CN104300802A - Single-stage boost inverter with magnetic integration transformer - Google Patents
Single-stage boost inverter with magnetic integration transformer Download PDFInfo
- Publication number
- CN104300802A CN104300802A CN201410332723.1A CN201410332723A CN104300802A CN 104300802 A CN104300802 A CN 104300802A CN 201410332723 A CN201410332723 A CN 201410332723A CN 104300802 A CN104300802 A CN 104300802A
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- Prior art keywords
- winding
- magnetic core
- magnetic
- stage boost
- inductance
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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
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
Provided in the invention is a single-stage boost inverter with a magnetic integration transformer. The single-stage boost inverter comprising a direct-current power supply (1), a single-stage boost network (2) and an inverter circuit (3) is characterized in that the direct-current power supply (1) includes a power supply and an inductor L3. The single-stage boost network uses an integrated magnetic element (7) as a magnetic integration transformer and the integrated magnetic element (7) has magnetic cores arranged in opposite; a primary winding (n1), a secondary winding (n2), and a winding (n3) of the inductor L3 respectively wind around the opposite magnetic cores; the input terminal of the primary winding (n1) is connected with a primary circuit and the output terminal of the secondary winding (n2) is connected with a secondary circuit; and the winding (n3) of the inductor L3 is connected to the positive electrode of the power supply and the other end is connected with the single-stage boost network (2). The primary winding (n1) and the secondary winding (n2) are formed by coupling inductors or tapping inductors. Air gaps are formed between the magnetic columns of the opposite magnetic cores. According to the inverter, the size of the magnetic element can be reduced; the leakage inductance can be controlled easily; and the winding copper loss can be reduced.
Description
Technical field
The invention belongs to power electronic equipment field, relate to a kind of magnetic integrated converter, be specifically related to the single-stage boost inverter of a kind of coupling inductance or tap inductor formation.
Background technology
With the single-stage boost inverter (CL-SSBI or TL-SSBI) that coupling inductance or tap inductor build, be between input power and inverter bridge, insert the passive network comprising electric capacity and inductance, the Z-source inverter of formation.They use conventional voltage source inventer unallowed " shoot-through zero vector " state, and regulate the turn ratio of coupling inductance or tap inductor, realize stepping functions.Their advantage embodies a concentrated reflection of:
(1) by controlling the bridge arm direct pass time, realize single-stage buck mapping function, AC voltage can, below or above input direct-current side voltage, provide degree during Voltage Drop to get over ability;
(2) because inverter bridge leg leads directly to a kind of normal mode of operation becoming inverter, there will not be misleading or turning off by mistake and damage inverter bridge of switching tube, improve the reliability of complete machine;
(3) owing to not needing the time of dead area compensation (voltage-source type), the distortion of output voltage waveforms is fundamentally avoided.
In recent years, by the generation of electricity by new energy inversion occasion of the motor driven systems of low pressure boosting power supply and the larger change range of input voltage of adaptation, multiple single-stage boost inverter need be proposed for DC bus, comprise: Huang Wenxin, Hu Yuwen, Yang Qi, " monopole inverter capable of boosting voltage " (patent of invention: ZL 2,009 1 0181639.3); Zhou Yufei, Huang Wenxin, " a kind of single-stage boost inverter " (patent of invention: ZL 2,011 1 0046688.3); Zhou Yufei, Huang Wenxin, Hu Yuwen, " single-stage boost inverter of band tap inductor " (patent of invention: 201110203219.8); Zhou Yufei, Huang Wenxin, " single-stage boost inverter " (patent of invention: 201310283970.2); Li Chunjie, Huang Wenxin, " a kind of single-stage boost inverter " (patent of invention: 201310358565.2).These patents all have employed coupling inductance or tap inductor is formed, and supplement the topological race of single-stage boost inverter.But they all adopt discrete magnetic part, the magnetic core quantity of needs is more, volume is comparatively large, and cause the cost of system high, power density is low.
Summary of the invention
Technical problem to be solved:
For the feature that the single-stage boost inverter discrete magnetic part volume adopting coupling inductance or tap inductor to form is larger, the CL-SSBI providing a kind of magnetic integrated or integrated TL-SSBI of magnetic, coupling inductance in primary circuit or tap inductor are become integrated magnetics with inductor design by this converter, this converter can reduce the volume of magnetic part, improves power density.
