Electric locomotive mutual standby double-main-circuit-breaker automatic emergency control system

Abstract

The invention relates to the technical field of railway electric locomotive circuit breakers, in particular to an automatic emergency control system for mutual standby double main circuit breakers of an electric locomotive, which can solve the problem that the locomotive is easily broken due to the fault of an existing single main circuit breaker to a certain extent. The system comprises a circuit breaker A, a controller A, a circuit breaker B, a controller B, a mounting plate, an automatic emergency controller and a monitoring background. The circuit breakers A and B are mounted on the mounting plate, the controllers respectively control and monitor the corresponding circuit breakers and transmit information to the automatic emergency controller, and the automatic emergency controller receives instructions of a locomotive control room and sends action instructions to the controller A or the controller B in turn, so that the circuit breakers act alternately and are standby for each other, and when fault information is received, the controller A and the controller B are switched on. And the automatic emergency controller stops sending an instruction to the fault circuit breaker, switches to another normal circuit breaker, and sends fault alarm information to the monitoring background through wireless communication.

Description

Technical Field

[0001] The present application relates to the technical field of railway electric locomotive circuit breakers, and in particular to an automatic emergency control system for electric locomotives with dual backup main circuit breakers. Background Art

[0002] In the railway transportation industry, electric locomotives are crucial traction power equipment, and their operational reliability and stability are directly linked to the safety and efficiency of rail transportation. Main circuit breakers, key components of electric locomotives, are responsible for closing and disconnecting locomotive load currents, as well as interrupting the main circuit short-circuit current in the event of a short-circuit fault. However, the current railway electric locomotive industry generally operates with a single main circuit breaker, a situation that presents numerous problems and risks.

[0003] Currently, the single main circuit breaker design of existing locomotives is primarily based on a single circuit breaker and lacks an effective redundant backup mechanism. During normal operation, the single main circuit breaker can only meet the basic operating requirements of the locomotive and provide circuit on / off control. However, if a main circuit breaker fails, such as when it is abnormally closed or opened, or when the control voltage is abnormal, the entire locomotive's main circuit will cease to function properly, directly resulting in a loss of traction and potentially even a serious breakdown accident. Statistics show that temporary locomotive shutdowns due to main circuit breaker failures account for a high proportion of railway failure statistics, seriously impacting the normal order and operational efficiency of railway transportation.

[0004] Furthermore, existing single-main circuit breakers are subject to maintenance delays. Due to the lack of real-time fault monitoring and remote alarm capabilities, maintenance personnel often only detect problems after the locomotive exhibits obvious fault symptoms, making it difficult to predict potential failures in advance. This not only increases the difficulty and cost of maintenance but can also cause the locomotive to continue operating in a faulty state, further expanding the scope of the fault and the extent of the damage.

[0005] In response to the above problems, although the industry has realized the limitations of the single main circuit breaker operation mode, there is currently no mature and widely used solution. Some locomotives have tried to improve reliability by adding backup circuit breakers, but these backup circuit breakers usually use manual switching, which is cumbersome and time-consuming to operate and difficult to put into use quickly in an emergency.

[0006] Therefore, there is an urgent need for a system that can realize automatic emergency switching of the main circuit breaker to improve the reliability and safety of locomotive operation, while making it easier for maintenance personnel to grasp the equipment status in a timely manner and handle faults in advance. Summary of the Invention

[0007] In order to solve the problem that a single main circuit breaker of an existing railway electric locomotive is prone to breakdown accidents after a failure, the present application provides an automatic emergency control system for a mutual backup dual main circuit breaker of an electric locomotive.

[0008] The embodiment of the present application is implemented as follows:

[0009] In a first aspect, the present application provides an automatic emergency control system for electric locomotives with dual-main circuit breakers for mutual backup, comprising circuit breaker A, controller A, circuit breaker B, controller B, a mounting plate, an automatic emergency controller, and a monitoring backend;

[0010] The circuit breaker A and the circuit breaker B are installed on the mounting plate;

[0011] Controller A is installed on one side of circuit breaker A and is used to control and monitor circuit breaker A;

[0012] Controller B is installed on one side of circuit breaker B and is used to control and monitor circuit breaker B;

[0013] Controller A and controller B transmit the monitored circuit breaker status information and fault information to the automatic emergency controller respectively;

[0014] The automatic emergency controller receives the action instructions for the circuit breaker from the locomotive control room, and sends the action instructions to controller A or controller B in turn to control the circuit breaker A or circuit breaker B to act alternately and realize mutual backup;

[0015] When the automatic emergency controller receives fault information from controller A or controller B, it stops sending action instructions to the corresponding faulty controller and continues sending action instructions to the other controller to control the action of the other circuit breaker.

