T. Ezaki et al., Analytical models for a mechanical strain of a modified D-shaped toroidal coil for 1 kWh experimental SMES, IEEE APPL S, 9(2), 1999, pp. 305-308
Several interesting characteristics in the strain force measurement of the
supporting structure of the modified D-shaped toroidal coil for 1 kWh exper
imental SMES (ESK) have been observed. A simple analytical model is develop
ed to simulate the measured characteristics. With this model, the mechanica
l behavior of the superconductor in the coil is studied. Calculated results
based on this model show good agreement with the observed characteristics.
Mechanical losses of the superconducting coil are also discussed using thi
s model.