A high voltage electrical training system for urban rail vehicles and a control method thereof

Abstract

The present invention discloses a high-voltage electrical training system for urban rail vehicles and a control method thereof. The system includes a driver console, a high-voltage current collector system, a traction converter system, an auxiliary converter system and a load vehicle. The high-voltage current collector system includes a pantograph and a high-voltage electrical box. The traction converter system includes a traction inverter and a traction motor. The auxiliary converter system includes an auxiliary converter and an electrical control cabinet. The output end of the pantograph is connected to the input end of the high-voltage electrical box. The first output end of the high-voltage electrical box is connected to the input end of the traction motor through the traction inverter, and then connected to the input end of the load vehicle. The second output end is connected to the input end of the electrical control cabinet through the auxiliary converter. The pantograph, the high-voltage electrical box, the traction inverter, the traction motor, the auxiliary converter and the electrical control cabinet are all connected to the driver console in communication. The present invention can improve the efficiency of high-voltage electrical training for urban rail vehicles and can be widely used in the field of urban rail vehicle control teaching technology.

Description

Technical Field

[0001] The present invention relates to the technical field of urban rail vehicle control teaching, and in particular to an urban rail vehicle high-voltage electrical training system and a control method thereof. Background Art

[0002] At present, the input voltage of high-voltage electrical equipment of urban rail transit vehicles is DC1500V, which is not conducive to the practical training of urban rail vehicles. The prior art discloses a practical training device for teaching urban rail vehicle control systems. The device simulates the operating conditions of urban rail vehicles through PLC controlled simulation objects, and cannot perform practical operations on urban rail vehicles and high-voltage electrical equipment, resulting in low practical training efficiency. Summary of the invention

[0003] In order to solve the above technical problems, the object of the present invention is to provide an efficient urban rail vehicle high voltage electrical training system and a control method thereof.

[0004] The first technical solution adopted by the present invention is:

[0005] A high-voltage electrical training system for urban rail vehicles comprises a driver console, a high-voltage current collecting subsystem, a traction current conversion subsystem, an auxiliary current conversion subsystem and a load vehicle, wherein the high-voltage current collecting subsystem comprises a pantograph and a high-voltage electrical box, the traction current conversion subsystem comprises a traction inverter and a traction motor, the auxiliary current conversion subsystem comprises an auxiliary current converter and an electrical control cabinet, the pantograph is used to contact with a contact network to receive electricity, the output end of the pantograph is connected to the input end of the high-voltage electrical box through a power line, the first output end of the high-voltage electrical box is connected to the input end of the traction motor through the traction inverter, the output end of the traction motor is connected to the input end of the load vehicle, the second output end of the high-voltage electrical box is connected to the input end of the electrical control cabinet through the auxiliary current converter, the electrical control cabinet is used to provide power for auxiliary electrical equipment on the load vehicle, and the pantograph, the high-voltage electrical box, the traction inverter, the traction motor, the auxiliary current converter and the electrical control cabinet are all communicatively connected to the driver console.

[0006] Furthermore, the driver console includes a controller, a button module and a display module, the output end of the button module is connected to the input end of the controller, the controller is used to control and collect working status of the pantograph, the high-voltage electrical box, the traction inverter, the traction motor, the auxiliary converter and the electrical control cabinet, and the output end of the controller is connected to the input end of the display module.

[0007] Furthermore, the traction converter subsystem further includes a traction control unit, the controller is connected to the traction inverter via the traction control unit, and the controller is used to output a control signal so that the traction inverter outputs a preset voltage to drive the traction motor.

[0008] Furthermore, the high-voltage electrical box includes a box body and a main circuit breaker, a voltage transformer, a first current transformer and a second current transformer arranged in the box body. The output end of the pantograph is connected to the input end of the main circuit breaker through the voltage transformer, the first output end of the main circuit breaker is connected to the input end of the traction motor through the first current transformer and the traction inverter, and the second output end of the main circuit breaker is connected to the input end of the electrical control cabinet through the second current transformer and the auxiliary converter.

