Design And Analysis Of Multilevel Current Charging For Electric Vehicles

Development of Electric Vehicles (EV) in recent year's lithium batteries becomes as the principal energy source due to the peak value of energy density, better power density and, long lifespan. Fast and proficient charging of batteries is a must for battery propelled automobiles. However, it takes a few minutes to fuel the petrol-powered vehicles but an EV takes 4-6 hours to complete the charging depends on C-rate. This paper presents the modeling and simulation of a multi current charging method for a two-wheeled electric vehicle. The proposed method uses a closed-loop control to derive the charging current through a buck converter power conditioning circuit. To validate the proposed charging method, the circuit is simulated in MATLAB/ Simulink environment and the results are compared with that of the constant current charging (CC) method and Constant Current-Constant Voltage (CC-CV) charging method.