Technical scheme:
In order to realize above function, the invention provides a kind of single-stage boost inverter adopting magnetic integrated transformer, comprise DC power supply 1, single-stage boost network 2 and inverter circuit 3, it is characterized in that: described DC power supply 1 comprises power supply and inductance L 3, described single-stage boost inverter adopts integrated magnetics 7 as magnetic integrated transformer, described magnetic integrated magnetics 7 comprises the magnetic core be oppositely arranged, this magnetic core be oppositely arranged is wound with respectively the winding n3 of former limit winding n1 and vice-side winding n2 and inductance L 3, the input termination former limit circuit of described former limit winding n1, vice-side winding n2 output access secondary circuit, the winding n3 of described inductance L 3 is connected on the positive pole of power supply, and the other end connects single-stage boost network 2, described former limit winding n1 and vice-side winding n2 is made up of coupling inductance or tap inductor, the each magnetic intercolumniation of the described magnetic core be oppositely arranged has air gap.The winding n3 of described former limit winding n1, vice-side winding n2 and inductance L 3 adopts plane winding or takeup type winding.
The described magnetic core be oppositely arranged is secondary or two secondary parallel connections.
As decision design, described in the magnetic core that is oppositely arranged be the EE magnetic core be oppositely arranged, former limit winding n1 and vice-side winding n2 is respectively around on two center pillars of EE magnetic core, and the winding n3 of inductance L 3 is around on the side column of magnetic core either side.
As decision design, also comprise an I type magnetic core, described in the magnetic core that is oppositely arranged be the UU magnetic core that opening is relative, I type magnetic core is arranged on the centre position of UU magnetic core, former limit winding n1 and vice-side winding n2 is around on same U-shaped magnetic core, and the winding n3 of inductance L 3 is around on another U-shaped magnetic core.
As decision design, the described magnetic core to arranging is EI magnetic core, and E-type magnetic core is arranged towards I type magnetic core, and described former limit winding n1 and vice-side winding n2 is around on the center pillar of E-type magnetic core, and the winding n3 of inductance L 3 is around on the side column of E-type magnetic core either side.
Beneficial effect:
The present invention is directed to the shortcoming that the magnetic part volume of existing single-stage boost inverter is larger, a kind of single-stage boost inverter being applicable to coupling inductance or tap inductor formation is provided, this converter is designed to integrated magnetics by the transformer in primary circuit and inductance, EE magnetic core, EI magnetic core and UU magnetic core is adopted to add a public magnetic post three kinds of integration modes, this converter can reduce the volume of magnetic part, leakage inductance can be made again easily to control, improve power density.
Adopt the execution mode of the integrated magnetics of EI magnetic core, except there is the advantage of EE magnetic core integrated magnetics, also can reduce the copper loss of winding to a certain extent.
UU magnetic core window area is large, the inductance of the larger inductance value of applicable coiling; Adds a public magnetic post in the middle of UU magnetic core, and the loss that the leakage flux linkage winding at the determining positions of air gap air gap place produces is less.
