Open AccessAC Losses Analysis in stack of 2G HTS tapes in a coil
Author(s) -
В. Зубко,
S.S. Fetisov,
Sergey Zanegin,
V.S. Vysotsky
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1559/1/012115
Subject(s) - stack (abstract data type) , electromagnetic coil , materials science , hysteresis , finite element method , power (physics) , nuclear engineering , mechanical engineering , electrical engineering , computer science , structural engineering , condensed matter physics , engineering , physics , thermodynamics , programming language
The model coil with the racetrack geometry based on second generation (2G) High Temperature Superconducting (HTS) tapes has been developed for an electrical machine where a winding pack is a stack of 2G HTS tapes. It is important to evaluate transport current AC losses and possible methods to reduce them in a winding. In a device made of 2G HTS tapes, the main the AC losses are the hysteresis ones. Only numerical simulation permits to predict them in full. The FEM model for calculation of the hysteresis losses developed before for 2G HTS power cables was modified for a stack of the 2G HTS tapes in a coil. In this paper the methods to increase a computational speed are presented. Possible ways to reduce AC losses are discussed also. The details of the model and comparisons of calculations with measurements of the AC loss are presented.