| 摘要 |
A pseudo-levitation permanent magnet repulsive bearing and drive system arrangement 1, 2, 3, 15 & 16 for a large diameter, hollow centre composite flywheel 18 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 13 of prime numbers of repulsive permanent magnets. Diaphragms 19, which deflect vertically and radially in concert with the flywheel 18 as it speeds up, transmit torque between flywheel 18 and the drive system via a central drive shaft 55 which rotates within active magnetic bearings or other bearing types. The lower fixed magnet arrays 26 are elongated such that the cylindrical rotating magnets do not overhang at either end of the fixed magnet as the flywheel 18 expands due to centrifugal force. |
