Title :
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
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.854971
