动车组牵引电动机全速域控制的研究与仿真.pdfVIP

2011 年 电 工 技 术 学 报 Vol.26 Sup. 1 第 26 卷增刊 1 TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY 2011 动车组牵引电动机全速域控制的研究与仿真 韩 坤 冯晓云 葛兴来 孙鹏飞 （南京航空航电源重点实验室 210016 ） 摘要 动车组运行时，会按照设计的牵引特性曲线控制牵引电动机。由于牵引电动机功率较 大，动车组全速域运行时，不同速度段对牵引电动机控制需采用不同的调制算法。本文针对所研 究动车组牵引传动系统主电路采用带中点箝位二极管的三电平拓扑结构的特点，分析三电平逆变 器 SVPWM 异步调制策略、同步调制策略、方波控制的原理以及转子磁场定向矢量控制系统基本 原理。进而运用Matlab/Simulink 进行动车组牵引电机全速域运行控制仿真。仿真结果表明，控制 系统能够在全速域范围内完成对动车组牵引电动机的准确控制。 关键词：动车组 三电平逆变器 同步调制 全速域控制 中图分类号：TM464 Research and Simulation on Full Speed Range Control of EMU Traction Motor Han Kun Feng Xiaoyun Ge Xinglai Sun Pengfei （Southwest Jiaotong University Chengdu 610031 China ） Abstract The traction motor is controlled according to the designed traction characteristics curve when Electrical Multiply Unit(EMU) runs. Due to the large power of the traction motor, different pulse modulation algorithm are adopted at different speed regions when EMU runs in full speed range. According to the characteristic of three-level neutral point clamped traction inverter adopted in the main circle of EMUs’ traction drive system, the principle of synchronous, asynchronous modulation, pulse control and rotor field orientated vector control are analyzed. Based on Matlab/Simulink, the simulation of EMU traction motor full speed range control is carried out in full speed range. The simulation results show that the control system can realize accurate control of EMU traction motor in full speed range. Keywords ：EMU, three level inverter, synchronous modulation, full speed range control