CN106452154A - Magnetic integration three-level dual-buck type half-bridge inverter and working mode thereof - Google Patents
Magnetic integration three-level dual-buck type half-bridge inverter and working mode thereof Download PDFInfo
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- CN106452154A CN106452154A CN201611108235.8A CN201611108235A CN106452154A CN 106452154 A CN106452154 A CN 106452154A CN 201611108235 A CN201611108235 A CN 201611108235A CN 106452154 A CN106452154 A CN 106452154A
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac 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
- H02M7/537—Conversion of dc power input into ac 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, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac 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, e.g. single switched pulse inverters in a bridge configuration
-
- 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
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac 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
- H02M7/537—Conversion of dc power input into ac 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, e.g. single switched pulse inverters
- H02M7/539—Conversion of dc power input into ac 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, e.g. single switched pulse inverters with automatic control of output wave form or frequency
- H02M7/5395—Conversion of dc power input into ac 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, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention relates to a magnetic integration three-level dual-buck type half-bridge inverter. An anode of a direct-current power supply Vd1 is connected with a drain of a switch tube S1; a source of the switch tube S1 is connected with a source of a switch tube S2 and a dotted terminal of an inductor L1; a synonym end of the inductor L1 is connected with a synonym end of an inductor L2, one end of an output filter capacitor C and one end of a load R; a dotted terminal of the inductor L2 is connected with an anode of a diode D2 and a drain of a switch tube S3; a source of the switch tube S3 is connected with a cathode of a direct-current power supply Vd2; a drain of the switch tube S2 is connected with a cathode of a diode D1; a cathode of the diode D2 is connected with a source of a switch tube S4; a cathode of the direct-current power supply Vd1, an anode of the direct-current power supply Vd2, an anode of the diode D1, the other end of the output filter capacitor C, the other end of the load R and a drain of the switch tube S4 are grounded. The invention also relates to a working mode. The magnetic integration three-level dual-buck type half-bridge inverter overcomes the defects that the voltage utilization ratio is low, bridge arm output is double-polar PWM modulating wave, the voltage stress of a power device is large, and the size of the output filter capacitor is large in the prior art.
Description
Technical field
The present invention relates to a kind of integrated three-level dual-buck half-bridge inverter of magnetic and its mode of operation.
Background technology
Multi-electrical level inverter overcomes the problem of bridge-type inverter and push-pull dc-to-ac switch tube voltage stress, Er Qie electricity
Flat increasing for number can cause the total harmonic distortion factor of output voltage less, and multi-electrical level inverter is suitable for high-power conversion
Occasion, but multi-electrical level inverter is limited to input capacitance and all presses, and Multilevel modulation is coupled with input all pressures and can cause many level
Converter circuit structure is slow with the numerous and diverse, governing speed of control.Traditional two level dual-buck half-bridge inverters are due to having no bridge
Arm is straight-through, switching tube need not arrange Dead Time, there have independent fly-wheel diode be optimized design, reliability to be high, defeated
Go out that waveform quality is good, efficiency high the advantages of, but two traditional its amplitude of level dual-buck half-bridge inverter input voltage exceed
The twice of output voltage maximum, device voltage stress is big, and DC voltage utilization rate is low, and during normal work, it needs two independences
Output inductor cause the volume and weight of inverter larger, although introduce integrated magnetic can reduce filter inductance
Volume with weight but can introduce the possibility of circulation simultaneously, reduce the reliability of circuit.In three-level dual-buck half-bridge inverter
Middle introducing integrated magnetic may not necessarily be worried circuit and produce circulation, it can be ensured that the reliability of circuit.
Content of the invention
In view of this, it is an object of the invention to provide a kind of integrated three-level dual-buck half-bridge inverter of magnetic and its work
Operation mode, overcomes that prior art voltage utilization is low, brachium pontis is output as bipolarity PWM ripple, power device voltage stress
Greatly, the bulky defect of output inductor.
