Performance Analysis of EV Battery Module with Different Charging Techniques for Better Stability

Electric vehicles are the replacement for conventional fossil fuel engine vehicles. The EV is installed with a battery pack to store electrical power which drives the vehicle. The charging circuit and the driving circuit have independently isolated circuit topologies. Each circuit operates individually and complimentarily, as during charging, the vehicle does not move. There are different types of charging circuits that control the charging current of the battery. In this paper, we consider a conventional buck-boost circuit topology for charging the battery, controlled by different charging techniques. The converter is controlled by either CV or CC charging which need voltage and current feedback, respectively. The different charging techniques include i) Continuous, ii) Pulse, iii) Burp, and iv) Taper. To improve the health of the battery, these charging techniques are employed which change the way of charging. For testing of the charging techniques, a high capacity (40kWh) battery of the 'TATA Nexon EV' vehicle is considered in the simulation. A comparative analysis is done in MATLAB software on the proposed charging circuit with different charging techniques and the results are presented concerning time.