CN112757970A - Subway traction alternating current power supply system and control method - Google Patents
Subway traction alternating current power supply system and control method Download PDFInfo
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- CN112757970A CN112757970A CN202110033261.3A CN202110033261A CN112757970A CN 112757970 A CN112757970 A CN 112757970A CN 202110033261 A CN202110033261 A CN 202110033261A CN 112757970 A CN112757970 A CN 112757970A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M3/00—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/38—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from conductor rails
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Abstract
The invention provides a subway traction alternating current power supply system and a control method, which comprises the following steps: the system comprises a first distribution line, a reflux line, a contact network, a dynamic adjusting line branch, a static adjusting line branch, a dynamic adjusting line, a first steel rail, a static adjusting line and a second steel rail; the dynamic adjusting line branch is connected to the contact net, and the static adjusting line branch is connected to the contact net; the dynamic adjusting line branch is connected with the dynamic adjusting line, and the static adjusting line branch is connected with the static adjusting line; the reflux lines comprise a first reflux line and a second reflux line, the first reflux line is connected with the first steel rail, and the second reflux line is connected with the second steel rail; the alternating current power supply system is provided for the double-flow train, the running of the double-flow train under the alternating current working voltage is realized, and the safety and the reliability of power supply are ensured by adopting the interlocking mode control circuit.
Description
Technical Field
The invention relates to the technical field of power supply, in particular to a subway traction alternating-current power supply system and a control method.
Background
The rail transit is an important travel vehicle, so that efficient and convenient travel of people is realized, and the life quality of people is improved. The double-current system train is used as a new rail vehicle, and can be powered by adopting a direct current power supply mode and an alternating current power supply mode; the current rail transit adopts a direct current power supply, and the power supply requirement of a double-current train cannot be met.
Chinese patent document No. 201910008955.4, filing date 20190104, with patent names: a subway traction power supply system and a bidirectional converter device are provided. The subway traction power supply system comprises a substation alternating current bus and a substation direct current bus, wherein the substation direct current bus comprises a substation positive direct current bus and a substation negative direct current bus, the subway traction power supply system also comprises a bidirectional converter device, the bidirectional converter device comprises at least one set of converter modules, each set of converter module comprises a three-phase winding transformer, at least two first converter units arranged in parallel and at least two second converter units arranged in parallel, the high-voltage end of the three-phase winding transformer is connected with the substation alternating current bus, the first low-voltage end of the three-phase winding transformer is connected with the alternating current end of each first converter unit, the second low-voltage end of the three-phase winding transformer is connected with the alternating current end of each second converter unit, the positive direct current output end of each first converter unit is connected with the positive direct current output end of each second converter unit and then is connected with the substation positive direct current bus, and the negative direct current output end of each first current converting unit is connected with the negative direct current output end of each second current converting unit and then connected with the negative direct current bus of the substation.
The subway traction power supply system disclosed in the above document provides a dc power supply system after ac rectification, and a subway traction ac power supply system and method that can be used for a double-current train are not disclosed correspondingly.
Disclosure of Invention
The invention aims to provide a subway traction alternating current power supply system with high safety and reliability and a control method aiming at the defects in the prior art.
In order to solve the above problems, the present invention provides a subway traction ac power supply system comprising: the system comprises a first distribution line, a reflux line, a contact network, a dynamic adjusting line branch, a static adjusting line branch, a dynamic adjusting line, a first steel rail, a static adjusting line and a second steel rail;
the first distribution line includes: a second circuit breaker, a first isolating switch;
a second isolating switch is arranged on the dynamic adjusting line branch, and a third isolating switch is arranged on the static adjusting line branch; the dynamic adjusting line branch is connected to the contact net, and the static adjusting line branch is connected to the contact net; the dynamic adjusting line branch is connected with the dynamic adjusting line, and the static adjusting line branch is connected with the static adjusting line;
the reflux circuit comprises a first reflux branch and a second reflux branch, a fourth isolating switch is arranged on the first reflux branch, and a fifth isolating switch is arranged on the second reflux branch; the first return branch is connected with the first steel rail, and the second return branch is connected with the second steel rail.
Further, when the second disconnecting switch is in a closed state, the fourth disconnecting switch is in an open state; when the second isolating switch is in an off state, the fourth isolating switch is in an on state;
when the third isolating switch is closed, the fifth isolating switch is disconnected; and when the third isolating switch is in an off state, the fifth isolating switch is in an on state.
Further, the states of the second isolating switch and the fourth isolating switch are consistent; and the working states of the third isolating switch and the fifth isolating switch are consistent.
Further, still include: a busbar PT for measuring the voltage of the first busbar.
