【摘要】 为了克服传统串级调速系统功率因数低的缺点 ,提出了一种新型斩波式串级调速方案。该方案中的逆变电压与逆变电流的夹角可以在 15 0°与 180°之间变动 ,有效地提高了串级调速系统的功率因数更多还原

【Abstract】 Due to the shortcomings of low power factor some treditional cascade speed regulation systems, a high power factor chopping cascade speed regulation is proposed in this paper. The angle between the reverse voltage and current is changed from 150° to 180°, which raises the power factor of the whole drive system greatly.更多还原