Air gap MMF based prediction of eddy current loss in the PMs of concentrated winding brushless machines. Issue 5 (19th August 2014)

• Record Type: Journal Article
• Authors: Masmoudi, Asma; Masmoudi, Ahmed; Sykulski, Jan; Masmoudi, Ahmed
• Is Part Of: Compel. Volume 33:Issue 5(2014)
• Publication Date: 2014-08-19
• Subjects: Electrical engineering -- Data Processing -- Periodicals; Electrical engineering -- Mathematics -- Periodicals; Electrical engineering -- Periodicals; Electronics -- Data Processing -- Periodicals; Electronics -- Mathematics -- Periodicals; 621.3
• DOI: 10.1108/COMPEL-09-2013-0289
• Languages: English
• ISSNs: 0332-1649

Abstract

<abstract> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <sec sec-type="purpose"> <title>Purpose</title> <p>This paper aims at an analytical approach-based prediction of the eddy current loss in the PMs of a concentrated winding machine equipped with 12 slots in the stator and 10 poles in the rotor.</p> </sec> <sec sec-type="design|methodology|approach"> <title>Design/methodology/approach</title> <p>The investigation of the PM eddy current loss has been carried out using an analytical model and a 2D time-stepped transient finite element analysis (FEA).</p> </sec> <sec sec-type="findings"> <title>Findings</title> <p>It has been found, in the case of the treated machine, that just the subharmonic of rank one and the harmonic of rank seven have significant contributions to the eddy current loss in the PMs.</p> </sec> <sec sec-type="research limitations|implications"> <title>Research limitations/implications</title> <p>A shift between the results yielded by the developed analytical model and those computed by FEA has been noticed. This limitation is mainly due to the slotting effect which has been omitted in the analytical model.</p> </sec> <sec sec-type="practical implications"> <title>Practical implications</title> <p>Fractional slot PM machines are currently given an increasing attention in automotive applications. The prediction of their iron loss in an attempt to rethink their design represents a crucial efficiency benefit.</p> </sec> <sec sec-type="originality|value"> <title>Originality/value</title> <p>The analytical prediction of the eddy current loss in each PM then in all PMs and their validation by FEA represent the major contribution of this work.</p> </sec> </abstract>