[0009] Furthermore, the high-voltage electrical box also includes a grounding isolating switch, which is arranged in the box body and located next to the main circuit breaker. The grounding isolating switch is used to ground the main circuit breaker during inspection and maintenance.

[0010] Furthermore, the high-voltage electrical box also includes a workshop power supply interface, which is arranged in the box body, and the input end of the workshop power supply interface is connected to the third output end of the main circuit breaker. The workshop power supply interface is used to power the auxiliary converter subsystem during inspection and maintenance.

[0011] Furthermore, the high-voltage electrical box also includes a lightning arrester, which is arranged in the box body and is used to prevent atmospheric overvoltage or operational overvoltage from occurring in the high-voltage electrical box.

[0012] Furthermore, the auxiliary converter includes an input filter module, a pulse width modulation inverter module and a main control module. The input filter module and the pulse width modulation inverter module are both connected to the main control module. The main control module is communicatively connected to the driver console. The second output end of the high-voltage electrical box is connected to the input end of the electrical control cabinet through the input filter module and the pulse width modulation inverter module in sequence. The auxiliary converter is used to step down the voltage output by the second output end of the high-voltage electrical box.

[0013] The second technical solution adopted by the present invention is:

[0014] A control method for a high-voltage electrical training system for a rail vehicle, which is used to be executed by the high-voltage electrical training system for a rail vehicle, comprises the following steps:

[0015] Obtaining a first operation instruction from the trainee through the driver console;

[0016] controlling the traction inverter to output a first voltage to the traction motor according to the first operation instruction, thereby controlling the speed and torque of the traction motor;

[0017] The load vehicle is driven to run by the traction motor;

[0018] controlling the auxiliary converter to output a second voltage to the electrical control cabinet according to the first operation instruction, and then controlling the auxiliary electrical equipment through the electrical control cabinet to detect real-time operation data of the load vehicle;

[0019] The real-time operating data is displayed via the driver console.

[0020] Furthermore, the real-time operating data includes vehicle speed, vehicle mileage, air conditioning status data, cabin air pressure data, cabin door status data and lighting system operating data.

[0021] The beneficial effects of the present invention are as follows: the present invention provides a high-voltage electrical training system for urban rail vehicles and a control method thereof. The system comprises a driver console, a high-voltage current collecting subsystem, a traction converter subsystem, an auxiliary converter subsystem and a load vehicle. The high-voltage current collecting subsystem comprises a pantograph and a high-voltage electrical box, the traction converter subsystem comprises a traction inverter and a traction motor, and the auxiliary converter subsystem comprises an auxiliary converter and an electrical control cabinet. By mounting a real load vehicle actuator, the configuration can be increased and adjusted according to the training needs. On the one hand, it can support the principle explanation of the high-voltage electrical system of urban rail vehicles, meet the trainees' system structure cognition, working principle cognition, daily maintenance and fault diagnosis and maintenance training needs, and on the other hand, it can meet the teachers' design, simulation, programming and other course research and design needs, and has strong scalability, can be interconnected with the train control and management system, meet the training needs of joint exercises, realize the visualization and operability of high-voltage electrical training of urban rail vehicles, and improve the training efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a high-voltage electrical training system for urban rail vehicles provided by an embodiment of the present invention;

[0023] Figure 2 A flowchart of the steps of a control method for a high-voltage electrical training system for urban rail vehicles provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The step numbers in the following embodiments are only provided for the convenience of explanation and description, and the order between the steps is not limited in any way. The execution order of each step in the embodiment can be adaptively adjusted according to the understanding of those skilled in the art.

[0025] In the description of the present invention, the meaning of "a plurality" is more than two. If there is a description of "a first" or "a second", it is only used to distinguish the technical features, and it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features. In addition, unless otherwise defined, all technical and scientific terms used in this article have the same meaning as those commonly understood by those skilled in the art. The terms used in this specification are only for describing specific embodiments, not for limiting the present invention.

