Train control method under energy constraint conditions, apparatus, device and medium

Abstract

The present invention relates to a train control method under energy constraint conditions, an apparatus, a device, and a medium. The method comprises: first using a power supply partition as a line resource; and then, on the basis of a resource management mode, starting train operation on the basis of the number of vehicles accommodated in the power supply partition and staggered peaks, so as to control the operation of a train in the power supply partition. Compared with the existing technology, the present invention has advantages such as ensuring that the risk of power failure of a contact line is reduced, thereby ensuring the reliability of operation and prolonging the service life of a device.

Description

Train control method, device, equipment and medium under energy constraint TECHNICAL FIELD

[0001] The present application relates to a train control method, device, equipment and medium under energy constraint. BACKGROUND

[0002] Current rail transit lines are electrified lines, and are configured with catenary power supply partitions. Each power supply partition can accommodate a certain number of trains to run, i.e., the number of trains accommodated. In a high-density line operation line, once other operation emergencies occur, so that more than the designed number of trains run in a power supply partition, or because multiple trains start at the same time, the current peak exceeds the power supply capacity, it may cause power supply failure in the entire power supply partition, and further cause operation paralysis. In the existing train control system, there is a lack of protection scenarios under the energy supply constraint.

[0003] During the reconstruction of the line, because the signal system and the power supply system are reconstructed simultaneously, and the difference between the signal system and the power supply system matched before and after the reconstruction, the capacity of the traction transformer of the existing traction substation is difficult to adapt to the operation capacity after the reconstruction, which may cause the number of trains running in the power supply partition to exceed the design standard of the power supply system, thereby greatly increasing the probability of power supply failure.

[0004] After searching, Chinese patent publication No. CN118254849A discloses a control method, device and control equipment for rail trains, specifically discloses determining a first number of rail trains and a second number of rail trains, the first number of rail trains being the maximum number of rail trains that can be started simultaneously in the current power supply partition, and the second number of rail trains being the number of rail trains that have been started in the current power supply partition; and controlling the running state of the rail trains that have not been started in the current power supply partition according to the first number of rail trains and the second number of rail trains. However, the patent does not control the trains exceeding the rated number entering the power supply partition, only controls the trains about to start, and does not reflect the control of staggered starting of trains in the power supply area, which may cause multiple trains (although within the rated number of trains allowed to run in the power supply partition) to start at the same time, and the superimposed power consumption peak to exceed the power supply partition power grid load. Therefore, the control strategy of the existing patent cannot effectively avoid the entry of overloaded trains in the power supply partition, so as to cause the power consumption of multiple trains running and the power consumption of multiple trains starting to be superimposed, and further cause the power supply partition power grid load to be exceeded.

[0005] The prior art is basically related research starting from the electrical and power equipment itself. In the field of contact network power supply of rail transit, there is no protection method through the train control system in this scenario. Therefore, how to avoid power supply imbalance leading to power grid paralysis becomes a technical problem to be solved. SUMMARY

[0006] The purpose of the present application is to provide a train control method, device, equipment and medium under energy constraint conditions to overcome the defects of the prior art.

[0007] The purpose of the present application can be achieved by the following technical solutions:

[0008] According to the first aspect of the present application, a train control method under energy constraint conditions is provided. The method first takes the power supply partition as a line resource, and then controls the train running in the power supply partition based on the resource management mode according to the number of trains in the power supply partition and the staggered start of train operation.

[0009] As a preferred technical solution, the method specifically comprises:

[0010] Step S1, the trackside train control system real-time statistics all power supply partitions in the jurisdiction of the real-time train running quantity, when the real-time train running quantity of a power supply partition exceeds the set number of trains, the other trains are controlled to be prohibited to enter the power supply partition;

[0011] Step S2, when the trackside train control system detects that multiple trains in the power supply partition need to start at the same time, the train in the power supply partition is controlled to be sent in order according to the power supply partition resource management order.

[0012] As a preferred technical solution, the trackside train control system clearly defines the range of the power supply partition and the number of trains in the power supply partition.

[0013] As a preferred technical solution, the trackside train control system supports the configuration of no intersection, intersection and containing relationship between multiple power supply partitions.

