Method and system for suppressing train operation overvoltage and train

Abstract

The invention provides a method and system for restraining train operation overvoltage and a train, and can be applied to the technical field of vehicle control. The method comprises the steps of obtaining overvoltage data related to an operation instruction from an overvoltage database in response to the received operation instruction related to the vacuum circuit breaker; the overvoltage data are screened, operation response time and a target phase angle matched with the operation instruction are obtained, the operation response time represents response time for executing the operation instruction under the condition that the phase angle of the vacuum circuit breaker is the target phase angle, and the operation response time represents response time for executing the operation instruction; the target phase angle represents that the vacuum circuit breaker executes an operation instruction under the condition of the phase angle to meet a train overvoltage condition; and controlling the vacuum circuit breaker to execute the operation instruction according to the operation response time and the target phase angle.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle control technology, and more particularly, to a method, system and train for suppressing train operation overvoltage. Background Art

[0002] As train speeds continue to increase, the opening and closing operations of vacuum circuit breakers when trains are over-phased on the line are becoming more and more frequent, and the resulting overvoltage problem is becoming more and more prominent. Frequent overvoltage shocks will not only increase the potential of the train body, but also cause insulation breakdown of on-board electronic equipment. On the other hand, the high-frequency signals generated by them will also cause electromagnetic interference to the on-board control and communication systems, and even cause logical confusion in the operation of weak on-board electronic equipment. Summary of the invention

[0003] In view of this, the present disclosure provides a method, system and train for suppressing train operation overvoltage.

[0004] One aspect of the present disclosure provides a method for suppressing train operation overvoltage, comprising:

[0005] In response to receiving an operation instruction regarding the vacuum circuit breaker, acquiring overvoltage data related to the operation instruction from an overvoltage database;

[0006] Filtering the overvoltage data to obtain an operation response time and a target phase angle that match the operation instruction, wherein the operation response time represents a response time for executing the operation instruction when the phase angle of the vacuum circuit breaker is the target phase angle, and the target phase angle represents that the vacuum circuit breaker executes the operation instruction at the phase angle to meet the train overvoltage condition; and

[0007] According to the operation response time and the target phase angle, the vacuum circuit breaker is controlled to execute the operation instruction.

[0008] According to an embodiment of the present disclosure, the controlling the vacuum circuit breaker to execute the operation instruction according to the operation response time and the target phase angle includes:

[0009] When it is determined that the phase angle of the vacuum circuit breaker meets the target phase angle, sending the operation instruction to the vacuum circuit breaker according to the operation response time, so that the vacuum circuit breaker executes the operation instruction at a predetermined time; and

[0010] When it is determined that the phase angle of the vacuum circuit breaker does not meet the target phase angle, the phase angle of the vacuum circuit breaker is controlled to be the target phase angle according to the target phase angle, and the operation instruction is sent to the vacuum circuit breaker according to the operation response time, so that the vacuum circuit breaker executes the operation instruction at a predetermined time.

[0011] According to an embodiment of the present disclosure, the overvoltage data includes the historical train operating voltage when the vacuum circuit breaker executes the operating instruction at a historical time, and the historical operating response time and historical phase angle corresponding to the historical train operating voltage information;

[0012] The above-mentioned screening of the above-mentioned overvoltage data to obtain the operation response time and the target phase angle matching the above-mentioned operation instruction includes:

[0013] Determine a target historical train operating voltage that satisfies the train overvoltage condition according to the historical train operating voltage when the vacuum circuit breaker executes the operating instruction at a historical time;

[0014] Determining a target historical operation response time and a target historical phase angle based on the target historical train operating voltage; and

[0015] According to the target historical operation response time and the target historical phase angle, an operation response time and a target phase angle matching the operation instruction are obtained.

[0016] According to an embodiment of the present disclosure, the above method further includes:

[0017] Obtaining the initial historical train operation voltage and the initial historical train response time of the vacuum circuit breaker executing the operation instruction under the initial historical phase angle;

[0018] Adjust the initial historical phase angle according to the target phase angle interval to obtain multiple intermediate historical phase angles;

[0019] Obtaining the intermediate historical train operation voltage and the intermediate historical train response time corresponding to each of the plurality of intermediate historical phase angles obtained by executing the operation instruction when the vacuum circuit breaker is at the plurality of intermediate historical phase angles; and

[0020] The above-mentioned overvoltage database is obtained based on the above-mentioned initial historical phase angle, the above-mentioned initial historical train operating voltage, the above-mentioned initial historical train response time, multiple above-mentioned intermediate historical phase angles, and the intermediate historical train operating voltages and intermediate historical train response times corresponding to each of the multiple above-mentioned intermediate historical phase angles.

[0021] According to an embodiment of the present disclosure, the above method further includes:

[0022] Obtaining train operation information related to the vacuum circuit breaker; and

[0023] When it is determined that the train operation information meets the control conditions of the vacuum circuit breaker, the operation instruction is generated.