[0026] Reference Figure 1 The embodiment of the present invention provides a high-voltage electrical training system for urban rail vehicles, including a driver console, a high-voltage current collecting subsystem, a traction converter subsystem, an auxiliary converter subsystem and a load vehicle, the high-voltage current collecting subsystem includes a pantograph and a high-voltage electrical box, the traction converter subsystem includes a traction inverter and a traction motor, the auxiliary converter subsystem includes an auxiliary converter and an electrical control cabinet, the pantograph is used to contact the overhead line to receive electricity, the output end of the pantograph is connected to the input end of the high-voltage electrical box through a power line, the first output end of the high-voltage electrical box is connected to the input end of the traction motor through the traction inverter, the output end of the traction motor is connected to the input end of the load vehicle, the second output end of the high-voltage electrical box is connected to the input end of the electrical control cabinet through the auxiliary converter, the electrical control cabinet is used to provide power for auxiliary electrical equipment on the load vehicle, the pantograph, the high-voltage electrical box, the traction inverter, the traction motor, the auxiliary converter and the electrical control cabinet are all communicatively connected to the driver console.

[0027] The embodiment of the present invention receives electricity through the contact of the pantograph with the overhead line. The power line drawn from the pantograph enters the high-voltage electrical box, and then goes to the traction inverter through the high-voltage electrical box to provide the traction motor with power with adjustable voltage and frequency, and then drives the load vehicle through the traction motor; the auxiliary converter subsystem receives power from the high-voltage electrical box to the auxiliary converter, and outputs low-voltage control power to the extended power supply electrical control cabinet through the auxiliary converter to simulate the extended power supply logic. The embodiment of the present invention can increase and adjust the configuration according to the training needs by mounting a real load vehicle actuator. On the one hand, it can support the principle explanation of the high-voltage electrical system of urban rail vehicles, meet the needs of students' system structure cognition, working principle cognition, daily maintenance and maintenance training, and fault judgment and maintenance training. On the other hand, it can meet the needs of teachers for course research and design such as design, simulation, and programming, and has strong scalability. It can be interconnected with the train control and management system to meet the training needs of joint exercises, realize the visualization and operability of high-voltage electrical training of urban rail vehicles, and improve the training efficiency.

[0028] Reference Figure 1As an optional implementation, the driver console includes a controller, a key module and a display module. The output end of the key module is connected to the input end of the controller. The controller is used to control and collect working status of the pantograph, the high-voltage electrical box, the traction inverter, the traction motor, the auxiliary converter and the electrical control cabinet. The output end of the controller is connected to the input end of the display module.

[0029] Specifically, the driver console of the embodiment of the present invention has train control input function and train status feedback function, realizes control input through a key module, and realizes status feedback display through indicator lights, sounds and display modules to assist in teaching the traction system of urban rail vehicles.

[0030] The display module can adopt a liquid crystal display screen, which is installed at the front end of the driver's console and can be linked with the driver's console to display the working status of the main circuit of the traction system and the real-time operation data of the load vehicle.

[0031] The driver's console uses a 1:1 simulation device of the real urban rail driver's console, and is equipped with a 55-inch display screen to display the control logic and working status of the traction system. The urban rail vehicle model can be configured according to practical training needs.

[0032] Reference Figure 1 As an optional implementation, the traction converter subsystem further includes a traction control unit, and the controller is connected to the traction inverter through the traction control unit. The controller is used to output a control signal so that the traction inverter outputs a preset voltage to drive the traction motor.

[0033] Specifically, the traction control unit (TCU) is the control core of the train traction system. Mastering the working mechanism of the controller can help drivers, passengers and maintenance personnel to deeply understand the job process, change from passive acceptance to active exploration, improve the quality of drivers, passengers and maintenance personnel, and at the same time lay a solid theoretical and practical foundation for the training of high-level professional and technical personnel.

[0034] The traction inverter is installed in the traction equipment box at the bottom of the load vehicle. The traction inverter is the driving device of the traction motor of the urban rail vehicle. Under the control of the traction control unit, it outputs a specific voltage to drive the traction motor to achieve the purpose of controlling the speed and torque of the traction motor.

