CN105788830A - 200kVA36 pulse phase-shifting transformer - Google Patents
200kVA36 pulse phase-shifting transformer Download PDFInfo
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- CN105788830A CN105788830A CN201610338323.0A CN201610338323A CN105788830A CN 105788830 A CN105788830 A CN 105788830A CN 201610338323 A CN201610338323 A CN 201610338323A CN 105788830 A CN105788830 A CN 105788830A
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- phase
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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
- H01F27/30—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
-
- 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
- H01F27/02—Casings
- H01F27/025—Constructional details relating to cooling
-
- 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
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ac-Ac Conversion (AREA)
Abstract
The invention discloses a 200kVA36 pulse phase-shifting transformer. The 200kVA36 pulse phase-shifting transformer comprises a machine case, a bracket, a three-phase input primary winding adopting a triangle-shaped connection method, and secondary windings adopting a Y-shaped-based and phase-crossing Z connection method, wherein the bracket is arranged in the machine case; the primary winding and the secondary windings are arranged on the bracket and are located in the machine case; the secondary windings are divided into three groups and each group comprises 6 phase-shifting groups; phase-shifting angles are +25 degrees, +15 degrees, +5 degrees, -5 degrees, -15 degrees and -25 degrees respectively, and the angle difference between each two phase-shifting angle groups is 10 degrees; each phase is composed of a plurality of power units; each power unit is formed by connecting two coils in series; the two coils are wound on different core columns of an iron core respectively; the phase difference between adjacent phases of a three-phase secondary output phase is 10 degrees; and the secondary windings are used for carrying out phase shifting by adopting the Y-shaped-based and phase-crossing method, so that a central line with N is output, 36 pulse waves share the N, and the loading capability can reach 1:(7-8); and the loading capability is extremely strong, switching-on impact current can be borne and loaded, and the application range of the product is relatively wide.
Description
Technical field
The present invention relates to field transformer technology, refer in particular to a kind of 200kVA36 pulse wave phase-shifting transformer.
Background technology
International energy crisis; high-efficiency energy-saving technology and device systems is made to have had the urgency of demand; on the other hand; Power Electronic Technique occurs in that breakthrough; the inverter stage is developed into from commutation phase; for realizing the systems such as power adjustments tandem adjustment, the energy-conservation possibility providing the technology of realization, the eighties, converter technology started to find broad application in major industrialized country as a kind of power-saving technology.Frequency conversion not only plays energy-conserving action and also acts as the effect that precision process controls.It is wide that frequency converter timing has speed adjustable range, and adjusting speed accuracy is high, the advantages such as dynamic response is good.
The high voltage converter being provided simultaneously with the Premium Features such as vector controlled and energy feedback has been widely used in electric power, oil, petrochemical industry, metallurgical, chemical industry, municipal administration, supply water, mine, coloured, cement, weaving, papermaking, printing and dyeing, boats and ships, multiple industry such as railway, improve in environmental protection and energy saving consciousness, national policy promotes and under the driving of business economic interests, the breadth and depth of high-pressure frequency-conversion application is improved the most day by day, industry enters explosive growth period, 66% consumption of the generating total amount of China is on motor, potential market according to " motor speed adjusting technique Industrialization Way and the research of countermeasure " middle prediction high-pressure frequency-conversion is up to 101,500,000,000 yuan.
High voltage converter in the past, by device compositions such as silicon controlled rectifier, thyristor inversions, shortcoming is a lot, and harmonic wave is big, all has an impact electrical network and motor.In recent years, some new devices grown up will change this present situation, such as IGBT, IGCT, SGCT etc..The high voltage converter being made up of them, excellent performance, it is possible to achieve PWM inversion, even PWM rectification.Not only having harmonic wave little, power factor also has significant improvement.
Owing to high-voltage high-power frequency transformator every profession and trade at home obtains gratifying energy-saving effect, become one of ten major projects of National Development and Reform Committee's emphasis popularization, but its secondary windings of current high-power frequency conversion rectifier transformer all uses lengthened triangular connection phase shift, its load capacity is only capable of reaching 1:5, load capacity is more weak, it is impossible to bear load combined floodgate dash current.Therefore, it is necessary to current high-power frequency conversion rectifier transformer is improved.
Summary of the invention
In view of this, the present invention is directed to the disappearance of prior art existence, its main purpose is to provide a kind of 200kVA36 pulse wave phase-shifting transformer, and it can effectively solve existing high-power frequency conversion rectifier transformer and there is the problem that load capacity is weak, can not bear load combined floodgate impact electricity.
