CRH2动车组三电平PWM整流器仿真及谐波分析  

Three-Level PWM Rectifier Simulation and Harmonic Analysis of CRH2 Electric Multiple Units

作　　者：何国军[1] 王旭峰[1] 

机构地区：[1]西南交通大学电气工程学院,成都610031

出　　处：《电力学报》2010年第6期455-457,共3页Journal of Electric Power

摘　　要：CRH2高速动车组采用三电平PWM整流器,针对单相三电平PWM整流器在牵引传动中的要求,分析了其结构与工作原理,研究了PWM调制原理及其电压电流的双闭环控制方式。采用Matlab/Simulink进行CRH2单相三电平PWM整流器仿真。实验表明,电压电流双闭环控制能实现网侧功率因数接近于1,直流侧电压稳定。并运用双边傅立叶变换方法,分析其电流谐波特点。The rectifier is three-level PWM rectifier in CRH2 electric multiple units（EMU）,considering for the special demands of the single phase three-level PWM rectifier in railway drive application,analyze the operation principle,research the principle of PWM and the double closed loop control is analyzed.Using Matlab/Simulink for CRH2 single-phase three-level PWM rectifier simulation,experimental results show that double closed loop control can reach unity power factor,stabilization of DC-link.And then use Fourier transform to analyze the current harmonic characteristics.

关 键 词：整流器 脉宽调制 双闭环控制 谐波 CRH2动车组 

分 类 号：TM461[电气工程—电器]