CN110401352A - A kind of two-way resonance converter - Google Patents
A kind of two-way resonance converter Download PDFInfo
- Publication number
- CN110401352A CN110401352A CN201910629611.5A CN201910629611A CN110401352A CN 110401352 A CN110401352 A CN 110401352A CN 201910629611 A CN201910629611 A CN 201910629611A CN 110401352 A CN110401352 A CN 110401352A
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- China
- Prior art keywords
- phase full
- bridge circuit
- resonance
- resonant
- full bridge
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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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
- H02M3/33584—Bidirectional converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ac-Ac Conversion (AREA)
Abstract
The invention discloses a kind of two-way resonance converters, including the first three phase full bridge circuit, the first resonance circuit, the second resonance circuit and the second three phase full bridge circuit being sequentially connected, the output end of the first three phase full bridge circuit connects the input terminal of the first resonance circuit, it is connected between first resonance circuit and the second resonance circuit by transformer subelement between the two, the transformer subelement includes primary side winding and vice-side winding, and the output end of second resonance circuit connects the input terminal of the second three phase full bridge circuit.Resonant element is added in transformer secondary in the present invention, and gamut Sofe Switch characteristic when the forward and reverse transmission of energy may be implemented.
Description
Technical field
The invention discloses a kind of two-way resonance converters, are related to power electronics field.
Background technique
Since element is influenced by current stress, power conversion capability is restricted traditional single-phase resonant converter,
Three-phase has the advantages that power density is high, every phase current is small compared with single phase design.Current three-phase controlled resonant converter pair side does not have
There is resonant element, Sofe Switch characteristic when cannot achieve inverted running.
Summary of the invention
The present invention provides a kind of two-way resonance converter the defects of for above-mentioned background technique, in transformer secondary plus
Enter resonant element, gamut Sofe Switch characteristic when the forward and reverse transmission of energy may be implemented.
To achieve the above object, The technical solution adopted by the invention is as follows: a kind of two-way resonance converter, including sequentially phase
The first three phase full bridge circuit, the first resonance circuit, the second resonance circuit and the second three phase full bridge circuit even, first three-phase
The output end of full-bridge circuit connects the input terminal of the first resonance circuit, leads between first resonance circuit and the second resonance circuit
Transformer subelement connection between the two is crossed, the transformer subelement includes primary side winding and vice-side winding, and described second
The output end of resonance circuit connects the input terminal of the second three phase full bridge circuit.
Further, the first three phase full bridge circuit include six switching tubes, every two switching tube constitute a bridge arm, six
Switching tube constitutes three bridge arm parallel connections.
Further, the second three phase full bridge circuit include six switching tubes, every two switching tube constitute a bridge arm, six
Switching tube constitutes three bridge arm parallel connections.
Further, first resonance circuit includes: three the first resonant inductances, three the first resonant capacitances and three
Primary side winding, three the first resonant capacitance connections triangular in shape constitute the first angular branch；Three the first resonant inductances respectively and
Three primary side windings, three the first series arms in series；In the first angular branch, the wiring of every two resonant capacitance
Node connects one end of first series arm, and it is complete that the other end of three the first series arms is separately connected first three-phase
Three bridge arm midpoints of bridge circuit.
Further, second resonance circuit includes: three the second resonant inductances, three the second resonant capacitances and three
Vice-side winding, three the second resonant capacitance connections triangular in shape constitute the second angular branch；Three the second resonant inductances respectively and
Three vice-side windings, three the second series arms in series；In the second angular branch, the wiring of every two resonant capacitance
Node connects one end of second series arm, and it is complete that the other end of three the second series arms is separately connected second three-phase
Three bridge arm midpoints of bridge circuit.
Further, the both ends of every group of bridge arm are the direct current terminals of the first three phase full bridge circuit, the first three phase full bridge electricity
The direct current terminals parallel connection on road accesses the first DC power supply and the first filter capacitor.
Further, the both ends of every group of bridge arm are the direct current terminals of the first three phase full bridge circuit, the second three phase full bridge electricity
The direct current terminals parallel connection on road accesses the second DC power supply and the second filter capacitor.
Further, the transformer subelement is a three-phase transformer or is three separated transformers.
The utility model has the advantages that two-way multiphase resonant converter proposed by the present invention is passed using symmetrical structure in forward and reverse
Identical gain characteristic can be obtained when defeated, the transmitted in both directions of energy may be implemented, and all has the advantages that Sofe Switch, transformer
Primary side and secondary side resonant capacitance use triangle joint that will eliminate triple harmonic current, facilitate the iron core damage for reducing transformer
Consumption and winding loss.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Gain curve when Fig. 2 is positive operation of the invention；
Gain curve when Fig. 3 is inverted running of the present invention.
Specific embodiment
The implementation of technical solution is described in further detail with reference to the accompanying drawing.Following embodiment is only used for more clear
Illustrate to Chu technical solution of the present invention, and not intended to limit the protection scope of the present invention.
