CN106487249A - A kind of high-gain non-bridge PFC changer for low-voltage, high-current occasion - Google Patents

A kind of high-gain non-bridge PFC changer for low-voltage, high-current occasion Download PDF

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Publication number
CN106487249A
CN106487249A CN201610911756.0A CN201610911756A CN106487249A CN 106487249 A CN106487249 A CN 106487249A CN 201610911756 A CN201610911756 A CN 201610911756A CN 106487249 A CN106487249 A CN 106487249A
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CN
China
Prior art keywords
winding
switch pipe
power switch
master power
changer
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Pending
Application number
CN201610911756.0A
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Chinese (zh)
Inventor
程朵朵
王慧贞
姜浩宇
张红岩
施艳萍
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Nanjing University of Aeronautics and Astronautics
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Nanjing University of Aeronautics and Astronautics
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Application filed by Nanjing University of Aeronautics and Astronautics filed Critical Nanjing University of Aeronautics and Astronautics
Priority to CN201610911756.0A priority Critical patent/CN106487249A/en
Publication of CN106487249A publication Critical patent/CN106487249A/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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/14—Arrangements for reducing ripples from dc 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • 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
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1582—Buck-boost converters
    • 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)
  • Rectifiers (AREA)

Abstract

The present invention discloses a kind of high-gain non-bridge PFC changer for low-voltage, high-current occasion, including with the first winding L1, the second winding L2Coupling inductance, the first master power switch pipe S3, the second master power switch pipe S4, the first auxiliary switch S1, the second auxiliary switch S2With electric capacity Co.This circuit topology can be used for needing PFC, and input voltage is low, electric current is big, the occasion of high-gain.The present invention, on the basis of traditional non-bridge PFC converter topology, replaces original inductance using coupling inductance, realizes high-gain by coupling inductance, it is to avoid dutycycle is constantly in the state of limit dutycycle；And the present invention adopts switching tube to replace the diode in script non-bridge PFC converter topology, reduces the on-state loss of entirely topology, improves system effectiveness.Circuit structure of the present invention is simple, low, efficiency high is lost, and achievable AC unity power factor runs.

