CN205647270U - There is sub - powerstat of live - Google Patents
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- CN205647270U CN205647270U CN201620416714.5U CN201620416714U CN205647270U CN 205647270 U CN205647270 U CN 205647270U CN 201620416714 U CN201620416714 U CN 201620416714U CN 205647270 U CN205647270 U CN 205647270U
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
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- 238000010586 diagram Methods 0.000 description 6
- 230000005284 excitation Effects 0.000 description 3
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- 230000036772 blood pressure Effects 0.000 description 1
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Abstract
The utility model relates to a there is sub - powerstat of live belongs to electric automation device technical field. Including powerstat, a looks pressure regulating circuit, B looks pressure regulating circuit, C looks pressure regulating circuit, three AC input A, B, C and three interchange output U, V, W, the former limit of powerstat adopts the star to connect or the connection delta, and the three AC input A, B, the C that form insert the electric wire netting, and pressure regulating transformer low voltage side is every to be contained a main winding and one mutually and take tapped regulating winding, and its main winding adoption star meets the three interchange output U1 of formation, V1, W1 and star contact N. The utility model provides a there is sub - powerstat of live's advantage is: realize the on -load voltage regulation of transformer through contactless mode, under the prerequisite that realizes transformer output voltage stabilization, improved response speed, the reliability and maintainability of device.
Description
Technical field
This utility model relates to one load transformer with electronic voltage regulating, belongs to technical field of electric automation equipment.
Background technology
Transformer regulating generally has non-excitation pressure adjustment and on-load voltage regulation two ways.The disadvantage of non-excitation pressure adjustment is to carry
Load pressure regulation.Along with the fast development of national economy, user is the highest to the requirement of quality of voltage, non-excitation pressure adjustment transformation
Device can not meet user's requirement to quality of voltage.On-load voltage regulation utilizes load ratio bridging switch, loads electricity ensureing not cut off
In the case of stream, convert high voltage winding set of taps, change the high pressure number of turn and at any time voltage is adjusted, to be effectively improved electricity
Pressure quality.Chattering type load ratio bridging switch is significant to the reliability guaranteeing transformer on-load voltage regulating, but there is also
As the life-span is short, speed of action is slow, and maintenance workload is big, the problems such as fault rate is higher；And, most of on-load voltage regulation transformations
Device can not frequently regulate, and have can't be automatically adjusted, and response speed is also slow, does not catches up with the rhythm of change in voltage.Along with electricity
The development of power electronic technology, noncontacting switch is that the development of transformer on-load voltage regulating system structure proposes new direction.
The most electronic type loaded shunting switch of contactless load ratio bridging switch, load from a tap be transformed into another tap time be by
IGCT completes.Owing to thyristor switch speed is fast, on-off times unrestricted, regulator can be realized non-maintaining and without electricity
Arc quick voltage regulates, and fundamentally solves the problem that load ratio bridging switch electrical endurance is short.If contactless electronic beam switch exists
High voltage side of transformer carries out tap operation, needs electrical switch to have higher pressure voltage, and if changing into carrying out in low-pressure side
Tap operation, just has only to use low pressure electrical switch.
Summary of the invention
The purpose of this utility model be propose one have load transformer with electronic voltage regulating, to overcome the deficiency of prior art, by
Step down side realizes contactless tap mode to realize the on-load voltage regulation of transformator, meets realizing transformer output voltage
On the premise of the precision of voltage regulation, improve the response speed of device, reliability and maintainability.
