Embedded finite-element solver for computation of brushless permanent-magnet motors

Miller, T.J.E., Popescu, M., Cossar, C., McGilp, M.I., Olaru, M., Davies, A., Sturgess, J. and Sitzia, A. (2008) Embedded finite-element solver for computation of brushless permanent-magnet motors. IEEE Transactions on Industry Applications, 44(4), pp. 1124-1133. (doi: 10.1109/TIA.2008.926199)

Abstract

This paper describes the theory underlying the formulation of a “minimum set” of finite-element solutions to be used in the design and analysis of saturated brushless permanent-magnet motors. The choice of finite-element solutions is described in terms of key points on the flux–MMF diagram. When the diagram has a regular shape, a huge reduction in finite-element analysis is possible with no loss of accuracy. If the loop is irregular, many more solutions are needed. This paper describes an efficient technique in which a finite-element solver is associated with a classical $d$– $q$-axis circuit model in such a way that the number of finite-element solutions in one electrical half-cycle can be varied between 1 and 360. The finite-element process is used to determine not only the average torque but also the saturated inductances as the rotor rotates.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Popescu, Dr Mircea and Cossar, Mr Calum and Miller, Prof Timothy and McGilp, Mr Malcolm
• Authors: Miller, T.J.E., Popescu, M., Cossar, C., McGilp, M.I., Olaru, M., Davies, A., Sturgess, J., and Sitzia, A.
• Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: IEEE Transactions on Industry Applications
• Publisher: Institute of Electrical and Electronics Engineers
• ISSN: 0093-9994
• Copyright Holders: Copyright © 2008 Institute of Electrical and Electronics Engineers
• First Published: First published in IEEE Transactions on Industry Applications 44(4):1210-1217
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher