CN105720826A - Hybrid bridge type double-voltage rectification and output parallel single-stage inverter - Google Patents

Hybrid bridge type double-voltage rectification and output parallel single-stage inverter Download PDF

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Publication number
CN105720826A
CN105720826A CN201610181548.XA CN201610181548A CN105720826A CN 105720826 A CN105720826 A CN 105720826A CN 201610181548 A CN201610181548 A CN 201610181548A CN 105720826 A CN105720826 A CN 105720826A
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CN
China
Prior art keywords
diode
switching tube
electric capacity
voltage
bridge type
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Pending
Application number
CN201610181548.XA
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Chinese (zh)
Inventor
嵇保健
虞超群
洪峰
孙柯
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Nanjing Tech University
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Nanjing Tech University
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Priority to CN201610181548.XA priority Critical patent/CN105720826A/en
Publication of CN105720826A publication Critical patent/CN105720826A/en
Pending legal-status Critical Current

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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
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0083—Converters characterised by their input or output configuration

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

Abstract

A hybrid bridge type double-voltage rectification and output parallel single-stage inverter comprises a primary-side hybrid bridge type circuit, a secondary-side first double-voltage rectification circuit and a second double-voltage rectification circuit, wherein the output voltage of the first double-voltage rectification circuit works in a positive half period, and the output voltage of the second double-voltage rectification circuit works in a negative half period to obtain inversion output. The single-stage inverter has the advantages of simplicity in circuit structure, electrical isolation, single-stage conversion and high output waveform quality, and the requirement of high gain, high efficiency and low output pulse can be achieved; and with the introduction of a double-voltage rectification mode into the circuit, the switch-off of secondary-current zero current is achieved, and the efficiency is further improved. The inverter adopts a single-input power supply, and the defect that a traditional output parallel combined single-stage inverter requires a dual-input power supply is overcome. Moreover, the inverter works in a half period, low current flows through the device during working, and the efficiency is improved; and the control scheme is simple and is easy to implement.