Accompanying drawing explanation
Fig. 1 ~ Fig. 3 is the single-stage boost inverter scheme that existing several employing coupling inductance or tap inductor are formed;
Fig. 4 is the execution mode schematic diagram that the present invention relates to the integrated magnetics adopting EE magnetic core;
Fig. 5 is the execution mode schematic diagram of the integrated magnetics of the employing EI magnetic core that the present invention relates to;
Fig. 6 is the execution mode schematic diagram that the employing UU magnetic core that the present invention relates to adds the integrated magnetics of public magnetic post;
Fig. 7 is a kind of applied topology figure of the integrated magnetics adopting EE magnetic core;
Fig. 8 is a kind of applied topology figure of the integrated magnetics adopting EI magnetic core;
Fig. 9 is a kind of applied topology figure adopting UU magnetic core to add public magnetic post integrated magnetics;
Primary symbols title in above-mentioned accompanying drawing:
u i-direct current power source voltage;
u b-busbar voltage; T
1~ T
6-power tube; C
1, C
2-electric capacity; D
1~ D
3, D-diode; 4-former limit winding n1; 5-vice-side winding n2; L
3-inductance; The winding n3 of 6-inductance L 3;
1-DC power supply, the single-stage boost network that 2-coupling inductance or tap inductor are formed, 3-inverter bridge, 7-integrated magnetics.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in more detail:
The present invention is a kind of single-stage boost inverter adopting magnetic integrated transformer, comprise DC power supply 1, single-stage boost network 2 and inverter circuit 3, it is characterized in that: described DC power supply 1 comprises power supply and inductance L 3, described single-stage boost inverter adopts integrated magnetics 7 as magnetic integrated transformer, described magnetic integrated magnetics 7 comprises the magnetic core be oppositely arranged, this magnetic core be oppositely arranged is wound with respectively the winding n3 of former limit winding n1 and vice-side winding n2 and inductance L 3, the input termination former limit circuit of described former limit winding n1, vice-side winding n2 output access secondary circuit, the winding n3 of described inductance L 3 is connected on the positive pole of power supply, and the other end connects single-stage boost network 2, described former limit winding n1 and vice-side winding n2 is made up of coupling inductance or tap inductor, the each magnetic intercolumniation of the described magnetic core be oppositely arranged has air gap.
The winding n3 of described former limit winding n1, vice-side winding n2 and inductance L 3 adopts plane winding or takeup type winding.
The described magnetic core be oppositely arranged is secondary or two secondary parallel connections.
As decision design, described in the magnetic core that is oppositely arranged be the EE magnetic core be oppositely arranged, former limit winding n1 and vice-side winding n2 is respectively around on two center pillars of EE magnetic core, and the winding n3 of inductance L 3 is around on the side column of magnetic core either side.
As decision design, also comprise an I type magnetic core, described in the magnetic core that is oppositely arranged be the UU magnetic core that opening is relative, I type magnetic core is arranged on the centre position of UU magnetic core, former limit winding n1 and vice-side winding n2 is around on same U-shaped magnetic core, and the winding n3 of inductance L 3 is around on another U-shaped magnetic core.
As decision design, the described magnetic core to arranging is EI magnetic core, and E-type magnetic core is arranged towards I type magnetic core, and described former limit winding n1 and vice-side winding n2 is around on the center pillar of E-type magnetic core, and the winding n3 of inductance L 3 is around on the side column of E-type magnetic core either side.
The magnetic flux of the winding interlinkage of former vice-side winding and inductance L 3 offsets on public magnetic post, thus the volume of public magnetic post is reduced.
Below in conjunction with accompanying drawing, circuit structure of the present invention and operation principle are described.
Fig. 1 ~ Fig. 3 is the not integrated front circuit diagram of single-stage boost inverter that several employing coupling inductance or tap inductor are formed, and the transformer after the present invention is integrated is substituted by the winding integrated magnetics of the former limit winding, vice-side winding and the inductance L 3 that are made up of coupling inductance or tap inductor.
Integrated magnetics example one
Adopt the execution mode schematic diagram of the integrated magnetics of the EE magnetic core be oppositely arranged, as shown in Figure 4, the former limit winding n1 and vice-side winding n2 of coupling inductance or tap inductor is around on center pillar, and the winding n3 of inductance L 3 is around on the side column of either side.
Integrated magnetics example two
Adopt the execution mode schematic diagram of the integrated magnetics of a secondary EI magnetic core, as shown in Figure 5, the former limit winding n1 and vice-side winding n2 of coupling inductance or tap inductor is around on center pillar, and the winding n3 of inductance L 3 is around on the side column of either side.Adopt this magnetic core and winding method except the advantage with Fig. 6, the copper loss of winding can be reduced to a certain extent.
Integrated magnetics example three
The UU magnetic core adopting a pair to be oppositely arranged adds the execution mode schematic diagram of the integrated magnetics of a public magnetic post, as shown in Figure 6, former limit winding n1 and vice-side winding n2 is around on a U-shaped magnetic core, the winding n3 of inductance L 3 is around on an another secondary U-shaped magnetic core, the opening of two secondary magnetic cores is staggered relatively, and inserts an I type magnetic core between which as public magnetic post.The air-gap-free of public magnetic post cylinder own.
