New direct torque control scheme of induction motor for electric vehicles

In this paper, new scheme of direct torque control of induction motor for electric vehicles is proposed and the results of an investigation into suitable torque control schemes are also presented. The electric vehicle drive consists of rewound induction motors and a three-level IGBT inverter. The schemes investigated are field-oriented control, direct torque control (DTC), and DTC using space vector modulation. The results of Matlab-Simulink simulations and a comparison between the control schemes are presented. It is found that the DTC using space vector modulation scheme is best for this application.