Further, still include: the high-voltage side of the three-phase to single-phase transformer is connected with the first bus, and the neutral line of the three-phase to single-phase transformer is connected with the second bus.
Further, the three-phase to three-phase transformer is provided with a balance compensation device, and the balance compensation device compensates power.
Further, still include: the three-phase current transformer is arranged between an alternating current bus of a substation and the low-voltage side of the three-phase to single-phase transformer and used for protecting a circuit.
Further, still include: the first circuit breaker is arranged between an alternating-current bus of the substation and a low-voltage side of the three-phase to single-phase transformer, and is used for cutting off power supply of the alternating-current bus of the substation.
The invention also provides a subway traction alternating current power supply control method, which is based on the subway traction alternating current power supply system, and when the subway traction alternating current power supply system supplies power, the second isolating switch is closed, and the fourth isolating switch is open; when the second isolating switch is in an off state, the fourth isolating switch is in an on state;
when the third isolating switch is closed, the fifth isolating switch is disconnected; and when the third isolating switch is in an off state, the fifth isolating switch is in an on state.
Further, when the subway traction alternating current power supply system supplies power, the states of the second isolating switch and the fourth isolating switch are consistent; and the working states of the third isolating switch and the fifth isolating switch are consistent.
The subway traction alternating-current power supply system and the control method provided by the invention provide an alternating-current power supply system for a double-current system train, and realize the operation of the double-current system train under the condition that the working voltage is the alternating-current power supply system.
When the subway traction alternating current power supply system supplies power, the second isolating switch is closed, and the fourth isolating switch is disconnected; when the second isolating switch is in an off state, the fourth isolating switch is in an on state; when the third isolating switch is closed, the fifth isolating switch is disconnected; when the third isolating switch is in an off state, the fifth isolating switch is in an on state, so that the subway traction alternating current power supply system only supplies power between the movable adjusting line and the first steel rail or only between the static adjusting line and the second steel rail when the subway traction alternating current power supply system operates, and when one line operates, the other line is off, namely an interlocking mode is adopted, and the safety and the reliability of power supply are ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of a subway traction AC power supply system according to the present invention;
fig. 2 is a schematic structural diagram of a subway traction ac power supply system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The reference numerals and components referred to in the drawings are as follows:
in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a schematic diagram of an overall structure of a subway traction ac power supply system according to the present invention. A subway traction ac power supply system comprising: the system comprises a substation alternating-current bus, a three-phase to single-phase transformer, a power supply line, a reflux line, a debugging line and a steel rail. Wherein, the three-phase to single-phase transformer is a step-up transformer. The low-voltage side of the three-phase to single-phase transformer is connected with an alternating-current bus of a substation, the high-voltage side of the three-phase to single-phase transformer is connected with a power supply line, a debugging line is connected with the power supply line, a steel rail is connected with a return line, and the return line is connected with a neutral line of the three-phase to single-phase transformer so as to form a closed loop.
Specifically, the voltage of the alternating-current bus of the substation is 10KV, the voltage of the low-voltage side of the three-phase to single-phase transformer is 10KV, and the voltage of the high-voltage side of the three-phase to single-phase transformer is 27.5 KV.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a subway traction ac power supply system according to the present invention. And a first breaker QF1, a three-phase current transformer TA1, a zero sequence current transformer TA2, a ground protection switch K and a live display device W are further arranged between the three-phase to single-phase transformer and the alternating current bus of the substation. The first circuit breaker QF1 is used for controlling the on-off of the power supply; the three-phase current transformer TA1 is used for disconnecting the alternating current bus of the substation and protecting the circuit when a line fails; when a fault current is generated on the line, the grounding protection switch K is automatically closed to ground the overcurrent and protect the line; the live display device W is used for displaying whether a line is connected or not; when the circuit is in electric shock or leakage fault, the secondary side of the zero sequence current transformer TA2 outputs zero sequence current, so that the equipment on the connected secondary circuit is protected (power supply is cut off, alarm and the like).
The three-phase single-phase transformer is internally provided with a balance compensation device 30 and a balance compensation device control cabinet 31. The problem of unbalanced power can be generated in the three-phase to single-phase transformer, the balance compensation device is used for compensating power, and the balance compensation power cabinet controls the balance compensation device to compensate the power of the three-phase to single-phase transformer according to the magnitude of the power unbalance in the transformer.
