Publication

Abstract : This paper introduces a novel approach for supporting electric vehicles (EVs) with a hybrid energy source system, which alleviates the strain on a single power supply. Typically, in conventional EVs, the battery serves as the sole power source for all operational needs. However, this can lead to challenges during rapid acceleration, deceleration, and braking phases, where the motor draws a high current. Insufficient state of charge (SOC) in the battery may result in thermal stress and reduced battery life. To mitigate this, the paper proposes the integration of ultra-capacitors into the system to extend the vehicle's battery life. In this setup, the battery provides high-energy support, while the ultra-capacitors supply high power during sudden acceleration, deceleration, and braking. This hybrid approach reduces the load on a single source and prolongs the lifespan of the energy storage components. The system utilizes a battery and ultra-capacitors connected to a DC-DC converter for power distribution among the sources. When needed, these sources can be linked to the Permanent Magnet Synchronous Motor employed (PMSM) in the EV. For controlling the Permanent Magnet Synchronous motor, a control technique called Field Oriented Control (FOC) is used. The entire system is developed and simulated using MATLAB/Simulink.