Description

A kind of high-gain non-bridge PFC changer for low-voltage, high-current occasion
Technical field：
The present invention relates to AC/DC conversion field, more particularly, to a kind of high-gain non-bridge PFC for low-voltage, high-current occasion Changer.
Background technology：
Increasingly serious with global energy crisis and environmental pollution, the regenerative resource such as solar energy, wind energy, ocean energy is got over More to receive global concern.Wave energy is a kind of form of ocean energy, and rational and efficient use wave energy is endangered to solving the energy Machine, environmental protection are significant.Magnetohydrodynamic(MHD) generator is a kind of device that wave energy is converted into electric energy, however, magnetic current The electric energy power factor of body electromotor output is low, and its output voltage is low, output current big, needs a kind of height in actual applications The non-bridge PFC changer of gain is boosted to it and PFC.
Traditional non-bridge PFC changer can realize the function of boosting and PFC, but only in the limit Higher voltage could be exported under conditions of dutycycle.In order to reach higher output busbar voltage, dutycycle can be led to always It is in limit state, limit dutycycle can bring a series of adverse effect：Larger current ripples, changer are more susceptible to parasitism The impact of parameter, output voltage do not reach preset value, simultaneously turn on loss increase lead to transducer effciency reduce.In input voltage In the case that relatively low, input current is larger, the ratio that the diode current flow loss of traditional non-bridge PFC is shared increases, and also results in Transducer effciency reduces.
Above-mentioned in order to solve the problems, such as, the present invention proposes a kind of high-gain non-bridge PFC for low-voltage, high-current occasion Changer.
Content of the invention：
The voltage gain that the present invention is directed to traditional non-bridge PFC changer is not high, high-gain when non-bridge PFC changer work always Make in limit dutycycle state, input and output current ripples big the problems such as it is proposed that a kind of height for low-voltage, high-current occasion Gain non-bridge PFC changer, solves traditional non-bridge PFC and applies in high-gain occasion problem encountered, and this changer knot Structure is simple, and low, efficiency high is lost.
The present invention adopts the following technical scheme that：A kind of high-gain non-bridge PFC changer for low-voltage, high-current occasion, bag Include with the first winding L1, the second winding L2Coupling inductance, the first master power switch pipe S3, the second master power switch pipe S4, the One auxiliary switch S1, the second auxiliary switch S2With electric capacity Co, the first winding L of described coupling inductance1Same Name of Ends and input Alternating current power supply VinOne end connect, the first winding L1Different name end respectively with the first auxiliary switch S1Source electrode and the first main work( Rate switching tube S3Drain electrode connect；Second winding L of coupling inductance2Same Name of Ends respectively with the first auxiliary switch S1Drain electrode With the second auxiliary switch S2Drain electrode connect, the second winding L2Different name end with load one end be connected；Input ac power VinThe other end respectively with the second auxiliary switch S2Source electrode and the second master power switch pipe S4Drain electrode connect；Load is another One end respectively with the first master power switch pipe S3Source electrode and the second master power switch pipe S4Source electrode connect.
Further, as input ac power VinIn positive half cycle, the first master power switch pipe S3Hourglass source electrode between hold By forward voltage, its turn-on and turn-off are controlled by given signal；When being operated in the positive half cycle of exchange, coupling inductance First winding L1, the second winding L2, the first auxiliary switch S1, the first master power switch pipe S3, the second master power switch pipe S4Altogether With one high-gain Boost PFC loop of composition.
Further, as input ac power VinIn negative half period, the second master power switch pipe S4Hourglass source electrode between hold By forward voltage, its turn-on and turn-off are controlled by given signal；When being operated in exchange negative half period, coupling inductance First winding L1, the second winding L2, the second auxiliary switch S2, the first master power switch pipe S3, the second master power switch pipe S4Altogether With one high-gain Boost PFC loop of composition.
Further, as input ac power VinIn positive half cycle, the second master power switch pipe S4It is in constantly on State, the second auxiliary switch S2It is in the state turning off always；As input ac power VinIn negative half period, the first main power Switching tube S3It is in constantly on state, the first auxiliary switch S1It is in the state turning off always, that is, in input ac power VinDuring positive-negative half-cycle, all there are switching frequency and the input ac power V of a brachium pontisinFrequency identical.
Further, described high-gain non-bridge PFC changer comprises a boosting coupling inductance, and the turn ratio is N=N2：N1, its Middle N1The first winding L for coupling inductance1The number of turn, N2The second winding L for coupling inductance2The number of turn.
Further, described high-gain non-bridge PFC changer uses the first auxiliary switch S1, the second auxiliary switch S2 Replace diode, using synchronous rectification strategy.
The present invention has the advantages that：The present invention is on the basis of traditional non-bridge PFC changer, electric using coupling Sense replaces boost inductance, lifts boost effect, solves under the conditions of high-gain, changer works in asking of limit dutycycle Topic；Meanwhile, the present invention uses two auxiliary switches to replace diode, using synchronous rectification strategy, reduces conduction loss, carries High transducer effciency.
Brief description：
Fig. 1 is the high-gain non-bridge PFC converter topology structure chart for low-voltage, high-current occasion.
Fig. 2 is power switch tube S1、S2、S3、S4Drive waveforms figure.
Fig. 3 (a), Fig. 3 (b) are circuit shown in Fig. 1 in input ac voltage V respectivelyinFirst master power switch during positive half cycle Pipe S3Operation mode figure when turning on and off.
Fig. 4 (a), Fig. 4 (b) are circuit shown in Fig. 1 in input ac voltage V respectivelyinSecond master power switch during negative half period Pipe S4Operation mode figure when turning on and off.
Fig. 5 is the high-gain non-bridge PFC changer of further embodiment of this invention.
