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Arbitrary Power Sharing Among Three-Phase Winding Sets of Multiphase Machines

Levi, E and Jones, M and Zoric, I (2017) Arbitrary Power Sharing Among Three-Phase Winding Sets of Multiphase Machines. IEEE Transactions on Industrial Electronics. ISSN 0278-0046

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Abstract

The paper develops a technique for arbitrary power sharing among three-phase winding sets of a multiphase generator. Multiple d-q modelling is commonly used when independent control of the winding sets is required. This work utilises instead the vector space decomposition modelling as the starting point and combines it with multiple d-q approach to preserve the advantages of the vector space decomposition, while still enabling independent control over each winding set. The power sharing is achieved by imposing appropriate x-y currents at the fundamental frequency, so that flux and average torque are not affected. The theory is developed initially for the nine-phase machine. A general expression for arbitrary current sharing is derived further for any multiphase machine with multiple three-phase windings. The obtained equations are valid for any possible machine topology (asymmetrical/ symmetrical, with single or multiple neutral points). The theory is validated experimentally using an asymmetrical nine-phase induction generator with indirect rotor field oriented control.

Item Type: Article
Additional Information: (c) 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
Uncontrolled Keywords: 08 Information And Computing Sciences, 09 Engineering
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering
Divisions: Electronics and Electrical Engineering
Publisher: Institute of Electrical and Electronics Engineers
Date Deposited: 22 Jun 2017 08:15
Last Modified: 07 Sep 2017 06:24
DOI or Identification number: 10.1109/TIE.2017.2733468
URI: http://researchonline.ljmu.ac.uk/id/eprint/6724

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