Facial reconstruction

Search LJMU Research Online

Browse Repository | Browse E-Theses

Optimal Third-Harmonic Current Injection for Asymmetrical Multiphase PMSMs

Levi, E, Slunjski, M, Cervone, A and Brando, G (2020) Optimal Third-Harmonic Current Injection for Asymmetrical Multiphase PMSMs. IEEE Transactions on Industrial Electronics. ISSN 0278-0046

IEEETIE2020-Andrea.pdf - Accepted Version

Download (2MB) | Preview


The paper proposes a modelling approach and an optimization strategy to exploit a third harmonic current injection for the torque enhancement in multiphase isotropic PMSMs with non-sinusoidal back-EMFs. The modelling approach is based on a proper vector space decomposition and on the associated rotational transformation, aimed to properly select a set of stator current space vectors to be controlled. It is presented for a generic (i.e. asymmetrical, with an arbitrary angular shift) winding configuration. The injection strategy is related to the choice of a constant synchronous current set, aimed at minimizing the average stator winding losses for a given reference torque by using the 1st and the 3rd spatial harmonics of the air-gap flux density. The optimal solution has been found analytically and has been developed in detail for a selected set of asymmetrical winding configurations. Both the numerical and experimental results are in good agreement with the theoretical analysis.

Item Type: Article
Additional Information: © 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, 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 component 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 & Electrical Engineering (merged with Engineering 10 Aug 20)
Publisher: Institute of Electrical and Electronics Engineers
Date Deposited: 12 Mar 2020 11:07
Last Modified: 04 Sep 2021 07:43
DOI or ID number: 10.1109/TIE.2020.2982099
URI: https://researchonline.ljmu.ac.uk/id/eprint/12466
View Item View Item