[0024] According to an embodiment of the present disclosure, the above method further includes:

[0025] When it is determined that the train operation information meets the control condition of the vacuum circuit breaker, obtaining the execution result of the vacuum circuit breaker on the operation instruction; and

[0026] When it is determined that the execution result indicates that the vacuum circuit breaker does not execute the operation instruction within the predetermined time, a forced instruction is executed on the vacuum circuit breaker.

[0027] According to an embodiment of the present disclosure, the above method further includes:

[0028] When it is determined that the train voltage obtained by the vacuum circuit breaker executing the operation instruction does not satisfy the train overvoltage condition, train alarm information is generated.

[0029] Another aspect of the present disclosure provides a system for suppressing train operation overvoltage, comprising:

[0030] A collection module, used to obtain train operation information; and

[0031] A control module is used for, in response to receiving an operation instruction about a vacuum circuit breaker, obtaining overvoltage data related to the operation instruction from an overvoltage database, screening the overvoltage data, and obtaining an operation response time and a target phase angle that match the operation instruction, wherein the operation response time represents the response time of executing the operation instruction when the phase angle of the vacuum circuit breaker is the target phase angle, and the target phase angle represents that the vacuum circuit breaker executes the operation instruction at the phase angle to meet the train overvoltage condition, and controlling the vacuum circuit breaker to execute the operation instruction according to the operation response time and the target phase angle.

[0032] Another aspect of the present disclosure provides a train, comprising:

[0033] vacuum circuit breakers, traction transformers and grounding devices;

[0034] Among them, the above-mentioned vacuum circuit breaker, the above-mentioned traction transformer and the above-mentioned grounding device are all connected to a voltage transformer, and the above-mentioned voltage transformer is connected to the above-mentioned system for transmitting the voltage information of the above-mentioned vacuum circuit breaker and the above-mentioned traction transformer to the acquisition module.

[0035] According to an embodiment of the present disclosure, the main line of the above-mentioned train is connected to the current transformer, and the above-mentioned current transformer is connected to the above-mentioned acquisition module, so as to transmit the current information of the above-mentioned main line to the above-mentioned acquisition module.

[0036] Another aspect of the present disclosure provides an electronic device, comprising:

[0037] one or more processors;

[0038] a memory for storing one or more programs,

[0039] When the one or more programs are executed by the one or more processors, the one or more processors implement the method as described above.

[0040] According to an embodiment of the present disclosure, by setting up an overvoltage database, when the train needs to operate the vacuum circuit breaker, the target phase angle and operation response time that meet the train overvoltage condition can be obtained from the overvoltage database, so that the operation instructions are executed according to the operation response time and the target phase angle, and the vacuum circuit breaker can execute the operation instructions under the expected state, thereby reducing the overvoltage generated by the vacuum circuit breaker during operation and improving the safety performance of the train. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The above and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0042] Figure 1 A diagram schematically shows an application scenario of a method, system and train for suppressing train operation overvoltage according to an embodiment of the present disclosure;

[0043] Figure 2 A flow chart of a method for suppressing train operation overvoltage according to an embodiment of the present disclosure is schematically shown;

[0044] Figure 3 A block diagram of a system for suppressing train operation overvoltage according to an embodiment of the present disclosure is schematically shown;

[0045] Figure 4 A circuit diagram of a train according to an embodiment of the present disclosure is schematically shown; and

[0046] Figure 5 A block diagram of an electronic device suitable for implementing the method described above according to an embodiment of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0047] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present disclosure. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0048] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise", "include", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0049] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0050] When using expressions such as "at least one of A, B, and C, etc.", they should generally be interpreted according to the meaning of the expression commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0051] In the embodiments of the present disclosure, the collection, updating, analysis, processing, use, transmission, provision, disclosure, storage, etc. of the data involved (for example, including but not limited to user personal information) are in compliance with the provisions of relevant laws and regulations, are used for legitimate purposes, and do not violate public order and good morals. In particular, necessary measures are taken for user personal information to prevent illegal access to user personal information data and maintain the security of user personal information, network security, and national security.

[0052] In the embodiments of the present disclosure, the user's authorization or consent is obtained before obtaining or collecting the user's personal information.

[0053] In the related art, the train needs to operate the vacuum circuit breaker when it is over-phased, which will cause the train to have overvoltage. How to reduce the impact of overvoltage on the train is an urgent problem to be solved. In view of this, the embodiment of the present disclosure provides a method for suppressing train operation overvoltage, including: in response to receiving an operation instruction about the vacuum circuit breaker, obtaining overvoltage data related to the operation instruction from the overvoltage database; screening the overvoltage data to obtain the operation response time and target phase angle matching the operation instruction, wherein the operation response time represents the response time of executing the operation instruction when the phase angle of the vacuum circuit breaker is the target phase angle, and the target phase angle represents that the vacuum circuit breaker executes the operation instruction under the phase angle to meet the train overvoltage condition; according to the operation response time and the target phase angle, the vacuum circuit breaker is controlled to execute the operation instruction.

