A Single Stage Three Phase Bidirectional Rectifier With Power Electronic Star-Star Connection Transformer

This paper presents a three phase pulse-width modulated rectifier with power electronic star-star connection transformer which offers bidirectional power flow. Power electronic star-star connection transformer proposed requires less switch count and benefit from the reduction in volume and weight. Power electronic star-star connection transformer proposed can be used for utility applications. The following are the main benefits: There is only one stage of conversion, there is no need for an inconsistent midway hefty dc link capacitor, and great power density is attained. To accomplish required voltage at load and to maintain unity power factor, this study utilizes a decoupled d-q reference frame control strategy.