WO2020253081A1 - Pantographe et son procédé de commande, et locomotive électrique - Google Patents

Pantographe et son procédé de commande, et locomotive électrique Download PDF

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Publication number
WO2020253081A1
WO2020253081A1 PCT/CN2019/119077 CN2019119077W WO2020253081A1 WO 2020253081 A1 WO2020253081 A1 WO 2020253081A1 CN 2019119077 W CN2019119077 W CN 2019119077W WO 2020253081 A1 WO2020253081 A1 WO 2020253081A1
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WO
WIPO (PCT)
Prior art keywords
pantograph
pressure
bow
current system
catenary
Prior art date
Application number
PCT/CN2019/119077
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English (en)
Chinese (zh)
Inventor
唐颂歌
陈玉芬
金磊
Original Assignee
中车大同电力机车有限公司
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Filing date
Publication date
Application filed by 中车大同电力机车有限公司 filed Critical 中车大同电力机车有限公司
Publication of WO2020253081A1 publication Critical patent/WO2020253081A1/fr

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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
    • B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
    • B60L5/22—Supporting means for the contact bow
    • B60L5/28—Devices for lifting and resetting the collector
    • B60L5/32—Devices for lifting and resetting the collector using fluid pressure

Definitions

  • the present disclosure relates to the technical field of locomotives, in particular to a pantograph control method, a pantograph and an electric locomotive.
  • pantograph is installed on the roof of the electric locomotive and contacts the catenary to receive current to obtain the electric energy required for the operation of the electric locomotive.
  • pantographs are usually installed on the roof of electric locomotives, which makes the roof equipment complicated and has a high failure rate.
  • the purpose of the present disclosure is to provide a pantograph control method, a pantograph, and an electric locomotive, so as to overcome one or more problems caused by the limitations and defects of related technologies to at least a certain extent.
  • a pantograph control method including:
  • the valve plate of the pantograph is controlled according to the detected current system to adjust the flow rate of the compressed gas for lifting the bow to adjust the contact pressure between the pantograph and the catenary.
  • valve plate of the pantograph is controlled to adjust the flow rate of the compressed gas for lifting the bow according to the detected current mode, so as to adjust the pantograph and the contact
  • the contact pressure between the nets includes:
  • the flow rate of the compressed gas passing through the valve plate is kept unchanged, so as to keep the contact pressure between the pantograph and the catenary as the first pressure;
  • the valve plate When the detected current mode is the direct current mode, control the valve plate to increase the flow rate of the compressed gas for bow lifting, and make the contact pressure between the pantograph and the catenary a second pressure ;
  • the second pressure is greater than the first pressure
  • the valve plate of the pantograph is controlled to adjust the flow rate of compressed gas according to the detected current mode to adjust the pantograph and the contact After the contact pressure between the nets, the pantograph control method further includes:
  • a pantograph including:
  • the bow head has a sliding plate that can contact the contact net and receive flow
  • a current system detector for detecting the current system of the contact net
  • a controller connected to the current system detector, is used to control the valve plate to adjust the flow rate of the compressed gas for bow lifting according to the current system, so as to adjust the contact pressure between the sliding plate and the contact net.
  • the number of the sliding plates is four.
  • the bow raising assembly includes:
  • the hinge structure includes an upper arm and a lower arm rotatably connected with the upper arm, the upper arm is connected to the bow head, and the lower arm is connected to the base frame;
  • the driving member is arranged on the bottom frame and is used to drive the upper arm and the lower arm to rotate so as to control the bow head to raise or lower.
  • the side of the bottom frame is provided with a guide copper bar.
  • a copper stranded wire is connected between the upper arm and the lower arm.
  • an electric locomotive including the pantograph described in any one of the above.
  • Fig. 1 is a flowchart of a pantograph control method according to an embodiment of the present disclosure.
  • a structure When a structure is “on” another structure, it may mean that a certain structure is integrally formed on another structure, or that a certain structure is “directly” arranged on another structure, or that a certain structure is “indirectly” arranged on another structure through another structure.
  • the terms “a”, “a”, and “the” are used to indicate the presence of one or more elements/components/etc.; the terms “include” and “have” are used to indicate open-ended inclusion and mean In addition to the listed elements/components/etc., there may be additional elements/components/etc.
  • the terms “first” and “second” are only used as markers and are not limited to the number of objects.
  • pantographs are usually installed on the roof of electric locomotives so that the contact pressure between the pantograph and the catenary meets the current requirements of the pantograph.
  • pantograph poles There are many different types of pantograph poles.
  • the earth occupies the roof space of the electric locomotive, which makes the roof equipment layout complicated and high failure rate.
  • pantographs cannot replace each other, if a pantograph fails, the electric locomotive cannot continue to run. .
  • the present disclosure provides a pantograph control method, pantograph and electric locomotive.
