Calibration method of SOC characteristics of spacecraft battery pack simulator

A significant parameter of the spacecraft battery pack simulator is the state of charge (SOC) parameter, which is one of the parameters that users are most concerned about during the use of the spacecraft battery pack simulator. Other parameters of the spacecraft battery pack simulator, such as terminal voltage, current, pressure, temperature, etc., are always given together with the value of the state of charge (SOC) in which they are located. The battery SOC parameter is a process quantity, and only one SOC estimation value can be obtained. In the battery simulation, the simulator gives the time-varying SOC value during the charging and discharging process according to the initial SOC state, charging and discharging conditions. Therefore, the time-varying SOC value given by the battery pack simulator must be accurately calibrated to ensure the accuracy of the battery pack simulator SOC change.