Title :
A method of estimating the total AC loss in a high-temperature superconducting transformer winding
Author :
Sykulski, Jan K. ; Goddard, Kevin F. ; Stoll, Richard L.
Author_Institution :
Dept. of Electr. Eng., Southampton Univ., UK
fDate :
7/1/2000 12:00:00 AM
Abstract :
The paper presents a valuable extension to the new method of estimating total AC loss in solenoidal high temperature superconducting windings of the transformer type, where losses caused by external magnetic field and due to transport current are modeled together. This complex problem is solved using a highly nonlinear 2D finite difference formulation in the superconductor in combination with a linear finite element model representing the rest of the transformer. Comparison with measurements on a real device shows good agreement and validates the method as a practical tool
Keywords :
eddy current losses; finite element analysis; high-temperature superconductors; superconducting coils; transformer windings; external magnetic field; high-temperature superconducting transformer winding; linear finite element model; nonlinear 2D finite difference formulation; total AC loss; transport current; Conductors; Finite difference methods; Finite element methods; High temperature superconductors; Magnetic field measurement; Magnetic losses; Magnetic separation; Numerical models; Phase transformers; Windings;
Journal_Title :
Magnetics, IEEE Transactions on