  • the pantograph control method may include the following steps:
  • Step S110 Raise the pantograph so that the pantograph is in contact with the catenary and receives current, and the contact pressure between the pantograph and the catenary is the first pressure;
  • Step S120 detecting the current system of the contact net
  • step S130 the valve plate of the pantograph is controlled according to the detected current system to adjust the flow rate of the compressed gas for lifting the bow to adjust the contact pressure between the pantograph and the catenary.
  • the pantograph control method of the embodiment of the present disclosure firstly, the pantograph is raised so that the pantograph is in contact with the catenary and receives current; secondly, the current system (AC or DC) of the catenary is detected; and finally, According to the current system, the valve plate of the pantograph is controlled to adjust the air flow of the compressed gas for lifting the bow to adjust the contact pressure between the pantograph and the catenary. Because different current systems have different requirements for the contact pressure between the pantograph and the catenary, and this pantograph control method enables the pantograph to automatically adjust the pantograph and the catenary according to the current system of the catenary. The contact pressure of the pantograph enables the pantograph to receive current under a variety of current systems.
  • step S110 the pantograph is raised so that the pantograph is in contact with the catenary and receives current, and the contact pressure between the pantograph and the catenary is the first pressure.
  • the pantograph on the roof of the electric locomotive can contact the catenary and receive current after being raised, because different current systems (AC mode and DC mode) have different requirements for the contact pressure between the pantograph and the catenary. Specifically, the contact pressure in the AC mode is less than the contact pressure in the DC mode. At this time, the current system of the catenary can be assumed to be AC mode, and the contact pressure (first pressure) between the pantograph and the catenary is equal to The corresponding contact pressure in the AC mode can reduce the number of pantograph adjustments and improve work efficiency.
  • AC mode and DC mode different current systems
  • Step S120 detecting the current system of the contact net.
  • the current system detector can be used to detect the current system (AC mode and DC mode) of the catenary.
  • the current system detection can be a multimeter or an oscilloscope. It can be a high-voltage detection device for electric locomotives, and there is no special restriction here.
  • step S130 the pantograph is controlled to raise or lower according to the detected current mode to adjust the contact pressure between the pantograph and the catenary.
  • the flow rate of the compressed gas passing through the valve plate is kept constant to keep the contact pressure (first pressure) between the pantograph and the catenary unchanged;
  • the control valve plate increases the flow rate of the compressed gas for bow lifting to increase the contact pressure between the pantograph and the catenary until it reaches the second pressure.
  • the second pressure is greater than the first pressure, and the specific values of the first pressure and the second pressure shall meet the actual use requirements, which will not be described in detail here.
  • the pantograph control method of the embodiment of the present disclosure may further include:
  • Step S140 confirm that the current system of the contact net matches the first pressure/second pressure, specifically, compare the detection signal of the current system detector with the corresponding contact pressure (first pressure/first pressure) That is to say, the current system is compared with the first pressure/second pressure.
  • the authority can be opened to the operator so that the operator can start the electric locomotive.
  • the pantograph may include a bow head 1, a bow lifting assembly 2, a current system detector and a controller, wherein:
  • the sliding plate 10 on the bow head 1 can be in contact with the catenary and receive flow;
  • the bow lifting assembly 2 connected with the bow head 1 has a valve plate 220 that can adjust the flow of compressed gas for bow lifting to increase or Lower the bow head 1;
  • the controller can control the valve plate 220 according to the current system to adjust the air flow of the compressed gas for bow lifting to adjust the sliding plate 10 and the contact
  • the contact pressure between the nets, that is, the pantograph can adjust the contact pressure between the sliding plate 10 and the catenary according to the current system of the catenary, so that the pantograph can receive current under a variety of current systems.
  • the bow head 1 may have a sliding plate 10, which is used to contact the contact net and receive flow.
  • the number of skateboards 10 can be four, while the number of skateboards 10 in the related art is only two. Therefore, under the condition that the contact pressure between the skateboard 10 and the contact net remains unchanged, the number of skateboards 10
  • the contact area between the bow head 1 and the catenary is doubled, so that the pantograph of the present disclosure can acquire and transmit a larger current in the direct current mode.
  • the bow raising assembly 2 can be connected with the bow head 1 and used to raise or lower the bow head 1.
  • the bow raising assembly 2 may include a base frame 20, a hinge structure 21, a driving member 22, a current system detector and a controller, wherein:
  • the underframe 20 can be fixed on the roof of the electric locomotive to provide a mounting base for the hinge structure 21 and the driving part 22.
  • the bottom frame 20 may be a frame structure formed by splicing side beams.
  • the bottom frame 20 may also be integrally formed, and there is no special limitation here.