[0054] Figure 1 The application scenario diagram of the method, system and train for suppressing train operation overvoltage according to an embodiment of the present disclosure is schematically shown.

[0055] like Figure 1 As shown, the application scenario 100 according to this embodiment may include a first train 110 and a second train 120. The first train 110 and the second train 120 may include a device for suppressing train operation overvoltage, and the device for suppressing train operation overvoltage executes a response to receiving an operation instruction about a vacuum circuit breaker, obtains overvoltage data related to the operation instruction from an overvoltage database; screens the overvoltage data to obtain an operation response time and a target phase angle that match the operation instruction, wherein the operation response time represents the response time of executing the operation instruction when the phase angle of the vacuum circuit breaker is the target phase angle, and the target phase angle represents that the vacuum circuit breaker executes the operation instruction under the phase angle to meet the train overvoltage condition; and controls the vacuum circuit breaker to execute the operation instruction according to the operation response time and the target phase angle.

[0056] Figure 2 A flow chart of a method for suppressing train operation overvoltage according to an embodiment of the present disclosure is schematically shown.

[0057] like Figure 2 As shown, the method for suppressing train operation overvoltage includes operations S210 to S230.

[0058] In operation S210, in response to receiving an operation instruction regarding a vacuum circuit breaker, overvoltage data related to the operation instruction is acquired from an overvoltage database.

[0059] In operation S220, overvoltage data is screened to obtain an operation response time and a target phase angle that match the operation instruction, wherein the operation response time represents the response time of executing the operation instruction when the phase angle of the vacuum circuit breaker is the target phase angle, and the target phase angle represents that the vacuum circuit breaker executes the operation instruction at this phase angle to satisfy the train overvoltage condition.

[0060] In operation S230, the vacuum circuit breaker is controlled to execute the operation instruction according to the operation response time and the target phase angle.

[0061] According to the embodiments of the present disclosure, the vacuum circuit breaker can be a circuit in the power control system of the train, and according to the needs of the train operation, part or all of the electrical equipment and part or all of the lines in the train can be put into or out of operation. Vacuum circuit breakers are used in the process of train phase separation and entering and leaving the depot.

[0062] According to an embodiment of the present disclosure, the operation instruction of the vacuum circuit breaker may be an instruction for controlling the vacuum circuit breaker to open or close.

[0063] According to an embodiment of the present disclosure, the train overvoltage condition may be a voltage that enables the train to operate safely.

[0064] According to an embodiment of the present disclosure, the overvoltage database may contain data on the voltage and phase angle of the vacuum circuit breaker of the train when the vacuum circuit breaker is closed or disconnected.

[0065] According to an embodiment of the present disclosure, the overvoltage data may include data of disconnecting and closing the vacuum circuit breaker. The overvoltage data may be screened out by screening out the overvoltage data during the disconnection process of the vacuum circuit breaker, or the overvoltage data during the closing process of the vacuum circuit breaker. The overvoltage data may also be screened out according to the voltage of the train during the operation of the vacuum circuit breaker, and the overvoltage data at the voltage at which the train can operate stably may be screened out. The overvoltage data includes the response time and target phase angle of the vacuum circuit breaker.

[0066] According to the embodiments of the present disclosure, since the overvoltage data can characterize the relationship between the response time and the phase angle of the vacuum circuit breaker, selecting the operation response time and the target phase angle that match the operation instruction can allow the vacuum circuit breaker to operate according to the operation response time and the target phase angle, thereby reducing the overvoltage phenomenon of the vacuum circuit breaker.

[0067] According to an embodiment of the present disclosure, by setting up an overvoltage database, when the train needs to operate the vacuum circuit breaker, the target phase angle and operation response time that meet the train overvoltage condition can be obtained from the overvoltage database, so that the operation instructions are executed according to the operation response time and the target phase angle, and the vacuum circuit breaker can execute the operation instructions under the expected state, thereby reducing the overvoltage generated by the vacuum circuit breaker during operation and improving the safety performance of the train.

[0068] According to an embodiment of the present disclosure, a vacuum circuit breaker is controlled to execute an operation instruction according to an operation response time and a target phase angle, including: when it is determined that the phase angle of the vacuum circuit breaker meets the target phase angle, according to the operation response time, an operation instruction is sent to the vacuum circuit breaker so that the vacuum circuit breaker executes the operation instruction at a predetermined time; when it is determined that the phase angle of the vacuum circuit breaker does not meet the target phase angle, according to the target phase angle, the phase angle of the vacuum circuit breaker is controlled to be the target phase angle, and according to the operation response time, an operation instruction is sent to the vacuum circuit breaker so that the vacuum circuit breaker executes the operation instruction at a predetermined time.

