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The paper deals with design and simulation of 2-phase direct torque controlled induction motor (IM) drive using space-vector modulation (SVPWM). The IM drive is supplied 2-phase full bridge inverter. The control system uses direct torque control method with PI controllers of torque and flux denoting by reduced torque ripple. Simulation results in both motoring and regenerating modes are given in the...
This paper proposes a simple method direct torque control (DTC) based on space vector pulse width modulation (SVPWM) of surface-mounted permanent-magnet synchronous motors (SPMSM). The proposed DTC method calculates the optimized voltage vector using the motor parameters and the analysis of the relationship between the stator flux, torque, and stator voltage to calculate the optimized voltage vector...
Present work shows the merits of space vector modulation direct torque control (SVPWM DTC) over the conventional direct torque control (conventional DTC). SVPWM DTC technique is helpful in solving the basic issues of torque ripple and variable switching frequency present in the conventional DTC. Three PI controllers one each for speed, torque and flux feedback loops is used in SVPWM DTC based IM drive...
This paper presents the work in continuation with part-I. Present work deals with the basic issues associated with the direct torque control (DTC) of induction motor drive. The work is focused to reduce the electromagnetic torque ripple using the concept of multirate sampling. DTC based induction motor drive is simulated using space vector modulation incorporating the multirate sampling. It is also...
To solve the problems of torque ripple and inconstant switch frequency of inverter in the conventional direct torque control (DTC) for permanent magnet synchronous motor (PMSM) drive, a novel DTC method using space vector pulse width modulation (SVM) is proposed based on analysis of PMSM mathematical model. In this novel DTC system of PMSM , traditional torque hysteresis controller and flux hysteresis...
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