CN108749582B - Control method and device for power supply of electric locomotive and electric locomotive - Google Patents
Control method and device for power supply of electric locomotive and electric locomotive Download PDFInfo
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- CN108749582B CN108749582B CN201810865878.XA CN201810865878A CN108749582B CN 108749582 B CN108749582 B CN 108749582B CN 201810865878 A CN201810865878 A CN 201810865878A CN 108749582 B CN108749582 B CN 108749582B
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- locomotive
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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
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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
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
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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
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a control method and device for power supply of an electric locomotive and the electric locomotive. The method comprises the following steps: if the voltage of a storage battery pack of the locomotive is detected to be lower than a preset threshold value, controlling an external power supply to supply power for a pantograph lifting loop and a control system of the locomotive; controlling a control system of the locomotive to start; and if the control system monitors that the pantograph of the locomotive rises and a main circuit of the locomotive is conducted with a contact network, controlling the external power supply to stop supplying power to the pantograph rising loop and the control system. According to the embodiment of the invention, when the voltage of the storage battery pack is lower than the preset threshold value, the external power supply is controlled to supply power to the pantograph lifting loop and the control system of the locomotive, the control system can be automatically started under the contact network, then the pantograph is lifted to be charged and maintained, the locomotive starting when the storage battery is in power failure is completed, the operation is simple and convenient, and the efficiency is higher.
Description
Technical Field
The invention relates to the technical field of electric locomotive control, in particular to a control method and device for power supply of an electric locomotive and the electric locomotive.
Background
The electric locomotive is a locomotive with wheels driven by a traction motor, and is a locomotive without self-contained energy sources because the electric energy required by the running electric locomotive is supplied by a contact net or a third rail of an electrified railway power supply system. The electric locomotive has the advantages of high power, strong overload capacity, high traction force, high speed, short servicing time, less maintenance amount, low operation cost, convenience for realizing multi-locomotive traction, capability of adopting regenerative braking, energy conservation and the like. The electric locomotive traction train can improve the running speed and the bearing weight of the train, thereby greatly improving the transportation capacity and the passing capacity of the railway. Before the electric locomotive is lifted to a bow, a locomotive storage battery pack provides power for a control system of the locomotive. After the locomotive pantograph is lifted, the control system can be powered by the DC110V power supply converted by the overhead line system, and meanwhile, the storage battery pack is charged.
Because the power supply of the electric locomotive control system is provided by the locomotive storage battery before the pantograph is not lifted, the storage battery has too low voltage when the locomotive is stored for a long time, so that the locomotive control system cannot work, the locomotive cannot lift the pantograph, and the normal use of the locomotive is influenced.
Disclosure of Invention
The invention provides a control method and device for power supply of an electric locomotive and the electric locomotive, so that the locomotive is started when a storage battery is in power shortage, the operation is simple and convenient, and the efficiency is high.
In a first aspect, the present invention provides a method for controlling power supply of an electric locomotive, including:
if the voltage of a storage battery pack of the locomotive is detected to be lower than a preset threshold value, controlling an external power supply to supply power for a pantograph lifting loop and a control system of the locomotive;
controlling a control system of the locomotive to start;
and if the control system monitors that the pantograph of the locomotive rises and a main circuit of the locomotive is conducted with a contact network, controlling the external power supply to stop supplying power to the pantograph rising loop and the control system.
Optionally, after controlling the external power supply to supply power to the pantograph lifting loop and the control system of the locomotive, the method further includes:
and controlling the input switch and the output switch of the storage battery pack to be disconnected.
Optionally, after the controlling the input switch and the output switch of the storage battery pack to be turned off, the method further includes:
controlling an auxiliary converter connected with the storage battery pack in the locomotive to start;
detecting the output voltage of the auxiliary converter;
and if the output voltage is greater than a preset value, controlling an input switch and an output switch of the storage battery pack to be closed.
Optionally, before the controlling the external power supply to stop supplying power to the pantograph lifting loop and the control system, the method further includes:
acquiring a pantograph lifting signal output by a control system;
determining pantograph lift of the locomotive from the pantograph lift signal.
Optionally, before the controlling the external power supply to stop supplying power to the pantograph lifting loop and the control system, the method further includes:
acquiring a main interruption signal output by a control system;
and determining that the main circuit of the locomotive is conducted with a contact network through the main circuit signal.
