Title :
Measurement and modelling of core losses of soft magnetic composites under 3D magnetic excitations in rotating motors
Author :
Guo, Y.G. ; Zhu, J.G. ; Zhong, J.I. ; Lin, Z.W.
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 (3D) magnetic fields. The 3D finite element analysis (FEA) conducted in the design of a claw pole transverse flux motor (TFM) 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 3D magnetic property testing system was built for magnetic measurement on a cubic SMC sample. 3D rotational core loss models in SMC materials and rotating motors are developed and verified by the experimental results.
Keywords :
electric motors; finite element analysis; loss measurement; magnetic cores; magnetic fields; magnetic flux; rotors; soft magnetic materials; stators; 3D finite element analysis; 3D magnetic excitations; 3D magnetic property testing system; FEA; claw pole transverse flux motor; core losses measurement; flux density; magnetic fields; magnetic measurement; 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;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1463479
