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|
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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