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Unbalanced Magnetic Forces in Rotational Unsymmetrical Transverse Flux Machine
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 Title & Authors
Unbalanced Magnetic Forces in Rotational Unsymmetrical Transverse Flux Machine
Baserrah, Salwa; Rixen, Keno; Orlik, Bernd;
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 Abstract
The torque and unbalanced magnetic forces in permanent magnet machines are resultants of the tangential, axial and normal magnetic forces, respectively. Those are in general influenced by pole-teeth-winding configuration. A study of the torque and unbalanced magnetic forces of a small flux concentrating permanent magnet transverse flux machine (FCPM-TFM) in segmented compact structure is presented in this paper. By using FLUX3D software from Cedrat, Maxwell stress tensor has been solved. Finite element (FE-) magneto static study followed by transient analysis has been conducted to investigate the influence of unsymmetrical winding pattern, in respect to the rotor, on the performance of the FCPM-TFM. Calculating the magnetic field components in the air gap has required an introduction of a 2D grid in the middle of the air gap, whereby good estimations of the forces are obtained. In this machine, the axial magnetic forces reveal relatively higher amplitudes compared to the normal forces. Practical results of a prototype motor are demonstrated through the analysis.
 Keywords
Unbalanced force;Normal component;Axial force;Distributed winding;Tangential force;Transverse flux;TFM;Permanent magnet;
 Language
English
 Cited by
1.
Influence of Concentric Saddle Shaped Coils on the Behavior of a Permanent Magnet Transverse Flux Machine with Segmented Construction,;;;

Journal of Magnetics, 2012. vol.17. 2, pp.100-108 crossref(new window)
1.
Influence of Concentric Saddle Shaped Coils on the Behavior of a Permanent Magnet Transverse Flux Machine with Segmented Construction, Journal of Magnetics, 2012, 17, 2, 100  crossref(new windwow)
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