阅读说明：本技术 一种准轨工矿电机车电气控制系统 (Electric control system of standard rail industrial and mining electric locomotive ) 是由 李许金 张鹏 周革 郭三军 安文举 于 2019-10-10 设计创作，主要内容包括：一种准轨工矿电机车电气控制系统,包括架线电网电源、压缩机通风机辅助系统、直流综保系统和辅助电源系统,直流综保系统通过斩波器连接有牵引电机,辅助电源系统分别连接有车辆照明系统、视频监控系统和车辆信息处理系统；车辆信息处理系统与斩波器进行双向连接,车辆信息处理系统将控制指令发送给斩波器,并接受来自斩波器的反馈信号,车辆信息处理系统通过工业以太网连接有工业控制计算机。本发明实现了操作简单,性能稳定,数据检测保存,车辆安全性能得到质的飞跃,极大的提高工矿企业的运输效率,且适应极限环境条件、维护周期短成本低、性能稳定且操作简单。(An electric control system of a standard rail industrial and mining electric locomotive comprises an overhead line power grid power supply, a compressor ventilator auxiliary system, a direct current comprehensive protection system and an auxiliary power supply system, wherein the direct current comprehensive protection system is connected with a traction motor through a chopper; the vehicle information processing system is connected with the chopper in a bidirectional mode, sends a control command to the chopper and receives a feedback signal from the chopper, and is connected with an industrial control computer through an industrial Ethernet. The invention realizes the qualitative leap of the safety performance of the vehicle, greatly improves the transportation efficiency of industrial and mining enterprises, adapts to the limit environmental condition, has short maintenance period, low cost, stable performance and simple operation.)

1. The electric control system of the standard rail industrial and mining electric locomotive is characterized by comprising an overhead line power grid power supply, a compressor ventilator auxiliary system, a direct current comprehensive protection system and an auxiliary power supply system, wherein the direct current comprehensive protection system is connected with a traction motor through a chopper; the vehicle information processing system is connected with the chopper in a bidirectional mode, sends a control instruction to the chopper and receives a feedback signal from the chopper, and is connected with an industrial control computer through an industrial Ethernet.

2. The electrical control system of an on-rail industrial and mining electric locomotive according to claim 1, wherein said vehicle information processing system is comprised of an industrial computer and a PLC connected to an axle speed sensor mounted on an axle connected to a traction motor, a driver operated instrument disposed in a cab, and an axle temperature sensor mounted on the traction motor.

3. The electrical control system of the standard rail industrial and mining electric locomotive according to claim 1 or 2, wherein each chopper is connected with two traction motors, and the traction motors are dual-output-shaft three-phase asynchronous motors.

4. The electric control system of the standard rail industrial and mining electric locomotive according to claim 1 or 2, wherein the direct current comprehensive protection system is composed of a relay control box, a direct current fast breaker and a direct current protection device.

5. The electrical control system of the standard rail industrial and mining electric locomotive according to claim 1 or 2, wherein the vehicle lighting system comprises a lamp lighting system, and comprises a cab top lamp, a train lighting lamp, an under-train lighting lamp, a high-pressure chamber and an auxiliary chamber maintenance lamp, and a marker lamp, wherein the cab top lamp, the train lighting lamp, the under-train lighting lamp, the high-pressure chamber and the auxiliary chamber maintenance lamp are connected with the auxiliary power supply system through corresponding control switches.

6. The electrical control system of the standard rail industrial and mining electric locomotive according to claim 1 or 2, wherein the video monitoring system is composed of a camera and a display screen, the camera is installed around the locomotive body and in the cab, and the display screen is arranged on a driver operation instrument.

7. The electrical control system of the standard rail industrial and mining electric locomotive according to claim 4, wherein the vehicle information processing system is further connected with a motor fault removal switch, a master controller and a reverse traction control handle respectively.

8. The electrical control system of the standard rail industrial and mining electric locomotive according to claim 7, wherein an air brake solenoid valve, a compressor and a ventilator are respectively connected to the auxiliary control system.

Technical Field

The invention relates to the technical field of electrical control of standard rail industrial and mining locomotives, in particular to an electrical control system of a standard rail industrial and mining locomotive.

