基于智能直流母线传感的三相双有源桥直流偏置提取与消除

This letter proposes a novel dc-bias flux extraction and elimination method to prevent transformer core saturation in three-phase dual-active bridge converters with a minimum count of sensors. Distinguished from the state-of-the-art dc-bias detection method that measures the three-phase currents or flux, the proposed method monitors the dc-link current and reconstructs the three-phase currents by ...