Abstract
The main goal of this paper is to evaluate and compare various control schemes (scalar control vs vector control) in Permanent Magnet Synchronous Motor (PMSM). Mathematical modelling of PMSM was implemented and used for this paper. Under scalar control, the V/f method is studied. Under vector control, Field Oriented Control (FOC), Direct Torque Control (DTC), Direct Torque Control with Space Vector Modulation (DTC-SVM) are extensively studied. By using MATLAB/Simulink, these control algorithms are implemented in a PMSM motor drive. To that end, MATLAB/Simulink simulations were used to examine and compare the control output of Scalar, FOC, and DTC from various perspectives. Further, it is shown that the shortcomings of the classical DTC control technique are resolved by DTC- SVM control to get a satisfactory control with computational demand as the trade-off. This study compares these control schemes based on the parameters of an existing 2.135-kW surface mounted non-salient sinusoidal flux distribution PMSM to find the noteworthy features associated with each control scheme to understand which control method is to be preferred where and for what desired accuracy.
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