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Mixing of FEM and Analytical Modeling: Preliminary Design of a Transformer

In: Optimization and Inverse Problems in Electromagnetism

Author

Listed:
  • Benoit Delinchant

    ((INPG/UJF — CNRS — UMR 5529), ENSIEG, Laboratoire d’Electrotechnique de Grenoble)

  • Frédéric Wurtz

    ((INPG/UJF — CNRS — UMR 5529), ENSIEG, Laboratoire d’Electrotechnique de Grenoble)

  • Jaime Fandino

    ((INPG/UJF — CNRS — UMR 5529), ENSIEG, Laboratoire d’Electrotechnique de Grenoble)

Abstract

We are interested in this paper in methodologies of preliminary design. We applied our study on the optimization of a three-phase transformer. Preliminary design requires low time cost. Although analytical models answer this issue, they brought some loss of quality, as they are subject to many hypotheses. Analytical model can be mixed with numerical ones to improve the modeling quality. The originality of this paper is that we used different modeling methods and software to perform a better design. In this paper, we compared transformer optimizations with 5 different specifications sheets, using two models. On the one hand, a pure analytical model was used, with an automatic symbolic differentiation. On the other hand, we have introduced a FEM evaluation of the leakage reactance in the analytical model. This second model has been implemented using software links and numerical differentiation, which are also discussed.

Suggested Citation

  • Benoit Delinchant & Frédéric Wurtz & Jaime Fandino, 2003. "Mixing of FEM and Analytical Modeling: Preliminary Design of a Transformer," Springer Books, in: Marek Rudnicki & Sławomir Wiak (ed.), Optimization and Inverse Problems in Electromagnetism, pages 245-252, Springer.
    • Handle: RePEc:spr:sprchp:978-94-017-2494-4_24
    DOI: 10.1007/978-94-017-2494-4_24
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