考虑数字控制与PWM效应的三相并网变换器多频小信号建模

The traditional averaging modeling methods applied for digitally controlled power converters are insufficiently accurate in the s-domain due to the neglect of the broadband frequency coupling effect introduced by the digital control and pulsewidth modulation (PWM) effect. In this article, an s-domain multifrequency small-signal model of a digitally controlled three-phase grid-tied voltage source c...