Simulation Research Of Train Traction Calculation On The Passenger-Dedicated Lines

In Recent years, with the continuous development of China’s high-speed railway construction,the railway passenger transportation has a rapid growth not only number but also the quality of passenger service, especially the EMU Vehicle as a fully new brand of tansportation service, taking a important part in people’s travel. The EMU Vehicle,with economical and technology characteristics of high-speed, large capacity, smoothly operation and high energy consumption, has a more function requirements on train traction caculation than the traditional train. The usual train traction calculation software mostly be developed and programmed for the metro and urban rail transit, which hardly meet the demand of EMU train operation. Therefore, research on control strategies of EMU train on continuously varying gradient and speed-limit track according to the actual run condition will have a significance value in reducing the energy consumption.The thesis,referring to others previous research results and theory, proposes heuristic algorithm optimization on fast run strategy which can be use to the simulation of EMU movement.The heuristic algorithm has a detail consideration on the EMU movement characteristic,in which the EMU will run in traction-coasting model and stop in station with the reverse calculation method. At the last,the result of simulation on fast run strategy proves that the optimization algorithm can reduce the rate of traction and energy consume. Moreover, this article bases on the Energy Model and the research results which AnHui Unviersity professor CHENG Jia-xing and Cheng Jinsong have made in given run time strategy,making some improvement that two critical velocity can be varied by a goal-velocity and stop in station by reserve computation method,which can promise the train run on the given time and stop at the desire distance.The result of train simulation run with the fixed time shows that the algorithm is high accuracy and feasible.Finally, this paper develop the program of two operating strategy of rapid control strategy and given time control strategy on the delphi solfware develop platform. The CRH2EMU has been used to run on the designed EMU traction simulation system and the data of simulation can be showed on the chart.Combined with graphics and the analysis of the result data, the train traction simulation system is proved effect and can adjust to EMU well. The achievements of the thesis has a significant practical use in searching the optical EMU operation strategy and caculating the track passing capacity.