公开(公告)号：US20230076934A1

公开(公告)日：2023-03-09

申请号：US17940402

申请日：2022-09-08

Applicant: Huawei Digital Power Technologies Co, Ltd.

Inventor： Lin Li ,  He Zhou ,  Haibin Guo

IPC: G01R31/387 ,  G01R31/374 ,  H02J7/00

Abstract: An energy storage system includes a control apparatus and one or more battery sub-arrays. Each battery sub-array includes one or more energy storage racks. Each energy storage rack includes one or more battery packs. The control apparatus is configured to: determine that parameter calibration needs to be performed on a first energy storage rack in a first battery sub-array; when the first energy storage rack meets a preset condition, increase a weight of the first energy storage rack in the first battery sub-array; and after each battery pack in the first energy storage rack is fully charged or remaining power of the battery pack is fully discharged, perform calibration on a parameter of the battery pack.