JPS55132084A - Energy transfer device between superconductive coils - Google Patents

Abstract

PURPOSE:To transfer a magnetic energy of one superconductive coil to another superconductive coil efficiently at a short time by changing a current passage through igniting SCR properly according to a charging voltage of capacity. CONSTITUTION:An energy is stored in a superconductive coil 23 by excitation through a switch 22. From igniting SCR's 27, 28, a capacity 29 is charged and whenever it reaches a permissible voltage V1, SCR 24 is ignited, and the SCR 27 is turned off by a close loop current of the coil 23. An energy of the capacity 29 is transferred to a coil 25, and when voltage drops down to a given negative voltage V2, the SCR 27 is turned on and the SCR 24 off, which is repeated. Next, where current of the coil 25 becomes larger, the capcity 29 is charged to negative when the SCR's 27, 28 are kept ON, and whenever it reaches the given voltage V2, SCR 26 is turned ON and SCR 28 OFF. The capacity is resupplied with energy from the coil 23, and when it reaches the voltage V1, the SCR 28 is turned ON and the SCR 26 OFF; when it drops to the voltage V2, the SCR 26 is turned ON. All quantity of energy in the coil 23 can thus be transferred to the coil 25 through repeating the above process.