[0069] According to an embodiment of the present disclosure, after obtaining the operation response time and the target phase angle, the phase angle of the vacuum circuit breaker can be checked. When it is determined that the phase angle of the vacuum circuit breaker meets the target phase angle, an operation instruction can be sent to the vacuum circuit breaker according to the operation response time. For example, if the operation response time is 20ms, an operation instruction can be sent to the vacuum circuit breaker 20ms before the operation so that the vacuum circuit breaker can act 20ms later.

[0070] According to an embodiment of the present disclosure, when it is determined that the phase angle of the vacuum circuit breaker does not meet the target phase angle, the phase angle of the vacuum circuit breaker can be adjusted to the target phase angle, and then an operation instruction can be sent to the vacuum circuit breaker based on the operation response time so that the vacuum circuit breaker executes the operation instruction at a predetermined time.

[0071] According to the embodiments of the present disclosure, by controlling the vacuum circuit breaker according to the operation response time and the target phase angle, the overvoltage of the vacuum circuit breaker can be controlled, thereby improving the safety performance of the train.

[0072] According to an embodiment of the present disclosure, the overvoltage data includes a historical train operating voltage when the vacuum circuit breaker executes an operating instruction at a historical time, and a historical operating response time and a historical phase angle corresponding to the historical train operating voltage information.

[0073] According to an embodiment of the present disclosure, overvoltage data is screened to obtain an operation response time and a target phase angle that match an operation instruction, including: determining a target historical train operating voltage that meets a train overvoltage condition based on a historical train operating voltage when a vacuum circuit breaker executes an operation instruction at a historical time; determining a target historical operation response time and a target historical phase angle based on the target historical train operating voltage; and obtaining an operation response time and a target phase angle that match the operation instruction based on the target historical operation response time and the target historical phase angle.

[0074] According to an embodiment of the present disclosure, the overvoltage database of the train can be updated before the train goes online or after the equipment affecting the overvoltage is overhauled and replaced. The updating method can be to allow the vacuum circuit breaker to execute operating instructions at different phase angles, thereby obtaining the historical train operating voltage when the vacuum circuit breaker executes the operating instructions at historical time and the historical operating response time and historical phase angle corresponding to the historical train operating voltage information.

[0075] According to an embodiment of the present disclosure, the above method may also include: obtaining the initial historical train operating voltage and initial historical train response time of the vacuum circuit breaker executing the operation instruction under the initial historical phase angle; adjusting the initial historical phase angle according to the target phase angle interval to obtain multiple intermediate historical phase angles; obtaining the intermediate historical train operating voltage and intermediate historical train response time corresponding to each of the multiple intermediate historical phase angles obtained by the vacuum circuit breaker executing the operation instruction under the condition of multiple intermediate historical phase angles; obtaining an overvoltage database based on the initial historical phase angle, the initial historical train operating voltage, the initial historical train response time, multiple intermediate historical phase angles, and the intermediate historical train operating voltage and intermediate historical train response time corresponding to each of the multiple intermediate historical phase angles.

[0076] According to an embodiment of the present disclosure, the initial historical phase angle may be any angle, such as 60°, 70°, or 80°. A plurality of intermediate historical phase angles may be obtained at intervals of 1° at the target phase angle interval, and the vacuum circuit breaker may be operated according to the intermediate historical phase angles to obtain intermediate historical operating voltages and intermediate historical train response times corresponding to the plurality of intermediate historical phase angles.

[0077] According to the embodiments of the present disclosure, multiple intermediate historical phase angles can be obtained at intervals of 10° at the target phase angle interval, and the intermediate historical operating voltage and the intermediate historical train response time can be obtained in order from small to large. Based on the intermediate historical operating voltage and the intermediate historical train response time, a target phase angle interval is selected, and then the target phase angle interval is adjusted to 1° within the target phase angle interval to obtain the intermediate historical operating voltage and the intermediate historical train response time.

[0078] According to an embodiment of the present disclosure, an overvoltage database is established based on all the obtained data.

[0079] According to an embodiment of the present disclosure, in order to ensure the accuracy of the operating overvoltage feature database, the data in the overvoltage database may be circulated three times for correction to prevent external interference from affecting the accuracy of the collected operating overvoltage.

[0080] According to the embodiments of the present disclosure, the overvoltage database can be used to intelligently analyze and compare the relationship between the operating voltage value and the phase angle of the closed or disconnected vacuum circuit breaker, and the operating overvoltage of the current closed or disconnected vacuum circuit breaker can be compared with the overvoltage characteristic database of the closed or disconnected vacuum circuit breaker of this train, and the main circuit breaker can be closed or disconnected at the optimal phase angle to suppress the operating overvoltage. The overvoltage database can also be analyzed to find out the variables that affect the operating overvoltage.

[0081] According to an embodiment of the present disclosure, the above method may further include acquiring train operation information related to the vacuum circuit breaker; and generating an operation instruction when it is determined that the train operation information meets the control conditions of the vacuum circuit breaker.

