Optimized Field Oriented Control for Induction Motor Driven Electric Vehicles

Electric Vehicles (EVs) are gaining popularity among the researchers due to support from governments worldwide. There are various electric motors reported in the literature for driving the electric vehicle. Induction motor (IM) is one of the cost effective and maintenance free motor amongst available lot. The use of induction motor for the purpose of traction needs to have an appropriate speed control along with less torque ripples. Field oriented control (FOC) is an established method of speed control after being researched for past three decades. It requires precise speed control with less torque ripples under dynamic conditions. This would be effectively obtained through vector control technique with optimized controller gains. This paper demonstrates the use of a two-level inverter and a PI controller to implement an indirect FOC technique for an IM. The system simulation has been performed on MATLAB Simulink tool, using the extra urban driving cycle (EUDC) as the input signal. The system performance is evaluated at different time intervals. The presented results demonstrate improved control with better performance.