CN110909444B - High-speed rail traction power supply scheduling simulation training system - Google Patents

High-speed rail traction power supply scheduling simulation training system Download PDF

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CN110909444B
CN110909444B CN201910977471.0A CN201910977471A CN110909444B CN 110909444 B CN110909444 B CN 110909444B CN 201910977471 A CN201910977471 A CN 201910977471A CN 110909444 B CN110909444 B CN 110909444B
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power supply
simulation
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traction power
dispatching
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CN110909444A (en
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郎兵
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Beijing Jiaotong University
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    • G09B9/00—Simulators for teaching or training purposes

Abstract

The invention relates to a high-speed rail traction power supply dispatching simulation training system, which comprises a hardware environment, a software environment and a software system structure, wherein the hardware environment comprises a monitoring computer for operating high-speed rail traction power supply dispatching simulation training system software; the monitoring computer comprises 4 display screens and 1 workstation, the 4 display screens form a simulation mode of '3 + 1', the 3 display screens are called SCADA (supervisory control and data acquisition) screens, the 1 display screen is called a public service screen, the software environment is high-speed rail traction power supply dispatching simulation training system software, a win10, a win7 and a windows xp system are adopted, and a development platform of the high-speed rail traction power supply dispatching simulation training system software adopts Visual C + + 6.0; the software architecture includes the following subsystems: the system comprises a monitoring simulation subsystem, a communication simulation subsystem, a power supply management subsystem, a traction power supply system normal operation state simulation subsystem, a traction power supply system fault operation state simulation subsystem and a traction power supply secondary equipment system simulation subsystem.

Description

High-speed rail traction power supply scheduling simulation training system
Technical Field
The invention belongs to the technical field of traction power supply of electrified railways, and particularly relates to a high-speed rail traction power supply dispatching simulation training system, which is particularly applied to technical training and technical drilling of high-speed rail traction power supply dispatching technicians in the aspects of conventional operation and fault emergency treatment.
Background
Due to the operation requirements of high reliability and high safety, the high-speed railway has great difference with the ordinary-speed railway in many aspects, particularly in the aspects of operation, control and management of a traction power supply system. The conventional switching operation of the high-speed railway traction power supply system and the emergency treatment adopted after the fault occur are all carried out by power supply scheduling personnel through the remote control of the scheduling system in a scheduling center, so the professional skill level of the power supply scheduling personnel is very important for ensuring the safety of high-speed rail transportation. At present, a four-in-one high-speed rail centralized dispatching operation mode is widely adopted in the field of high-speed rails in China, a high-speed rail dispatching system based on an automation technology, a computer control technology and a computer network communication technology plays an important role in guaranteeing transportation safety, particularly, a plurality of programmed automatic operations in a traction power supply dispatching subsystem bring great convenience and reliable guarantee for power supply dispatching personnel to control field equipment. However, the traction power supply dispatching system is a production device which runs on line in real time, and a dispatcher cannot operate the system at will and can only perform corresponding operation when the production is needed. When a power supply system has a fault, particularly a rare complex fault, a large amount of fault information is presented to a dispatcher through a dispatching system, the dispatcher can correctly understand the information, correctly judge the fault condition and quickly and correctly take corresponding treatment measures, so that the influence of the fault on transportation production is reduced to the minimum, and the service skill level of the dispatcher is reflected. In order to improve the service skill level of the dispatching personnel, except for training to enable the dispatching personnel to memorize and master service knowledge, the most effective method is to provide a set of simulation dispatching system consistent with the power supply dispatching system, the power supply dispatching personnel can carry out various operation drills through the simulation dispatching system, imagine some possible faults, simulate the fault occurrence and design correct fault response measures, and the method has important significance for avoiding misoperation when the actual fault occurs and ensuring transportation safety.
Therefore, it is very necessary to develop a set of simulation scheduling system which is specific to a high-speed rail power supply scheduler, is consistent with the working environment of an actual high-speed rail traction power supply scheduling system, is independent of the actual scheduling system, and can repeatedly reproduce various operations performed by the scheduler during working and emergency treatment processes during fault occurrence, and is used as a platform for the scheduler to perform professional technical training when the scheduler leaves the post or is on the post.
A high-speed rail traction power supply dispatching simulation training system aims at a traction power supply dispatching system of a high-speed rail which is currently opened and operated in China, a high-speed rail traction power supply dispatching simulation training system platform is researched and developed based on a traction power supply system mathematical modeling technology and a computer simulation technology, a simulation dispatching system which is consistent with the operation of the traction power supply dispatching system of any one high-speed rail which is currently operated in China can be manufactured through the platform, an experiment platform is provided for power supply dispatching operation personnel to test operation steps or simulate assumed faults and research how to deal with the faults through the simulation dispatching system, and a practical training platform is provided for the power supply dispatching operation personnel to train various operations and train various fault emergency handling processes.
At present, a pure modeling, digital and visual high-speed rail traction power supply scheduling simulation training system which has the functions of driving simulation, fault simulation, operation simulation and fault emergency handling simulation and integrates experiments and practical training is still blank in China.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a high-speed rail traction power supply dispatching simulation training system, which provides an experimental platform for power supply dispatching operators to test operation steps or simulate assumed faults and research how to deal with the assumed faults, and provides a practical training platform for the power supply dispatching operators to train various operations and train various fault emergency handling processes.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a high-speed rail traction power supply dispatching simulation training system comprises: the system comprises a hardware environment, a software environment and a software architecture, wherein the hardware environment comprises a monitoring computer for operating high-speed rail traction power supply dispatching simulation training system software;
the monitoring computer for operating the software of the high-speed rail traction power supply dispatching simulation training system comprises 4 display screens and 1 workstation, wherein the 4 display screens form a simulation mode of '3 + 1', wherein 3 display screens are called SCADA (supervisory control and data acquisition) screens, 1 display screen is called a public service screen,
the software environment is high-speed rail traction power supply dispatching simulation training system software, a win10, a win7 or a windows xp Chinese operating system is adopted, and a development platform of the high-speed rail traction power supply dispatching simulation training system software adopts Visual C + + 6.0;
the software architecture includes the following subsystems: the system comprises a monitoring simulation subsystem, a communication simulation subsystem, a power supply management subsystem, a traction power supply system normal operation state simulation subsystem, a traction power supply system fault operation state simulation subsystem and a traction power supply secondary equipment system simulation subsystem;
the monitoring simulation subsystem is used for simulating a dispatching end and comprises a traction power supply primary wiring diagram drawing module, a power supply dispatching SCADA system operation simulation module and a power supply dispatching non-SCADA system operation simulation module;
the communication simulation subsystem is used for simulating a controlled end and a communication channel and comprises a processing simulation module for the traction power supply secondary equipment system to faults and a communication process simulation module;
the power supply management subsystem comprises a power supply equipment management module, a test question file editing module and a test question library module;
the system comprises a traction power supply system normal operation state simulation subsystem, a traction power supply dispatching simulation system and a power supply system load simulation subsystem, wherein the traction power supply system normal operation state simulation subsystem is used for establishing an equivalent circuit model of the traction power supply system and a current source model of an electric locomotive, carrying out power supply system load flow calculation to obtain voltage and current distribution under a normal load operation state of the traction power supply system, and providing simulated real-time electrical parameters for measurement points of each voltage transformer (PT) and each Current Transformer (CT) in the power supply system, so that a normal power supply operation state is established for the traction power;
the traction power supply system fault operation state simulation subsystem is used for building an electromagnetic transient simulation model of the traction power supply system, setting a short-circuit fault point, performing simulation calculation on the transient process of voltage and current in the fault state of the whole traction power supply system, particularly, at the measuring point where a voltage transformer (PT) and a Current Transformer (CT) are installed in the traction power supply system, performing simulation to output the numerical output and waveform output of continuous and digital fault voltage and current in a period of time after a fault occurs, and storing the numerical output and waveform output in a file form, thereby providing fault waveform and data for the simulation of a traction power supply secondary equipment system;
and the traction power supply secondary equipment system simulation subsystem is used for constructing a virtual relay protection device and an automatic device of the electric railway and realizing the simulation of the traction power supply system secondary equipment system.
