CN114758872A - 12-pulse traction rectification phase-shifting dry-type transformer for urban rail - Google Patents
12-pulse traction rectification phase-shifting dry-type transformer for urban rail Download PDFInfo
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- CN114758872A CN114758872A CN202210516913.3A CN202210516913A CN114758872A CN 114758872 A CN114758872 A CN 114758872A CN 202210516913 A CN202210516913 A CN 202210516913A CN 114758872 A CN114758872 A CN 114758872A
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- 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
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- 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
- H01F27/006—Details of transformers or inductances, in general with special arrangement or spacing of turns of the winding(s), e.g. to produce desired self-resonance
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- 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
- H01F27/29—Terminals; Tapping arrangements for signal inductances
Abstract
The invention discloses a 12-pulse traction rectification phase-shifting dry-type transformer for an urban rail, which comprises: the phase-locked loop comprises an A-phase primary coil, a B-phase primary coil and a C-phase primary coil, wherein the A-phase primary coil is connected with a voltage UA, the B-phase primary coil is connected with a voltage UB, the C-phase primary coil is connected with a voltage UC, the phase difference between UA and UB is 120 degrees, and the phase difference between UC and UA is 120 degrees; the A-phase primary coil includes: the first main winding is connected with the first phase-shifting winding, and the joint of the first main winding and the first phase-shifting winding is a first joint; the B-phase primary coil includes: the second main winding is connected with the second phase-shifting winding, and a second joint is arranged at the joint of the second main winding and the second phase-shifting winding; the C-phase primary coil includes: a third main winding and a third phase shift winding. The 12-pulse traction rectification phase-shifting dry-type transformer for the urban rail solves the problem that the phase shifting cannot be realized in the prior art.
Description
Technical Field
The invention relates to a transformer, in particular to a 12-pulse traction rectification phase-shifting dry-type transformer for an urban rail.
Background
Chinese patent discloses a 12-pulse rectifier transformer with single-body low-voltage staggered arrangement, with application number CN201720841702.1, comprising: the transformer comprises a primary winding, a voltage regulating winding, a high-voltage winding, a phase-shifting winding and a low-voltage winding; the voltage regulating winding realizes multi-stage continuous voltage regulation through the on-load switch and supplies power to the high-voltage winding and the phase-shifting winding; the low-voltage winding adopts an in-phase inverse parallel connection wire outlet mode and comprises a low-voltage angle connection winding and a low-voltage star connection winding. Although the influence of the harmonic waves on the power grid is reduced, the transformer has the following disadvantages:
it is unknown how the transformer realizes the phase shift, and it is unknown whether the phase shift angle can be adjusted.
Disclosure of Invention
The invention provides a 12-pulse traction rectification phase-shifting dry-type transformer for an urban rail, which solves the problem that the phase shifting cannot be realized in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention discloses a 12-pulse traction rectification phase-shifting dry-type transformer for an urban rail, which comprises: the A-phase primary coil, the B-phase primary coil and the C-phase primary coil are connected with a voltage UAB-phase primary winding connected to voltage UBThe C-phase primary coil is connected with a voltage UC，UAAnd UBPhase difference of 120 DEG and UCAnd UAThe phase difference is 120 degrees; the A-phase primary coil includes: the first main winding is connected with the first phase-shifting winding, and the joint of the first main winding and the first phase-shifting winding is a first joint; the B-phase primary coil includes: the second main winding is connected with the second phase-shifting winding, and a second joint is arranged at the joint of the second main winding and the second phase-shifting winding; the C-phase primary coil includes: the third main winding is connected with the third phase-shifting winding, and a third joint is formed at the joint of the third main winding and the third phase-shifting winding; the first joint is connected to one end of the second main winding, which is far away from the second phase-shifting winding; the second joint is connected to one end of the third main winding, which is far away from the third phase-shifting winding; the third junction is connected to an end of the first main winding that is remote from the first phase shift winding.
Preferably, the a-phase primary coil, the B-phase primary coil, and the C-phase primary coil each include: the phase-shifting winding comprises a first line segment, a second line segment, a third line segment and a fourth line segment, wherein the first line segment, the second line segment and the fourth line segment are sequentially arranged from low to high, a space is formed between the first line segment and the second line segment, the first line segment is connected with the second line segment, the third line segment is wound outside one end, close to the fourth line segment, of the second line segment, the joint of the second line segment and the third line segment is a first joint, a second joint or a third joint, the third line segment and the second line segment have distances to the fourth line segment, the third line segment and the fourth line segment form a first phase-shifting winding, a second phase-shifting winding and a third phase-shifting winding, and the first line segment and the second line segment form a first main winding, a second main winding and a third main winding.
Preferably, the first line segment and the fourth line segment each include: the outer ends of the first and second segments are both wire-out ends, the inner end of the first segment is connected with the inner end of the second segment without interruption, and the first segment is positioned below the second segment.
Preferably, the third segment includes: the third minor segment, the fourth minor segment, fifth minor segment and sixth minor segment, the third minor segment, the fourth minor segment, fifth minor segment and sixth minor segment set gradually by supreme down, third minor segment inner is connected with fourth minor segment inner is uninterrupted, fourth minor segment outer end and fifth minor segment outer end are uninterrupted to be connected, fifth minor segment inner and sixth minor segment inner are uninterrupted to be connected the section, third minor segment outer end and sixth line segment outer end all are the leading-out terminal, the sixth line segment outer end with the third line segment be connected.
Preferably, the distance d1 between the first line segment and the second line segment is 40mm, the distance d2 between the fourth small segment and the fifth small segment is 40mm, the distance d3 between the sixth small segment and the third line segment is 40mm, the distance d4 between the first small segment and the second small segment in the first line segment is 20mm, the distance d5 between the third small segment and the fourth small segment is 20mm, the distance d6 between the fifth small segment and the sixth small segment is 20mm, and the distance d7 between the first small segment and the second small segment in the third line segment is 20 mm.
Preferably, an outer positioning layer is wound around the a-phase primary coil, the B-phase primary coil, and the C-phase primary coil, and an inner positioning layer is wound around the a-phase primary coil, the B-phase primary coil, and the C-phase primary coil, and each of the inner positioning layer and the outer positioning layer includes: the glass fiber net layer is wound with the positioning belt.
Preferably, the positioning tape is a glass fiber cloth tape.
Preferably, the glass fiber mesh layer is formed by winding at least two glass fiber meshes, the joint of two adjacent glass fiber mesh meshes is a lap joint, all lap joints are arranged in a staggered mode, and the length of the lap joint is 10 mm.
Preferably, the winding of the phase a primary coil, the phase B primary coil and the phase C primary coil is performed according to the following steps: s1, winding a fourth line segment; s2, leading out a first adjusting end tap on the fourth line segment; s3, winding a sixth small section in the second line segment; s4, winding a third line segment; s5, welding the joint of the sixth section and the third section to form a B0 tap; and S6, leading out a second adjusting end tap on the third line segment.
Preferably, a DMD insulation layer is wound outside the first adjusting end tap, the second adjusting end tap and the B0 tap, and a polyester film insulation layer is wound outside the DMD insulation layer.
Compared with the prior art, the invention has the following beneficial effects:
the connection among the A-phase primary coil, the B-phase primary coil and the C-phase primary coil and each main winding through the arrangement of the phase-shifting windings is realized, and the phase shifting is realized; and be provided with the regulation end tap on each phase-shifting winding and main winding, each position of adjusting the end tap is different for the coil turns that inserts are different in each phase-shifting winding or each main winding, thereby can adjust the phase-shifting angle as required, obtain the size of voltage after adjusting simultaneously shifting the phase, satisfy the needs of the voltage of different phase angles and range values, improved application scope, improved market competition.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a wiring diagram of a primary coil of phase A, a primary coil of phase B or a primary coil of phase C in a 12-pulse traction rectification phase-shifting dry-type transformer for an urban rail;
FIG. 2 is a schematic winding diagram of a primary coil of phase A, a primary coil of phase B or a primary coil of phase C in a 12-pulse traction rectification phase-shifting dry-type transformer for an urban rail;
fig. 3 is a coil winding diagram of a primary coil of phase a, a primary coil of phase B or a primary coil of phase C in a 12-pulse traction rectification phase-shifting dry-type transformer for an urban rail.
Reference numerals are as follows: a first line segment 1 ', a first minor segment 11, a second minor segment 12, a second line segment 2', a third minor segment 21, a fourth minor segment 22, a fifth minor segment 23, a sixth minor segment 24, a third line segment 3 ', and a fourth line segment 4'.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the functions of the invention clearer and easier to understand, the invention is further explained by combining the drawings and the detailed implementation mode:
as shown in fig. 1 to fig. 3, the present invention discloses a 12-pulse traction rectification phase-shifting dry-type transformer for urban rail, comprising: the transformer comprises an A-phase primary coil, a B-phase primary coil and a C-phase primary coil, wherein the A-phase primary coil is connected with a voltage UA, the B-phase primary coil is connected with a voltage UB, the C-phase primary coil is connected with a voltage UC, the phase difference between UA and UB is 120 degrees, and the phase difference between UC and UA is 120 degrees; the A-phase primary coil includes: the first main winding is connected with the first phase-shifting winding, and the joint of the first main winding and the first phase-shifting winding is a first joint; the B-phase primary coil includes: the second main winding is connected with the second phase-shifting winding, and a second contact point is arranged at the joint of the second main winding and the second phase-shifting winding; the C-phase primary coil includes: the third main winding is connected with the third phase-shifting winding, and a third joint is formed at the joint of the third main winding and the third phase-shifting winding; the first joint is connected to one end of the second main winding, which is far away from the second phase-shifting winding; the second joint is connected to one end of the third main winding, which is far away from the third phase-shifting winding; the third joint is connected to one end of the first main winding, which is far away from the first phase-shifting winding.
The A-phase primary coil, the B-phase primary coil and the C-phase primary coil each include: the phase-shifting winding comprises a first line segment 1 ', a second line segment 2 ', a third line segment 3 ' and a fourth line segment 4 ', wherein the first line segment 1 ', the second line segment 2 ' and the fourth line segment 4 ' are sequentially arranged from low to high, a space is reserved between the first line segment 1 ' and the second line segment 2 ', the first line segment 1 ' is connected with the second line segment 2 ', a third line segment 3 ' is wound outside one end, close to the fourth line segment 4 ', of the second line segment 2 ', the joint between the second line segment 2 ' and the third line segment 3 ' is a first joint, a second joint or a third joint, distances are reserved between the third line segment 3 ' and the fourth line segment 2 ' and the fourth line segment 4 ', the third line segment 3 ' and the fourth line segment 4 ' form a first phase-shifting winding, a second phase-shifting winding and a third phase-shifting winding, and the first line segment 1 ' and the second line segment 2 ' form a first main winding, a second main winding and a third main winding. The first line segment 1 'is provided with a segment of 3 ends, the second line segment 2' is provided with 2 ends, and when each circle of coil of the main winding needs to be used, the 3 ends of the first line segment 1 'are connected with the 2 ends of the second line segment 2'. The third line section 3 'is provided with a section of 3 ends, the fourth line section 4' is provided with 2 ends, and when each circle of coil of the phase-shifting winding needs to be used, the 3 ends of the third line section 3 'are connected with the 2 ends of the fourth line section 4'.
The first line segment 1 'and the fourth line segment 4' each include: the first small section 11 and the second small section 12, the outer ends of the first small section 11 and the second small section 12 are both wire-out ends, the inner end of the first small section 11 is connected with the inner end of the second small section 12 without interruption, and the first small section 11 is positioned below the second small section 12.
The third segment 3' includes: the third small section 21, the fourth small section 22, the fifth small section 23, and the sixth small section 24 are sequentially arranged from bottom to top, the inner end of the third small section 21 is connected with the inner end of the fourth small section 22 without a break, the outer end of the fourth small section 22 is connected with the outer end of the fifth small section 23 without a break, the inner end of the fifth small section 23 is connected with the inner end of the sixth small section 24 without a break, the outer end of the third small section 21 and the outer end of the sixth line segment are both wire-out ends, and the outer end of the sixth line segment is connected with the third line segment 3'.
The distance d1 between the first segment 1 ' and the second segment 2 ' is 40mm, the distance d2 between the fourth segment 22 and the fifth segment 23 is 40mm, the distance d3 between the sixth segment 24 and the third segment 3 ' is 40mm, the distance d4 between the first segment 11 and the second segment 12 in the first segment 1 ' is 20mm, the distance d5 between the third segment 21 and the fourth segment 22 is 20mm, the distance d6 between the fifth segment 23 and the sixth segment 24 is 20mm, and the distance d7 between the first segment 11 and the second segment 12 in the third segment 3 ' is 20 mm.
The whole A-phase primary coil, B-phase primary coil and C-phase primary coil are divided into 8 small sections substantially, the 8 small sections are wound respectively, and the distance of at least 20mm is arranged between the small sections, so that the electric field intensity is reduced, and the safety is improved. Moreover, d1, d2 and d3 are set to be 40mm, so that the distance between every two small segments is 40mm, the spacing distance is increased, the electric field intensity is further reduced, and the safety is further improved. The first line segment 1 ', the second line segment 2 ' and the fourth line segment 4 ' are all integrally wound in 21 layers, the sixth segment 24 in the second line segment 2 ' is wound into 16 layers, and the third line segment 3 ' is wound into 5 layers. The outer end of the second small section 12 in the first line segment 1 ' is the main winding 3 end, the joint of the 7 th turn coil in the 14 th layer and the 8 th turn coil in the second small section 12 in the first line segment 1 ' is the main winding 7 end, and the joint of the 1 st turn coil in the 18 th layer and the 6 th turn coil in the second small section 12 in the first line segment 1 ' is the main winding 5 end. The outer end of the first small section 11 in the second line segment 2 ' is the main winding 2 end, the joint of the 1 st turn coil in the 15 th layer and the 2 nd turn coil in the first small section 11 in the second line segment 2 ' is the main winding 6 end, and the joint of the 2 nd turn coil in the 18 th layer and the 3 rd turn coil in the first small section 11 in the second line segment 2 ' is the main winding 4 end. The outer end of the third line segment 3 'is the phase-shifting winding 3 end, the inner end of the third line segment 3' in the 17 th layer is connected with the sixth section 24 to form the B0 end, the joint of the 1 st turn coil and the 2 nd turn coil in the 18 th layer in the third line segment 3 'is the phase-shifting winding 7 end, and the joint of the 19 th layer and the 20 th layer in the third line segment 3' is the phase-shifting winding 5 end. The outer end of the first small section 11 in the fourth line section 4 ' is a phase-shift winding 2 end, the joint of the 19 th layer and the 20 th layer in the first small section 11 in the fourth line section 4 ' is the phase-shift winding 4 end, and the joint of the 1 st turn coil and the 2 nd turn coil in the 18 th layer in the first small section 11 in the fourth line section 4 ' is the phase-shift winding 6 end. The phase-shifting angle and the magnitude of the voltage after phase shifting can be adjusted by adjusting the ends 2, 3, 4, 5 and 6 using the main winding and the ends 2, 3, 4, 5 and 6 using the phase-shifting winding.
The outer surrounding of A phase primary coil, B phase primary coil and C phase primary coil has outer positioning layer, and the inner surrounding of A phase primary coil, B phase primary coil and C phase primary coil has inner positioning layer, and inner positioning layer and outer positioning layer all include: the glass fiber net layer is wound with the positioning belt. Interior location layer and outer location layer all use glass silk net check layer, avoid using whole block type insulated paper among the prior art and lead to the bubble to form the bubble in the pouring layer, avoided the incident that leads to overheated short circuit because of the bubble exists to take place.
The positioning belt is a glass fiber cloth belt. The positioning belt is wound outside the glass fiber mesh layer to shape the glass fiber mesh layer.
The glass fiber mesh layer is formed by winding at least two glass fiber meshes, the joint of two adjacent glass mesh meshes is a lap joint, all lap joints are arranged in a staggered mode, namely the connecting line of the adjacent lap joints does not pass through the axial lead of the whole coil, and the length of the lap joint is 10 mm. The overlapping of the lap joints caused by the fact that all the lap joints are in one radial direction of the whole coil is avoided, the phenomenon that the coil width-wise size formed by winding is greatly changed due to the fact that the lap joints are overlapped in the radial direction is avoided, the width-wise size is basically unchanged, and the appearance is guaranteed to be preset.
The method is implemented in the process of winding the A-phase primary coil, the B-phase primary coil and the C-phase primary coil according to the following steps: s1, winding a fourth line segment 4'; s2, leading out a first adjusting end tap 9 (namely, the 2, 4 and 6 ends of the phase-shifting winding) on the fourth line segment 4'; s3, winding the sixth small section 24 in the second line segment 2'; s4, winding a third line segment 3'; s5, welding the joint of the sixth small segment 24 and the third segment 3' to form a B0 tap; and S6, leading out a second adjusting end tap (namely, 3, 5 and 7 ends of the phase-shifting winding) on the third line segment 3'. Because the phase-shift winding is short, in order to avoid influencing the tap in the winding process, the fourth wire section 4' is wound, the first adjusting end tap is led out firstly, and then the sixth small section 24 is wound, so that the main winding is prevented from influencing the leading-out of the first adjusting end tap.