[0014] As a preferred technical solution, the trackside train control system real-time statistics the number of trains running tasks intersecting with the power supply partition.

[0015] As a preferred technical solution, if the difference between the number of trains in the current power supply partition and the number of trains running tasks intersecting with the current power supply partition is greater than or equal to 1, the trackside train control system authorizes the running task of the subsequent train to enter the current power supply partition, otherwise, it needs to further judge the difference between the number of trains in the current power supply partition and the number of trains in the dynamic running train in the current power supply partition.

[0016] As a preferred technical solution, the trackside train control system is configured to count the number of trains in dynamic operation in the current power supply partition in real time.

[0017] As a preferred technical solution, if the difference between the number of trains that can be accommodated in the current power supply partition and the number of trains in dynamic operation in the current power supply partition is greater than 0, the trackside train control system starts the trains according to the sequence of the operation plan; otherwise, the trackside train control system controls the operation tasks of the subsequent trains to have no intersection with the current power supply partition, and prohibits all trains from entering the current power supply partition.

[0018] As a preferred technical solution, the staggered start of the train is specifically as follows:

[0019] When there is a train in the current power supply partition that is parked and is about to start the operation task, the trackside train control system initiates the command of authorization for starting the train to the vehicle subsystem in sequence according to the sequence of the operation plan, so as to stagger the start of the train.

[0020] As a preferred technical solution, when the train leaves the current power supply partition, the difference between the number of trains that can be accommodated in the current power supply partition and the number of trains having the operation task with the intersection with the power supply partition is determined again in real time, so as to determine whether the operation task of the subsequent train can enter the current power supply partition.

[0021] According to a second aspect of the present application, a device for a train control method under the energy constraint condition is provided, which comprises a train control control module arranged in a trackside train control system, configured to count the number of trains in real time in all power supply partitions in a jurisdiction in real time, and when the number of trains in real time in a power supply partition exceeds a set number of accommodated trains, control other trains to be prohibited from entering the power supply partition; and when it is detected that multiple trains in the power supply partition need to be started at the same time, control the trains in the power supply partition to be sent in sequence according to the resource management order of the power supply partition.

[0022] As a preferred technical solution, the train control control module allows only one train to start at the same time in the number range of trains in a rated operation in a power supply partition, and the subsequent trains to be started are staggered in turn.

[0023] As a preferred technical solution, the train control control module controls the trains entering the power supply partition and the trains starting from static to stagger in sequence.

[0024] As a preferred technical solution, the train control control module supports the train control strategy of a double-sided region, and when the power supply partition has an intersection with a split-phase region, the train control strategy of the power supply partition and the split-phase region can be supported.

[0025] According to a third aspect of the present application, there is provided an electronic device comprising a memory having a computer program stored thereon and a processor which, when executing the program, implements the method.

[0026] According to a fourth aspect of the present application, there is provided a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method.

[0027] Compared with the prior art, the present application has the following advantages:

[0028] 1) The present application controls the train operation in the power supply partition according to the number of vehicles accommodated in the power supply partition and the peak-shifting starting of the train operation, ensures to reduce the risk of failure of the overhead line power supply, and further ensures the reliability of operation, while prolonging the service life of the equipment;

[0029] 2) The present application implements train control strategies for different power supply partitions based on the power supply capacity and the rail transportation demand, and the intersection of multiple power supply partitions;

[0030] 3) The present application reduces the failure of the power supply partition, prolongs the service life of the traction power supply system, and improves the availability of the signal system;

[0031] 4) The present application can control the train operation in the power supply partition and the split-phase area, on the one hand, to avoid over-capacity power supply of the traction power supply system, and on the other hand, to effectively reduce the probability of train parking in the split-phase area, thereby reducing the power supply failure. BRIEF DESCRIPTION OF DRAWINGS

[0032] Fig. 1 is a schematic diagram of a power supply partition arrangement;

[0033] Fig. 2 is a specific flowchart of the method of the present application. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.