[0082] According to an embodiment of the present disclosure, the train operation information may include wind pressure signals, oil flow circuit breaker signals, traction converter fault signals, traction converter grounding switch signals, traction converter overcurrent signals, high voltage overcurrent signals, pantograph status signals, etc. When all of these signals meet the conditions, an operation instruction is generated.

[0083] According to an embodiment of the present disclosure, the above method may also include obtaining the execution result of the vacuum circuit breaker on the operation instruction when it is determined that the train operation information meets the control conditions of the vacuum circuit breaker; and executing a forced instruction on the vacuum circuit breaker when it is determined that the execution result indicates that the vacuum circuit breaker has not executed the operation instruction within the predetermined time.

[0084] According to an embodiment of the present disclosure, when it is determined that the train operation information meets the control conditions of the vacuum circuit breaker, the vacuum circuit breaker is closed or opened, but if the vacuum circuit breaker does not work, there may be a fault in the vacuum circuit breaker fine-tuning circuit. A forced instruction can be executed on the vacuum circuit breaker to close or open the vacuum circuit breaker to avoid affecting the normal operation of the train.

[0085] According to an embodiment of the present disclosure, the above method may further include: generating train alarm information when it is determined that the train voltage obtained by the vacuum circuit breaker executing the operation instruction does not meet the train overvoltage condition.

[0086] According to an embodiment of the present disclosure, when it is determined that the train voltage obtained by executing an operating instruction of the vacuum circuit breaker does not meet the train overvoltage condition, for example, when the current parameter at the moment the vacuum circuit breaker is closed or disconnected exceeds a certain limit, an alarm message can be generated to provide an alarm prompt, and the train driver can determine to exit the operation or return to the depot for a special inspection after the operation ends based on the alarm message.

[0087] According to the embodiments of the present disclosure, when the operating overvoltage collected this time deviates significantly from the overvoltage database, an alarm message of equipment failure can be issued, and key equipment can be repaired after the train returns to the depot to prevent extreme failures such as poor grounding and to avoid problems such as train rescue that affect operating order.

[0088] According to an embodiment of the present disclosure, the method for suppressing train operation overvoltage provided by the present disclosure can also be extended to transformer control loops in non-railway transportation industries.

[0089] Figure 3 A block diagram of a system for suppressing train operation overvoltage according to an embodiment of the present disclosure is schematically shown.

[0090] like Figure 3 As shown, the system 300 for suppressing train operation overvoltage includes a collection module 310 and a control module 320 .

[0091] The acquisition module 310 is used to obtain the operation information of the train.

[0092] The control module 320 is used for, in response to receiving an operation instruction about a vacuum circuit breaker, obtaining overvoltage data related to the operation instruction from an overvoltage database, screening the overvoltage data, and obtaining an operation response time and a target phase angle that match the operation instruction, wherein the operation response time represents the response time of executing the operation instruction when the phase angle of the vacuum circuit breaker is the target phase angle, the target phase angle represents that the vacuum circuit breaker executes the operation instruction under the phase angle to meet the train overvoltage condition, and controlling the vacuum circuit breaker to execute the operation instruction according to the operation response time and the target phase angle.

[0093] According to the embodiments of the present invention, any one or more of the modules, submodules, units, and subunits, or at least part of the functions of any one of them can be implemented in one module. According to the embodiments of the present invention, any one or more of the modules, submodules, units, and subunits can be split into multiple modules for implementation. According to the embodiments of the present invention, any one or more of the modules, submodules, units, and subunits can be at least partially implemented as hardware circuits, such as field programmable gate arrays (FPGAs), programmable logic arrays (PLAs), systems on chips, systems on substrates, systems on packages, application specific integrated circuits (ASICs), or can be implemented by hardware or firmware in any other reasonable way of integrating or packaging circuits, or can be implemented in any one of the three implementation methods of software, hardware, and firmware, or in any appropriate combination of any of them. Alternatively, according to the embodiments of the present invention, one or more of the modules, submodules, units, and subunits can be at least partially implemented as computer program modules, and when the computer program modules are run, the corresponding functions can be performed.

[0094] For example, any multiple of the acquisition module 310 and the control module 320 can be combined in one module / unit / sub-unit for implementation, or any one of the modules / units / sub-units can be split into multiple modules / units / sub-units. Alternatively, at least part of the functions of one or more of these modules / units / sub-units can be combined with at least part of the functions of other modules / units / sub-units and implemented in one module / unit / sub-unit. According to an embodiment of the present disclosure, at least one of the acquisition module 310 and the control module 320 can be at least partially implemented as a hardware circuit, such as a field programmable gate array (FPGA), a programmable logic array (PLA), a system on a chip, a system on a substrate, a system on a package, an application specific integrated circuit (ASIC), or can be implemented by hardware or firmware such as any other reasonable way of integrating or packaging the circuit, or implemented in any one of the three implementation methods of software, hardware and firmware or in any appropriate combination of any of them. Alternatively, at least one of the acquisition module 310 and the control module 320 can be at least partially implemented as a computer program module, and when the computer program module is run, the corresponding function can be executed.