Description

Mixing bridge type voltage multiplying rectifier output-parallel single-stage inverter
One, technical field
The present invention relates to a kind of isolated form, High-gain single-stage changer, belong to the inverter style in electrical energy changer.
Two, background technology
Along with the development of Power Electronic Technique, the inverter with isolation, high-gain and high efficiency feature obtains research widely and application, and high reliability, high power density, small size are always up the target of single-stage inverter development.Two-stage type structure inverter relative to traditional prime DC/DC straight convertor and rear class DC/AC inverter, this output-parallel combination single-stage inverter can realize single supply input, the power conversion efficiency advantages of higher that system structure is simple, expense is little, machine volume weight is little, overall, meets low input grade occasion demand.On the other hand, it is desirable to this single-stage inverter is high frequency electrical isolation, to meet actual requirement, and volume weight requirement is met.
Three, summary of the invention
1, goal of the invention: it is an object of the invention to provide a kind of can realize boosting inversion, realize high frequency electrical isolation and there is the single-stage inverter of bigger output.
2, technical scheme: for solving above-mentioned technical problem, the mixing bridge type voltage multiplying rectifier output-parallel single-stage inverter of the present invention includes former limit mixing bridge type circuit and is again double tube positive exciting circuit, secondary voltage doubling rectifing circuit 1 and voltage doubling rectifing circuit 2.Mixing bridge type circuit includes the first electric capacity C1, the first switching tube S1, the first diode D1, second switch pipe S2, the second diode D2；Voltage doubling rectifing circuit 1 includes the second electric capacity C2, the 3rd switching tube S3, the 3rd diode D3, the first inductance L1；Voltage doubling rectifing circuit 2 includes the 3rd electric capacity C3, the 4th switching tube S4, the 4th diode D4, the first inductance L1.The mixing bridge type voltage multiplying rectifier output-parallel single-stage inverter of the present invention is characterised by, the first electric capacity C1One end, the first switching tube S1Drain electrode, the second diode D2Negative electrode and external power supply UiPositive pole connect；First electric capacity C1The other end, the first diode D1Anode, second switch pipe S2Source electrode and external power supply UiNegative electrode be connected；First switching tube S1Source electrode, the first diode D1Negative electrode, transformer primary side Same Name of Ends connects；Second diode D2Anode, second switch pipe S2Drain electrode, transformer primary side different name end be connected；Second electric capacity C2One end, transformer secondary 1 different name end are connected；Second electric capacity C2The other end, the 3rd switching tube S3Drain electrode, the 3rd diode D3Cathode terminal connect；3rd switching tube S3Source electrode, the first inductance L1One end be connected；3rd diode D3Anode, transformer secondary 1 Same Name of Ends connect；3rd electric capacity C3One end, transformer secondary 2 Same Name of Ends are connected；3rd electric capacity C3The other end, the 4th switching tube S4Drain electrode, the 4th diode D4Cathode terminal connect；4th switching tube S3Source electrode, the 3rd diode D3Anode tap be connected；4th diode D4Anode, transformer secondary 2 different name end connect.
3, beneficial effect: the mixing bridge type voltage multiplying rectifier output-parallel single-stage inverter of the present invention, has the advantage that (1) single input power supply, overcomes the shortcoming that the tradition combined single-stage inverter of output-parallel needs dual input power supply；(2) there is inherent boost capability；(3) half period work, during work, to flow through device few for electric current, introduces voltage multiplying rectifier mode, it is achieved secondary zero-current switching, improves efficiency；(4) control program is simple, it is easy to accomplish.
Four, accompanying drawing explanation
Fig. 1 is the electrical block diagram of the mixing bridge type voltage multiplying rectifier output-parallel single-stage inverter of the present invention, label title: 1. voltage doubling rectifing circuit 1；2. voltage doubling rectifing circuit 2.
The circuit that Fig. 2 is the mixing bridge type voltage multiplying rectifier output-parallel single-stage inverter of the present invention respectively switchs mode schematic diagram.
Primary symbols title in figure: S1、S2、S3、S4First, second, third, fourth switching tube；C1～C3First～the 3rd electric capacity；L1First inductance；UiExternal direct current power supply；D1、D2、D3、D4,～first～the 4th diode；UgElectrical network.
Five, detailed description of the invention
As it is shown in figure 1, this example is mixing bridge type voltage multiplying rectifier output-parallel single-stage inverter, it is characterised in that the first electric capacity C1One end, the first switching tube S1Drain electrode, the second diode D2Negative electrode and external power supply UiPositive pole connect；First electric capacity C1The other end, the first diode D1Anode, second switch pipe S2Source electrode and external power supply UiNegative electrode be connected；First switching tube S1Source electrode, the first diode D1Negative electrode, transformer primary side Same Name of Ends connects；Second diode D2Anode, second switch pipe S2Drain electrode, transformer primary side different name end be connected；Second electric capacity C2One end, transformer secondary 1 different name end are connected；Second electric capacity C2The other end, the 3rd switching tube S3Drain electrode, the 3rd diode D3Cathode terminal connect；3rd switching tube S3Source electrode, the first inductance L1One end be connected；3rd diode D3Anode, transformer secondary 1 Same Name of Ends connect；3rd electric capacity C3One end, transformer secondary 2 Same Name of Ends are connected；3rd electric capacity C3The other end, the 4th switching tube S4Drain electrode, the 4th diode D4Cathode terminal connect；4th switching tube S3Source electrode, the 3rd diode D3Anode tap be connected；4th diode D4Anode, transformer secondary 2 different name end connect.Voltage doubling rectifing circuit 1 positive polarity exports, and voltage doubling rectifing circuit 2 negative polarity exports, and therefore, single-stage inverter only needs single input power supply.Additionally, inverter is half period work, during work, to flow through device few for electric current, improves efficiency.
Below with accompanying drawing 1 for main circuit structure, describe specific works principle and the operation mode of the mixing bridge type voltage multiplying rectifier output-parallel single-stage inverter of the present invention in conjunction with accompanying drawing 2.At the positive half cycle of output voltage, the 3rd switching tube S3Constantly on, the first switching tube S1, second switch pipe S2High frequency sinusoidal is modulated；At the negative half period of output voltage, the 4th switching tube S4Constantly on, the 3rd switching tube S3High frequency sinusoidal is modulated, the first switching tube S1, second switch pipe S2High frequency sinusoidal is modulated.
Operation mode I: as shown in Fig. 2 (a), at the positive half cycle of output voltage, the 3rd switching tube S3Constantly on, the 4th switching tube S4Turn off.Now, the first switching tube S1, second switch pipe S2Conducting, the first diode D1, the second diode D2Cut-off；Primary side current of transformer is at external power supply UiEffect lower linear rise, original edge voltage is Ui, polarity is as shown in FIG..Transformer secondary voltage is to the second electric capacity C2Charging, charging voltage is Ui；
Operation mode II: as shown in Fig. 2 (b), at the positive half cycle of output voltage, the 3rd switching tube S3Constantly on, the 4th switching tube S4Turn off.Now, the first switching tube S1, second switch pipe S2Turn off, the first diode D1, the second diode D2Conducting；Primary voltage of transformer opposite polarity, secondary voltage and the second electric capacity C2Voltage Series and 2Ui, electrical network is exported energy.
Operation mode III: as shown in Fig. 2 (c), at the negative half period of output voltage, the 4th switching tube S4Constantly on, the 3rd switching tube S3Turn off.Now, the first switching tube S1, second switch pipe S2Conducting, the first diode D1, the second diode D2Cut-off；Primary side current of transformer is at external power supply UiEffect lower linear rise, original edge voltage is Ui, polarity is as shown in FIG..Transformer secondary voltage and the 3rd electric capacity C3Discharged in series, discharge voltage is 2Ui；Electrical network is exported energy.
Operation mode IV: as shown in Fig. 2 (d), at the negative half period of output voltage, the 4th switching tube S4Conducting, the 3rd switching tube S3Turn off.Now, the first switching tube S1, second switch pipe S2Turn off, the first diode D1, the second diode D2Conducting；Primary voltage of transformer is Ui, polarity is as shown in FIG..Transformer secondary voltage is to the second electric capacity C2Charging, charging voltage is Ui；
As seen from the above description, the mixing bridge type voltage multiplying rectifier output-parallel single-stage inverter of the present invention, this inverter has the advantage that
(1) single input power supply, overcomes the shortcoming that the tradition combined single-stage inverter of output-parallel needs dual input power supply；
(2) there is the ability of high-gain, electrical isolation and low output ripple；
(3) half period work, during work, to flow through device few for electric current, improves efficiency；
(4) control program is simple, it is easy to accomplish.