[0035] The present application is a train control method under energy constraints, comprising: a train control control module is arranged in a trackside train control system, and the real-time number of trains in all power supply partitions in the jurisdiction is counted; when a power supply partition exceeds a set number of vehicles, other trains are controlled to enter the area; when it is detected that multiple trains in the power supply partition need to start at the same time, the trains in the power supply partition are controlled to be sent in order according to the resource management order of the power supply partition.

[0036] As shown in FIG. 1, for the topology logic of power supply partition, the wayside train control system can support the train control strategy of the double-side region (such as power supply partition 1);

[0037] When the power supply partition intersects with the phase separation region, the train control strategy of both the power supply partition 1 and the phase separation region 1 can be supported.

[0038] As shown in FIG. 2, the train control method under the energy constraint condition of the present application specifically comprises the following steps:

[0039] First step: the wayside train control system determines the range of the power supply partition and the number of vehicles that the power supply partition can contain, and supports the configuration of no intersection, intersection and containing relationship among multiple power supply partitions.

[0040] Second step: the wayside train control system real-time counts the number of trains that have intersection with the train operation task and the power supply partition. If the difference between the number of vehicles that the current power supply partition can contain and the number of trains that have intersection with the train operation task and the power supply partition is greater than or equal to 1, the wayside train control system authorizes the subsequent train operation task to enter the current power supply partition, otherwise, it is necessary to determine the difference between the number of vehicles that the current power supply partition can contain and the number of trains that are in dynamic operation in the power supply partition.

[0041] Third step: the wayside train control system real-time counts the number of trains that are in dynamic operation in the power supply partition. If the difference between the number of vehicles that the current power supply partition can contain and the number of trains that are in dynamic operation in the power supply partition is greater than 0, there is a train that stops and is about to start to execute the operation task in the power supply partition, and the wayside train control system sequentially initiates the command of authorizing the train to start to the vehicle subsystem according to the sequence of the operation plan, so as to ensure the peak-shaving start of the train. For the train that enters the current power supply partition according to the operation plan, according to the sequence of the operation plan, if the sequence number of the train is less than or equal to the difference (i.e. the difference between the number of vehicles that the current power supply partition can contain and the number of trains that are in dynamic operation in the power supply partition), the wayside train control system authorizes the train operation plan to enter the power supply partition and authorizes the train to enter the power supply partition.

[0042] If the difference between the number of vehicles that the current power supply partition can contain and the number of trains that are in dynamic operation in the power supply partition is less than or equal to 0, the wayside train control system controls the subsequent train operation task to have no intersection with the current power supply partition, and prohibits all trains from entering the current power supply partition.

[0043] Fourth step: when the train drives out of the current power supply partition, the second step is turned to, and the difference between the number of vehicles that the current power supply partition can contain and the number of trains that have intersection with the train operation task and the power supply partition is real-time determined, so as to decide whether the subsequent train operation task can enter the power supply partition.

[0044] The main innovation points of the present application include:

[0045] Firstly, when one power supply partition exceeds the set number of vehicles, the present application controls other trains to be prohibited from entering the current power supply partition. The prior art generally does not control the entry of trains exceeding the rated number into the power supply partition, and only controls the trains about to start. The safety of the present application is higher.

[0046] Secondly, when it is detected that multiple trains in a power supply partition need to start at the same time, the present application controls the trains in the power supply partition to be sent with start authorization in sequence according to the resource management sequence of the power supply partition. That is, the present application allows only one train to start at the same time within the rated number of trains in a power supply partition, and the subsequent trains to be started are started in turn. The prior art generally does not control the simultaneous start of multiple trains, which may cause multiple trains to start at the same time (although within the rated number of trains allowed to run in the power supply partition), and the superimposed peak power consumption causes the power grid load of the power supply partition to exceed.

[0047] Thirdly, the number of trains allowed to run in the power supply partition is taken as a reference object, on the basis of which the trains entering the power supply partition are controlled, and the trains in the power supply partition are started in sequence. This can not only avoid the superimposition of peak power consumption, but also avoid the overload of trains outside the power supply partition entering the current power supply partition, thereby ensuring the balance between operation efficiency and power supply safety.

