CN108923637A - A kind of non-isolated Three-phase PFC of buck and its control method - Google Patents

A kind of non-isolated Three-phase PFC of buck and its control method Download PDF

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Publication number
CN108923637A
CN108923637A CN201810892424.1A CN201810892424A CN108923637A CN 108923637 A CN108923637 A CN 108923637A CN 201810892424 A CN201810892424 A CN 201810892424A CN 108923637 A CN108923637 A CN 108923637A
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phase
bridge arm
half control
control rectification
power switch
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CN108923637B (en
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许政�
戴钱坤
孙百军
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Leihua Electronic Technology Research Institute Aviation Industry Corp of China
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Leihua Electronic Technology Research Institute Aviation Industry Corp of China
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M1/00Details of apparatus for conversion
    • H02M1/42Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208Arrangements for improving power factor of AC input
    • H02M1/4233Arrangements for improving power factor of AC input using a bridge converter comprising active switches
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M1/00Details of apparatus for conversion
    • H02M1/12Arrangements for reducing harmonics from ac input or output
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M1/00Details of apparatus for conversion
    • H02M1/42Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208Arrangements for improving power factor of AC input
    • H02M1/4216Arrangements for improving power factor of AC input operating from a three-phase input voltage
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M1/00Details of apparatus for conversion
    • H02M1/0048Circuits or arrangements for reducing losses
    • H02M1/0054Transistor switching losses
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10Technologies 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 relates to field of three-phase AC/DC conversion, in particular to the non-isolated Three-phase PFC of a kind of buck and its control method.The non-isolated Three-phase PFC of buck includes positive switch unit, half control rectification unit and energy storage afterflow unit, wherein positive switch unit includes 3 forward power switching tubes, is separately positioned in three phase lines of the phase three-wire three power supply of access;The half control rectification unit includes upper bridge arm and lower bridge arm, and upper bridge arm is made of three diodes, and lower bridge arm is composed in series respectively by three negative sense power switch tubes and three diodes.The non-isolated Three-phase PFC of buck of the invention, overcome the defect of traditional boost PFC circuit, so that the DC converter of rear class is not limited to by the performance of power device, switching loss can be reduced, also saves many power devices, and, circuit structure is simple, and control method simplifies novelty, high-efficient, it is suitable for high efficiency and high power density demand occasion, there is apparent advantage.

Description

A kind of non-isolated Three-phase PFC of buck and its control method
Technical field
The present invention relates to field of three-phase AC/DC conversion, in particular to the non-isolated Three-phase PFC of a kind of buck and Its control method.
Background technique
Since the capacity of single devices power load in recent years is increasing, be mostly using three phase supply, such as it is electronic Vehicle charging station etc., when were it not for power factor correcting will destroy very big or even serious to the power quality of power grid It will lead to the paralysis of power grid.
For a long time, for Active PFC (PFC) circuit of three-phase alternating current input, usually based on booster type, by In using Boost topology, when inputting three-phase voltage is 380VAC, output is general higher, can achieve 720V or so, or even 800V, and the power tube of conventional better performances in 650V hereinafter, occurring the SiC of slightly higher 1200V of voltage or so in recent years Etc. novel switched device, but it is with high costs.Therefore, the DC converter of rear end is confined to the finiteness of power device, to take into account Efficiency and other factors, deal with and are more troublesome.
For this purpose, be buck PFC there is an urgent need to seek both to be able to satisfy power quality and the low pfc circuit of voltage, because This is except the pfc converter in addition to continuing to use more typical boost type pfc circuit, also starting exploration buck.
Summary of the invention
The object of the present invention is to provide a kind of non-isolated Three-phase PFC of buck and its control methods, to solve At least one problem existing for existing boost PFC circuit.
The technical scheme is that:
A kind of non-isolated Three-phase PFC of buck, including positive switch unit, half control rectification unit and energy storage afterflow Unit, wherein
The forward direction switch unit includes the first forward power switching tube S1, the second forward power switching tube S2 and third Forward power switching tube S3, three forward power switching tubes are separately positioned on three phase lines of the phase three-wire three power supply of access On;
The half control rectification unit includes upper bridge arm and lower bridge arm, and the upper bridge arm is by three diode D1, D3, D5 groups At the lower bridge arm is composed in series respectively by three negative sense power switch tubes and three diodes D2, D4, D6, wherein described three Negative sense power switch tube is respectively the first negative sense power switch tube S 4, the second negative sense power switch tube S 5 and third negative sense function Rate switching tube S6, the half control rectification unit are connect by positive terminal and negative pole end with the energy storage afterflow unit.
