Analysis of torque in permanent magnet synchronous motors with fractional slot windings

Author

Güemes, J.A. ; Iraolagoitia, A.M. ; Donsión, M.P. ; Del Hoyo, J.I.

Author_Institution

Electr. Eng. Dept., Univ. of Basque Country, Bilbao

fYear

2008

fDate

6-9 Sept. 2008

Firstpage

1

Lastpage

4

Abstract

The influence of various types of windings on the cogging torque and the total torque developed by a three-phase permanent magnet synchronous motor (PMSM) is investigated. The number of poles and rotor geometry are fixed and the stator slot number is modified. The finite element technique is used for the computation of the machine characteristic. The torque is determined by means of the Maxwell stress method. It is shown that the optimizing the cogging torque to a low value is therefore not sufficient to obtain a low torque ripple.

Keywords

finite element analysis; permanent magnet motors; rotors; stators; synchronous motors; torque; Maxwell stress method; cogging torque; finite element technique; fractional slot windings; permanent magnet synchronous motors; stator slot number; three-phase motor; Forging; Geometry; Machine windings; Magnetic analysis; Magnetic flux; Permanent magnet motors; Rotors; Stators; Synchronous motors; Torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines, 2008. ICEM 2008. 18th International Conference on

Conference_Location

Vilamoura

Print_ISBN

978-1-4244-1735-3

Electronic_ISBN

978-1-4244-1736-0

Type

conf

DOI

10.1109/ICELMACH.2008.4799944

Filename

4799944