On the basis of the scheme, the traction power supply primary wiring diagram drawing module forms a complete set of drawing platform aiming at the electrical wiring diagram, is used for drawing various primary wiring diagrams required in the high-speed rail power supply dispatching SCADA system, and associates primitives, voltage and current display windows, electrified colors of buses, feeders and contact network wires and the like in the diagrams to corresponding variables in a simulation training system database, so that each remote signaling point, remote measuring point and electrified and non-electrified indication in the wiring diagram are updated in real time according to state changes of the variables in the database; the graphic elements comprise circuit breakers and isolating switches.
On the basis of the scheme, the power supply dispatching SCADA system operation simulation module is used for simulating the operation on the power supply dispatching SCADA system through an SCADA screen; the operation of the simulation includes: the method comprises the steps of logging in a power supply dispatching SCADA system, calling a station and pavilion main wiring diagram, a contact network diagram and a power supply arm diagram of a traction power supply system to browse so as to confirm the running state of the system, switching on and off single control operation of switching on and switching off, carrying out multi-switch sequential switching on and switching off program control operation by executing a program control operation card, checking alarm information or fault reports and the like.
On the basis of the scheme, the power supply dispatching non-SCADA system operation simulation module is used for simulating the operation on the power supply dispatching non-SCADA system through a public service screen; the operation of the simulation includes: the power supply dispatching and line dispatching telephone conversation among the working area and the substation on-duty personnel, dispatching and sending short messages to each department, dispatching and taking videos to check the fault site condition, filling in a switching command table or an operation command table, and carrying out standard conversation with a monitoring dispatcher when the on-duty dispatcher carries out certain operation.
On the basis of the scheme, the virtual relay protection device and the automatic device for the electric railway are used for realizing various functions of an actual microcomputer protection device and the automatic device through an algorithm program, and the functions comprise: sampling, filtering, protecting algorithm, constant value comparison, logic judgment, action alarm, trip outlet and the like are carried out on fault current and voltage, and protection constant value operation, SOE event message generation and storage, fault recording and the like are realized;
the secondary device includes: the system comprises a main transformer differential protection device, a main transformer backup protection device, a feeder line protection device, an electric railway fault distance measuring device, an AT protection measurement and control device, a standby power supply automatic switching device and the like.
On the basis of the scheme, the fault processing simulation module of the traction power supply secondary equipment system is used for loading various fault data files generated by the traction power supply system fault operation state simulation subsystem into the virtual relay protection device of the electric railway and the automatic device compiled by the traction power supply secondary equipment system simulation subsystem for protection calculation analysis, calculating and analyzing an outlet virtual device to be protected, comparing the outlet action time of each outlet virtual device, finally determining a unique outlet trip virtual protection device, generating protection action information and a fault report of the virtual protection device, and simultaneously sending the protection action information and the fault report to the communication process simulation module.
On the basis of the scheme, the communication process simulation module is used for constructing a virtual telecontrol communication channel and realizing the simulation of the power supply dispatching SCADA system on the remote signaling, remote measuring and remote controlling functions of the traction power supply system; the telecontrol communication channel is used for simulating Ethernet and transmitting simulation data of the traction power supply secondary equipment system simulation subsystem to the monitoring simulation subsystem through an IEC60870-5-104 communication protocol, so that a primary wiring diagram of the SCADA simulation system displays various electrical parameters and running states of the traction power supply system, a dispatcher simulates various operations on the monitoring simulation subsystem and transmits operation commands to the traction power supply secondary equipment system simulation subsystem through the IEC60870-5-104 communication protocol to realize various controls; the simulation data comprises protection action information and a fault report.
On the basis of the scheme, the power supply equipment management module is used for establishing the telemetering, remote signaling and remote control relations between each secondary equipment in the controlled terminal and the controlled kiosk and the primary equipment controlled by the secondary equipment, and relating the relations to the database of the simulation training system.
On the basis of the scheme, the test question file editing module is used for generating various fault emergency disposal test question files.
On the basis of the scheme, the test question file editing module comprises the following basic operation types: "weather condition", "scene setting", "time mark management", "accident management", "single control operation", "program control card", "voltage setting", "current setting", "transmission setting", "driving setting", "kiosk setting", "fixed telephone operation", "call selection", "electric control conversation", "scene confirmation", "short message operation", "video operation", "fault passage", "switching command", "operation command", "screen operation", "window operation", "login operation", "remote communication operation", "delay operation", "prompt operation", and the like.
On the basis of the scheme, the test question library module is used for storing the specific test question files edited by the test question file editing module into the test question library according to fault types so as to call out operation when a dispatcher trains; the test question library module comprises the following test question types: automatic disappearance disposal of contact net hanging foreign matters, disposal of the contact net hanging foreign matters requiring power failure, non-power-cut disposal of the contact net hanging foreign matters, abnormal closing emergency disposal of split-phase isolation switches, successful emergency disposal of T-line fault tripping reclosing of high-speed rail contact networks, failed emergency disposal of T-line fault tripping reclosing of the high-speed rail contact networks, F-line fault emergency disposal of the high-speed rail contact networks, fault emergency disposal of high-speed rail power supply lines, load characteristic tripping emergency disposal of the high-speed rail contact networks, low-voltage overcurrent protection action emergency disposal of main transformers of traction substations, protection action tripping emergency disposal of main transformers of traction substations, single-bus low-voltage overcurrent protection action emergency disposal of secondary sides of main transformers of traction substations, power failure emergency disposal of power supply of all substations of traction substations, successful closing emergency disposal of out-phase and even reclosing of contact networks, out-phase short-, Emergency disposal of a phase-falling and phase-separating part of the electric locomotive of the high-speed railway, emergency disposal of a pantograph-catenary fault of a motor train unit and emergency disposal of an icing fault of a contact network.
Drawings
The invention has the following drawings:
fig. 1 is a schematic diagram of a power supply arm in a multi-line full-parallel AT power supply mode.
Fig. 2 is a flow chart of a simulation of fault handling by the secondary equipment system.
Fig. 3 is a schematic structural diagram of a high-speed rail traction power supply scheduling simulation system.
