ISSN: 0332-1649
Online from: 1982
Subject Area: Electrical & Electronic Engineering
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| Title: | Losses and efficiency in alternate switched-flux permanent magnet machines |
|---|---|
| Author(s): | J.T. Chen, (Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield, UK), Z.Q. Zhu, (Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield, UK) |
| Citation: | J.T. Chen, Z.Q. Zhu, (2012) "Losses and efficiency in alternate switched-flux permanent magnet machines", COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, Vol. 31 Iss: 1, pp.54 - 70 |
| Keywords: | Efficiency, Electromagnetism, Flux-switching, Iron loss, Magnet loss, Permanent magnet, Switched flux, Torque |
| Article type: | Research paper |
| DOI: | 10.1108/03321641211184823 (Permanent URL) |
| Publisher: | Emerald Group Publishing Limited |
| Abstract: | Purpose – The purpose of this paper is to compare the performance of conventional, novel E- and C-core switched-flux permanent magnet (SFPM) machines having different combinations of stator and rotor pole numbers, with particular reference to the conductor and magnet eddy current loss and iron loss. Design/methodology/approach – The electromagnetic performance of the analysed machines is compared using the finite element (FE) analysis. Findings – Both iron and conductor eddy current losses increase with the rotor pole number, while the 11- and 13-rotor pole machine always exhibit lower magnet eddy current loss than those of the 10- and 14-rotor pole machines, respectively. The E- and C-core machines use half the number and volume of magnets and also exhibit higher efficiency than those of the conventional SFPM machine. Originality/value – Investigation of the influence of stator and rotor pole combinations on the performances of conventional, novel E- and C-core SFPM machines, include losses and efficiency. |
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