Performance of Novel Permanent Magnet Synchronous Machines Made of Soft Magnetic Composite Core

Author

Ishikawa, T. ; Sato, Y. ; Kurita, N.

Author_Institution

Div. of Electron. & Inf., Gunma Univ., Kiryu, Japan

Volume

50

Issue

11

fYear

2014

fDate

Nov. 2014

Firstpage

1

Lastpage

4

Abstract

This paper presents the development of novel permanent magnet synchronous motors made of a soft magnetic composite (SMC) material. They have 3-D magnetic flux but also hollow stator teeth, which can give a reduction of copper losses and motor volume. It is clarified that the efficiency can be improved by using the SMC core instead of the conventional laminated core, and by introducing a hollowed out section for the winding, namely, an overhang at the tip of the teeth. In addition, the part of the core which has high iron loss is clarified by the 3-D finite element analysis.

Keywords

composite materials; finite element analysis; magnetic cores; magnetic flux; permanent magnet machines; soft magnetic materials; stators; synchronous machines; 3D finite element analysis; 3D magnetic flux; Machines winding; SMC; copper loss reduction; hollow stator teeth; iron loss; motor volume reduction; permanent magnet synchronous machine; soft magnetic composite core; Iron; Loss measurement; Magnetic cores; Rotors; Soft magnetic materials; Stator cores; 3-D finite element; brushless dc motor; efficiency; loss; soft magnetic composite (SMC) core;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2334706

Filename

6971590