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Interplane cross-saturation in multiphase machines

Jecmenica, M, Brkovic, B, Levi, E and Lazarevic, Z (2019) Interplane cross-saturation in multiphase machines. IET Electric Power Applications. ISSN 1751-8679

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Abstract

The use of electrical machines in electric vehicles and high-power drives frequently requires multiphase machines and multiphase inverters. While appropriate mathematical models under the linear magnetic conditions are readily available for multiphase machines, the same cannot be said for the models of the saturated multiphase machines. This paper examines the saturation in an asymmetrical six-phase induction machine under different supply conditions and addresses the applicability of the existing saturated three-phase machine models for representation of saturated multiphase machines. Specifically, the mutual coupling between different sequence planes in the vector space decomposed model under saturated conditions is analyzed. The paper relies on analytical considerations, finite element analysis and experimental results. It is shown that the saturation of the main flux path is influenced by the current components in the orthogonal (non-fundamental) sequence plane. This implies the need to develop new multiphase machine models which take this effect into account.

Item Type: Article
Additional Information: This paper is a postprint of a paper submitted to and accepted for publication in IET Electric Power Applications and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at the IET Digital Library.
Uncontrolled Keywords: 0906 Electrical and Electronic Engineering
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering
Divisions: Electronics and Electrical Engineering
Publisher: Institution of Engineering and Technology
Date Deposited: 26 Mar 2019 12:07
Last Modified: 26 Mar 2019 12:13
DOI or Identification number: 10.1049/iet-epa.2018.5546
URI: http://researchonline.ljmu.ac.uk/id/eprint/9940

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