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DTC-SVM Scheme for Induction Motors Fedwith a Three-level Inverter
Abstract:Direct Torque Control is a control technique in AC drive systems to obtain high performance torque control. The conventional DTC drive contains a pair of hysteresis comparators. DTC drives utilizing hysteresis comparators suffer from high torque ripple and variable switching frequency. The most common solution to those problems is to use the space vector depends on the reference torque and flux. In this Paper The space vector modulation technique (SVPWM) is applied to 2 level inverter control in the proposed DTC-based induction motor drive system, thereby dramatically reducing the torque ripple. Then the controller based on space vector modulation is designed to be applied in the control of Induction Motor (IM) with a three-level Inverter. This type of Inverter has several advantages over the standard two-level VSI, such as a greater number of levels in the output voltage waveforms, Lower dV/dt, less harmonic distortion in voltage and current waveforms and lower switching frequencies. This paper proposes a general SVPWM algorithm for three-level based on standard two-level SVPWM. The proposed scheme is described clearly and simulation results are reported to demonstrate its effectiveness. The entire control scheme is implemented with Matlab/Simulink.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1073010Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 3951
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 Xavier Del Toro Garcia, Antoni Arias, Marcel G. Jayne, Phil A. Witting, Vicenc M. Sala, Jose Luis Romeral "New DTC Control Scheme for Induction Motors fed with a Three Level Inverter" AUTOMATIKA 46(2005) 1-2, 73-81, ISSN 0005-1144.
 A. Iqbal, A. Lamine, I. Ashraf, Mohibullah "Matlab/Simulink model of space vector pwm for three-phase voltage source inverter"IEEE Tran