A kind of embodiment as shown in Figure 1: a kind of two-way resonance converter, including the first three phase full bridge electricity being sequentially connected
The output end of road, the first resonance circuit, the second resonance circuit and the second three phase full bridge circuit, the first three phase full bridge circuit connects
The input terminal of the first resonance circuit is connect, passes through transformer between the two between first resonance circuit and the second resonance circuit
Subelement connection, the output end of second resonance circuit connect the input terminal of the second three phase full bridge circuit.
First three phase full bridge circuit includes switching tube Q11, Q12, Q21, Q22, Q31 and Q32, and every two switching tube constitutes one
A bridge arm, Q11 and Q12, Q21 and Q22, Q31 and Q32 respectively constitute three bridge arm parallel connections, and the both ends of every group of bridge arm are the one or three
The direct current terminals of phase full-bridge circuit, every group of bridge arm midpoint are the AC terminal of the first three phase full bridge circuit, in every group of bridge arm
Point is connected with the input terminal of the first series arm；The direct current terminals of first three phase full bridge circuit are successively in parallel to access the first direct current
Power supply E1 and the first filter capacitor C7.
Second three phase full bridge circuit includes switching tube S11, S12, S21, S22, S31 and S32, and every two switching tube constitutes one
A bridge arm, S11 and S12, S21 and S22, S31 and S32 respectively constitute three bridge arm parallel connections, and the both ends of every group of bridge arm are the two or three
The direct current terminals of phase full-bridge circuit, every group of bridge arm midpoint are the AC terminal of the second three phase full bridge circuit, in every group of bridge arm
Point is connected with the output end of the second series arm；The direct current terminals of second three phase full bridge circuit are successively in parallel to access the second direct current
Power supply E2 and the second filter capacitor C8.
The transformer subelement is a three-phase transformer or is three separated transformers；The transformer unit
It include: three primary side windings and three vice-side windings；
First resonance circuit includes: three first resonant inductances L1, L2, L3 and three first resonant capacitances C1, C2, C3 and three
Primary side winding, three the first resonant capacitance connections triangular in shape constitute the first angular branch；Each first resonant inductance and one
Primary side winding first series arm in series, three the first resonant inductances respectively with three primary side windings in series three
A first series arm；In the first angular branch, the wiring node of every two resonant capacitance connects one first series connection branch
The output end on road, the input terminal of three the first series arms are separately connected three exchanges output of the first three phase full bridge circuit
End.
Second resonance circuit include: three second resonant inductances L4, L5, L6 and three second resonant capacitances C4, C5, C6 and
Three vice-side windings, three the second resonant capacitance connections triangular in shape constitute the second angular branch；Each second resonant inductance and
One vice-side winding second series arm in series, three the second resonant inductances are connected with three vice-side windings structures respectively
At three the second series arms；In the second angular branch, the wiring node of every two resonant capacitance connects one second string
Join the input terminal of branch, the output end of three the second series arms is separately connected three exchanges of the second three phase full bridge circuit
Input terminal.
Two-way multiphase resonant converter proposed by the present invention, using symmetrical structure, resonant inductance L1, L2, L3 parameter one
It causes, resonant inductance L4, L5, L6 parameter is consistent, and the equivalent value to transformer primary side of L4, L5, L6 is consistent with L1, L2, L3.Resonance
Capacitor C1, C2, C3 parameter is consistent, and resonant capacitance C4, C5, C6 parameter is consistent, and the equivalent value to transformer primary side of C4, C5, C6
It is consistent with the parameter of C1, C2, C3.
As shown in Fig. 2 ~ 3, multiphase resonant converter forward and reverse proposed by the present invention all has LLC transformation when running
The gain and Sofe Switch characteristic of device, and gain curve when forward and reverse operation is identical.
Two-way multiphase resonant converter proposed by the present invention is all had using symmetrical structure in forward and reverse operation
The gain and Sofe Switch characteristic of standby LLC converter can obtain identical gain characteristic in forward and reverse transmission, may be implemented
The transmitted in both directions of energy, and all have the advantages that Sofe Switch, transformer primary side all uses angle-style to connect with secondary side, can eliminate system
The triple-frequency harmonics of system.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of two-way resonance converter, which is characterized in that including the first three phase full bridge circuit, the first resonance electricity being sequentially connected
Road, the second resonance circuit and the second three phase full bridge circuit, the output end of the first three phase full bridge circuit connect the first resonance electricity
The input terminal on road is connected between first resonance circuit and the second resonance circuit by transformer subelement between the two,
The transformer subelement includes primary side winding and vice-side winding, and it is complete that the output end of second resonance circuit connects the second three-phase
The input terminal of bridge circuit.
2. a kind of two-way resonance converter according to claim 1, which is characterized in that the first three phase full bridge circuit includes six
A switching tube, every two switching tube constitute a bridge arm, and six switching tubes constitute three bridge arm parallel connections.
3. a kind of two-way resonance converter according to claim 1, which is characterized in that the second three phase full bridge circuit includes six
A switching tube, every two switching tube constitute a bridge arm, and six switching tubes constitute three bridge arm parallel connections.
