So PWM with higher frequence can be used to eliminate the low-frequence harmonics of bus current and reduce the distortion rate of current waveform.

 
  • 因此可以采用頻率更高的脈寬調制PWM脈沖,能基本上消除電網(wǎng)側電流的低次諧波,減少電流波形的畸變率;
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