For achieving the above object, the present invention is adopted the following technical scheme that：A kind of integrated three-level dual-buck half-bridge of magnetic is inverse
Become device, it is characterised in that：Including DC source Vd1, DC source Vd2, diode D1, diode D2, switching tube S1, switching tube
S2, switching tube S3, switching tube S4, the coupling inductance being made up of inductance L1 and inductance L2, output filter capacitor C and load R；Direct current
The positive pole of power supply Vd1 is connected with the drain electrode of switching tube S1, the source electrode of switching tube S1 source electrode respectively with switching tube S2, inductance L1
Same Name of Ends connects, the different name end of inductance L1 different name end respectively with inductance L2, one end of output filter capacitor C, one end of load R
Connection, the Same Name of Ends of inductance L2 positive pole respectively with diode D2, the drain electrode of switching tube S3 are connected, the source electrode of switching tube S3 with straight
The negative pole connection of stream power supply Vd2, the drain electrode of switching tube S2 is connected with the negative pole of diode D1, the negative pole of diode D2 and switching tube
The source electrode connection of S4；The negative pole of DC source Vd1, the positive pole of DC source Vd2, the positive pole of diode D1, output filter capacitor C
The other end, load the other end and switching tube S4 grounded drain.
A kind of mode of operation of the integrated three-level dual-buck half-bridge inverter of magnetic, it is characterised in that：Including
（1）Flow through the output current of load Ri o >0 positive half cycle
Working mould formula I：Switching tube S1 is turned on, switching tube S2, switching tube S3, switching tube S4 and diode D2 cut-off, inductance L1's
Electric current IL1Linear rise, switching tube S3 is passed through with diode D1 branch road no current, the inverter bridge output level of switching tube S1 source electrode
For UA=+Ud, wherein, Ud is the output voltage of DC source Vd1 and DC source Vd2；
Working mould formula II：Switching tube S2 and diode D1 is turned on, and switching tube S1, switching tube S3, switching tube S4 and diode D2 cut
Only, the electric current I of inductance L1L1Through switching tube S3 and diode D1 afterflow linear decline, the inverter bridge output electricity of switching tube S1 source electrode
Put down as UA=0；
（2）Flow through the output current of load Ri o By positive negative switching
Working mould formula III：Switching tube S3 body diode is turned on, switching tube S1, switching tube S2, switching tube S4 and diode D1, two poles
Pipe D2 ends, and switching tube S2 body diode is turned under the induction electromotive force UB effect of the Same Name of Ends of inductance L2, inductance L1 energy storage
It is transferred to the electric current I of inductance L2, inductance L2L2Linear decline, the inverter bridge output level of the Same Name of Ends of inductance L2 is UB=-Ud；
（3）Flow through the output current of load Ri o >0 negative half period
Working mould formula IV：Switching tube S3 is turned on, and switching tube S1, switching tube S2, switching tube S4 and diode D1, diode D2 cut
Only, the electric current I of inductance L2L2Linear rise, switching tube S4 is passed through with diode D2 branch road no current, the Same Name of Ends of inductance L2 inverse
It is UB=-Ud to become bridge output level；
Mode of operation V：Switching tube S4 and diode D2 is turned on, and switching tube S1, switching tube S2, switching tube S3 and diode D1 cut
Only, the electric current I of inductance L2L2Through switching tube S4 and diode D2 linear decline, the inverter bridge output level of the Same Name of Ends of inductance L2
For UB=0；
（4）Flow through the output current of load Ri o Just switched by negative sense
Mode of operation VI：Switching tube S1 body diode is turned on, switching tube S2, switching tube S3, switching tube S4 and diode D1, two poles
Pipe D2 ends, and switching tube S1 body diode is turned under the induction electromotive force UA effect of the source electrode of switching tube S1, inductance L2 energy storage
It is transferred to the electric current I of inductance L1, inductance L1L1Linear decline, the inverter bridge output level of the source electrode of switching tube S1 is UA=+Ud.
The present invention is had the advantages that compared with prior art：Inverse compared to existing three-level dual-buck half-bridge
Become device, the integrated three-level dual-buck half-bridge inverter of the magnetic of the present invention is improved, and the quantity of fly-wheel diode is reduced,
So that circuit topological structure becomes simple, integrated magnetic has been simultaneously introduced, the less further volume of filter inductance and weight
Amount.
Description of the drawings
Fig. 1 is existing three-level dual-buck half-bridge inverter main circuit block diagram.
Fig. 2 is the integrated three-level dual-buck half-bridge inverter main circuit block diagram of magnetic of the present invention.
Fig. 3 is that the integrated three-level dual-buck half-bridge inverter brachium pontis of magnetic of the present invention exports UA "+1 " state.