For achieving the above object, the present invention uses such as purgation technical scheme:
nullA kind of 200kVA36 pulse wave phase-shifting transformer，Including cabinet、Support、Use the three-phase input armature winding of star-star-delta connection Y-Y and use base Y shape and the secondary windings across the connection phase shift of phase Z，Support is arranged in cabinet，Armature winding and secondary windings are arranged on support and are positioned at cabinet，This secondary windings divides three groups，The most each group includes 6 phase shift groups，Its phase shifting angle is respectively+25 °、+15°、+5°、-5°、-15°、-25°，Each phase shift group angular difference 10 °，Often it is made up of several power cells，Each power cell is formed by two coil tandems，Two coils are respectively wound around on the stem stem that iron core is different，Three-phase secondary exports and differs 10 ° between adjacent phase，These 6 phase shift groups are controlled to trigger controllable silicon IGBT by three-phase difference time sequential pulse and obtain positive and negative each 18 pulse waves；This each phase shift group has 3 taps, and the most each group has 18 tap correspondences and is connected in the output lead row of support side, has three groups of output leads and arranges for connecting converter.
As a kind of preferred version, interior insulating cylinder it is arranged with outside the stem stem of described iron core, it is folded with silicon rubber bar between inwall and the lateral surface of iron core of this interior insulating cylinder, the lateral surface of this interior insulating cylinder is provided with I-shaped stay, high-tension coil and primary tap it is provided with on this I-shaped stay, primary tap connects high-tension coil, the periphery of this I-shaped stay is arranged with external insulation cylinder, the lateral surface of this external insulation cylinder is provided with outer pectination stay, being provided with low-voltage coil and secondary tap on this outer pectination stay, secondary tap connects low-voltage coil.
As a kind of preferred version, the top of described cabinet is provided with multiple air exhauster, and the lower end side of cabinet is provided with air inlet.
The present invention compared with prior art has clear advantage and beneficial effect, specifically, as shown from the above technical solution:
By utilize secondary windings use base Y shape with across the connection phase shift of phase Z so that the output of the present invention, with N center line, can realize 36 pulse waves altogether N, and load capacity is up to 1:7-8, and load capacity is extremely strong, can bear and load combined floodgate dash current, and products application is wider.
For more clearly illustrating architectural feature and effect of the present invention, next with specific embodiment below in conjunction with the accompanying drawings the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of cabinet in the preferred embodiments of the invention；
Fig. 2 is the fundamental diagram of the preferred embodiments of the invention；
Fig. 3 is the wiring schematic diagram of the preferred embodiments of the invention；
Fig. 4 is secondary phase-shift theory figure in the preferred embodiments of the invention；
Fig. 5 is in the preferred embodiments of the invention in a group ± wiring schematic diagram of 5 °；
Fig. 6 is 36 pulse wave vectogram in the preferred embodiments of the invention；
Fig. 7 is the internal structure front view of the preferred embodiments of the invention；
Fig. 8 is the internal structure rearview of the preferred embodiments of the invention；
Fig. 9 is the internal structure top view of the preferred embodiments of the invention；
Figure 10 is the internal structure side view of the preferred embodiments of the invention；
Figure 11 is the cross sectional plan view of the preferred embodiments of the invention coil；
Figure 12 to Figure 17 is a group ± 25 ° in the preferred embodiments of the invention, ± 15 ° and the phase shift phase angle schematic diagram of ± 5 ° of Vector modulation.
Accompanying drawing identifier declaration:
10, cabinet
11, air inlet
20, support
30, armature winding
40, secondary windings
50, iron core
51, stem stem
61, tap
70, air exhauster
101, interior insulating cylinder
102, silicon rubber bar
103, I-shaped stay
104, high-tension coil
105, primary tap
106, external insulation cylinder
107, outer pectination stay
108, low-voltage coil
109, secondary tap.
Detailed description of the invention
Refer to shown in Fig. 1 to Figure 11, that show the concrete structure of the preferred embodiments of the invention, including cabinet 10, support 20, use the three-phase input armature winding 30 of star-star-delta connection Y-Y and use base Y shape and the secondary windings 40 across the connection phase shift of phase Z.
