PURPOSE: To improve shielding performance and to reduce Joule hear, by using a superconductor to the conduction section of a low temperature damper.
CONSTITUTION: A low temperature damper 51 of the rotor of a superconductive rotary electric machine is equipped with a superconductor 51a fixed to the grooves of a cylindrical support 51b. This superconductor 51a is provided axially and circumferentially to form a squirrel-cage electric circuit. In order to play a role as a radiating shield, the low temperature damper 51 is kept to 80∼100°K with a low temperature gas going through a cooling hole 51c. This superconductor 51a is formed in e.g. an oxide superconductor Y-Ba-Cu-O. If the variable field is applied to the low temperature damper 51, the current to deny the variable field will flow through the superconductor 51a, so that a remarkable shielding effect can be taken.
| WO/2023/287397 | AN ELECTRICAL GENERATOR AND COOLING SYSTEM |
| JPS56157257 | ROTOR FOR SUPERCONDUCTIVE ROTARY MACHINE |
| JPS63228957 | ROTOR FOR SUPERCONDUCTING ROTARY ELECTRIC MACHINE |
KOBAYASHI TAKASHI
IZUMI AKIFUMI
UEDA AKINORI
