Open AccessMagnetic equivalent circuit modelling of ring winding axial flux machine
Author(s) -
Ojaghlu Pourya,
Vahedi Abolfazl,
Totoonchian Farid
Publication year - 2018
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
ISSN - 1751-8679
DOI - 10.1049/iet-epa.2017.0517
Subject(s) - finite element method , stator , magnet , magnetic circuit , magnetic flux , magnetic flux leakage , rotor (electric) , magnetic reluctance , engineering , mechanical engineering , topology (electrical circuits) , magnetic field , structural engineering , electrical engineering , physics , quantum mechanics
This study presents magnetic equivalent circuit (MEC) model of ring winding axial flux machine (AFM). The ring winding AFM is a new permanent magnet topology that presents many advantages like reliability, simple construction, low cost and ease of increasing pole and phase numbers. For optimal design of this new type of machine, a fast and accurate performance analysis tool is needed. In this regard, MEC model of the ring winding AFM is proposed. It is shown that the developed MEC model of the ring winding AFM provides very fast solution, yet accurate results compared with three‐dimensional finite‐element model (3D FEM). The proposed MEC model considers 3D geometry, magnetic saturation, leakage fluxes and rotor position. Furthermore, this study provides equations to consider fringing flux between arc segmented surface mounted permanent magnets and stator teeth. Experimental and 3D FEM results are employed to show the validity of the proposed MEC model.