A CAD Software for Traction Drive System of High-Speed Train Led by Top-Level Technology Goals

High Speed railway passenger transport of china developed rapidly in recent years. System integration is even more important. For this reason, a CAD software for Traction Drive System of High Speed Train is being developed based on researching on Traction curve, regenerative braking curve, the match of electrical and mechanical characteristics, calculation of electrical parameters, control method of motor and converter, arithmetic of running simulation etc. This paper provides a whole develop project of this CAD software, and presents the design ideas, the framework, the function and the modules. The application of this simulator aims at designing a traction drive system of High Speed train can be suitable for a certain line. This traction drive system must meet the technical requirements led by the top-level technology goals for the line. This CAD software has three main functions. First, design traction curve, regenerative braking curve and some electrical parameters of traction drive system according to the technical requirements. Second, run the High Speed train on the certain line. Speed curve, current and voltage curves of motor, temperature rise of motor and converter, running time, energy consumption can be got by the simulation. Third, decide whether the train’s performance meet the technical requirements according to the simulation results, and improve the design.