CN108110990A - Three phase transformation single phase alternating current power supply converters - Google Patents
Three phase transformation single phase alternating current power supply converters Download PDFInfo
- Publication number
- CN108110990A CN108110990A CN201810090591.4A CN201810090591A CN108110990A CN 108110990 A CN108110990 A CN 108110990A CN 201810090591 A CN201810090591 A CN 201810090591A CN 108110990 A CN108110990 A CN 108110990A
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- iron core
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- alternating current
- single phase
- power supply
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- 230000009466 transformation Effects 0.000 title claims abstract description 22
- 238000004804 winding Methods 0.000 claims abstract description 61
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000000844 transformation Methods 0.000 claims 6
- 230000005611 electricity Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000035800 maturation Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000003319 supportive effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K47/00—Dynamo-electric converters
- H02K47/18—AC/AC converters
- H02K47/22—Single-armature frequency converters with or without phase-number conversion
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
- Ac-Ac Conversion (AREA)
Abstract
The present invention provides a kind of three phase transformation single phase alternating current power supply converters, including a housing, a primary iron core, a three-phase AC input circuit, a grade iron core, a single phase ac output circuit and an axis, the primary iron core forms multiple armature winding slots, and the three-phase AC input circuit is wound an armature winding respectively in each armature winding slot；The secondary iron core forms multiple secondary windings slots, and the single phase ac output circuit is wound a secondary windings respectively in each secondary windings slot；The secondary iron core, which is arranged, is fixed on the axis periphery, and the primary iron core and the axis are fixed on the housing, and the primary iron core gap is sheathed on outside the secondary iron core, and the primary iron core is overlapped with the center of circle of the secondary iron core.The three phase transformation single phase alternating current power supply converter of one kind of the present invention meets the actual needs of residential electricity consumption, and has raising transfer efficiency, the advantages of reducing higher hamonic wave, improve the security of power supply.
Description
Technical field
The present invention relates to AC power converter art more particularly to a kind of three phase transformation single phase alternating current power supply converters.
Background technology
At present, three phase AC power generating and electric power system have many advantages, such as electrical equalization, efficient, material saving, low cost, generation
The electric system of various countries of boundary is generally using three-phase alternating current, and generally using three phase alternating current motor, commercial power uses generator more
The consuming device of three-phase.However civil electric appliance such as illuminates, small-sized electric tool, living electric apparatus need single-phase alternating current to power,
Common practice is to be powered using the neutral conductor in a phase line and three-phase four-wire system in three-phase alternating current for resident.
Three-phase alternating current is transformed to single-phase alternating current and also has following three kinds of common technical methods：(1) power electronics is used
Device becomes direct current by three phase rectifier, then direct current is become single-phase alternating current through inversion；(2) driven with threephase motor
Single-phase generator, power supply also uses docking less on the bank after pulling in shore in addition to special occasions such as ship；(3) three are made using LC phase shifting equipments
Phase electricity becomes single-phase alternating current.
But existing method is respectively provided with following problem：Using in a phase line and three-phase four-wire system in three-phase alternating current
The neutral conductor is powered for resident, this easily causes, and three phase supply is uneven, loss increases, occurs to touch electric leakage accident；Using electric power electricity
High-frequency harmonic is introduced using switching device when three-phase alternating current is converted to the method for single-phase alternating current due to inversion by sub-device, is increased
Big loss；Single-phase generator is driven with threephase motor, there are the problem of of high cost, loss is big；Worked as using LC phase shifting equipments
When load changes, there is circulation in LC phase shifting equipments, fever is serious, and system effectiveness declines.
The content of the invention
Deficiency in for the above-mentioned prior art, the present invention provide a kind of three phase transformation single phase alternating current power supply converters, meet
The actual needs of residential electricity consumption, and there is raising transfer efficiency, the advantages of reducing higher hamonic wave, improve the security of power supply.
To achieve these goals, the present invention provides a kind of three phase transformation single phase alternating current power supply converters, including a housing, one
Primary iron core, a three-phase AC input circuit, a grade iron core, a single phase ac output circuit and an axis, the primary iron
Core forms multiple armature winding slots, and the three-phase AC input circuit is wound in each armature winding slot at the beginning of one respectively
Grade winding；The secondary iron core forms multiple secondary windings slots, and the single phase ac output circuit is in each secondary windings slot
A secondary windings is inside wound respectively；The secondary iron core, which is arranged, is fixed on the axis periphery, the primary iron core and institute
It states axis and is fixed on the housing, the primary iron core gap is sheathed on outside the secondary iron core, and the primary iron core and institute
The center of circle for stating secondary iron core overlaps.