  • the side of the bottom frame 20 may be provided with a guide copper bar 200. Since the pantograph of the present disclosure can contact and receive currents with different standards of contact nets, the pantograph needs to be welded with multiple However, because electric locomotives require a large operating current in DC mode, in order to avoid the excessive heating of the busbar due to the excessive operating current, a diversion copper can be installed on the side of the underframe 20 In this way, not only can the transmission of large currents be satisfied, but also holes can be opened at any position of the guide copper bar 200 to facilitate the arrangement of cables. In addition, conductive spraying agent can also be used to protect the connection between the base frame 20 and the guide copper bar 200, so as to avoid corrosion of the connection and reduce the temperature rise of the connection.
  • the hinge structure 21 may include an upper arm 211 and a lower arm 212, wherein the upper arm 211 is connected to the bow head 1, and the lower arm 212 is connected to the base frame 20, and the upper arm 211 and the lower arm 212 are rotatably connected, and the upper arm 211 and the lower arm 212 rotate When, you can raise or lower the bow head 1.
  • the driving member 22 may be provided on the base frame 20 for driving the upper arm 211 and the lower arm 212 to rotate to control the bow head 1 to raise or lower.
  • the driving member 22 may include a valve plate 220, a bow raising device 221, and a gas pipe 222 connecting the valve plate 220 and the bow raising device 221.
  • the compressed gas generated by the air source system of the electric locomotive passes through the valve plate 220 and the gas pipe 222.
  • the compressed gas in the gas path can drive the guide disc of the bow lifting device 221 to move, and the guide disc pulls the wire rope, so that the wire rope wound on the guide disc drives the lower arm 212 to rotate, and then drives it The upper arm 211 rotates, and finally the bow head 1 is raised or lowered.
  • valve plate 220 may include a reversing valve, a first pressure regulating valve, a second pressure regulating valve and a pressure switch, where:
  • the working process of the pantograph of the present disclosure is as follows: when the pantograph is raised for the first time, the reversing valve is connected to the first pressure regulating valve, and compressed gas is supplied to the gas circuit of the pantograph through the first pressure regulating valve.
  • the wind causes the sliding plate 10 to rise and contact with the catenary to receive current; subsequently, the current system detector is used to detect the current system of the catenary.
  • the current system detector has been described in detail above, and will not be repeated here; If the current system of the catenary is in the AC mode, the flow rate of the compressed gas passing through the valve plate 220 is kept unchanged, that is, the compressed gas is maintained to supply air to the air path in the bow raising device 221 through the first pressure regulating valve, and then the sliding plate is maintained The contact pressure (first pressure) between 10 and the catenary remains unchanged; if the current system of the catenary is DC mode, the control valve plate 220 will increase the flow of compressed gas, that is, the reversing valve is switched and adjusted with the second The pressure valve is in communication, so that the compressed gas is supplied to the air path in the bow raising device 221 through the second pressure regulating valve, and the contact pressure between the sliding plate 10 and the catenary is the second pressure.
  • the controller of the embodiment of the present disclosure is connected to the current system detector described above. After the current system detector detects the current system of the catenary and feeds the result back to the controller, the controller can control according to the current system of the catenary
  • the bow head 1 is raised or lowered to adjust the contact pressure between the sliding plate 10 and the contact net.
  • the controller can be a single-chip microcomputer installed on the bow-lifting assembly, of course, it can also be the central processing unit of the locomotive, and there is no special limitation here.
  • the pressure switch in the valve plate 220 is a gas path switching indicator switch.
  • the level signal output by the pressure switch is a low level signal.
  • the level signal output by the pressure switch is a high level signal.
  • the aforementioned controller can also receive the level signal, and compare the level signal (low-level signal/high-level signal) with the current system of the catenary (AC mode/DC mode) to Confirm that the contact pressure (first pressure/second pressure) corresponding to the level signal matches the current system (AC mode/DC mode) of the catenary, that is, when the level signal matches the current system, you can Operators have open permissions so that they can start electric locomotives.
  • valve plate 220 may also include a first pressure gauge and a second pressure gauge.
  • the first pressure gauge is used to display the pressure value of the compressed gas in the air circuit in the AC mode
  • the second pressure gauge is used to display the air circuit in the AC mode.
  • the pressure value of the compressed gas in the AC mode to facilitate the operator to measure the contact pressure.
  • the valve plate 220 of the embodiment of the present disclosure may also include a safety valve. When the valve plate 220 fails and the pressure exceeds the set value of the safety valve, the safety valve will act to prevent excessive pressure in the gas path from damaging the bow. ⁇ 221.
  • the embodiments of the present disclosure also provide an electric locomotive, which includes the pantograph described in any one of the above, which will not be described in detail here.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

