An improved method for predicting magnetic power losses in SMC electrical machines

Issue title: Special Volume: Proceedings of the eleventh International Symposium on Applied Electromagnetics and Mechanics ISEM-Versailles ISEM 03

Article type: Research Article

Authors: Guo, Y.G.^{a; *} | Zhu, J.G.^a | Zhong, J.J.^a | Watterson, P.A.^a | Wu, W.^b

Affiliations: [a] Faculty of Engineering, University of Technology, Sydney, P.O. Box 123, Broadway, NSW 2007, Australia | [b] CSIRO Telecommunications and Industrial Physics, P.O. Box 218, Lindfield, NSW 2070, Australia

Correspondence: [*] Corresponding author. Tel.: +61 2 9514 7903; Fax: +61 2 9514 2435; E-mail: [email protected]

Abstract: This paper presents an improved method for predicting magnetic power losses in electrical machines with soft magnetic composite (SMC) cores. Different formulations are used for magnetic power loss prediction with purely alternating, purely circular rotating, and elliptically rotating flux density vectors, respectively. A series of three-dimensional (3D) finite element analyses is conducted to determine the flux density locus in each element in a claw pole permanent magnet SMC electrical machine when the rotor rotates. The predicted results are compared with the experimental data of the prototype.

Keywords: magnetic power loss, SMC, electrical machine, finite element analysis

DOI: 10.3233/JAE-2004-539

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 19, no. 1-4, pp. 75-78, 2004