公开(公告)号：WO2022152382A1

公开(公告)日：2022-07-21

申请号：PCT/EP2021/050678

申请日：2021-01-14

Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD. ,  OU, Shuyu

Inventor： MUHAMMAD, Yaqoob ,  HONG, Qingzu ,  SUN, Wenbo ,  TORRICO-BASCOPÉ, Grover, Victor

IPC: H02M3/00 ,  B60L53/10 ,  H02J7/02 ,  H02M3/335 ,  H02M7/5387 ,  H02J1/00

Abstract: A control method for a hybrid three-port DC-DC power converter combining a dual active bridge converter and a dual active bridge series resonant converter topology. The controller includes a first control loop to regulate power flow between the first port and the second port and a second control loop to regulate power flow between the second port and the third port. The first control loop employs a three-mode control methodology to regulate power flow through the dual active bridge converter between the first port and the second port. The second control loop is configured with a lower bandwidth than the first control loop and regulates power flow through the dual active bridge series resonant converter between the second port and the third port.

公开(公告)号：WO2023083430A1

公开(公告)日：2023-05-19

申请号：PCT/EP2021/081015

申请日：2021-11-09

Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD. ,  MUHAMMAD, Yaqoob

Inventor： MUHAMMAD, Yaqoob

IPC: H02M3/335 ,  H02M3/00

Abstract: A bi-directional series-resonant DC-DC power converter apparatus incorporating an improved multi-mode controller eliminates burst mode operation while supporting a wide voltage range handling capability. The converter includes a half bridge switching network and a full bridge switching network coupled together with a series resonant impedance including an inductor, a capacitor, and a transformer. Under normal and heavy load conditions, a controller regulates the converter output by varying the switching frequency of a half bridge and a full bridge switching network. The converter phase shift ensures ZVS operation based on a converter gain.Under light loading, the switching frequency will exceed a pre-determined maximum frequency and a second control mode is employed where the switching frequency is set to the maximum frequency and converter output is regulated by using a feedback control loop to vary the phase shift and duty cycle of the two switching networks.