Fig. 4 is that the integrated three-level dual-buck half-bridge inverter brachium pontis of magnetic of the present invention exports UA " 0 " state.
Fig. 5 is that the integrated three-level dual-buck half-bridge inverter brachium pontis of magnetic of the present invention exports UB " -1 " state.
Fig. 6 is that the integrated three-level dual-buck half-bridge inverter brachium pontis of magnetic of the present invention exports UB " -1 " state.
Fig. 7 is that the integrated three-level dual-buck half-bridge inverter brachium pontis of magnetic of the present invention exports UB " 0 " state.
Fig. 8 is that the integrated three-level dual-buck half-bridge inverter brachium pontis of magnetic of the present invention exports UA "+1 " state.
Fig. 9 is the integrated three-level dual-buck half-bridge inverter control block diagram of magnetic of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention will be further described.
Existing three-level dual-buck half-bridge inverter is as shown in figure 1, the integrated three level double voltage reducing type of the magnetic of the present invention half
Bridge inverter is improved on the basis of Fig. 1, reduces two fly-wheel diodes so that circuit topological structure becomes letter
Single, the integrated magnetic being simultaneously introduced, the less further volume of filter inductance and weight, while coupling inductance can be eliminated
Discontinuous current mode area is likely to occur high device voltage spike, it is ensured that the high efficiency of changer and reliability.
Refer to Fig. 2, the integrated three-level dual-buck half-bridge inverter of the magnetic of the present invention includes DC source Vd1, direct current
Power supply Vd2, diode D1, diode D2, switching tube S1, switching tube S2, switching tube S3, switching tube S4, by inductance L1 and inductance
The coupling inductance of L2 composition, output filter capacitor C and load R；The positive pole of DC source Vd1 is connected with the drain electrode of switching tube S1,
The source electrode of switching tube S1 source electrode respectively with switching tube S2, the Same Name of Ends of inductance L1 are connected, the different name end of inductance L1 respectively with electricity
The sense different name end of L2, one end of output filter capacitor C, one end connection of load R, the Same Name of Ends of inductance L2 respectively with diode D2
Positive pole, the drain electrode connection of switching tube S3, the source electrode of switching tube S3 is connected with the negative pole of DC source Vd2, the leakage of switching tube S2
Pole is connected with the negative pole of diode D1, and the negative pole of diode D2 is connected with the source electrode of switching tube S4；The negative pole of DC source Vd1,
The positive pole of DC source Vd2, the positive pole of diode D1, the other end of output filter capacitor C, the other end of load and switching tube S4
Grounded drain, the switching tube S1, switching tube S2, switching tube S3, the grid connection control signal of switching tube S4.Wherein, open
Close pipe S1, switching tube S2 and diode D1 and be followed in series to form the first brachium pontis;Switching tube S3, switch S4 and diode D2 are gone here and there successively
Connection constitutes the second brachium pontis.The control block diagram of switching tube S1 to S4 refer to Fig. 9.
The present invention also provides a kind of mode of operation of the integrated three-level dual-buck half-bridge inverter of magnetic, integrated three level of magnetic
Operation mode of the dual-buck half-bridge under no biasing current half operational mode during the work of circuit current continuous way：Brachium pontis electricity
"+1 state " of pressure UA output voltage+Ud, bridge arm voltage UA output voltage is zero " 0 state ", bridge arm voltage UB output voltage+Ud's
"+1 state ", bridge arm voltage UB output voltage is zero " 0 state ", " -1 state " of bridge arm voltage UB output voltage-Ud.The normal work of circuit
As when have three working conditions of "+1 state " and " -1 state " and " 0 state "；Specific works pattern includes
（1）Flow through the output current of load Ri o >0 positive half cycle
Working mould formula I：Fig. 3, switching tube S1 conducting is refer to, switching tube S2, switching tube S3, switching tube S4 and diode D2 cut
