Comparative study of permanent-magnet synchronous machines with concentrated windings for railway application

Author

Soualmi, A. ; Dubas, F. ; Randria, A. ; Espanet, C.

Author_Institution

Alstom Transp. Ornans, Ornans, France

fYear

2011

fDate

20-23 Aug. 2011

Firstpage

1

Lastpage

5

Abstract

The paper presents a comparative study of 3-phase permanent-magnet (PM) synchronous machines (PMSM) with concentrated windings. The purpose of this study is to find a machine giving the better electromagnetic performance (torque, losses, back electromotive force...) for railway traction. Three PMSM with concentrated windings having identical output power, stator and rotor outer diameter, air-gap, axial length,..., are designed. Two machines have equal tooth widths, with one having a coil wound on every tooth and the other having a coil wound on alternate teeth, while the third machine has also coils wound on alternate teeth but these are wider than the unwound teeth. A comparison of the performances for single layer and double layer concentrated windings is made using finite element analysis.

Keywords

finite element analysis; permanent magnet machines; railways; synchronous machines; traction; FEA; air-gap; alternate teeth; axial length; back electromotive force; coil wound; double layer concentrated windings; electromagnetic performance; finite element analysis; permanent-magnet synchronous machines; railway traction; rotor outer diameter; single layer concentrated windings; stator diameter; tooth widths; Coils; Forging; Harmonic analysis; Permanent magnets; Rail transportation; Torque; Windings; back EMF; cogging torque; concentrated winding; double layer; permanent magnet; single layer;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2011 International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4577-1044-5

Type

conf

DOI

10.1109/ICEMS.2011.6073614

Filename

6073614