In a second aspect, the present invention provides a control device for power supply of an electric locomotive, including:
the first control module is used for controlling an external power supply to supply power to a pantograph-ascending loop and a control system of the locomotive if the voltage of a storage battery pack of the locomotive is detected to be lower than a preset threshold value;
the second control module is used for controlling the starting of a control system of the locomotive;
the first control module is further configured to control the external power supply to stop supplying power to the pantograph lifting loop and the control system if the control system monitors that the pantograph of the locomotive is lifted and a main circuit of the locomotive is connected with a contact network.
Optionally, the second control module is further configured to:
and after controlling an external power supply to supply power to a pantograph lifting loop and a control system of the locomotive, controlling an input switch and an output switch of the storage battery pack to be disconnected.
Optionally, the second control module is further configured to:
controlling an auxiliary converter connected with the storage battery pack in the locomotive to start;
detecting the output voltage of the auxiliary converter;
and if the output voltage is greater than a preset value, controlling an input switch and an output switch of the storage battery pack to be closed.
Optionally, the first control module is further configured to:
acquiring a pantograph lifting signal output by a control system;
determining pantograph lift of the locomotive from the pantograph lift signal.
Optionally, the first control module is further configured to:
acquiring a main interruption signal output by a control system;
and determining that the main circuit of the locomotive is conducted with a contact network through the main circuit signal.
In a third aspect, the present invention provides an electric locomotive comprising:
the control device of any of the first aspects, and the control system and pantograph;
the control device is connected with the control system, and the control device is connected with the pantograph through a pantograph lifting loop.
According to the control method and the device for power supply of the electric locomotive and the electric locomotive provided by the embodiment of the invention, if the voltage of the storage battery pack of the locomotive is detected to be lower than the preset threshold value, the external power supply is controlled to supply power to the pantograph-ascending loop and the control system of the locomotive; controlling a control system of the locomotive to start; if the control system monitors that the pantograph of the locomotive rises and a main breaking circuit of the locomotive is conducted with a contact network, the external power supply is controlled to stop supplying power to the pantograph rising loop and the control system.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic flow chart illustrating an embodiment of a method for controlling power supplied to an electric locomotive according to the present invention;
FIG. 2 is a schematic input/output diagram of a control device according to an embodiment of the method of the present invention;
FIG. 3 is a schematic flow chart illustrating another embodiment of a method for controlling power supplied to an electric locomotive according to the present invention;
fig. 4 is a schematic structural diagram of an embodiment of a control device for power supply of an electric locomotive provided by the invention.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terms "comprising" and "having," and any variations thereof, in the description and claims of this invention and the drawings described herein are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Firstly, the application scene related to the invention is introduced:
the electric locomotive is a locomotive with wheels driven by a traction motor, and is a locomotive without self-contained energy sources because the electric energy required by the running electric locomotive is supplied by a contact net or a third rail of an electrified railway power supply system. The electric locomotive has the advantages of high power, strong overload capacity, high traction force, high speed, short servicing time, less maintenance amount, low operation cost, convenience for realizing multi-locomotive traction, capability of adopting regenerative braking, energy conservation and the like. The electric locomotive traction train can improve the running speed and the bearing weight of the train, thereby greatly improving the transportation capacity and the passing capacity of the railway.
Because the power supply of the electric locomotive control system is provided by the locomotive storage battery before the pantograph is not lifted, the storage battery has too low voltage when the locomotive is stored for a long time, so that the locomotive control system cannot work, the locomotive cannot lift the pantograph, and the normal use of the locomotive is influenced.
In the related art, when the voltage of the storage battery pack of the electric locomotive is too low, the storage battery pack needs to be detached from the locomotive to the ground for charging maintenance. The operation is complicated and the efficiency is low.
According to the method provided by the embodiment of the invention, when the voltage of the storage battery pack is lower than the preset threshold value, the external power supply is controlled to supply power to the pantograph lifting loop and the control system of the locomotive, the control system can be automatically started under the contact network, and then the pantograph is lifted for charging maintenance, so that the operation is simple and convenient.
Fig. 1 is a schematic flow chart of an embodiment of a method for controlling power supply of an electric locomotive according to the present invention. The execution subject of the present embodiment is a control device that supplies power to an electric locomotive. The device can be connected to the rear end of the output of the storage battery pack and connected with a pantograph ascending loop of the locomotive to provide DC110V power for the pantograph ascending loop, and simultaneously output DC24-110V (adjustable) power to provide command signals for a control system of the locomotive. As shown in fig. 2, the apparatus includes network input and output interfaces (RS485 interface). As shown in fig. 1, the method provided by this embodiment includes:
Specifically, before the power is supplied to the pantograph ascending loop and the control system of the locomotive through the external power supply, the voltage of a storage battery pack of the locomotive needs to be determined, and if the voltage of the storage battery pack is lower than a preset threshold value, for example, lower than 77V, the external power supply is started to supply power to the pantograph ascending loop and the control system of the locomotive. The external power supply can be a power supply arranged in a control device for supplying power to the electric locomotive.
