Assessment of State of Charge estimation techniques for Li-Ion battery pack

摘要

State of Charge (SoC) estimation of Li-ion batteries is crucial for the efficient operation of Electric vehicles. The article emphasis on the comparison of various techniques for SoC estimation of Li-ion batteries. Techniques selected for comparison is based on the easiness in implementing without compromising the accuracy. Simulation of CC and a combination of CC with an equivalent electric circuit model of a battery cell with closed-loop correction is carried out in MATLAB. The performance is evaluated and simulation results are presented.