[0048] The control strategy of the prior art cannot effectively avoid the entry of overloaded trains in the power supply partition into the power supply partition, thereby causing the superimposition of the power consumption of multiple trains running and the power consumption of multiple trains starting, and further causing the power grid load of the power supply partition to exceed.

[0049] The above is an introduction to the method embodiment. The following describes the scheme of the present application through a device embodiment.

[0050] The device for the train control method under the energy constraint condition comprises a train control control module, which is arranged in a trackside train control system and is used for real-time counting of the real-time number of trains running in all power supply partitions in the jurisdiction. When the real-time number of trains running in one power supply partition exceeds the set number of vehicles, the other trains are controlled to be prohibited from entering the power supply partition. When it is detected that multiple trains in the power supply partition need to start at the same time, the trains in the power supply partition are controlled to be sent with start authorization in sequence according to the resource management sequence of the power supply partition.

[0051] The power supply partition is used as a line resource, and based on a resource management mode, the train operation in the power supply partition is controlled according to the number of trains accommodated by the power supply partition and the peak-shifting starting of the train, so as to ensure the reduction of the risk of power supply failure of the overhead line, and further ensure the reliability of operation, and prolong the service life of the equipment.

[0052] The train control module allows only one train to start at the same time in the range of the rated number of trains running in one power supply partition, and the subsequent trains to be started are sequentially peak-shifting started.

[0053] The train control module controls the trains entering the power supply partition and sequentially peak-shifting starts the trains starting from static to starting in the power supply partition.

[0054] The train control module supports the train control strategy of the double-sided area, and when the power supply partition and the phase separation area have an intersection, the train control strategy of the two areas of the power supply partition and the phase separation area can be supported.

[0055] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the described modules can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0056] The embodiment of the application also provides an electronic device including a central processing unit (CPU), which can perform various appropriate actions and processes according to computer program instructions stored in a read-only memory (ROM) or loaded from a storage unit into a random access memory (RAM). In the RAM, various programs and data required for device operation can also be stored. The CPU, ROM and RAM are connected to each other through a bus. An input / output (I / O) interface is also connected to the bus.

[0057] A plurality of components in the device are connected to the I / O interface, including: an input unit, such as a keyboard, a mouse, etc.; an output unit, such as various types of displays, speakers, etc.; a storage unit, such as a magnetic disk, an optical disk, etc.; and a communication unit, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit allows the device to exchange information / data with other devices through a computer network, such as the Internet, and / or various telecommunications networks.

[0058] The processing units perform the various methods and processes described above, such as the inventive methods. For example, in some embodiments, the inventive methods can be implemented as a computer software program tangibly embodied in a machine readable medium, such as a storage unit. In some embodiments, portions of or all of the computer program can be loaded and / or installed onto the device via, e.g., the ROM and / or the communications unit. When the computer program is loaded onto the RAM and executed by the CPU, one or more of the steps of the inventive methods described above can be performed. Alternatively, in other embodiments, the CPU can be configured to perform the inventive methods by way of other means, such as by way of firmware.

[0059] The functionality described above in this document can be performed, at least in part, by one or more hardware logic components. For example, and without limitation, illustrative types of hardware logic components that can be used include Field-programmable Gate Arrays (FPGAs), Application-specific Integrated Circuits (ASICs), Application-specific Standard Products (ASSPs), System-on-a-chip systems (SOCs), Complex Programmable Logic Devices (CPLDs), etc.

[0060] Program code for carrying out the methods of the present application can be written in any combination of one or more programming languages. This program code can be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the program code, when executed by the processor or controller, produces a means for implementing the functions / acts specified in the flowcharts and / or block diagrams. The program code can be retrieved from a machine-readable medium or device, a storage medium, a memory medium, a tangible medium, or a non-transitory medium. The program code can be executed by a machine, such as a computer, which can be a special purpose computer or a general purpose computer. The program code can be executed by a controller or a processor, which can be a special purpose controller or a general purpose controller.

[0061] In the context of the present application, a machine-readable medium can be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium can include but is not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the machine-readable storage medium will include one or more lines of a computer program code, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0062] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements shall be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A train control method under an energy constraint, characterized by, The method first takes the power supply partition as a line resource; then controls the train operation in the power supply partition based on the resource management mode according to the number of trains that the power supply partition can accommodate and the peak-shaving train start.