Only, the electric current I of inductance L1L1Linear rise, switching tube S3 is passed through with diode D1 branch road no current, the inversion of switching tube S1 source electrode
Bridge output level is UA=+Ud, and wherein, the output voltage of the output voltage of DC source Vd1 and DC source Vd2 is all Ud；
Working mould formula II：Refer to Fig. 4, switching tube S2 and diode D1 conducting, switching tube S1, switching tube S3, switching tube S4 with
Diode D2 ends, the electric current I of inductance L1L1Through switching tube S3 and diode D1 afterflow linear decline, switching tube S1 source electrode inverse
It is UA=0 to become bridge output level；
（2）Flow through the output current of load Ri o By positive negative switching
Working mould formula III：Refer to the conducting of Fig. 5, switching tube S3 body diode, switching tube S1, switching tube S2, switching tube S4 and two
Pole pipe D1, diode D2 cut-off, switching tube S2 body diode is turned under the induction electromotive force UB effect of the Same Name of Ends of inductance L2,
Inductance L1 stored energy transfer is to the electric current I of inductance L2, inductance L2L2Linear decline, the inverter bridge output level of the Same Name of Ends of inductance L2
For UB=-Ud；
（3）Flow through the output current of load Ri o >0 negative half period
Working mould formula IV：Refer to Fig. 6, switching tube S3 conducting, switching tube S1, switching tube S2, switching tube S4 and diode D1, two
Pole pipe D2 is ended, the electric current I of inductance L2L2Linear rise, switching tube S4 is passed through with diode D2 branch road no current, and inductance L2's is same
The inverter bridge output level at name end is UB=-Ud；
Mode of operation V：Refer to Fig. 7, switching tube S4 and diode D2 conducting, switching tube S1, switching tube S2, switching tube S3 with
Diode D1 ends, the electric current I of inductance L2L2Through switching tube S4 and diode D2 linear decline, the inversion of the Same Name of Ends of inductance L2
Bridge output level is UB=0；
（4）Flow through the output current of load Ri o Just switched by negative sense
Mode of operation VI：Refer to the conducting of Fig. 8, switching tube S1 body diode, switching tube S2, switching tube S3, switching tube S4 and two
Pole pipe D1, diode D2 cut-off, switching tube S1 body diode is turned under the induction electromotive force UA effect of the source electrode of switching tube S1,
Inductance L2 stored energy transfer is to the electric current I of inductance L1, inductance L1L1Linear decline, the inverter bridge output level of the source electrode of switching tube S1
For UA=+Ud.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes that is done according to scope of the present invention patent with
Modification, should all belong to the covering scope of the present invention.
Claims (2)
1. the integrated three-level dual-buck half-bridge inverter of a kind of magnetic, it is characterised in that：Including DC source Vd1, DC source
Vd2, diode D1, diode D2, switching tube S1, switching tube S2, switching tube S3, switching tube S4, by inductance L1 and inductance L2 group
Coupling inductance, output filter capacitor C and the load R for becoming；The positive pole of DC source Vd1 is connected with the drain electrode of switching tube S1, switch
The source electrode of pipe S1 source electrode respectively with switching tube S2, the Same Name of Ends of inductance L1 are connected, the different name end of inductance L1 respectively with inductance L2
Different name end, one end of output filter capacitor C, load R one end connection, the Same Name of Ends of inductance L2 is respectively with diode D2 just
Pole, the drain electrode connection of switching tube S3, the source electrode of switching tube S3 be connected with the negative pole of DC source Vd2, the drain electrode of switching tube S2 and
The negative pole connection of diode D1, the negative pole of diode D2 is connected with the source electrode of switching tube S4；The negative pole of DC source Vd1, direct current
The positive pole of power supply Vd2, the positive pole of diode D1, the other end of output filter capacitor C, load the other end and switching tube S4 leakage
Pole is grounded.