[0016] In one possible implementation, after the automatic emergency controller receives fault information from controller A or controller B, it sends circuit breaker fault alarm information to the circuit breaker monitoring background of the locomotive's locomotive depot via wireless communication. Maintenance personnel can query information such as the number of operations, fault time, and fault status of circuit breakers A and B from the monitoring background.

[0017] In a possible implementation, the fault information sent by the controller A or controller B to the automatic emergency controller includes one or more of closing abnormality, opening abnormality, control voltage abnormality, fault time, and number of actions.

[0018] In one possible implementation, the incoming main circuits of the circuit breaker A and the circuit breaker B are connected in parallel, and the incoming main circuit is connected to the roof pantograph. The outgoing main circuits are also connected in parallel, and the outgoing main circuit is connected to the in-vehicle transformer.

[0019] In one possible implementation, the circuit breaker A and the circuit breaker B can also be in natural isolation mode; in natural isolation mode, the main circuit on the incoming side of the circuit breaker A is connected to the roof pantograph A, the main circuit on the incoming side of the circuit breaker B is connected to the roof pantograph B, and the main circuit on the outgoing side is in parallel, and the main circuit on the outgoing side is connected to the transformer in the vehicle.

[0020] In a possible implementation, the automatic emergency controller performs a security verification on the action instruction before sending the action instruction, and sends the action instruction to the corresponding controller only after the verification is passed.

[0021] In a possible implementation, the controller A and the controller B are respectively connected to the automatic emergency controller via independent communication lines to ensure the stability and reliability of information transmission.

[0022] In a possible implementation, the automatic emergency controller is internally provided with a backup power supply. When the normal power supply of the locomotive fails, the backup power supply automatically starts to ensure the normal operation of the automatic emergency controller.

[0023] In a possible implementation, the automatic emergency controller can record historical operating data and fault records of circuit breaker A and circuit breaker B, providing data support for subsequent fault analysis and system optimization.

[0024] In a possible implementation, the monitoring background has data statistics and analysis functions, and can generate reports and charts on the operating status of the circuit breaker, visually displaying the operating status and fault trends of the circuit breaker.

[0025] The technical solution provided by this application can achieve at least the following beneficial effects:

[0026] The present application provides an automatic emergency control system for electric locomotives with dual main circuit breakers for mutual backup. By changing the operating mode of a single main circuit breaker that controls the main circuit of a railway electric locomotive to a dual main circuit breaker operating mode that can automatically switch in an emergency, the probability of the locomotive stopping due to a main circuit breaker failure is greatly reduced, thereby improving the reliability of the railway electric locomotive operation.

[0027] In addition, after the automatic emergency controller in this application receives the fault information of controller A or controller B, it sends the circuit breaker fault alarm information to the circuit breaker monitoring background of the locomotive's locomotive depot through wireless communication. The locomotive maintenance personnel can query the number of operations, fault time, fault status and other information of circuit breaker A and circuit breaker B from the monitoring background, which helps the locomotive maintenance personnel to understand the circuit breaker fault status in time, analyze the cause of the fault, formulate maintenance plans in advance, and prepare spare parts in advance, thereby reducing maintenance time and improving locomotive operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0029] Figure 1 This is a structural diagram of an automatic emergency control system for a double-main circuit breaker with mutual backup for an electric locomotive, as shown in an exemplary embodiment of the present application;

[0030] Figure 2 1 is a schematic structural diagram of a parallel structure of the incoming and outgoing sides of a circuit breaker main circuit, shown in an exemplary embodiment of the present application;

[0031] Figure 3 It is a structural diagram of a circuit breaker main circuit with natural isolation on the incoming side and parallel structure on the outgoing side, shown in an exemplary embodiment of the present application.

[0032] Reference numerals:

[0033] 1. Circuit breaker A; 11. Main contacts of circuit breaker A; 2. Controller A; 3. Circuit breaker B; 31. Main contacts of circuit breaker B; 4. Controller B; 5. Mounting plate; 6. Automatic emergency controller; 7. Monitoring background. DETAILED DESCRIPTION

[0034] In order to make the purpose, implementation methods and advantages of the present application clearer, the exemplary implementation methods of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, not all of the embodiments. It should be understood that the specific embodiments described here are only used to explain the present application and are not used to limit the present application.