Optionally, the energy storage afterflow unit includes sustained diode 7, the first filter inductance L1, the second filter inductance L2 It is connected by positive electrode bus with first one end filter inductance L1 with the positive terminal of filter capacitor C1, the half control rectification unit, institute The negative pole end for stating half control rectification unit is connected by negative electrode bus with second one end filter inductance L2, the both ends the filter capacitor C1 It is connect respectively with the other end of the other end of the first filter inductance L1 and the second filter inductance L2.
Optionally, the forward power switching tube and negative sense power switch tube are that metal-oxide-semiconductor or IGBT are managed.
Optionally, three negative sense power switch tube Ss 4, S5, S6 source electrode respectively with bridge under the half control rectification unit The anode of three diodes D2, D4, D6 of arm are connected, three diodes D1, D3, D5 of bridge arm on the half control rectification unit Cathode is connected, the output cathode as the half control rectification unit;In addition, three negative sense power switch tube Ss 4, S5, S6 Drain electrode is connected, as the output negative pole of the half control rectification unit, the half control rectification unit by positive terminal and negative pole end with The energy storage afterflow unit connection.
Optionally, the first forward power switching tube S1 of the positive switch unit) source electrode be connected to described half simultaneously Control the diode of the A phase lower bridge arm of the anode and half control rectification unit of the diode D1 of bridge arm in the A phase of rectification unit The cathode of D2;
It is single that the source electrode of second forward power switching tube S2 of the forward direction switch unit is connected to the half control rectification simultaneously The cathode of the diode D4 of the B phase lower bridge arm of the anode and half control rectification unit of the diode D3 of bridge arm in the B phase of member;
It is single that the source electrode of the third forward power switching tube S3 of the forward direction switch unit is connected to the half control rectification simultaneously The cathode of the diode D6 of the C phase lower bridge arm of the anode and half control rectification unit of the diode D5 of bridge arm in the C phase of member.
The present invention also provides a kind of non-isolated Three-phase PFC control methods of buck, include the following steps:
Step 1: one primitive period is divided into six sectors according to three-phase mains voltage correlation;
Step 2: carrying out amplitude detection to three-phase mains voltage signal currently entered, judge that three-phase mains voltage is being worked as Sector locating for the preceding moment and phase;
Step 3: in each sector, according to three-phase mains voltage size be respectively defined as high voltage phase, middle voltage phase and Low-voltage phase:Wherein, when the middle voltage phase voltage amplitude is timing, execution step 4;When the middle voltage phase voltage amplitude When being negative, step 5 is executed;
Step 4: forward power switching tube corresponding to the constantly on phase voltage, while it is right to the high voltage phase institute Negative sense power switch tube corresponding to the forward power switching tube answered and the low-voltage phase carries out PWM control, one in sector Directly close its excess-three power switch tube;
Step 5: negative sense power switch tube corresponding to the constantly on phase voltage, while it is right to the high voltage phase institute Negative sense power switch tube corresponding to the forward power switching tube answered and the low-voltage phase carries out PWM control, one in sector Directly close its excess-three power switch tube.
Optionally, further include before step 1:
Input and output and environmental condition are detected, judges whether input and output and environmental condition meet operating condition, is unsatisfactory for Condition continues waiting for, if meeting condition, starts to work
Invention effect:
The non-isolated Three-phase PFC of buck of the invention and its control method are from structure, function and control Advantage is as follows:
From structure, the present invention overcomes the defects of traditional boost PFC circuit, so that the DC converter of rear class is not Limited to by the performance of power device, the non-isolated pfc converter of buck proposed by the present invention also changes conventional buck formula Way of realization can reduce switching loss compared to six switch Buck type pfc circuits, and removing compared to Swiss rectifier can reduce open It is outer to close loss, also saves many power devices, therefore entire three-phase pfc circuit structure is simple, control method simplifies novelty, effect Rate is high, is suitable for high efficiency and high power density demand occasion, has apparent advantage.
