一种可提高电压利用率的波形变换实现方法

A New Approach of Waveform Modulation to Increase Voltage Usage Factor

为使电压利用率最高、输出的线电压波形最佳和谐波最小 ,提出了一种宽调制深度的波形连续调制方法 ,实现了调制深度可在 1 .1 5～ 2范围内的连续调节。结合堆波技术把它运用到大功率高压电机变频调速装置的研制上 ,取得了良好的效果。

In order to increase voltage usage factor,to enable output line voltage waveform to be optimal and harmonic minimum,an approach of continuous waveform modulation in a wide depth of modulation is given,the continuous adjustment of the depth in 1 15～2 is put into effect.With piling technology,the approuch is applied to high power and high tension frequency changing speed controllor,good results produced.