[0035] The traction motor is installed on the power bogie of the load vehicle. Each wheel pair of the power bogie is equipped with a traction motor, and the motor is installed horizontally relative to the direction of train operation. Taking the B-type urban rail vehicle as an example, the traction motor adopts a 1TB2019 model 4-pole 3-phase asynchronous motor, and the cooling method is forced air cooling. Each traction motor cooling fan simultaneously provides a specified amount of cooling air to the two traction motors of the same bogie. The traction motor cooling fan is installed under the urban rail vehicle near the bogie.

[0036] The embodiments of the present invention can truly restore the traction system of a high-speed urban rail train in a laboratory environment, and is used to solve the problems of principle teaching, practical operation, and training and assessment of the core control technology of train traction, thus providing convenience for the specialization and in-depth skill training of railway vocational and technical colleges and related operating units.

[0037] Reference Figure 1 , further as an optional embodiment, the high-voltage electrical box includes a box body and a main circuit breaker, a voltage transformer, a first current transformer and a second current transformer arranged in the box body, the output end of the pantograph is connected to the input end of the main circuit breaker through the voltage transformer, the first output end of the main circuit breaker is connected to the input end of the traction motor through the first current transformer and the traction inverter, and the second output end of the main circuit breaker is connected to the input end of the electrical control cabinet through the second current transformer and the auxiliary converter.

[0038] Specifically, the pantograph is a component that obtains electrical energy from the contact network. It consists of a carbon slide plate, an upper frame, a lower arm, a bottom frame, a pantograph raising spring, a transmission cylinder, a supporting insulator, etc. When the train is running, compressed air enters the pantograph raising device airbag through the various valves of the train, raising the pantograph so that the pantograph slide plate contacts the contact network; when lowering the pantograph, the compressed air in the pantograph raising device airbag is discharged to drop the pantograph.

[0039] The high-speed circuit breaker is installed in the high-voltage electrical box. It uses a vacuum circuit breaker to disconnect and connect the DC110V circuit and serves as a protection device for fault conditions. It has both the functions of a circuit breaker and a switch. It can safely disconnect the high voltage in the event of a serious fault (overcurrent, transformer failure or line short circuit). The high-speed circuit breaker is designed as a single-pole vacuum main circuit breaker with a built-in spring-loaded compressed air actuator and a vacuum arc discharge chamber.

[0040] The voltage transformer is located between the pantograph and the high-speed circuit breaker. Its main function is to detect the contact network voltage and provide the detected voltage signal to the train control system and the corresponding traction converter; the current transformer is used to detect various current signals.

[0041] Reference Figure 1 As an optional implementation, the high-voltage electrical box also includes a grounding isolating switch, which is arranged in the box and next to the main circuit breaker. The grounding isolating switch is used to ground the main circuit breaker during inspection and maintenance.

[0042] Specifically, the grounding disconnector is installed on a separate base next to the main circuit breaker. Its main function is to ensure the safe grounding of the vehicle during maintenance. In the non-working state, the switch handle is in a horizontal position. When it is turned to the grounding contacts at both ends of the main circuit breaker, the handle is in the grounding position. The grounding disconnector can be manually operated in the car, and the interlocking device ensures that it can only work when the high-voltage system of the train is disconnected from the contact network. The grounding switch has the function of preventing short circuits.

[0043] Reference Figure 1 As an optional implementation, the high-voltage electrical box also includes a workshop power interface, which is arranged in the box, and the input end of the workshop power interface is connected to the third output end of the main circuit breaker. The workshop power interface is used to power the auxiliary converter subsystem during inspection and maintenance.

[0044] Specifically, the workshop power interface is installed in the high-voltage electrical box. When the vehicle adopts the workshop power supply mode, only the auxiliary system of the vehicle is powered, and the traction system is isolated. At this time, the main circuit breaker cannot be closed, and the pantograph cannot be raised. In this mode, the train is stationary in the workshop or depot and cannot run. Only testing and maintenance work can be carried out.

