Title :
An investigation of a modified direct torque control strategy for flux and torque ripple reduction for induction machine drive system with fixed switching frequency
Author :
Tang, L. ; Zhong, L. ; Rahman, M.F. ; Hu, Y.
Author_Institution :
Sch. of Elec. Eng. & Tele, New South Wales Univ., Sydney, NSW, Australia
Abstract :
A novel direct torque control (DTC) control scheme for induction motor drives is proposed in this paper, which features low torque ripple, low flux ripple and almost fixed switching frequency. Simulation and preliminary experiment comparisons show the flux and torque ripples are greatly reduced if compared with the basic DTC scheme, while the switching frequency is fixed, all the advantages of the basic DTC are still retained with the new scheme.
Keywords :
DC-AC power convertors; control system analysis; control system synthesis; induction motor drives; invertors; machine theory; machine vector control; switching circuits; torque control; control design; control simulation; fixed switching frequency; flux ripple reduction; induction motor drive system; modified direct torque control strategy; torque ripple reduction; Couplings; Induction machines; Inverters; Sampling methods; Sensor systems; Stators; Support vector machines; Switching frequency; Torque control; Voltage;
Conference_Titel :
Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the
Conference_Location :
Pittsburgh, PA, USA
Print_ISBN :
0-7803-7420-7
DOI :
10.1109/IAS.2002.1042656
