High-speed functionality optimization of five-phase PM machine using third harmonic current
ISSN: 0332-1649
Article publication date: 29 April 2014
Abstract
Purpose
The purpose of this paper is to apply some surrogate-assisted optimization techniques in order to improve the performances of a five-phase permanent magnet machine in the context of a complex model requiring computation time.
Design/methodology/approach
An optimal control of four independent currents is proposed in order to minimize the total losses with the respect of functioning constraints. Moreover, some geometrical parameters are added to the optimization process allowing a co-design between control and dimensioning.
Findings
The optimization results prove the remarkable effect of using the freedom degree offered by a five-phase structure on iron and magnets losses. The performances of the five-phase machine with concentrated windings are notably improved at high speed (16,000 rpm).
Originality/value
The effectiveness of the method allows solving the challenge which consists in taking into account inside the control strategy the eddy-current losses in magnets and iron. In fact, magnet losses are a critical point to protect the machine from demagnetization in flux-weakening region.
Keywords
Acknowledgements
This project was supported by the Laboratory of Electrical Engineering and Power Electronics (L2EP), France. It is a successive cooperation project between the control team and optimization team of the laboratory.
Citation
Gong, J., Aslan, B., Gillon, F. and Semail, E. (2014), "High-speed functionality optimization of five-phase PM machine using third harmonic current", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 33 No. 3, pp. 879-893. https://doi.org/10.1108/COMPEL-10-2012-0220
Publisher
:Emerald Group Publishing Limited
Copyright © 2014, Emerald Group Publishing Limited