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Two-level refined direct optimization scheme using intermediate surrogate models for electromagnetic optimization of a switched reluctance motor | Engineering with Computers Skip to main content
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Two-level refined direct optimization scheme using intermediate surrogate models for electromagnetic optimization of a switched reluctance motor

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Abstract

Electromagnetic optimization procedures require a large number of evaluations in numerical forward models. These computer models simulate complex problems through the use of numerical techniques, e.g. finite elements. Hence, the evaluations need a large computational time. Two-level methods such as space mapping have been developed that include a second model so as to accelerate the inverse procedures. Contrary to existing two-level methods, we propose a scheme that enables acceleration when the second model is based on the initial numerical model with coarse discretizations. This paper validates the proposed refined direct optimization method onto algebraic test functions. Moreover, we applied the methodology onto the geometrical optimization of the magnetic circuit of a switched reluctance motor. The obtained numerical results show the efficiency of the optimization algorithm with respect to the computational time and the accuracy.

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Acknowledgments

This work was supported by the GOA project GOA07/GOA/006 and the IAP project IAP-P6/21. Ivo Couckuyt is funded by the Institute for the Promotion of Innovation through Science and Technology in Flanders (IWT-Vlaanderen). Guillaume Crevecoeur is a postdoctoral researcher of the FWO.

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Authors and Affiliations

  1. Department of Electrical Energy, Systems and Automation, Ghent University, Sint-Pietersnieuwstraat 41, 9000, Ghent, Belgium

    Guillaume Crevecoeur, Ahmed Abou-Elyazied Abdallh & Luc Dupré

  2. Department of Information Technology (INTEC), Ghent University-IBBT, Sint-Pietersnieuwstraat 41, 9000, Ghent, Belgium

    Ivo Couckuyt & Tom Dhaene

Authors
  1. Guillaume Crevecoeur
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  2. Ahmed Abou-Elyazied Abdallh
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  3. Ivo Couckuyt
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  4. Luc Dupré
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  5. Tom Dhaene
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Correspondence to Guillaume Crevecoeur.

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Crevecoeur, G., Abdallh, A.AE., Couckuyt, I. et al. Two-level refined direct optimization scheme using intermediate surrogate models for electromagnetic optimization of a switched reluctance motor. Engineering with Computers 28, 199–207 (2012). https://doi.org/10.1007/s00366-011-0239-5

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