This support 20 is arranged in cabinet 10, armature winding 30 and secondary windings 40 are arranged on support 20 and are positioned at cabinet 10, 30 points of three groups of this secondary windings, the most each group includes 6 phase shift groups, its phase shifting angle is respectively+25 °, + 15 °, + 5 °,-5 °,-15 °,-25 °, each phase shift group angular difference 10 °, often it is made up of several power cells, each power cell is formed by two coil tandems, two coils are respectively wound around on the different stem stem of iron core 50 51, three-phase secondary exports and differs 10 ° between adjacent phase, these 6 phase shift groups are controlled to trigger controllable silicon IGBT by three-phase difference time sequential pulse and obtain positive and negative each 18 pulse waves, thus obtain 36 pulse waves.This each phase shift group has 3 taps 61, and the most each group has 18 tap 61 correspondences and is connected in the output lead row of support 20 side, has three groups of output leads and arranges for connecting converter.As shown in Figure 6, wherein, base Y shape is divided into positive sequence connection method and backward connection method with across phase Z connecting mode.Owing to positive sequence joins method, its phase shifting angle is clock-wise fashion, referred to as negative angle；During backward connection method, its phase shifting angle is counter-clockwise, referred to as positive-angle, either positive sequence connection method, or backward connection method, is 0 ° during knot triangle, positive sequence connection can be referred to as-0 °, and inverted sequence connection method is referred to as+0 °.
We study the phase shift of a group, as shown in Figure 3 and Figure 4, a group, b group and the wiring schematic diagram of c group below, and each phase shift group has 3 taps, and there are 18 taps in a group, and transformator just has 54 taps to be supplied to converter connection.In a group ± 5 ° as a example by, its use base Y shape with across the connection phase shift of phase Z, as shown in Figure 4 and Figure 5, A post in figure, R phase in B post three-phase corresponding with C post, S-phase and T-phase, coil a ' 1a ' 11, the A post that coil b ' 1b ' 11 and coil c ' 1c ' 11 is connected in parallel to each other and correspondence is wrapped in iron core 50 respectively, on B post and C post, coil a ' 1a ' 11 connects with coil c11c1a, coil c11c1a is wrapped on C post, coil b ' 1b ' 11 connects with coil a11a1a, coil a11a1a is wrapped on A post, coil c ' 1c ' 11 connects with coil b11b1a, coil b11b1a is wrapped on B post；Coil a ' 6a ' 61, coil b ' 6b ' 61 and coil c ' 6c ' 61 are connected in parallel to each other and correspondence is wrapped on the A post of iron core 50, B post and C post respectively, coil a ' 6a ' 61 connects with coil b61b6a, coil b61b6a is wrapped on B post, coil b ' 6b ' 61 connects with coil c61c6a, coil c61c6a is wrapped on C post, coil c ' 6c ' 61 connects with coil a61a6a, and coil a61a6a is wrapped on A post.
In a group ± 25 °, ± 15 °, the phase shift phase angle of ± 5 ° of Vector modulation compositions is as shown in Fig. 6, Figure 12 to Figure 17, calculate modulus according to each phase shift angle, design its corresponding number of turn, ± 25 ° are respectively obtained by the algebraical sum of phase angle, ± 15 °, ± 5 ° of 6 groups of phase shift groups.Controlled to trigger controllable silicon IGBT by three-phase difference time sequential pulse and then obtain positive and negative each 18 pulse waves, thus obtain 36 pulse waves.
As shown in Fig. 1, Fig. 7 to Figure 11, for the structural representation of the present invention.Interior insulating cylinder 101 it is arranged with outside the stem stem 51 of described iron core 50, it is folded with silicon rubber bar 102 between inwall and the lateral surface of iron core 50 of this interior insulating cylinder 101, the lateral surface of this interior insulating cylinder 101 is provided with I-shaped stay 103, high-tension coil 104 and primary tap 105 it is provided with on this I-shaped stay 103, primary tap 105 connects high-tension coil 104, the periphery of this I-shaped stay 103 is arranged with external insulation cylinder 106, the lateral surface of this external insulation cylinder 106 is provided with outer pectination stay 107, it is provided with low-voltage coil 108 and secondary tap 109 on this outer pectination stay 107, secondary tap 109 connects low-voltage coil 108.And, the top of described cabinet 10 is provided with multiple air exhauster 70, and the lower end side of cabinet 10 is provided with air inlet 11, to form the effect of ventilation and heat.
Testing the load capacity of the present invention, its load capacity is up to 1:7-8, and load capacity is extremely strong, can bear load combined floodgate dash current.
The design focal point of the present invention is: by utilize secondary windings use base Y shape with across the connection phase shift of phase Z so that the output of the present invention, with N center line, can realize the common N of 36 pulse waves, load capacity is up to 1:7-8, load capacity is extremely strong, can bear load combined floodgate dash current, and products application is wider.
The above, it it is only presently preferred embodiments of the present invention, not the technical scope of the present invention is imposed any restrictions, therefore every any trickle amendment, equivalent variations and modification above example made according to the technical spirit of the present invention, all still fall within the range of technical solution of the present invention.
Claims (3)
- null1. a 200kVA36 pulse wave phase-shifting transformer，It is characterized in that: include cabinet、Support、Use the three-phase input armature winding of star-star-delta connection Y-Y and use base Y shape and the secondary windings across the connection phase shift of phase Z，Support is arranged in cabinet，Armature winding and secondary windings are arranged on support and are positioned at cabinet，This secondary windings divides three groups，The most each group includes 6 phase shift groups，Its phase shifting angle is respectively+25 °、+15°、+5°、-5°、-15°、-25°，Each phase shift group angular difference 10 °，Often it is made up of several power cells，Each power cell is formed by two coil tandems，Two coils are respectively wound around on the stem stem that iron core is different，Three-phase secondary exports and differs 10 ° between adjacent phase，These 6 phase shift groups are controlled to trigger controllable silicon IGBT by three-phase difference time sequential pulse and obtain positive and negative each 18 pulse waves；This each phase shift group has 3 taps, and the most each group has 18 tap correspondences and is connected in the output lead row of support side, has three groups of output leads and arranges for connecting converter.
- 200kVA36 pulse wave phase-shifting transformer the most according to claim 1, it is characterized in that: outside the stem stem of described iron core, be arranged with interior insulating cylinder, it is folded with silicon rubber bar between inwall and the lateral surface of iron core of this interior insulating cylinder, the lateral surface of this interior insulating cylinder is provided with I-shaped stay, high-tension coil and primary tap it is provided with on this I-shaped stay, primary tap connects high-tension coil, the periphery of this I-shaped stay is arranged with external insulation cylinder, the lateral surface of this external insulation cylinder is provided with outer pectination stay, it is provided with low-voltage coil and secondary tap on this outer pectination stay, secondary tap connects low-voltage coil.
- 200kVA36 pulse wave phase-shifting transformer the most according to claim 1, it is characterised in that: the top of described cabinet is provided with multiple air exhauster, and the lower end side of cabinet is provided with air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610338323.0A CN105788830A (en) | 2016-05-19 | 2016-05-19 | 200kVA36 pulse phase-shifting transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610338323.0A CN105788830A (en) | 2016-05-19 | 2016-05-19 | 200kVA36 pulse phase-shifting transformer |
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| Publication Number | Publication Date |
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| CN105788830A true CN105788830A (en) | 2016-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610338323.0A Pending CN105788830A (en) | 2016-05-19 | 2016-05-19 | 200kVA36 pulse phase-shifting transformer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452135A (en) * | 2016-11-10 | 2017-02-22 | 上海泓语电气技术有限公司 | Power distribution transformer rectifier |
| CN108199592A (en) * | 2017-12-19 | 2018-06-22 | 中国航天空气动力技术研究院 | The multi-modal rectification power circuit of high power DC electro-arc heater power supply |
| CN112289570A (en) * | 2020-10-28 | 2021-01-29 | 广东电网有限责任公司广州供电局 | Edge-extended triangular autotransformer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101098107A (en) * | 2006-06-28 | 2008-01-02 | 北京利德华福电气技术有限公司 | High-voltage frequency converter of power unit series |
| CN201048075Y (en) * | 2007-06-13 | 2008-04-16 | 常州特种变压器有限公司 | 18 pulse wave commutator transformer |
| 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 |
| CN102543399A (en) * | 2011-12-27 | 2012-07-04 | 昆明赛格迈电气有限公司 | Phase-shifting voltage-regulating method of three-phase dry-type rectifier transformer of short-wave transmitter power supply |
-
2016
- 2016-05-19 CN CN201610338323.0A patent/CN105788830A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101098107A (en) * | 2006-06-28 | 2008-01-02 | 北京利德华福电气技术有限公司 | High-voltage frequency converter of power unit series |
| CN201048075Y (en) * | 2007-06-13 | 2008-04-16 | 常州特种变压器有限公司 | 18 pulse wave commutator transformer |
| 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 |
| CN102543399A (en) * | 2011-12-27 | 2012-07-04 | 昆明赛格迈电气有限公司 | Phase-shifting voltage-regulating method of three-phase dry-type rectifier transformer of short-wave transmitter power supply |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452135A (en) * | 2016-11-10 | 2017-02-22 | 上海泓语电气技术有限公司 | Power distribution transformer rectifier |
| CN106452135B (en) * | 2016-11-10 | 2019-02-12 | 上海泓语电气技术有限公司 | Distribution transformer rectifier |
| CN108199592A (en) * | 2017-12-19 | 2018-06-22 | 中国航天空气动力技术研究院 | The multi-modal rectification power circuit of high power DC electro-arc heater power supply |
| CN112289570A (en) * | 2020-10-28 | 2021-01-29 | 广东电网有限责任公司广州供电局 | Edge-extended triangular autotransformer |
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Application publication date: 20160720 |