[0095] It should be noted that the system part for suppressing train operation overvoltage in the embodiments of the present disclosure corresponds to the method part for suppressing train operation overvoltage in the embodiments of the present disclosure. The description of the system part for suppressing train operation overvoltage specifically refers to the method part for suppressing train operation overvoltage, which will not be repeated here.

[0096] Figure 4 A circuit diagram of a train according to an embodiment of the present disclosure is schematically shown.

[0097] like Figure 4 As shown, the train 400 includes a vacuum circuit breaker 410 , a traction transformer 420 , and a grounding device 430 .

[0098] Among them, the vacuum circuit breaker 410, the traction transformer 420 and the grounding device 430 are all connected to the voltage transformer 440, and the voltage transformer 440 is connected to the system for suppressing train operation overvoltage in the embodiment of the present disclosure, and is used to transmit the voltage information of the vacuum circuit breaker and the traction transformer to the acquisition module. The main line of the train is connected to the current transformer 450, and the current transformer 450 is connected to the acquisition module, and is used to transmit the current information of the main line to the acquisition module.

[0099] like Figure 4 As shown, the AC25kV input of the EMU main circuit is connected to the input end of the vacuum circuit breaker through the current transformer; the current of the main circuit is alternately input to the acquisition module through the current transformer; the vacuum circuit breaker controls the connection and disconnection of the AC25kV power supply of the EMU; the input and output of the vacuum circuit breaker are both connected to the voltage transformer, and the voltage transformer steps down the voltage signal before and after the vacuum circuit breaker and inputs it into the acquisition module; the output of the vacuum circuit breaker is connected to the traction transformer; the traction transformer is composed of a number of traction windings; the secondary side of each traction winding is connected to the voltage transformer, and the voltage of the secondary side coil of the traction winding is stepped down and input into the acquisition module; the output of the traction transformer is connected to the return main line and the grounding devices of a number of wheel axles; the car body is connected to the return main line through a grounding resistor; the voltage between the car body and the return main line is stepped down through a voltage transformer and input into the acquisition module.

[0100] The EMU control module is connected to the vacuum circuit breaker control circuit, and the control module controls the vacuum circuit breaker control circuit to close and open the vacuum circuit breaker phase angle fine-tuning; the acquisition module is connected to the current transformer, AC25kV input voltage transformer, car body grounding device voltage transformer, traction winding primary voltage transformer, traction winding secondary voltage transformer, and collects the parameters of each voltage transformer and current transformer; the control module is connected to the acquisition module, receives the train operation data uploaded by the acquisition module, stores the operating overvoltage value of each acquisition position, and establishes an operating overvoltage database; according to the database parameters, logical control is performed to control the closing and opening phase angles of the vacuum circuit breaker to achieve the purpose of suppressing the operating overvoltage.

[0101] The vacuum circuit breaker control circuit includes control conditions. When all control conditions are met, the control module is uploaded. The control module combines the response time of the vacuum circuit breaker control circuit to fine-tune the final closing and disconnecting conditions of the vacuum circuit breaker control circuit. The fine-tuning only adjusts the closing and disconnecting phase angles of the vacuum circuit breaker, and does not affect the execution of the vacuum circuit breaker control circuit. The control module can adjust the phase angle of the current closing and disconnecting of the vacuum circuit breaker according to the feedback information of the last operation overvoltage of the vacuum circuit breaker; the control system can also adjust the phase angle of the current closing and disconnecting of the vacuum circuit breaker according to the operation overvoltage database of this EMU; in order to ensure the safe and reliable execution of the vacuum circuit breaker control circuit instructions, redundant control is performed to ensure the accuracy of the closing and disconnecting of the vacuum circuit breaker. The control system only fine-tunes the action timing of the vacuum circuit breaker control circuit. If the control module does not perform the required action within a certain period of time, such as 20ms, the vacuum circuit breaker control circuit will force the closing and disconnecting of the vacuum circuit breaker according to the control instructions to ensure the safety of the EMU.

[0102] Furthermore, the current transformer inputs the current of the main circuit into the acquisition module, which uploads the data to the control module. The control module performs data comparison and logical judgment. When the current parameters at the moment of closing and disconnecting the vacuum circuit breaker exceed a certain limit, an alarm message is prompted. The driver can decide to exit the operation or return to the depot for special inspection after the operation ends based on the prompt information.

[0103] The train of the disclosed embodiment can collect the primary, secondary, car body voltage, grid-side voltage and primary current of the train's traction transformer; it can store and back up the phase angle and operating voltage values ​​(primary, secondary, car body voltage and grid-side voltage values ​​of the traction transformer, etc.) when the train closes and opens the main circuit breaker.

[0104] Figure 5 A block diagram of an electronic device suitable for implementing the method described above according to an embodiment of the present disclosure is schematically shown. Figure 5 The electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present disclosure.

