Numerical Modelling for AC Loss of the Second Generation HTS Tapes Under Alternating External Magnetic Fields Using the Finite Element Method

Abstract


Superconductivity is one of the most advanced technologies to use in technical applications especially in
electrical engineering applications. This technology is of great interest in R&D stage to fabricate electrical
power arraratus because of promising features such as higher efficiency, lower loss, better reliability, smaller
size and compact assembly compared with conventional electrical components. The most important properties of
high temperature superconducting (HTS) tapes are large current density, high power density and very low AC
loss. Yttrium-based second generation HTS tapes have got 100 times higher current density and 20 times higher
price compared with conventional copper wires. The most important limitation on application of
superconducting technology in power applications is AC loss of the HTS tapes. Many methods have been
developed during last decay in order to measure, estimate and calculate the AC loss of the HTS wires. One of the
low-cost, fast, and precise approaches is numerical modelling methods. In this paper, a numerical model for
yttrium-based second generation HTS tapes has been developed in order to calculate AC loss in transport
current mode and under external magnetic fields using the H-formaulation finite element method. The
dependency of the current density of tape to magnetic field has been considerd in the model

Keywords

References

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History

  • Receive Date: 06 November 2017
  • Revise Date: 25 February 2019
  • Accept Date: 19 September 2018
  • Publish Date: 22 October 2016

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