Preferably, the three-phase AC input circuit includes three armature windings, and the three-phase AC input circuit uses
Star-like connection mode or triangle connection mode.
Preferably, the single phase ac output circuit includes a secondary windings, and the both ends of the secondary windings connect respectively
One single phase ac output terminal.
Preferably, the turn ratio of the armature winding and the secondary windings is：1.5：1.
Preferably, the number of the armature winding slot is three multiple, and three armature windings each lead into the time
The balanced three-phase current that 120 ° of phase mutual deviation, each armature winding space are in mutually 120 ° of electrical angles.
Preferably, the secondary windings uses sine windings.
Preferably, the distance in the gap formed between the primary iron core and the secondary iron core is 0.3mm.
Preferably, the both ends of the housing are respectively formed a branch sleeve, and the both ends of the axis are inserted in described respectively
In branch sleeve and pass through outside the branch sleeve part stretching housing, the both ends shape of the branch sleeve and the axis
Into the connection structure of mutual cooperation, the both ends of the axis and the housing are interfixed by the connection structure.
Preferably, the branch sleeve is respectively formed a connecting hole, and the both ends of the axis are respectively formed multiple screw holes, institute
The circumferential direction for stating screw hole along the axis is uniformly distributed and the position of the screw hole is corresponding with the position of the connecting hole；The connection
Structure includes the connecting hole, the screw hole and two bolts, the bolt be arranged in the connecting hole and the screw hole and with
The screw hole is spirally connected fixation.
The present invention makes it have following advantageous effect as a result of above technical scheme：
Housing plays support and protective effect to whole device.Primary iron core gap is sheathed on the structure outside secondary iron core, side
Winding inserting when just manufacturing operationally also is beneficial to heat dissipation.Primary iron core, armature winding, secondary windings and secondary iron core
Cooperation realizes conversion of the three-phase alternating current to single-phase alternating current.The equally distributed structure of circumferential direction of multiple screw holes along axis, it is real
Having showed can be as desired by rotating middle shaft, to change phase of the output single-phase alternating current compared with three-phase alternating current.
In addition, three-phase windings are symmetrically placed in primary iron core by the present invention, make threephase load balanced, using based on faraday's electricity
Law of magnetic induction obtains single-phase electric energy from secondary windings, has the advantages that harmonic content is low, securely and reliably powers for civilian installation；
Simultaneously using the manufacture easy to process of technical field of motors maturation production technology, have that device manufacturing is simple, at low cost, operation effect
The advantages of rate is high is very promising product in the conversion of three phase transformation single phase alternating current power supplies, has potential application value.
Description of the drawings
Fig. 1 is the sectional view of three phase transformation single phase alternating current power supply converters of the embodiment of the present invention；
Fig. 2 is the external structure schematic diagram of three phase transformation single phase alternating current power supply converters of the embodiment of the present invention；
Fig. 3 is the Section A-A figure of Fig. 2；
Fig. 4 is the three-phase AC input circuit of the embodiment of the present invention and the circuit diagram of single phase ac output circuit.
Specific embodiment
Below according to 1~Fig. 4 of attached drawing, presently preferred embodiments of the present invention is provided, and is described in detail, is enabled more preferable geographical
Solve function, the feature of the present invention.
Please refer to Fig.1 and Fig. 4, the three phase transformation single phase alternating current power supply converter of one kind that the present invention is implemented, including a housing 1,
One primary iron core 2,3, grade iron cores 4 of a three-phase AC input circuit, a single phase ac output circuit 5 and an axis 6, it is primary
Iron core 2 forms multiple armature winding slots 21, and three-phase AC input circuit 3 is wound in each armature winding slot 21 at the beginning of one respectively
Grade winding 31；Secondary iron core 4 forms multiple secondary windings slots 41, and single phase ac output circuit 5 divides in each secondary windings slot 41
A secondary windings 51 is not wound；Secondary iron core 4, which is arranged, is fixed on 6 periphery of axis, and primary iron core 2 and axis 6 are fixed on shell
Body 1, primary 2 gap of iron core are sheathed on outside secondary iron core 4, and primary iron core 2 is overlapped with the center of circle of secondary iron core 4.
During work, without relative motion between primary iron core 2 and secondary iron core 4.When being passed through three-phase alternating current, in primary iron
The middle generation rotating excitation field of core 2 and secondary iron core 4.
Housing 1 plays support and protective effect to whole device.Primary 2 gap of iron core is sheathed on the structure outside secondary iron core 4,
Facilitate winding inserting during manufacture, be operationally also beneficial to heat dissipation.
