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An investigation of a modified direct torque control strategy for flux and torque ripple reduction for induction machine drive system with fixed switching frequency

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4 Author(s)
Tang, L. ; Sch. of Elec. Eng. & Tele, New South Wales Univ., Sydney, NSW, Australia ; Zhong, L. ; Rahman, M.F. ; Hu, Y.

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.

Published in:

Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the  (Volume:2 )

Date of Conference:

13-18 Oct. 2002