2. the mode of operation of the integrated three-level dual-buck half-bridge inverter of a kind of magnetic based on described in claim 1, its feature
It is：Including
Flow through the output current of load Ri o >0 positive half cycle
Working mould formula I：Switching tube S1 is turned on, switching tube S2, switching tube S3, switching tube S4 and diode D2 cut-off, inductance L1's
Electric current IL1Linear rise, switching tube S3 is passed through with diode D1 branch road no current, the inverter bridge output level of switching tube S1 source electrode
For UA=+Ud, wherein, Ud is the output voltage of DC source Vd1 and DC source Vd2；
Working mould formula II：Switching tube S2 and diode D1 is turned on, and switching tube S1, switching tube S3, switching tube S4 and diode D2 cut
Only, the electric current I of inductance L1L1Through switching tube S3 and diode D1 afterflow linear decline, the inverter bridge output electricity of switching tube S1 source electrode
Put down as UA=0；
Flow through the output current of load Ri o By positive negative switching
Working mould formula III：Switching tube S3 body diode is turned on, switching tube S1, switching tube S2, switching tube S4 and diode D1, two poles
Pipe D2 ends, and switching tube S2 body diode is turned under the induction electromotive force UB effect of the Same Name of Ends of inductance L2, inductance L1 energy storage
It is transferred to the electric current I of inductance L2, inductance L2L2Linear decline, the inverter bridge output level of the Same Name of Ends of inductance L2 is UB=-Ud；
Flow through the output current of load Ri o >0 negative half period
Working mould formula IV：Switching tube S3 is turned on, and switching tube S1, switching tube S2, switching tube S4 and diode D1, diode D2 cut
Only, the electric current I of inductance L2L2Linear rise, switching tube S4 is passed through with diode D2 branch road no current, the Same Name of Ends of inductance L2 inverse
It is UB=-Ud to become bridge output level；
Mode of operation V：Switching tube S4 and diode D2 is turned on, and switching tube S1, switching tube S2, switching tube S3 and diode D1 cut
Only, the electric current I of inductance L2L2Through switching tube S4 and diode D2 linear decline, the inverter bridge output level of the Same Name of Ends of inductance L2
For UB=0；
Flow through the output current of load Ri o Just switched by negative sense
Mode of operation VI：Switching tube S1 body diode is turned on, switching tube S2, switching tube S3, switching tube S4 and diode D1, two poles
Pipe D2 ends, and switching tube S1 body diode is turned under the induction electromotive force UA effect of the source electrode of switching tube S1, inductance L2 energy storage
It is transferred to the electric current I of inductance L1, inductance L1L1Linear decline, the inverter bridge output level of the source electrode of switching tube S1 is UA=+Ud.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611108235.8A CN106452154A (en) | 2016-12-06 | 2016-12-06 | Magnetic integration three-level dual-buck type half-bridge inverter and working mode thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611108235.8A CN106452154A (en) | 2016-12-06 | 2016-12-06 | Magnetic integration three-level dual-buck type half-bridge inverter and working mode thereof |
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| CN106452154A true CN106452154A (en) | 2017-02-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224503A (en) * | 2019-05-14 | 2019-09-10 | 陈林 | Wireless energy transform device and energy transmission control method based on capacitive half-bridge inverter |
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|---|---|---|---|---|
| US20020110010A1 (en) * | 2001-02-09 | 2002-08-15 | Davila Marco A. | Reverse recovery circuit, method of operation thereof and asymmetrical half-bridge power converter |
| CN1929279A (en) * | 2006-08-16 | 2007-03-14 | 南京航空航天大学 | Magnetism-integrated double decompression semi-bridge converter |
| CN101005245A (en) * | 2007-01-15 | 2007-07-25 | 南京航空航天大学 | Semiperiod control single polar double voltage reducing convertor |
| CN101005246A (en) * | 2007-01-15 | 2007-07-25 | 南京航空航天大学 | Three level double voltage reducing type semi-bridge converter |
| CN206226317U (en) * | 2016-12-06 | 2017-06-06 | 福州大学 | The integrated three-level dual-buck half-bridge inverter of magnetic |
-
2016
- 2016-12-06 CN CN201611108235.8A patent/CN106452154A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020110010A1 (en) * | 2001-02-09 | 2002-08-15 | Davila Marco A. | Reverse recovery circuit, method of operation thereof and asymmetrical half-bridge power converter |
| CN1929279A (en) * | 2006-08-16 | 2007-03-14 | 南京航空航天大学 | Magnetism-integrated double decompression semi-bridge converter |
| CN101005245A (en) * | 2007-01-15 | 2007-07-25 | 南京航空航天大学 | Semiperiod control single polar double voltage reducing convertor |
| CN101005246A (en) * | 2007-01-15 | 2007-07-25 | 南京航空航天大学 | Three level double voltage reducing type semi-bridge converter |
| CN206226317U (en) * | 2016-12-06 | 2017-06-06 | 福州大学 | The integrated three-level dual-buck half-bridge inverter of magnetic |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224503A (en) * | 2019-05-14 | 2019-09-10 | 陈林 | Wireless energy transform device and energy transmission control method based on capacitive half-bridge inverter |
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