Fig. 4 is a schematic diagram of a data communication simulation implementation method.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The high-speed rail traction power supply dispatching simulation training system is a set of SCADA simulation system which is based on a plurality of computer display screens and can realize remote signaling, remote measuring and remote control functions on a high-speed rail traction power supply system, and also simulates operations such as video monitoring of a telephone, a traction power supply system, a switching command table and filling of an operation command table. The power supply dispatcher performs various tasks such as monitoring, situation awareness, command issuing, remote switching operation, fault emergency handling and the like in the environment. The high-speed rail traction power supply dispatching simulation training system sufficiently simulates the equipment environment of an actual dispatching system based on a computer, and can simulate various operations of the equipment more truly.
The high-speed rail traction power supply dispatching simulation training system is completely independent of an actual high-speed rail power supply dispatching system for railway production, and has no influence on the actual dispatching system. The high-speed rail traction power supply dispatching simulation training system has an independent data source, can provide electrical parameters of a simulated high-speed rail power supply system in a normal power supply state and transient electrical parameters of the simulated high-speed rail power supply system in various fault states, can simulate various switch shifts and the like caused by a relay protection device and an automatic device after a fault occurs, and can simulate comprehensive traction power supply running state information for dispatching personnel.
The high-speed rail traction power supply dispatching simulation training system not only enables a dispatcher to be trained on various SCADA systems, but also mainly enables the dispatcher to be trained comprehensively, systematically and pertinently in the aspect of fault emergency disposal. Therefore, the most basic fault emergency treatment exercise types covered by the simulation training system should include all fault emergency treatment types involved in the basic power supply fault emergency treatment process and the supplementary content of the basic power supply fault emergency treatment process issued by the general railroads of China.
Key technology of high-speed rail traction power supply scheduling simulation training system
The development of the high-speed rail traction power supply dispatching simulation training system firstly needs to establish the running state of a traction power supply system. The running state of the traction power supply system is divided into a normal running state and a fault running state. The operation and function of secondary equipment systems (relay protection devices and automatic devices) for supplying power to high-speed rail traction are simulated. Therefore, the operation background supporting environment of the high-speed rail power supply dispatching simulation training system is really established, and the operation background supporting environment is the operation basis of the high-speed rail traction power supply simulation training system.
(1) Simulation of normal running state of high-speed rail traction power supply system
The normal running state of the traction power supply system is the no-load running state of the power supply system when no train passes through and the load running state of the power supply system supplying power to the electric locomotive when the train passes through. In order to realize the simulation of the load running state of the high-speed rail traction power supply system, a simulated high-speed rail line is divided into a plurality of power supply areas, namely, a traction substation is taken as a core and power supply arms on two sides are taken as a power supply area, a train drives into the power supply area, and the electrical parameters of measuring points of a voltage transformer (PT) and a Current Transformer (CT) on a main wiring diagram of a station and a pavilion in the area are determined by the load state of the driving train.
The simulation of the no-load running state is simple, the normal three-phase power supply voltage on the 220kV high-voltage power supply system side of the traction substation in each power supply area is 220kV, the access phase sequence of the three-phase voltage is considered, and the voltage values to earth of the electrified phase (A phase and B phase) of two sections of 27.5kV buses in the substation and the voltage values to earth of the T line PT and the F line PT in each section can be calculated through the transformation ratio of the traction transformer in the substation. By judging the closing states of the circuit breakers and the isolating switches of the feeder line for supplying power to the power supply arms on the two sides in the station, the electrified phase and the voltage value of the 27.5kV bus in the station are deduced through electrified deduction, and the electrified phase and the voltage value of the PT of the feeder line (T line and F line) in the middle AT station of the power supply arm and the terminal subarea of the power supply arm are deduced. The current values of all the CTs of the whole power supply area are zero.
In the simulation of the load running state, an AT power supply mode with fully parallel multiple lines is commonly adopted in high-speed railway lines in China, as shown in figure 1. When a train of trains runs on a power supply arm at one side of a certain power supply area, in order to simulate the load running state of a traction power supply system in real time, the train is regarded as a load current source, and the load current of the train is I. As shown in figure 1, a single-phase traction transformer in a traction substation SS of a power supply area supplies power for the power supply arm in an up-down mode, an autotransformer of an AT station in the middle of the power supply arm and an autotransformer of a SP station AT the tail end of the power supply arm supply power for the power supply arm in the up-down mode through a transverse connection line between an upper T line, a lower T line and an F line, and the length of a first AT section of the power supply arm is D1The second AT segment length is D2And the running position of the train AT the moment is that the second AT section of the ascending line is away from the autotransformer x of the AT.
Mutual inductance between the upper line and the lower line of the traction network is temporarily ignored, the leakage reactance of each AT is assumed to be 0, and the parameters of the upper line and the lower line of the traction network are considered to be equivalent. Because all the ATs in the upper and lower rows are transversely connected in parallel, three closed loop voltage equations (omitted) formed by connecting the upper and lower rows of the train with T1 and T2, R1 and R2, and F1 and F2 in the short loop of the second AT section in parallel are written, and the equations are solved:
Figure BDA0002234106570000091
it can be seen from the above formula that under the condition that the train load current I is known, the current distribution expressions of the up and down wires of the power supply arm are functions of the locomotive position x, based on the above expressions, the current distribution in the train traction network under the conditions of different x positions and different x train load current I can be conveniently and rapidly calculated, and according to the calculated current distribution of the traction network, the CT display value calculation formulas of all current measurement points in the traction substation, the AT substation and the subarea substation can be further written according to the main wiring topological structures of the traction substation SS, the AT substation and the subarea substation SP, as shown in table 1.
TABLE 1 CT display value calculation formula for station and pavilion when train runs on second AT segment of power supply arm
Figure BDA0002234106570000101
According to the table 1, the CT current values of the up feeder line and the down feeder line in the traction substation (such as IT231SS, IF231SS, IT251SS and IF251SS), the single-phase CT current values of the low voltage side of the traction transformer of the substation (such as ITSS and IFSS), the three-phase CT current values of the high voltage side (such as IA, IB and IC), the CT current values of the up feeder line and the down feeder line of the AT (such as IT231AT, IF231AT, 251AT and IF251AT), the CT current values of the up feeder line and the down feeder line of the subarea (such as IT232 IT SP, IF232SP, IT252SP and IF252SP), the CT current values of the outgoing line of the autotransformer (such as ITAT and IFAT) operated by the AT, the outgoing line CT current values of the autotransformer (such as ITSP and IFSP) operated by the subarea, the traction transformer and the neutral line grounding return current values of the autotransformer (such as I0AT and I0SP) when the train runs.
Then, based on the rated voltage (such as UA, UB and UC) of 220kV of the high-voltage three-phase incoming line of the substation, the voltage value (such as UTSS and UFSS) of a low-voltage side bus PT of the transformer under the load state is calculated by calculating the voltage drop of the current (such as ITSS and IFSS) of the transformer of the substation through the impedance of the transformer. And (4) simulating the running of the train, and changing the x to repeat the calculation, so that the simulation of the load running state of the high-speed rail traction power supply system can be realized.
