二极管箝位型三电平逆变器正弦脉宽调制方法比较

摘要:在调节三电平逆变器的输出电压时,通常采用脉宽调制方法。本文对常用的几种脉宽调制方法进行了详细分析,比较了各自的优缺点,其中着重指出了各种方法对直流回路电压的利用率、输出电压谐波的特点以及对中点电位的影响等,最后给出了仿真结果。英文摘要:Pulse width modulation methods are frequently used in adjusting the output voltage of the three-level inverter. Firstly several PWM methods are elaborated. Then when compared with