Modeling of battery charging algorithms

This paper describes a universal computer model of charging system for accumulator batteries. Among many strategies and approaches of accumulator battery charge, the main of them all are those involving charge with constant current and voltage and combined ones with switching the constant current and/or voltage during the charge. To understand the difference of state of charge (SOC) after the charging process, we developed a mathematic model of accumulator battery-charging system with the Matlab/Simulink software [4] based on the battery cell model. The developed computer model contains a charging controller built on the base of the S-Function module in the Matlab/Simulink. The signals from voltage and temperature sensors of each cell were considered as the input information signals, and the commands for setting up the required charging current value for each cell complied with the output signals. We used the model of multi-channel oscilloscope as the measuring and recording equipment. Today, more and more scientists and engineers are being involved into the research of efficient storage and usage of electric energy. One of the important tasks in energy saving technologies is efficient charging of accumulator batteries. To solve this task, we have developed a universal computer model of charging system for accumulating batteries. The S-function module allows simplifying the research of different battery charging algorithms using the control program written with the high-level language that provides comfortable toolbox both in research activity and solving the application-oriented tasks.