Calibration System of SOC Characteristics Curve of Satellite Battery Array Simulator

This paper proposes a method and system for calibrating the SOC characteristics of a satellite battery array simulator. The calibration system consists of a battery array simulation module, a simulator SOC curve acquisition module and a curve comparison module. The battery array simulation module uses the second-order RC equivalent circuit model to model the satellite battery array simulator, and calculate the parameters of the battery simulator model dynamically. The standard model of the satellite battery array simulator is established, and then the standard SOC curve is collected for reference. The simulator SOC curve acquisition module utilizes an improved adaptive Kalman filtering algorithm to process battery test data, and the ampere hour integration method is used to acquire the SOC characteristic curve of the satellite battery array simulator; The curve comparison module uses curve convolution to achieve the similarity between the standard SOC curve and the simulator SOC curve, which could achieve the accurate calibration of the satellite battery array simulator.