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The University of Southampton
University of Southampton Malaysia

Research project: Improved Direct Torque Control of Induction Motor Drive for Plug-in Electric Vehicle

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Electrified transportation such as electric vehicle (EV) has been growing fast thanks to the advanced power electronics technology. The latest high performance induction motor drive employs direct torque control (DTC) scheme to controls rotor torque and stator flux separately.

DTC is a sensorless technique with simple implementation and fast dynamic response achievement. However, it suffers from high torque ripple particularly at low speed. In addition, low speed operation faces difficulty in controlling torque and flux that causes droop in stator flux. This project proposes an alternative inverter topology with improved DTC schemes. In addition, a technique for plug-in battery charging from three-phase grid without external charger is proposed. This project will be conducted in two phases. Intensive theoretical studies and computer simulations are crucial prior to implementation of a laboratory prototype. The experimental results will be analyzed to justify the performance of the proposed system.

 

Note: This is joint research project between University of Southampton Malaysia Campus and Power Electronics and Drive Research Group (PEDG), UTM.

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