Specific embodiment：
With reference to embodiments and accompanying drawing the present invention is described in further detail explanation.
As shown in figure 1, the present invention is used for the high-gain non-bridge PFC changer of low-voltage, high-current occasion, including with first Winding L1, the second winding L2Coupling inductance, the first master power switch pipe S3, the second master power switch pipe S4, the first auxiliary switch Pipe S1, the second auxiliary switch S2With electric capacity Co, the first winding L of described coupling inductance1Same Name of Ends and input ac power Vin One end connect, the first winding L1Different name end respectively with the first auxiliary switch S1Source electrode and the first master power switch pipe S3 Drain electrode connect；Second winding L of coupling inductance2Same Name of Ends respectively with the first auxiliary switch S1Drain electrode and second auxiliary Switching tube S2Drain electrode connect, the second winding L2Different name end with load one end be connected；Input ac power VinThe other end Respectively with the second auxiliary switch S2Source electrode and the second master power switch pipe S4Drain electrode connect；Load the other end respectively with First master power switch pipe S3Source electrode and the second master power switch pipe S4Source electrode connect.
The present invention makes improvement on the basis of traditional non-bridge PFC changer, coupling inductance is applied to non-bridge PFC and opens up Flutter, realize the high-gain of output voltage using the boosting characteristic of coupling inductance.Described with two winding L1、L2Coupling Operationally, the energy stores of low-voltage alternating-current input are in the first winding L for inductance1, release energy the stage in coupling inductance, storage In the first winding L1Portion of energy moment transfer to the second winding L2On, and jointly to load and output capacitance CoTransmission energy. Because the present invention uses coupling inductance in the same direction, it is possible to playing the effect of lifting output voltage, and coupling inductance Introducing can reduce two master power switch pipe S3、S4With two auxiliary switch S1、S2Voltage stress.Due to input voltage Relatively low, input current is larger, so the diode in traditional non-bridge PFC changer is replaced with switching tube by the present invention, reduces it Conduction loss, improves the efficiency of changer.
It is illustrated in figure 2 power switch tube S1、S2、S3、S4Drive waveforms figure, wherein g1For switching tube S1Driving letter Number, g2For switching tube S2Drive signal, g3For switching tube S3Drive signal, g4For switching tube S4Drive signal.
As shown in Fig. 3 (a), Fig. 3 (b), as input ac power VinIn positive half cycle, the second auxiliary switch S2Close always Disconnected；First master power switch pipe S3Hourglass source electrode between bear forward voltage, leading of it can be controlled by given signal Lead to and turn off；When being operated in the positive half cycle of exchange, the first winding L of coupling inductance1, the second winding L2, the first auxiliary switch S1, the first master power switch pipe S3, the second master power switch pipe S4Collectively constitute a high-gain Boost PFC loop.When first Master power switch pipe S3When opening, the first auxiliary switch S1Turn off, electric current is through the first winding L of coupling inductance1, first main Power switch tube S3, the second master power switch pipe S4, it is the first winding L1Energy storage, the second winding L2Induced voltage, but there is no electricity Stream, output capacitance CoPower to the load；As the first master power switch pipe S3During shutoff, the first auxiliary switch S1Open-minded, electric current warp First winding L of overcoupling inductance1, the first auxiliary switch S1, the second winding L of coupling inductance2, to output capacitance CoWith negative Carry and energy, wherein the first winding L of coupling inductance are provided1Portion of energy moment transfer to the second winding L of coupling inductance2.
As shown in Fig. 4 (a), Fig. 4 (b), as input ac power VinIn negative half period, the first auxiliary switch S1Close always Disconnected；Second master power switch pipe S4Hourglass source electrode between bear forward voltage, leading of it can be controlled by given signal Lead to and turn off；When being operated in exchange negative half period, the first winding L of coupling inductance1, the second winding L2, the second auxiliary switch S2, the first master power switch pipe S3, the second master power switch pipe S4Collectively constitute a high-gain Boost PFC loop.When second Master power switch pipe S4When opening, the second auxiliary switch S2Turn off, electric current is through the first winding L of coupling inductance1, second main Power switch tube S4, the first master power switch pipe S3, it is the first winding L1Energy storage, the second winding L2Induced voltage, but there is no electricity Stream, output capacitance CoPower to the load；As the second master power switch pipe S4During shutoff, the second auxiliary switch S2Open-minded, electric current warp First winding L of overcoupling inductance1, the second auxiliary switch S2, the second winding L of coupling inductance2, to output capacitance CoWith negative Carry and energy, the first winding L of coupling inductance are provided1Portion of energy moment transfer to the second winding L of coupling inductance2.
Therefore, as input ac power VinIn positive half cycle, the second master power switch pipe S4It is in constantly on state, Second auxiliary switch S2It is in the state turning off always；As input ac power VinIn negative half period, the first master power switch Pipe S3It is in constantly on state, the first auxiliary switch S1It is in the state turning off always, that is, in input ac power Vin During positive-negative half-cycle, all there are switching frequency and the input ac power V of a brachium pontisinFrequency identical.
It is illustrated in figure 5 another embodiment of the present invention, be a kind of double two poles of high-gain for low-voltage, high-current occasion Pipe non-bridge PFC changer, including：One carries the coupling inductance of two windings, two master power switch pipes, two auxiliary switches Pipe, two diodes and an output capacitance.Identical with first embodiment, it is also adopted by coupling inductance to realize output voltage High-gain.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art For member, some improvement can also be made under the premise without departing from the principles of the invention, these improvement also should be regarded as the present invention's Protection domain.

