With the rapid development of urban rail transit in China, it is very important to improve the techniques and safety of the train control system. For the improving of the system performance analysis method and the optimization strategy in the system design and verification stage, The simulation system of urban traffic train running headway capacity of tracing&turn-back is studied in this thesis, which also provides an open platform for the study of train operation organization,running headway capacity, energy consumption optimization.This paper analyze the structure,functional requirements and the main functions of every subsystem of the simulation system,and clear the main contents of the man-machine interface subsystem;This paper studies the safety braking model recommended by IEEE1474.1standard, combines with the dynamic model, realizes train overspeed protection algorithm, according to simulation path, line conditions, the vehicle parameters and system parameters and so on selected by users,calculates emergency braking envelope curve, emergency braking trigger curve, the full-service braking trigger curve and the command velocity curve.This paper makes train simulation operation strategy, to realize the train simulation operating, can simulate the moving situation of the train under different working conditions fraction, braking, emergency braking,coasting, uncontrolled acceleration, generates train simulation speed-distance curve and interval running time-distance curve, realizes train interval tracking,turn-back tracking and platform area tracing simulation in the moving block mode;This paper designs the man-machine interface display interface, realize the basic input parameters, simulation calculation, graphical display of the line information, various train protection curve and operating curve information.This simulation system designs the internal interface, realizes information exchange and data sharing.Practice has proved, simulation system of urban traffic train operating headway capacity of tracing&turn-back has been conducted a successful test and verification in the14city track traffic projects. |