Computationally efficient skew effect calculation in electric machines utilising harmonic Maxwellian stress decomposition

Spargo, C.M.; Mecrow, B.C.; Widmer, J.D.

doi:10.1109/icelmach.2014.6960310

Computationally efficient skew effect calculation in electric machines utilising harmonic Maxwellian stress decomposition

Spargo, C.M.; Mecrow, B.C.; Widmer, J.D.

Authors

Dr Christopher Donaghy Spargo christopher.spargo@durham.ac.uk
Academic Visitor

B.C. Mecrow

J.D. Widmer

Abstract

A novel finite element solution post-processing technique to determine the effects of rotor skewing is presented in this paper. It was previously proposed that a post-processing semi-numerical method to calculate the harmonic torque components in synchronous machines is useful to machine designers. Harmonic Maxwellian stress components create parasitic effects during machine operation such as torque ripple, which is extremely undesirable in many applications and is a major cause of acoustic noise and vibration which can limit the machine's application. Rotor skewing usually allows reduction of this torque ripple and this paper expands previous work to include a good approximation of skewing effects using a single 2D time stepping Finite Element (FE) study with the developed post-processing method. The method reduces computation time for skew effect calculation where a large 3D FE simulation would usually be required.

Citation

Spargo, C., Mecrow, B., & Widmer, J. (2014). Computationally efficient skew effect calculation in electric machines utilising harmonic Maxwellian stress decomposition. In Proceedings, 2014 International Conference on Electrical Machines (ICEM) : Andel's Hotel Berlin, Berlin, Germany, 02 - 05 September, 2014 (1044-1049). https://doi.org/10.1109/icelmach.2014.6960310

Conference Name	2014 International Conference on Electrical Machines (ICEM)
Conference Location	Berlin, Germany
Start Date	Sep 2, 2014
End Date	Sep 5, 2014
Publication Date	Sep 5, 2014
Deposit Date	Jan 21, 2016
Publicly Available Date	Apr 26, 2016
Publisher	Institute of Electrical and Electronics Engineers
Pages	1044-1049
Book Title	Proceedings, 2014 International Conference on Electrical Machines (ICEM) : Andel's Hotel Berlin, Berlin, Germany, 02 - 05 September, 2014.
DOI	https://doi.org/10.1109/icelmach.2014.6960310
Public URL	https://durham-repository.worktribe.com/output/1152605
Additional Information	Conference date: 2-5 September 2014

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