CN110289776A - The double Boost non-bridge PFC converters of single inductance - Google Patents
The double Boost non-bridge PFC converters of single inductance Download PDFInfo
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- CN110289776A CN110289776A CN201910695815.9A CN201910695815A CN110289776A CN 110289776 A CN110289776 A CN 110289776A CN 201910695815 A CN201910695815 A CN 201910695815A CN 110289776 A CN110289776 A CN 110289776A
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- 238000010586 diagram Methods 0.000 description 9
- 238000012937 correction Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 230000009466 transformation Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 4
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- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- 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
- H02M1/4233—Arrangements for improving power factor of AC input using a bridge converter comprising active switches
-
- 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
-
- 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)
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Abstract
The present invention provides a kind of double Boost non-bridge PFC converters of single inductance, comprising: input ac power, first diode, the second diode, third diode, the 4th diode, first switch tube, second switch, storage capacitor, load resistance and boost inductance.The first end of boost inductance is connected with the anode of the anode of third diode and the 4th diode respectively；The second end of boost inductance is connected with the cathode of the source electrode of first switch tube, the source electrode of second switch and storage capacitor respectively；The source electrode of the second end of boost inductance, the source electrode of first switch tube and second switch is altogether.Converter provided by the invention shares a boost inductance in the positive-negative half-cycle of input ac power work, and input current all flows through boost inductance, and an only circuit at any time.Converter is that no bridge structure using single inductor design improves devices use rate, reduces power device volume accounting, improves the power density of power supply.
Description
Technical field
The present invention relates to AC/DC technical field, in particular to a kind of double Boost non-bridge PFC converters of single inductance.
Background technique
With fast-developing and in all trades and professions the extensive use of power electronic technique, the electronic power switch of power grid is accessed
Power-supply device becomes the main source to power grid Injection Current harmonic wave.The inhibition of harmonic wave has caused the pass of domestic and international expert
Note, and linked groups have formulated the relevant criterion of limitation Harmonious Waves in Power Systems both at home and abroad.PFC (Power
Factor Correction, PFC) as a kind of effective ways for inhibiting harmonic current and increase power factor, have become
The indispensable important link of high-power electronic device.Traditional circuit of power factor correction is with active power factor correction of boosting
The characteristics of converter (Boost APFC) is representative, safety and stability simple with structure is used widely.However, due to preceding
Grade rectifier bridge there are more conduction devices, lead to excessive energy loss, especially in low-pressure high-power, diode it is logical
State loss is more considerable, this limits the promotion of converter overall efficiency significantly.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of single double Boost non-bridge PFC converters of inductance, the converter
For no bridge structure, and using single inductor design, devices use rate is improved, power device volume accounting is reduced, improves electricity
The power density in source.
To achieve the above object, the embodiment of the present invention provides the following technical solutions:
A kind of double Boost non-bridge PFC converters of list inductance, comprising:
Input ac power Vac, first diode D1, the second diode D2, third diode D3, the 4th diode D4,
One switching tube S1, second switch S2, storage capacitor C1, load resistance R and boost inductance L；
Wherein:
The first end of the boost inductance L respectively with the third diode D3Anode and the 4th diode D4's
Anode is connected；
The third diode D3Cathode and the input ac power VacFirst end be connected；
The 4th diode D4Cathode and the input ac power VacSecond end be connected；
The second end of the boost inductance L respectively with the first switch tube S1Source electrode, the second switch S2Source
Pole and the storage capacitor C1Cathode be connected；
The first switch tube S1Drain electrode and the input ac power VacSecond end be connected；
The second switch S2Drain electrode and the input ac power VacFirst end be connected；
The first diode D1Anode and the first switch tube S1Drain electrode be connected, the first diode D1
Cathode and the storage capacitor C1Anode be connected；
The second diode D2Anode and the second switch S2Drain electrode be connected, the second diode D2
Cathode and the storage capacitor C1Anode be connected；
The load resistance R and storage capacitor C1It is in parallel；
The second end of the boost inductance L, the first switch tube S1Source electrode and the second switch S2Source electrode it is total
Ground.
The double Boost non-bridge PFC converters of above-mentioned single inductance, optionally, the first switch tube S1It is opened with described second
Close pipe S2It is the insulated gate bipolar transistor IGBT without anti-paralleled diode.
The double Boost non-bridge PFC converters of above-mentioned single inductance, optionally, the first diode D1With the described 2nd 2
Pole pipe D2It is fast recovery diode.
A kind of single double Boost non-bridge PFC converters of inductance provided based on the embodiments of the present invention, comprising: input is handed over
Galvanic electricity source Vac, first diode D1, the second diode D2, third diode D3, the 4th diode D4, first switch tube S1, second
Switching tube S2, storage capacitor C1, load resistance R and boost inductance L；Wherein: the first end of the boost inductance L respectively with it is described
Third diode D3Anode and the 4th diode D4Anode be connected；The third diode D3Cathode with it is described
Input ac power VacFirst end be connected；The 4th diode D4Cathode and the input ac power VacSecond
End is connected；The second end of the boost inductance L respectively with the first switch tube S1Source electrode, the second switch S2's
Source electrode and the storage capacitor C1Cathode be connected；The first switch tube S1Drain electrode and the input ac power Vac's
Second end is connected；The second switch S2Drain electrode and the input ac power VacFirst end be connected；Described
One diode D1Anode and the first switch tube S1Drain electrode be connected, the first diode D1Cathode and the storage
It can capacitor C1Anode be connected；The second diode D2Anode and the second switch S2Drain electrode be connected, it is described
Second diode D2Cathode and the storage capacitor C1Anode be connected；The load resistance R and storage capacitor C1And
Connection；The second end of the boost inductance L, the first switch tube S1Source electrode and the second switch S2Source electrode altogether.
The double Boost non-bridge PFC converters of list inductance provided by the invention, in the positive-negative half-cycle of input ac power work,
A boost inductance is shared, input current all flows through boost inductance, and an only circuit at any time.Converter is no bridge
Structure improves devices use rate using single inductor design, reduces power device volume accounting, improves the power of power supply
Density.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of structural schematic diagram of single double Boost non-bridge PFC converters of inductance provided in an embodiment of the present invention；
Fig. 2 is a kind of alternating current input just half of single double Boost non-bridge PFC converters of inductance provided in an embodiment of the present invention
All operational modal analysis schematic diagrames；
Fig. 3 is a kind of another alternating current input of single double Boost non-bridge PFC converters of inductance provided in an embodiment of the present invention
Positive half cycle operational modal analysis schematic diagram；
Fig. 4 is a kind of alternating current input negative half of single double Boost non-bridge PFC converters of inductance provided in an embodiment of the present invention
All operational modal analysis schematic diagrames；
Fig. 5 is a kind of another alternating current input of single double Boost non-bridge PFC converters of inductance provided in an embodiment of the present invention
Negative half period operational modal analysis schematic diagram；
Fig. 6 is a kind of structural schematic diagram of single double Boost non-bridge PFC transformation systems of inductance provided in an embodiment of the present invention；
Fig. 7 is the input voltage pole in a kind of single double Boost non-bridge PFC transformation systems of inductance provided in an embodiment of the present invention
The circuit structure diagram of property detection circuit and logic control circuit；
Fig. 8 is a kind of key signal waveform of single double Boost non-bridge PFC transformation systems of inductance provided in an embodiment of the present invention
Figure；
Fig. 9 is a kind of output voltage waveforms of single double Boost non-bridge PFC transformation systems of inductance provided in an embodiment of the present invention
Figure；
Figure 10 be the double Boost non-bridge PFC transformation systems of a kind of single inductance provided in an embodiment of the present invention input voltage and
The waveform diagram of input current.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In this application, the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion,
So that the process, method, article or equipment for including a series of elements not only includes those elements, but also including not having
The other element being expressly recited, or further include for elements inherent to such a process, method, article, or device.Do not having
There is the element limited in the case where more limiting by sentence "including a ...", it is not excluded that in the mistake including the element
There is also other identical elements in journey, method, article or equipment.
The embodiment of the invention provides a kind of single double Boost non-bridge PFC converters of inductance, structural schematic diagram such as Fig. 1 institutes
Show, comprising: input ac power Vac, first diode D1, the second diode D2, third diode D3, the 4th diode D4,
One switching tube S1, second switch S2, storage capacitor C1, load resistance R and boost inductance L；
Wherein:
The first end of the boost inductance L respectively with the third diode D3Anode and the 4th diode D4's
Anode is connected；
The third diode D3Cathode and the input ac power VacFirst end be connected；
The 4th diode D4Cathode and the input ac power VacSecond end be connected；
The second end of the boost inductance L respectively with the first switch tube S1Source electrode, the second switch S2Source
Pole and the storage capacitor C1Cathode be connected；
The first switch tube S1Drain electrode and the input ac power VacSecond end be connected；
The second switch S2Drain electrode and the input ac power VacFirst end be connected；
The first diode D1Anode and the first switch tube S1Drain electrode be connected, the first diode D1
Cathode and the storage capacitor C1Anode be connected；
The second diode D2Anode and the second switch S2Drain electrode be connected, the second diode D2
Cathode and the storage capacitor C1Anode be connected；
The load resistance R and storage capacitor C1It is in parallel；
The second end of the boost inductance L, the first switch tube S1Source electrode and the second switch S2Source electrode it is total
Ground.
Boost circuit (boost converter or step-up converter) is that a kind of common switch is straight
Booster circuit is flowed, it is controlled inductance storage by switching tube turn-on and turn-off and released energy, to make output voltage than defeated
Enter voltage height.
In a kind of single double Boost non-bridge PFC converters of inductance provided by the invention, comprising: input ac power Vac, first
Switching tube S1, second switch S2, first diode D1, the second diode D2, boost inductance L, third diode D3, the four or two pole
Pipe D4, storage capacitor C1With load resistance R.By each electronic device in converter provided by the invention documented in Fig. 1 it
Between connection relationship, can explicitly obtain, the specific connection circuit of converter provided by the invention, using no bridge circuit knot
Structure, and single inductance is used, in input AC electricity positive-negative half-cycle, an inductance can be shared, single loop flow direction is formed, solves
Two induction structures, the inconsistent problem of caused parameter are used in conventional transducers, while single current loop makes
Current detection circuit is more simple, improves devices use rate, reduces power device volume accounting, improves the power of power supply
Density reduces costs and improves the power density of power supply while improving transducer effciency.
In the double Boost non-bridge PFC converters of list inductance provided in an embodiment of the present invention, first switch tube S1And second switch
Pipe S2It is the IGBT without anti-paralleled diode.
In the double Boost non-bridge PFC converters of list inductance provided in an embodiment of the present invention, first diode D1With the two or two pole
Pipe D2It is fast recovery diode.
In converter provided in an embodiment of the present invention, in the positive-negative half-cycle of input ac power work, a boosting is shared
Inductance L, input current all flow through boost inductance L, and an only circuit at any time.
In the double Boost non-bridge PFC converters of list inductance provided in an embodiment of the present invention, as input ac power VacWork exists
When positive half cycle, first switch tube S1With third diode D3Conducting, second switch S2Shutdown, first diode D1With the two or two
Pole pipe D2Reverse bias, electric current flow through first switch tube S1, boost inductance L and third diode D3, storage capacitor C1Electric discharge is negative
Carry the energy needed for resistance R is provided；As first switch tube S1Shutdown, second switch S2Shutdown, electric current flow through first diode
D1, load resistance R, boost inductance L；As input ac power VacWork is in negative half period, second switch S2With the four or two pole
Pipe D4Conducting, first switch tube S1Shutdown, first diode D1With the second diode D2Reverse bias, electric current flow through second switch
Pipe S2, boost inductance L and the 4th diode D4, storage capacitor C1Electric discharge provides required energy for load resistance R；It opens when second
Close pipe S2Shutdown, first switch tube S1Shutdown, electric current flow through the second diode D2, load resistance R, boost inductance L.
