Comparison of three space mapping techniques on electromagnetic design optimization
ISSN: 0332-1649
Article publication date: 5 March 2018
Abstract
Purpose
This paper aims to investigate three low-evaluation-budget optimization techniques: output space mapping (OSM), manifold mapping (MM) and Kriging-OSM. Kriging-OSM is an original approach having high-order mapping.
Design/methodology/approach
The electromagnetic device to be optimally sized is a five-phase linear induction motor, represented through two levels of modeling: coarse (Kriging model) and fine.The optimization comparison of the three techniques on the five-phase linear induction motor is discussed.
Findings
The optimization results show that the OSM takes more time and iteration to converge the optimal solution compared to MM and Kriging-OSM. This is mainly because of the poor quality of the initial Kriging model. In the case of a high-quality coarse model, the OSM technique would show its domination over the other two techniques. In the case of poor quality of coarse model, MM and Kriging-OSM techniques are more efficient to converge to the accurate optimum.
Originality/value
Kriging-OSM is an original approach having high-order mapping. An advantage of this new technique consists in its capability of providing a sufficiently accurate model for each objective and constraint function and makes the coarse model converge toward the fine model more effectively.
Keywords
Acknowledgements
The work has been supported by National Natural Science Foundation of China (NSFC) under grant #51307099. It is also a successful cooperation project between Shandong University and L2EP laboratory of France.
Citation
Gong, J., Gillon, F. and Bracikowski, N. (2018), "Comparison of three space mapping techniques on electromagnetic design optimization", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 37 No. 2, pp. 565-580. https://doi.org/10.1108/COMPEL-11-2016-0512
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited