三电平逆变器中共模电压抑制方法的研究与仿真  

Method Research and Simulation for Restraining the Common Mode Voltage Based on Three-level Inverter

作　　者：程冰[1] 陈明惠[2] 汤钰鹏[1] 

机构地区：[1]北京交通大学电气工程学院,北京100044 [2]长春轨道客车股份有限公司研发中心,吉林长春130062

出　　处：《通信电源技术》2007年第1期55-58,共4页Telecom Power Technology

摘　　要：文章对三电平逆变器输出中的共模电压进行了分析,为了减小共模电压带来的危害,文中采用了两种SPWM控制策略即传统三电平SPWM控制策略和降低共模电压的三电平SPWM控制策略。通过Matlab/Simulink仿真比较,结果表明两种策略都起到了抑制共模电压的作用,其中降低共模电压的三电平SPWM控制技术效果更为明显。The common mode voltage for the output of three-level inverter is analyzed. To diminish the harm caused by the common mode voltage, two control strategies of SPWM are adopted. At last they were simulated and compared through Matlab/Simulink. The effect shows that SPWM strategy of reducing common mode voltage is better.

关 键 词：三电平逆变器 共模电压 抑制方法 SPWM 控制策略 

分 类 号：TM464[电气工程—电器]