公开(公告)号：US12015304B2

公开(公告)日：2024-06-18

申请号：US17969194

申请日：2022-10-19

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zhou Shu ,  Ran Li

IPC: H02J9/06 ,  H02J3/01 ,  H02J3/18 ,  H02J3/32

CPC classification number: H02J9/062 ,  H02J3/01 ,  H02J3/18 ,  H02J3/32

Abstract: A power supply system includes a plurality of parallelly-connected uninterruptible power supplies (UPSs), where each UPS collects a first current of the UPS within a collection period in a first duration. In a current equalization period in the first duration, a direct current to alternating current conversion module is controlled to output a first compensation current, where the first compensation current includes at least one of a first compensation reactive current component or a first quantity of first compensation harmonic components.

公开(公告)号：US20230122255A1

公开(公告)日：2023-04-20

申请号：US17969194

申请日：2022-10-19

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zhou Shu ,  Ran Li

IPC: H02J9/06 ,  H02J3/18 ,  H02J3/01 ,  H02J3/32

Abstract: A power supply system includes a plurality of parallelly-connected uninterruptible power supplies (UPSs), where each UPS collects a first current of the UPS within a collection period in a first duration. In a current equalization period in the first duration, a direct current to alternating current conversion module is controlled to output a first compensation current, where the first compensation current includes at least one of a first compensation reactive current component or a first quantity of first compensation harmonic components.