The power supply line includes a first bus bar, a first distribution line a1, and a bus monitoring branch a 2. The first distribution line a1 includes: a second circuit breaker QF2, a current transformer TA3 and a first isolating switch QS 1; the bus monitoring branch a2 includes: a bus PT100, a live display device W and a lightning arrester B. The three-phase single-phase transformer is connected with the first distribution line A1 through the first bus, so that obvious electrical sectioning points can be formed during equipment maintenance. Bus PT100 is connected on first bus, has the effect such as the voltage of measuring, monitoring first bus, still is connected with electrified display device W and arrester B on bus PT100, and electrified display device W is used for instructing whether bus PT100 normally works (below electrified display device B all is used for monitoring whether normally works with the electric components who connects with this, consequently no longer gives details), and arrester B is used for when the thunderbolt, and protection circuit (following lightning protection device's effect is with this the same, consequently no longer gives details). The second circuit breaker is connected with the first bus and used for controlling the on-off of the first distribution line A1; the current transformer TA3 is connected with a second breaker QF2 and is used for protecting the circuit when the line fails; the first isolating switch QS1 is connected with a current transformer TA3 and used for disconnecting a provided power supply from a contact network, so that an obvious disconnection point exists between the power supply and the contact network after power failure; an electrified display device W is arranged at each of the current transformer TA3, the second circuit breaker QF2 and the first disconnecting switch QS 1; the end of the first distribution line A1 is provided with an arrester B.
The contact net is connected with the positive tail end of the first distribution line A1, the dynamic adjusting line is connected to the contact net through a dynamic adjusting line branch B1, and the static adjusting line is connected to the contact net through a static adjusting line branch B2. And the movable adjusting line branch B1 is provided with a lightning arrester B and a second isolating switch QS2, and the static adjusting line is provided with a lightning arrester B and a third isolating switch QS 3. When the second isolating switch QS2 is open, the third isolating switch QS3 is closed; when the second isolating switch QS2 is closed, the third isolating switch QS3 is open, i.e., the second isolating switch QS2 and the third isolating switch QS3 are locked with each other.
Specifically, the working voltage of the static tuning line and the dynamic tuning line is 25 KV.
The return line includes a second bus bar, a first return branch C1, and a second return branch C2. The neutral line of the three-phase to single-phase transformer is connected to the second bus, the first return circuit C1 is connected to the second bus, and the second return circuit C2 is connected to the second bus. A fourth isolating switch QS4, a zero-sequence current transformer TA2 and an electrified display device W are arranged on the first return circuit C1; the second return circuit C2 is provided with a fifth isolating switch QS5, a zero sequence current transformer TA2 and an electrified display device W. When the state of the fourth isolating switch QS4 is open, the state of the fifth isolating switch QS5 is closed; when the fourth isolating switch QS4 is in a closed state, the fifth isolating switch QD5 is in an open state, i.e., the fourth isolating switch QS4 and the fifth isolating switch QS5 are locked with each other.
The state of the second isolating switch QS2 is consistent with the working state of the fourth isolating switch QS4, the working state of the third isolating switch QS3 is consistent with the working state of the fifth isolating switch QS5, namely the second isolating switch QS2 and the fourth isolating switch QS4 are mutually locked, and the third isolating switch QS3 and the fifth isolating switch QD5 are mutually locked. In any isolating switch and the second circuit breaker QF2, the isolating switch needs to be closed firstly, then the second circuit breaker QF2 needs to be closed, and then the second circuit breaker QF2 needs to be divided and the isolating switch needs to be further divided, namely the second circuit breaker QF2 is mutually locked with all isolating switches in the same loop. By the locking mode, the subway traction alternating-current power supply system can only supply power between the dynamic adjusting line and the first steel rail or between the static adjusting line and the second steel rail independently, when one line runs, the other running line is disconnected, and the safety and the reliability of power supply are ensured.
When a subway traction alternating current power supply system supplies power to a movable adjusting wire and a first steel rail, a fourth isolating switch QS4, a second isolating switch QS2, a first isolating switch QS1 and a second breaker QF2 are closed, and at the moment, the third isolating switch QS3 and a fifth isolating switch QS5 are disconnected in working state; when the power supply is stopped, the second circuit breaker QF2 is opened, and then the first disconnecting switch QS1, the second disconnecting switch QS2 and the fourth disconnecting switch QS4 are opened.
When a subway traction alternating current power supply system supplies power to a static adjusting line and a second steel rail, a fifth isolating switch QS5, a third isolating switch QS3, a first isolating switch QS1 and a second breaker QF2 are switched on, and at the moment, the working states of a fourth isolating switch QS4 and a second isolating switch QS2 are switched off; when the power supply is stopped, the second circuit breaker QF2 is opened, and then the first disconnecting switch QS1, the third disconnecting switch QS3 and the fifth disconnecting switch QS5 are opened.
The first steel rail is connected with the first backflow branch C1 through a wiring terminal D, the second steel rail is connected with the second backflow branch C1 through the wiring terminal D, and a port for connecting a direct-current power supply loop is formed in the wiring terminal D.
The invention provides a subway traction alternating current power supply method, which is characterized in that when a subway traction alternating current power supply system supplies power, a second isolating switch QS2 is closed, and a fourth isolating switch QS4 is open; when the second isolating switch QS2 is open, the fourth isolating switch QS4 is closed;
when the third isolating switch QS3 is closed, the fifth isolating switch QS5 is open; when the third isolating switch QS3 is open, the fifth isolating switch QS5 is closed.
The second isolating switch QS2 is in accordance with the state of the fourth isolating switch QS 4; the third isolating switch QS3 and the fifth isolating switch QS5 are in the same working state.
The invention provides a subway traction alternating current power supply system and a control method, which provide an alternating current power supply system for a double-current system train and realize the operation of the double-current system train under the condition that the working voltage is the alternating current power supply system; when the subway traction alternating current power supply system supplies power, the second isolating switch is closed, and the fourth isolating switch is disconnected; when the second isolating switch is in an off state, the fourth isolating switch is in an on state; when the third isolating switch is closed, the fifth isolating switch is disconnected; when the third isolating switch is in an off state, the fifth isolating switch is in an on state, so that the subway traction alternating current power supply system only supplies power between the movable adjusting line and the first steel rail or only between the static adjusting line and the second steel rail when the subway traction alternating current power supply system operates, and when one line operates, the other line is off, namely an interlocking mode is adopted, and the safety and the reliability of power supply operation are ensured.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and additions can be made without departing from the method of the present invention, and these modifications and additions should also be regarded as the protection scope of the present invention.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A subway traction ac power supply system, comprising: the system comprises a first distribution line, a reflux line, a contact network, a dynamic adjusting line branch, a static adjusting line branch, a dynamic adjusting line, a first steel rail, a static adjusting line and a second steel rail;
the first distribution line includes: a second circuit breaker, a first isolating switch;
a second isolating switch is arranged on the dynamic adjusting line branch, and a third isolating switch is arranged on the static adjusting line branch; the dynamic adjusting line branch is connected to the contact net, and the static adjusting line branch is connected to the contact net; the dynamic adjusting line branch is connected with the dynamic adjusting line, and the static adjusting line branch is connected with the static adjusting line;
the reflux circuit comprises a first reflux branch and a second reflux branch, a fourth isolating switch is arranged on the first reflux branch, and a fifth isolating switch is arranged on the second reflux branch; the first return branch is connected with the first steel rail, and the second return branch is connected with the second steel rail.
2. A subway traction ac power supply system as claimed in claim 1, wherein when said second disconnector is closed, said fourth disconnector is open; when the second isolating switch is in an off state, the fourth isolating switch is in an on state;
when the third isolating switch is closed, the fifth isolating switch is disconnected; and when the third isolating switch is in an off state, the fifth isolating switch is in an on state.
3. A metro traction ac power supply system according to claim 1, wherein when the metro traction ac power supply system supplies power, the state of the second isolator switch is consistent with the state of the fourth isolator switch; and the working states of the third isolating switch and the fifth isolating switch are consistent.
4. A subway traction ac power supply system as claimed in claim 1, further comprising: a busbar PT for measuring the voltage of the first busbar.
5. A subway traction AC power supply system as claimed in claim 4, further comprising: the high-voltage side of the three-phase to single-phase transformer is connected with the first bus, and the neutral line of the three-phase to single-phase transformer is connected with the second bus.
6. A metro traction AC power supply system according to claim 5, wherein said three phase change three phase transformer is provided with a balance compensation device for compensating power.
7. A subway traction AC power supply system as claimed in claim 5, further comprising: the three-phase current transformer is arranged between an alternating current bus of a substation and the low-voltage side of the three-phase to single-phase transformer and used for protecting a circuit.
8. A subway traction AC power supply system as claimed in claim 5, further comprising: the first circuit breaker is arranged between an alternating-current bus of the substation and a low-voltage side of the three-phase to single-phase transformer, and is used for cutting off power supply of the alternating-current bus of the substation.
9. A subway traction alternating current power supply control method, comprising the subway traction alternating current power supply system as claimed in claims 1-8, wherein when the subway traction alternating current power supply system supplies power, the second disconnecting switch is closed, and the fourth disconnecting switch is open; when the second isolating switch is in an off state, the fourth isolating switch is in an on state;
when the third isolating switch is closed, the fifth isolating switch is disconnected; and when the third isolating switch is in an off state, the fifth isolating switch is in an on state.
10. A metro traction ac power supply control method according to claim 9, wherein when the metro traction ac power supply system supplies power, the states of the second isolator switch and the fourth isolator switch are consistent; and the working states of the third isolating switch and the fifth isolating switch are consistent.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113844339A (en) * | 2021-11-04 | 2021-12-28 | 中车大同电力机车有限公司 | Train power supply assembly |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2825666A1 (en) * | 2001-06-06 | 2002-12-13 | Electricite De France | Direct electrical supply system, for urban transport rail vehicles, feeding low voltage power to rails which is picked up by current collectors associated with wheels electrically isolated from chassis |
| CN103950394A (en) * | 2014-03-25 | 2014-07-30 | 株洲变流技术国家工程研究中心有限公司 | Alternating current and direct current mixed traction power supply system with ice melting function |
| CN104022630A (en) * | 2014-04-29 | 2014-09-03 | 株洲变流技术国家工程研究中心有限公司 | Multifunctional hybrid traction power supply system and control method |
| CN104943567A (en) * | 2014-03-25 | 2015-09-30 | 株洲变流技术国家工程研究中心有限公司 | Tractive power supply system with double-current system for electrified railway and power supply method |
| CN106208112A (en) * | 2016-08-24 | 2016-12-07 | 株洲变流技术国家工程研究中心有限公司 | A kind of electric locomotive test wire balanced feeding system |
| US20170011070A1 (en) * | 2014-11-26 | 2017-01-12 | Crrc Qingdao Sifang Co., Ltd. | Method and device for automatically processing static test data of rail transit vehicle |
| CN207303696U (en) * | 2017-09-26 | 2018-05-01 | 天津电力机车有限公司 | A kind of city rail vehicle static debugging DC power system with converter system |
| CN109698496A (en) * | 2017-10-20 | 2019-04-30 | 株洲中车时代电气股份有限公司 | A kind of rail traffic tractive power supply system and control method |
| CN110635685A (en) * | 2019-10-27 | 2019-12-31 | 徐州和纬信电科技有限公司 | Wind energy conversion power supply device for urban rail tunnel |
| CN111478616A (en) * | 2019-01-04 | 2020-07-31 | 西安许继电力电子技术有限公司 | Subway traction power supply system and bidirectional converter device |
-
2021
- 2021-01-11 CN CN202110033261.3A patent/CN112757970A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2825666A1 (en) * | 2001-06-06 | 2002-12-13 | Electricite De France | Direct electrical supply system, for urban transport rail vehicles, feeding low voltage power to rails which is picked up by current collectors associated with wheels electrically isolated from chassis |
| CN103950394A (en) * | 2014-03-25 | 2014-07-30 | 株洲变流技术国家工程研究中心有限公司 | Alternating current and direct current mixed traction power supply system with ice melting function |
| CN104943567A (en) * | 2014-03-25 | 2015-09-30 | 株洲变流技术国家工程研究中心有限公司 | Tractive power supply system with double-current system for electrified railway and power supply method |
| CN104022630A (en) * | 2014-04-29 | 2014-09-03 | 株洲变流技术国家工程研究中心有限公司 | Multifunctional hybrid traction power supply system and control method |
| US20170011070A1 (en) * | 2014-11-26 | 2017-01-12 | Crrc Qingdao Sifang Co., Ltd. | Method and device for automatically processing static test data of rail transit vehicle |
| CN106208112A (en) * | 2016-08-24 | 2016-12-07 | 株洲变流技术国家工程研究中心有限公司 | A kind of electric locomotive test wire balanced feeding system |
| CN207303696U (en) * | 2017-09-26 | 2018-05-01 | 天津电力机车有限公司 | A kind of city rail vehicle static debugging DC power system with converter system |
| CN109698496A (en) * | 2017-10-20 | 2019-04-30 | 株洲中车时代电气股份有限公司 | A kind of rail traffic tractive power supply system and control method |
| CN111478616A (en) * | 2019-01-04 | 2020-07-31 | 西安许继电力电子技术有限公司 | Subway traction power supply system and bidirectional converter device |
| CN110635685A (en) * | 2019-10-27 | 2019-12-31 | 徐州和纬信电科技有限公司 | Wind energy conversion power supply device for urban rail tunnel |
Non-Patent Citations (2)
| Title |
|---|
| 王国英等: "交、直流混合牵引供电系统现场应用研究", 《铁道标准设计》 * |
| 贺江华等: "基于公用调试线的交直流牵引系统控制方案", 《电气化铁道》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113844339A (en) * | 2021-11-04 | 2021-12-28 | 中车大同电力机车有限公司 | Train power supply assembly |
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