Measurement and modeling of core losses of soft magnetic composites under 3-D magnetic excitations in rotating motors

Author

Guo, Youguang ; Zhu, Jian Guo ; Lin, Zhi Wei ; Zhong, Jin Jiang

Author_Institution

Fac. of Eng., Univ. of Technol., Sydney, NSW, Australia

Volume

41

Issue

10

fYear

2005

Firstpage

3925

Lastpage

3927

Abstract

Soft magnetic composite (SMC) materials are especially suitable for construction of low-cost high-performance motors with three-dimensional (3-D) magnetic fields. The 3-D finite-element analysis (FEA) conducted in the design of a claw pole transverse flux motor (CPTFM) with an SMC core reveals very complicated B (flux density) loci in the core when the motor rotates. In order to understand and account for the effects of the patterns of B loci on motor parameters and performance such as core losses, a 3-D magnetic property testing system was built for magnetic measurement on a cubic SMC sample. 3-D rotational core loss models in SMC materials and rotating motors are developed.

Keywords

eddy current losses; electric motors; finite element analysis; magnetic cores; magnetic fields; magnetic flux; magnetic leakage; soft magnetic materials; 3D magnetic fields; 3D rotational core loss models; CPTFM; SMC core; claw pole transverse flux motor; core losses; finite-element analysis; flux density; magnetic excitations; magnetic measurement; magnetic property testing system; motor parameters; rotating motors; soft magnetic composites; Building materials; Core loss; Loss measurement; Magnetic cores; Magnetic field measurement; Magnetic flux; Magnetic materials; Rotation measurement; Sliding mode control; Soft magnetic materials; 3-D magnetic measurement; 3-D rotational core loss; Claw pole transverse flux motor; soft magnetic composite;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.854971

Filename

1519490