Application of Flux Diverters in High Temperature Superconducting Transformer Windings for AC Loss Reduction

Xinyu Fang, Xilian Wang, Yueming Sun, Wenjuan Song, Xiaoze Pei, Zhenan Jiang, Rodney Badcock, Nicholas Long, Jin Fang

Research output: Contribution to journalArticlepeer-review


Flux diverters (FDs) are used in High Temperature Superconducting (HTS) transformers for AC loss reduction and flux optimization. In this paper, a 2D axial symmetric superconducting winding model is proposed and two designs of flux diverters are applied to the windings. A homogenization approach is used to analyze the windings with large turn numbers. The key parameters including the number, width, height and the spatial positions of the FDs are adjusted for AC loss and magnetic flux analysis. The means of obtaining optimum designs of the FDs is provided and can be used to develop new winding designs with FDs, which contributes to better electromagnetic performance and higher efficiency of HTS transformers.

Original languageEnglish
Article number9525246
JournalIEEE Transactions on Applied Superconductivity
Issue number8
Early online date30 Aug 2021
Publication statusE-pub ahead of print - 30 Aug 2021


  • AC loss analysis
  • Concentric Windings
  • HTS transformer
  • magnetic flux analysis

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this