[0105] like Figure 5As shown, the electronic device 500 according to an embodiment of the present disclosure includes a processor 501, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 502 or a program loaded from a storage part 508 to a random access memory (RAM) 503. The processor 501 may include, for example, a general-purpose microprocessor (such as a CPU), an instruction set processor and / or a related chipset and / or a special-purpose microprocessor (for example, an application-specific integrated circuit (ASIC)), etc. The processor 501 may also include an onboard memory for caching purposes. The processor 501 may include a single processing unit or multiple processing units for performing different actions of the method flow according to an embodiment of the present disclosure.

[0106] In RAM 503, various programs and data required for the operation of electronic device 500 are stored. Processor 501, ROM 502 and RAM 503 are connected to each other via bus 504. Processor 501 performs various operations of the method flow according to the embodiment of the present disclosure by executing the program in ROM 502 and / or RAM 503. It should be noted that the program can also be stored in one or more memories other than ROM 502 and RAM 503. Processor 501 can also perform various operations of the method flow according to the embodiment of the present disclosure by executing the program stored in the one or more memories.

[0107] According to an embodiment of the present disclosure, the electronic device 500 may further include an input / output (I / O) interface 505, which is also connected to the bus 504. The electronic device 500 may further include one or more of the following components connected to the input / output (I / O) interface 505: an input portion 506 including a keyboard, a mouse, etc.; an output portion 507 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage portion 508 including a hard disk, etc.; and a communication portion 509 including a network interface card such as a LAN card, a modem, etc. The communication portion 509 performs communication processing via a network such as the Internet. A drive 510 is also connected to the input / output (I / O) interface 505 as needed. A removable medium 511, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 510 as needed, so that a computer program read therefrom is installed into the storage portion 508 as needed.

[0108] According to an embodiment of the present disclosure, the method flow according to an embodiment of the present disclosure can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program carried on a computer-readable storage medium, and the computer program contains a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network through the communication part 509, and / or installed from the removable medium 511. When the computer program is executed by the processor 501, the above-mentioned functions defined in the system of the embodiment of the present disclosure are executed. According to an embodiment of the present disclosure, the system, equipment, device, module, unit, etc. described above can be implemented by a computer program module.

[0109] The present disclosure also provides a computer-readable storage medium, which may be included in the device / apparatus / system described in the above embodiments; or may exist independently without being assembled into the device / apparatus / system. The above computer-readable storage medium carries one or more programs, and when the above one or more programs are executed, the method according to the embodiment of the present disclosure is implemented.

[0110] According to an embodiment of the present disclosure, the computer-readable storage medium may be a non-volatile computer-readable storage medium. For example, it may include, but is not limited to: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present disclosure, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, apparatus, or device.

[0111] For example, according to an embodiment of the present disclosure, the computer-readable storage medium may include the ROM 502 and / or the RAM 503 described above and / or one or more memories other than the ROM 502 and the RAM 503 .

[0112] An embodiment of the present disclosure also includes a computer program product, which includes a computer program, which contains program code for executing the method provided by the embodiment of the present disclosure. When the computer program product is run on an electronic device, the program code is used to enable the electronic device to implement the method for suppressing train operation overvoltage provided by the embodiment of the present disclosure.

[0113] When the computer program is executed by the processor 501, the above functions defined in the system / device of the embodiment of the present disclosure are executed. According to the embodiment of the present disclosure, the system, device, module, unit, etc. described above can be implemented by a computer program module.

[0114] In one embodiment, the computer program may rely on tangible storage media such as optical storage devices, magnetic storage devices, etc. In another embodiment, the computer program may also be transmitted and distributed in the form of signals on a network medium, and downloaded and installed through the communication part 509, and / or installed from the removable medium 511. The program code contained in the computer program may be transmitted using any appropriate network medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0115] According to an embodiment of the present disclosure, the program code for executing the computer program provided by the embodiment of the present disclosure can be written in any combination of one or more programming languages. Specifically, these computing programs can be implemented using high-level process and / or object-oriented programming languages, and / or assembly / machine languages. Programming languages ​​include, but are not limited to, Java, C++, python, "C" language or similar programming languages. The program code can be executed entirely on the user computing device, partially on the user device, partially on the remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device can be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computing device (for example, using an Internet service provider to connect through the Internet).

[0116] The flowcharts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram may represent a module, a program segment, or a part of a code, and the above-mentioned module, program segment, or a part of the code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box may also occur in an order different from that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart, can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions. It can be understood by those skilled in the art that the features recorded in the various embodiments of the present disclosure can be combined and / or combined in a variety of ways, even if such a combination or combination is not explicitly recorded in the present disclosure. In particular, without departing from the spirit and teaching of the present disclosure, the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways. All of these combinations and / or combinations fall within the scope of the present disclosure.