Functionally, topological structure of the invention, the conducting for each circuitry phase that combination controlling method can be effectively ensured or electricity Inducing current works in continuous state, therefore has preferable PF value and THD, simultaneously as, symmetrical inductance (the first filter of setting Wave inductance L1 and the second filter inductance L2), in conjunction with filter capacitor, be conducive to the EMI for improving non-isolation type Three-phase PFC It can or obtain preferable PF value and THD.
From control, due to the simplification in structure, the reduction of power component thereby reduces the difficulty of control;From PFC From the point of view of the switch motion of function, by the driving signal for applying PWM control to any power switch and permanent high level combines, subtract The switch motion number for having lacked power switch, reduces switching loss.
Detailed description of the invention
Fig. 1 is the non-isolated Three-phase PFC circuit diagram of buck of the present invention;
Fig. 2 is six phase Division figure of voltage in the non-isolated Three-phase PFC of buck of the present invention.
Specific embodiment
To keep the purposes, technical schemes and advantages of the invention implemented clearer, below in conjunction in the embodiment of the present invention Attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class As label indicate same or similar element or element with the same or similar functions.Described embodiment is the present invention A part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people Member's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.Under Face is described in detail the embodiment of the present invention in conjunction with attached drawing.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as protecting the present invention The limitation of range.
1 to Fig. 2 the non-isolated Three-phase PFC of buck of the present invention and its control method are done with reference to the accompanying drawing into one Step is described in detail.
The present invention provides a kind of non-isolated Three-phase PFCs of buck, including positive switch unit 1, half control to rectify Unit 2 and energy storage afterflow unit 3.
Wherein, positive switch unit 1 includes the first forward power switching tube S1, the second forward power switching tube S2 and the Three forward power switching tube S3, three forward power switching tubes are separately positioned on three phase lines of the phase three-wire three power supply of access On.In the present embodiment, preferably forward power switching tube is that metal-oxide-semiconductor or IGBT are managed.
Further, half control rectification unit 2 includes upper bridge arm and lower bridge arm, and upper bridge arm is by three diode D1, D3, D5 groups At lower bridge arm is composed in series respectively by three negative sense power switch tubes and three diodes D2, D4, D6, wherein three negative sense function Rate switching tube is respectively the first negative sense power switch tube S 4, the second negative sense power switch tube S 5 and third negative sense power switch tube S6, half control rectification unit 2 are connect by positive terminal and negative pole end with energy storage afterflow unit 3.It is preferred that negative sense power switch tube is MOS Pipe or IGBT pipe.
Further, preferably energy storage afterflow unit includes sustained diode 7, the first filter inductance L1, the second filter inductance L2 It is connected by positive electrode bus with first one end filter inductance L1 with the positive terminal of filter capacitor C1, half control rectification unit 2, half control is whole The negative pole end of stream unit 2 is connected with second one end filter inductance L2 by negative electrode bus, and the both ends filter capacitor C1 are respectively with first The connection of the other end of the other end of filter inductance L1 and the second filter inductance L2.
Specifically, three negative sense power switch tube Ss 4, S5, S6 source electrode respectively with 2 lower bridge arm of half control rectification unit three The anode of a diode D2, D4, D6 are connected, and the cathode of three diodes D1, D3, D5 of bridge arm are connected on half control rectification unit 2, Output cathode as half control rectification unit 2;In addition, the drain electrode of three negative sense power switch tube Ss 4, S5, S6 is connected, as half The output negative pole of rectification unit 2 is controlled, half control rectification unit 2 is connect by positive terminal and negative pole end with energy storage afterflow unit 3.
Further, the source electrode of the first forward power switching tube S1 of positive switch unit is connected to half control rectification unit simultaneously A phase on bridge arm diode D1 anode and half control rectification unit A phase lower bridge arm diode D2 cathode.
The source electrode of second forward power switching tube S2 of positive switch unit is connected in the B phase of half control rectification unit simultaneously The cathode of the diode D4 of the B phase lower bridge arm of the anode and half control rectification unit of the diode D3 of bridge arm.
The source electrode of the third forward power switching tube S3 of positive switch unit is connected in the C phase of half control rectification unit simultaneously The cathode of the diode D6 of the C phase lower bridge arm of the anode and half control rectification unit of the diode D5 of bridge arm.
