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

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4 Author(s)
Youguang Guo ; Fac. of Eng., Univ. of Technol., Sydney, NSW, Australia ; Jian Guo Zhu ; Zhi Wei Lin ; Jin Jiang Zhong

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.

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Magnetics, IEEE Transactions on  (Volume:41 ,  Issue: 10 )