Table 1 shows the calculation of the current display values AT each kiosk CT installation when a train is operating AT the second AT segment x of the power arm. Similarly, by the method for solving the column-writing closed-loop voltage equation, a traction network current distribution calculation formula of a train running on the first AT section of the power supply arm can be obtained, two trains of traction network current distribution calculation formulas of the train running on the first AT section and the second AT section of the power supply arm respectively, three trains of train running on the first AT section and the second AT section respectively, and four trains of train running on the upper and lower AT sections respectively, so that calculation formulas of display values of the transformer substation, the AT station, the subarea feeder line, the bus CT and the PT when one train of train running on the power supply arm to four trains respectively can be obtained, which is not described herein.
(2) Simulation of fault operation state of high-speed rail traction power supply system
In addition to the contact network hanging foreign matter fault, various short-circuit faults, particularly faults caused by tripping due to short circuit on the contact network, which occur in the station and the pavilion of the traction power supply system account for a large proportion of faults occurring in the high-speed rail traction power supply system. Therefore, in order to simulate various fault emergency treatment processes of tripping caused by short circuit, the high-speed rail power supply dispatching simulation training system firstly carries out simulation calculation on the fault voltage distribution and the fault current distribution of the whole traction power supply system after a short circuit fault occurs at a certain position of the system. Particularly, at the measuring points of PT and CT installed in a station or a pavilion, the numerical value output and waveform output of continuous and digital fault voltage and current within a period of time after the fault is output in a simulation mode, so that fault waveforms and data are provided for the simulation of the relay protection of the traction power supply secondary equipment system.
Based on PSCAD/EMTDC electromagnetic transient simulation software, an electromagnetic transient simulation model of the traction power supply system is built by means of a graphical user simulation interface, and the transient process of the voltage and the current of the whole system can be simulated and calculated by setting a short-circuit fault point.
Discrete numerical results output by all PT and CT simulation in the power supply area are stored in a text file form and are used for analog sampling and calling of a virtual relay protection device (program).
(3) Simulation of high-speed rail traction power supply secondary equipment system
In the case of a high-speed rail traction power supply system fault, such as a contact grid hanging foreign matter, a phase separation place of an electric locomotive and the like, the fault is generally notified to a power supply dispatcher through a telephone and then is dealt with by the power supply dispatcher. The power supply system is used for judging whether the power supply system is in a power failure state or not, and judging whether the power supply system is in a power failure state or not according to the judgment result of the power failure state or not. And the trip caused by the short-circuit fault and the generated fault report data come from secondary equipment systems, namely a relay protection device and an automatic device, in each station and a pavilion of the traction power supply system.
In order to correctly simulate trip information and fault data information generated at a dispatching end after a fault occurs, a high-speed rail power supply dispatching simulation system realizes simulation of a traction power supply system secondary equipment system by constructing a virtual protection device and an automatic device of a power rail. The virtual protection and automation device realizes various functions of the microcomputer protection device and automation device through an algorithm program, including sampling of fault current and voltage (analog sampling is performed by reading a fault waveform data file generated by fault simulation), filtering, protection algorithm (FFT), fixed value comparison, logic judgment, action alarm and trip outlet and the like, and can realize protection fixed value operation, SOE event message generation and storage, fault recording and the like.
The simulated protection includes at each kiosk of the traction power supply system: the main protection of the traction transformer (including differential quick-break protection, ratio differential protection and gas protection), the backup protection of the traction transformer (including high-voltage side three-phase overcurrent protection, low-voltage side single-phase overcurrent protection, overload protection, no-voltage protection, PT disconnection detection and the like), the feeder protection (including distance protection, current quick-break protection, overcurrent protection, current increment protection, reclosing, acceleration protection after reclosing, PT disconnection detection and the like), the transformer protection (including no-voltage protection), the electric railway fault ranging (including AT ranging method and reactance ranging method), the AT protection measurement and control (including AT differential current protection, ATT line overcurrent protection, ATF line overcurrent protection, AT case-touching overcurrent protection, no-voltage tripping detection, voltage detection switching-on and the like), and the backup power supply automatic switching (including inlet wire no-voltage backup automatic switching and main transformer fault automatic switching).
Development of high-speed rail traction power supply dispatching simulation training system
The traction power supply dispatching simulation training system of the high-speed railway is also called as a telemechanical SCADA (Supervisory Control and Data acquisition) system, namely a Data acquisition and monitoring Control system. The system utilizes a computer software technology, a communication and network technology, a detection and automatic control technology and the like to carry out data collection, equipment control, information processing, fault judgment and the like on the traction power supply system in the running process of the high-speed rail, thereby ensuring the economic and safe running of the traction power supply system and providing reliable power guarantee for the running of the high-speed rail.
The high-speed rail traction power supply dispatching system generally comprises a dispatching end, a controlled end and a communication channel, as shown in fig. 3. The dispatching end is arranged in a high-speed rail operation dispatching control center and is responsible for real-time monitoring, data statistics and management functions and the like of the telecontrol object. The software environment is a set of SCADA system which is based on computer multi-screen display and can realize remote measurement, remote signaling and remote control functions for a high-speed rail traction power supply system, and the hardware environment is auxiliary facilities such as a telephone base, a video monitoring, a short message platform, a switching command table, an operation command table and the like besides a monitoring computer for operating the SCADA system. The controlled end is arranged in a traction substation, an AT station, a subarea station and the like and a pavilion along the high-speed rail, is monitored by the dispatching end, and is generally responsible for the functions of data acquisition and transmission, command receiving and execution and the like by a comprehensive automation system in the station and the pavilion. The communication channel is a medium for transmitting information and is the basis for realizing the telecontrol function of the system.
In order to better reflect the logic division of the system and facilitate subsequent development, the high-speed rail traction power supply scheduling system is abstracted into three modules which are related to each other in function and independent in design process: monitoring simulation, communication simulation and power supply management. All modules are compiled respectively, the details inside the modules are designed independently, and the modules are not affected. Because the simulation system is independent of the actual system, the data collected by the simulation system is generated by the built traction power supply system model.
A development platform of the high-speed rail traction power supply scheduling simulation training system adopts Visual C + + 6.0.
(1) Simulation of high-speed rail traction power supply dispatching monitoring system
The basic function of the high-speed rail power supply dispatching simulation system is to simulate various dispatching operations performed by a power supply dispatcher on a dispatching center operating platform, the operations can be divided into two types, one type is based on dispatching operation of an SCADA system, and the other type is based on dispatching operation of the SCADA system, such as: logging in, calling a station and a pavilion main wiring diagram, a contact network diagram and a power supply arm diagram of the traction power supply system to browse so as to confirm the running state of the system, performing single control operation of switching on and switching off the switch or performing program control operation of multi-switch sequential switching on and switching off by executing a program control operation card, and checking operations such as alarm information or fault reports; another class is non-SCADA system operations such as: the power supply dispatching and line dispatching, telephone conversation among workers in a work area and a substation, dispatching and sending short messages to all departments, calling and taking videos to check the fault site condition, filling a switching command table or an operation command table, and carrying out standard conversation and the like between a value dispatcher and a monitoring dispatcher when the value dispatcher carries out certain operation. Therefore, in actual switching and fault emergency treatment work, the power supply scheduling combines the operation of the scheduling SCADA system and the operation of the non-SCADA system to form the monitoring system operation of the high-speed rail power supply scheduling.
