversion, and controlling switching tube S1~S6The inversion of DC/AC and the correction of power factor are realized.
CN201911230871.1A 2019-12-05 2019-12-05 novel bidirectional high-transformation-ratio SWISS rectifier Pending CN110739872A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911230871.1A CN110739872A (en) 2019-12-05 2019-12-05 novel bidirectional high-transformation-ratio SWISS rectifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911230871.1A CN110739872A (en) 2019-12-05 2019-12-05 novel bidirectional high-transformation-ratio SWISS rectifier

Publications (1)

Publication Number Publication Date
CN110739872A true CN110739872A (en) 2020-01-31

Family

ID=69274381

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911230871.1A Pending CN110739872A (en) 2019-12-05 2019-12-05 novel bidirectional high-transformation-ratio SWISS rectifier

Country Status (1)

Country Link
CN (1) CN110739872A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112532101A (en) * 2020-12-17 2021-03-19 哈尔滨理工大学 Novel two-way high transformation ratio VIENNA rectifier
CN115065230A (en) * 2022-07-19 2022-09-16 哈尔滨工业大学 Three-phase bridgeless SEPIC type PFC converter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105471252A (en) * 2016-01-05 2016-04-06 福州大学 Harmonic-current injection type three-phase power factor correction circuit with high voltage-reduction transformation ratio
CN109742965A (en) * 2019-01-11 2019-05-10 浙江大学 A kind of high-frequency isolation type AC-DC converter of single-phase crisscross parallel three level resonance formula
CN110299859A (en) * 2019-07-11 2019-10-01 哈尔滨理工大学 A kind of Three phase voltage-source recitifier

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105471252A (en) * 2016-01-05 2016-04-06 福州大学 Harmonic-current injection type three-phase power factor correction circuit with high voltage-reduction transformation ratio
CN109742965A (en) * 2019-01-11 2019-05-10 浙江大学 A kind of high-frequency isolation type AC-DC converter of single-phase crisscross parallel three level resonance formula
CN110299859A (en) * 2019-07-11 2019-10-01 哈尔滨理工大学 A kind of Three phase voltage-source recitifier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112532101A (en) * 2020-12-17 2021-03-19 哈尔滨理工大学 Novel two-way high transformation ratio VIENNA rectifier
CN115065230A (en) * 2022-07-19 2022-09-16 哈尔滨工业大学 Three-phase bridgeless SEPIC type PFC converter

Similar Documents

Publication Publication Date Title
CN108448913B (en) Single-stage isolated AC-DC converter based on staggered parallel bridgeless PFC circuit and LLC resonance
CN106740220B (en) Wireless charging circuit of constant-current constant-voltage composite topology
CN111355398B (en) Bidirectional vehicle-mounted charger circuit integrated with DC/DC converter
CN109560711B (en) Isolated bidirectional DC-DC converter and modulation method thereof
CN102364860B (en) Secondary side phase-shifting controlled full-bridge converter
CN108988451A (en) Isolation type bidirectional charger control method and control circuit
CN110190751B (en) Constant-gain bidirectional DC-DC resonant converter and control method thereof
CN109104108B (en) Soft switch type single-stage high-frequency isolation rectifier with active clamp
CN111463878A (en) Compatible high-power double-end output vehicle-mounted charger and control method thereof
CN114301301A (en) Wide-range resonant soft-switching bidirectional direct-current converter and control method thereof
CN103441680B (en) A kind of soft switching full-bridge direct-current converter reducing circulation loss
CN110601525B (en) Integrated vehicle-mounted charging conversion system of new energy automobile
CN111431415B (en) High-boost isolated DC converter with parallel input and series output
CN110829878A (en) Novel bidirectional AC/DC converter
CN111245247A (en) Isolated bidirectional resonant soft-switching DC-DC converter
CN211127590U (en) Phase-shifted full-bridge zero-voltage zero-current soft switching DC-DC converter
CN115694203B (en) DC isolated converter capable of bidirectional conversion and control method thereof
CN114301300A (en) Wide-range bidirectional resonant soft-switching direct-current converter and control method thereof
CN111245078A (en) Bidirectional vehicle-mounted charger circuit integrated with DC/DC converter
CN111884521B (en) Single-stage Boost full-bridge Boost zero-current switch direct-current converter and control method thereof
CN111464040A (en) DCDC framework suitable for different input power grids and control method thereof
CN108736756B (en) Improved double-auxiliary resonant-pole three-phase soft switching inverter circuit
CN217087777U (en) Wide-range resonant soft-switching bidirectional direct-current converter
CN114257097B (en) Wide-output direct-current converter with multi-mode switching and switching control thereof
CN103606953A (en) Single-stage boosting three-phase flyback inverter for solar energy grid-connected power generation

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20200131