[0045] As a further optional implementation, the high-voltage electrical box also includes a lightning arrester, which is arranged in the box body and is used to prevent the high-voltage electrical box from atmospheric overvoltage or operational overvoltage.

[0046] Specifically, lightning arresters are used to limit atmospheric overvoltage and operating overvoltage that occur during the operation of electrical equipment, protecting the electrical equipment from overvoltage damage.

[0047] Reference Figure 1 As an optional implementation, the auxiliary converter includes an input filter module, a pulse width modulation inverter module and a main control module. The input filter module and the pulse width modulation inverter module are both connected to the main control module. The main control module is communicatively connected to the driver console. The second output end of the high-voltage electrical box is connected to the input end of the electrical control cabinet through the input filter module and the pulse width modulation inverter module in sequence. The auxiliary converter is used to step down the voltage output by the second output end of the high-voltage electrical box.

[0048] Specifically, the auxiliary converter (ACU) is installed under the floor of the load vehicle and connected to the vehicle body through the support ear. The auxiliary converter input comes from the pantograph with a voltage of DC110V, and the output is a DC bus voltage DC24V, which provides power for the auxiliary electrical equipment of the load vehicle. The auxiliary converter box and components adopt a modular design, mainly consisting of an input filter module (including filter capacitors, main contactors, pre-charging devices, filter inductors, input voltage and current sensors), a pulse width modulation inverter module, a main control module and a cooling system.

[0049] In the embodiment of the present invention, an auxiliary inverter is set in each half train, and each auxiliary inverter provides AC power for the adjacent half train. Once an auxiliary inverter fails, the other auxiliary inverter will provide AC power for the entire train and reduce the load at the same time. The system integrates the extended power supply electrical control logic into the electrical control cabinet, and fully simulates the extended power supply mode of the urban rail train, which can meet the trainees' cognition of control circuits and training and learning of control principles.

[0050] Optionally, to facilitate teaching demonstration, an actuator display device of a load vehicle is provided in the system, so that trainees can intuitively understand the control effect and system status of the vehicle electrical control system through the actions of these actuators.

[0051] The above is a description of the system structure of the embodiment of the present invention. The following is a description of the control method of the embodiment of the present invention.

[0052] Reference Figure 2 The embodiment of the present invention provides a control method for a high-voltage electrical training system for a rail vehicle, which is used to be executed by the above-mentioned high-voltage electrical training system for a rail vehicle, and includes the following steps:

[0053] S101, obtaining a first operation instruction from a trainee through a driver console;

[0054] S102, controlling the traction inverter to output a first voltage to the traction motor according to the first operation instruction, thereby controlling the speed and torque of the traction motor;

[0055] S103, driving the load vehicle to run by means of a traction motor;

[0056] S104, controlling the auxiliary converter to output a second voltage to the electrical control cabinet according to the first operation instruction, and then controlling the auxiliary electrical equipment through the electrical control cabinet to detect real-time operation data of the load vehicle;

[0057] S105. Displaying real-time operating data via a driver console.

[0058] Specifically, the operation of the load vehicle can be controlled by sending operating instructions through the driver console, and the real-time operation data of the load vehicle can be collected and displayed and fed back through the driver console, so that the trainees can perform practical operations according to the real-time operation data of the load vehicle. The embodiment of the present invention can increase and adjust the configuration according to the training needs by mounting a real load vehicle actuator. On the one hand, it can support the principle explanation of the high-voltage electrical system of urban rail vehicles, meet the trainees' system structure cognition, working principle cognition, daily maintenance and maintenance training, and fault diagnosis and maintenance training needs. On the other hand, it can meet the needs of teachers for course research and design such as design, simulation, and programming, and has strong scalability. It can be interconnected with the train control and management system to meet the training needs of joint exercises, realize the visualization and operability of urban rail vehicle high-voltage electrical training, and improve the training efficiency.