And step 102, controlling a control system of the locomotive to start.
Specifically, after the external power supply supplies power to the pantograph lifting loop and the control system of the locomotive, the control system of the locomotive is started, the pantograph lifting of the locomotive can be controlled through the control system, and the external power supply continuously supplies power to the pantograph lifting loop in the pantograph lifting process.
And 103, if the pantograph of the locomotive is monitored to be lifted through the control system and a main circuit of the locomotive is conducted with a contact network, controlling the external power supply to stop supplying power to the pantograph lifting loop and the control system.
Specifically, after a control system of the locomotive is started, whether the pantograph is lifted is monitored through the control system, whether a main circuit of the locomotive is conducted with a contact network is further determined after the pantograph is lifted, and if the pantograph of the locomotive is lifted and the main circuit of the locomotive is conducted with the contact network, the external power supply is controlled to stop supplying power to the pantograph lifting circuit and the control system.
At the moment, the control system can be powered by the DC110V power supply converted by the overhead line system, and meanwhile, the storage battery pack is charged.
Optionally, monitoring whether the pantograph is lifted may be specifically implemented by:
before step 103, acquiring a pantograph rising signal output by a control system;
determining pantograph lift of the locomotive from the pantograph lift signal.
Specifically, the pantograph rising signal is used for indicating whether the flashlight pantograph rises or not, namely whether a pantograph of the locomotive rises or not can be determined through the pantograph rising signal, and if the pantograph rises, whether a main circuit of the locomotive is conducted with a contact system or not is further determined.
Further, determining whether the main circuit of the locomotive is connected with the contact network can be specifically realized in the following manner:
before step 103, acquiring a main interrupt signal output by a control system;
and determining that the main circuit of the locomotive is conducted with a contact network through the main circuit signal.
Specifically, the main break signal is used for indicating the main break circuit of the locomotive to be conducted, and the conduction of the main break circuit indicates that the main break circuit is conducted with a contact network. The contact net provides the running power for the locomotive through the main circuit breaker, namely the power is supplied to the traction motor of the locomotive.
According to the method, if the voltage of a storage battery pack of the locomotive is detected to be lower than a preset threshold value, an external power supply is controlled to supply power to a pantograph-ascending loop and a control system of the locomotive; controlling a control system of the locomotive to start; if the control system monitors that the pantograph of the locomotive rises and a main breaking circuit of the locomotive is conducted with a contact network, the external power supply is controlled to stop supplying power to the pantograph rising loop and the control system.
On the basis of the above embodiment, optionally, after step 101, the following operations may also be performed:
and controlling the input switch and the output switch of the storage battery pack to be disconnected.
Optionally, after the controlling the input switch and the output switch of the storage battery pack to be turned off, the method further includes:
controlling an auxiliary converter connected with the storage battery pack in the locomotive to start;
detecting the output voltage of the auxiliary converter;
and if the output voltage is greater than a preset value, controlling an input switch and an output switch of the storage battery pack to be closed.
Specifically, when the voltage of the storage battery pack is detected to be lower than a preset threshold value, the input switch and the output switch of the storage battery pack are controlled to be disconnected, and the storage battery pack is stopped to supply power to the locomotive.
And further starting the auxiliary converter, wherein the contact network charges the storage battery pack through the auxiliary converter, so that the output voltage of the auxiliary converter needs to be detected after the auxiliary converter is started, if the output voltage of the auxiliary converter is detected to be greater than a preset value, and if the output voltage is greater than 0, the input switch and the output switch of the storage battery pack are controlled to be closed, which indicates that the contact network supplies power to the locomotive, the storage battery pack can be charged through the contact network, and then the external power supply can be closed, namely the external power supply is controlled to stop supplying power to the pantograph-raising loop and the control system.
The control device automatically detects the voltage of the storage battery pack and the auxiliary converter, and can automatically control to disconnect an external power supply and close a charging loop knife switch (input/output switch) of the original storage battery pack of the locomotive after a pantograph of the locomotive rises, so as to finish the starting of the locomotive when the storage battery is in power failure.
