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Study of Switching Table Based DTC of Asymmetrical Dual 3-Phase Induction Machine

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Manoj K Chaudhury*1, Kali C Pradhan1 Binay K Nayak1 and Chinmay K Nayak1
» doi: 10.48047/ecb/2022.12.10.590

Abstract

Multiphase drives offer pretty conspicuous benefits such as improvement of torque pulsation, reduction of rotor as well as dc-link current harmonics, reduction of phase current without affecting the phase voltage, improvement of reliability and power density. Thus, multiphase drives have been the epicentre of research in power electronics and drives. In this paper, the authors intend to obtain the dynamic d-q modelling of a Dual Three-Phase Induction Machine (DTIM). It delves into modelling of 6 phase SPWM, as well as open loop analysis of a DTIM fed from a SPWM inverter. The control techniques for the asymmetrical six-phase motor are somewhat different from that of its three-phase counterpart. Direct torque control technique is implemented as it is advantageous than the Indirect vector control technique from the perspective of increased cost and computational complexity.

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