The DMD insulating layers are wound outside the first adjusting end tap, the second adjusting end tap and the B0 tap, and the polyester film insulating layers are wound outside the DMD insulating layers. As the taps penetrate out from the layers, a DMD insulating layer of 0.25mm and a four-layer polyester film insulating layer are required for insulation, and the safety is ensured.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. The utility model provides a 12 pulse wave traction rectification phase shift dry-type transformer for urban rail which characterized in that includes: the A-phase primary coil, the B-phase primary coil and the C-phase primary coil are connected with a voltage UAThe primary coil of phase B is connected with a voltage UBThe C-phase primary coil is connected with a voltage UC，UAAnd UBPhase difference of 120 DEG and UCAnd UAThe phase difference is 120 degrees;
the A-phase primary coil includes: the first main winding is connected with the first phase-shifting winding, and the joint of the first main winding and the first phase-shifting winding is a first joint;
the B-phase primary coil includes: the second main winding is connected with the second phase-shifting winding, and a second joint is arranged at the joint of the second main winding and the second phase-shifting winding;
the C-phase primary coil includes: the third main winding is connected with the third phase-shifting winding, and a third joint is formed at the joint of the third main winding and the third phase-shifting winding;
the first joint is connected to one end of the second main winding, which is far away from the second phase-shifting winding; the second joint is connected to one end of the third main winding, which is deviated from the third phase-shifting winding; the third junction is connected to an end of the first main winding that is remote from the first phase shift winding.
2. The urban rail 12-pulse traction rectification phase-shifting dry-type transformer according to claim 1, wherein the phase A primary coil, the phase B primary coil and the phase C primary coil each comprise: the phase-shifting winding comprises a first line segment, a second line segment, a third line segment and a fourth line segment, wherein the first line segment, the second line segment and the fourth line segment are sequentially arranged from low to high, a space is formed between the first line segment and the second line segment, the first line segment is connected with the second line segment, the third line segment is wound outside one end, close to the fourth line segment, of the second line segment, the joint of the second line segment and the third line segment is a first joint, a second joint or a third joint, the third line segment and the second line segment have distances to the fourth line segment, the third line segment and the fourth line segment form a first phase-shifting winding, a second phase-shifting winding and a third phase-shifting winding, and the first line segment and the second line segment form a first main winding, a second main winding and a third main winding.
3. The urban rail 12-pulse traction rectification phase-shifting dry-type transformer according to claim 2, wherein the first line segment and the fourth line segment each comprise: the first small section and the second small section are both wire-out ends, the inner end of the first small section is connected with the inner end of the second small section without interruption, and the first small section is positioned below the second small section.
4. The urban rail 12-pulse traction rectification phase-shifting dry-type transformer according to claim 3, wherein the third line segment comprises: the third minor segment, the fourth minor segment, fifth minor segment and sixth minor segment, the third minor segment, the fourth minor segment, fifth minor segment and sixth minor segment set gradually by supreme down, third minor segment inner is connected with fourth minor segment inner is uninterrupted, fourth minor segment outer end and fifth minor segment outer end are uninterrupted to be connected, fifth minor segment inner and sixth minor segment inner are uninterrupted to be connected the section, third minor segment outer end and sixth line segment outer end all are the leading-out terminal, the sixth line segment outer end with the third line segment be connected.
5. The 12-pulse traction, rectification and phase-shifting dry-type transformer for the urban rail as claimed in claim 4, wherein the distance d1 between the first and second line segments is 40mm, the distance d2 between the fourth and fifth segments is 40mm, the distance d3 between the sixth and third line segments is 40mm, the distance d4 between the first and second segments in the first line segment is 20mm, the distance d5 between the third and fourth segments is 20mm, the distance d6 between the fifth and sixth segments is 20mm, and the distance d7 between the first and second segments in the third line segment is 20 mm.
6. The urban rail 12-pulse traction rectification phase-shifting dry-type transformer according to claim 5, wherein an outer positioning layer is wound outside the A-phase primary coil, the B-phase primary coil and the C-phase primary coil, an inner positioning layer is wound inside the A-phase primary coil, the B-phase primary coil and the C-phase primary coil, and the inner positioning layer and the outer positioning layer each comprise: the glass fiber net layer is wound with the positioning belt.
7. The urban rail 12-pulse traction rectification phase-shifting dry-type transformer according to claim 6, wherein the positioning tapes are glass fiber cloth tapes.
