Simulation of wave propagation effects in machine windings

• Herbert De Gersem ^[1] ; Olaf Henze ^[2] ; Thomas Weiland ^[2] ; Andreas Binder ^[2]
  1. [1] KU Leuven

     KU Leuven

     Arrondissement Leuven, Bélgica

     
  2. [2] Technische Universita¨t Darmstad
• Localización: Compel: International journal for computation and mathematics in electrical and electronic engineering, ISSN 0332-1649, Vol. 29, Nº 1 (Special Issue: Selected papers from EPE‐PEMC 2008), 2010, págs. 23-38
• Idioma: inglés
• Enlaces
  • Texto completo
• Resumen

  • Purpose – The purpose of this paper is to offer a simulation method for predicting the impedance of machine windings at higher frequencies.

    Design/methodology/approach – A transmission‐line model (TLM) is developed based on parameters calculated on the basis of electroquasistatic and magnetoquasistatic finite‐element (FE) model of the winding cross‐section.

    Findings – The FE formulations for the low‐ and high‐frequency limits give acceptable results for the respective frequency ranges. An eddy‐current formulation is only accurate on a broader region when the FE mesh is sufficiently fine to resolve the skin depth.

    Research limitations/implications – The paper is restricted to frequency‐domain simulations.

    Practical implications – The results of the paper improve the understanding of higher‐frequency parasitic effects in electrical drives with long windings.

    Originality/value – The paper shows the limitations of the FE methods used for determining the parameters of the TLMs and remedies to avoid these.