Transient force calculations on a permanent magnet powder metallurgical cored machine

Author

Gair, S. ; Yang, S.J.

Author_Institution

Dept. of Electr. & Electron. Eng., Napier Polytech. of Edinburgh, UK

Volume

26

Issue

2

fYear

1990

fDate

3/1/1990 12:00:00 AM

Firstpage

1054

Lastpage

1057

Abstract

An alternative approach to the finite-element time-stepping procedure for transient force calculation is presented, in which the airgap field, force and power distribution are accurately obtained by acomputed tomography technique. Results are presented showing the true three-dimensional (3-D) variation of the axis components of the field, the derivative 3-D distribution of the Maxwell stress tensors, and the Poynting power flow conditions in the airgap of an electrical machine. The axial field machine used in the study uses powder core material instead of the conventional laminated steel

Keywords

electromagnetic fields; machine theory; permanent magnet motors; powder cores; powder metallurgy; small electric machines; 3D distribution; Maxwell stress tensors; Poynting power flow conditions; airgap field distribution; axial field machine; axis components; computed tomography; force distribution; permanent magnet powder metallurgical cored machine; power distribution; transient force calculation; Costs; Load flow; Magnetic cores; Magnetic materials; Manufacturing; Permanent magnets; Powders; Soft magnetic materials; Stress; Tomography;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.106502

Filename

106502