With reference to accompanying drawing 7, it is the single-stage boost inverter adopting the integrated magnetics of Fig. 4 to be applied to the employing magnetic integrated transformer of Fig. 2.Wherein, the winding n3 of inductance L 3 is connected on the positive pole of power supply, the other end connects the anode of diode D and one end of the second electric capacity C2, the negative electrode of diode D connects the Same Name of Ends of autotransformer vice-side winding n2, forward connect in former and deputy limit winding (n1, n2) of autotransformer, the different name end of former limit winding n1 connects the other end of the second electric capacity C2 and the positive pole of bus, autotransformer adopts tap inductor, described tap connects one end of the first electric capacity C1, and the other end of the first electric capacity C1 connects the negative pole of power supply and bus.The former limit winding n1 and vice-side winding n2 of the autotransformer in integrated magnetics 7 is respectively around on the center pillar of EE magnetic core, the winding n3 of inductance L 3 is around on the side column of either side, and the magnetic flux of former limit winding n1, vice-side winding n2 and winding n3 interlinkage offsets on opposite side side column.
Embodiments of the invention two, with reference to accompanying drawing 8, be the single-stage boost inverter schematic diagram adopting the integrated magnetics of Fig. 5 to be applied to Fig. 2, and embodiments of the invention three, with reference to accompanying drawing 9, it is the single-stage boost inverter schematic diagram adopting the integrated magnetics of Fig. 6 to be applied to Fig. 2.
The present invention is not limited to above-mentioned embodiment, one of ordinary skill in the art is according to content disclosed by the invention, other numerous embodiments can be adopted, such as, adopt dissimilar magnetic core or material, or integrated core mode of the present invention is used for the single-stage boost inverter of other coupling inductance or tap inductor formation.Therefore, every based on technical thought of the present invention, do the design that some simply change or change, all fall into the scope of protection of the invention.
Claims (6)
1. one kind adopts the single-stage boost inverter of magnetic integrated transformer, comprise DC power supply (1), single-stage boost network (2) and inverter circuit (3), it is characterized in that: described DC power supply (1) comprises power supply and inductance L 3, described single-stage boost inverter adopts integrated magnetics (7) as magnetic integrated transformer, described magnetic integrated magnetics (7) comprises the magnetic core be oppositely arranged, this magnetic core be oppositely arranged is wound with respectively the winding (n3) of former limit winding (n1) and vice-side winding (n2) and inductance L 3, the input termination former limit circuit of described former limit winding (n1), vice-side winding (n2) output access secondary circuit, the winding (n3) of described inductance L 3 is connected on the positive pole of power supply, and the other end connects single-stage boost network (2), described former limit winding (n1) and vice-side winding (n2) are made up of coupling inductance or tap inductor, the each magnetic intercolumniation of the described magnetic core be oppositely arranged has air gap.
2. a kind of single-stage boost inverter adopting magnetic integrated transformer according to claim 1, is characterized in that: the winding (n3) of described former limit winding (n1), vice-side winding (n2) and inductance L 3 adopts plane winding or takeup type winding.
3. a kind of single-stage boost inverter adopting magnetic integrated transformer according to claim 1, is characterized in that: described in the magnetic core that is oppositely arranged be one secondary or two secondary in parallel.
4. the single-stage boost inverter of any one employing magnetic integrated transformer according to claims 1 to 3, it is characterized in that: described in the magnetic core that is oppositely arranged be the EE magnetic core be oppositely arranged, former limit winding (n1) and vice-side winding (n2) are respectively around on two center pillars of EE magnetic core, and the winding (n3) of inductance L 3 is around on the side column of magnetic core either side.
5. the single-stage boost inverter of any one employing magnetic integrated transformer according to claims 1 to 3, it is characterized in that: also comprise an I type magnetic core, the described magnetic core be oppositely arranged is the UU magnetic core that opening is relative, I type magnetic core is arranged on the centre position of UU magnetic core, former limit winding (n1) and vice-side winding (n2) are around on same U-shaped magnetic core, and the winding (n3) of inductance L 3 is around on another U-shaped magnetic core.
