公开(公告)号：US11984812B2

公开(公告)日：2024-05-14

申请号：US17631457

申请日：2020-09-18

Applicant: Hitachi Energy Ltd

Inventor： Uwe Drofenik ,  Thomas Gradinger ,  Francisco Canales

IPC: H02M3/335 ,  H02M3/00 ,  H02M3/337 ,  H02M1/00

CPC classification number: H02M3/33584 ,  H02M3/01 ,  H02M3/33571 ,  H02M3/33573 ,  H02M3/337 ,  H02M1/0085

Abstract: A dual active bridge DC/DC converter in accordance with the invention comprises a first DC link, preferably comprising a first DC link capacitor; a converter bridge connected to the first DC link; a transformer, preferably a medium frequency transformer, having a primary side and a secondary side; the primary side of the transformer comprising a plurality of M>1 primary windings, each of the plurality of primary windings having a first and a second terminal; wherein the dual active bridge DC/DC converter further comprises a first plurality of M energy transfer inductors; and wherein for each of the M primary windings, a different one from the first plurality of energy transfer inductors is connected between said primary winding bridge and the converter bridge.