公开(公告)号：US20240385248A1

公开(公告)日：2024-11-21

申请号：US18665878

申请日：2024-05-16

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jie XIE

IPC: G01R31/367 ,  G01R31/385 ,  G01R31/392 ,  G01R31/396

Abstract: An energy storage apparatus includes a battery control unit, a battery monitor unit, and a plurality of cells. The battery control unit is configured to receive a battery state of health (SoH) value estimation model from cloud device, and the battery monitor unit is configured to obtain an estimated SoH value of a first cell based on a real-time equivalent circuit model parameter of the first cell in the plurality of cells and the battery SoH value estimation model. According to the energy storage apparatus, a battery SoH value is estimated by using an artificial intelligence model, and deep charging and discharging do not need to be performed on a battery, so that the battery SoH value can be accurately obtained in a plurality of application scenarios, and a battery capacity abnormality risk can be identified in advance, thereby improving stability of an energy storage system.