{
"title": "DTC-SVM Scheme for Induction Motors Fedwith a Three-level Inverter",
"authors": "Ehsan Hassankhan, Davood A. Khaburi",
"country": null,
"institution": null,
"volume": "20",
"journal": "International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering",
"pagesStart": 958,
"pagesEnd": 963,
"ISSN": "1307-6892",
"URL": "http:\/\/waset.org\/publications\/9566",
"abstract": "Direct Torque Control is a control technique in AC\r\ndrive systems to obtain high performance torque control. The\r\nconventional DTC drive contains a pair of hysteresis comparators.\r\nDTC drives utilizing hysteresis comparators suffer from high torque\r\nripple and variable switching frequency. The most common solution\r\nto those problems is to use the space vector depends on the reference\r\ntorque and flux. In this Paper The space vector modulation technique\r\n(SVPWM) is applied to 2 level inverter control in the proposed\r\nDTC-based induction motor drive system, thereby dramatically\r\nreducing the torque ripple. Then the controller based on space vector\r\nmodulation is designed to be applied in the control of Induction\r\nMotor (IM) with a three-level Inverter. This type of Inverter has\r\nseveral advantages over the standard two-level VSI, such as a greater\r\nnumber of levels in the output voltage waveforms, Lower dV\/dt, less\r\nharmonic distortion in voltage and current waveforms and lower\r\nswitching frequencies. This paper proposes a general SVPWM\r\nalgorithm for three-level based on standard two-level SVPWM. The\r\nproposed scheme is described clearly and simulation results are\r\nreported to demonstrate its effectiveness. The entire control scheme is\r\nimplemented with Matlab\/Simulink.",
"references": null,
"publisher": "World Academy of Science, Engineering and Technology",
"index": "International Science Index 20, 2008"
}