In order to realize the simulation of the operation of the high-speed rail power supply dispatching monitoring system, the high-speed rail traction power supply dispatching simulation system establishes a '3 + 1' simulation system mode of high-speed rail power supply dispatching, namely: the SCADA system of the power supply scheduling is simulated by 3 display screens (called SCADA screens), so that the power supply scheduling personnel can simulate various SCADA system operations through the SCADA screens; the operation of various non-SCADA systems is simulated by 1 display screen (called as a public service screen), and the operation of various non-SCADA systems can be simulated by power supply dispatchers through the public service screen by simulating a program control telephone, a short message platform, a video system, an electronic switching command table, an operation command table and the like on the public service screen.
The simulation of the high-speed rail traction power supply dispatching monitoring system comprises the following three modules: the system comprises a traction power supply primary wiring diagram drawing module, a power supply dispatching SCADA system operation simulation module and a power supply dispatching non-SCADA system operation simulation module.
Drawing module for drawing primary wiring diagram of V-shaped traction power supply
The basic interface of the high-speed rail power supply dispatching SCADA system is a geographical map of a traction power supply system of a certain high-speed rail, a main wiring map of a traction substation, an AT station and a subarea station, a contact network map and a power supply arm map of the traction power supply system and the like. Therefore, a primary wiring diagram drawing module of the traction power supply system is developed in the high-speed rail power supply dispatching simulation system, and various drawing tools such as lines, rectangles, circles, polygons, combinations, curves, reports, buttons, bar diagrams, pie charts and the like are compiled, so that a set of complete drawing platform for the electrical wiring diagram is formed. Based on the module drawing platform, various primary wiring diagrams required in the high-speed rail power supply dispatching SCADA system can be drawn, and primitives such as circuit breakers, isolating switches and the like, voltage and current display windows, electrified colors of buses, feeders and contact network wires and the like in the diagrams can be related to corresponding variables in a simulation system database, so that all remote signaling points, remote measuring points and electrified and non-electrified indications (colors) in the wiring diagrams are updated in real time according to state changes of the variables in the database.
Simulation module for operation of SCADA system for power supply scheduling
To make a simulation system of a certain high-speed rail power supply dispatching SCADA system, not only the interface of the simulation system needs to be consistent with that of an actual dispatching system, but also the simulation system needs to have simulation of various functions and operations of the actual dispatching system. For the whole high-speed rail traction power supply dispatching simulation system, according to an actual dispatching SCADA system main interface, the uppermost part of the simulation system main interface is a menu bar, and a picture switching mode is set in the menu bar to quickly switch to a pavilion main picture to be checked.
A picture option in the menu bar may select various types of pictures of the system. Besides, a picture left-right switching button is designed, and the main wiring diagram switching of adjacent kiosks can be realized.
Various primary image pictures of the traction power supply system can be randomly called out on the three SCADA screens, and images can be pushed among the three screens. When a certain image has a switch displacement event, the image automatically pops up on the main screen and pushes the original image of the main screen to the adjacent screen.
The dispatcher can perform single control operation of opening and closing and opening and closing aiming at the switch and the pressing plate with telemechanical function on the primary graph on the SCADA simulation system. The program control operation cards of all the kiosks are programmed, a dispatcher can execute the program control cards on the SCADA simulation system, the program control automatic operation can be carried out on the sequential switching of a plurality of switches between the kiosks and the houses, and in addition, a charged derivation algorithm is adopted along with the switching-on and switching-off of the switches, and a primary graph has charged indication corresponding to the states of the switches.
Simulation module for operation of power supply scheduling non-SCADA system
The simulation of the operation of the power supply dispatching non-SCADA system is to simulate all telephone operation, a short message platform, a video system, a filling switching command table, an operation command table, a double-seat concurrent supervision mode and the like on 1 public service screen. Therefore, a short message button, a video button, a telephone button and a table button are added in an operation column below the public service screen picture, and operation step prompts in the fault emergency treatment process are listed in a window on the right side of the public service screen picture.
When the simulation system simulates a certain power supply fault scene, a dispatcher simulates that fault handling needs to call departments such as a line dispatching department, a work area, a substation or a production dispatching department, and the like, clicking a 'telephone' button, popping up a dispatching program control telephone picture on a public service screen, clicking a department button to be called on a telephone number plate, entering a call mode after ringing, carrying out filling type conversation by selecting or filling in empty keywords (such as fault property, time, action switch number, line identity, common milestone and the like) by adopting standard terms according to the fault condition of a power supply system, then sending or receiving, clicking the button to hang up after the mutual conversation between two parties is completed, and ending the conversation. When a certain department calls in under a certain power supply fault scene (such as a command for power supply dispatching and the like), the program-controlled telephone can be automatically popped up on the public service screen and accompanied by ringing and button flashing of the calling department, and a dispatcher answers and enters a call mode.
When the simulation system simulates a certain power supply fault scene, and a dispatcher simulates fault handling and needs to fill in a switching command, a 'form' button is clicked to select a switching command form, the switching command form is popped up on a public service screen, the filling content of the switching command form is filled according to the fault condition of the power supply system, and each item in the form is filled in a pull-down menu selection mode to fill in correct options. Fill job commands are similar.
When the simulation system simulates a certain power supply fault scene, and a dispatcher simulates fault handling and needs to check a fault site video, a video button is clicked, a video monitoring window pops up on a public service screen, and a corresponding video picture is selected according to a fault kilometer post provided by the simulation system to see the simulated site fault video.
When the simulation system simulates a certain power supply fault scene, and a dispatcher simulates fault handling and needs to send a short message to related personnel, a short message button is clicked, a short message platform interface is popped up on a public service screen, and the short message can be simulated and sent by inputting the content to be sent.
When the simulation system simulates a certain power supply fault scene, and a dispatcher simulates fault handling and needs to execute the operation of a telemechanical on-off switch, because the control mode of the monitoring system is a double-seat concurrent supervision mode, the monitoring dispatcher supervises when the dispatcher conducts telemechanical operation, and a standard language conversation exists between the two. This process public service screen can also be simulated.
Based on the above simulation of the operation of the high-speed rail power supply dispatching SCADA system and the non-SCADA system, the high-speed rail power supply dispatching simulation system basically realizes the simulation of various operations performed by a dispatcher in the actual dispatching work of the dispatcher, namely the switching operation of the power supply system under the normal condition and the emergency disposal under the fault condition, and lays a foundation for the subsequent editing and operation of various fault emergency disposal processes on the simulation system.
(2) Simulation of high-speed rail traction power supply dispatching communication system
Processing simulation of secondary equipment system on fault
And loading a fault data file generated by the traction power supply system fault operation state simulation calculation aiming at a certain fault into various virtual relay protection programs of all kiosks developed in the simulation of the traction power supply secondary equipment system for protection calculation analysis. The virtual protection device which needs to protect the exit is calculated and analyzed, then the exit action time of each virtual protection device is compared, the virtual protection device which is tripped by the only exit is finally determined, the protection action information and the fault report of the virtual protection device are generated, and the protection action information and the fault report are sent to the communication process simulation module, wherein the simulation process is shown in fig. 2.
