【摘要】 对三点式逆变器主电路作了理论分析。着重分析了改变控制角α时逆变器输出电压和输出电流的波形,推导了带电动机负载时的电流表达式,并给出了计算实例。文中所提供的分析方法可以引用到多脉宽调制方式中去。最后给出了实现磁通轨迹控制的初步设想。更多还原

【Abstract】 Theoretic analysis is made upon the main circuit of three-level inverter, focusing on the waveforms of the inverter output voltage and current when the control angle α is changed. A current formulae is deduced under motor load condition, with calculation example attached, The analysis method adopted in the article can be aPPlied to multiple Pulse width modulation. Finally, conceptual frame for magnetic flux locus control is proposed.更多还原