Background

The large-tonnage standard rail industrial and mining heavy-duty vehicle is required to assist in transporting production raw materials according to production on a large-scale strip mine or a large-scale industrial enterprise, the large-tonnage standard rail industrial and mining heavy-duty train on the market is simple in electrical control and control, complex to operate, low in stability, high in failure rate and high in energy consumption resistance variable speed control, production and transportation of the large-scale industrial and mining enterprise are seriously affected, meanwhile, high energy consumption causes high cost enterprises of the enterprise, the market urgently needs a novel electrical control system of the standard rail industrial and mining vehicle to meet the control requirements of the vehicle, and the production and transportation requirements of the enterprise are met.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects in the prior art and providing the electric control system of the standard rail industrial and mining electric locomotive, which is adaptive to extreme environmental conditions, short in maintenance period, low in cost, stable in performance and simple in operation.

The technical scheme adopted by the invention for solving the technical problems is as follows:

an electric control system of a standard rail industrial and mining electric locomotive comprises an overhead line power grid power supply, a compressor ventilator auxiliary system, a direct current comprehensive protection system and an auxiliary power supply system, wherein the direct current comprehensive protection system is connected with a traction motor through a chopper; the vehicle information processing system is connected with the chopper in a bidirectional mode, sends a control instruction to the chopper and receives a feedback signal from the chopper, and is connected with an industrial control computer through an industrial Ethernet.

Further, the vehicle information processing system is composed of an industrial computer and a PLC, the PLC is connected with an axle speed sensor, a driver operation instrument and an axle temperature sensor, the axle speed sensor is installed on an axle connected with the traction motor, the driver operation instrument is arranged in the cab, and the axle temperature sensor is installed on the traction motor; the PLC monitors the speed of a vehicle and the temperature of a motor and an axle in real time, a control command of a chopping system is sent to each chopper by the master controller through the PLC, so that the operation of a locomotive is controlled, meanwhile, feedback signals of the chopping system such as motor current, motor voltage and chopper temperature signal lamps are fed back to the PLC in real time through RS485, and the PLC transmits the feedback signals to an industrial computer through an industrial Ethernet, so that the locomotive can monitor the operation state of the vehicle in real time, fault display and fault warning are provided, a driver can timely remove faults, the operation of the vehicle is guaranteed, and meanwhile, the operation state of the locomotive can be recorded and stored, so that the vehicle can be maintained and maintained more perfectly in the future.

Furthermore, each chopper is connected with two traction motors, and the traction motors are dual-output-shaft three-phase asynchronous motors; the chopper changes the running speed and the traction weight of the locomotive by changing the voltage loaded on the motor.

Furthermore, the direct current comprehensive protection system consists of a relay control box, a direct current fast breaker and a direct current protection device; the voltage of the power grid is connected with the direct current fast breaker through the pantograph, the relay control box controls the closing and breaking of the direct current fast breaker so as to control the connection and disconnection of the power supply of the vehicle, the on-off state of the power supply is sent to the vehicle signal processing system, a driver can monitor the working state of the power supply in real time, and meanwhile, the relay control box controls the closing and breaking of the direct current fast breaker to realize the functions of over-current protection and alarm, over-current delay protection and alarm, near-end short-circuit current rise rate protection, far-end short-circuit current rise rate protection and the like of the locomotive.

Further, the vehicle lighting system comprises a vehicle lamp lighting system, and comprises a cab top lamp, a train lighting lamp, an under-vehicle lighting lamp, a high-voltage chamber and an auxiliary machine room maintenance lamp, and a marker lamp, wherein the cab top lamp, the train lighting lamp, the under-vehicle lighting lamp, the high-voltage chamber and the auxiliary machine room maintenance lamp are connected in parallel, and the marker lamp is respectively connected with the auxiliary power supply system through a corresponding control switch.

Furthermore, the video monitoring system consists of a camera and a display screen, wherein the camera is arranged around the vehicle body and in the cab, and the display screen is arranged on a driver operation instrument; when the locomotive runs and is parked, the environment and the road condition around the locomotive are monitored in real time, signals are displayed on a display screen in real time, and meanwhile, the locomotive has a video recording function and a GPS (global positioning system) positioning function, and the real-time signals can be transmitted to a train command center through a 4G mobile phone card according to enterprise requirements, so that remote monitoring is realized.