Simulation of communication process
The high-speed rail power supply dispatching telemechanical system is an important data communication channel for establishing remote signaling, remote measuring and remote control functions between a high-speed rail power supply dispatching SCADA system and secondary equipment comprehensive automation systems of all stations and pavilions in a traction power supply system. The high-speed rail power supply dispatching simulation system applies a computer communication technology and a computer dynamic storage technology and realizes the simulation of remote signaling, remote measuring and remote control functions of the power supply dispatching SCADA system to the traction power supply system by constructing a virtual telemechanical communication channel. The simulated telecontrol system (software) simulates an Ethernet, protective action information and fault reports generated by secondary equipment systems of each substation, AT substation and subarea substation in the traction power supply system are transmitted to the traction power supply dispatching and monitoring simulation subsystem through an IEC60870-5-104 communication protocol, so that a primary wiring diagram of the SCADA simulation system is realized to display various electrical parameters and operating states of the traction power supply system, a dispatcher simulates various operations on the simulated SCADA system, and an operation command is transmitted to the secondary equipment systems of each substation, AT substation and subarea substation of the simulated traction power supply system through the IEC60870-5-104 communication protocol to realize various controls. The method for implementing the data communication process simulation is shown in fig. 4.
(3) Power supply management software
At present, a plurality of high-speed rail lines are operated in China, a traction power supply system of each high-speed rail line comprises a large number of primary devices and secondary devices, and the operation result of the devices determines the operation state of the whole traction power supply system. Therefore, in order to simulate the operation state of the traction power supply system, the high-speed rail power supply dispatching simulation system needs to manage all primary and secondary devices of the whole system so as to determine the mutual relation among all the devices. For this reason, power management software was developed, which mainly contains two functions, namely: and managing the power supply equipment and editing the fault emergency disposal drilling test question file.
Power supply equipment management
Taking a certain high-speed rail line as an example, the high-speed rail line is divided into eight power supply areas: a Changfeng mountain power supply area, an old palace power supply area, a Deng village power supply area, a Fuyang north power supply area and the like. Each power supply area comprises a traction substation and AT stations and subarea stations on power supply arms on two sides of the traction substation, the AT stations and the subarea stations comprise respective secondary equipment (such as main transformer differential protection, main transformer backup protection, body protection, feeder line protection, fault detection devices, spare power automatic switching, substation protection, comprehensive measurement and control and the like) and primary equipment (such as circuit breakers, isolating switches, voltage transformers, current transformers and the like), and the telemetering, telecommuting and remote control relations exist between the secondary equipment and the primary equipment. Therefore, the 'high-speed rail traction power supply scheduling simulation training system' develops power supply management software for the high-speed rail line, establishes the remote measurement, remote signaling and remote control relations between all primary and secondary equipment of the high-speed rail line through the executable file, and associates the relations with the database of the simulation system.
If a power supply area is selected AT the upper left of the power supply management interface, for example, a power supply area in the old palace hall is selected, all secondary devices in the old palace hall traction substation, the great mountain AT, the estuary village division, the Shimen mountain AT and the Liao village division of the power supply area in the old palace hall are listed AT the lower left of the interface. If a secondary device is selected (for example, old palace hall-traction institute-1T backup protection is selected), the remote signaling and remote control relationship between the protection device and the corresponding primary devices such as a circuit breaker, a disconnecting switch and a pressure plate and the remote sensing relationship between the protection device and the pressure and flow are listed on the right side of the interface. The establishment of the relation provides conditions for transmitting the operating parameters (voltage and current) and the states (switch on/off and pressing plate on/off) of the traction power supply system to the power supply dispatching SCADA end by each kiosk integrated automation system through the virtual telemechanical system.
Editing of check-up files
The core function of the high-speed rail traction power supply dispatching simulation training system is to enable high-speed rail power supply dispatching personnel to conduct drilling and examination on the emergency handling process of various high-speed rail traction power supply system faults through the simulated high-speed rail dispatching system. Therefore, a fault emergency disposal test question file editing module is developed in the power supply management software and used for generating various fault emergency disposal test questions. The power supply scheduling personnel drill various fault handling processes on the simulation system in a mode of executing test question files, and key points (such as fault properties, time, action switch numbers, lines, kilometers and the like) of the fault handling technology in the drilling process are examined in various SCADA operations and non-SCADA operations in forms of selection, filling in gaps and the like.
And clicking a test question editing button in a button column above the power supply management interface to open a test question file window, wherein the edited test questions are listed in the window. Clicking the 'new' button can edit the new test question, and clicking the 'edit' button can edit and modify the selected existing test question.
In the test question file editing module, for editing various operation steps (SCADA system operation and non-SCADA system operation) involved in the failure emergency treatment, a special development is made such as: the method comprises the following steps of 'weather condition', 'scene setting', 'time mark management', 'accident mark management', 'single control operation', 'program control card', 'voltage setting', 'current setting', 'transmission setting', 'driving setting', 'kiosk setting', 'fixed telephone operation', 'call selection', 'electric control conversation', 'scene confirmation', 'short message operation', 'video operation', 'fault passing', 'switching command', 'operation command', 'picture operation', 'window operation', 'login operation', 'remote communication operation', 'delay operation', 'prompt operation', and other 30 basic operation types. In the editing process of the test question file, clicking the 'adding step' button can pop up an operation type window, and the window lists all basic operation types. Selecting a type and setting it appropriately, the procedure is added to the test question file.
And arranging and combining the basic operation types according to a certain fault emergency disposal flow script provided by high-speed rail power supply scheduling, and finally generating a certain fault emergency disposal drilling test question file.
Fourth, high-speed rail traction power supply scheduling fault emergency disposal training question bank
The method comprises the following steps of compiling a training subject for emergency disposal of power supply faults of high-speed rail power supply dispatching, wherein a production mode of 'script + drama editing' is adopted, namely: the method comprises the following steps that a high-speed rail power supply dispatcher provides a standardized script document of emergency disposal of a certain fault according to a basic power supply fault emergency disposal process and basic power supply fault emergency disposal process supplement content issued by a general Chinese railway company and by combining the working practice of the high-speed rail power supply dispatcher; according to a standardized script document, a simulation training test question file of certain fault emergency disposal can be compiled out by applying nearly 30 basic operation types manufactured in an editing environment based on a test question file editing module of a power supply management subsystem of a developed high-speed rail power supply scheduling operation state and fault handling simulation system. When the training test question file is operated on the 3+1 simulation system, a dispatcher has experience similar to that of fault handling operation on an actual dispatching system, and the operation process and the operation correctness are recorded and judged by the system.
