高速列车牵引供电系统建模及短时断电工况仿真

摘要

In order to research the performance of electric multiple unit (EMU) traction driver system at different states, according to the actual structure and parameter of CRH2 EMU, the simulation model of its traction driver system was established by Matlab/Simulink software. In this model, the transient current control and indirect rotor magnetic field orientation vector control strategy were adopted by traction motor, and the sine pulse width midulation(SPWM) and space vector pulse width modulation(SVPWM) modulate method were used by traction converter. On this basis, operation performance of traction converter was simulated and analyzed under different train speed when the pantograph temporarily disconnect to grid. The simulation results provide a reference for the actual design and performance analysis of traction converter.%为研究不同丁况下高速列车牵引供电系统的工作状态和性能,根据CRH2型高速列车牵引供电系统的实际结构与参数,采用Matlab/Simulink软件建立了整个系统的仿真模型,模型中牵引变流器采用正弦脉宽渊制(SPWM)和空间矢量脉宽调制(SVPWM)两种方式,牵引电机采用适用于高速列车的瞬态电流控制和转子磁场定向矢量控制策略.基于此模型,仿真并分析了列车在不同运行速度下.受电弓短时断电时牵引变流器的性能.分析结果为列车牵引变流器的实际设计和性能分析提供了参考.