Design a hybrid high T_c superconductor bearings for flywheel energy storage system

摘要

A vertical axis flywheel system was conceptualized, which uses a hybrid superconductor bearing set to carry the wheel part load. Multiple designs of magnetic bearing and superconductor bearing were analyzed by using conventional numerical magnetostatic analysis method. The best models were selected among four different types of permanent magnet bearings for upper bearing and two types of superconductor bearings for lower bearing, respectively. The vertical magnetic force of the high T_c superconductor radial bearing was experimentally estimated. These results were discussed in regard of application to the flywheel system with a passive hybrid magnetic bearing set.