At present, the types of test questions contained in the manufactured high-speed rail traction power supply fault emergency disposal training test question library are as follows:
■ handling contact net hanging foreign body (foreign body automatically disappears);
■ handling contact net hanging foreign matter (power failure handling is needed);
■ disposing foreign matter on the contact net (without power cut);
■ emergency treatment of abnormal closing of the phase separation disconnecting switch;
■ high-speed rail contact network T line fault tripping reclosing success emergency disposal;
■ emergency treatment of T line fault tripping reclosing failure of a high-speed rail contact network;
■ F line fault emergency disposal of a high-speed rail contact network;
■ emergency handling of fault of high-speed rail power supply line;
■ high-speed rail contact network load characteristic trip disposal emergency disposal;
■ emergency disposal of low-voltage overcurrent protection action of a main transformer of the traction substation;
■ emergency treatment of tripping of main transformer protection action of the traction substation;
■ emergency disposal of the low-voltage overcurrent protection action of the secondary side single bus of the main transformer of the traction substation;
■ emergency disposal of power supply for all stations in traction substation;
■ successful emergency treatment of out-phase short circuit equal reclosing of the contact network;
■ emergency disposal of out-phase short circuit reclosing failure of the contact network;
■ emergency disposal at the phase-separating position of the high-speed railway electric locomotive;
■ emergency handling of pantograph-catenary faults of the motor train unit;
■ emergency treatment of icing fault of contact network;
each of the above types of test questions may have various environmental changes such as: faults occur in different power supply areas, different power supply arm kilometer post positions, different stations and kiosks, different phase separation positions and the like. At present, the number of fault emergency disposal test questions compiled in a test question library of a high-speed rail power supply dispatching operation state and fault processing analog simulation system manufactured for a certain high-speed rail line reaches hundreds.
The invention has the beneficial effects that:
the high-speed rail traction power supply dispatching simulation training system is installed and operated in a dispatching training classroom of a high-speed rail dispatching center of a railway bureau at present, and high-speed rail power supply dispatching personnel carry out technical training, rehearsal and examination on various aspects such as operation, fault emergency treatment and the like through the system. The effects exhibited in the application are as follows:
(1) the steps of various operation and fault emergency treatment processes compiled on the system are completely standardized, and the dispatcher trains through the system to standardize the operation flow of the dispatcher, so that the operation process of the dispatcher is standardized, and the randomness in the operation process is avoided.
(2) The fault emergency treatment training questions written on the system cover all contents related to a 'power supply fault emergency treatment basic flow and power supply fault emergency treatment basic flow supplement content' file issued by the general company of China railway, each power supply fault related in the file is treated, a plurality of power supply faults in the system have changes of background parameters, so that the training questions are richer, and more than ten corresponding training questions can be provided for treating one power supply fault. The method plays an important role in avoiding training tediousness and quickly improving the service technical level of dispatching personnel.
(3) The system can simulate rare faults which are not easy to occur in actual power supply, so that dispatchers can repeatedly exercise emergency treatment of the rare faults and summarize experience. Therefore, when the dispatcher works, once a certain rare fault occurs in the actual power supply dispatching system, the dispatcher cannot be overwhelmed by not encountering the fault or even misoperation occurs. This plays an important role in improving the strain capacity of the dispatcher.
The innovation points of the invention are as follows:
(1) the simulation calculation function of the load process and the fault process of the high-speed rail traction power supply system is provided, and through the simulation calculation result, the normal operation electrical working condition of the high-speed rail power supply dispatching simulation system and fault report data generated after a fault occurs can truly reflect the operation condition of the actual high-speed rail power supply dispatching system, so that power supply dispatching personnel can experience the operation state of the actual traction power supply system in a training environment.
(2) A high-speed rail power supply scheduling 3+1 simulation system mode is created, namely: the method is characterized in that 3 display screens (called SCADA screens) are used for simulating a power supply dispatching SCADA system, so that power supply dispatching personnel can simulate various monitoring system operations through the SCADA screens; the 1 display screen (called as a public service screen) is used for simulating the telephone call of the electric regulation, sending short messages, checking videos, issuing switching commands and operation commands, the conversation among the electric regulation and the like, so that power supply scheduling personnel can simulate various non-monitoring system operations through the public service screen.
(3) A simulation production mode of a power supply fault emergency disposal flow of 'script + drama' of high-speed rail power supply scheduling is created, namely: providing a standardized script document of emergency disposal of a certain fault by a power supply scheduling worker according to a basic power supply fault emergency disposal process and basic process supplementary content which are always issued by a railway and by combining the working reality of the power supply scheduling worker; according to a standardized script document, based on a software platform editing environment of a developed simulation system, near 30 basic operation types such as 'switching command', 'time mark management', 'program control card', 'telemechanical operation', 'call operation' and the like produced in the editing environment are applied, and a 'certain fault emergency treatment' simulation drilling process can be compiled out.
(4) The system software platform based on the high-speed rail traction power supply dispatching simulation training system can be used for manufacturing a power supply dispatching simulation system of any high-speed rail line which is operated or is about to be operated in China, so that the training environment and the training content of high-speed rail power supply dispatchers are completely consistent with the actual working condition of the high-speed rail power supply dispatchers, and the training work of the high-speed rail power supply dispatchers is more professional and targeted.
The operating environment requirements of the high-speed rail traction power supply scheduling simulation training system are as follows:
(1) a host computer: one workstation (for example, DELL T3620 workstation)
A CPU: kurui I7-7700 tetra-core 3.6 Hz;
memory: 8GDDR 4;
hard disk: 1T;
an optical drive: DVDRW;
a display port: 4 DP or HDMI display ports (supporting 1920 x 1080);
keyboard, mouse, micro tower type chassis;
(2) a display: 4 table (e.g. DELL P2719H)
Size: 27 inches;
resolution ratio: 1920 x 1080;
interface: DP, HDMI, VGA;
and (3) the other: rotary lifting blue light filtering IPS screen
(3) Operating the system: win10, win7, windows xp
Those not described in detail in this specification are within the skill of the art.

