Comparative Analysis of Battery Management System Equalization Methods

Electric batteries are being used more frequently as a result of the growing adoption of electric vehicles (EVs). To get the high voltage needed by EVs, battery packs are created by joining several battery cells together. A battery pack’s linked battery cells should ideally all have the same voltage. However, achieving perfect voltage uniformity across the cells is difficult in practise because of a number of inescapable circumstances. EVs and other battery-powered gadgets have considerable challenges while operating safely and effectively due to unbalanced battery cell voltages. Reduced storage capabilities and, in severe situations, explosions or fires, can be brought about by these voltage imbalances. As a result, the equalisation of battery cell voltages has grown to be a crucial area of research, with the goal of creating and improving methods that deal with this problem. Incorporating different significant features, numerous studies have been done to investigate and enhance battery cell voltage equalisation techniques. This study offers a thorough and methodical analysis of several cell equalisation methods. An inductor-based, SC-based, and resistor-based equalisation circuit case study is used to compare the performance of the two equalisation circuits.