La présente invention concerne un procédé de commande de pantographe, un pantographe et une locomotive électrique. Le procédé de commande de pantographe consiste à : soulever un pantographe de telle sorte que le pantographe est en contact avec une caténaire et reçoit du courant, et la pression de contact entre le pantographe et la caténaire est une première pression ; détecter un système de courant de la caténaire ; et commander une plaque de soupape (220) du pantographe selon le système de courant détecté pour ajuster l'écoulement d'air du gaz comprimé pour soulever le pantographe de façon à ajuster la pression de contact entre le pantographe et la caténaire. Le procédé de commande de pantographe permet au pantographe et à la locomotive électrique de recevoir du courant sous une pluralité de systèmes de courant, ce qui non seulement réduit le nombre de pantographes, mais améliore également la polyvalence des locomotives électriques dans différentes régions.
PCT/CN2019/119077 2019-06-18 2019-11-18 Pantographe et son procédé de commande, et locomotive électrique WO2020253081A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910526085.XA CN111907334A (zh) 2019-06-18 2019-06-18 受电弓及其控制方法、电力机车
CN201910526085.X 2019-06-18

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WO2020253081A1 true WO2020253081A1 (fr) 2020-12-24

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WO (1) WO2020253081A1 (fr)

Citations (6)

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US5087797A (en) * 1989-06-14 1992-02-11 Faiveley Transport Air-cushion pantograph
FR2680143A1 (fr) * 1991-08-07 1993-02-12 Faiveley Transport Procede et dispositif pour alimenter electriquement une rame ferroviaire depuis une ligne catenaire.
DE10118608A1 (de) * 2001-04-12 2002-11-07 Schunk Bahntechnik Gmbh Berghe Verfahren und Anordnung zur Steuerung einer Anpresskraft eines an einem Fahrdraht anliegenden Stromabnehmers eines Fahrzeuges wie Schienenfahrzeuges
CN201124766Y (zh) * 2007-11-01 2008-10-01 株洲九方电器设备有限公司 一种带气阀箱的双气囊式轻轨与地铁用受电弓
CN104670027A (zh) * 2015-03-16 2015-06-03 南车株洲电力机车有限公司 一种机车弓网压力调节系统
CN105459839A (zh) * 2015-11-24 2016-04-06 唐山轨道客车有限责任公司 双制式受流系统和方法

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EP0605214B1 (fr) * 1992-12-28 1997-11-19 Hitachi, Ltd. Dispositif haute vitesse et silencieux de collecteur de courant
DE102011053361A1 (de) * 2011-09-07 2013-03-07 Bombardier Transportation Gmbh Vorrichtung zur Auswahl eines Stromabnehmers eines Schienenfahrzeugs sowie Verfahren zum kontaktlosen Erkennen eines Spannungssystems
CN203005120U (zh) * 2012-11-30 2013-06-19 南车株洲电力机车有限公司 一种用于受电弓的升降弓气路控制装置
CN203937523U (zh) * 2014-05-23 2014-11-12 北京赛德高科铁道电气科技有限责任公司 一种受电弓控制阀板
CN205017091U (zh) * 2015-08-21 2016-02-03 南车青岛四方机车车辆股份有限公司 用于双流制动车组的交直流转换控制电路及双流制动车组
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CN106494235B (zh) * 2016-12-27 2019-02-22 北京中车赛德铁道电气科技有限公司 一种双制式高速受电弓用弓头
CN107640034B (zh) * 2017-08-08 2020-02-21 中车大连机车车辆有限公司 电力机车的接触网电压类型检测系统及检测方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5087797A (en) * 1989-06-14 1992-02-11 Faiveley Transport Air-cushion pantograph
FR2680143A1 (fr) * 1991-08-07 1993-02-12 Faiveley Transport Procede et dispositif pour alimenter electriquement une rame ferroviaire depuis une ligne catenaire.
DE10118608A1 (de) * 2001-04-12 2002-11-07 Schunk Bahntechnik Gmbh Berghe Verfahren und Anordnung zur Steuerung einer Anpresskraft eines an einem Fahrdraht anliegenden Stromabnehmers eines Fahrzeuges wie Schienenfahrzeuges
CN201124766Y (zh) * 2007-11-01 2008-10-01 株洲九方电器设备有限公司 一种带气阀箱的双气囊式轻轨与地铁用受电弓
CN104670027A (zh) * 2015-03-16 2015-06-03 南车株洲电力机车有限公司 一种机车弓网压力调节系统
CN105459839A (zh) * 2015-11-24 2016-04-06 唐山轨道客车有限责任公司 双制式受流系统和方法

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