Further, the vehicle information processing system is also respectively connected with a motor fault removal switch, a master controller and a reverse traction control handle; after the locomotive finishes self-checking, a driver selects the running direction of the vehicle with the motor to be forward or backward through the direction traction control handle, after setting, the vehicle information processing system sends a speed instruction to the main motor variable-chopper, at the moment, the operation handle is positioned in a neutral position, at the moment, if the PLC detects faults (namely the neutral position abnormal fault, the chopper ready abnormal fault, the air pressure abnormal fault, the overvoltage fault or the undervoltage fault, the overcurrent fault, the motor variable-frequency driver overheat fault, the brake resistor fault, the speed abnormal fault, the IGBT driving abnormal fault and the communication abnormal fault), the traveling fault lamp is lightened to remind the driver of traveling faults, the chopper stops working, meanwhile, the driver is required to continuously select the chopper which is closed or the chopper connected with a fault component by clicking the motor fault removal switch, and if the chopper is normal, and then, according to the gear given by a driver, the chopper outputs corresponding voltage and current, the locomotive runs according to the given gear, and at the moment, if the PLC detects a fault, the driving fault lamp is turned on to remind the driver of driving fault, and the chopper stops working.

Further, the auxiliary control system is respectively connected with an air brake electromagnetic valve, a compressor and a ventilator; the pneumatic brake solenoid valve is responsible for applying and releasing a pneumatic brake command.

The operation principle is as follows:

the power supply of the overhead line power grid is used for providing power supply for the chopper and is also used for providing power supply for the auxiliary power supply system, the PLC of the vehicle information processing system starts to perform self-detection on each part of the vehicle, the PLC sends a safety confirmation signal to the chopper when the detection is passed, a driver sends an instruction to the chopper through the PLC by operating a master controller, the chopper outputs current and voltage to the traction motor, the chopper carries out data transmission on the traction motor according to the instruction of the driver and the load state, and the vehicle enters the running state; when the vehicle enters a deceleration or braking state, the PLC firstly consumes the kinetic energy and potential energy generated by the vehicle in a motor cross excitation mode, and releases more kinetic energy and potential energy in a heat mode through the braking electric group, so that the safety of an electric system is ensured;

when the train needs to run, a master control console sends a vehicle running instruction to the chopper through a PLC, and the chopper controls the electric running by adopting a current-voltage double closed loop control mode for a master traction motor according to the vehicle running instruction;

before a train is started, the train self-inspection is realized through a vehicle information processing system, after a direct current quick breaker of a direct current comprehensive protection system is switched on, the vehicle information processing system detects whether an operating handle is in a neutral position, when the operating handle is in the neutral position, a microswitch on the neutral position transmits a potential signal to the vehicle information processing system, otherwise, the vehicle information processing system detects an abnormal neutral position fault; the vehicle information processing system checks whether the chopper frequency driver is in a ready state, otherwise, the vehicle information processing system detects a chopper ready abnormal fault; the vehicle information processing system monitors whether the air pressure of the vehicle is normal or not through the pressure sensor, and when the air pressure is abnormal, the vehicle information processing system detects an air pressure abnormal fault; when the vehicle information processing system detects that the operating handle is in a neutral position, the chopper is in a frequency conversion ready state, and the vehicle air pressure is normal, the locomotive completes self-checking. After the locomotive finishes self-checking, the locomotive starts a subsequent procedure;