Fig. 3 is a schematic flow chart of another embodiment of a control method for supplying power to an electric locomotive according to the present invention. As shown in fig. 3, the method of the present embodiment includes:
if not, continue to execute step 202;
if yes, executing step 203, disconnecting an input/output switch of a storage battery pack of the locomotive;
after step 202, before step 204, an external power supply needs to be connected to supply power to the pantograph lifting loop and the control system; the process is not in sequence with the step 203;
the pantograph of the locomotive is determined to be lifted through the step, and a main circuit of the locomotive is conducted with a contact network.
if so, executing step 207, turning off the switch of the external power supply;
if not, continuing to return to the step 205;
and step 208, closing an input/output switch of a storage battery pack of the locomotive.
Step 207 and step 208 may not be in a sequential order.
According to the method, when the voltage of a storage battery pack of the locomotive is detected to be lower than a preset threshold value, an external power supply is controlled to supply power to a pantograph-ascending loop and a control system of the locomotive; controlling a control system of the locomotive to start and an auxiliary converter to start; if the pantograph of the locomotive is determined to be lifted through the pantograph lifting signal, and the main break circuit of the locomotive is determined to be conducted with the contact network through the main break signal, the external power supply is disconnected, namely the external power supply is controlled to stop supplying power to the pantograph lifting loop and the control system, and after the output voltage of the auxiliary converter is detected, an input/output switch of a storage battery pack of the locomotive is closed to charge the storage battery pack.
Fig. 4 is a schematic structural diagram of an embodiment of a control device for power supply of an electric locomotive according to the present invention, and as shown in fig. 4, the control device for power supply of an electric locomotive according to the present embodiment includes:
the first control module 401 is configured to control an external power supply to supply power to a pantograph-lifting loop and a control system of the locomotive if it is detected that the voltage of a storage battery pack of the locomotive is lower than a preset threshold;
a second control module 402 for controlling activation of a control system of the locomotive;
the first control module 401 is further configured to control the external power supply to stop supplying power to the pantograph lifting loop and the control system if it is monitored by the control system that the pantograph of the locomotive is lifted and the main circuit of the locomotive is connected to the catenary.
Optionally, the second control module 402 is further configured to:
and after controlling an external power supply to supply power to a pantograph lifting loop and a control system of the locomotive, controlling an input switch and an output switch of the storage battery pack to be disconnected.
Optionally, the second control module 402 is further configured to:
controlling an auxiliary converter connected with the storage battery pack in the locomotive to start;
detecting the output voltage of the auxiliary converter;
and if the output voltage is greater than a preset value, controlling an input switch and an output switch of the storage battery pack to be closed.
Optionally, the first control module 401 is further configured to:
acquiring a pantograph lifting signal output by a control system;
determining pantograph lift of the locomotive from the pantograph lift signal.
Optionally, the first control module 401 is further configured to:
acquiring a main interruption signal output by a control system;
and determining that the main circuit of the locomotive is conducted with a contact network through the main circuit signal.
The apparatus of this embodiment may be configured to implement the technical solutions of the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.
The device of this embodiment, when the voltage of storage battery is less than preset threshold value, control external power supply for the lift bow circuit and the control system power supply of locomotive can accomplish control system and start automatically under the contact net, then rise the pantograph and carry out the maintenance of charging, accomplish the locomotive start when the battery is insufficient, easy and simple to handle, efficiency is higher.
An embodiment of the present invention further provides an electric locomotive, including:
the control device, and the control system and pantograph as described in the embodiment of fig. 4;
the control device is connected with the control system, and the control device is connected with the pantograph through a pantograph lifting loop.
The electric locomotive of the embodiment may be used to implement the technical solutions of the above method embodiments, and the implementation principle and technical effects are similar, which are not described herein again.
An embodiment of the present invention further provides an electronic device, including:
a processor, and a memory for storing executable instructions for the processor.
Optionally, an input/output interface, and a communication interface may also be included.
Optionally, a power supply may be included for supplying power to other devices.
The processor is configured to execute the corresponding method in the foregoing method embodiment by executing the executable instruction, and the specific implementation process of the processor may refer to the foregoing method embodiment, which is not described herein again.