[0059] As a further optional implementation, the real-time operating data includes vehicle speed, vehicle mileage, air conditioning status data, cabin air pressure data, cabin door status data and lighting system operating data.

[0060] It can be understood that, compared with the prior art, the embodiments of the present invention also have the following advantages:

[0061] 1) Rich training functions: pantograph, high-voltage current collecting subsystem, traction converter subsystem all support equipment stand-alone training mode, online training mode and instructor mode, which can not only support the explanation of system principles, but also meet the students' practical needs such as design, simulation and programming.

[0062] 2) Logical interlocking: The system adopts a logical interlocking design, which can realize the interlocking function of each system operation and action state, effectively ensuring the safety of system operation.

[0063] 3) High-precision real-time simulation main circuit: A real-time simulator is used to provide a high-precision model that fully covers the train operating conditions.

[0064] 4) Strong scalability: The train traction control unit is equipped with MVB, real-time Ethernet, and CAN communication interfaces, and can be jointly trained with the TCMS system.

[0065] 5) Complete training management system: It has functions such as model management, parameter debugging, and online monitoring, and supports auxiliary analysis functions such as all internal and external data chart display, data recording, data storage, and data playback.

[0066] 6) Multiple usage modes: Support students to conduct single-part theoretical and practical learning, support students to conduct joint drills on physical circuits, support instructors to set examination subjects, and students to conduct troubleshooting assessments and output scores.

[0067] It should be appreciated that embodiments of the present invention may be implemented or enforced by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer-readable memory. The above methods may be implemented in a computer program using standard programming techniques, including a non-transitory computer-readable storage medium configured with a computer program, wherein the storage medium so configured causes the computer to operate in a specific and predefined manner, according to the methods and drawings described in the specific embodiments. Each program may be implemented in a high-level procedural or object-oriented programming language to communicate with a computer system. However, if desired, the program may be implemented in an assembly or machine language. In any case, the language may be a compiled or interpreted language. In addition, the program may be run on a programmed dedicated integrated circuit for this purpose.

[0068] Furthermore, the operations of the processes described herein may be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes described herein (or variations and / or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications) that is executed collectively on one or more processors, by hardware, or a combination thereof. The computer programs described above include a plurality of instructions that may be executed by one or more processors.

[0069] Further, the above method can be implemented in any type of computing platform that is operably connected to a suitable computer, including but not limited to a personal computer, a minicomputer, a mainframe, a workstation, a network or distributed computing environment, a separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, etc. Various aspects of the present invention can be implemented in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, an optical read and / or write storage medium, a RAM, a ROM, etc., so that it can be read by a programmable computer, and when the storage medium or device is read by the computer, it can be used to configure and operate the computer to perform the process described herein. In addition, the machine-readable code, or a portion thereof, can be transmitted via a wired or wireless network. When such media includes instructions or programs that implement the steps described above in conjunction with a microprocessor or other data processor, the invention described herein includes these and other different types of non-transitory computer-readable storage media. When programmed according to the methods and techniques described in the present invention, the present invention also includes the computer itself.

[0070] The computer program can be applied to input data to perform the functions described herein, thereby converting the input data to generate output data stored in a non-volatile memory. The output information can also be applied to one or more output devices such as a display. In a preferred embodiment of the present invention, the converted data represents physical and tangible objects, including specific visual depictions of physical and tangible objects produced on the display.

[0071] The above is only a preferred embodiment of the present invention. The present invention is not limited to the above implementation. As long as the technical effect of the present invention is achieved by the same means, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of protection of the present invention. Within the scope of protection of the present invention, its technical scheme and / or implementation method may have various modifications and changes.