In scheme provided in an embodiment of the present invention, for the first time by a kind of double Boost non-bridge PFC converter applications of single inductance in
AC/DC converts field, and in particular to using single inductance and without the IGBT of anti-paralleled diode, be based on critical current mode
Continuous mode (BCM) realizes Bridgeless power factor correction (Power Factor Correction, PFC).
A kind of single double Boost non-bridge PFC converters of inductance provided in an embodiment of the present invention, are used without anti-paralleled diode
IGBT, ensure that the one-way of electric current, at any time, inductive current all passes through earth-return, only needs current sample all the way
Circuit can reach control and require, and simplify system design.While retaining non-bridge PFC advantage, two inductance, which are closed two, is
One, devices use rate is improved, power device volume accounting is substantially reduced and is also solved to improve the power density of power supply
The inconsistent problem of traditional two inductor design parameters of having determined.Simultaneously as two switching tubes are altogether, driving circuit is without outstanding
It is floating, have the characteristics that simple and reliable.
The double Boost non-bridge PFC converters of list inductance provided in an embodiment of the present invention, are single inductance non-bridge PFC converter, only
An inductance is needed, and inductance L is in earth-return, connects S on the right side of inductance1And S2, S1And S2For different from traditional without instead simultaneously
The IGBT switching device of union II pole pipe realizes one-way conduction function.D1And D2For fast recovery diode, D3And D4For common two pole
Pipe provides high frequency and power frequency continued flow channel respectively.For the positive-negative half-cycle of alternating current input, which be can be equivalent to commonly
Boost pfc circuit, compared with conventional Boost circuit, inductance is placed on power supply low-pressure side by being a difference in that for the circuit.
The main circuit work of converter provided in an embodiment of the present invention can be divided into two stages, and each stage, there are two types of work
Mode:
(1) positive half cycle is inputted in alternating current, which can be divided into two operation modes, and Fig. 2 shows alternating current inputs
During positive half cycle operational modal analysis, S1Open-minded, inductance stores the process of energy；
During Fig. 3 shows alternating current input positive half cycle operational modal analysis, S1Shutdown, the mistake that inductance releases energy
Journey；
S1When opening, electric current passes through S1And D3Inductance L energy storage is given, is had:
S1When shutdown, electric current passes through D1Flow direction load, inductance and power supply series boosting give load energy supply, and inductive energy storage reduces,
Have:
Joint type (1) and formula (2), can obtain:
In formula, uin (t) is the input voltage changed with sinusoidal rule, in order to keep output voltage stabilization, in each switch
D (t) is also variation in period, and because 1-D (t) is less than 1, converter realizes boosting inverter.
(2) negative half period is inputted in alternating current, which can also be divided into two operation modes, and it is defeated that Fig. 4 shows alternating current
During entering negative half period operational modal analysis, S2It is open-minded, the process of inductance storage energy；
During Fig. 5 shows alternating current input negative half period operational modal analysis, S2Shutdown, the mistake that inductance releases energy
Journey；
S2When opening, electric current passes through S2And D4Give inductance L energy storage；S2When shutdown, electric current passes through S2Flow direction load, inductance and electricity
Source gives load to energize together, and inductive energy storage reduces.
Fig. 6 shows a kind of single double Boost non-bridge PFC changer systems of inductance provided in an embodiment of the present invention, in Fig. 1 institute
On the basis of showing converter, increase control section, power section of the converter as the system, wherein control section include:
Input voltage measurement unit, inductive current detection unit, output voltage detection unit, voltage PI adjust unit, multiplier unit,
The parts such as logic judgment unit and driving signal unit.The specific implementation process is as follows: it is produced in traditional single phase Boost pfc converter
In conjunction with input voltage polarity detection circuit and logic control circuit on the basis of raw driving signal, as shown in Figure 7.The circuit pair
The input voltage period is judged, is determined and is selected corresponding switching tube work in each half period.Alternating current of the Fig. 7 from power grid
With R1、R2、R3And R4Parallel connection, midpoint and amplifier are altogether.Positive half cycle is inputted in exchange, amplifier homophase input terminal potential is positive, reversely
End input terminal potential is negative, and amplifier exports high level.Conversely, inputting negative half period in exchange, amplifier exports low level.It is transporting simultaneously
Input terminal parallel connection bi-directional voltage stabilizing diode is put, plays the role of protecting amplifier in circuit abnormal.System is taken in electric current
The control mode of ring and outer voltage, triggered device generate PWM drive signal, and each key signal waveform is as shown in Figure 8.