The present invention also provides a kind of non-isolated Three-phase PFC control methods of buck, include the following steps:
Step 1: one primitive period is divided into six sectors according to three-phase mains voltage correlation.
Can also include detection input and output and environmental condition in addition, before step is at the beginning, judge input and output and Whether environmental condition meets operating condition, and the condition of being unsatisfactory for continues waiting for, if meeting condition, starts to work.
Step 2: carrying out amplitude detection to three-phase mains voltage signal currently entered, judge that three-phase mains voltage is being worked as Sector locating for the preceding moment and phase.
Specifically, phaselocked loop detection is carried out to the three-phase mains voltage signal of input, it is mutual further according to three-phase mains voltage Relationship and three-phase mains voltage and 0 voltage relationship, judge phase locating for the current time of three phase mains and segment, are divided into six A sector, as shown in Figure 2.
Step 3: in each sector (three-phase mains voltage size relation is with uniformity), according to three-phase mains voltage Size is respectively defined as high voltage phase, middle voltage phase and low-voltage phase:Wherein, voltage phase voltage amplitude is timing in the middle, is executed Step 4;When voltage phase voltage amplitude is negative in the middle, step 5 is executed.
Step 4: forward power switching tube corresponding to the constantly on phase voltage, while to corresponding to high voltage phase Negative sense power switch tube corresponding to forward power switching tube and low-voltage phase carries out PWM control, closes it always in sector Excess-three power switch tube.
Step 5: negative sense power switch tube corresponding to the constantly on phase voltage, while to corresponding to high voltage phase Negative sense power switch tube corresponding to forward power switching tube and low-voltage phase carries out PWM control, closes it always in sector Excess-three power switch tube.
In conclusion the non-isolated Three-phase PFC of buck of the invention from structure, function and control on advantage It is as follows:
From structure, the present invention overcomes the defects of traditional boost PFC circuit, so that the DC converter of rear class is not Limited to by the performance of power device, the non-isolated pfc converter of buck proposed by the present invention also changes conventional buck formula Way of realization can reduce switching loss compared to six switch Buck type pfc circuits, and removing compared to Swiss rectifier can reduce open It is outer to close loss, also saves many power devices, therefore entire three-phase pfc circuit structure is simple, control method simplifies novelty, effect Rate is high, is suitable for high efficiency and high power density demand occasion, has apparent advantage.
Functionally, topological structure of the invention, the conducting for each circuitry phase that combination controlling method can be effectively ensured or electricity Inducing current works in continuous state, therefore has preferable PF value and THD, simultaneously as, symmetrical inductance (the first filter of setting Wave inductance L1 and the second filter inductance L2), in conjunction with filter capacitor, be conducive to the EMI for improving non-isolation type Three-phase PFC It can or obtain preferable PF value and THD.
From control, due to the simplification in structure, the reduction of power component thereby reduces the difficulty of control;From PFC From the point of view of the switch motion of function, by the driving signal for applying PWM control to any power switch and permanent high level combines, subtract The switch motion number for having lacked power switch, reduces switching loss.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims It is quasi-.

Claims (7)

1. a kind of non-isolated Three-phase PFC of buck, which is characterized in that single including positive switch unit (1), half control rectification First (2) and energy storage afterflow unit (3), wherein
It is described forward direction switch unit (1) include the first forward power switching tube (S1), the second forward power switching tube (S2) and Third forward power switching tube (S3), three forward power switching tubes are separately positioned on the three of the phase three-wire three power supply of access In root phase line;
The half control rectification unit (2) includes upper bridge arm and lower bridge arm, and the upper bridge arm is by three diode (D1, D3, D5) groups At the lower bridge arm is composed in series respectively by three negative sense power switch tubes and three diodes (D2, D4, D6), wherein described Three negative sense power switch tubes are respectively the first negative sense power switch tube (S4), the second negative sense power switch tube (S5) and third Negative sense power switch tube (S6), the half control rectification unit are connected by positive terminal and negative pole end and the energy storage afterflow unit (3) It connects.
2. the non-isolated Three-phase PFC of buck according to claim 1, which is characterized in that three negative sense function The source electrode of rate switching tube (S4, S5, S6) three diodes (D2, D4, D6) with half control rectification unit (2) lower bridge arm respectively Anode be connected, on the half control rectification unit (2) three diodes (D1, D3, D5) of bridge arm cathode be connected, as described The output cathode of half control rectification unit (2);
In addition, the drain electrode of three negative sense power switch tubes (S4, S5, S6) is connected, as the half control rectification unit (2) Output negative pole, the half control rectification unit (2) are connect by positive terminal and negative pole end with the energy storage afterflow unit (3).
