Title :
Experimental and analytical studies on mechanical behavior of superconducting coil for SMES
Author :
Shimada, K. ; Hanai, S. ; Kushida, L. ; Hirabayashi, K. ; Kobayashi, T. ; Shimonosono, T. ; Hayashi, H. ; Tsutsumi, K. ; Irie, F. ; Horiuchi, Y. ; Ezaki, T.
Author_Institution :
Toshiba Corp., Yokohama, Japan
fDate :
3/1/2001 12:00:00 AM
Abstract :
The mechanical behavior of a superconducting coil is important for improving the stability and reducing the mechanical losses of SMES. Mechanical displacements of a model coil for 1 kWh experimental SMES (ESK) are measured and compared with analytical results using 2D FEM. Nonlinear behaviors, such as friction and sliding between conductors and spacers are considered in this model. The preliminary stress condition caused by refrigeration is also considered. The results of this analysis show a good agreement with the experimentally observed ones
Keywords :
electromagnetic forces; finite element analysis; friction; losses; stability; superconducting coils; superconducting magnet energy storage; 1 kWh; SMES; conductors; friction; mechanical behavior; mechanical displacements; mechanical losses reduction; nonlinear behavior; refrigeration; spacers; stability improvement; stress condition; superconducting coil; Conductors; Electromagnetic forces; Magnetic field induced strain; Mechanical variables measurement; Niobium compounds; Samarium; Shape; Superconducting coils; Testing; Titanium compounds;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
