SUPERCONDUCTIVE MAGNETIC BEARING FOR SUPERCONDUCTIVE FLYWHEEL POWER STORAGE SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a superconductive magnetic bearing for a superconductive flywheel power storage system in which a flywheel can be floated without losing a function of SMB (superconductive magnetic bearing) through a coil power supply having UPS function for a specified time even if a refrigeration machine is stopped.SOLUTION: A superconductive magnetic bearing for a superconductive flywheel power storage system comprises: an inner tank container 4 housing a stator coil part 8 constituted by winding a high temperature superconductive wire material showing zero electric resistance equal to or less than liquid nitrogen temperature, and rare gas helium of refrigerant of the stator coil part; an outer tank container 5 for keeping vacuum space for making heat intrusion into the inner tank container 4 minimum; and a refrigerator. There is provided a cold insulation mechanism 9 adjacent to the stator coil part 8.SELECTED DRAWING: Figure 1