The theoretical validation of embodiment of the present invention is to build simulation model on PSIM emulation platform and preferably imitated
True result.Fig. 9 gives output voltage waveforms, and Figure 10 gives input voltage and input current waveform.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (3)
1. a kind of double Boost non-bridge PFC converters of list inductance characterized by comprising
Input ac power Vac, first diode D1, the second diode D2, third diode D3, the 4th diode D4, first open
Close pipe S1, second switch S2, storage capacitor C1, load resistance R and boost inductance L；
Wherein:
The first end of the boost inductance L respectively with the third diode D3Anode and the 4th diode D4Anode
It is connected；
The third diode D3Cathode and the input ac power VacFirst end be connected；
The 4th diode D4Cathode and the input ac power VacSecond end be connected；
The second end of the boost inductance L respectively with the first switch tube S1Source electrode, the second switch S2Source electrode and
The storage capacitor C1Cathode be connected；
The first switch tube S1Drain electrode and the input ac power VacSecond end be connected；
The second switch S2Drain electrode and the input ac power VacFirst end be connected；
The first diode D1Anode and the first switch tube S1Drain electrode be connected, the first diode D1Yin
Pole and the storage capacitor C1Anode be connected；
The second diode D2Anode and the second switch S2Drain electrode be connected, the second diode D2Yin
Pole and the storage capacitor C1Anode be connected；
The load resistance R and storage capacitor C1It is in parallel；
The second end of the boost inductance L, the first switch tube S1Source electrode and the second switch S2Source electrode altogether.
2. the double Boost non-bridge PFC converters of list inductance according to claim 1, which is characterized in that the first switch tube
S1With the second switch S2It is the insulated gate bipolar transistor IGBT without anti-paralleled diode.
3. the double Boost non-bridge PFC converters of list inductance according to claim 1, which is characterized in that the first diode
D1With the second diode D2It is fast recovery diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695815.9A CN110289776B (en) | 2019-07-30 | Single-inductor double-Boost bridgeless PFC converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695815.9A CN110289776B (en) | 2019-07-30 | Single-inductor double-Boost bridgeless PFC converter |
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| CN110289776A true CN110289776A (en) | 2019-09-27 |
| CN110289776B CN110289776B (en) | 2024-05-14 |
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| CN111342684A (en) * | 2020-04-17 | 2020-06-26 | 广东工业大学 | Single-phase three-level Buck PFC rectifier and control method thereof |
| CN112003467A (en) * | 2020-08-17 | 2020-11-27 | 上海大学 | Three switching tube bridgeless Cuk power factor correction converter |
| CN112072907A (en) * | 2020-08-05 | 2020-12-11 | 吉林大学 | Bridgeless PFC circuit of currentless sensor |
| TWI770771B (en) * | 2020-12-23 | 2022-07-11 | 大陸商台達電子企業管理（上海）有限公司 | Power factor correction converter and control method thereof |
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| CN111342684A (en) * | 2020-04-17 | 2020-06-26 | 广东工业大学 | Single-phase three-level Buck PFC rectifier and control method thereof |
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| CN112003467B (en) * | 2020-08-17 | 2024-01-16 | 上海大学 | Three-switching tube bridgeless Cuk power factor correction converter |
| TWI770771B (en) * | 2020-12-23 | 2022-07-11 | 大陸商台達電子企業管理（上海）有限公司 | Power factor correction converter and control method thereof |
| US11621631B2 (en) | 2020-12-23 | 2023-04-04 | Delta Electronics (Shanghai) Co., Ltd. | Power factor correction converter and control method thereof |
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