[0035] It should be noted that the brief descriptions of terms in this application are only for the purpose of facilitating the understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and usual meanings.

[0036] In the specification and claims of this application and the accompanying drawings, the terms "first," "second," "third," etc. are used to distinguish similar or similar objects or entities, and are not necessarily intended to limit a particular order or sequence, unless otherwise noted. It should be understood that the terms used in this manner are interchangeable under appropriate circumstances.

[0037] The terms "comprise," "include," and "have," and any variations thereof, are intended to cover but not exclude inclusion; for example, a product or device comprising a list of components is not necessarily limited to all the components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0038] Before explaining the automatic emergency control system of the electric locomotive with dual main circuit breakers in mutual backup provided by the embodiment of the present application, the application scenario and implementation environment of the embodiment of the present application are first introduced.

[0039] In the railway transportation industry, electric locomotives are crucial traction power equipment, and their operational reliability and stability are directly linked to the safety and efficiency of rail transportation. Main circuit breakers, key components of electric locomotives, are responsible for closing and disconnecting locomotive load currents, as well as interrupting the main circuit short-circuit current in the event of a short-circuit fault. However, the current railway electric locomotive industry generally operates with a single main circuit breaker, a situation that presents numerous problems and risks.

[0040] Currently, the single main circuit breaker design of existing locomotives is primarily based on a single circuit breaker and lacks an effective redundant backup mechanism. During normal operation, the single main circuit breaker can only meet the basic operating requirements of the locomotive and provide circuit on / off control. However, if a main circuit breaker fails, such as when it is abnormally closed or opened, or when the control voltage is abnormal, the entire locomotive's main circuit will cease to function properly, directly resulting in a loss of traction and potentially even a serious breakdown accident. Statistics show that temporary locomotive shutdowns due to main circuit breaker failures account for a high proportion of railway failure statistics, seriously impacting the normal order and operational efficiency of railway transportation.

[0041] Furthermore, existing single-main circuit breakers are subject to maintenance delays. Due to the lack of real-time fault monitoring and remote alarm capabilities, maintenance personnel often only detect problems after the locomotive exhibits obvious fault symptoms, making it difficult to predict potential failures in advance. This not only increases the difficulty and cost of maintenance but can also cause the locomotive to continue operating in a faulty state, further expanding the scope of the fault and the extent of the damage.

[0042] In response to the above problems, although the industry has realized the limitations of the single main circuit breaker operation mode, there is currently no mature and widely used solution. Some locomotives have tried to improve reliability by adding backup circuit breakers, but these backup circuit breakers usually use manual switching, which is cumbersome and time-consuming to operate and difficult to put into use quickly in an emergency.

[0043] Therefore, there is an urgent need for a system that can realize automatic emergency switching of the main circuit breaker to improve the reliability and safety of locomotive operation, while making it easier for maintenance personnel to grasp the equipment status in a timely manner and handle faults in advance.

[0044] Based on this, the present application provides an automatic emergency control system for electric locomotives with dual-main circuit breakers for mutual backup, aiming to solve the problem that the failure of the existing single-main circuit breaker can easily lead to the destruction of the locomotive. The system includes circuit breaker A, controller A, circuit breaker B, controller B, mounting plate, automatic emergency controller and monitoring background. Circuit breakers A and B are installed on the mounting plate. The controllers respectively control and monitor the corresponding circuit breakers and transmit information to the automatic emergency controller. The automatic emergency controller receives instructions from the locomotive control room and sends action instructions to controller A or B in turn, realizing alternating action of the circuit breakers and mutual backup. When receiving fault information, the automatic emergency controller stops sending instructions to the faulty circuit breaker, switches to another normal circuit breaker, and sends fault alarm information to the monitoring background via wireless communication.

[0045] The present invention improves the operating reliability of the locomotive, facilitates maintenance personnel to understand the fault status in advance and formulate maintenance plans, reduces maintenance time, and improves the operating efficiency of the locomotive.

[0046] Next, the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems will be described in detail through embodiments and in combination with the accompanying drawings. The various embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments.

[0047] Figure 1 It is a structural diagram of an automatic emergency control system for electric locomotive mutual backup dual main circuit breakers shown in an exemplary embodiment of the present application.

[0048] In an exemplary embodiment, Figure 1 As shown, an automatic emergency control system for electric locomotive with dual main circuit breakers for mutual backup is provided. In this embodiment, the system may include circuit breaker A, controller A, circuit breaker B, controller B, mounting plate, automatic emergency controller and monitoring background;

[0049] The circuit breaker A1 and the circuit breaker B3 are installed on the mounting plate;

[0050] Controller A2 is installed on one side of circuit breaker A1 and is used to control and monitor circuit breaker A;

[0051] Controller B4 is installed on one side of circuit breaker B3 and is used to control and monitor circuit breaker B;

[0052] Controller A2 and controller B4 transmit the monitored circuit breaker status information and fault information to the automatic emergency controller respectively;

[0053] The automatic emergency controller 6 receives the action instructions for the circuit breaker from the locomotive control room, and sends the action instructions to the controller A2 or the controller B4 in turn to control the circuit breaker A1 or the circuit breaker B3 to act alternately and realize mutual backup;

[0054] When the automatic emergency controller receives fault information from controller A2 or controller B4, it stops sending action instructions to the corresponding faulty controller and continues sending action instructions to the other controller to control the action of the other circuit breaker.

[0055] Figure 2 FIG1 is a schematic structural diagram of a parallel structure of the incoming and outgoing sides of a circuit breaker main circuit, shown in an exemplary embodiment of the present application. Figure 3 It is a structural diagram of a circuit breaker main circuit with natural isolation on the incoming side and parallel structure on the outgoing side, shown in an exemplary embodiment of the present application.

[0056] In some possible embodiments, such as Figure 1 As shown, the specific structure of the system includes circuit breaker A1, controller A2, circuit breaker B3, controller B4, installation board 5, automatic emergency controller 6, and monitoring background 7.

[0057] Circuit breaker A1 and circuit breaker B3 are installed on the mounting plate 5, controller A2 is installed on one side of circuit breaker A1, controller B4 is installed on one side of circuit breaker B3, automatic emergency controller 6 is installed inside the locomotive, and monitoring background 7 is installed in the locomotive depot.

[0058] Controller A2 controls and monitors circuit breaker A1 , and controller B4 controls and monitors circuit breaker B3 . Controller A1 and controller B4 transmit the monitored circuit breaker status information and fault information to the automatic emergency controller 6 .

[0059] The automatic emergency controller 6 receives the action instructions for the circuit breaker from the locomotive control room, and sends the action instructions to the controller A2 or the controller B4 in turn, thereby controlling the circuit breaker A1 or the circuit breaker B3 to act alternately.

[0060] When the automatic emergency controller 6 receives fault information from controller A2, it will stop sending action instructions to controller A2 and only continue to send action instructions to controller B4 to control the operation of circuit breaker B3; similarly, when the automatic emergency controller 6 receives fault information from controller B4, it will stop sending action instructions to controller B4 and only continue to send action instructions to controller A2 to control the operation of circuit breaker A1. Circuit breakers A1 and B3 operate in turn and serve as backup for each other.

[0061] After receiving the fault information from controller A2 or controller B4, the automatic emergency controller 6 sends the circuit breaker fault alarm information to the circuit breaker monitoring background 7 of the locomotive depot via wireless communication. Maintenance personnel can query the number of operations, fault time, fault status and other information of circuit breakers A1 and B3 from the monitoring background 7.

[0062] The fault information sent by the controller A2 or the controller B4 to the automatic emergency controller 6 includes: abnormal closing, abnormal opening, abnormal control voltage, fault time, number of actions and other information.

[0063] like Figure 2 As shown, the incoming side main circuits of circuit breaker A1 and circuit breaker B3 are connected in parallel, and the incoming side main circuit is connected to the pantograph on the roof. The incoming side main circuit passes through the main contact 11 of circuit breaker A and the main contact 31 of circuit breaker B to the outgoing side. The outgoing side main circuit is also connected in parallel, and the outgoing side main circuit is connected to the transformer in the vehicle.

