CN109039067B - Voltage-multiplying type three-winding coupling inductance high-gain direct current converter - Google Patents

Voltage-multiplying type three-winding coupling inductance high-gain direct current converter Download PDF

Info

Publication number
CN109039067B
CN109039067B CN201811114747.4A CN201811114747A CN109039067B CN 109039067 B CN109039067 B CN 109039067B CN 201811114747 A CN201811114747 A CN 201811114747A CN 109039067 B CN109039067 B CN 109039067B
Authority
CN
China
Prior art keywords
winding
voltage
diode
power switch
coupled inductor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201811114747.4A
Other languages
Chinese (zh)
Other versions
CN109039067A (en
Inventor
刘洪臣
纪玉亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin Institute of Technology
Original Assignee
Harbin Institute of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harbin Institute of Technology filed Critical Harbin Institute of Technology
Priority to CN201811114747.4A priority Critical patent/CN109039067B/en
Publication of CN109039067A publication Critical patent/CN109039067A/en
Application granted granted Critical
Publication of CN109039067B publication Critical patent/CN109039067B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • 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
    • 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
    • H02M1/0064—Magnetic structures combining different functions, e.g. storage, filtering or transformation

Landscapes

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

Abstract

A voltage-multiplying three-winding coupling inductance high-gain direct current converter relates to the technical field of power electronic converters. The invention aims to solve the problem that the voltage gain is realized by adopting the boost converter in the prior art, but the actual gain of the boost converter is not always increased along with the increase of the duty ratioThe boost capability is very limited, and the method is not suitable for the situation of high-gain direct current power conversion. Three-winding coupled inductor winding for power switch tube S1When conducting, the DC voltage source V is connectedinThe input energy is stored and amplified through a voltage doubling structure; and also for power switch tubes S1When the power is turned off, the power switch tube S is used1The parasitic capacitance absorbs the leakage inductance energy to make the power switch tube S1The voltage at two ends is higher than that of the output capacitor CoTurn on the output diode DoPassing the amplified energy through an output diode DoIs a load R and an output capacitor CoAnd (5) supplying power. It is used to obtain a high gain voltage.

Description

Voltage-multiplying type three-winding coupling inductance high-gain direct current converter
Technical Field
The invention relates to a three-level high-gain direct current converter, and belongs to the technical field of power electronic converters.
Background
The boost converter is widely applied to a pre-stage converter of a distributed power system to realize boost or power factor correction. The traditional Boost converter circuit topology is a Boost circuit, theoretically, the voltage gain of the Boost circuit increases along with the increase of the duty ratio, however, the actual gain of the Boost circuit is not always increased along with the increase of the duty ratio in consideration of the parasitic equivalent series impedance in the actual circuit, so that the Boost capability of the Boost converter circuit is very limited, and the Boost converter circuit topology is not suitable for the high-gain direct-current power conversion occasion.
Disclosure of Invention
The invention aims to solve the problems that the voltage gain is realized by adopting a boost converter in the prior art, but the actual gain of the boost converter is not always increased along with the increase of the duty ratio, the boost capability is very limited, and the boost converter is not suitable for the occasion of high-gain direct-current power conversion. A voltage-multiplying three-winding coupled inductor high-gain DC converter is provided.
A voltage-multiplying three-winding coupling inductance high-gain DC converter comprises a three-winding coupling inductance winding, a voltage-multiplying structure and a power switch tube S1And an output diode Do，
Three-winding coupled inductor winding for power switch tube S1When conducting, the DC voltage source V is connectedinThe input energy is stored and amplified through a voltage doubling structure;
and also for power switch tubes S1When the power is turned off, the power switch tube S is used1Parasitic capacitance absorption ofLeakage inductance energy to make the power switch tube S1The voltage at two ends is higher than that of the output capacitor CoTurn on the output diode DoPassing the amplified energy through an output diode DoIs a load R and an output capacitor CoAnd (5) supplying power.
The invention has the beneficial effects that:
the power switch tube is conducted, and the direct current voltage passes through the diode D1For single inductor L1Charging, direct voltage passing through diode D2Coupling three windings with an inductive winding N1And N2Charging, due to the magnetic induction principle, winding N1And N3Through diode D1Capacitor C1Charging at the power switch tube S1When the power is turned off, the power switch tube S is used1The parasitic capacitance absorbs the leakage inductance energy to make the power switch tube S1The voltage at two ends is higher than that of the output capacitor CoTurn on the output diode DoMake the inductance L1And a capacitor C1Is a load R and an output capacitor CoAnd (5) supplying power.
The structure of the application can obtain high voltage gain, and when the high voltage gain is obtained, continuous input current and common ground performance are achieved.
Drawings
Fig. 1 is a voltage-multiplying three-winding coupled inductor high-gain dc converter according to the second embodiment;
FIG. 2 is a main waveform diagram of a voltage-multiplying three-winding coupled inductor high-gain DC converter;
FIG. 3(a) is an equivalent circuit diagram of a voltage-multiplying three-winding coupled inductor high-gain DC converter switch mode 1, LMIs a magnetizing inductance, Lk1Is a winding N1Is less than the leakage inductance ofk2Is a winding N2Is less than the leakage inductance ofk3Is a winding N3The turn ratio of the three-winding coupling inductor is N1:N2:N3；
Fig. 3(b) is an equivalent circuit diagram of a voltage-multiplying three-winding coupled inductor high-gain dc converter switch mode 2;
fig. 3(c) is an equivalent circuit diagram of a voltage-multiplying three-winding coupled inductor high-gain dc converter switch mode 3;
fig. 3(d) is an equivalent circuit diagram of a voltage-multiplying three-winding coupled inductor high-gain dc converter switch mode 4;
FIG. 4 shows the input voltage Vin80V, output voltage VoExperimental waveform at 400V;
fig. 5 shows the relationship between leakage inductance and gain of a three-winding coupled inductor.
Detailed Description
The first embodiment is as follows: the voltage-multiplying three-winding coupled inductor high-gain direct-current converter comprises a three-winding coupled inductor winding, a voltage-multiplying structure and a power switch tube S1And an output diode Do，
Three-winding coupled inductor winding for power switch tube S1When conducting, the DC voltage source V is connectedinThe input energy is stored and amplified through a voltage doubling structure;
and also for power switch tubes S1When the power is turned off, the power switch tube S is used1The parasitic capacitance absorbs the leakage inductance energy to make the power switch tube S1The voltage at two ends is higher than that of the output capacitor CoTurn on the output diode DoPassing the amplified energy through an output diode DoIs a load R and an output capacitor CoAnd (5) supplying power.
The second embodiment is as follows: referring to fig. 1, this embodiment is described in detail, and further describes a voltage-multiplying three-winding coupled inductor high-gain dc converter described in the first embodiment, in this embodiment, it further includes an inductor L1，
DC voltage source VinBy means of a voltage doubling arrangement for the inductor L1Charging at the power switch tube S1When turned off, the inductance L1Is a load R and an output capacitor CoAnd (5) supplying power.
The third concrete implementation mode: the present embodiment will be described in detail with reference to fig. 1, and the present embodiment is a voltage-doubling type three-winding coupled circuit according to one or two of the above embodimentsTo further illustrate the high-gain dc converter, in this embodiment, the three-winding coupled inductor winding includes a coupled inductor winding N1Coupled inductor winding N2And a coupled inductor winding N3，
The voltage doubling structure comprises a diode D1Diode D2And a capacitor C1，