3. the non-isolated Three-phase PFC of buck according to claim 2, which is characterized in that the positive switch is single The source electrode of the first forward power switching tube (S1) of first (1) is connected to bridge arm in the A phase of the half control rectification unit (2) simultaneously The cathode of the diode (D2) of the A phase lower bridge arm of the anode of diode (D1) and the half control rectification unit (2);
It is single that the source electrode of second forward power switching tube (S2) of the forward direction switch unit (1) is connected to the half control rectification simultaneously The diode of the B phase lower bridge arm of the anode and half control rectification unit (2) of the diode (D3) of bridge arm in the B phase of first (2) (D4) cathode;
It is single that the source electrode of the third forward power switching tube (S3) of the forward direction switch unit (1) is connected to the half control rectification simultaneously The diode of the C phase lower bridge arm of the anode and half control rectification unit (2) of the diode (D5) of bridge arm in the C phase of first (2) (D6) cathode.
4. the non-isolated Three-phase PFC of buck according to claim 1, which is characterized in that the energy storage afterflow list First (3) include freewheeling diode (D7), the first filter inductance (L1), the second filter inductance (L2) and filter capacitor (C1), described The positive terminal of half control rectification unit (2) is connected by positive electrode bus with the one end the first filter inductance (L1), and the half control rectification is single The negative pole end of first (2) is connected by negative electrode bus with the one end the second filter inductance (L2), the filter capacitor both ends (C1) difference It is connect with the other end of the other end of first filter inductance (L1) and second filter inductance (L2).
5. the non-isolated Three-phase PFC of buck according to claim 1-4, which is characterized in that it is described just It is that metal-oxide-semiconductor or IGBT are managed to power switch tube and negative sense power switch tube.
6. a kind of non-isolated Three-phase PFC control method of buck, which is characterized in that include the following steps:
Step 1: one primitive period is divided into six sectors according to three-phase mains voltage correlation;
Step 2: carrying out amplitude detection to three-phase mains voltage signal currently entered, judge three-phase mains voltage when current Carve locating sector and phase;
Step 3: being respectively defined as high voltage phase, middle voltage phase and low electricity according to three-phase mains voltage size in each sector Press phase:Wherein, when the middle voltage phase voltage amplitude is timing, execution step 4;When the middle voltage phase voltage amplitude is negative When, execute step 5;
Step 4: forward power switching tube corresponding to the constantly on phase voltage, while to corresponding to the high voltage phase Negative sense power switch tube corresponding to forward power switching tube and the low-voltage phase carries out PWM control, closes always in sector Close its excess-three power switch tube;
Step 5: negative sense power switch tube corresponding to the constantly on phase voltage, while to corresponding to the high voltage phase Negative sense power switch tube corresponding to forward power switching tube and the low-voltage phase carries out PWM control, closes always in sector Close its excess-three power switch tube.
7. the non-isolated Three-phase PFC control method of buck according to claim 6, which is characterized in that in step Further include before one:
Input and output and environmental condition are detected, judges whether input and output and environmental condition meet operating condition, is unsatisfactory for condition It continues waiting for, if meeting condition, starts to work.
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Publication number Priority date Publication date Assignee Title
CN109067219A (en) * 2018-11-06 2018-12-21 深圳市高益智能电气有限公司 A kind of three-phase AC/DC conversion device and its control method
CN109067219B (en) * 2018-11-06 2024-05-10 南京熊猫电子股份有限公司 Three-phase AC/DC converter and control method thereof
CN111800060A (en) * 2020-08-04 2020-10-20 南昌航空大学 Motor driving circuit containing PFC and control method thereof
CN111800060B (en) * 2020-08-04 2024-05-10 南昌航空大学 PFC-containing motor driving circuit and control method thereof
CN113556050A (en) * 2021-06-25 2021-10-26 南京航空航天大学 Three-phase rectifier converter and control method
CN113556050B (en) * 2021-06-25 2023-12-05 南京航空航天大学 Three-phase rectifying converter and control method

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