NEW SUPERCONDUCTING COIL CONFIGURATION FO R ENERGY-STORAGE

Energy storage using superconducting: coils involves the problem of el ectromagnetic field pollution outside the considered system. Different configurations are widely studied: the torus, the alone solenoid and multiple parallel solenoids enclosed in one container. A new configura tion which minimizes the external pollution is studied in this paper. The theoretical system is composed of two spherical distributions of t he current which are concentric. The analytical study uses solution of Laplace equations. Parametric study covers energy, flux density and g eometrical data. The second study concerns the numerical approach of t his design using coaxial solenoids. A comparison between this new syst em and the known systems is presented as a conclusion.