The utility model proposes novel has load transformer with electronic voltage regulating, including adjustable transformer, A phase regulating circuit, B phase
Regulating circuit, C phase regulating circuit, three ac input ends A, B, C and three ac output ends U, V, W；
The former limit of described adjustable transformer uses star to connect or connection delta, and three ac input ends A, B, C being formed access electricity
Net, described adjustable transformer low-pressure side comprises a main winding and a tapped tap-changing windings of band, main winding mutually
Star is used to meet three ac output ends U1, V1, W1 of formation and star contact N；Two exchanges of described A phase regulating circuit are defeated
Go out end and be coupled with the ac output end U1 and ac output end U of described adjustable transformer low-pressure side A phase main winding, described
Two ac output ends of B phase regulating circuit to be coupled with the exchange of described adjustable transformer low-pressure side B phase main winding defeated
Go out to hold V1 and ac output end V, two ac output ends of described C phase regulating circuit to be coupled with described pressure regulation transformation
The ac output end W1 and ac output end W of device low-pressure side C phase main winding；Three ac input ends of A phase regulating circuit divide
It is not connected to three outfans of described adjustable transformer low-pressure side A phase tap-changing windings, three exchanges of B phase regulating circuit
Input is connected respectively to three outfans of described adjustable transformer low-pressure side B phase tap-changing windings, C phase regulating circuit
Three ac input ends are connected respectively to three outfans of described adjustable transformer low-pressure side C phase tap-changing windings；
Described A phase regulating circuit, B phase regulating circuit and C phase regulating circuit include respectively a single-phase series transformator,
One auto by pass switch and a friendship AC-AC converter, two ac output ends of described A phase regulating circuit are connected respectively to
The two ends of A phase single-phase series transformator output side winding, the parallel connection respectively of the input side winding two ends of A phase single-phase series transformator
To the two ends of A phase auto by pass switch, and being parallel to A respectively and intersect two ac output ends of AC-AC converter, A intersects and hands over
Three ac input ends of changer are connected respectively to three ac input ends of A phase regulating circuit；Described B phase pressure regulation electricity
Two ac output ends on road are connected respectively to the two ends of B phase single-phase series transformator output side winding, and B phase single-phase series becomes
The input side winding two ends of depressor are parallel to the two ends of B phase auto by pass switch respectively, and are parallel to B respectively and intersect alternation and change
Two ac output ends of device, B intersects three ac input ends of AC-AC converter and is connected respectively to three of B phase regulating circuit
Ac input end；Two ac output ends of described C phase regulating circuit are connected respectively to the output of C phase single-phase series transformator
The two ends of side winding, the input side winding two ends of C phase single-phase series transformator are parallel to the two of C phase auto by pass switch respectively
End, and be parallel to C respectively and intersect two ac output ends of AC-AC converter, C intersects three ac input ends of AC-AC converter
It is connected respectively to three ac input ends of C phase regulating circuit.
Above-mentioned have load transformer with electronic voltage regulating, and friendship AC-AC converter therein realizes multiple exchange and is input to the change of single phase ac output
Change, hand over AC-AC converter use many group controllable silicon switching modes or use rectification and inverting to realize multichannel AC to single phase ac
Conversion.
The advantage carrying transformer with electronic voltage regulating that has that the utility model proposes is: realize having of transformator by non-contact way
Voltage adjustment of on-load, realize transformer output voltage stable on the premise of, improve the response speed of device, reliability and can safeguard
Property.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams having load transformer with electronic voltage regulating that the utility model proposes.
In Fig. 1,1 is adjustable transformer, and 2 is single-phase series transformator, and 3 is auto by pass switch, and 4 is to hand over AC-AC converter.
Fig. 2 is one of circuit theory diagrams handing over AC-AC converter to use controllable silicon to switch in Fig. 1.
Fig. 3 is two of the circuit theory diagrams handing over AC-AC converter to use controllable silicon to switch in Fig. 1.
Detailed description of the invention
The utility model proposes has load transformer with electronic voltage regulating, its circuit theory diagrams as it is shown in figure 1, include adjustable transformer,
A phase regulating circuit, B phase regulating circuit, C phase regulating circuit, three ac input ends A, B, C and three exchange outputs
End U, V, W；
The former limit of described adjustable transformer uses star to connect or connection delta, and three ac input ends A, B, C being formed access electricity
Net, described adjustable transformer low-pressure side comprises a main winding and a tapped tap-changing windings of band, main winding mutually
Star is used to meet three ac output ends U1, V1, W1 of formation and star contact N；Two exchanges of described A phase regulating circuit are defeated
Go out end and be coupled with the ac output end U1 and ac output end U of described adjustable transformer low-pressure side A phase main winding, described
Two ac output ends of B phase regulating circuit to be coupled with the exchange of described adjustable transformer low-pressure side B phase main winding defeated
Go out to hold V1 and ac output end V, two ac output ends of described C phase regulating circuit to be coupled with described pressure regulation transformation
The ac output end W1 and ac output end W of device low-pressure side C phase main winding；Three ac input ends of A phase regulating circuit divide
It is not connected to three outfans of described adjustable transformer low-pressure side A phase tap-changing windings, three exchanges of B phase regulating circuit
Input is connected respectively to three outfans of described adjustable transformer low-pressure side B phase tap-changing windings, C phase regulating circuit
Three ac input ends are connected respectively to three outfans of described adjustable transformer low-pressure side C phase tap-changing windings；
Described A phase regulating circuit, B phase regulating circuit and C phase regulating circuit include respectively a single-phase series transformator,
One auto by pass switch and a friendship AC-AC converter, two ac output ends of described A phase regulating circuit are connected respectively to
The two ends of A phase single-phase series transformator output side winding, the parallel connection respectively of the input side winding two ends of A phase single-phase series transformator
To the two ends of A phase auto by pass switch, and being parallel to A respectively and intersect two ac output ends of AC-AC converter, A intersects and hands over
Three ac input ends of changer are connected respectively to three ac input ends of A phase regulating circuit；Described B phase pressure regulation electricity
Two ac output ends on road are connected respectively to the two ends of B phase single-phase series transformator output side winding, and B phase single-phase series becomes
The input side winding two ends of depressor are parallel to the two ends of B phase auto by pass switch respectively, and are parallel to B respectively and intersect alternation and change
Two ac output ends of device, B intersects three ac input ends of AC-AC converter and is connected respectively to three of B phase regulating circuit
Ac input end；Two ac output ends of described C phase regulating circuit are connected respectively to the output of C phase single-phase series transformator
The two ends of side winding, the input side winding two ends of C phase single-phase series transformator are parallel to the two of C phase auto by pass switch respectively
End, and be parallel to C respectively and intersect two ac output ends of AC-AC converter, C intersects three ac input ends of AC-AC converter
It is connected respectively to three ac input ends of C phase regulating circuit.
Above-mentioned have load transformer with electronic voltage regulating, it is characterised in that wherein said friendship AC-AC converter realizes multiple exchange and is input to
The conversion of single phase ac output, hands over AC-AC converter use many group controllable silicon switching modes or use rectification and inverting to realize many
Road exchanges the conversion of single phase ac.
Fig. 1 show the circuit theory diagrams having load transformer with electronic voltage regulating that the utility model proposes.There is load electronic pressure regulating transformation
Device include adjustable transformer, A phase regulating circuit, B phase regulating circuit, C phase regulating circuit, three ac input end A, B,
C and three ac output ends U, V, W；The former limit of adjustable transformer (T) 1 uses star to connect or connection delta, three formed
Individual ac input end A, B, C access electrical network, and adjustable transformer (T) 1 low-pressure side comprises a main winding and a band mutually
Tapped tap-changing windings, its main winding uses star to meet three ac output ends U1, V1, W1 of formation and star contact N；A
Two ac output ends of phase regulating circuit are coupled with adjustable transformer (T) 1 low-pressure side A phase main winding ac output end
Two ac output ends of U1 and ac output end U, B phase regulating circuit are coupled with adjustable transformer (T) 1 low-pressure side B
Phase main winding ac output end V1 and ac output end V, two ac output ends of C phase regulating circuit are coupled with pressure regulation and become
Depressor (T) 1 low-pressure side C phase main winding ac output end W1 and ac output end W, three exchanges of A phase regulating circuit are defeated
Enter end and be connected respectively to three outfans of adjustable transformer (T) 1 low-pressure side A phase tap-changing windings, the three of B phase regulating circuit
Individual ac input end is connected respectively to three outfans of adjustable transformer (T) 1 low-pressure side B phase tap-changing windings, C phase pressure regulation
Three ac input ends of circuit are connected respectively to three outfans of adjustable transformer (T) 1 low-pressure side C phase tap-changing windings；
Every phase regulating circuit includes 2, auto by pass switch (K) 3 and of a single-phase series transformator (TS) respectively
Platform hands over AC-AC converter (CV) 4, and two ac output ends of A phase regulating circuit are connected respectively to this phase single-phase series transformator (TS)
The two ends of 2 output side winding, the input side winding two ends of this phase single-phase series transformator (TS) 2 are parallel to this phase certainly respectively
The two ends of dynamic by-pass switch (K) 3, and it is parallel-connected to two ac output ends of this crossing AC-AC converter (CV) 4 respectively,
Three ac input ends of this crossing AC-AC converter (CV) 4 are connected respectively to three ac input ends of A phase regulating circuit；B
Phase regulating circuit is identical with A phase regulating circuit with the mode of connection of C phase regulating circuit.
Hand over AC-AC converter (CV) 4 to realize multiple exchange and be input to the conversion of single phase ac output, hand over AC-AC converter (CV) 4
Use many group controllable silicon switching modes or use rectification and inverting to realize the multichannel AC conversion to single phase ac, when handing over
When changer (CV) 4 uses many group controllable silicon switching modes, its circuit theory diagrams are as shown in Figure 2 or shown in Fig. 3.Fig. 2
In, ac output end O2 can also be connected to ac input end I2 both can to have realized blood pressure lowering pressure regulation can also realize boosting
Pressure regulation.
Of the present utility model novel have carry transformer with electronic voltage regulating operation principle be: when certain cross streams input voltage is on the low side or inclined
Gao Shi, this crossing AC-AC converter exports an alternating voltage needing to compensate, is linked into this phase after series transformer boosts
In circuit so that output end voltage is kept stable in certain voltage range, thus realize there is the effect carrying voltage stabilizing.Work as device
When faults itself or line output load short circuits, hand over AC-AC converter locking and quit work, auto by pass switch quick-make
Realizing mechanical by-pass so that load is powered unaffected, regulating circuit is also protected with.When turnaround of unit is good or circuit is defeated
After output load short circuit disappears, auto by pass switch disconnects automatically, hands over AC-AC converter to automatically engage operation, on-load voltage regulation transformation
Device comes back to export automatic voltage regulation operational mode.
Of the present utility model novel have load transformer with electronic voltage regulating export low pressure (such as three-phase alternating current 380V) application time, adjust
Single-phase series transformator in volt circuit can be cancelled, and hands over the ac output end of AC-AC converter can directly be connected in series to pressure regulation transformation
In every phase main winding outlet line of device, thus reduce cost and loss.In three-phase alternating current 380V application, adjustable transformer
Low-pressure side star contact N can also as outfan thus formed three-phase and four-line output.
Adjustable transformer low voltage regulation winding in this utility model can also increase number of taps to realize higher precision
Voltage regulation result.When using controllable silicon switching mode to realize handing over alternation to change, often organizing antiparallel controllable silicon two ends can also and couple
The mechanical contact of tentaculum, after pressure regulation has switched, catalyst mechanical contact closes to reduce silicon controlled conduction loss.Work as tune
When pressure transformer low-pressure side main winding uses delta connection, the ac output end of every phase regulating circuit can be connected in series to often lead mutually
Winding branch road, it is also possible to the three-phase alternating current branch road exported after being connected in series to main winding connection delta.These broadly fall into equivalent transformation circuit.
Any equivalent transformation circuit made based on this utility model circuit, belongs to protection domain of the present utility model.
Claims (2)
1. one kind has load transformer with electronic voltage regulating, it is characterised in that this have load transformer with electronic voltage regulating include adjustable transformer,
A phase regulating circuit, B phase regulating circuit, C phase regulating circuit, three ac input ends A, B, C and three exchange outputs
End U, V, W；
The former limit of described adjustable transformer uses star to connect or connection delta, and three ac input ends A, B, C being formed access electricity
Net, described adjustable transformer low-pressure side comprises a main winding and a tapped tap-changing windings of band, main winding mutually
Star is used to meet three ac output ends U1, V1, W1 of formation and star contact N；Two exchanges of described A phase regulating circuit are defeated
Go out end and be coupled with the ac output end U1 and ac output end U of described adjustable transformer low-pressure side A phase main winding, described
Two ac output ends of B phase regulating circuit to be coupled with the exchange of described adjustable transformer low-pressure side B phase main winding defeated
Go out to hold V1 and ac output end V, two ac output ends of described C phase regulating circuit to be coupled with described pressure regulation transformation
The ac output end W1 and ac output end W of device low-pressure side C phase main winding；Three ac input ends of A phase regulating circuit divide
It is not connected to three outfans of described adjustable transformer low-pressure side A phase tap-changing windings, three exchanges of B phase regulating circuit
Input is connected respectively to three outfans of described adjustable transformer low-pressure side B phase tap-changing windings, C phase regulating circuit
Three ac input ends are connected respectively to three outfans of described adjustable transformer low-pressure side C phase tap-changing windings；
Described A phase regulating circuit, B phase regulating circuit and C phase regulating circuit include respectively a single-phase series transformator,
One auto by pass switch and a friendship AC-AC converter, two ac output ends of described A phase regulating circuit are connected respectively to
The two ends of A phase single-phase series transformator output side winding, the parallel connection respectively of the input side winding two ends of A phase single-phase series transformator
To the two ends of A phase auto by pass switch, and being parallel to A respectively and intersect two ac output ends of AC-AC converter, A intersects and hands over
Three ac input ends of changer are connected respectively to three ac input ends of A phase regulating circuit；Described B phase pressure regulation electricity
Two ac output ends on road are connected respectively to the two ends of B phase single-phase series transformator output side winding, and B phase single-phase series becomes
The input side winding two ends of depressor are parallel to the two ends of B phase auto by pass switch respectively, and are parallel to B respectively and intersect alternation and change
Two ac output ends of device, B intersects three ac input ends of AC-AC converter and is connected respectively to three of B phase regulating circuit
Ac input end；Two ac output ends of described C phase regulating circuit are connected respectively to the output of C phase single-phase series transformator
The two ends of side winding, the input side winding two ends of C phase single-phase series transformator are parallel to the two of C phase auto by pass switch respectively
End, and be parallel to C respectively and intersect two ac output ends of AC-AC converter, C intersects three ac input ends of AC-AC converter
It is connected respectively to three ac input ends of C phase regulating circuit.
There is load transformer with electronic voltage regulating the most as claimed in claim 1, it is characterised in that wherein said friendship AC-AC converter
Realize multiple exchange and be input to the conversion of single phase ac output, hand over AC-AC converter use many group controllable silicon switching modes or use whole
Stream and inverting realize the multichannel AC conversion to single phase ac.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620416714.5U CN205647270U (en) | 2016-05-10 | 2016-05-10 | There is sub - powerstat of live |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620416714.5U CN205647270U (en) | 2016-05-10 | 2016-05-10 | There is sub - powerstat of live |
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| Publication Number | Publication Date |
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| CN205647270U true CN205647270U (en) | 2016-10-12 |
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| CN201620416714.5U Active CN205647270U (en) | 2016-05-10 | 2016-05-10 | There is sub - powerstat of live |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054929A (en) * | 2017-12-30 | 2018-05-18 | 中国船舶重工集团公司第七〇二研究所 | A kind of converter plant of electric railway ground automatic neutral-section passing system |
| CN108146297A (en) * | 2017-12-30 | 2018-06-12 | 中铁第四勘察设计院集团有限公司 | A kind of electric railway ground electricity split-phase uninterruptible power supply system |
| CN108173421A (en) * | 2016-12-07 | 2018-06-15 | 中车株洲电力机车研究所有限公司 | A kind of subregion train cross phase-separating section uninterrupted power system |
| CN108189712A (en) * | 2017-12-30 | 2018-06-22 | 中铁第四勘察设计院集团有限公司 | A kind of electric railway ground flexible auto-passing neutral section system |
-
2016
- 2016-05-10 CN CN201620416714.5U patent/CN205647270U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108173421A (en) * | 2016-12-07 | 2018-06-15 | 中车株洲电力机车研究所有限公司 | A kind of subregion train cross phase-separating section uninterrupted power system |
| CN108173421B (en) * | 2016-12-07 | 2020-05-05 | 中车株洲电力机车研究所有限公司 | Train passing neutral section uninterrupted power system of section station |
| CN108054929A (en) * | 2017-12-30 | 2018-05-18 | 中国船舶重工集团公司第七〇二研究所 | A kind of converter plant of electric railway ground automatic neutral-section passing system |
| CN108146297A (en) * | 2017-12-30 | 2018-06-12 | 中铁第四勘察设计院集团有限公司 | A kind of electric railway ground electricity split-phase uninterruptible power supply system |
| CN108189712A (en) * | 2017-12-30 | 2018-06-22 | 中铁第四勘察设计院集团有限公司 | A kind of electric railway ground flexible auto-passing neutral section system |
| CN108054929B (en) * | 2017-12-30 | 2020-02-04 | 中国船舶重工集团公司第七一二研究所 | Current transformation device of electrified railway ground automatic neutral section passing system |
| CN108189712B (en) * | 2017-12-30 | 2020-02-11 | 中铁第四勘察设计院集团有限公司 | Ground flexible automatic neutral section passing system for electrified railway |
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Effective date of registration: 20180612 Address after: 100085 floor 107, 2 Building 1, seven street, Haidian District, Beijing. Patentee after: BEIJING QINGTE TECHNOLOGY CENTER (LIMITED PARTNERSHIP) Address before: 100085 room 111, 2 Building 1, seven street, Haidian District, Beijing. Co-patentee before: Liu Wenhua Patentee before: BEIJING SINEWELL CONVERTER TECHNOLOGY CO.,LTD. Co-patentee before: Liu Wenhui |
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Effective date of registration: 20221115 Address after: Room 310, 3rd Floor, Building 5, Yard 1, Nongda South Road, Haidian District, Beijing 100085 Patentee after: BEIJING SINEWELL CONVERTER TECHNOLOGY CO.,LTD. Address before: 100085 floor 107, 2 Building 1, seven street, Haidian District, Beijing. Patentee before: BEIJING QINGTE TECHNOLOGY CENTER (LIMITED PARTNERSHIP) |
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Effective date of registration: 20240910 Address after: 214000 Gaolang East Road, Huazhuang Street, Wuxi Economic Development Zone, Wuxi City, Jiangsu Province, China 999-8-B1-610 Patentee after: Wuxi Zhiyuan Guosheng Electric Co.,Ltd. Country or region after: China Address before: Room 310, 3rd Floor, Building 5, Yard 1, Nongda South Road, Haidian District, Beijing 100085 Patentee before: BEIJING SINEWELL CONVERTER TECHNOLOGY CO.,LTD. Country or region before: China |
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