Claims (3)

1. The high-speed rail traction power supply dispatching simulation training system is characterized by comprising: the system comprises a hardware environment, a software environment and a software architecture, wherein the hardware environment comprises a monitoring computer for operating high-speed rail traction power supply dispatching simulation training system software;
the monitoring computer for operating the software of the high-speed rail traction power supply dispatching simulation training system comprises 4 display screens and 1 workstation, wherein the 4 display screens form a simulation mode of '3 + 1', wherein 3 display screens are called SCADA (supervisory control and data acquisition) screens, 1 display screen is called a public service screen,
the software environment is high-speed rail traction power supply dispatching simulation training system software, a win10, a win7 or a windows xp Chinese operating system is adopted, and a development platform of the high-speed rail traction power supply dispatching simulation training system software adopts Visual C + + 6.0;
the software architecture includes the following subsystems: the system comprises a monitoring simulation subsystem, a communication simulation subsystem, a power supply management subsystem, a traction power supply system normal operation state simulation subsystem, a traction power supply system fault operation state simulation subsystem and a traction power supply secondary equipment system simulation subsystem;
the monitoring simulation subsystem is used for simulating a dispatching end and comprises a traction power supply primary wiring diagram drawing module, a power supply dispatching SCADA system operation simulation module and a power supply dispatching non-SCADA system operation simulation module;
the communication simulation subsystem is used for simulating a controlled end and a communication channel and comprises a processing simulation module for the traction power supply secondary equipment system to faults and a communication process simulation module;
the power supply management subsystem comprises a power supply equipment management module, a test question file editing module and a test question library module;
the system comprises a traction power supply system normal operation state simulation subsystem, a traction power supply dispatching simulation system and an electric locomotive power supply system load simulation subsystem, wherein the traction power supply system normal operation state simulation subsystem is used for establishing an equivalent circuit model of the traction power supply system and a current source model of the electric locomotive, carrying out power supply system load flow calculation to obtain voltage and current distribution under a normal load operation state of the traction power supply system, and providing simulated real-time electrical parameters for measurement points of each voltage transformer and each current transformer in the power supply system, so that a normal power supply operation state is established for the;
the traction power supply system fault operation state simulation subsystem is used for building an electromagnetic transient simulation model of the traction power supply system, setting a short-circuit fault point, performing simulation calculation on the transient process of voltage and current in the fault state of the whole traction power supply system, installing a voltage transformer and a current transformer at a measuring point in the traction power supply system, performing simulation to output the numerical output and waveform output of continuous and digital fault voltage and current in a period of time after a fault occurs, and storing the numerical output and waveform output in a file form, thereby providing fault waveform and data for the simulation of a traction power supply secondary equipment system;
the traction power supply secondary equipment system simulation subsystem is used for constructing a virtual relay protection device and an automatic device of the electric railway and realizing simulation of a traction power supply system secondary equipment system;
the power supply dispatching non-SCADA system operation simulation module is used for simulating the operation on the power supply dispatching non-SCADA system through the public service screen; the operation of the simulation includes: the power supply dispatching and line dispatching telephone conversation among the working area and the substation on-duty personnel, dispatching and sending short messages to each department, dispatching and taking videos to check the fault site condition, filling in a switching command table or an operation command table, and carrying out standard conversation with a monitoring dispatcher when the on-duty dispatcher carries out certain operation;
the test question file editing module is used for generating various fault emergency disposal test question files; the basic operation types of the test question file editing module are as follows: "weather condition", "scene setting", "time scale management", "accident management", "single control operation", "program control card", "voltage setting", "current setting", "transmission setting", "traveling setting", "kiosk setting", "fixed telephone operation", "call selection", "electric tuning conversation", "scene confirmation", "short message operation", "video operation", "fault passage", "switching command", "operation command", "screen operation", "window operation", "login operation", "remote communication operation", "delay operation", "prompt operation";
the test question library module is used for storing the specific test question files edited by the test question file editing module into the test question library according to the fault types so as to call out the operation when the scheduling personnel train; the test question library module comprises the following test question types: automatic disappearance disposal of contact net hanging foreign matters, disposal of the contact net hanging foreign matters requiring power failure, non-power failure disposal of the contact net hanging foreign matters, abnormal closing emergency disposal of split-phase isolation switches, successful emergency disposal of T-line fault tripping reclosing of high-speed rail contact networks, failed emergency disposal of T-line fault tripping reclosing of the high-speed rail contact networks, F-line fault emergency disposal of the high-speed rail contact networks, fault emergency disposal of high-speed rail power supply lines, load characteristic tripping emergency disposal of the high-speed rail contact networks, low-voltage overcurrent protection action emergency disposal of main transformers of traction substations, protection action tripping emergency disposal of main transformers of traction substations, single-bus low-voltage overcurrent protection action emergency disposal of secondary sides of main transformers of traction substations, power failure emergency disposal of all substations of traction substations, short-phase equalizing successful closing emergency disposal of heterogeneous contact networks, heterogeneous short-phase reclosing failure emergency disposal of heterogeneous, Emergency treatment of a phase-falling and phase-splitting position of the electric locomotive of the high-speed railway, emergency treatment of a pantograph-catenary fault of a motor train unit and emergency treatment of an icing fault of a contact network;
the traction power supply primary wiring diagram drawing module forms a complete drawing platform aiming at an electrical wiring diagram, is used for drawing various primary wiring diagrams required in a high-speed rail power supply dispatching SCADA system, and relates the charged colors of primitives, voltage and current display windows, buses, feeders and contact net wires in the diagrams to corresponding variables in a simulation training system database, so that each remote signaling point, remote measuring point and whether or not indication in the wiring diagram is updated in real time according to the state change of the variables in the database; the graphics primitives comprise circuit breakers and isolating switches;
the power supply dispatching SCADA system operation simulation module is used for simulating the operation on the power supply dispatching SCADA system through the SCADA screen; the operation of the simulation includes: logging in a power supply dispatching SCADA system, calling a station main wiring diagram, a pavilion main wiring diagram, a contact network diagram and a power supply arm diagram of a traction power supply system to browse so as to confirm the running state of the system, switching on and off single control operation of switching on and switching off, performing program control operation of multi-switch sequential switching on and switching off by executing a program control operation card, and checking alarm information or fault reports;
the virtual relay protection device and the automatic device of the electric railway are used for realizing various functions of an actual microcomputer protection device and an automatic device through an algorithm program, and comprise the following steps: sampling, filtering, protecting algorithm, constant value comparison, logic judgment, action alarm and trip outlet are carried out on fault current and voltage, and protection constant value operation, SOE event message generation and storage and fault recording are realized;
the secondary device includes: the system comprises a main transformer differential protection device, a main transformer backup protection device, a feeder line protection device, an electric railway fault distance measurement device, an AT protection measurement and control device and a standby power supply automatic switching device;
the system comprises a traction power supply secondary equipment system fault processing simulation module, a communication process simulation module and a power supply system fault operation state simulation subsystem, wherein the traction power supply secondary equipment system fault processing simulation module is used for loading various fault data files generated by the traction power supply system fault operation state simulation subsystem into a virtual relay protection device and an automatic device of a power railway compiled by the traction power supply secondary equipment system simulation subsystem for protection calculation analysis, calculating and analyzing an outlet virtual device to be protected, comparing the respective outlet action time, finally determining a unique outlet trip virtual protection device, generating protection action information and a fault report of the virtual protection device, and simultaneously sending the protection action information and the fault report to the communication process simulation module.
2. The high-speed rail traction power supply scheduling simulation training system of claim 1, wherein the communication process simulation module is used for constructing a virtual telemechanical communication channel to realize the simulation of the power supply scheduling SCADA system on the remote signaling, remote measuring and remote control functions of the traction power supply system; the telecontrol communication channel is used for simulating Ethernet and transmitting simulation data of the traction power supply secondary equipment system simulation subsystem to the monitoring simulation subsystem through an IEC60870-5-104 communication protocol, so that a primary wiring diagram of the SCADA simulation system displays various electrical parameters and running states of the traction power supply system, a dispatcher simulates various operations on the monitoring simulation subsystem and transmits operation commands to the traction power supply secondary equipment system simulation subsystem through the IEC60870-5-104 communication protocol to realize various controls; the simulation data comprises protection action information and a fault report.
3. The high-speed rail traction power supply scheduling simulation training system according to claim 1, wherein the power supply equipment management module is used for establishing the telemetering, telecommuting and remote control relationships between each secondary equipment in the controlled terminal or the controlled kiosk and the primary equipment controlled by the secondary equipment, and relating the relationships to the database of the simulation training system.
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