CN203039366U - Alternating-current electrified railway continuous cophase power supply device - Google Patents
Alternating-current electrified railway continuous cophase power supply device Download PDFInfo
- Publication number
- CN203039366U CN203039366U CN 201220652363 CN201220652363U CN203039366U CN 203039366 U CN203039366 U CN 203039366U CN 201220652363 CN201220652363 CN 201220652363 CN 201220652363 U CN201220652363 U CN 201220652363U CN 203039366 U CN203039366 U CN 203039366U
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- China
- Prior art keywords
- power supply
- terminal
- transformer
- flow controller
- cophase
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- Expired - Fee Related
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- 101710013937 PFC1 Proteins 0.000 claims abstract description 9
- 230000003137 locomotive Effects 0.000 abstract description 10
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
Abstract
Disclosed in the utility model is an alternating-current electrified railway continuous cophase power supply device. Three phases (A, B and C) at a primary side of a transformer (T1) are connected with a high-voltage public power grid; two terminal alpha1 and alpha 2 at the secondary side of the transformer (T1) are respectively connected with two terminals a and b of a power flow controller (PFC) 1#; and the other terminals e and f of the PFC1# are respectively connected with an electrified railway overhead line system (T) and a steel rail (R). Besides, a PFC2# is connected between two terminals beta 1 and beta 2 at the secondary side of the transformer (T1) and the overhead line system (T) as well as the steel rail (R). According to the utility model, an electrical phase-splitting link of a traction power supply device can be completely avoided, so that the locomotive running is reliable and stable; and thus the provided continuous cophase power supply device is especially suitable for application to the heavy haul railway or the high-speed railway. The provided device serving as a national electrified railway traction power supply device has wide adaptability and can be implemented conveniently. And on the basis of cooperation with the existing cophase power supply scheme, continuous cophase power supplying at different stages can be realized; and the feasibility and economy are good.
Description
Technical field
The utility model belongs to electrified railway power supply equipment, specifically is electric railway traction electric supply installation supply power mode technical field.
Background technology
There is inadaptability in the existing traction power set of China when realizing high speed, heavy loading locomotive traction, mainly show:
At a high speed and heavy haul transport requirement motorcycle pantograph smoothly flowed continuously, and the existence of phase-splitting link, make on the pantograph electric current off and on, this has influenced the speed of service of locomotive greatly.The link of phase-splitting simultaneously also is one of link the weakest in the whole system.
Because the existence of electric phase-splitting link, when locomotive operation to power supply segment ends, must be through moving back series of complex operations such as level, outage, slide into next section and recover normal operation more item by item, this had both increased the complexity of locomotive operation, had seriously restricted the raising of locomotive running speed and the performance of tractive effort simultaneously again.
Existing cophase supply technical scheme can solve the electricity phase-splitting of traction substation place, the electric phase-splitting of living in of unresolved subregion.This programme can be cancelled subregion electric phase-splitting of living in simultaneously on electricity phase-splitting basis, cancellation traction substation place, form and connect cophase supply device, realizes conversion and the transition of two kinds of cophase supply schemes.
The utility model content
Above deficiency in view of prior art, the purpose of this utility model provides a kind of ac electrified railway with connecting the cophase supply scheme, this system can realize railway cophase supply completely and need not phase-splitting, and supply power voltage is stable, guarantee high speed, the stable operation of locomotive, be particularly useful for high speed, heavy haul railway use.
The purpose of this utility model is to realize by following means.
A kind of ac electrified railway connects cophase supply device, traction transformer (T1) adopts three-phase-biphase equilibrium transformer, former limit (the A of traction transformer (T1), B, C) the three high pressure utility networks that join, two the terminal α 1 in the inferior limit of traction transformer (T1), the a of α 2 and the first flow controller PFC1#, the b terminal links to each other respectively, the first flow controller PFC1# is two terminal e in addition, f connects contact nets in electrified railways (T) and rail (R) respectively, it is characterized in that, two terminal c of the second flow controller PFC2#, d and traction transformer time limit terminal β 1, β 2 links to each other respectively, described second two other terminal of flow controller PFC2# g, h connects contact line (T) and rail (R) respectively.
Adopt the utility model system, public high-voltage fence electric energy is delivered to contact line after two ports of its low-pressure side overlap flow controller (PFC1# and PFC2#) conversion by two after three-phase-two-phase traction transformer conversion, power to electric locomotive.Traction net voltage magnitude and phase place are adjustable.Adjacent traction substation can be realized adopting identical power voltage supply, cancels the subregion electric phase-splitting of living between the adjacent traction substation.
Compared with prior art, the beneficial effects of the utility model are:
One, all use the electric substation of the utility model devices all to export same single-phase voltage to power to electric locomotive on the railway line, need not to adopt on the whole like this railway line phase sequence by turns, the phase-splitting power supply, fundamentally avoided electric phase-splitting link comprehensively, make locomotive operation more reliable, more stable, be particularly useful for heavy duty, high-speed railway.
Two, the existing rail traction electric substation of China adopts three-phase-two phase transformer in a large number, increases flow controller on this basis and can constitute the utility model.Therefore, the utility model device has adaptability the most widely to the China railways traction power set, and it is convenient to implement.
Three, cancel the electricity phase-splitting of traction substation place by 1 cover flow controller in the existing cophase supply scheme, realize cophase supply.The technical program increases by 1 cover flow controller on existing cophase supply scheme basis can cancel subregion electric phase-splitting of living in, cooperates with existing cophase supply scheme and realizes stage by stage connecting cophase supply, and feasibility is stronger, better economy.
Description of drawings:
Fig. 1 is existing technology supply power mode figure.
Fig. 2 is the schematic diagram of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing and concrete enforcement the utility model is further described.
Fig. 2 illustrates, and a kind of embodiment of the present utility model is: a kind of ac electrified railway is with connecting power supply plan.Traction transformer is three-phase-two phase transformer (T1).Former limit (the A of transformer (T1), B, C) the three high pressure utility networks that join, two the terminal α 1 in the inferior limit of transformer (T1), the a of α 2 and flow controller PFC1#, the b terminal links to each other respectively, flow controller PFC1# is two terminal e in addition, f connects contact nets in electrified railways (T) and rail (R) respectively, flow controller PFC2# inserts transformer (T1) two terminal β 1 in inferior limit, between β 2 and contact line (T) and the rail (R), be specially: two terminal c of flow controller PFC2#, d and traction transformer time limit terminal β 1, β 2 links to each other respectively, two other terminal g, h connects contact nets in electrified railways (T) and rail (R) respectively, forms with connecting power supply plan.
Fig. 3 provides flow controller PFC1# and PFC2# internal structure schematic diagram.The power electronic device of forming SVG can be integral gate change transistor (IGCT) or insulated gate bipolar transistor (IGBT).
Claims (2)
1. an ac electrified railway connects cophase supply device, traction transformer (T1) adopts three-phase-biphase equilibrium transformer, former limit (the A of traction transformer (T1), B, C) the three high pressure utility networks that join, two the terminal α 1 in the inferior limit of traction transformer (T1), the a of α 2 and the first flow controller PFC1#, the b terminal links to each other respectively, the first flow controller PFC1# is two terminal e in addition, f connects contact nets in electrified railways (T) and rail (R) respectively, it is characterized in that, two terminal c of the second flow controller PFC2#, d and traction transformer time limit terminal β 1, β 2 links to each other respectively, described second two other terminal of flow controller PFC2# g, h connects contact line (T) and rail (R) respectively.
2. ac electrified railway according to claim 1 connects cophase supply device, it is characterized in that the SVG power electronic device of described flow controller can be integral gate change transistor (IGCT) or insulated gate bipolar transistor (IGBT).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220652363 CN203039366U (en) | 2012-12-03 | 2012-12-03 | Alternating-current electrified railway continuous cophase power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220652363 CN203039366U (en) | 2012-12-03 | 2012-12-03 | Alternating-current electrified railway continuous cophase power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203039366U true CN203039366U (en) | 2013-07-03 |
Family
ID=48691452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220652363 Expired - Fee Related CN203039366U (en) | 2012-12-03 | 2012-12-03 | Alternating-current electrified railway continuous cophase power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203039366U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102963272A (en) * | 2012-12-03 | 2013-03-13 | 西南交通大学 | Through cophase power supply system for alternating-current electrified railway |
| CN103407383A (en) * | 2013-07-29 | 2013-11-27 | 华北电力大学（保定） | Bidirectional interactive type DC (direct-current) traction power supply system base on new energy |
| CN105429176A (en) * | 2015-12-09 | 2016-03-23 | 西南交通大学 | Cophase supply power mutual feedback experiment system for electrified railways |
-
2012
- 2012-12-03 CN CN 201220652363 patent/CN203039366U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102963272A (en) * | 2012-12-03 | 2013-03-13 | 西南交通大学 | Through cophase power supply system for alternating-current electrified railway |
| CN102963272B (en) * | 2012-12-03 | 2014-11-05 | 西南交通大学 | Through cophase power supply system for alternating-current electrified railway |
| CN103407383A (en) * | 2013-07-29 | 2013-11-27 | 华北电力大学（保定） | Bidirectional interactive type DC (direct-current) traction power supply system base on new energy |
| CN105429176A (en) * | 2015-12-09 | 2016-03-23 | 西南交通大学 | Cophase supply power mutual feedback experiment system for electrified railways |
| CN105429176B (en) * | 2015-12-09 | 2017-11-03 | 西南交通大学 | A kind of electrified railway in-phase power supply power mutually presents experimental system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C14 | Grant of patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20151203 |
|
| EXPY | Termination of patent right or utility model |