DC voltage source VinThe positive electrode is connected with an inductor L simultaneously1And a diode D2Positive electrode of (1), inductor L1The other end of the capacitor C is simultaneously connected with a capacitor C1And a diode D1Anode of (2), diode D1Negative pole of the power switch tube S1Of the power switch tube S1Source electrodes of the two-stage transistor are simultaneously connected with a direct current voltage source VinNegative electrode, output capacitor CoOne terminal of (1) and one terminal of a load R, a capacitor C1The other end of the first and second coils is connected with a coupling inductance winding N3Primary side of the coupled inductor winding N3The secondary side of the transformer is simultaneously connected with a coupling inductance winding N1Primary side and coupled inductor winding N2Primary side of the coupled inductor winding N2Secondary side of the diode D2The anode of (a) is provided,
coupled inductor winding N1Secondary side of the diode is connected with an output diode DoAnode of (2), diode DoThe negative electrode of the capacitor is simultaneously connected with an output capacitor CoAnd the other end of the load R.
The invention relates to a control signal V of a voltage-multiplying three-winding coupling inductance high-gain direct current convertergsSingle inductive current iL1Three-winding coupled inductor winding current iN1、iN2、iN3Diode D1Current i ofD1Diode D2Current i ofD2Output diode DoCurrent i ofDoT in FIG. 2sRepresenting a time period. Power switch S1Current i ofsThe working process of the waveform is divided into 4 switching modes, namely a switching mode 1 to a switching mode 4, as shown in fig. 2, and the specific description is as follows:
switching mode 1, corresponding to [ t ] in FIG. 21,t2]: equivalent circuitAs shown in fig. 3(a), at this stage, the power switch is turned on and the dc voltage passes through the diode D1For single inductor L1Charging, direct voltage passing through diode D2Coupling three windings with an inductive winding N1And N2Charging, due to the magnetic induction principle, winding N1And N3Through diode D1Capacitor C1Charging, modality 1 ends.
Switching mode 2, corresponding to [ t ] in FIG. 22,t3]: the equivalent circuit is shown in fig. 3(b), at this stage, the power switch tube is turned off, the parasitic capacitance of the switch absorbs the leakage inductance energy, and the voltage at two ends of the instantaneous switch is higher than the output capacitance CoVoltage across, output diode DoAnd conducting, and ending the mode when the leakage inductance energy is released.
Switching mode 3, corresponding to [ t ] in FIG. 23,t4]: the equivalent circuit is shown in FIG. 3(c), the power switch tube is kept off, and the diode D1And D2Off, single inductor L1Capacitor C1And three-coupling inductive winding N1And N3To the load R and the output capacitor CoSupply when a single inductor current iL1Three-winding coupled inductor winding current iN1、iN2、iN3When the minimum is reached, the modality ends.
Switching mode 4, corresponding to [ t ] in FIG. 24,t5]: the equivalent circuit is shown in FIG. 3(D), the power switch tube is turned on, and the DC voltage passes through the diode D1For single inductor L1Charging, direct voltage passing through diode D2Coupling three windings with an inductive winding N1And N2Charging, due to the magnetic induction principle, winding N1And N3Through diode D1Capacitor C1Charging while a single inductor L1Capacitor C1And three-coupling inductive winding N1And N3To the load R and the output capacitor CoPower up, this mode ends.
The gain expression from the above analysis is:
Figure BDA0001810224520000041
wherein D is the conduction duty ratio of the power switch tube, the working range is (0,1), K is the winding factor of the three-winding coupling inductor, and the specific relationship is as follows:
Figure BDA0001810224520000042
as shown in fig. 5, the gain is related to the winding factor K of the three-winding coupled inductor. In fig. 5, reference numeral 1 denotes a voltage gain curve when K is 2, reference numeral 2 denotes a voltage gain curve when K is 3, reference numeral 3 denotes a voltage gain curve when K is 4, reference numeral 4 denotes a voltage gain curve when K is 5, and reference numeral 5 denotes a voltage gain curve when K is 6.
As shown in fig. 4, the input voltage Vin80V, output voltage VoFig. 4(a) shows experimental waveforms of input voltage, output voltage, and output current, where the abscissa of the coordinate system is 2 ms/cell, input voltage is 100V/cell, output voltage is 200V/cell, and output current is a/cell; FIG. 4(b) shows a capacitor C1And an output capacitor CoThe abscissa of the experimental waveform of (1) is 2 milliseconds/cell, and the ordinate of the experimental waveform of (2) is 200 volts/cell; FIG. 4(c) shows a single inductor current iL1And three-winding coupled inductor winding current iN1、iN2、iN3The abscissa of the experimental waveform of (1) is 10 microseconds per cell, and the ordinate of the experimental waveform of (2) is 200 volts per cell; FIG. 4(D) is a diode D1And D2And DoThe timing logic of its turn-on and turn-off can be seen. The abscissa is 10 microseconds per cell and the ordinate is 200 volts per cell. As can be seen from the figure, the input current is continuous and has a high output gain.
The fourth concrete implementation mode: the present embodiment is specifically described with reference to fig. 1, and the present embodiment further describes a voltage-doubling three-winding coupled inductor high-gain dc converter described in the first embodiment, where the gain G of the dc converter is:
Figure BDA0001810224520000051
wherein D is the conduction duty ratio of the power switch tube, the working range is (0,1), K is the winding factor of the three-winding coupling inductor,
Figure BDA0001810224520000052
coupled inductor winding N1Coupled inductor winding N2And a coupled inductor winding N3Respectively, the number of turns of the three-winding coupling inductance winding.
The third concrete implementation mode: in this embodiment, a voltage-multiplying three-winding coupled inductor high-gain dc converter according to the first embodiment is further described, in this embodiment, a dc voltage source VinThe input voltage and the voltage obtained by the load R satisfy the gain G formula:
Figure BDA0001810224520000061
wherein D is the conduction duty ratio of the power switch tube, the working range is (0,1), K is the winding factor of the three-winding coupling inductor,
Figure BDA0001810224520000062
coupled inductor winding N1Coupled inductor winding N2And a coupled inductor winding N3Respectively, the number of turns of the three-winding coupling inductance winding.

