接触网网压波动下动车组恒速控制策略的仿真研究  

Research and Simulation on Constant Speed Control Strategy of High-speed EMU with Different Catenary Voltage

作　　者：韩坤[1] 冯晓云[1] 杨顺风[1] 黄金[1] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031

出　　处：《铁道机车车辆》2008年第B12期118-120,共3页Railway Locomotive & Car

摘　　要：动车组运行时,接触网网压会在一定范围内波动。为使动车组在接触网网压波动范围内实现在0～250km/h范围内任意速度下稳定运行而引入了一种恒速控制策略。此恒速控制策略通过牵引控制与恒速控制之间平滑过渡,防止在不同控制方式之间切换时引起较大的转矩和电流波动。仿真模型采用直接转子磁场定向控制系统,牵引整流器采用正弦脉宽调制控制的带中点箝位二极管的三电平拓扑结构,牵引逆变器采用空间电压矢量控制的带中点箝位二极管的三电平拓扑结构,仿真结果验证系统具有良好的动、静态特性,并能够很好的实现接触网网压波动下动车组恒速控制。The voltage of the catenary fluctuates in a certain range when EMU runs.The paper introduces a control strategy which comes true that EMU can run steadily at any speed from 0 to 250 km/h. Great current impulsion is avoided by rational conversion between traction control and constant speed control. Direct rotor flux oriented control system is adopted in the paper. The three level neutral point clamped traction rectifier with SPWM control is adopted. The three level neutral point clamped traction inverter with SVPWM control is adopted. Simulation results prove that the control system has many advantages such as very good dynamic and steady function.

关 键 词：动车组 接触网网压波动 恒速控制 

分 类 号：TM33[电气工程—电机] TP273[自动化与计算机技术—检测技术与自动化装置]