Title :
Direct Torque Control with variable duty-cycle in induction motor drives using 3-level inverters
Author :
Brando, G. ; Del Pizzo, A. ; Nocerino, S. ; Rizzo, R.
Author_Institution :
Dept. of Electr. Eng., Naples Univ., Italy
Abstract :
The paper deals with Direct Torque Control of high-power induction motor drives using a 3-level inverter. In order to overcome the problem of flux magnitude and torque oscillations, an optimized algorithm is proposed. The sampling time is subdivided in some elementary parts, where different voltage vectors are applied. These are evaluated by means of a simplified mathematical model in order to keep flux and torque within assigned hysteresis bands.
Keywords :
induction motor drives; invertors; machine control; torque control; 3-level inverters; direct torque control; flux magnitude; hysteresis band; induction motor drives; optimized algorithm; sampling time; torque oscillations; voltage vectors; Hysteresis motors; Induction motor drives; Induction motors; Inverters; Mathematical model; Rotors; Sampling methods; Stators; Torque control; Voltage;
Conference_Titel :
Industrial Electronics Society, 2003. IECON '03. The 29th Annual Conference of the IEEE
Print_ISBN :
0-7803-7906-3
DOI :
10.1109/IECON.2003.1279997