2. The train control method under energy constraints according to claim 1, characterized in that, The method specifically comprises: Step S1, a trackside train control system real-time counts the number of trains running in all power supply partitions in the jurisdiction, and when the number of trains running in a power supply partition exceeds the set number of trains that the power supply partition can accommodate, controls other trains to be prohibited from entering the power supply partition; Step S2, when the trackside train control system detects that multiple trains in the power supply partition need to start at the same time, controls the trains in the power supply partition to send the train departure authorization to the trains in sequence according to the power supply partition resource management sequence.

3. The train control method under energy constraints according to claim 2, characterized in that, The trackside train control system clearly defines the range of the power supply partition and the number of trains that the power supply partition can accommodate.

4. The train control method under energy constraints according to claim 3, characterized in that, The trackside train control system supports the configuration of no intersection, intersection and inclusion between multiple power supply partitions.

5. The train control method under energy constraints according to claim 2, characterized in that, The trackside train control system real-time counts the number of trains running in the power supply partition.

6. The train control method under energy constraints according to claim 5, characterized in that, If the difference between the number of trains that the current power supply partition can accommodate and the number of trains running in the current power supply partition is greater than or equal to 1, the trackside train control system authorizes the running task of the subsequent train to enter the current power supply partition, otherwise, it needs to further judge the difference between the number of trains that the current power supply partition can accommodate and the number of trains in dynamic operation in the current power supply partition.

7. The train control method under energy constraints according to claim 6, characterized in that, The trackside train control system real-time counts the number of trains in dynamic operation in the current power supply partition.

8. The train control method under energy constraints according to claim 7, characterized in that, If the difference between the number of trains that the current power supply partition can accommodate and the number of trains in dynamic operation in the current power supply partition is greater than 0, the trackside train control system starts the train according to the sequence of the operation plan; otherwise, the trackside train control system controls the running task of the subsequent train to have no intersection with the current power supply partition and prohibits all trains from entering the current power supply partition.

9. The train control method under energy constraints according to claim 8, characterized in that, The peak-shaving train start specifically includes: When there is a train in the current power supply partition that is parked and is about to start the running task, the trackside train control system sequentially sends the command of authorizing the train departure to the on-board subsystem according to the sequence of the operation plan, thereby starting the train in peak-shaving.

10. The train control method under energy constraints according to claim 5, characterized in that, When the train drives out of the current power supply partition, the difference between the number of trains that the current power supply partition can accommodate and the number of trains running in the current power supply partition is real-time judged again, thereby deciding whether to authorize the running task of the subsequent train to enter the current power supply partition.

11. An apparatus for a train control method under the energy constraint condition of claim 1, characterized by, The device comprises a train control control module, which is arranged in the trackside train control system and is used for real-time counting the number of trains running in all power supply partitions in the jurisdiction, and when the number of trains running in a power supply partition exceeds the set number of trains that the power supply partition can accommodate, controls other trains to be prohibited from entering the power supply partition; and when detecting that multiple trains in the power supply partition need to start at the same time, controls the trains in the power supply partition to send the train departure authorization to the trains in sequence according to the power supply partition resource management sequence.

12. The apparatus of claim 11, wherein, The train control control module allows only one train to start at the same time in the rated number range of a power supply partition, and the subsequent trains to be started are sequentially started in peak-shaving.

13. The apparatus of claim 11, wherein, The train control module controls the train entering the power supply partition and the train starting in sequence and staggered starting from static to start in the power supply partition.

14. The apparatus of claim 11, wherein, The train control module supports the train control strategy of the double-side area, and when the power supply partition intersects with the split-phase area, the train control strategy of the power supply partition and the split-phase area can be supported.

15. An electronic device comprising a memory and a processor, said memory having stored thereon a computer program, characterized in that, The processor executes the program to implement the method in any one of claims 1-10.

16. A computer readable storage medium having stored thereon a computer program, characterized in that, The program is executed by the processor to implement the method in any one of claims 1-10.

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