Direct Torque Control of Permanent Magnet Synchronous Motor

Pages:129-132
Vikas Sindhu and Anil Sangwan1, H.M.Rai2 (Department of ECE, University Institute of Engineering and Technology, MDU, Rohtak 1 Department of ECE, N C College of Engineering, Israna2)

A novel technique of controlling synchronous motor called direct torque control, which controls both electromagnetic torque and flux directly. A direct torque control (DTC) scheme based on the measurement and observation of stator current and flux vector is proposed. The actual torque is estimated through the stator flux estimation. The evolution of direct torque control from other prevalent control strategies has been outlined. A model of direct torque control scheme using VSI and CSI inverter for synchronous motor has been developed using SIMULINK/MATLAB (application software). Simulation has been carried out for various operating conditions and simulation results in form of computer traces have been presented. Thus this work may be the small step towards a bigger venture of physical realization of the scheme.