公开(公告)号：US20230412259A1

公开(公告)日：2023-12-21

申请号：US18332977

申请日：2023-06-12

Applicant: KOREA AEROSPACE RESEARCH INSTITUTE

Inventor： Seok-Teak YUN

IPC: H04B7/185 ,  H02J7/00

CPC classification number: H04B7/18543 ,  H02J7/0048

Abstract: The present disclosure relates to an apparatus and method for estimating a state of charge of a satellite battery in a satellite system. According to the present disclosure, a method of operating an apparatus for estimating a state of charge includes obtaining satellite information indicating the status of the satellite according to a mission plan of the satellite, generating prediction information about a battery state of the satellite in a non-contact duration of the satellite from the satellite information based on a pre-learned artificial neural network, obtaining measurement information about a battery state of the satellite in a contact duration of the satellite; and estimating the state of charge of the battery based on the prediction information and the measurement information.

公开(公告)号：US20230408599A1

公开(公告)日：2023-12-21

申请号：US18328917

申请日：2023-06-05

Applicant: KOREA AEROSPACE RESEARCH INSTITUTE

Inventor： Seok-Teak YUN

IPC: G01R31/392 ,  G01R31/367 ,  G01R31/3835

CPC classification number: G01R31/392 ,  G01R31/367 ,  G01R31/3835

Abstract: A method for estimating an aging amount of a battery mounted on a satellite includes receiving battery voltage and current data generated by detecting a voltage and current of the battery in a preset first sensing period during a precise sensing period, determining a mission start time point based on the battery current data, obtaining a first battery voltage value of a first time point based on the battery voltage data and the mission start time point, obtaining a second battery voltage value of a second time point when a preset reference time elapses from the first time point based on the battery voltage data, and estimating the aging amount of the battery based on a sensing voltage difference between the first battery voltage value and the second battery voltage value, a first reference voltage difference, and a second reference voltage difference.