Claims (6)

1. a kind of high-gain non-bridge PFC changer for low-voltage, high-current occasion it is characterised in that：Including with the first winding L1, the second winding L2Coupling inductance, the first master power switch pipe S3, the second master power switch pipe S4, the first auxiliary switch S1, Second auxiliary switch S2With electric capacity Co, the first winding L of described coupling inductance1Same Name of Ends and input ac power VinOne End connects, the first winding L1Different name end respectively with the first auxiliary switch S1Source electrode and the first master power switch pipe S3Leakage Pole connects；Second winding L of coupling inductance2Same Name of Ends respectively with the first auxiliary switch S1Drain electrode and the second auxiliary switch Pipe S2Drain electrode connect, the second winding L2Different name end with load one end be connected；Input ac power VinThe other end respectively With the second auxiliary switch S2Source electrode and the second master power switch pipe S4Drain electrode connect；The other end of load is respectively with first Master power switch pipe S3Source electrode and the second master power switch pipe S4Source electrode connect.
2. the high-gain non-bridge PFC changer for low-voltage, high-current occasion according to claim 1 it is characterised in that： As input ac power VinIn positive half cycle, the first master power switch pipe S3Hourglass source electrode between bear forward voltage, by giving Determine signal and control its turn-on and turn-off；When being operated in the positive half cycle of exchange, the first winding L of coupling inductance1, second around Group L2, the first auxiliary switch S1, the first master power switch pipe S3, the second master power switch pipe S4Collectively constitute a high-gain Boost PFC loop.
3. the high-gain non-bridge PFC changer for low-voltage, high-current occasion according to claim 1 it is characterised in that： As input ac power VinIn negative half period, the second master power switch pipe S4Hourglass source electrode between bear forward voltage, by giving Determine signal and control its turn-on and turn-off；When being operated in exchange negative half period, the first winding L of coupling inductance1, second around Group L2, the second auxiliary switch S2, the first master power switch pipe S3, the second master power switch pipe S4Collectively constitute a high-gain Boost PFC loop.
4. the high-gain non-bridge PFC changer for low-voltage, high-current occasion according to Claims 2 or 3, its feature exists In：As input ac power VinIn positive half cycle, the second master power switch pipe S4It is in constantly on state, the second auxiliary is opened Close pipe S2It is in the state turning off always；As input ac power VinIn negative half period, the first master power switch pipe S3It is in one The state of straight conducting, the first auxiliary switch S1It is in the state turning off always, that is, in input ac power VinDuring positive-negative half-cycle, All there are switching frequency and the input ac power V of a brachium pontisinFrequency identical.
5. the high-gain non-bridge PFC changer for low-voltage, high-current occasion according to claim 1 it is characterised in that： Described high-gain non-bridge PFC changer comprises a boosting coupling inductance, and the turn ratio is N=N2：N1, wherein N1For coupling inductance First winding L1The number of turn, N2The second winding L for coupling inductance2The number of turn.
6. the high-gain non-bridge PFC changer for low-voltage, high-current occasion according to claim 5 it is characterised in that： Described high-gain non-bridge PFC changer uses the first auxiliary switch S1, the second auxiliary switch S2Replace diode, using same Step rectification strategy.
CN201610911756.0A 2016-10-19 2016-10-19 A kind of high-gain non-bridge PFC changer for low-voltage, high-current occasion Pending CN106487249A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111416536A (en) * 2020-04-24 2020-07-14 三峡大学 Single-phase double-boosting bridgeless five-level rectifier based on bidirectional tube insertion
CN112737306A (en) * 2020-12-17 2021-04-30 上海大学 High-gain bridgeless switched capacitor power factor correction converter
CN112953265A (en) * 2021-03-18 2021-06-11 上海大学 Positive output high-gain bridgeless switched capacitor SEPIC PFC converter

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101056068A (en) * 2005-09-12 2007-10-17 快捷半导体有限公司 VRMS and rectified current sense full-bridge synchronous-rectification integrated with PFC
CN102035364A (en) * 2010-12-02 2011-04-27 成都芯源系统有限公司 Bridgeless power factor correction converter and control method thereof
CN102742132A (en) * 2011-11-29 2012-10-17 深圳市核达中远通电源技术有限公司 Bridgeless power-factor correction converter
CN102882386A (en) * 2011-07-12 2013-01-16 南京博兰得电子科技有限公司 AC/DC switching device and control method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101056068A (en) * 2005-09-12 2007-10-17 快捷半导体有限公司 VRMS and rectified current sense full-bridge synchronous-rectification integrated with PFC
CN102035364A (en) * 2010-12-02 2011-04-27 成都芯源系统有限公司 Bridgeless power factor correction converter and control method thereof
CN102882386A (en) * 2011-07-12 2013-01-16 南京博兰得电子科技有限公司 AC/DC switching device and control method thereof
CN102742132A (en) * 2011-11-29 2012-10-17 深圳市核达中远通电源技术有限公司 Bridgeless power-factor correction converter
WO2013078602A1 (en) * 2011-11-29 2013-06-06 深圳市核达中远通电源技术有限公司 Bridgeless power factor correction converter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111416536A (en) * 2020-04-24 2020-07-14 三峡大学 Single-phase double-boosting bridgeless five-level rectifier based on bidirectional tube insertion
CN111416536B (en) * 2020-04-24 2023-07-14 三峡大学 Single-phase double-boost bridgeless five-level rectifier based on bidirectional pipe insertion
CN112737306A (en) * 2020-12-17 2021-04-30 上海大学 High-gain bridgeless switched capacitor power factor correction converter
CN112953265A (en) * 2021-03-18 2021-06-11 上海大学 Positive output high-gain bridgeless switched capacitor SEPIC PFC converter

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Application publication date: 20170308