公开(公告)号：US12169428B2

公开(公告)日：2024-12-17

申请号：US17735608

申请日：2022-05-03

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zhuyong Huang ,  Xiaofei Zhang ,  Zhengdong Jiang

IPC: G06F1/26 ,  H02M3/155 ,  H02M7/217 ,  H02J1/10 ,  H02J7/02 ,  H02J9/06

Abstract: Embodiments of this application disclose a power supply apparatus, a power supply system, and a data center designed to reduce the number of power conversion steps, equipment costs, and circuit loss. The power supply apparatus includes: a solid-state transformer configured to convert an alternating current into a first direct current; a first direct current/direct current converter, coupled to the solid-state transformer and configured to convert the first direct current into a second direct current; an energy storage component, coupled to the first direct current/direct current converter and configured to perform energy storage on the second direct current; and a second direct current/direct current converter, coupled to the first direct current/direct current converter and configured to convert the second direct current into a third direct current, where the third direct current is used to supply power to a load.

公开(公告)号：US20230327575A1

公开(公告)日：2023-10-12

申请号：US18325638

申请日：2023-05-30

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zhengdong Jiang ,  Chuntao Zhang ,  Maoyong Lu

IPC: H02M7/483 ,  H02M1/32

CPC classification number: H02M7/4835 ,  H02M1/325 ,  H02M7/4833

Abstract: A modular multilevel converter (MMC) includes an input conversion module, an output conversion module, a common conversion module, and a common bridge arm. One end of the input conversion module is connected to Vin, the other end of the input conversion module is connected to the common conversion module through the common bridge arm, and the common conversion module is connected to Vin and Vout. One end of the output conversion module is connected to the common conversion module through the common bridge arm, and the other end of the output conversion module is connected to Vout. The input conversion module and the output conversion module share one bus capacitor.

公开(公告)号：US20230170814A1

公开(公告)日：2023-06-01

申请号：US18161225

申请日：2023-01-30

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zhengdong Jiang ,  Peng Shuai ,  Zhuyong Huang

IPC: H02M5/14 ,  H02M1/00 ,  H02M1/36

CPC classification number: H02M5/14 ,  H02M1/007 ,  H02M1/36

Abstract: A solid-state transformer (10) that maintains output voltage continuity during maintenance is provided. The solid-state transformer includes an input end (101), a plurality of power units (U1 to UM), and an output end (102). The input end is configured to input first three-phase alternating-current electrical power. The plurality of power units are connected in parallel to the input end and the output end, and each power unit is configured to convert the first three-phase alternating-current electrical power into first direct-current electrical power, and output the first direct-current electrical power from the output end. A power supply system (100) including the foregoing solid-state transformer is further included.