4. a kind of two-way resonance converter according to claim 2, which is characterized in that first resonance circuit includes:
Three the first resonant inductances, three the first resonant capacitances and three primary side windings, three the first resonant capacitance connections triangular in shape,
Constitute the first angular branch；Three the first resonant inductances respectively with three primary side windings, three the first series arms in series；
In the first angular branch, the wiring node of every two resonant capacitance connects one end of first series arm, and three the
The other end of one series arm is separately connected three bridge arm midpoints of the first three phase full bridge circuit.
5. a kind of two-way resonance converter according to claim 3, which is characterized in that second resonance circuit includes:
Three the second resonant inductances, three the second resonant capacitances and three vice-side windings, three the second resonant capacitance connections triangular in shape,
Constitute the second angular branch；Three the second resonant inductances respectively with three vice-side windings, three the second series arms in series；
In the second angular branch, the wiring node of every two resonant capacitance connects one end of second series arm, and three the
The other end of two series arms is separately connected three bridge arm midpoints of the second three phase full bridge circuit.
6. a kind of two-way resonance converter according to claim 2, which is characterized in that the both ends of every group of bridge arm are the one or three
The direct current terminals parallel connection of the direct current terminals of phase full-bridge circuit, the first three phase full bridge circuit accesses the first DC power supply and first
Filter capacitor.
7. a kind of two-way resonance converter according to claim 3, which is characterized in that the both ends of every group of bridge arm are the two or three
The direct current terminals parallel connection of the direct current terminals of phase full-bridge circuit, the second three phase full bridge circuit accesses the second DC power supply and second
Filter capacitor.
8. a kind of two-way resonance converter according to claim 1, which is characterized in that the transformer subelement is one
Three-phase transformer is three separated transformers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910629611.5A CN110401352A (en) | 2019-07-12 | 2019-07-12 | A kind of two-way resonance converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910629611.5A CN110401352A (en) | 2019-07-12 | 2019-07-12 | A kind of two-way resonance converter |
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| Publication Number | Publication Date |
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| CN110401352A true CN110401352A (en) | 2019-11-01 |
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| CN201910629611.5A Pending CN110401352A (en) | 2019-07-12 | 2019-07-12 | A kind of two-way resonance converter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111193398A (en) * | 2020-02-21 | 2020-05-22 | 固德威电源科技(广德)有限公司 | Isolated bidirectional DCDC converter and current bidirectional control method |
| CN111446859A (en) * | 2020-04-13 | 2020-07-24 | 威睿电动汽车技术(宁波)有限公司 | C LL C bidirectional DC-DC converter |
| CN112564497A (en) * | 2020-12-02 | 2021-03-26 | 阳光电源股份有限公司 | Three-phase LLC resonant DC converter |
| CN112688572A (en) * | 2020-12-31 | 2021-04-20 | 王艳萍 | Bidirectional DC-DC converter |
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| US20130201725A1 (en) * | 2009-12-17 | 2013-08-08 | Eltek As | Resonant circuit and resonant dc/dc converter |
| CN103683964A (en) * | 2013-12-20 | 2014-03-26 | 华为技术有限公司 | Resonant bidirectional transducer, uninterruptible power supply device and control method |
| CN205992859U (en) * | 2016-08-10 | 2017-03-01 | 卢军 | A kind of symmetrical two-way DC converter |
| CN107294392A (en) * | 2017-08-11 | 2017-10-24 | 何晓东 | A kind of bidirectional DC/DC converter |
| CN109495007A (en) * | 2018-12-29 | 2019-03-19 | 深圳市新能安华技术有限公司 | A kind of two-way AC/DC converter |
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2019
- 2019-07-12 CN CN201910629611.5A patent/CN110401352A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130201725A1 (en) * | 2009-12-17 | 2013-08-08 | Eltek As | Resonant circuit and resonant dc/dc converter |
| CN103683964A (en) * | 2013-12-20 | 2014-03-26 | 华为技术有限公司 | Resonant bidirectional transducer, uninterruptible power supply device and control method |
| CN205992859U (en) * | 2016-08-10 | 2017-03-01 | 卢军 | A kind of symmetrical two-way DC converter |
| CN107294392A (en) * | 2017-08-11 | 2017-10-24 | 何晓东 | A kind of bidirectional DC/DC converter |
| CN109495007A (en) * | 2018-12-29 | 2019-03-19 | 深圳市新能安华技术有限公司 | A kind of two-way AC/DC converter |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111193398A (en) * | 2020-02-21 | 2020-05-22 | 固德威电源科技(广德)有限公司 | Isolated bidirectional DCDC converter and current bidirectional control method |
| CN111446859A (en) * | 2020-04-13 | 2020-07-24 | 威睿电动汽车技术(宁波)有限公司 | C LL C bidirectional DC-DC converter |
| CN112564497A (en) * | 2020-12-02 | 2021-03-26 | 阳光电源股份有限公司 | Three-phase LLC resonant DC converter |
| CN112688572A (en) * | 2020-12-31 | 2021-04-20 | 王艳萍 | Bidirectional DC-DC converter |
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Application publication date: 20191101 |