公开(公告)号：US20230400524A1

公开(公告)日：2023-12-14

申请号：US18455920

申请日：2023-08-25

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zhiwu XU ,  Jialong XU ,  Haibin GUO

IPC: G01R31/3842 ,  H02S50/10

CPC classification number: G01R31/3842 ,  H02S50/10

Abstract: A power supply system and an IV curve scanning method for a power supply system. The power supply system includes at least a first inverter and a second inverter. The first inverter starts, at an IV curve scanning start time of the first inverter, to perform IV curve scanning on a string connected to the first inverter, and the second inverter starts, at an IV curve scanning start time of the second inverter, to perform IV curve scanning on a string connected to the second inverter. Their IV curve scanning start time is different. In addition, a time interval between the IV curve scanning their start time is less than a preset IV curve scanning period. In the embodiments, fluctuation of an output power of the power supply system during IV curve scanning can be reduced, thereby improving system stability of the power supply system.