单元串联多电平变频器脉宽调制方法分析  

Analysis of PWM Method for the Cells Cascaded Multilevel Inverter

作　　者：孙建明[1] 欧阳红林[1] 葛照强[1] 

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙410082

出　　处：《防爆电机》2007年第4期11-13,21,共4页Explosion-proof Electric Machine

摘　　要：对多电平变频器不同的拓扑结构进行比较,研究分析单元串联多电平变频器的几种不同的调制策略。采用载波移相控制,通过Matlab仿真,分析调制比M变化时对输出相电压、线电压的影响以及谐波总畸变率的变化。The different topologic structures of multilevel inverter are compared. Various modulation strategies of cells cascaded multilevel inverter are analyzed and researched. By MATLAB simulation, the influence of variations of M modulation rate on output phase and line voltages are analyzed based on carrier phase-shifting control, and the variations of total distortion rate of harmonic are also analyzed.

关 键 词：高压变频器 多电平 单元串联 载波移相 

分 类 号：TM301.2[电气工程—电机]