Claims

1. A high voltage electrical training system for urban rail vehicles, characterized in that: It includes a driver console, a high-voltage current collecting subsystem, a traction current conversion subsystem, an auxiliary current conversion subsystem and a load vehicle, wherein the high-voltage current collecting subsystem includes a pantograph and a high-voltage electrical box, the traction current conversion subsystem includes a traction inverter and a traction motor, the auxiliary current conversion subsystem includes an auxiliary current converter and an electrical control cabinet, the pantograph is used to contact the overhead line to receive electricity, the output end of the pantograph is connected to the input end of the high-voltage electrical box through a power line, the first output end of the high-voltage electrical box is connected to the input end of the traction motor through the traction inverter, the output end of the traction motor is connected to the input end of the load vehicle, the second output end of the high-voltage electrical box is connected to the input end of the electrical control cabinet through the auxiliary current converter, the electrical control cabinet is used to provide power for auxiliary electrical equipment on the load vehicle, and the pantograph, the high-voltage electrical box, the traction inverter, the traction motor, the auxiliary current converter and the electrical control cabinet are all connected to the driver console in communication; The driver console includes a controller, a key module and a display module, the output end of the key module is connected to the input end of the controller, the controller is used to control and collect working status of the pantograph, the high-voltage electrical box, the traction inverter, the traction motor, the auxiliary converter and the electrical control cabinet, and the output end of the controller is connected to the input end of the display module; The high-voltage electrical box includes a box body and a main circuit breaker, a voltage transformer, a first current transformer and a second current transformer arranged in the box body, the output end of the pantograph is connected to the input end of the main circuit breaker through the voltage transformer, the first output end of the main circuit breaker is connected to the input end of the traction motor through the first current transformer and the traction inverter, and the second output end of the main circuit breaker is connected to the input end of the electrical control cabinet through the second current transformer and the auxiliary converter; The auxiliary converter includes an input filter module, a pulse width modulation inverter module and a main control module. The input filter module and the pulse width modulation inverter module are both connected to the main control module. The main control module is communicatively connected to the driver console. The second output end of the high-voltage electrical box is connected to the input end of the electrical control cabinet through the input filter module and the pulse width modulation inverter module in sequence. The auxiliary converter is used to step down the voltage output by the second output end of the high-voltage electrical box.

2. A high voltage electrical training system for urban rail vehicles according to claim 1, characterized in that: The traction converter subsystem further includes a traction control unit, and the controller is connected to the traction inverter via the traction control unit. The controller is used to output a control signal so that the traction inverter outputs a preset voltage to drive the traction motor.

3. The high voltage electrical training system for urban rail vehicles according to claim 1 is characterized in that: The high-voltage electrical box also includes a grounding isolating switch, which is arranged in the box body and located next to the main circuit breaker. The grounding isolating switch is used to ground the main circuit breaker during inspection and maintenance.

4. The high voltage electrical training system for urban rail vehicles according to claim 1 is characterized in that: The high-voltage electrical box also includes a workshop power supply interface, which is arranged in the box body. The input end of the workshop power supply interface is connected to the third output end of the main circuit breaker. The workshop power supply interface is used to power the auxiliary converter subsystem during inspection and maintenance.

5. The high voltage electrical training system for urban rail vehicles according to claim 1 is characterized in that: The high-voltage electrical box further comprises a lightning arrester, which is arranged in the box body and is used to prevent atmospheric overvoltage or operational overvoltage from occurring in the high-voltage electrical box.

6. A control method for a high-voltage electrical training system for a city rail vehicle, which is implemented by the high-voltage electrical training system for a city rail vehicle according to any one of claims 1 to 5, characterized in that: The following steps are involved: Obtaining a first operation instruction from the trainee through the driver console; controlling the traction inverter to output a first voltage to the traction motor according to the first operation instruction, thereby controlling the speed and torque of the traction motor; The load vehicle is driven to run by the traction motor; controlling the auxiliary converter to output a second voltage to the electrical control cabinet according to the first operation instruction, and then controlling the auxiliary electrical equipment through the electrical control cabinet to detect real-time operation data of the load vehicle; The real-time operating data is displayed via the driver console.

7. The control method according to claim 6, characterized in that: The real-time operation data includes vehicle speed, vehicle mileage, air conditioning status data, cabin air pressure data, cabin door status data and lighting system operation data.

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