8. The 12-pulse traction rectification phase-shifting dry-type transformer for the urban rail according to claim 7, wherein the glass fiber mesh layer is formed by winding at least two glass fiber meshes, the joint of two adjacent glass fiber mesh meshes is an overlapping joint, all the overlapping joints are arranged in a staggered mode, and the length of the overlapping joint is 10 mm.
9. The urban rail 12-pulse traction rectification phase-shifting dry-type transformer according to claim 8, wherein the winding of the A-phase primary coil, the B-phase primary coil and the C-phase primary coil is performed according to the following steps:
s1, winding a fourth line segment;
s2, leading out a first adjusting end tap on the fourth line segment;
s3, winding a sixth small section in the second line segment;
s4, winding a third line segment;
s5, welding the joint of the sixth small section and the third line section to form a B0 tap;
and S6, leading out a second adjusting end tap on the third line segment.
10. The 12-pulse traction rectification phase-shifting dry-type transformer for the urban railway according to claim 9, wherein the first adjusting end tap, the second adjusting end tap and the B0 tap are wound with DMD insulating layers, and the DMD insulating layers are wound with polyester film insulating layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210516913.3A CN114758872A (en) | 2022-05-12 | 2022-05-12 | 12-pulse traction rectification phase-shifting dry-type transformer for urban rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210516913.3A CN114758872A (en) | 2022-05-12 | 2022-05-12 | 12-pulse traction rectification phase-shifting dry-type transformer for urban rail |
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|---|---|
| CN114758872A true CN114758872A (en) | 2022-07-15 |
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|---|---|---|---|
| CN202210516913.3A Pending CN114758872A (en) | 2022-05-12 | 2022-05-12 | 12-pulse traction rectification phase-shifting dry-type transformer for urban rail |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6340851B1 (en) * | 1998-03-23 | 2002-01-22 | Electric Boat Corporation | Modular transformer arrangement for use with multi-level power converter |
| JP2008278715A (en) * | 2007-05-07 | 2008-11-13 | Fuji Electric Systems Co Ltd | Parallel 18-pulse rectifier circuit |
| CN101635198A (en) * | 2009-06-30 | 2010-01-27 | 东莞市光华实业有限公司 | 36-pulse high-power frequency conversion rectifier transformer |
| CN203232790U (en) * | 2013-05-08 | 2013-10-09 | 特变电工股份有限公司 | Converter transformer for polycrystalline silicon |
| CN109545527A (en) * | 2018-11-30 | 2019-03-29 | 合肥华威自动化有限公司 | A kind of stepless capacity regulation division phase-shifting transformer |
| CN109637791A (en) * | 2019-01-29 | 2019-04-16 | 重庆科新电气有限公司 | A kind of inverse Scott Transformer |
| CN110993292A (en) * | 2019-11-15 | 2020-04-10 | 朱祖乐 | Single 12-pulse rectifier transformer and equivalent multiphase rectifier unit formed by same |
| CN211125247U (en) * | 2019-12-26 | 2020-07-28 | 东莞立德电子有限公司 | 12-pulse self-coupling rectifier transformer |
-
2022
- 2022-05-12 CN CN202210516913.3A patent/CN114758872A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6340851B1 (en) * | 1998-03-23 | 2002-01-22 | Electric Boat Corporation | Modular transformer arrangement for use with multi-level power converter |
| JP2008278715A (en) * | 2007-05-07 | 2008-11-13 | Fuji Electric Systems Co Ltd | Parallel 18-pulse rectifier circuit |
| CN101635198A (en) * | 2009-06-30 | 2010-01-27 | 东莞市光华实业有限公司 | 36-pulse high-power frequency conversion rectifier transformer |
| CN203232790U (en) * | 2013-05-08 | 2013-10-09 | 特变电工股份有限公司 | Converter transformer for polycrystalline silicon |
| CN109545527A (en) * | 2018-11-30 | 2019-03-29 | 合肥华威自动化有限公司 | A kind of stepless capacity regulation division phase-shifting transformer |
| CN109637791A (en) * | 2019-01-29 | 2019-04-16 | 重庆科新电气有限公司 | A kind of inverse Scott Transformer |
| CN110993292A (en) * | 2019-11-15 | 2020-04-10 | 朱祖乐 | Single 12-pulse rectifier transformer and equivalent multiphase rectifier unit formed by same |
| CN211125247U (en) * | 2019-12-26 | 2020-07-28 | 东莞立德电子有限公司 | 12-pulse self-coupling rectifier transformer |
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