The executable instructions may be program codes, and different vehicle types may correspond to different program codes.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the method in the foregoing method embodiment is implemented.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (7)
1. A control method for power supply of an electric locomotive is characterized by comprising the following steps:
if the voltage of a storage battery pack of the locomotive is detected to be lower than a preset threshold value, controlling an external power supply to supply power for a pantograph lifting loop and a control system of the locomotive;
controlling a control system of the locomotive to start;
if the pantograph of the locomotive is monitored to be lifted through the control system and a main circuit of the locomotive is conducted with a contact network, controlling the external power supply to stop supplying power to the pantograph lifting loop and the control system;
before the control of the external power supply to stop supplying power to the pantograph lifting loop and the control system, the method further includes:
acquiring a pantograph lifting signal output by a control system;
determining a pantograph lift of the locomotive from the pantograph lift signal;
before the control external power supply stops supplying power to the pantograph lifting loop and the control system, the method further comprises the following steps:
acquiring a main interruption signal output by a control system;
and determining that the main circuit of the locomotive is conducted with a contact network through the main circuit signal.
2. The method of claim 1, wherein after controlling the off-board power supply to power the pantograph loop and control system of the locomotive, further comprising:
and controlling the input switch and the output switch of the storage battery pack to be disconnected.
3. The method of claim 2, wherein after controlling the input switch and the output switch of the battery pack to be turned off, further comprising:
controlling an auxiliary converter connected with the storage battery pack in the locomotive to start;
detecting the output voltage of the auxiliary converter;
and if the output voltage is greater than a preset value, controlling an input switch and an output switch of the storage battery pack to be closed.
4. A control device for power supply of an electric locomotive, comprising:
the first control module is used for controlling an external power supply to supply power to a pantograph-ascending loop and a control system of the locomotive if the voltage of a storage battery pack of the locomotive is detected to be lower than a preset threshold value;
the second control module is used for controlling the starting of a control system of the locomotive;
the first control module is further configured to control the external power supply to stop supplying power to the pantograph lifting loop and the control system if the control system monitors that the pantograph of the locomotive is lifted and a main circuit of the locomotive is in conduction with a contact network;
the first control module is further configured to:
acquiring a pantograph lifting signal output by a control system;
determining a pantograph lift of the locomotive from the pantograph lift signal;
the first control module is further configured to:
acquiring a main interruption signal output by a control system;
and determining that the main circuit of the locomotive is conducted with a contact network through the main circuit signal.
5. The apparatus of claim 4, wherein the second control module is further configured to:
and after controlling an external power supply to supply power to a pantograph lifting loop and a control system of the locomotive, controlling an input switch and an output switch of the storage battery pack to be disconnected.
6. The apparatus of claim 5, wherein the second control module is further configured to:
controlling an auxiliary converter connected with the storage battery pack in the locomotive to start;
detecting the output voltage of the auxiliary converter;
and if the output voltage is greater than a preset value, controlling an input switch and an output switch of the storage battery pack to be closed.
7. An electric locomotive, comprising:
the control device of any one of claims 4-6, and a control system and pantograph;
the control device is connected with the control system, and the control device is connected with the pantograph through a pantograph lifting loop.
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| CN201810865878.XA CN108749582B (en) | 2018-08-01 | 2018-08-01 | Control method and device for power supply of electric locomotive and electric locomotive |
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| CN113954637B (en) * | 2021-11-08 | 2024-03-08 | 中车长春轨道客车股份有限公司 | Railway vehicle emergency lifting bow switching method |
| CN114069588B (en) * | 2021-11-08 | 2024-03-08 | 中车长春轨道客车股份有限公司 | External power supply control circuit of emergency lift bow pump of rail transit vehicle |
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| DE3926109A1 (en) * | 1989-08-08 | 1991-02-14 | Dornier Gmbh | Overhead current take=off emergency lowering device - responds to pressure loss in compressed air line to operate 2-2 way valve |
| CN201639348U (en) * | 2009-12-31 | 2010-11-17 | 成都运达创新科技有限公司 | Automatic switching system of locomotive power supply |
| JP5868836B2 (en) * | 2012-12-19 | 2016-02-24 | 三菱重工業株式会社 | Charge / discharge control device, charge / discharge control method, program, and vehicle traffic system |
| CN104218669B (en) * | 2014-09-28 | 2016-07-27 | 南车株洲电力机车有限公司 | A kind of charging method of charger module, charging system and correspondence thereof |
| CN205945127U (en) * | 2016-07-25 | 2017-02-08 | 广州地铁集团有限公司 | Portable emergent start power |
| CN107612132A (en) * | 2017-10-19 | 2018-01-19 | 中车株洲电力机车有限公司 | A kind of full-automatic emergency starting control method and device of train |
| CN107891872A (en) * | 2017-10-30 | 2018-04-10 | 中车南京浦镇车辆有限公司 | A kind of emergent pulliung circuit based on Vehicular accumulator cell |
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| CN108749582A (en) | 2018-11-06 |
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