Flywheel power storage device with superconducting magnetic bearing

摘要

PPROBLEM TO BE SOLVED: To provide a flywheel storage device capable of improving electromagnetic characteristic and performing cold storage for a long period of time. PSOLUTION: The flywheel storage device with a superconductive magnetic bearing is equipped with a flywheel 1, a rotational axis 2 to rotate the flywheel 1, a first controllable magnetic bearing 3 disposed in the lower part of the rotational axis 2, a first magnetic coupling 4 disposed in the lower part of the first controllable magnetic bearing 3, an intra-axis cryostat 5 equipped with a cooling storage agent 5B inside an inner tank 5A and levitated by a high-temperature superconductive magnet 7 disposed in the upper part of the rotational axis 2, a second controllable magnetic bearing 9 disposed in the upper part of the rotational axis 2 of the cryostat 5, and a second magnetic coupling 10 disposed in the upper part of the second controllable magnetic bearing 9. PCOPYRIGHT: (C)2011,JPO&INPIT