Design And Implementation Of The Traction Calculation Simulation System For The Urban Rail Train

The purpose of the train traction calculation is reasonable control of the train, whichmakes the train run faster and uses less energy consumption in the premise of ensuring thesafety for the train operation.At present, the development of the urban rail transit in China is rapid, and many citiesare planning the construction of the urban rail transit. The urban rail transit has become animportant mean of the transport for the people to travel because it has little pollution.Furthermore, the other modes of transportation do not have such punctual and comfortableadvantages. The train control system is an indispensable part for the urban rail transitconstruction. Controlling the urban rail train reasonably can reduce the security risks for thetrain. It is of significance to save the national energy saving and facilitate the public travel forthe realistic society, so the simulation calculation and dynamic modeling have become thefocus for the research in this paper.It is an economical and reliable method to simulate the whole process of the trainoperation by the computer simulation technology. However, the research in this area oftenneeds secondary development because the one hand, the models are relatively simple and onlyadapt to ordinary models, on the other hand, the models constantly update so that theyincrease the difficulty and cost in the simulation.The thesis analyses the loading features and the influences in the different condition,which finds out the relationship between the parameters in the process of running train basedon the overseas and domestic research status and the train traction calculation theory. It alsoimproves the calculated traction simulation system based on the previous one and adds somefunction while the traditional train traction simulation system does not have. Some specificinnovative achievements were proposed in this thesis as follows.(1) Firstly, the thesis introduces the single-particle model and the multi-particle modelabout the urban rail transit train, and analyses the respective advantages and disadvantages,and it improves the single-particle model for the system, thus, the improved model not onlysolves the inaccuracy for the single-particle model calculations but also avoids the trivialityfor the multi-particle model calculations.(2) The paper studies the operation strategy in the urban rail transit, analyses andcompares different operation strategies. It gets the advantages and disadvantages in thedifferent strategies and optimizes the operation strategy for the urban rail transit by geneticalgorithm.(3) The paper develops the traction calculation simulation system for the urban railtransit based on the single-particle model. The system has realized the simulation of the urbanrail transit by VC++and MALTAB software.(4) The thesis tests the system with Shijiazhuang metro Line2. The results from the system are consistent with the expected results.The thesis has developed a simulation system for the urban rail trains and realized thesimulation of the urban rail transit.