正弦脉宽调制波转换到方波(或相反)时,三相逆变器输出电压会发生明显突变。本文利用脉冲移位方法,提出两种过渡转换技术,即“二方波法”和“一方波法”。用这两种方法可使电压突变大为减小,实现平滑转换。在过渡转换阶段中波形的高次谐波分量也是允许的。 When a sinusoidal pulse width modulated wave is converted to a square wave (or vice versa), the output voltage of the three-phase inverter changes suddenly. In this paper, we use the pulse shift method to propose two kinds of transitional conversion techniques, namely “two-wave method” and “one-wave method.” With these two methods can make sudden changes in voltage to achieve a smooth transition. Higher harmonic components of the waveform are also allowed during the transitional transition phase.