公开(公告)号：US20220069700A1

公开(公告)日：2022-03-03

申请号：US17516325

申请日：2021-11-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Heping Dai ,  Dianbo Fu ,  Huibin Zhu

IPC: H02M1/42 ,  H02M3/155 ,  H02M7/217

Abstract: A bidirectional power conversion system includes three power conversion ports. A first power conversion port includes a power factor correction device and a primary power conversion network. A second power conversion port includes a plurality of switches and a plurality of diodes, wherein an output voltage of the second power conversion port is regulated through adjusting an output voltage of the power factor correction device as well as through adjusting an operating parameter of the primary power conversion network. A third power conversion port includes a first switch network and a power regulator connected in cascade, wherein the first power conversion port, the second power conversion port and the third power conversion port are magnetically coupled to each other through a transformer.

公开(公告)号：US20210155103A1

公开(公告)日：2021-05-27

申请号：US16911353

申请日：2020-06-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huibin Zhu ,  Heping Dai ,  Yongtao Liang ,  Weiping Liu ,  Feng Su ,  Shaohua Wang

IPC: B60L53/24 ,  B60L53/22 ,  H02J7/02 ,  H02M3/335 ,  H02M7/5387 ,  H02P27/06

Abstract: According to one aspect of the present disclosure, there is provided an apparatus that includes a battery, a Direct Current (DC) bus connected to the battery, and a DC to DC converter connected to the battery in parallel with the DC bus. A Motor Control Unit (MCU) is connected between the DC to DC converter and an electric motor. An Alternating Current (AC) port is connected to the electric motor. Switches connect the DC bus and an output of the DC to DC converter in series as an input to the MCU in a drive mode and disconnect the DC bus from the MCU in a charge mode.

公开(公告)号：US11165338B2

公开(公告)日：2021-11-02

申请号：US16899456

申请日：2020-06-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Heping Dai ,  Dianbo Fu ,  Huibin Zhu

IPC: H02M1/42 ,  H02M3/155 ,  H02M7/217

Abstract: A bidirectional power conversion system includes three power conversion ports. A first power conversion port includes a power factor correction device and a primary power conversion network. A second power conversion port includes a plurality of switches and a plurality of diodes, wherein an output voltage of the second power conversion port is regulated through adjusting an output voltage of the power factor correction device as well as through adjusting an operating parameter of the primary power conversion network. A third power conversion port includes a first switch network and a power regulator connected in cascade, wherein the first power conversion port, the second power conversion port and the third power conversion port are magnetically coupled to each other through a transformer.

公开(公告)号：US20210016672A1

公开(公告)日：2021-01-21

申请号：US17061252

申请日：2020-10-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huibin Zhu ,  Heping Dai ,  Yongtao Liang ,  Weiping Liu

IPC: B60L53/22 ,  B60L50/61

Abstract: According to one aspect of the present disclosure, there is provided an apparatus that includes first, second, and third power converter stages connected to a transformer module. At least one of the first, second, and third power converter stages is a multi-level power converter stage that has multiple configurations to generate different output voltages from an input voltage.