Claims (3)

1. A voltage-multiplying three-winding coupling inductance high-gain direct current converter is characterized by comprising three-winding coupling inductance windings, a voltage-multiplying structure and a power switch tube S1And an output diode Do，
Three-winding coupled inductor winding for power switch tube S1When conducting, the DC voltage source V is connectedinThe input energy is stored and amplified through a voltage doubling structure;
and also for power switch tubes S1When the power is turned off, the power switch tube S is used1The parasitic capacitance absorbs the leakage inductance energy to make the power switch tube S1The voltage at two ends is higher than that of the output capacitor CoTurn on the output diode DoPassing the amplified energy through an output diode DoIs a load R and an output capacitor CoSupplying power;
the three-winding coupling inductance winding comprises a coupling inductance winding N1Coupled inductor winding N2And a coupled inductor winding N3，
The voltage doubling structure comprises a diode D1Diode D2And a capacitor C1，
DC voltage source VinThe positive electrode is connected with an inductor L simultaneously1And a diode D2Positive electrode of (1), inductor L1The other end of the capacitor C is simultaneously connected with a capacitor C1And a diode D1Anode of (2), diode D1Negative pole of the power switch tube S1Of the power switch tube S1Source electrodes of the two-stage transistor are simultaneously connected with a direct current voltage source VinNegative electrode, output capacitor CoOne terminal of (1) and one terminal of a load R, a capacitor C1The other end of the first and second coils is connected with a coupling inductance winding N3Primary side of the coupled inductor winding N3The secondary side of the transformer is simultaneously connected with a coupling inductance winding N1Primary side and coupled inductor winding N2Primary side of the coupled inductor winding N2Secondary side of the diode D2The anode of (a) is provided,
coupled inductor winding N1Secondary side of the diode is connected with an output diode DoAnode of (2), diode DoThe negative electrode of the capacitor is simultaneously connected with an output capacitor CoAnd the other end of the load R.
2. The voltage-multiplying type three-winding coupled inductor high-gain direct current converter as claimed in claim 1, further comprising an inductor L1，
DC voltage source VinBy means of a voltage doubling arrangement for the inductor L1Charging at the power switch tube S1When turned off, the inductance L1Is a load R and an output capacitor CoAnd (5) supplying power.
3. The voltage-multiplying three-winding coupled inductor high-gain DC converter as claimed in claim 1, wherein the gain G of the DC converter is:
Figure FDA0002412965440000011
in the formula, D is a power switch tube S1The on duty ratio is (0,1) in the working range, K is the winding factor of the three-winding coupling inductor,
Figure FDA0002412965440000012
coupled inductor winding N1Coupled inductor winding N2And a coupled inductor winding N3Respectively, the number of turns of the three-winding coupling inductance winding.
CN201811114747.4A 2018-09-25 2018-09-25 Voltage-multiplying type three-winding coupling inductance high-gain direct current converter Active CN109039067B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811114747.4A CN109039067B (en) 2018-09-25 2018-09-25 Voltage-multiplying type three-winding coupling inductance high-gain direct current converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811114747.4A CN109039067B (en) 2018-09-25 2018-09-25 Voltage-multiplying type three-winding coupling inductance high-gain direct current converter