[0117] The embodiments of the present disclosure are described above. However, these embodiments are only for illustrative purposes and are not intended to limit the scope of the present disclosure. Although the embodiments are described above, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. Without departing from the scope of the present disclosure, those skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. A method for suppressing train operation overvoltage, comprising: In response to receiving an operation instruction regarding the vacuum circuit breaker, acquiring overvoltage data related to the operation instruction from an overvoltage database; The overvoltage data is screened to obtain an operation response time and a target phase angle that match the operation instruction, wherein the operation response time represents the response time of executing the operation instruction when the phase angle of the vacuum circuit breaker is the target phase angle, and the target phase angle represents that the vacuum circuit breaker executes the operation instruction at the phase angle to meet the train overvoltage condition; as well as The vacuum circuit breaker is controlled to execute the operation instruction according to the operation response time and the target phase angle.

2. The method according to claim 1, wherein: The controlling the vacuum circuit breaker to execute the operation instruction according to the operation response time and the target phase angle comprises: In the case where it is determined that the phase angle of the vacuum circuit breaker meets the target phase angle, sending the operation instruction to the vacuum circuit breaker according to the operation response time, so that the vacuum circuit breaker executes the operation instruction at a predetermined time; and When it is determined that the phase angle of the vacuum circuit breaker does not meet the target phase angle, the phase angle of the vacuum circuit breaker is controlled to be the target phase angle according to the target phase angle, and the operation instruction is sent to the vacuum circuit breaker according to the operation response time, so that the vacuum circuit breaker executes the operation instruction at a predetermined time.

3. The method according to claim 1, wherein: The overvoltage data includes a historical train operating voltage when the vacuum circuit breaker executes the operating instruction at a historical time and a historical operating response time and a historical phase angle corresponding to the historical train operating voltage information; The step of screening the overvoltage data to obtain an operation response time and a target phase angle that match the operation instruction includes: Determining a target historical train operating voltage that satisfies the train overvoltage condition according to a historical train operating voltage when the vacuum circuit breaker executes the operating instruction at a historical time; Determining a target historical operation response time and a target historical phase angle according to the target historical train operating voltage; and An operation response time and a target phase angle matching the operation instruction are obtained according to the target historical operation response time and the target historical phase angle.

4. The method according to claim 3, further comprising: Acquire an initial historical train operation voltage and an initial historical train response time for the vacuum circuit breaker to execute the operation instruction under an initial historical phase angle; Adjusting the initial historical phase angle according to the target phase angle interval to obtain a plurality of intermediate historical phase angles; Obtaining the intermediate historical train operation voltage and the intermediate historical train response time corresponding to each of the plurality of intermediate historical phase angles obtained by executing the operation instruction when the vacuum circuit breaker is at the plurality of intermediate historical phase angles; as well as The overvoltage database is obtained according to the initial historical phase angle, the initial historical train operating voltage, the initial historical train response time, multiple intermediate historical phase angles, and the intermediate historical train operating voltages and intermediate historical train response times corresponding to each of the multiple intermediate historical phase angles.

5. The method according to any one of claims 1 to 4, further comprising: Acquiring train operation information related to the vacuum circuit breaker; as well as When it is determined that the train operation information meets the control condition of the vacuum circuit breaker, the operation instruction is generated.

6. The method according to claim 5, further comprising: When it is determined that the train operation information meets the control condition of the vacuum circuit breaker, obtaining the execution result of the vacuum circuit breaker on the operation instruction; as well as In a case where it is determined that the execution result indicates that the vacuum circuit breaker does not execute the operation instruction within the predetermined time, a forced instruction is executed on the vacuum circuit breaker.

7. The method according to any one of claims 1 to 4, further comprising: When it is determined that the train voltage obtained by the vacuum circuit breaker executing the operation instruction does not meet the train overvoltage condition, train alarm information is generated.

8. A system for suppressing train operation overvoltage, comprising: Collection module, used to obtain train operation information; as well as A control module is used for, in response to receiving an operation instruction about a vacuum circuit breaker, obtaining overvoltage data related to the operation instruction from an overvoltage database, screening the overvoltage data, and obtaining an operation response time and a target phase angle that match the operation instruction, wherein the operation response time represents the response time of executing the operation instruction when the phase angle of the vacuum circuit breaker is the target phase angle, and the target phase angle represents that the vacuum circuit breaker executes the operation instruction under the phase angle to meet the train overvoltage condition, and controlling the vacuum circuit breaker to execute the operation instruction according to the operation response time and the target phase angle.

9. A train comprising: vacuum circuit breakers, traction transformers and grounding devices; Wherein, the vacuum circuit breaker, the traction transformer and the grounding device are all connected to a voltage transformer, and the voltage transformer is connected to the system as claimed in claim 8, for transmitting voltage information of the vacuum circuit breaker and the traction transformer to the acquisition module.

10. The train according to claim 9, wherein: The main line of the train is connected to a current transformer, and the current transformer is connected to the acquisition module, so as to transmit the current information of the main line to the acquisition module.

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