Claims (1)

1. mixing bridge type voltage multiplying rectifier output-parallel single-stage inverter includes former limit mixing bridge type circuit and is again double tube positive exciting circuit, secondary voltage doubling rectifing circuit 1 and voltage doubling rectifing circuit 2.Mixing bridge type circuit includes the first electric capacity C1, the first switching tube S1, the first diode D1, second switch pipe S2, the second diode D2；Voltage doubling rectifing circuit 1 includes the second electric capacity C2, the 3rd switching tube S3, the 3rd diode D3, the first inductance L1；Voltage doubling rectifing circuit 2 includes the 3rd electric capacity C3, the 4th switching tube S4, the 4th diode D4, the first inductance L1.The mixing bridge type voltage multiplying rectifier output-parallel single-stage inverter of the present invention is characterised by, the first electric capacity C1One end, the first switching tube S1Drain electrode, the second diode D2Negative electrode and external power supply UiPositive pole connect；First electric capacity C1The other end, the first diode D1Anode, second switch pipe S2Source electrode and external power supply UiNegative electrode be connected；First switching tube S1Source electrode, the first diode D1Negative electrode, transformer primary side Same Name of Ends connects；Second diode D2Anode, second switch pipe S2Drain electrode, transformer primary side different name end be connected；Second electric capacity C2One end, transformer secondary 1 different name end are connected；Second electric capacity C2The other end, the 3rd switching tube S3Drain electrode, the 3rd diode D3Cathode terminal connect；3rd switching tube S3Source electrode, the first inductance L1One end be connected；3rd diode D3Anode, transformer secondary 1 Same Name of Ends connect；3rd electric capacity C3One end, transformer secondary 2 Same Name of Ends are connected；3rd electric capacity C3The other end, the 4th switching tube S4Drain electrode, the 4th diode D4Cathode terminal connect；4th switching tube S3Source electrode, the 3rd diode D3Anode tap be connected；4th diode D4Anode, transformer secondary 2 different name end connect.
CN201610181548.XA 2016-03-24 2016-03-24 Hybrid bridge type double-voltage rectification and output parallel single-stage inverter Pending CN105720826A (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108242895A (en) * 2017-02-14 2018-07-03 陈扬 Hybrid full-bridge voltage-doubler rectifier and its single-stage converter
CN108448904A (en) * 2018-05-28 2018-08-24 钟曙 A kind of single-stage and two points one channel switch power amplifier of two-stage mixed high-efficient rate low distortion
CN114884363A (en) * 2022-05-10 2022-08-09 西南交通大学 Double LLC resonant converter with six-time gain ratio and control method thereof
WO2022237431A1 (en) * 2021-05-14 2022-11-17 Oppo广东移动通信有限公司 Resonant converter, power supply, terminal and boosting method
CN116633160A (en) * 2023-07-26 2023-08-22 南京航空航天大学 Single-stage isolated bidirectional/unidirectional DC-DC converter and control method

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108242895A (en) * 2017-02-14 2018-07-03 陈扬 Hybrid full-bridge voltage-doubler rectifier and its single-stage converter
CN108242895B (en) * 2017-02-14 2019-12-17 陈扬 hybrid full-bridge voltage-multiplying rectifier and single-stage converter thereof
CN108448904A (en) * 2018-05-28 2018-08-24 钟曙 A kind of single-stage and two points one channel switch power amplifier of two-stage mixed high-efficient rate low distortion
WO2022237431A1 (en) * 2021-05-14 2022-11-17 Oppo广东移动通信有限公司 Resonant converter, power supply, terminal and boosting method
CN114884363A (en) * 2022-05-10 2022-08-09 西南交通大学 Double LLC resonant converter with six-time gain ratio and control method thereof
CN116633160A (en) * 2023-07-26 2023-08-22 南京航空航天大学 Single-stage isolated bidirectional/unidirectional DC-DC converter and control method
CN116633160B (en) * 2023-07-26 2023-09-26 南京航空航天大学 Single-stage isolated bidirectional/unidirectional DC-DC converter and control method

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