[0064] like Figure 3 As shown, circuit breaker A1 and circuit breaker B3 can also be in natural isolation mode. The main circuit on the incoming side of circuit breaker A1 is connected to the roof pantograph A, and the main circuit on the incoming side of circuit breaker B3 is connected to the roof pantograph B. The two main circuits on the incoming side are respectively connected to the outgoing side through the main contact 11 of circuit breaker A and the main contact 31 of circuit breaker B. The main circuits on the outgoing side are connected in parallel and are connected to the transformer in the vehicle.

[0065] It should be understood that, although the various steps in the flowcharts involved in the above-described embodiments are displayed in sequence according to the instructions, these steps are not necessarily executed in the order indicated. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the flowcharts involved in the above-described embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0066] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The embodiments described above merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An automatic emergency control system for electric locomotives with dual backup main circuit breakers, characterized in that: Including circuit breaker A, controller A, circuit breaker B, controller B, mounting plate, automatic emergency controller and monitoring background; The circuit breaker A and the circuit breaker B are installed on the mounting plate; Controller A is installed on one side of circuit breaker A and is used to control and monitor circuit breaker A; Controller B is installed on one side of circuit breaker B and is used to control and monitor circuit breaker B; Controller A and controller B transmit the monitored circuit breaker status information and fault information to the automatic emergency controller respectively; The automatic emergency controller receives the action instructions for the circuit breaker from the locomotive control room, and sends the action instructions to controller A or controller B in turn to control the circuit breaker A or circuit breaker B to act alternately and realize mutual backup; When the automatic emergency controller receives fault information from controller A or controller B, it stops sending action instructions to the corresponding faulty controller and continues sending action instructions to the other controller to control the action of the other circuit breaker.

2. The electric locomotive mutual backup dual main circuit breaker automatic emergency control system according to claim 1, characterized in that: After receiving the fault information of controller A or controller B, the automatic emergency controller sends the circuit breaker fault alarm information to the circuit breaker monitoring background of the locomotive depot via wireless communication. Maintenance personnel can query the number of operations, fault time, fault status and other information of circuit breakers A and B from the monitoring background.

3. The electric locomotive mutual backup dual main circuit breaker automatic emergency control system according to claim 1, characterized in that: The fault information sent by the controller A or the controller B to the automatic emergency controller includes one or more of closing abnormality, opening abnormality, control voltage abnormality, fault time and number of actions.

4. The electric locomotive mutual backup dual main circuit breaker automatic emergency control system according to claim 3, characterized in that: The incoming line main circuits of the circuit breaker A and the circuit breaker B are connected in parallel, and the incoming line main circuit is connected to the pantograph on the roof. The outgoing line main circuits are also connected in parallel, and the outgoing line main circuit is connected to the transformer in the vehicle.

5. The electric locomotive mutual backup dual main circuit breaker automatic emergency control system according to claim 1, characterized in that: The circuit breaker A and circuit breaker B can also be in natural isolation mode; in natural isolation mode, the main circuit on the incoming side of circuit breaker A is connected to the roof pantograph A, the main circuit on the incoming side of circuit breaker B is connected to the roof pantograph B, and the main circuit on the outgoing side is in parallel, and the main circuit on the outgoing side is connected to the transformer in the vehicle.

6. The electric locomotive mutual backup dual main circuit breaker automatic emergency control system according to claim 5, characterized in that: The automatic emergency controller performs a safety verification on the action instruction before sending the action instruction, and sends it to the corresponding controller only after the verification is passed.

7. The electric locomotive mutual backup dual main circuit breaker automatic emergency control system according to claim 1, characterized in that: The controller A and the controller B are connected to the automatic emergency controller via independent communication lines respectively, to ensure the stability and reliability of information transmission.

8. The electric locomotive mutual backup dual main circuit breaker automatic emergency control system according to claim 1, characterized in that: The automatic emergency controller is internally provided with a backup power supply. When the normal power supply of the locomotive fails, the backup power supply automatically starts to ensure the normal operation of the automatic emergency controller.

9. The electric locomotive mutual backup dual main circuit breaker automatic emergency control system according to claim 1, characterized in that: The automatic emergency controller can record the historical operating data and fault records of circuit breaker A and circuit breaker B, providing data support for subsequent fault analysis and system optimization.

10. The electric locomotive mutual backup dual main circuit breaker automatic emergency control system according to claim 1, characterized in that: The monitoring background has data statistics and analysis functions, and can generate reports and charts on the operating status of the circuit breaker, intuitively displaying the operating status and fault trends of the circuit breaker.

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