关键词: 永磁发电机, 轴向磁轴承, 参数设计, 有限元分析, 控制系统

Abstract: The structural design of the axial magnetic bearing for maglev high-speed permanent magnet generator was carried out, and the mathematical model was established to solve the axial electromagnetic force. The two-dimensional axisymmetric simulation model was established to simulate and analyze the axial bearing capacity, voltage drop and loss of the axial magnetic bearing. The simulation results were close to the calculation results of the mathematical model, which proves the correctness of the model. A three-dimensional simulation model was established, and it was found that the radial displacement of the main shaft had little effect on the shaft system. The axial magnetic bearing control system was designed with the bottom stress of rotor as the control target, and the electromagnetic bearing was applied to the field. Its research and engineering value has been validated.

Key words: permanent magnet generator, axial magnetic bearing, parameter design, finite element analysis, control system