| 摘要 |
A pseudo-Ievitation permanent magnet repulsive bearing and drive system arrangement for a large diameter, hollow centre composite flywheel for multi megawatt hours energy storage. The magnets are positioned in a frustrated cone to assist in centralising the running axis. The levitation system functions utilising multiple concentric rings of prime numbers of repulsive permanent magnets. Diaphragms, which deflect vertically and radially in concert with the flywheel as it speeds up, transmit torque between the flywheel and its drive system via a central drive shaft which rotates within active magnetic bearings or other bearing types. The lower fixed magnet arrays are elongated such that the cylindrical rotating magnets do not overhang at either end of the fixed magnet as the flywheel expands due to centrifugal force. |
