dual-pwm frequency conversion
...双PWM变频；12脉冲整流；三电平逆变；矩阵控制变频 [gap=678]Key words ：inverter; power electronic device; dual-PWM frequency conversion; 12 pulse rectification; three-level frequency conversion; matrix control frequ..
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dual-pwm frequency conversion
双pwm变频
以上为机器翻译结果，长、整句建议使用 人工翻译 。