SVPWM Strategy of Matrix Converter Fed Asymmetrical Six-phase Induction Motor with Common-mode Voltage Elimination and Unity Power-factor Operation

Paul, S and Basu, K (2020) SVPWM Strategy of Matrix Converter Fed Asymmetrical Six-phase Induction Motor with Common-mode Voltage Elimination and Unity Power-factor Operation. In: ECCE 2020 - IEEE Energy Conversion Congress and Exposition, 11-15 October 2020, Virtual, Detroit, pp. 4151-4157.

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Abstract

Asymmetrical six-phase induction machine (ASIM) with six balanced phases and two isolated neutral points require modulation in two orthogonal two-dimensional subspaces where one of them is associated with electromechanical energy transfer. Excitation of non-energy transferring subspace causes copper loss. Therefore, this paper proposes a novel space-vector based PWM strategy (SVPWM) of matrix converter (MC) fed ASIM where excitation in non-energy transferring plane is kept as zero and energy transferring plane is excited so as to generate ripple- free torque. Eighteen switching states of 3f - 6f MC are used for this purpose which have zero common-mode voltage. Theoretical analysis shows that the input power-factor for this technique is same as the load power-factor. Finally, a new PWM strategy is proposed to operate the MC at unity power-factor at input. The proposed techniques are verified through simulations in Matlab and experiments on 3 kW hardware prototype. © 2020 IEEE.

Item Type:	Conference Paper
Publication:	ECCE 2020 - IEEE Energy Conversion Congress and Exposition
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Electric power factor; Energy conversion; Energy transfer; Induction motors; MATLAB; Matrix converters; Vector spaces; Vectors, Common mode voltage; Common mode voltage elimination; Electromechanical energy; Hardware prototype; Input power factor; Six-phase induction machines; Two-dimensional subspaces; Unity power factor, Pulse width modulation
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	11 Feb 2023 04:31
Last Modified:	11 Feb 2023 04:31
URI:	https://eprints.iisc.ac.in/id/eprint/80189

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