Three-phase AC input circuit 3 includes three armature windings 31, and three-phase AC input circuit 3 uses star-like connection mode
Or triangle connection mode.
Single phase ac output circuit 5 includes a secondary windings 51, and the both ends of secondary windings 51 connect a single phase ac respectively
Output terminal L1, L2.
In the present embodiment, the turn ratio of armature winding 31 and secondary windings 51 is：1.5：1.It is suitable for three-phase 380V low pressure
Alternating current is converted to the civilian alternating currents of single-phase 220V.
The number of armature winding slot 21 is three multiple, and three 31 spaces of armature winding are in mutually 120 ° of electrical angles.
Secondary windings 51 uses sine windings 51.During energization, generated under rotating excitation field effect in secondary windings 51 by just
The induced electromotive force of string rule variation, the exportable single phase ac electric energy when external load.
The distance in the gap formed between primary iron core 2 and secondary iron core 4 is 0.3mm.
Fig. 2 and Fig. 3 are referred to, the both ends of housing 1 are respectively formed a branch sleeve 12, and the both ends of axis 6 are inserted in respectively
In branch sleeve 12 and pass through outside 12 part of branch sleeve stretching housing 1, the both ends of branch sleeve 12 and axis 6 form phase interworking
The connection structure of conjunction, the both ends of axis 6 and housing 1 are interfixed by connection structure.
Few frictional rotation can be achieved in 12 internal diameter of branch sleeve and 6 major diameter fit of axis between axis 6 and branch sleeve 12.
In the present embodiment, branch sleeve 12 is respectively formed a connecting hole 121, and the both ends of axis 6 are respectively formed multiple screw holes
61, the circumferential direction of screw hole 61 along axis 6 is uniformly distributed and the position of screw hole 61 is corresponding with the position of connecting hole 121；Connection structure bag
Include connecting hole 121,61 and two bolt 7 of screw hole, bolt 7 is arranged in connecting hole 121 and screw hole 61 and is spirally connected fixation with screw hole 61.
The equally distributed structure of circumferential direction of multiple screw hole 61 along axis 6 so that the three phase transformation single-phase alternating currents of the present embodiment
Source converter can be as desired by rotating middle shaft 6, to change phase of the output single-phase alternating current compared with three-phase alternating current.
~4, when the use of connection structure ensure that work are please referred to Fig.1, ensures primary iron core 2 and secondary iron core during work
Without relative motion between 4.
In the present embodiment, armature winding 31 is designed using three-phase symmetrical, is thoroughly overcome using in conventional three-phase four-wire system
The frequent hair of imbalance between the single-phase three-phase for supplying to be likely to occur during list, the circulation loss inside three-phase and tactile electric leakage accident
It is raw；Operation logic be based on Faraday's electromagnetic induction law, also there is no power electronic equipment three-phase/single-phase invertor high frequency
Harmonic wave and its loss；The cost reduction more than 50% compared with the single phase power supply that threephase motor drives single-phase generator, is not present
LC phase shifting equipments when load changes inside circulation, the problem of fever is serious, system effectiveness declines.
In addition, the theoretical of the present embodiment application threephase motor generates rotating excitation field, theoretical using transformer realizes electricity
It can be transferred by primary to secondary conversion, two kinds of theories are used in a kind of device.Also with harmonic content is low, is securely and reliably
The advantages of civilian installation is powered；Simultaneously using the manufacture easy to process of technical field of motors maturation production technology, there is device system
The advantages of simple, at low cost, operational efficiency is high is made, is very promising product in the conversion of three phase transformation single phase alternating current power supplies, has
There is potential application value.
The present invention is described in detail above in association with attached drawing embodiment, those skilled in the art can be according to upper
It states and bright many variations example is made to the present invention.Thus, some details in embodiment should not form limitation of the invention, this
Invention will be using the scope that the appended claims define as protection scope of the present invention.
Claims (9)
1. a kind of three phase transformation single phase alternating current power supply converters, which is characterized in that intersect including a housing, a primary iron core, one or three
Input circuit, a grade iron core, a single phase ac output circuit and an axis are flowed, the primary iron core forms multiple armature windings
Slot, the three-phase AC input circuit are wound an armature winding respectively in each armature winding slot；The secondary iron
Core forms multiple secondary windings slots, and the single phase ac output circuit is wound once respectively in each secondary windings slot
Grade winding；The secondary iron core, which is arranged, is fixed on the axis periphery, and the primary iron core and the axis are fixed on the shell
Body, the primary iron core gap are sheathed on outside the secondary iron core, and the center of circle weight of the primary iron core and the secondary iron core
It closes.
