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Direct torque control (DTC) can produce quick and robust response, but it has the problems of large torque ripples and inconstant inverter switching frequency. This paper introduces a modified direct torque control based on the space vector modulation (SVM) for interior permanent magnet synchronous motor (IPMSM) drive. Two PI controllers regulate the flux and torque, respectively, and the inverter...
Although Space Vector Modulation (SVM) method is a useful strategy in control of an induction motor, but with an unchangeable sampling time it fails to control the stator currents ripple and consequently the torque pulsation. Hence a hybrid strategy for current control of an induction motor, fed from a matrix converter is proposed in this paper. This strategy is basically a combination of SVM method...
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