Publications (2)

Publication Number Publication Date
CN109039067A CN109039067A (en) 2018-12-18
CN109039067B true CN109039067B (en) 2020-06-09

Family

ID=64617831

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811114747.4A Active CN109039067B (en) 2018-09-25 2018-09-25 Voltage-multiplying type three-winding coupling inductance high-gain direct current converter

Country Status (1)

Country Link
CN (1) CN109039067B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112713769B (en) * 2020-12-29 2022-03-22 广东电网有限责任公司电力科学研究院 Single-switch Boost three-level converter based on Boost formula
CN114825933A (en) * 2022-05-06 2022-07-29 江南大学 Direct-current three-level Buck-Boost converter for photovoltaic power generation
CN115765447B (en) * 2022-11-08 2023-06-02 东北电力大学 Dual-coupling inductance series direct current boost converter and control method
CN116169875B (en) * 2023-02-28 2023-09-15 广东工业大学 Three-winding high-voltage transformation ratio bidirectional DC-DC converter
CN117254669B (en) * 2023-11-14 2024-02-02 中山市宝利金电子有限公司 Binary multiport converter based on switch coupling inductance

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104734547B (en) * 2015-03-19 2017-08-04 南京航空航天大学 A kind of boosting unit Z-source inverter
CN105471253B (en) * 2015-11-24 2018-07-06 哈尔滨工业大学 T-shaped coupling inductance network boost converter
CN105245096B (en) * 2015-11-24 2017-10-03 哈尔滨工业大学 A kind of high-gain three winding cascade boost converter
CN107517016A (en) * 2017-08-31 2017-12-26 哈尔滨工业大学 With the high step-up ratio Y source inventers for suppressing the influence of coupling inductance leakage inductance
CN108418458A (en) * 2018-03-13 2018-08-17 广东工业大学 A kind of half-bridge inverter based on quasi- Y source impedance networks

Also Published As

Publication number Publication date
CN109039067A (en) 2018-12-18

Similar Documents

Publication Publication Date Title
CN109039067B (en) Voltage-multiplying type three-winding coupling inductance high-gain direct current converter
CN109217681B (en) Bidirectional resonant converter
KR20130062916A (en) Two stage resonant converter
CN105245096A (en) High-gain three-winding cascade boost converter
CN111431415B (en) High-boost isolated DC converter with parallel input and series output
CN105553272A (en) Straight-through prevention half-bridge LLC resonance converter
CN109245545B (en) High-voltage gain LCL resonant DC-DC converter
CN108199579B (en) High-transformation-ratio soft-switching DC-DC buck converter with coupling inductor
CN109698618B (en) High-gain boost converter realized by coupling inductor boost unit and control method thereof
CN109586583B (en) Soft switch current feed push-pull type DC-DC converter
CN103441690B (en) Method for controlling combined converter for achieving tight adjusting output with high-frequency alternating-current side connected in series
CN106655839B (en) Isolated soft switch alternating current-direct current conversion power supply
TWI687031B (en) High step-down ration direct current power converter
CN115765447B (en) Dual-coupling inductance series direct current boost converter and control method
TW202011676A (en) High-boost direct current converter respectively controlling the main switch and the auxiliary switch to be switched between a conducting state and a non-conducting state
CN210297551U (en) DCDC boost converter
CN210444179U (en) Buck current feed push-pull topology series resonance circuit
TWI694667B (en) High boost converter
CN106787706B (en) Coupling inductor hybrid lifting converter
CN117335663B (en) L-source direct-current boost converter based on inverted-L-shaped coupling inductance voltage doubling unit and control method thereof
CN216216540U (en) PWM control series resonance converter for electric automobile charger
CN110518805B (en) DCDC boost converter and method for realizing full-range soft switching
CN115714532B (en) Dual-switch direct-current boost converter based on coupling inductance voltage doubling unit and control method
CN203352447U (en) Soft switch half-bridge circuit
CN111092555B (en) Three-level soft switch high-frequency resonant converter

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant