RU2549311C1 - Device for protection of track circuits and locomotive alss hardware against interferences in electrical rolling stock traction current (versions) - Google Patents

Device for protection of track circuits and locomotive alss hardware against interferences in electrical rolling stock traction current (versions) Download PDF

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Publication number
RU2549311C1
RU2549311C1 RU2014115608/11A RU2014115608A RU2549311C1 RU 2549311 C1 RU2549311 C1 RU 2549311C1 RU 2014115608/11 A RU2014115608/11 A RU 2014115608/11A RU 2014115608 A RU2014115608 A RU 2014115608A RU 2549311 C1 RU2549311 C1 RU 2549311C1
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RU
Russia
Prior art keywords
als
current
rolling stock
traction
locomotive
Prior art date
Application number
RU2014115608/11A
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Russian (ru)
Inventor
Евгений Вячеславович Горенбейн
Ефим Наумович Розенберг
Леонид Игоревич Стряпкин
Александр Константинович Табунщиков
Original Assignee
Открытое акционерное общество "Научно-исследовательский и проектно-конструкторский институт информатизации, автоматизации и связи на железнодорожном транспорте" (ОАО "НИИАС")
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Priority to RU2014115608/11A priority Critical patent/RU2549311C1/en
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Publication of RU2549311C1 publication Critical patent/RU2549311C1/en

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Abstract

FIELD: transport.
SUBSTANCE: this device comprises double-rail track circuits with impedance bonds while locomotive ALSS receiving coils are located at rolling stock. Said coils are located ahead of the mounted axle first axle, above the track, and connected in series. Parallel circuits tuned to track signalling current circuit and ALSS current circuit are connected in traction current circuit of rolling stock, between power hardware zero bus and current collecting mounted axles and/or in traction station reverse traction current bus. Power hardware control unit input is connected to output of the unit that defines the allowable interferences in ALSS channel. Input of said unit is connected with ALLS receiving coil output.
EFFECT: decreased interferences caused of rolling stock motion.
3 cl, 1 dwg

Description

The invention relates to railway automation and can be used in devices for protecting rail circuits and automatic locomotive signaling (ALS) from interference caused by traction current during operation of electric rolling stock.

A device for reducing noise levels during pulse regulation on DC electric locomotives is made by means of smoothing filters with reactors ("Control and Diagnostics System for Electric Train EP10" edited by S.V. Pokrovsky - M., Intekst, 2009, p.19-21 ) The known technical solution does not provide the required reduction in interference levels at the operating frequencies of rail circuits and ALS.

The closest in technical essence is the arrangement of double-strand rail circuits with choke transformers, which perform the function of protecting the transceiver equipment from interference in the traction current with normalized asymmetry of the rail line, and a certain connection and arrangement of locomotive receiving coils of the ALS on an electrically rolling stock in front of the first axle of the wheel pair above the rails threads, providing compensation for interference in traction current (Yu.A. Kravtsov. "Systems of railway automation and telemechanics", M., Transport, 1996, p.4 7-48, 144-145).

Such a technical tool, adopted as a prototype, is the main means of protecting rail circuits and ALS from the effects of noise created in the traction current of electric rolling stock of direct and alternating currents.

The disadvantage of the prototype, as well as the aforementioned analogue, is the inability to selectively suppress interference at the operating frequencies of the currents of the rail circuit and ALS arising from the operation of electric rolling stock in case of asymmetry of the traction current.

The technical result, the achievement of which the proposed technical solution is aimed at, is to reduce the level of interference in rail circuits and the ALS channel arising from the movement of electric rolling stock.

The proposed technical solution can be implemented in three versions.

For the first option, the technical result is achieved by the fact that in the device for protecting the rail circuits and locomotive equipment of the ALS from the effects of interference in the traction current of the electric rolling stock containing double-strand rail circuits with throttle transformers on the way, and on the electric rolling stock located above the first axle of the wheelset over by rail threads locomotive receiving coils ALS, connected in series, according to the invention, in the circuit of the traction current flow on an electrically rolling composition between the zero force bus of new equipment and slip rings, serially connected parallel circuits are included, tuned to the signal frequency of the rail circuit and ALS current, while the output of the block for determining the permissible interference level in the ALS channel is connected to the input of the power equipment control unit, the input of which is connected to the output of the ALS receiving coils .

For the second option, the technical result is achieved by the fact that in the device for protecting the rail circuits and locomotive equipment of the ALS from the effects of interference in the traction current of the electric rolling stock, containing two-strand rail circuits with throttle transformers on the way, and on the electric rolling stock located above the first axle of the wheelset over with rail threads, locomotive receiving coils ALS, connected in series, according to the invention, are connected in series to the reverse traction current flow bus at the traction substation closely connected parallel circuits tuned to the frequencies of the signal current of the rail circuit and the current of the ALS.

For the third option, the technical result is achieved by the fact that in the device for protecting the rail circuits and locomotive equipment of the ALS from the effects of interference in the traction current of the electric rolling stock, containing two-strand rail circuits with throttle transformers on the way, and on the electric rolling stock located in front of the first axle of the wheelset over with rail threads locomotive receiving coils ALS, connected in series, according to the invention on an electrically rolling stock, in the circuit of the traction current between the zero force bus of new equipment and slip rings, and in a traction substation - in the reverse traction current flow bus, series-connected parallel circuits tuned to the frequencies of the signal current of the rail circuit and ALS current are connected, while the output of the determination unit is connected to the input of the control unit of power equipment of electric rolling stock permissible interference level in the channel, the input of which is connected to the output of the receiving coils of the ALS.

Technical solutions with the above options for the implementation of the proposed protection devices will reduce the number of failures and malfunctions in the operation of rail circuits and ALS and increase the safety of train traffic.

The drawing shows a diagram of a device for protecting rail circuits and locomotive equipment ALS from the effects of interference in the traction current of an electric rolling stock.

The device for protecting rail circuits and locomotive equipment of ALS from the effects of interference in the traction current of electric rolling stock contains on the way 1 two-strand rail circuits 2 with choke transformers 3, and on electric rolling stock 4 there are locomotive receiving coils ALS 5 located in front of the first axle of the wheel pair above the rail threads included in series. Parallel circuits 6 and 7 are installed in the traction current flow circuit on an electrically rolling stock, tuned to the operating frequencies of the signal current of the rail circuit and ALS current, and connected between the zero bus 8 of the power equipment 9 and the current collection wheel pairs 10. At the same time, to the input of the power control unit 11 the equipment is connected to the output of the block 12 for determining the permissible level of interference in the ALS channel, the input of which is connected to the output of the locomotive receiving coils 5 of the ALS. Parallel circuits 14 and 15 are installed in the busbar for the reverse traction current flowing at the traction substation 13, tuned to the operating frequencies of the signal current of the rail circuit and the ALS current.

The voltage from the traction substation 13 is supplied through the contact network 16 to the electric rolling stock 4, on which the traction current flows through the pantograph 19, the power equipment 9 and from the current collector wheel pairs 10 enter the rail circuits 2 and return to the traction substation 13. The interference from the traction current acts to a locomotive receiver 17 ALS and equipment 18 rail circuits.

To suppress noise arising from the traction current, parallel resonant circuits 6 and 7 are included in the circuits of its flow on electric rolling stock 4, and circuits 14 and 15 on the traction substation 13. The circuit is tuned to the operating frequencies of the signal current of the rail circuit and the ALS current.

For example, with DC electric traction and code auto-lock, the circuit tuning frequency is 50 and 25 Hz, and with AC electric traction and code auto-lock, 25 and 75 Hz. These circuits can be tuned to other frequencies of the signal current of rail circuits and ALS, operated on a specific section of the railway line.

Three circuit options are available:

- on a locomotive,

- at a traction substation,

- simultaneously on a locomotive and traction substation.

The inclusion of circuits only on a locomotive is primarily advisable for modern, more powerful electric locomotives with an asynchronous traction drive, creating an unacceptably high level of interference.

The inclusion of circuits only at the traction substation is advisable to suppress interference in areas with heavy traffic, where locomotives with asynchronous traction drive are absent.

The simultaneous inclusion of circuits on the locomotive and traction substation will provide protection against interference with all possible variants of train traffic with various series of locomotives.

A device for protecting rail circuits and locomotive equipment ALS from the effects of interference in the traction current of an electric rolling stock works as follows.

Parallel circuits at resonance frequencies have a very high resistance, and since they are connected in series to the traction current circuit, which contains interference from rolling stock electrical equipment, the interference level at these frequencies will decrease. Losses in the circuits should be minimal, since in this case their resistance tends to infinity and provides a minimum level of interference from the traction current at resonance frequencies.

To control the health of the above circuits on an electric rolling stock by determining whether the permissible interference level is exceeded, the device contains a block for determining the acceptable interference level in channel ALS 12, the input of which is connected to the output of locomotive receiving coils ALS 5. When the controlled levels at the input of locomotive receiver 17 ALS are exceeded, block 12 generates a command to change the operating mode of power equipment (reducing or disabling traction), which enters the power equipment control unit 11, which, in turn, leads to a decrease in the level of interference in the traction current, thereby preventing failures and malfunctions in the operation of rail circuits and ALS.

Claims (3)

1. A device for protecting rail circuits and locomotive equipment of ALS from the effects of interference in the traction current of electric rolling stock, containing two-strand rail circuits with throttle transformers on the path, and on electric rolling stock - locomotive receiving coils of the ALS located in front of the first axle of the wheel pair above the rail threads, included sequentially, characterized in that in the circuit of the traction current flow on the electric rolling stock between the zero bus of the power equipment and the current-collecting wheel pairs are included edovatelno parallel connected circuit tuned to the frequency of the signal current of the track circuit current and ALS, the entry to the power equipment control unit connected to the output determination unit allowable noise level in the channel ALS, whose input is connected to the output of receiver coils ALS.
2. A device for protecting rail circuits and locomotive equipment of ALS from the effects of interference in the traction current of electric rolling stock, containing two-strand rail circuits with choke transformers on the path, and on electric rolling stock - locomotive receiving coils of the ALS located in front of the first axle of the wheel pair above the rail threads, included in series, characterized in that in parallel with the reverse traction current flowing bus at the traction substation are connected parallel parallel circuits tuned to the frequencies ignalnogo current track circuit current and ALS.
3. Device for protecting rail circuits and locomotive equipment of ALS from the effects of interference in the traction current of electric rolling stock, containing two-strand rail circuits with choke transformers on the path, and on electric rolling stock - locomotive receiving coils of the ALS located in front of the first axle of the wheel pair above the rail threads, included sequentially, characterized in that on an electrically rolling stock in a circuit for a traction current between the zero tire of the power equipment and the current collection wheel pairs, and on the traction substations - in the reverse traction current bus - connected in parallel are parallel circuits tuned to the signal frequency of the rail circuit and ALS current, while the output of the unit for determining the permissible interference level in the ALS channel is connected to the input of the power equipment control unit of the electric rolling stock, the input of which is connected with the output of the receiving coils ALS.
RU2014115608/11A 2014-04-18 2014-04-18 Device for protection of track circuits and locomotive alss hardware against interferences in electrical rolling stock traction current (versions) RU2549311C1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1632847A1 (en) * 1988-02-29 1991-03-07 Ташкентский институт инженеров железнодорожного транспорта A device for transmitting code signs to a rail line
CN201077467Y (en) * 2007-09-17 2008-06-25 西安铁路局西安电务器材厂 High voltage asymmetric track circuit system and no-insulation frequency shifting electronic coding overlapped isolation box
RU94944U1 (en) * 2009-11-26 2010-06-10 Государственное образовательное учреждение высшего профессионального образования "Московский государственный университет путей сообщения" (МИИТ) Locomotive receiver of automatic locomotive signals signals for sections with electric ac ac
RU2394715C1 (en) * 2009-06-08 2010-07-20 Открытое Акционерное Общество "Российские Железные Дороги" Automatic locomotive signaling device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1632847A1 (en) * 1988-02-29 1991-03-07 Ташкентский институт инженеров железнодорожного транспорта A device for transmitting code signs to a rail line
CN201077467Y (en) * 2007-09-17 2008-06-25 西安铁路局西安电务器材厂 High voltage asymmetric track circuit system and no-insulation frequency shifting electronic coding overlapped isolation box
RU2394715C1 (en) * 2009-06-08 2010-07-20 Открытое Акционерное Общество "Российские Железные Дороги" Automatic locomotive signaling device
RU94944U1 (en) * 2009-11-26 2010-06-10 Государственное образовательное учреждение высшего профессионального образования "Московский государственный университет путей сообщения" (МИИТ) Locomotive receiver of automatic locomotive signals signals for sections with electric ac ac

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Кравцов Ю.А. и др. Системы железнодорожной автоматики и телемеханики. - М.: Транспорт, 1996, с. 146-147.. *

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