| 1. | Based on the modularized asi , cascade inverter topology structure and modulation mode is introduced in this paper . comparing with several control strategies such as single closed - loop feedback and dual close - loop instantaneous value feedback , the voltage - current dual closed - loop control strategy , which is the voltage effective value feedback and inductance current instantaneous value feedback , is adopted
针对级联逆变器讨论其pwm调制技术,在比较几种pwm调制技术的基础上,对该级联逆变器采用倍频载波移相调制技术,其输出不含载波谐波,边频谐波次数比二阶和三阶调制的边频谐波次数提高一倍,等效开关频率也提高一倍。 |
