公开(公告)号：US20250158534A1

公开(公告)日：2025-05-15

申请号：US18945929

申请日：2024-11-13

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zisen Qu ,  Mingquan Zhao ,  Meiqing Zhang ,  Kai Xin ,  Yunfeng Liu

IPC: H02M5/458 ,  H02J3/38 ,  H02M1/00

Abstract: A power conversion system which includes N power conversion units and a control unit. The control unit selects a target power conversion unit and a coordinated power conversion unit in a control periodicity, controls an operating mode of the target power conversion unit to be sequentially switched between a PR mode and a MPPT mode, and updates a reference power based on a maximum power obtained in the MPPT mode, for an operating power of the target power conversion unit in the PR mode to be an updated reference power, and the updated reference power is less than or equal to the maximum power. In addition, the control unit controls an operating power of the coordinated power conversion unit to be coordinately adjusted, for a total variation of operating powers of the N power conversion units to be less than a variation threshold.