in the running process of the locomotive, the chopper can monitor whether the locomotive has an overvoltage fault or an undervoltage fault through a self-contained voltage sensor, and when the locomotive has the overvoltage fault or the undervoltage fault, the vehicle information processing system detects the overvoltage fault or the undervoltage fault; the chopper can visually monitor whether the locomotive has an overcurrent fault through a self-contained current sensor, and when the locomotive has the overcurrent fault, the vehicle information processing system detects the overcurrent fault; the chopper can monitor whether the chopper is overheated or not through a self-contained temperature sensor, and when the chopper is monitored to be overheated, the vehicle information processing system detects the overheating fault of the chopper driver; the vehicle information processing system can monitor whether the speed of the vehicle is abnormal or not through a speed sensor arranged on an axle, and when the pulse of a speed encoder is abnormal, the vehicle information processing system detects a speed abnormal fault; the chopper can monitor whether the IGBT drive of the chopper is normal or not, and when the IGBT drive is abnormal, the vehicle information processing system detects the abnormal fault of the IGBT drive; the vehicle information processing system monitors whether the air pressure of the vehicle is normal or not through the air pressure sensor, and when the air pressure is abnormal, the vehicle information processing system detects the air pressure abnormal fault. Meanwhile, the vehicle information processing system also monitors whether the communication between the vehicle information processing system and the chopping wave is normal or not, and when the communication is abnormal, the vehicle information processing system detects the abnormal communication fault; the vehicle information processing system can monitor the state of the automatic lubrication device through communication with the automatic lubrication system, and when the state of the automatic lubrication device is abnormal, the vehicle information processing system detects various faults discovered by the vehicle information processing system through monitoring, can send the faults to the touch screen for display, and simultaneously sends the faults to the industrial computer for storage for later inspection.

The invention has the beneficial effects that:

1. the auxiliary control loop realizes the functions of controlling the vehicle operation condition, managing the vehicle operation parameters, displaying faults, warning faults, eliminating faults and the like through the vehicle information processing system, and the system for logically controlling the vehicle illumination and the compressor can monitor the surrounding environment in real time when the locomotive runs, monitor the working condition of the running road in real time and ensure the safety of the locomotive.

2. The electric control system integrates a direct current comprehensive protection system, a video monitoring system, a vehicle information processing system and an auxiliary control system, the four systems complete the transportation process of industrial and mining enterprise production raw materials such as transportation, loading and unloading of the locomotive, the operation is simple, the performance is stable, data detection and storage are realized, the safety performance of the vehicle is greatly improved, and the transportation efficiency of the industrial and mining enterprise is greatly improved.

Drawings

FIG. l is a schematic of the present invention.

Detailed Description

The following examples are given to further illustrate the embodiments of the present invention:

as shown in fig. 1, an embodiment of an electrical control system of a standard rail industrial and mining electric locomotive comprises an overhead power grid power supply, a compressor ventilator auxiliary system, a direct current comprehensive protection system and an auxiliary power supply system, wherein the direct current comprehensive protection system is connected with two traction motors through a chopper, the traction motors are dual-output-shaft three-phase asynchronous motors, and the direct current comprehensive protection system consists of a relay control box, a direct current fast breaker and a direct current protection device; the auxiliary control system is respectively connected with an air brake electromagnetic valve, a compressor and a ventilator.

The auxiliary power supply system is respectively connected with a vehicle lighting system, a video monitoring system and a vehicle information processing system; the vehicle information processing system is connected with the chopper in a bidirectional mode, sends a control instruction to the chopper and receives a feedback signal from the chopper, and is connected with an industrial control computer through an industrial Ethernet; the vehicle information processing system consists of an industrial computer and a PLC (programmable logic controller), wherein the PLC is connected with an axle speed sensor, a driver operation instrument and an axle temperature sensor, the axle speed sensor is arranged on an axle connected with a traction motor, the driver operation instrument is arranged in a cab, and the axle temperature sensor is arranged on the traction motor; the vehicle information processing system is also respectively connected with the motor fault removal switch, the master controller and the reverse traction control handle; the vehicle lighting system comprises a vehicle lamp lighting system, a signal lamp, a driving cab top lamp, a train lighting lamp, an under-vehicle lighting lamp, a high-pressure chamber, an auxiliary machine chamber maintenance lamp and a marker lamp, wherein the driving cab top lamp, the train lighting lamp, the under-vehicle lighting lamp, the high-pressure chamber, the auxiliary machine chamber maintenance lamp and the marker lamp are connected with the auxiliary power supply system through corresponding control switches respectively; the video monitoring system consists of a camera and a display screen, wherein the camera is arranged around the vehicle body and in the cab, and the display screen is arranged on a driver operation instrument.

Those not described in detail in the specification are well within the skill of the art.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as being within the protection scope of the present invention.