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Current Control Methods for an Asymmetrical Six-Phase Induction Motor Drive

Che, HS, Levi, E, Jones, M, Hew, W-P and Abd Rahim, N (2014) Current Control Methods for an Asymmetrical Six-Phase Induction Motor Drive. IEEE TRANSACTIONS ON POWER ELECTRONICS, 29 (1). pp. 407-417. ISSN 0885-8993


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Using the vector space decomposition approach, the currents in a multiphase machine with distributed winding can be decoupled into the flux and torque producing α-β components, and the loss-producing x-y and zero-sequence components. While the control of α-β currents is crucial for flux and torque regulation, control of x-y currents is important for machine/converter asymmetry and dead-time effect compensation. In this paper, an attempt is made to provide a physically meaningful insight into current control of a six-phase machine, by showing that the fictitious x-y currents can be physically interpreted as the circulating currents between the two three-phase windings. Using this interpretation, the characteristics of x-y currents due to the machine/converter asymmetry can be analyzed. The use of different types of x-y current controllers for asymmetry compensation and suppression of dead-time-induced harmonics is then discussed. Experimental results are provided throughout the paper, to underpin the theoretical considerations, using tests on a prototype asymmetrical six-phase induction machine. © 1986-2012 IEEE.

Item Type: Article
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering
Divisions: Electronics & Electrical Engineering (merged with Engineering 10 Aug 20)
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Date Deposited: 13 Aug 2014 14:03
Last Modified: 04 Sep 2021 14:49
URI: https://researchonline.ljmu.ac.uk/id/eprint/114
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