2. three phase transformations single phase alternating current power supply converter according to claim 1, which is characterized in that the three-phase alternating current input
Circuit includes three armature windings, and the three-phase AC input circuit uses star-like connection mode or triangle connection mode.
3. three phase transformations single phase alternating current power supply converter according to claim 2, which is characterized in that the single phase ac output
Circuit includes a secondary windings, and the both ends of the secondary windings connect a single phase ac output terminal respectively.
4. three phase transformations single phase alternating current power supply converter according to claim 3, which is characterized in that the armature winding and institute
The turn ratio for stating secondary windings is：1.5：1.
5. three phase transformations single phase alternating current power supply converter according to claim 4, which is characterized in that the armature winding slot
Number is three multiple, and three armature windings each lead into the balanced three-phase current of 120 ° of time phase mutual deviation, each institute
Armature winding space is stated mutually in 120 ° of electrical angles.
6. three phase transformations single phase alternating current power supply converter according to claim 5, which is characterized in that the secondary windings uses
Sine windings.
7. according to three phase transformation single phase alternating current power supply converter of claim 1~6 any one of them, which is characterized in that described first
The distance in the gap formed between grade iron core and the secondary iron core is 0.3mm.
8. according to three phase transformation single phase alternating current power supply converter of claim 1~6 any one of them, which is characterized in that the shell
The both ends of body are respectively formed a branch sleeve, and the both ends of the axis are inserted in the branch sleeve and pass through the company respectively
Sleeve part is connect to stretch out outside the housing, the both ends of the branch sleeve and the axis form the connection structure to cooperate,
The both ends of the axis and the housing are interfixed by the connection structure.
9. three phase transformations single phase alternating current power supply converter according to claim 8, which is characterized in that the branch sleeve difference
A connecting hole is formed, the both ends of the axis are respectively formed multiple screw holes, and the screw hole is uniformly distributed along the circumferential direction of the axis
And the position of the screw hole is corresponding with the position of the connecting hole；The connection structure include the connecting hole, the screw hole and
Two bolts, the bolt are arranged in the connecting hole and the screw hole and are spirally connected fixation with the screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810090591.4A CN108110990B (en) | 2018-01-30 | 2018-01-30 | Three-phase single-phase AC power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810090591.4A CN108110990B (en) | 2018-01-30 | 2018-01-30 | Three-phase single-phase AC power converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108110990A true CN108110990A (en) | 2018-06-01 |
| CN108110990B CN108110990B (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810090591.4A Expired - Fee Related CN108110990B (en) | 2018-01-30 | 2018-01-30 | Three-phase single-phase AC power converter |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450205A (en) * | 2019-01-08 | 2019-03-08 | 中铁电气化局集团有限公司第二工程分公司 | A kind of three-phase symmetrical alternating current becomes the alternating current generator of single-phase alternating current |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008073034A1 (en) * | 2006-12-13 | 2008-06-19 | Abb Research Ltd | An induction regulator and use of such regulator |
| CN202579534U (en) * | 2012-03-22 | 2012-12-05 | 北京北机机电工业有限责任公司 | Rotating shaft positioning mechanism |
| CN103460312A (en) * | 2011-03-22 | 2013-12-18 | 西门子工业公司 | Modular reconfigurable polyphase power transformer |
| CN206040409U (en) * | 2016-07-06 | 2017-03-22 | 蒋光祖 | Covert transformer of balance of three -phase input two -phase output |
-
2018
- 2018-01-30 CN CN201810090591.4A patent/CN108110990B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008073034A1 (en) * | 2006-12-13 | 2008-06-19 | Abb Research Ltd | An induction regulator and use of such regulator |
| CN103460312A (en) * | 2011-03-22 | 2013-12-18 | 西门子工业公司 | Modular reconfigurable polyphase power transformer |
| CN202579534U (en) * | 2012-03-22 | 2012-12-05 | 北京北机机电工业有限责任公司 | Rotating shaft positioning mechanism |
| CN206040409U (en) * | 2016-07-06 | 2017-03-22 | 蒋光祖 | Covert transformer of balance of three -phase input two -phase output |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450205A (en) * | 2019-01-08 | 2019-03-08 | 中铁电气化局集团有限公司第二工程分公司 | A kind of three-phase symmetrical alternating current becomes the alternating current generator of single-phase alternating current |
| CN109450205B (en) * | 2019-01-08 | 2024-06-11 | 中铁电气化局集团有限公司 | AC motor for converting three-phase symmetrical AC into single-phase AC |
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| Publication number | Publication date |
|---|---|
| CN108110990B (en) | 2020-04-28 |
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Granted publication date: 20200428 |