Modelling of surface PM machine using soft magnetic composites and a bonded magnet ring

Author

Tang, Chun ; Soong, Wen L. ; Liew, Gene S. ; Ertugrul, Nesimi

Author_Institution

Univ. of Adelaide, Adelaide, SA, Australia

fYear

2012

fDate

2-5 Sept. 2012

Firstpage

364

Lastpage

371

Abstract

This paper examines the modelling of a 1.6 kW, 3,000 rpm surface permanent magnet machine which was constructed using soft magnetic composites (SMC) stator tooth segments and a bonded rare-earth magnet ring. It was designed for high torque density and efficiency, and low cogging torque. Both 2D and 3D finite-element model results are provided and compared to the experimental measurements of the flux densities, back-EMF, cogging torque, inductance and power losses. Challenges were found in modelling the magnetization of the bonded-ring magnet. The rated efficiency and field-weakening performance are examined by using both measured and finite-element calculated parameters.

Keywords

finite element analysis; magnetisation; permanent magnet machines; soft magnetic materials; stators; torque; 2D finite element model; 3D finite element model; SMC; bonded rare earth magnet ring; cogging torque; magnetization; power 1.6 kW; soft magnetic composite; stator tooth segment; surface PM machine modelling; surface permanent magnet machine; torque density; Atmospheric modeling; Iron; Magnetic flux; Rotors; Saturation magnetization; Stator windings; Permanent magnet machines; bonded magnets; finite-element analysis; segmented stators; soft magnetic composites;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2012 XXth International Conference on

Conference_Location

Marseille

Print_ISBN

978-1-4673-0143-5

Electronic_ISBN

978-1-4673-0141-1

Type

conf

DOI

10.1109/ICElMach.2012.6349892

Filename

6349892