CN203039366U - Alternating-current electrified railway continuous cophase power supply device - Google Patents

Alternating-current electrified railway continuous cophase power supply device Download PDF

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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
Authority
CN
China
Prior art keywords
power supply
terminal
transformer
flow controller
cophase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220652363
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Chinese (zh)
Inventor
李群湛
解绍锋
贺建闽
舒泽亮
周福林
刘炜
陈民武
张丽艳
郭蕾
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Southwest Jiaotong University
Original Assignee
Southwest Jiaotong University
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Publication date
Application filed by Southwest Jiaotong University filed Critical Southwest Jiaotong University
Priority to CN 201220652363 priority Critical patent/CN203039366U/en
Application granted granted Critical
Publication of CN203039366U publication Critical patent/CN203039366U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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

A kind of ac electrified railway connects cophase supply device
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).
CN 201220652363 2012-12-03 2012-12-03 Alternating-current electrified railway continuous cophase power supply device Expired - Fee Related CN203039366U (en)

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

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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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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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