Independent Field-Oriented Control of Two Split-Phase Induction Motors From a Single Six-Phase Inverter

Mohapatra, Krishna Keshaba and Kanchan, RS and Baiju, MR and Tekwani, PN and Gopakumar, K (2005) Independent Field-Oriented Control of Two Split-Phase Induction Motors From a Single Six-Phase Inverter. In: IEEE Transactions On Industrial Electronics, 52 (5). pp. 1372-1382.

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Abstract

Split-phase (six-phase) induction motor stator windings consist of two sets of three phase windings, which are spatially phase separated by 30 electrical degrees. Due to mutual cancellation of the air gap flux for all the 6n +/- 1 (n = 1, 3, 5....) order harmonic voltages, called zero sequence components, large harmonic currents are generated in the stator phases. Only the 12n +/- 1 (n = 0, 1, 2, 3....)-order harmonic voltage components contribute toward the air gap flux and electromagnetic torque production in the machine. In this paper, a novel scheme is proposed where two six-phase induction motors are connected in series with proper phase sequence so that the zero sequence component voltages of one machine act as torque and flux producing components for the other. Thus, the two six-phase motors can be independently controlled from a single six-phase inverter. A vector control scheme for the dual motor drive is developed and experimentally verified in this paper.

Item Type:	Journal Article
Publication:	IEEE Transactions On Industrial Electronics
Publisher:	IEEE
Additional Information:	Copyright 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords:	Voltage-Source Inverter;Drive;Multiphase
Department/Centre:	Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Date Deposited:	21 Aug 2009 06:18
Last Modified:	19 Sep 2010 04:55
URI:	http://eprints.iisc.ac.in/id/eprint/17153

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