6. the single-stage boost inverter of any one employing magnetic integrated transformer according to claims 1 to 3, it is characterized in that: the described magnetic core to arranging is EI magnetic core, E-type magnetic core is arranged towards I type magnetic core, described former limit winding (n1) and vice-side winding (n2) are around on the center pillar of E-type magnetic core, and the winding (n3) of inductance L 3 is around on the side column of E-type magnetic core either side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332723.1A CN104300802A (en) | 2014-07-14 | 2014-07-14 | Single-stage boost inverter with magnetic integration transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332723.1A CN104300802A (en) | 2014-07-14 | 2014-07-14 | Single-stage boost inverter with magnetic integration transformer |
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| Publication Number | Publication Date |
|---|---|
| CN104300802A true CN104300802A (en) | 2015-01-21 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410332723.1A Pending CN104300802A (en) | 2014-07-14 | 2014-07-14 | Single-stage boost inverter with magnetic integration transformer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851574A (en) * | 2015-05-15 | 2015-08-19 | 广州金升阳科技有限公司 | Magnetic element and switch power supply based on magnetic element |
| CN107533897A (en) * | 2015-02-24 | 2018-01-02 | 马克西姆综合产品公司 | Low profile coupled-inductors with leakage control |
| CN107887147A (en) * | 2017-12-26 | 2018-04-06 | 天津光电润达电子有限公司 | A kind of magnetic integrated transformer and processing method |
| CN114334406A (en) * | 2021-08-19 | 2022-04-12 | 华为数字能源技术有限公司 | Magnetic integrated structure and transducer |
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| CN103368430A (en) * | 2013-07-08 | 2013-10-23 | 南京航空航天大学 | Single-stage boosting inverter |
| CN103457496A (en) * | 2013-08-15 | 2013-12-18 | 南京航空航天大学 | Single-stage booster inverter |
| CN103595367A (en) * | 2013-11-07 | 2014-02-19 | 华为技术有限公司 | Magnetic integrated device and power conversion circuit |
| KR20140033708A (en) * | 2012-09-10 | 2014-03-19 | 삼성전기주식회사 | Integrated magnetic circuit and the method of reducing magnetic density by shifting phase |
| CN103871716A (en) * | 2014-02-18 | 2014-06-18 | 同济大学 | Integrated magnetic structure |
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2014
- 2014-07-14 CN CN201410332723.1A patent/CN104300802A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140033708A (en) * | 2012-09-10 | 2014-03-19 | 삼성전기주식회사 | Integrated magnetic circuit and the method of reducing magnetic density by shifting phase |
| CN103368430A (en) * | 2013-07-08 | 2013-10-23 | 南京航空航天大学 | Single-stage boosting inverter |
| CN103457496A (en) * | 2013-08-15 | 2013-12-18 | 南京航空航天大学 | Single-stage booster inverter |
| CN103595367A (en) * | 2013-11-07 | 2014-02-19 | 华为技术有限公司 | Magnetic integrated device and power conversion circuit |
| CN103871716A (en) * | 2014-02-18 | 2014-06-18 | 同济大学 | Integrated magnetic structure |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107533897A (en) * | 2015-02-24 | 2018-01-02 | 马克西姆综合产品公司 | Low profile coupled-inductors with leakage control |
| CN107533897B (en) * | 2015-02-24 | 2020-10-16 | 马克西姆综合产品公司 | Low profile coupled inductor with leakage control |
| CN104851574A (en) * | 2015-05-15 | 2015-08-19 | 广州金升阳科技有限公司 | Magnetic element and switch power supply based on magnetic element |
| CN107887147A (en) * | 2017-12-26 | 2018-04-06 | 天津光电润达电子有限公司 | A kind of magnetic integrated transformer and processing method |
| CN114334406A (en) * | 2021-08-19 | 2022-04-12 | 华为数字能源技术有限公司 | Magnetic integrated structure and transducer |
| CN114334406B (en) * | 2021-08-19 | 2024-06-04 | 华为数字能源技术有限公司 | Magnetic integrated structure and transducer |
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